International Conference on Recent Advances in Mathematical and Physical Sciences

Transcription

1 International Conference on Recent Advances in Mathematical and Physical Sciences Faculty of Mathematical and Physical Sciences Dhaka , Bangladesh January 2018 ABSTRACTS

2 Editorial Board Dr. A A Mamun, Department of Physics Dr. Md. Sakawat Hossain, Department of Geological Sciences Dr. Md. Imdadul Islam, Department of Computer Science and Engineering Dr. Laek Sazzad Andallah, Department of Mathematics Dr. Syeda Shahanara Huq, Department of Statistics Dr. Md. Nurul Abser, Department of Chemistry Dr. Shafi M. Tareq, Department of Environmental Sciences Faculty of Mathematical & Physical Sciences Copyright reserved January 2018 ICRMPS 2018 is sponsored by University Grants Commission, Bangladesh Bangladesh Bank Department of Computer Science and Engineering, JU Institute of Information Technology, JU Institute of Business Administration, JU Faculty of Business Studies, JU Agrani Bank Limited, Bangladesh The above financial contributions are gratefully acknowledged

3 Programme Schedule Date: Inaugural Session 09:00 10:10 Conference registration Zahir Raihan Auditorium 10:10 10:20 Welcome address Prof. Dr. A K Majumder, Conference Chair 10:20 10:30 Introduction of foreign guests Prof. Dr. A A Mamun, Chair, Scientific Program Committee 10:30 10:35 Speech of special guest Prof. Sheik Md. Monzurul Huq, Treasurer, JU 10:35 10:40 Speech of special guest Prof. Dr. Amir Hossain, Pro-Vice Chancellor, JU 10:40 10:45 Speech of special guest Prof. Dr. Md. Abul Hossain, Pro-Vice Chancellor, JU 10:45 11:55 Speech of chief guest Prof. Dr. Farzana Islam, Vice Chancellor, JU 10:55 11:00 Vote of thanks Prof. Dr. Md. Sharif Uddin, Conference Secretary Plenary Talk Time Chair : Prof. Dr. Shariff Enamul Kabir Co-Chair : Prof. Dr. Md. Nurul Alam 11:30 12:15 Dr. Fatema Tanjia (France) Topic: An introduction to nanoplasmonics and plasmonic resonance in C 60 fullerens using a quantum hydrodynamic model 12:15 13:00 Dr. Uma Shaha (USA) Topic: Genetically Engineered Mouse Models: Application to Human Disease and Basic Research 13:00 14:00 Lunch Break Invited Talk Parallel Session -I (Phy+CSE) (Room: Stat # 103, Math-Stat Building) Time Chair : Prof. Dr. Md. Abul Hossain Co-Chair : Prof. Dr. Farid Ahmad Topic: Disorder induced low-energy 14:00 14:30 1. Prof. S Nakib (BD) quasiparticle states in hole doped cuprates: relevance to magnetic effect and T c degradation 14:30 15:00 2. Prof. M. Maksudur Rahman (Japan) Topic: Feature of a Silicon Quantum Dot Superlattice for High Efficiency Solar Cell 15:00 15:30 Tea Break Chair : Prof. Dr. Jugal Krishna Das Co-Chair : Dr. Md. Abdul Mannan 15:30 16:00 3. Prof. A. K. M. Fazlul Haque (DIU, IEEE) 16:00 16:30 4. Prof. M. Jahidur Rahman (BD) Topic: Global scenario of fluoride contamination in groundwater with special focus on Bangladesh Topic: Future of computing in the field of physical sciences Time Parallel Session II (Math+Stat+Phy) (Room: Stat # 115, Math-Stat Building) Chair : Prof. Dr. Syed Sabbir Ahmed Co-Chair : Dr. Mohammad Osman Gani

4 14:00 14:30 1. Prof. Dr. Laek Sazzad Andallah 14:30 15:00 2. Prof. A. Tomoeda (Japan, Math.) Topic: Jamology 15:00 15:30 Tea Break Time Chair : Prof. Dr. Kanchan Chowdhury Co-Chair : Dr. Mahtab Uddin Ahmmed 15:30 16:00 3. Dr. Md. Kamal Hossain 16:00 16:30 4. Dr. M. Nashir Uddin Topic: Discrete Model Boltzmann Equation Based on a Loosely Coupled Hexagonal grid in Two Dimensional Velocity Space Topic: A DFT study of the hexagonal boron cluster as an anode material for Lithium ion (Li + n ) storage Topic: Development of method for rapid quantification of glucose, fructose, and sucrose in mango juice by Chemometric techniques in De-noised FTIR spectroscopic data Time Parallel Session III (Chem+Geo+CSE) (Room: Stat # 117, Math-Stat Building) Chair : Prof. Dr. Delowar Hossain Co-Chair: Dr. Md. Ezharul Islam 14:00 14:30 1. Prof. A. T. M. Shakhwat Hossain (BD, Geology) Topic: Geosciences for Society and Sustainable Development 14:30 15:00 2. Prof. Md. Imdadul Islam (CSE) Topic: Evolution of Mobile Cellular Communications 15:00 15:30 Tea Break Chair : Prof. Dr. Elias Molla Co-Chair: Dr. Md. Enamul Haque 15:30 16:00 3. Prof. N Amin (Malaysia, Chem.) Topic: Inorganic Chemistry 16:00 16:15 16:15 16:30 16:30 16:45 Paper ID# Title: Application of Triangular Fuzzy Soft Sets in Medical Diagnosis Authors: Nirmal Kanti Mitra, Md. Yasin Ali, Kanak Ray Chowdhury, and Abeda Sultana Paper ID# Title: Developing Stochastic Linear Programming Model to Optimize Agricultural Production under Uncertain Flood Influence Authors: Sayedul Anam, Mahbub Parvez, Aminur Rahman Khan, and Md. Sharif Uddin Paper ID# Topic: Novel Triosmium Clusters Stabilized by Benzoxazol-2-thiolatoligand: Synthesis, X-ray Crystal Structure and Thermal Isomerization Author: Shafikul Islam, Md. Julhas A. Miah, Md. Manzurul Karim, Mohammad R. Karim, and Tasneem A. Siddiquee

5 Time 14:00 14:15 14:15 14:30 14:30 15:00 Parallel Session IV (Math+Geo) (Room: Stat # 116, Math-Stat Building) Chair : Dr. Md. Mahfuzul Haque Co-Chair : Dr. H. M. Sayem Paper ID# Topic: (3+1)-dimensional cylindrical Korteweg-de Vries equation for ion-acoustic waves Author: Dr. Shalauddin Paper ID# Title: Effect of Thickness Variation on Tin Oxide Based Transparent Conducting Oxide Layer Author(s): Rimon Chandra Debnath, Md. Kamal Hossain, Mst. Shamima Khanom, Munira Sultana, Rummana Matin, M. S. Bashar, Farid Ahmed, and Md. Abul Hossain Paper ID# Title: A semi-automated method for coastline extraction from satellite imagery: study from the coastal areas of Bangladesh Authors: Md. Mahfuzul Haque, and Xuan Zhu Paper ID# Title: Petrogenetic Characteristics of Detrital Fe-Ti Oxide Minerals of Brahmaputra River Sediments in Bangladesh Authors: A.S.M. Mehedi Hasan, Ismail Hossain, and Md. Aminur Rahman Paper ID# Title: Crystalline basement rocks from drillhole GDH-62 from Dighipara, Dinajpur, northwest Bangladesh: Petrologic and geochemical constraints Authors: Hasibul Zahan, Md. Sakawat Hossain, Md. Sakaouth Hossain, and Md. Aminur Rahman 15:00 15:30 Tea Break 15:30 16:00 16:00 16:30 Chair : Prof. Dr. Md. Sharif Hossain Khan Co-Chair: Prof. Dr. S M Mahbubul Ameen Paper ID# Title: Deformation characteristics of the Chittagong Tripura Fold Belt - An insight from the geometrical analysis of folded structures Authors: Md. Sakawat Hossain, Md. Maksudul Islam, Oniza Islam, Md. Sharif Hossain Khan, and Khalil R. Chowdhury Paper ID# Title: Petrology and Geochemistry of the Crystalline Basement rocks from Barapukuria Coal Basin, Dinajpur, Bangladesh Authors: Md. Shams Shahriar, S. M. Mahbubul Ameen, Md. Sakawat Hossain, Md. Sakaouth Hossain, Mohammad Nazim Zaman, and Md. Shah Alam Paper ID# Title: Reservoir Characterization using Well Logs and 2D Seismic Data of the Sangu Gas Field, Offshore Bangladesh Authors: Md. Upal Shahriar, Delwar Hossain, and Md. Sakawat Hossain Paper ID# Title: Characterization of pores in the lower Cambrian organic rich shales from the mid-upper Yangtze Block, South China Authors: Rumana Yeasmin, and Daizhao Chen

6 Date: Plenary Talk Time Chair : Prof. Abdul Mannan Chowdhury Co-Chair : Prof. Laek Sazzad Andallah 10:00 10:30 Dr. Edwin Bowles (UK) Topic: Energy: Global and National Perspective 10:30 11:00 Prof. Shariff Enamul Kabir (BD) 11:00 11:45 Prof. Md. Abdul Hoque (BD) 11:45 12:00 Tea Break Technical Session Topic: The untapped chemistry of saccharin (sach) and thiosaccharin (s-sach) with M 3 (CO) 10 L 2 carbonyls (M = Os, Ru, L = dppm, MeCN)-synthesis, structure and reactivity Topic: Mathematics as a Foundation of Research in Various Disciplines Time Parallel Session -I (Phy+CSE) (Room: Stat # 103, Math-Stat Building ) Chair : Prof. Dr. Mohammad Hanif Ali Co-Chair : Prof. Dr. Abu Sayed Md. Mostafizur Rahaman 12:00 12:15 12:15 12:30 12:30 12:45 12:45 13:00 Paper ID, Title and Authors Paper ID# Title: Dust-Acoustic Shock Structures in a Self-Gravitating Dusty plasmas with Trapped Ions and Dust of Opposite Polarity Authors: Ismita Tasnim, M. G. M. Anowar, S. Rawson, and A A Mamun Paper ID# Title: Applications of Artificial Neural Network (ANN) & Support vector machines (SVMs) in Predicting Stock Market Returns: A case study on Dhaka Stock Exchange Authors: Md. Siddikur Rahman, and H.M. Simon Paper ID# Title: Synthesis of vanadium oxide nanoparticles by pulsed plasma in liquid method Authors: Jahirul Islam Khandaker, Zhazgul Kelgenbaeva, Michio Koinuma, Akira Yoshiasa, and Tsutomu Mashimo Paper ID# Title: Dust-acoustic solitary waves and their multi-dimensional instabilities in dusty plasmas with dust of opposite polarity and trapped ions Authors: Ismita Tasnim, M. G. M. Anowar, M. M. Masud, and A A Mamun 13:00 14:00 Lunch Break 14:00 14:15 14:15 14:30 Chair : Prof. Dr. Md. Salahuddin Co-Chair : Dr. Jahirul Islam Khandaker Paper ID, Title and Authors Paper ID# Title: Pre-monsoon Flash Flood Forecasting over Northeastern Haor Region of Bangladesh using NWP and CPT Authors: Md. Shameem Hassan Bhuiyan, Md. Abdul Mannan Chowdhury, and Dewan Abdul Quadir Paper ID# Title: Positron-Acoustic Solitary Structures in Plasmas with Nonextensive q-distributed Electrons and Positrons Authors: Lutfun Nahar, and A. A. Mamun

7 14:30 14:45 14:45 15:00 Paper ID# Title: Dust-Ion-Acoustic Solitary and Shock Waves in Arbitrarily Charged Dusty Plasmas with Two-Temperature Superthermal Electrons Authors: Md. Sahadat Alam, L. Nahar, M. Salahuddin, and A. A. Mamun Paper ID# Title: Implementation of an Arduino based low cost secured Telemedicine system for Bangladesh Authors: Toufik Emon, Uzzal Kumar Prodhan, Muhammad Zahidur Rahman, and Israt Jahan 15:00 15:30 Tea Break 15:30 15:45 15:45 16:00 16:00 16:15 16:15 16:30 Chair : Prof. Dr. M. Salahuddin Co-Chair : Dr. Md. Shafiqul Islam Paper ID, Title and Authors Paper ID# Title: Semi-analytical ring-soliton solution of cylindrical Korteweg de Vries equation Authors: Abdul Mannan, Renato Fedele, and Sergio De Nicola Paper ID# Title: DIA Waves in Dusty Plasmas with bi-maxwellian Electrons Authors: Md. Mehdi Masud, and A. A. Mamun Paper ID# Title: Structural and Magnetic Properties of Gd and Cr co-doped BiFeO 3 Nanomaterials Authors: Mohammad Nazmul Hossain, M. A. Matin, M. A. Hakim, Manifa Noor, M. A. Al Mamun, M. M. Rhaman, F. A. Mozahid, and M. F. Islam Paper ID# Title: Markovian Decision Process Analysis on Traffic Congestion at Dhaka City Authors: Md. Abdur Rahman, and Md. Abdul Hoque Time Parallel Session II (Math+Stat) (Room: Stat # 115, Math-Stat Building) Chair : Prof. Dr. M. Mazibar Rahman Co-Chair : Prof. Dr. Alamgir Kabir 11:30 12:00 Tea Break 12:00 12:15 12:15 12:30 12:30 12:45 12:45 13:00 Paper ID, Title and Authors Paper ID# Title: Fitting Zero-Inflated Poission (ZIP) Model for Torrential Rainfall Data Authors: Azizur Rahman, Prashanjit Chandra Paul, Piash Paul, and Mariam Akter Paper ID# Title: Application of Probability Distributions for Wind Speed Modeling Author: Md. Moyazzem Hossain Paper ID# Title: Performance Analysis of Various Statistical Classification Techniques Using Different Data Mining Tools for Data Classification Authors: Md. Siddikur Rahman, and Md. Mamunur Rashid Paper ID# Title: Growth and Instability in Area and Production of Rape and Mustard oil seed in Bangladesh Authors: M. Taj Uddin, and Ruhul Amin 13:00 14:00 Lunch Break Chair : Prof. Dr. Mohd. Muzibur Rahman Co-Chair : Prof. Dr. Muhammad Nazrul Islam

8 14:00 14:15 14:15 14:30 14:30 14:45 14:45 15:00 Paper ID, Title and Authors Paper ID# Title: Pattern Recognition of Rainfall in Bangladesh Using Wavelet Transform Authors: Abdur Rahman, Ataul Mustufa Anik, and Zaki Farhana Paper ID# Title: Application of Support Vector Machine in Stock Market Forecasting Comparing with the ANN and ARIMA Models Authors: Faruq Abdulla, Md. Moyazzem Hossian, and Sharmin Akter Sumy Paper ID# Title: Elderly Health Status in Bangladesh: A Cross Sectional Stud Authors: Abdur Rahman, Mohammad Romel Bhuiayan, and Kanis Fatama Ferdushi Paper ID# Title: A study on prediction of rainfall using data mining techniques: An evidence of Chittagong district Authors: Sayedul Nahida Afroz, and Muhammad Mahabub Rahaman manik 15:00 15:30 Tea Break 15:30 15:45 15:45 16:00 16:00 16:15 16:15 16:30 Chair : Prof. Dr. Syeda Shahanara Huq Co-Chair : Md. Moyazzem Hossain Paper ID, Title and Authors Paper ID# Title: Modified BEKK Model and its Application to Selected Financial Time Series of Bangladesh Authors: Lakshmi Rani Kundu, and Ajit Kumar Majumder Paper ID# Title: Applications of Artificial Neural Network (ANN) & Support vector machines (SVMs) in Predicting Stock Market Returns: A case study on Dhaka Stock Exchange Authors: Md. Siddikur Rahman, and H. M. Simon Paper ID# Title: Identifying the Key Determinants of Women Empowerment: A Perception Survey on Academicians in Tertiary Education Authors: Most. Tajmary Mahfuz, Mr. Rafi Al Mahmud, and Ms. Subhenur Latif Paper ID# Title: Neural Based Seasonal Adjustment in Time Series: A Comparative Study Authors: M. Atikur Rahman, and Ajit Kumar Majumder Time 12:00 12:15 12:15 12:30 12:30 12:45 Parallel Session III (Chem+Geo+Env) (Room: Stat # 117, Math-Stat Building) Chair : Prof. Dr. Shafi M. Tareq Co-Chair : Prof. A. H. M. Sadaat Paper ID, Title and Authors Paper ID# Title: Optimal control of a Threatened Wildebeest-Tiger the prey-predator System in Sundarban Ecosystem Authors: Nazmul Hasan, Md. Hyder Ali Biswas, and Md. Sharif Uddin Paper ID# Title: Optimal Control of Greenhouse Horticulture Authors: Shohel Ahmed, and Adul Alim Paper ID# Title: Mapping of landslide prone area and its specific causes: a case study of Darjeeling, West Bengal Authors: Javed Ikbal, and Syed Ahmad Ali

9 12:45 13:00 Paper ID# Title: Study of an eco-epidemiological system with Holling type-ii functional response Author: Harekrishna Das 13:00 14:00 Lunch Break 14:00 14:15 14:15 14:30 14:30 14:45 14:45 15:00 Chair : Prof. Dr. Md. Khabir Uddin Co-Chair : Dr. A. K. M. Rashidul Alam Paper ID, Title and Authors Paper ID# Title: Cost Effective Treatment of Tannery Waste Water Authors: Mohammad Nazmul Hossain, Anamika Roy, M. A. Matin, Ashiqur Rahman, Didarul Islam, and M. F. Islam Paper ID# Title: Optimal Control of Waste Water Cleaning Process Authors: Shohel Ahmed, and Sumaiya Rahman Paper ID# Title: Evaluation of chromium uptake efficiency using Spirulina platensis Geiter and Chlorella vulgaris Beijerinck in tannery industrial waste water Authors: Riduanul Islam Talukder Shashi, A. K. M. Rashidul Alam, John Liton Munshi, and Chapol Kumar Roy Paper ID# Title: Strategies and barriers towards climate change: Challenges in agricultural sector in Bangladesh Authors: Kanis Fatama Ferdushi, Md. Samiul Islam, and Abdur Rahman 15:00 15:30 Tea Break 15:30 15:45 15:45 16:00 16:00 16:15 16:15 16:30 Chair : Prof. A. T. M. Shakhwat Hossain Co-Chair : Prof. Dr. Md. Abdur Rab Paper ID, Title and Authors Paper ID# Title: Quantitative Approaches in the Field of Geosciences Authors: Md. Sakawat Hossain, S. M. Mahbubul Ameen, and Rumana Yeasmin Paper ID# Title: Meso-scale tectonic structures in part of Aravalli fold belt, northwestern India: implication to paleo-stress analysis Authors: Javed Ikbal, and Syed Ahmad Ali Paper ID# Title: Characterisation of Heavy Mineral Sand Deposits of Bangladesh Author: Eunuse Akon Paper ID# Title: Miocene Reservoir Study, Mid-Eastern Bangladesh Authors: Abdus Samad Azad, Zabir Hossain, and Edwin Bowles Time 12:00 12:15 Parallel Session IV (Math+Geo) (Room: Stat # 116, Math-Stat Building) Chair : Prof. Dr. Md. Nurul Alam Co-Chair : Dr. Md. Shafiqul Islam Paper ID, Title and Authors Paper ID# Title: Thermal Behavior and Magnetic Properties of Co-rich Nd2Fe14B/Fe3B Nanocomposite Magnetic Melt-spun Ribbons with partial substitution of Tb for Nd Authors: Palash Chandra Karmaker, Md. Obaidur Rahman, Nguyen Huy Dan, Samia lslam Liba, Per Nordblad, and Sheikh Manjura Hoque

10 12:15 12:30 12:30 12:45 12:45 13:00 Paper ID# Title: Effects of vortex-like ion distribution on dust-acoustaic solitary waves in a selfgravitating opposing polarity dust plasma medium Authors: A. Paul, G. Mandal, A. A. Mamun, and M. R. Amin Paper ID# Title: Design and development of voltage and over-load current protector for three phase motor Authors: Farzana Ferdous, and Md. Abdul Mannan Chowdhury Paper ID# Title: Instability and Growth of Temperature, Rainfall and Humidity in Bangladesh Authors: Md. Meshbahur Rahman, Mohammad Aminul Kaiser, and Kanis Fatama Ferdushi 13:00 14:00 Lunch Break 14:00 14:15 14:15 14:30 14:30 14:45 14:45 15:00 Chair : Prof. Dr. Abeda Sultana Co-Chair : Dr. Aminur Rahman Khan Paper ID, Title and Authors Paper ID# Title: Base Stock Stochastic Inventory System in Jackson Networks Authors: Mohammad Ekramol Islam, Md. Amirul Islam, and Sayeed Sabbir Ahmed Paper ID# Title: Optimal production model with quality sensitive market demand, partial backlogging and permissible delay in payment Author: Brojeswar Pal Paper ID# Title: A Numerical Study on One-Dimensional Reaction-Diffusion Equation and Fisher s Equation Authors: Faria Ahmed Shami, and Laek Sazzad Andallah Paper ID# Title: Impact of Submarine Landslides in Water Reservoirs: Variation of Height of Obstacles Authors: Jeevan Kafle, and Bhadra Man Tuladhar 15:00 15:30 Tea Break 15:30 15:45 15:45 16:00 16:00 16:15 16:15 16:30 Chair : Prof. Dr. Laek Sazzad Andallah Co-Chair : Dr. Abdur Rashid Paper ID, Title and Authors Paper ID# Title: Dynamic flow-obstacle-interaction using quasi-two-phase mass flow model Authors: Khim B. Khattri, and Bhadra Man Tuladhar Paper ID# Title: Interaction of Two-Phase Debris Flow with Lateral Solid Walls: Dynamic Impact Pressure and Contraction Ratio Authors: Parameshwari Kattel, and Bhadra Man Tuladhar Paper ID# Title: Generalized Quasi Two-Phase Mass Flow Model : Derivation and Description Authors: Puskar R. Pokhrel, and Bhadra Man Tuladhar Paper ID# Title: Formulation of Mixed Type Trapezoidal Intuitionistic Fuzzy Transportation Problem (MTTpIFTP): An Intuitionistic Fuzzy Approach Authors: Nizam Uddin Ahmed, Aminur Rahman Khan, and Md. Sharif Uddin

11 Date: Plenary Talk Technical Session Parallel Session -I (Phy+CSE+Chem) (Room: Stat # 103, Math-Stat Building) Time Chair : Prof. Dr. Md. Sharif Uddin Co-Chair : Dr. Md. Sabbir Alam 12:00 12:30 Prof. M. Hasegawa (Japan, Chem.) Topic: Facile Synthesis of Thiacalix[n]thiophene derivatives 12:30 12:45 12:45 13:00 Time Chair : Prof. Swapan Kumar Dhar Co-Chair : Prof. Jahidur Rahman 10:00 10:45 Prof. K. Sugiura (Japan, Chem) 10:45 11:30 Prof. A A Mamun 11:30 12:00 Tea Break Topic: pai-expanded Biaryls and Their Photophysical Properties Topic: Open issues in dusty plasma models for the study of solitary and shock waves Paper ID, Title and Authors Paper ID# Title: Design and Development of Voltage and Over-load Current Protector for Three Phase Motor Authors: Farzana Ferdous, and Md. Abdul Mannan Chowdhury Paper ID# Title: Identifying Differentially Expressed Genes Using Mode Fold Change Author: Md. Fazlul Karim Patwary Time 12:00 12:15 12:15 12:30 12:30 12:45 12:45 13:00 Parallel Session II (Math+Stat) (Room: Stat # 115, Math-Stat Building) Chair : Prof. Dr. Obaidur Rahman Co-Chair : Dr. Mohammad Osman Gani Paper ID, Title and Authors Paper ID# Title: Investigation of the dynamical behavior in a three component SIRS Model Authors: Md. Shahariar Hossen, and M. Osman Gani Paper ID# Title: Algorithmic Approach to obtain an Initial Basic Feasible Solution for the Transportation Problems Authors: Mollah Mesbahuddin Ahmed, Aminur Rahman Khan, and Faruque Ahmed Paper ID# Title: MHD Viscous Compressible Fluid Flow with Induced Magnetic Field Authors: Md. Tusher Mollah, Muhammad Minarul Islam, and Md. Mahmud Alam Paper ID#81455 Title: Experimental Investigation of LDB-Type Flapping Wind Turbine Author: Md. Sabbir Alam, Hiroyuki Hirahara

12 Time 12:00 12:15 12:15 12:30 12:30 12:45 12:45 13:00 Parallel Session III (Chem+Geo+Env) (Room: Stat # 117, Math-Stat Building) Chair : Prof. Dr. Md. Manzurul Karim Co-Chair : K. M. Akkas Ali Paper ID, Title and Authors Paper ID# Title: Geochemical composition of the Plio-Pleistocene sandstones of the Chittagong Tripura Fold Belt (CTFB), eastern Bengal Basin: Implications for provenance and tectonic setting Authors: Nafisa Tamanaya Dina, M. Julleh Jalalur Rahman, Md. Sakawat Hossain, Rumana Yeasmin, and Abu Sadat Md. Sayem Paper ID# Title: Synthesis and Characterization of cu(ii), fe(iii) Complexes with Pyridine as a Ligand Authors: Faridul Islam, Md. Amran Hossain, Md. Mahbubur Rahman, Md. Zahidul Islam, Likson Chowdhury, Sreebash Chandra Bhattacharjee, and Jannat Al Foisal Paper ID# Title: Mathematics: Thinking Language Author: Syed Mizanur Rahman (Razu) Paper ID# Title: Physico-Chemical study of the mixed micelle formation between tetradecyltrimethylammonium bromide and benzyldimethylhexadecylammonium chloride in aqueous/urea solution at various temperatures Authors: Mohammad Robel Molla, Malik Abdul Rub, and Md. Anamul Hoque Time 12:00 12:15 12:15 12:30 12:30 12:45 12:45 13:00 13:00 13:15 Parallel Session IV (Math+Geo) (Room: Stat # 116, Math-Stat Building) Chair : Prof. Dr. Md. Imdadul Islam Co-Chair : Prof. Dr. Amir H. Bhuiyan Paper ID, Title and Authors Paper ID# Title: Theoretical Modification to the Transportation Problem Authors: Md. Ashraful Babu, M. A. Hoque, and Md. Sharif Uddin Paper ID# Title: A Time Dependent Inventory Model for Exponential Demand Rate Considering Decay in Items Authors: Shirajul Islam Ukil, Md. Siddique Hossain, and Md. Sharif Uddin Paper ID# Title: Existence of Periodic Traveling Wave Solutions in asis Epidemiological Model with a Nonlinear Incidence Rate Authors: Md. Ariful Islam Arif and M. Osman Gani Paper ID# Title: Numerical Analysis on Heat Transfer Augmentation using ag-water Nanofluids Authors: M. M. Billah, M. Sharif Uddin, M. N. Islam, and Aminur Rahman Khan Paper ID# Title: Geo-environmental characteristics of the relocated tannery industrysite around Savar, Dhaka Authors: Mahmuda Khatun, Md. Mahfuzul Haque, Khairul Bashar, and Sultana Nasrin Nury 13:15 14:00 Lunch Break

13 Poster Presentation 14:00 15:30 Accepted Papers Geological Sciences/Environmental Sciences Paper ID: Title: Analysis of Dynamic Model for the Transmission of Chikungunya Epidemic in Bangladesh Author(s): Reshma Akter, Md. Haider Ali Biswas, and Payer Ahmed Paper ID: Title: Effectiveness of Media in Controlling Infectious Diseases : A Mathematical Analysis Author(s): Sharmin Sultana Shanta, and Md. Haider Ali Biswas Paper ID: Title: Approaches and Associated Costs for the Removal of Abandoned Buildings of KUET in Bangladesh Author(s): Md. Shah Jamal, Md. Farhad Hossain Rakib, and Md. Habibur Rahman Sobuz Paper ID: Title: Some Observations and Lessons Learned: Cyclone MORA and Land slide of Chittagong, Bangladesh Author(s): Md. Shah Jamal, Md. Meskatul Islam, Md. Habibur Rahman Sobuz, and Md. Manjur Morshed Paper ID: Title: Instability and Growth of Temperature, Rainfall and Humidity in Bangladesh Author(s): Md. Meshbahur Rahman, Mohammad Aminul Kaiser, and Kanis Fatama Ferdushi Paper ID: Title: Application of High Voltage Discharge Plasma for Treatment of harmful water microorganisms Chlamydomonas Algae Author(s): Md. Abdul Halim, and Ruma Paper ID: Title: Soil chronoassociation of the Brahmaputra (Jamuna), Padma (Ganges) and Meghna interfluve, Bengal Basin, Bangladesh Author(s): Zahidul Bari, Md. Sharif Hossain Khan, and Khalil R. Chowdhury Paper ID: Title: An experimental evaluation of the direct and indirect effects of endemic seaweeds, barnacles, and invertebrate predators on the abundance of the introduced rocky intertidal barnacle Balanus glandula Author(s): A. K. M. Rashidul Alam, and Takashi Noda Mathematics Paper ID: Title: Some Structures of Soft Hemirings Author(s): Md. Yasin Ali, Kanak Ray Chowdhury, Abeda Sultana, and Nirmal Kanti Mitra Paper ID: Title: On Fuzzy Soft Hemirings Author(s): Abeda Sultana, Md. Yasin Ali, Kanak Ray Chowdhury, and Nirmal Kanti Mitra

14 Paper ID: Title: On Moore-Penrose Inverse of Matrices over Semirings Author(s): Kanak Ray Chowdhury, Md. Yasin Ali, Abeda Sultana, and Nirmal Kanti Mitra Paper ID: Title: Perishable Inventory model for Postponed demand with Reworks Author(s): Mohammad Ataullah, Mohammad Ekramol Islam, and Md. Sharif Uddin Paper ID: Title: Fuzzy production-inventory model involving variable demand with normal distribution of lead time for deteriorating item Author(s): Rabeya Sarker, Aminur Rahman Khan, and Md. Sharif Uddin Paper ID: Title: Solving Transportation Problem Author(s): Aminur Rahman Khan, Nahid Sultana, and Md. Sharif Uddin Paper ID: Title: Solving Unbalanced Transportation Problem in MMUM, Where Difference of Supply and Demand Claimed as Prime Number Author(s): Md. Main Uddin, Abdur Rashid, and Md. Sharif Uddin Paper ID: Title: Mathematical model analysis for glucose insulin regulation inside the whole body system Author(s): Sonia Akter, Md. Sirajul Islam, and Md. Haider Ali Biswas Paper ID: Title: An Innovative Approach to Solve Balanced Assignment Problems Author(s): Md. Nurul Huda, Faruque Ahmed, and Md. Sharif Uddin Paper ID: Title: Effect of Exponential Thermal Boundary Condition on Unsteady Magnetohydrodynamic Convection in a Square Enclosure Filled with Fe3O4 Water Ferrofluid Author(s): Eare Md. Morshed Alam, Md. Mustafizur Rahman, and Md. Sharif Uddin Paper ID: Title: Evaluation of the Performance of Various Transportation Problem Solving Algorithms Author(s): Mollah Mesbahuddin Ahmed, Aminur Rahman Khan, and Md. Sharif Uddin Paper ID: Title: An Approach for Solving Symmetric Traveling Salesman Problems Author(s): Kalyan Mallick, Mohammad Nazrul Islam, and Md. Sharif Uddin Paper ID: Title: A new Approach to solve balanced and unbalanced Assignment Problems Author(s): Shabiha Yesmin, Md. Shrif Uddin, and Aminur Rahman Khan Paper ID: Title: A Mathematical Model for Minimizing the Harmful Effects of Drug Addiction in Bangladesh Using Optimal Control Technique Author(s): Md. Azmir Ibne Islam, and Md. Haider Ali Biswas Paper ID: Title: Development of an Algorithm for Solving Travelling Salesman Problem Author(s): Emran Islam, Abdur Rashid, and Faruque Ahmed

15 Paper ID: Title: Comparison the Forecasting Performance of ARIMA and ARFIMA model Author(s): Md. Mossabber Chowdhury, Md. Moyazzem Hossain, and Ajit Kumar Mazumdar Paper ID: Title: Numerical solutions of higher order boundary value problems (BVP s) using finite difference method (FDM) Author(s): Md. Amirul Islam, Nurul Alam Khan, and Abdur Rashid Paper ID: Title: Optimization Analysis between Broker and Consumer in Cloud Computing Author(s): Samen Bairaghi, Golam Ittihad Udoy, and Munnujahan Ara Paper ID: Title: Modeling the Effect of Adoptive Cell Transfer Therapy for the Treatment of Leukemia Author(s): Mst. Shanta Khatun, Md. Aminul Islam, and Md. Haider Ali Biswas Paper ID: Title: Forecasting Agricultural Production in Bangladesh Using Multiple Linear Regression (MLR) Analysis Author(s): Sayedul Anam, Aminur Rahman Khan, and Md. Sharif Uddin Paper ID: Title: Stability analysis of PTWsin a diffusivepredator-prey model Author(s): AfiaFarzana, Popy Das, Muztaba Ahbab, and M. Osman Gani Paper ID: Title: Periodic traveling wave solutions in a reaction-diffusion system of predator-prey model Author(s): Md. Muztaba Ahbab, Afia Farzana, and M. Osman Gani PaperID: Title: Existence Existence of periodic traveling waves in the SIS epidemic model Author(s): Taslima Khatun, Md. Ariful Islam Arif, Md. Shahariar Hossen, Md. Muztaba Ahbab, and M. Osman Gani Paper ID: Title: Effect of HFS current on nerve cell dynamics through Hodgkin-Huxley model Author(s): Navojit Dhali Pallab, Mirazul Islam, and M. Osman Gani Paper ID: Title: Bifurcation Analysis of Periodic Traveling Waves in a Two-Component Predator-Prey Model Author(s): Popy Das, Afia Farzana, and M. Osman Gani Paper ID: Title: Stability of periodic traveling waves in a reaction-diffusion type model of cardiac excitation Author(s): Mirazul Islam, Navojit Dhali Pallab, Md. Abu Talha, and M. Osman Gani Paper ID: Title: Inequality Property of Interchange of Base and Index Author(s): Md. Maniruzzaman Miah

16 Computer Science and Engineering Paper ID: Title: Word Sense Disambiguation for Bangla Words Using Apriori Algorithm Author(s): Mohammad Shibli Kaysar, and Mohammad Ibrahim Khan Paper ID: Title: Pattern Recognition of Rainfall in Bangladesh Using Wavelet Transform Author(s): Abdur Rahman, Ataul Mustufa Anik, and Zaki Farhana Paper ID: Title: Application of Support Vector Machine in Stock Market Forecasting Comparing with the ANN and ARIMA Models Author(s): Faruq Abdulla, Md. Moyazzem Hossian, and Sharmin Akter Sumy Paper ID: Title: Cloud based offloading algorithm to increase energy efficiency of smartphone battery life Author(s): Md. Mahfujur Rahman, and Md. Reazul Islam Paper ID: Title: Remote Temperature Sensing Line Following Robot with Bluetooth Data Sending Capability Author(s): Tajim Md. Niamat Ullah Akhund, Ikhtiar Ahmed Sagar, and M. Mesbahuddin Sarker Statistics Paper ID: Title: Predicting the Rice Production of Bangladesh by Machine Learning Technique Author(s): Shohel Mahmud Paper ID: Title: Approaches and Associated Costs for the Removal of Abandoned Buildings of KUET in Bangladesh Author(s): Md. Shah Jamal, Md. Farhad Hossain Rakib, and Md. Habibur Rahman Sobuz Paper ID: Title: Modelling for Forecasting the Rice Production of Jessore, Rangpur, Dinajpur, Kushtia and Pabna Districts in Bangladesh Author(s): Md. Moyazzem Hossain, and Arafat Rahman Paper ID: Title: Modeling of Mean Sea Level of Bay of Bengal: A Comparison between ARIMA and ANN Author(s): Md. Moyazzem Hossain, Shezan Ahmed, and Md. Habibur Rahman Paper ID: Title: Comparison the Forecasting Performance of ARIMA and ARFIMA model Author(s): Md. Mossabber Chowdhury, Md. Moyazzem Hossain, and Ajit Kumar Mazumdar Paper ID: Title: On the Marginal Likelihood Method of Estimating and Testing Parameters of Remainder Disturbances Follow a Specified AR(p) or MA(q) Process Author(s): Lakshmi Rani Kundu, and Ajit Kumar Majumder

17 Paper ID: Title: Integrating Overweight-obesity and Reproductive Factors of Married Women in Bangladesh Author(s): Md. Meshbahur Rahman, Zaki Farhana, Tania Akhter Tani, and Mohammad Ohid Ullah Paper ID: Title: A Comparative Study among Poisson, Negative Binomial and Hermite Regression Author(s): Shohel Mahmud, Md. Moyazzem Hossain, and Karimuzzaman Sunny Paper ID: Title: Co-integration of climate series and Agricultural production of Bangladesh: Comilla district Author(s): Fabiha Tasnim Aroni, and Ajit Kumar Majumder Paper ID: Title: On the Performance of Automatic Forecasting Analytics: A Monte-Carlo Simulation Study Author(s): Farhana Akter Bina Paper ID: Title: Technical Analysis to Evaluate Behavior of Stocks and Use of Technical Indicators in Computer Intensive Method An Application to Selected Stocks of DSE Author(s): Sharmin Islam Physics Paper ID: Title: Solitary Waves in Rotational Pulsar Magnetosphere Authors: T. I. Rajib, A. A. Mamun, and S. Sultana Paper ID: Title: Determination of Effective Dose of the Thyroid Gland in Nuclear Diagnostic During Thyroid Scan Author(s): Maryam Mumu, Farzana Ferdous, Md. Selim Reza, Kumaresh Chandra Paul, and Golam Abu Zakaria Paper ID: Title: Effects of Gamma Irradiation on Structural, Optical and Morphological Characteristics of Nanostructured Cupric Oxide Thin Film Authors: Humayun Kabir, Pooja Sarker, Sazzad Hossain, Md. Nasrul Haque Mia, Mahbubul hoq, and Md. Abdul Mannan Chowdhury Paper ID: Title: Fabrication and Characterization of Sawdust Fiber Reinforced Acrylonitrile Butadiene Styrene Composites Author(s): Nabila Tasnim Nova, Budrun Neher, Md. Mahbubur Rahman Bhuiyan, Md. Abdul Gafur, Md. Kamal Hossain, Mst. Shamima Khanom, Farid Ahmed, and Md. Abul Hossain Paper ID: Title: Design and Development of Microcontroller Based Radiation Survey Meter Using Two Scintillation Detector Author(s): Humayun Kabir, Ariful Alam, Kazi Golam Martuza, Fahmida Akter, Farhana Hafiz, and Md. Abdul Mannan Chowdhury

18 Paper ID: Title: Dust-Acoustic Solitary Waves in a Self-Gravitating Opposite Polarity Dust-Plasma Medium with Trapped Ions Author(s): Ismita Tasnim, M. G. M. Anowar, S. Rawson, and A A Mamun Paper ID: Title: Investigation of Fiber Loading on Physico-Mechanical Properties of Bamboo Fiber Reinforced ABS Polymer Composite Author(s): Md. Rashedul Islam, Md. Kamal Hossain, Mst. Shamima Khanom, Budrun Neher, Md. Abdul Gafur, Farid Ahmed, and Md. Abul Hossain Paper ID: Title: Extraction of Different Natural Dyes from Flower Plants Author(s): S. M. Amir-Al Zumahi, Md. Kamal Hossain, Shariful Islam, Md. Nurul Abser, Rummana Matin, M. S. Bashar, Farid Ahmed, and Md. Abul Hossain Paper ID: Title: Design and Development of Microcontroller Based Digital Soil ph Meter Author(s): Humayun Kabir, Naima Akter Roly, Farhana Hafiz, Fahmida Akter, Kazi Golam Martuza, and Md. Abdul Mannan Chowdhury Paper ID: Title: Simulation of Track and Landfall of Cyclonic Disturbances over the Bay of Bangal Using WRF-ARW Model Author(s): Humayun Kabir, Shammy Akter, Shuvro Kumar Dev, Muhammad Abul Kalam Mallik, Md. Abdul Mannan, and Md. Abdul Mannan Chowdhury Paper ID: Title: Simulation of Pre-monsoon Convective Systems for Understanding Their Thermodynamic Features Using NWP Model Author(s): Humayun Kabir, Shuvro Kumar Dev, Shammy Akter, Md. Abdul Mannan, Muhammad Abul Kalam Mallik, and Md.Abdul Mannan Chowdhury Paper ID: Title:Investigation of Sol-Gel Synthesis of Nano-Zinc Oxide Rod Thin Films Author(s): Humayun Kabir, Umme Habiba, Md. Nasrul Haque Mia, Mahbubul Hoq, Kazi Golam Martuza, and Md. Abdul Mannan Chowdhury Paper ID: Title: Investigation of Optical, Structural and Morphological Properties of Gamma Irradiated Mg Doped nano-zno Thin Films Author(s): Humayun Kabir, Sazzad Hossain, Pooja Sarker, Md. Nasrul Haque Mia, Mahbubul Hoq, and Md. Abdul Mannan Chowdhury Paper ID:81301 Title: Eigenmode analysis of spherical brain activity via neural field theory Author(s): Humayun Kabir, Pooja Sarker, Sazzad Hossain, Md. Nasrul Haque Mia, Mahbubul Hoq, and Md. Abdul Mannan Chowdhury 15:30 16:00 Tea Break 16:00 17:00 17:00 20:00 Closing Ceremony & Cultural Program Venue: VIP Lounge, Central Cafeteria, JU Gala Dinner Venue: VIP Lounge, Central Cafeteria, JU

19 Paper ID: An introduction to nanoplasmonics and plasmonic resonance in C60 fullerens using a quantum hydrodynamic model F. Tanjia, J. Hurst, P.-A. Hervieux, and G. Manfredi Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS and Université de Strasbourg, BP 43, F Strasbourg Cedex 2, France Recent years have witnessed a remarkable surge in interest for the electronic properties of new materials, particularly when excited by electromagnetic radiation. This is a very vast domain of research that encompasses all sorts of nano-objects, new materials like graphene, as well as metamaterials whose structure can be engineered so as to display some particular optical properties. We particularly focus our attention on metallic nano-objects and the composite metamaterials that can be constructed out of them, such as networks of interacting nanoparticles. Standard methods to study the electron response such as the time-dependent density functional theory (TDDFT) or Hartree-Fock (HF) equations are computationally very costly in terms of run time and memory storage. On the other hand, recent approaches rely on much simpler methods based on improvements of the classical Mie theory. In this particular workɨ, we are intended in the development and implementation of a set of quantum hydrodynamic (QHD) models to investigate many open problems in the emerging field of nanoplasmonics. Such models are sufficiently simple to be run on standard computers (desktop PC or small university cluster), but contain enough physics to study the electron response beyond the Mie model in particular nonlinear, nonlocal, and quantum effects. The combination of flexibility and accuracy of QHD models makes them an ideal tool to investigate many open problems in the emerging field of nanoplasmonics. We have studied so far the breathing mode of C60 fullerenes by implementing QHD model by means of a variational approach. The ground state and the linear response frequency of the system is studied. The electrons oscillate with a frequency of the order of plasma oscillations (volume plasmon). The result is verified by QHD numerical codes as well as density functional theory (DFT) calculations. A further investigation to study the dipole mode in the nonlinear regime is under way. In the near future nonlinear, nonlocal, and quantum effects of several configurations of nano-objects (i.e., dimers and trimers of metallic nanoparticles, nanoshells, metal-dielectric multilayers, nanoparticles in the vicinity of a thin metal film, and arrays of nanoparticles interacting via the dipole force) will be studied. Paper ID: Disorder induced low-energy quasiparticle states in hole doped cuprates: relevance to magnetic effect and T c degradation S.H. Naqib Department of Physics, University of Rajshahi, Rajshahi 6205, Bangladesh Substitution of isovalent and non-magnetic Zn in the CuO 2 plane strongly perturbs the electronic structure and magnetic behavior of strongly electron correlated hole doped cuprate high-t c superconductors. The physics behind the anomalous enhancement of uniform magnetic susceptibility, χ, in Zn substituted cuprates is unclear till date. The magnetic behavior has been described mainly in terms of two contrasting scenarios. i) Independent localized moments appearing in the vicinity of Zn arising because of the strong electronic/magnetic correlations present in the host compound and ii) transfer of quasiparticle spectral 1

20 weight and creation of weakly localized low energy states linked to each Zn atom in place of an in-plane Cu. For this second scenario, one would expect a direct relation between Zn induced suppression of superconducting transition temperature, T c, and the magnitude of the enhanced magnetic susceptibility. We have explored this possibility by analyzing the χ(t) and T c (x, y) data of sintered La 2-x Sr x Cu 1-y Zn y O 4 with wide range of hole contents, p (= x), and Zn concentrations (y). Results of this analysis provide us with a unique framework to explain the T c degradation and anomalous normal state magnetic enhancement of disordered cuprates. Keywords: High-T c cuprate superconductors; effect of disorder; transition temperature; bulk magnetic susceptibility; pseudogap; Cooper pair-breaking Paper ID: Feature of a Silicon Quantum Dot Superlattice for High Efficiency Solar Cell Mohammad Maksudur Rahman Institute of Fluid Science, Tohoku University, Katahira, Sendai, , Japan Present affiliation: Research and Development Division, Tokyo Electron Miyagi Limited, 1 Techno-Hills, Miyagi, Japan Silicon (Si) quantum dots (QDs) have the potential to dramatically improve solar power technologies and to intensely improve conventional Si photovoltaic (PV) cells. An electron inside a QD cannot move freely in all directions, so it behaves like an atom, which provides the opportunity to control the energy carrier states. With such QDs spaced sufficiently close together forming a quasi crystal structure, overlap of the wave functions of quantum-confined carriers in adjacent dots enables the formation of a real QD super lattice (QDSL) with the confined states smearing out to form a miniband. However, Si-QD-based solar cells fabricated using the conventional bottom-up process exhibit limited performance due to limited quantum confinement and low density of the QDs. This limitation has been overcome by the fabricating a sub-10-nm Si nano disk (ND) structure as a QDSL using an innovative technology combining biotemplates and neutral beam etching (NBE) processes. The QDSL consists of a stack of four 4-nm-thick Si-NDs and a 2-nm interlayer of SiC being alternatively arranged into a periodic array inside nanopillar structures with a density of cm-2 and just short distance of 10 nm as shown in scanning electron microscope (SEM) and transmission electron microscope images of Fig. 1 (a) and (b). The QDSL was then sandwiched in between a pn junction solar cell diode where QDSL acted as an intermediate (i) layer as shown in the SEM image of Fig. 1 (c). The role of the QDSL in miniband formation [1-3] and its impact on improving the PV performance of a Si solar cell was investigated with respect to a Si/silicon carbide (SiC) multi-quantum well (QW) solar cell in a p/i/n+ structure. The effect of vertical wavefunction coupling to form a miniband in the QDSL was perceived based on the solar-cell performance, showing a dramatic PV response in generating a high photocurrent density Jsc of ma/cm2, open circuit voltage Voc of 0.51 V, fill factor FF of 0.74, and efficiency of 11.07% with respect to QW solar cell with Jsc of ma/cm2, Voc of 0.49 V, FF of 0.69, and of 8.61% as shown in Fig. 1 (d). A wide range of photo-carrier transports by the QD arrays in the QDSL solar cell is possible in the internal quantum efficiency (IQE) spectra with respect to the IQE of QW solar cell. Moreover, a distinguished carrier transport characteristics of the QDSL could be extracted from an extended study with the passivation film of atomic layer deposition (ALD) aluminum oxide (Al2O3) with respect to conventional sputtered grown a-sic film in a p++/i/n+ junction solar cell [4-5]. Here high-doped-density p++ Si substrate acted as a hole conductor instead of generating photo-carriers so that we could observe the PV properties of the i-layer only. 2

21 The largest photocurrent density of 4.75mA/cm2 was generated from the QDSL with the ALD-Al2O3 passivated surface and is suitable for high-efficiency QD solar cells compared with a-sic-passivated (0.04 ma/cm2) QDSL surfaces. The enhanced PV performance of the QD solar cells was clarified in terms of simulating the absorption contributions for all possible transitions in the nanostructure with these different passivation films. Fig. 1. (a) SEM and (b) TEM images of nanopillar arrays of 4nm SiND/2nm SiC films to form Si QDSL structure. (c) SEM image of a p/i/n+ solar cell with Si QDSL film and (d) current-voltage characteristics of Si QDSL vs. QW solar cells. Acknowledgment The author thanks Professor Seiji Samukawa of Tohoku University, Japan, Professor Noritaka Usami of Nagoya University, Japan and Professor Yiming Li of National Chiao Tung University, Taiwan for their supports in providing with instrumental facilities. References M. M. Rahman, M.-Y. Lee, Y.-C. Tsai, A. Higo, H. Sekhar, M. Igarashi, M. E. Syazwan, Y. Hoshi, K. Sawano, N. Usami, Y. Li, and S. Samukawa, Progress in Photovoltaics: Research and Application, vol. 24, pp , Dec W. Hu, M. M. Rahman, M. Y. Lee, Y. Li, and S. Samukawa, Journal of Applied. Physics vol. 114, pp , M. Igarashi, W. Hu, M. M. Rahman, N. Usami, and S. Samukawa, Nanoscale Research Letter, vol. 8, pp. 228, M. M. Rahman, A. Higo, H. Sekhar, M. E. Syazwan, Y. Hoshi, N. Usami, and S. Samukawa, Japanese Journal of Applied Physics, vol. 55, pp , Feb M. M. Rahman, M.-Y. Lee, Y.-C. Tsai, A. Higo, Y. Hoshi, N. Usami, and S. Samukawa, IEEE Transactions on Electron Devices, vol. 64, pp , May Paper ID: Discrete Model Boltzmann Equation Based on a Loosely Coupled Hexagonal grid in Two Dimensional Velocity Space. Laek Sazzad Andallah Department of Mathematics,, Savar, Dhaka-1342, Bangladesh andallah@juniv.edu This article reviews a discrete model Boltzmann equation based on a loosely coupled hexagonal grid in two-dimensional velocity space. The model satisfies basic features of kinetic theory like conservation laws, H-theorem, dimension of null space of Linearized collision operator etc. Efficiency of the scheme is reported in terms of floating point operations. Numerical result shows good agreement with the qualitative behavior of the solution. 3

22 Paper ID: Jamology - from mathematical modeling toward practical use on traffic flow Akiyasu Tomoeda Japan Various kinds of the collective motion of Self-Driven Particles (SDP), such as vehicles and pedestrians, have attracted a great deal of attention in a wide range of fields during the last few decades. Most of these complex systems are interesting not only from the point of view of natural sciences for fundamental understanding of how nature works but also from the points of view of applied sciences and engineering for the potential practical use of the results of the investigations. Especially, interdisciplinary research for the dynamics of jamming phenomena in SDP systems, socalled Jamology, has progressed by developing sophisticated mathematical models considered as a system of interacting particles driven far from equilibrium with a central focus on the jamming phenomena in traffic flow. In this talk, starting from the definition of the jamming state in 1-d transportation system, several mathematical models and their relations are shown in the case of traffic flow. Then, the mechanism for forming the spontaneous traffic jam on expressway will be explained. Moreover, I would like to introduce the real demonstration experiment for absorbing traffic jams. Paper ID: A DFT study of the hexagonal boron cluster as an anode material for Lithium ion (Li n + ) storage Md. Kamal Hossain, Syed Mahedi Hasan, Milon, Md. Rakib Hossain, Farid Ahmed, and Md. Abul Hossain Department of Physics,, Savar, Dhaka-1342 There has been always a persistent search for creating cheaper and efficient energy storage devices. After its discovery of Li+ ion storage device has become the most preferred choice due to its high energy density. However, developing anode materials for more efficient lithium ion storage devices is still very challenging and lots of effort has been made recently to design efficient anode materials for such devices. Realizing the need for developing novel ion storage devices, present study aims to investigate hexagonal boron (B6) cluster s ability to store Lin+ (n=1,2) ions. Different geometrical, optical and electronic properties of lithium doped hexagonal boron clusters are studied. Theoretical investigations are done by using density functional theory (DFT). Our results show that energy band gap and chemical stability of the hexagonal B6 nanocluster increases when lithium atom(s) are doped in it. Adsorption energies of the doped cluster indicate that the lithium atoms are adsorbed very well in the nanocluster. The specific capacities of the LiB6 and Li2B6 are found to be 413 mah/g and 826 mah/g respectively. Keywords: 2D material; boron cluster; DFT; lithium ion storage; chemical stability; adsorption energy Paper ID: Development of Method for Rapid Quantification of Glucose, Fructose and Sucrose in Mango Juice by Chemometric Techniques in De-noised FTIR Spectroscopic Data Uddin M. N., Majumder A. K., Ahamed S., Saha B. K., and Motalab M. The present study is aimed to develop a chemometrics assisted method for predicting simple sugars (glucose, fructose and sucrose) in mango juice by using the best calibration technique among 4

23 Artificial Neural Network (ANN), Principal Component Regression (PCR) and Partial Least Squares Regression (PLSR) in de-noised data from Fourier Transformed Infrared (FTIR) spectrophotometer. Sixty four mixture solutions of eight different concentrations of sugars and fifteen commercial mango juices have been run in FTIR, and spectral data are used for development, validation and test of models. Standard Normal Variate (SNV), Savitzky-Golay (S-G) filtering and Multiplicative Scatter Correction (MSC) have been used for de-noising spectral data before calibration. Among the alternatives, the best prediction performance is noticed by ANN in spectral range cm-1 and S-G filtering (R2 0.99). Prediction of simple sugars concentration by ANN with FTIR spectroscopic data after de-noised with S-G filtering is a cost-effective and easy method for quantification of sugars in commercial mango juice. Paper ID: Application of Triangular Fuzzy Soft Sets in Medical Diagnosis Nirmal Kanti Mitra Bangladesh University of Business and Technology Md. Yasin Ali University of Information Technology & Sciences myasin.ali@uits.edu.bd Kanak Ray Chowdhury Mohammadpur Model School and College Abeda Sultana After the introduction of soft set by Molodtsov in 1999, it has become the most fruitful and interesting area of medicine and decision making problems. On the other hand E. Sanchez introduced the theory of fuzzy relation to Medical Diagnosis System. In this work, we have studied E. Sanchez s method for medical diagnosis using triangular fuzzy soft set and exhibited the technique with a hypothetical case study. Paper ID: Developing Stochastic Linear Programming Model to Optimize Agricultural Production under Uncertain Flood Influence Sayedul Anam Daffodil International University anam.ged@daffodilvarsity.edu.bd Mahbub Parvez Daffodil International University Md. Aminur Rahman Khan Md. Sharif Uddin Bangladesh is an agricultural country. But the contribution of agricultural sector in GDP in Bangladesh is decreasing last several years. Flood is one of the main important factors in Bangladesh that affects agricultural production each and every year. In this paper, we want to develop a stochastic linear programming model for optimizing the agricultural production considering flood as a stochastic variable. Other constraints are agricultural inputs such as land, labour, fertilizer, loan, seeds, pesticide, and irrigation that influence agricultural production. 5

24 Paper ID: Novel Triosmium Clusters Stabilized by Benzoxazol-2-thiolatoligand: Synthesis, X-ray Crystal Structure and Thermal Isomerization Shafikul Islam, Md. Julhas A. Miah, and Md. Manzurul Karim Department of Chemistry,, Savar, Dhaka-1342, Bangladesh Mohammad R. Karim, and Tasneem A. Siddiquee Department of Chemistry, Tennessee State University, Nashville, Tennessee, USA Treatment of the labile complex, [Os 3 (CO) 10 (NCMe) 2 ], with 2-mercaptobenzoxazole at ambient temperature and at 66 o C resulted in the isolation of new isomeric tri-osmium clusters, [Os 3 (CO) 10 (µ- H)(µ-SCNOC 6 H 4 )] (1A)and (1B) respectively as yellow crystals in high yield. On the other hand, heating 1A at 66 o C gave 1B exclusively. Compounds1A and 1B were formed by the displacement of MeCN ligand from [Os 3 (CO) 10 (NCMe) 2 ] followed by a facile S-H bond activation in 2- mercaptobenzoxazole ligand. Conversion of 1A to 1B involved a thermal ring expansion process together with hydride flipping. The complexes, 1A and 1B, were characterized by elemental analyses, IR and 1 H NMR spectroscopic method. Structure of the complexes was unambiguously determined by single crystal X-ray diffraction method. 1A 1B Paper ID: (3+1)-dimensional cylindrical Korteweg-de Vries equation for ion-acoustic waves Shalauddin Daffodil International University, Dhaka , Bangladesh A. Mannan, and A.A.Mamun Department of Physics,, Savar, Dhaka-1342, Bangladesh The nonlinear propagation of ion-acoustic waves (in which the inertia (restoring force) ismainly provided by the heavy negative ions) in a three-dimensional cylindrical, collisionless,and unmagnetized plasma whose constituents are ions and nonthermal electrons has been investigated. In ion-acoustic waves, the inertia (restoring force) is provided by the ions (nonthermal electrons). A (3+1)-dimensional cylindrical Korteweg-de Vries (ckdv) equation (also known as cylindrical Kadomtsev Petviashvili equation) is derived for small but finite amplitude ion-acoustic waves by employing the reductive perturbation method.the ion-acoustic solitary wave solution is found from the ckdv equation at certain condition. The effects of physical parameters on the solitary pulse structures are examined.our investigationmight be helpful to better understand the nonlinear 6

25 wavephenomena in laboratory plasma experiments with long-rangeinteractions and in interstellar and spatial plasmassuch as the supernova shells and Saturn s rings. Paper ID: Effect of Thickness Variation on Tin Oxide Based Transparent Conducting Oxide Layer Rimon Chandra Debnath, Md Kamal Hossain, and Mst. Shamima Khanom Department of Physics, rimon.debnath92@gmail.com Munira Sultana, Rummana Matin, and M. S. Bashar IFRD, Bangladesh Council of Scientific and Industrial Research (BCSIR) Farid Ahmed, and Md. Abul Hossain Department of Physics, Transparent conducting oxide (TCO) is one of the most important materials of modern electronic devices. Tin (IV) oxide (SnO 2) has some unique properties such as intrinsically n-type semiconductor, wide bandgap, transparent in visible region, high carrier concentration etc., which makes it worthy to use for TCO layer. Undoped tin oxide (SnO2) thin films with varying thicknesses were prepared by spray pyrolysis technique. Alcoholic (methanol) solution of Stannic chloride pentahydrate (SnCl4.5H2O) was used as the precursor. The thickness of the films was varied by repeating the spraying process several times. The prepared films were characterized by x-ray diffractometer (XRD), ultra-violet visible spectroscopy (UV-vis), four-probe measurement and Hall Effect measurement. The XRD pattern represents the tetragonal rutile structure of the prepared sample. The minimum grain size was 14.12nm for (110) plane and the maximum grain size was 32.61nm for (310) plane. The average crystal grain size of the prepared films was 24 nm. The electrical resistivity of the prepared films decreases with increasing the thickness and the lowest resistivity was found to be ohm-cm. The carrier concentration decreases with increasing the thickness of the films. The transmittance was more in the visible region than UV region. The optical band-gaps were almost same for all the prepared films and it was about 3.6 ev. All of the results indicate that the developed tin oxide thin film might be promising for use in optoelectronic application as transparent conducting oxide (TCO) layer. Paper ID: A semi-automated method for coastline extraction from satellite imagery: study from the coastal areas of Bangladesh Md. Mahfuzul Haque Department of Geological Sciences,, Savar, Dhaka, Bangladesh and mahfuz@juniv.edu Xuan Zhu School of Earth Atmosphere & Environment, Monash University, Melbourne, Australia The coastal environment represents the transition area between the land and the sea. Due to the interaction between the continental, marine and the atmospheric processes, this area is inherently dynamic and is subject to continuous transformations. The changing positions of the coastline are of elemental importance to coastal zone management. Considering the rate of global accelerated sea level rise and population density in coastal areas, changing coastline has become more than a topic of scientific curiosity and has profound impact on the coastal communities. Quantitative information about coastline position is fundamental for the calculating erosion rates, placing setback lines, redefining jurisdictional boundaries and identifying most hazard prone areas. Remote sensing technique effectively allows detection and measurements of the coastline changes. However the main 7

26 challenge of coastal remote sensing is centered on the extraction of coastline from satellite images. In this study, a semi-automated method has been used to extract the coastline from the coastal areas of Bangladesh using the infra-red bands of satellite imagery. To understand the influence of image resolution, coastline extracted from both medium and high resolution images are compared. Furthermore, to assess the coastal dynamics the nature of coastline movement are also calculated. The comparisons indicate that both the deltaic and non-deltaic coasts of Bangladesh are highly dynamic and considering the magnitude of erosion, immediate interventions area necessary in some erosion hotspots. Keywords: Remote sensing; Coastline extraction; Bangladesh coast Paper ID: Petrogenetic Characteristics of Detrital Fe-Ti Oxide Minerals of Brahmaputra River Sediments in Bangladesh A.S.M. Mehedi Hasan Institute of Mining, Mineralogy and Metallurgy (IMMM), BCSIR, Joypurhat-5900, Bangladesh Ismail Hossain Department of Geology and Mining, University of Rajshahi, Rajshahi-6205, Bangladesh Md. Aminur Rahman Institute of Mining, Mineralogy and Metallurgy (IMMM), BCSIR, Joypurhat-5900, Bangladesh The present research deals with the FEG-EPMA mapping and Fe-Ti oxide minerals chemistry of Brahmaputra river sediments in Bangladesh. Major heavy minerals in the sediments consist of garnet ( %), kyanite ( %), monazite ( %), sillimanite ( %), zircon ( %) and considerable amount of opaques mainly Fe-Ti oxide minerals ( %). The detrital Fe-Ti oxide minerals carry significant clues to the parent rocks or sources. In these contexts, detrital opaques (Fe-Ti oxides) have been analyzed with an electron probe micro-analyzer (EPMA). These opaques (Fe-Ti oxide) display six types of textural patterns, dominantly seriate with granular, emulsion, acicular, sandwich structures and trellis type of textural patterns. These textural patterns belong to five intergrowths of Fe-Ti oxide minerals such as (1) Ilmenite-hematite, (2) Magnetiteilmenite, (3) Hematite-Rutile, (4) Ilmenite-Hematite-Rutile and (5) Ilmenite-Rutile, where ilmenitehematite intergrowth is common. Alteration is seen in both exsolved and unexsolvedilmenites. Textural patterns and mineral chemistry of the studied ilmenite minerals provide evidences of low temperature magmatic inheritance, later modified by diffusional processes. The estimated temperature and oxygen fugacity from the magnetite-ilmeniteexsolution ranges from C to C and to respectively. The data are also consistent with hematite-ilmenite temperature (between 537 C and 540 C) and oxygen fugacity ( to ) measurements. These temperatures and oxygen fugacities specify Fe-Ti oxide assemblages equilibrated in a T-fo 2 field very near to the FMQ buffer curve suggesting a crustal source, which modified significantly by metamorphic processes. Keywords: Opaque minerals; ilmenite; exsolution; geothermometry; oxygen fugacity 8

27 Paper ID: Crystalline basement rocks from drillhole GDH-62 from Dighipara, Dinajpur, northwest Bangladesh: Petrologic and geochemical constraints Hasibul Zahan, Md. Sakawat Hossain, and Md. Sakaouth Hossain Department of Geological Sciences,, Dhaka, Bangladesh, and Md. Aminur Rahman Institute of Mining, Mineralogy, and Metallurgy (IMMM), BCSIR, Joypurhat, Bangladesh The crystalline basement rock of drillhole GDH-62 from Dighipara, Dinajpur District of northwest Bangladesh is encountered between the depths of 1633 to 1721 feet. The crystalline basement rocks from Dighipara comprises dominantly felsic rocks with a considerable portion of mafic hornblendite dykes. Felsic rocks are comprised of granodiorite, tonalite, and diorite, which were dissected by ~24 feet thick hornblendite dykes nearly at the bottom of the drillcore. The felsic rocks (granodiorite, tonalite, and diorite) exhibit leucocratic to mesocratic, hypidiomorphic, inequigranular, fine to medium grained interlocking texture constituting the primarily variable amount of plagioclase (33-50%), quartz (12-27%), biotite (6-28%), and K-feldspar (6-12%). Chlorite, muscovite, epidote, zircon, hematite, and opaque minerals are the main accessories. The amount of quartz, plagioclase and K-feldspar decreases and biotite increase from granodiorite, tonalite to diorite. Whereas, hornblendite shows mesocratic to melanocratic, hypidiomorphic, inequigranular, fine to medium grained interlocking texture. It is mostly comprised of hornblende (67-73%) with biotite, plagioclase, calcite, chlorite, hematite and opaque minerals. The boundary between hornblendite and overlying diorite reveals that a high-level late emplacement of mafic magma. The felsic rocks show a narrow range variation in oxide contents with high contents of SiO2 ( %), Al2O3 ( %), and Fe2O3t ( %), moderate contents of K2O ( %), and MgO ( %), and low contents of Na2O ( %). Moderate to close scatter trend of SiO2 versus major and trace elements Harker variation diagram suggests the felsic rocks derived from a low fractionated single source and ansyn-collisional and volcanic arc granitoid setting in an ocean-continental subduction zone. Paper ID: Deformation characteristics of the Chittagong Tripura Fold Belt - An insight from the geometrical analysis of folded structures Md. Sakawat Hossain, Md. Maksudul Islam, Oniza Islam, Md. Sharif Hossain Khan, and Khalil R. Chowdhury Department of Geological Sciences,, Dhaka-1342, Bangladesh sakawat@juniv.edu Orogenic fold belt with various distinctive geometric folded structures is developed along the collisional plate boundaries due to interaction of tectonic forces and rocks, and generally occur at all scales from thin section to mountain ranges. Visualization and structural analysis of the fold geometric features is important not only in deciphering the deformation characteristics, but also to evaluate the spatial tectonic deformation intensity as well as the related processes of fold belt development. In this regard, bedding attitude data of six folded structures of the Chittagong Tripura Fold Belt (CTFB) have been analyzed using Excel, Google Earth, and Stereonet. Spatially referenced attitude data acquired digitally are compiled in Excel spreadsheet and converted into Keyhole Markup Language (KML) file using Stereonet 9.5. This KML file is then imported in Google Earth for visualization of the structure in 3D. In addition, stereographic analysis of the attitude data is processed and analyzed for the quantitative interpretation of the fold geometric features. Analysis revealed distinct characteristics of the folded structures in the different part of the CTFB and reflect the 9

28 tectonic deformation intensity of the outer accretionary wedge within the Indo-Burmese collisional plate margin. Overall, the outcomes not only enhanced the understanding of the geometric feature and tectonic deformation intensity of the CTFB, but will also provide valuable insight on the folded structures of the other young orogenic belt in the similar collisional settings. Keywords: Chittagong-Tripura Fold Belt; fold geometric elements; 3D visualization; stereographic analysis; deformation intensity Paper ID: Petrology and Geochemistry of the Crystalline Basement rocks from Barapukuria Coal Basin, Dinajpur, Bangladesh Md. Shams Shahriar, S. M. Mahbubul Ameen, Md. Sakawat Hossain, and Md. Sakaouth Hossain Department of Geological Sciences, Savar, Dhaka-1342, Bangladesh Mohammad Nazim Zaman, and Md. Shah Alam Institute of Mining, Mineralogy and Metallurgy (IMMM), BCSIR, Joypurhat-5900, Bangladesh The Barapukuria coal basin lies within the basement in northwest Bangladesh. The basin is bounded by two major faults, N-S trending eastern boundary fault (EBF) and NNE-SSW trending intrabasinal fault, and an NNW-SSE trending minor fault. The study aims to reveal the character of the basement hosting the coal with an integrated study of petrography and whole-rock geochemistry for the first time. The basement in Barapukuria is overlain apart from coal by Permian and Tertiary siliciclastic rocks. The samples for the current work were collected from the drill holes GDH-38, 39, 40, 42 and 43 encountered at the depths of m, 288 m, m, m, and m respectively. Integrated petrographic and geochemical study classified the Barapukuria basement as tonalite, granodiorite, granite along with minor granodiorite gneiss, and a hornblendite dyke. The felsic plutonic rocks are leucocratic to mesocratic and display hypidiomorphic texture, and are composed mainly of quartz, plagioclase, K-feldspar, biotite, and amphibole. Minor phases are chlorite, calcite, zircon, epidoteopaques. The granodiorite gneiss shows same mineralogy as granodiorite, with a distinct fabric developed by preferred orientation of biotite and amphibole. The hornblendite is hypermelanic, hypidiomorphic and show interlocking texture. The dyke comprises hornblende and plagioclase with subordinate calcite and clay minerals. Some of the samples from drillcore GDH-38, 40, and 42 shows angular grain, fractured, perforated and pseudo-brecciated nature which are attributed to the deformation induced by faults in and around the Barapukuria basin. Geochemical study reveals that, the felsic rocks vary in SiO2 from %, MgO from %, CaO from %, Na2O from %, K2O from %. The TiO2, Al2O3, Fe2O3, P2O5, MnO vary within a narrow range of %, %, %, %, % respectively. These rocks show a high content of Ba and Sr averaging 1010 and 481 ppm respectively. The Co, Ni, Cr, contents are low averaging 16, 19, and 31ppm respectively. The major element Harker variation plot suggests a poor to moderate fractional crystallization in the felsic samples in the Barapukuria basement. From the AFM plot, most of the felsic samples fall in the calc-alkaline field. The P2O5 vs. SiO2, Rb/Zr vs. SiO2 and Zr vs. SiO2 plots of the felsic rocks show a typical I-type trend. Primitive Mantle-normalize incompatible trace element patterns show negative Nb and Ti anomalies suggesting a subduction zone signature. The tectonic discrimination diagrams of the studied felsic samples falls within the volcanic arc+syn-collisionalgranitoid field. The source melt for the felsic rocks of the Barapukuria basement may have generated in an ocean-continent subduction zone. The primary melt infiltrated into the crust caused further melting there causing low to moderate degree of fractionation. The hornblendite dyke is interpreted to have originated from a metasomatized sub-arc mantle wedge and was emplaced later along the fissure and weak zones within the felsic association. 10

29 Petrography and geochemical characteristics of the felsic rocks of the Barapukuria basement are compared with the nearby (~ 14 km west) much-studied Maddhaparagranitoid, which has a U-Pb age of ~ 1.7 Ga. In both areas, the basement constitutes tonalite, diorite, granite/monzogranite and display a calc-alkaline, metaluminous I-type character. Considering the proximity between Barapukuria and Maddhapara, the two areas appeared to have formed in the course of a same magmatic evolution and from a single source. The halfgraben nature of the Barapukuria basin suggests that it has undergone post-gondwana rifting after the formation of the basement, while Maddhapara formed the corresponding horst and remained unaffected by the deformation. While both the coal basins of eastern India (EI) and Barapukuria were formed as the result of post- Gondwana rifting, however, the petrography, origin, and ages are quite different in the coal basin basement of EI and Barapukuria. The basement rocks of Barapukuria are predominantly made of granite, granodiorite, tonalite, and hornblendite whereas the basements of EI coal basins are mainly composed of different types of metamorphic rocks. The basement rocks from the eastern Indian coal basins show both deformation and metamorphism where the Barapukuria coal basin basement shows weak to moderate deformation but almost no metamorphism. Paper ID: Reservoir Characterization using Well Logs and 2D Seismic Data of the Sangu Gas Field, Offshore Bangladesh Md. Upal Shahriar, Delwar Hossain, and Md. Sakawat Hossain Department of Geological Sciences,, Dhaka upals3@gmail.com The present integrated reservoir characterization has included the analysis of well logs of Sangu-1 and Sangu-5 wells and seven 2D seismic lines of the Sangu Gas Field. This field is situated in the Hatia Trough of the Bengal Basin. Techlog Wellbore Software Platform has been used to analyze the well log data, whereas Petrel (Shared Earth-Critical Insight) Software Platform was used for seismic data interpretation. Based on the analysis of Sangu-1 and Sangu-5 well logs and seismic to well tie, seven reservoirs have been identified as potential hydrocarbon bearing zones at different depth levels in the two wells and the seismic sections. Lithology of the area is shale, silty shale, sandy shale and sandstone dominated. The average total porosity of the reservoirs ranges from 13.0% to 25.1%. The average effective porosity ranges from 7.0 to 25.1%, but in most cases below 13%. The permeability is very low, mostly below 20mD, except for T2 reservoir where it is 51mD. The average gas saturation of the reservoirs is between 24.1% and 79.6%. Permeability is most sensitive to water saturation and porosity where it is negatively affected by water saturation and positively affected by porosity. Permeability and effective porosity have a linear relationship with the reservoir rocks in % cases. The structure is delineated to be a doubly plunging asymmetrical open fold anticline with a NNW-SSE trend. The identified lithostratigraphic and seismo-stratigraphic features have a similarity with those lithostrtigraphic and seismo-stratigraphic features of Surma Basin of the Bengal Foredeep. The total reserve of the gas field is estimated to be BCF of which BCF is recoverable. Before being shut down in October 2013, about 487 BCF gas was produced from the field. 11

30 Paper ID: Characterization of pores in the lower Cambrian organic rich shales from the mid-upper Yangtze Block, South China Rumana Yeasmin Department of Geological Sciences,, Savar, Dhaka-1342, Bangladesh and Daizhao Chen Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing , China The organic-rich sediments were widely deposited over the previous carbonate platform as well as deep basin of the Yangtze Block during Early Cambrian. In the mid-upper Yangtze region, they comprise the Niutitang, Jiumenchong and lower Bianmachong formations which are dominated by black shales, except the middle one which is characterized by interbedding of shale and limestone. The organic richness of these sediments offers a potential shale gas target. Therefore, the present research work sets out a preliminary investigation on pore characteristics of the Niutitang, Jiumenchong and Bianmachong formations in two sections (Bahuang outcrop and Daotuo ZK102 drill core) from northeast Guizhou and one section (Longbizui outcrop) in northwest Hunan, South China. This study is based on field observations, SEM study and geochemical analyses. Moreover, image analyses by JMicroVision software were performed to understand the pore system of these rocks. The study shows that pores in shales of these formations are dominantly nanometer in size, and most nanopores are associated with organic matter particles (i.e., OM pores). But the pores related to mineral grains such as interparticle and intraparticle pores are also common. However, the organic matters in these shales are highly overmature (all vitrinite reflectance values > 2%), which suggest that hydrocarbons have already been expelled from these organic matters. Therefore, numerous nanopores are found within remnant OMs, although there is no systematic increase in the size or number of organic pores with increasing thermal maturity. The SEM porosities of shales range from 0.21 to 12.40% and the SEM images support the critical importance of organic matter content on total porosities. The porosities related to organic matter show excellent, positive correlation with TOC contents. However, the porosity unrelated to organic matter such as inter- and intraparticle porosities are also appeared to have important contribution in total porosities, especially for outcrop shale samples in which gaseous petroleum might have been escaped away. So the petroleum storage potentiality in the subsurface organic-rich shales largely associated in pores within organic matters. Keywords: Yangtze Block; total organic carbon; organic matter pores; thermal maturity; Early Cambrian Paper ID: Energy: Global and National Perspective Edwin Bowles General Manager KrisEnergy Bangladesh Ltd. The talk will focus on the global energy consumption, growth rates over years and its transition towards cleaner energy sources. Different forms of renewable energy and the energy mix are playing significant role in shifting towards cleaner, lower carbon fuels, driven by environmental needs and technological advances. In recent years, per capita energy consumption of Bangladesh has increased congruently with the economic development. Bangladesh Government has now undertaken a fuel mix strategy and gradually exploring other alternatives to replace present gas-dependent energy system. Governments 2030 and 2040 forward plan shows that alternate fuels such as coal, nuclear energy, import-based gas/lng will be dominant source of energy. 12

31 Paper ID: The untapped chemistry of saccharin (sach) and thiosaccharin (s-sach) with M 3 (CO) 10 L 2 carbonyls (M = Os, Ru, L = dppm, MeCN)-synthesis, structure and reactivity Shariff E. Kabir Department of Chemistry,, Savar, Dhaka 1342, Bangladesh Trimetallic Osmium and Ruthenium dodecacarbonyls [M 3 CO) 12 ] and its derivatized related complexes [M 3 (CO) 10 (MeCN) 2 ] and [M 3 (CO) 10 (µ-dppm)] (M = Os, Ru) had been extensively used as precursors towards a variety of low-valent osmium and ruthenium trimetallic and in some cases polymetallic cluster complexes. The diversity lies within the triangular structural rigidity of the complex. Many of these clusters have found successful usage for homogeneous catalyst. When reacted with potential donor ligands, such clusters can undergo CO loss, M-M bond cleavage, or even ligand reorganization, resulting in Polynuclear clusters varying in nuclearities and ligand coordination mode. Saccharin (sac-h) has been widely used as artificial sweetener. This organic molecule along with its thio congener thiosaccharin (S-sacH) contain donor hetero atoms (O, S and N) which make them potential donor ligands. Unfortunately the related chemistry of sac-h has long been neglected and less explored. The chemistry between sac-h and S-sacH with trimetallic carbonyls led us to prepare a range of attractive trinuclear cluster complexes. The synthesis of cluster complexes from the reactions of [M 3 (CO) 10 (MeCN) 2 ] and [M 3 (CO) 10 (µ-dppm)] with sac-h and S-sacH ligands will be discussed. The cluster complexes were characterized using IR, 1 H NMR, 31 P NMR and x-ray crystallography. 13

32 Paper ID: Mathematics as a Foundation of Research in Various Disciplines Mohammad Abdul Hoque Department of Management, School of Business and Economics, North South University, Dhaka, Bangladesh Mathematics works as a foundation in various disciplines of research. Mathematics plays a vital role in minimizing cost or time or distance, and maximizing profit or any kind of benefit, with or without constraints. Various types of mathematical techniques are used in this optimization. When solution to a problem is either unavailable or available beyond the time limit, mathematics helps to develop a step by step technique known as the heuristic technique, to reach an expected feasible solution to that type of problem. Artificial Intelligence, Genetic Algorithm, Neural Network and Simulated Annealing are such types of techniques. Computer programs are developed following algorithms. The bases of these algorithms are mathematical logics. Computational time of a computer program in finding a solution to a problem is generally calculated by the number of operations used to reach to that particular solution. This number of operations is expressed by a mathematical function. The growth of a function is used to see whether this computational time increases enormously (NP-hard). Matrix games are used in carrying out research in a competitive situation for continual improvement of the overall situation. Mathematics helps to develop various kinds of strategies to make optimal decisions in these games. Traditionally, economics has been utilizing sophisticated applied mathematics in operations research. For instance, L V Kantorovich, T C Koopmans, John F Nash Jr., a renowned mathematicians received the Nobel Prize in economics for their contribution in Operations Research. Although simulation is sometimes viewed as a method of last resort, recent advances in simulation methodologies, software availability and technical development have made simulation one of the most widely used and accepted tools in system analysis and operations research. Thus mathematics helps to make important optimal decisions in various disciplines. The least square regression analysis is carried out in many areas of research in making appropriate decisions. This least square regression is the minimization of the sum of the squares of the errors of the data points for a dependent variable, with respect to the given data points for independent variable/variables. Thus mathematics had laid down the foundation for the regression analysis. Various statistical distributions and control charts are used in many research areas, all of which are developed based on mathematics. The importance of probabilistic methods in almost all areas of mathematics has been exploding. Using probability theories many basic problems can be modeled by treating them as discrete or continuous. Physics and chemistry are the traditional areas for applications of mathematics. Albert Einstein's general theory of relativity was established following the developed mathematical theories. Information exchanges between mathematicians and physicists led to substantial progresses in theoretical physics. Most of the progresses in pure mathematics were impelled by the newly faced problems in physics. The chemistry department of the Harvard University quoted, Chemistry has benefited more and more from mathematical developments and concepts. Notably, Herbert A. Hauptman, John A. Pople and Walter Kuhn - all three Nobel Laureates in Chemistry, originally had doctorates in mathematics. Mathematical models have also been emerging in the biological and medical sciences. Dynamical systems theory in mathematical biology has attracted a lot of attention of the researchers from many scientific directions. Finance has to deal with derivatives, stock options, risks and portfolio management. Recently, the supply chain management has emerged in various areas of management. Synchronization of flow in a supply chain is essential for optimal management of a system. All these are modeled mathematically and hence mathematicians are having a real impact on how those businesses are evolving. Much of science, engineering, technology, business and management has been building on computation and simulation, for which the mathematical sciences are the natural language. In addition, data-collection capabilities have been expanding enormously, and the mathematical sciences have been innately involved in distilling knowledge from all that data. When research in mathematical sciences produces a new way to compress or analyze data, value financial products, process a signal from a medical 14

33 device or military system, or solve the equations behind an engineering simulation, the benefit can be realized quickly. The process of simulation-based science and engineering is inherently very mathematical, demanding advances in mathematical structures that enable modeling; in algorithm development; in fundamental questions of computing; and in model validation, uncertainty quantification, analysis, and optimization. Theoretical physics or theoretical chemistry or theoretical computer science is indistinguishable from research done by mathematicians, and similar overlaps occur with theoretical ecology, mathematical biology, bioinformatics and an increasing number of fields. It is becoming more widespread as more fields are becoming amenable to mathematical representations. This explosion of opportunities means that much of twenty-first century research is going to be built on a mathematical science foundation, and that foundation must continue to evolve and expand for the benefits of mankind. To cope with this increasing demand, the mathematical sciences are best conceived as an interdisciplinary field, integrating mathematics, statistics and computation in the broadest sense, in areas of potential applications. In this study, mathematics as a foundation of research in various disciplines is explored, the concerned materials are highlighted and discussed to motivate its anticipated better applications, in order to open up more for other disciplines and to foster the line of inter-discipline research. Paper ID: Dust-Acoustic Shock Structures in a Self-Gravitating Dusty plasmas with Trapped Ions and Dust of Opposite Polarity Ismita Tasnim, M. G. M. Anowar, and S. Rawson Begum Rokeya University, Rangpur A A Mamun Department of Physics,, Savar, Dhaka A rigorous theoretical investigation has been performed on dust-acoustic (DA) solitary structures in a self-gravitating dusty plasma containing inertial dust of opposite polarity, trapped ions, and Boltzmann electrons. The Burgers equation and its solution are derived using reductive perturbation method. The basic features (viz., polarity, amplitude, width, and speed) of the DA shock waves (SWs) are studied analytically as well as numerically. It is observed that the combined effects of self gravitational field, trapped ions and dust of opposite polarity significantly modify the nature and basic properties of the DA SWs. The present investigation can be very effective for understanding and studying the nonlinear characteristics of the DA waves in different space dusty plasmas. Paper ID: Applications of Artificial Neural Network (ANN) & Support vector machines (SVMs) in Predicting Stock Market Returns: A case study on Dhaka Stock Exchange Md. Siddikur Rahman, and H.M. Simon Begum Rokeya University, Rangpur siddikurju@gmail.com Share Market is an untidy place for predicting since there are no significant rules to estimate or predict the price of share in the share market. Many methods like technical analysis, fundamental analysis, time series analysis and statistical analysis etc. are all used to attempt to predict the price in the share market but none of these methods are proved as a consistently acceptable prediction tool. Artificial Neural Network (ANN), a field of Artificial Intelligence (AI), is a popular way to identify unknown and hidden patterns in data which is suitable for share market prediction. Another machine 15

34 learning algorithm Support vector machines (SVMs) are promising methods for the prediction of - financial time series because they use a risk function consisting of the empirical error and a regularized term which is derived from the structural risk minimization principle. Paper presents first detailed study on data of Dhaka Stock Exchange (DSE) to predict the stock market volume of Dhaka Stock Exchange (DSE). In this study, we have applied and compared salient machine learning algorithms to predict stock exchange volume. The aim of this paper is to provide a review of the applications of ANN & SVM in stock market prediction in order to determine what can be done in the future. Paper ID: Synthesis of vanadium oxide nanoparticles by pulsed plasma in liquid method Jahirul Islam Khandaker, jikphy_ju@yahoo.com Zhazgul Kelgenbaeva Institute of Pulsed Power Science, Kumamoto University Dr. Michio Koinuma Graduate School of Science and Technology, Kumamoto University Akira Yoshiasa Faculty of Science, Kumamoto University Tsutomu Mashimo Institute of Pulsed Power Science, Kumamoto University Vanadium oxide (V-O) nanoparticles were synthesized in dielectric liquid water and characterized. X- ray diffraction refinement of the nanoparticles identified the orthorhombic V2O5 phase from water medium. Pure and fine V2O5 phase was produced from the water medium. X-ray photoelectron spectroscopy (XPS) identified the spin-orbit V2p peak splitting of 7.4 ev, and the symmetric in nature of all doublets, which confirmed the formation of V2O5 compounds. The high resolution TEM (HR- TEM) identified the average size of the nanoparticles derived from water of 5 nm. Field emission SEM (FE-SEM) identified densely distributed V2O5. The high yield of V2O5 nanoflowers were identified in water, where every flower consisting of beltlike petal structure with the average flower size of 10-20?m. Energy dispersive X-ray spectroscopy (EDX) illustrated the existence of oxygen with vanadium in atomic percentage (%) of 75. Moreover, the band gap of as-synthesized V2O5 nanoparticles were found to be 3.35 ev measured by spectroscopy by using Tauc relation. Paper ID: Dust-acoustic solitary waves and their multi-dimensional instabilities in dusty plasmas with dust of opposite polarity and trapped ions Ismita Tasnim, and M. G. M. Anowar Begum Rokeya University, Rangpur ismita.tasnim@yahoo.com M. M. Masud Bangladesh University of Engineering & Technology A A Mamun Department of Physics,, Savar, Dhaka The basic features of obliquely propagating dust-acoustic (DA) solitary waves, and their multidimensional instability in a magnetized dusty plasma containing charged dust of opposite polarity (negative and positive), Boltzmann electrons, and trapped (vortex-like) ions have been theoretically 16

35 investigated by the reductive perturbation method, and small-k perturbation expansion technique. The combined effects of external magnetic field (obliqueness), dust of opposite polarity, and trapped ions, which are found to significantly modify the basic properties (amplitude and width) of small but finiteamplitude DA solitary waves (DASWs), are explicitly examined. It is also found that the instability criterion and the growth rate are significantly modified by the external magnetic field and the propagation directions of both the nonlinear waves and their perturbation modes. The implications of our results in space plasmas are briefly discussed. Paper ID: Pre-monsoon Flash Flood Forecasting over Northeastern Haor Region of Bangladesh using NWP and CPT Md. Shameem Hassan Bhuiyan, Md. Abdul Mannan Chowdhury, and Dewan Abdul Quadir Pre-monsoon flash floods over northeastern haor region of Bangladesh are studied to develop forecast system by using Weather Research and Forecasting (WRF) model and Climate Prediction Tools (CPT). WRF model can provide more precise flash flood early warning in one week advance. Under this process WRF can provide seven days accumulative rainfall forecast precisely. With the help of WRF model, hindcast validation applied for the years 2004 and 2010 flash flood events using NCEP FNL data and flash flood event of 2016 forecasted using Global Forecast System (GFS) model data. Climate Predictability Tool (CPT), a statistical model used to predict the teleconnection between premonsoon flash flood producing heavy rainfall (Predictant) over Meghalaya basin and different meteorological parameters (Predictors). Total eight predictors has been used to identify the correlation with rainfall over Haor basin as predictant. It has been found that two predictors, out of eight have statistically significant strong correlation with rainfall over selected domain (Barak basin). The correlation has been found 0.81 with geopotential height of 500 hpa levels and it is used as predictor and the correlation has also been found 0.75 in case of geopotential height of 200 hpa level. With the help of this teleconnection, CPT used to develop a Long Range Forecast (LRF) of flash flood early warning system in one month ahead over Northeastern Haor region of Bangladesh. Keywords: Weather Research and Forecasting (WRF); Climate Predictability Tool (CPT); NCEP FNL data; Global Forecast System (GFS) model data; geopotential height Paper ID: Positron-Acoustic Solitary Structures in Plasmas with Nonextensive q-distributed Electrons and Positrons Lutfun Nahar United International University, Dhaka l.nahar@ins.uiu.ac.bd A. A. Mamun Department of Physics,, Savar, Dhaka Positron-acoustic (PA) solitary waves (SWs) in plasmas consisting of immobile positive ions, mobile cold positrons, and nonextensive q-distributed hot positrons and electrons are studied. By employing the reductive perturbation technique the Korteweg de Vries (K-dV) equation is derived. The phase speed, amplitude, width, and polarity of the PA SWs are examined. It is obtained that the electron and positron nonextensivity effects play a notable role on the fundamental characteristics of PA SWs. The relative strength between nonlinearity and dispersion is also observed. We hope that our present 17

36 observation will be helpful for understanding various space as well as laboratory plasma environments. Paper ID: Dust-Ion-Acoustic Solitary and Shock Waves in Arbitrarily Charged Dusty Plasmas with Two- Temperature Superthermal Electrons Md Sahadat Alam, L. Nahar, and A. A. Mamun Department of Physics,, Savar, Dhaka A theoretical investigation is made on the dust-ion-acoustic (DIA) solitary and shock waves in an unmagnetized dusty plasma system consisting of inertial ions, superthermal electrons (following kappa distribution) with two distinct temperatures, and arbitrarily charged static dust grains. The wellknown Korteweg-de-Vries (KdV) and Burgers equations are derived by using the reductive perturbation method. The basic features (phase speed, amplitude, width, polarity, etc.) of DIA solitary and shock waves are examined. The relative strength among dispersion, nonlinearity and dissipative coefficients is also discussed. It is found that two distinct temperatures superthermal electrons and arbitrarily charged dust play significant role on modifying the basic features of DIA solitary and shock structures. The findings of our present investigation in some space and laboratory dusty plasma environments are briefly discussed. Paper ID: Implementation of an Arduino based low cost secured Telemedicine system for Bangladesh Toufik Emon Daffodil International University Uzzal Kumar Prodhan, Muhammad Zahidur Rahman, and Israt Jahan Computer Science & Engineering Department, Telemedicine-based healthcare service faces different difficulties especially in the remote people of Bangladesh. In this paper, we have implemented a secured Telemedicine model. The objective of the research is to implement an advanced secure telemedicine model in order to provide the health care services for the rural people of Bangladesh without any security breaches.to secure Telemedicine system we follow the recommendation of Health Level Seven (HL7) as well as Health Insurance Portability and Accountability Act (HIPPA). Our developed model includes Arduino, sensor shield, mobile application, web application as well as a health system. Therefore, we have implemented the various security measures in different sections to make Telemedicine system secure. This security framework ensures authentication, authorization, secure connection between module as well as secure data communication. The exclusively registered user can use this Telemedicine system. Authentication required to secure the Bluetooth connection between the sensor and mobile application. In our system, web server is secured using SSL as well as data is encrypted throughout transmission, secures the integrity of the healthcare data. These security frameworks remove any kind of data breaches and ensure confidentiality. The results of these research show that our developed security framework makes the Telemedicine system more secure and effective telemedicine services for the rural people of Bangladesh. 18

37 Paper ID: Semi-analytical ring-soliton solution of cylindrical Korteweg de Vries equation Abdul Mannan Renato Fedele Dipartimento di Fisica, Universit`a di Napoli Federico II Sergio De Nicola SPIN-CNR, ComplessoUniversitario di M.S. Angelo In many nonlinear systems, the interplay between the nonlinearity and dispersion leads to the formation of a very robust coherent and localized structures, the solitons. In cylindrical symmetry, the theory of the large amplitude waves predicts the existence of nonlinear ring waves, whose spatiotemporal evolution is governed by the concentric (or cylindrical) Korteweg-de Vries (ckdv) equation. Here, we present the approximate semi-analytical ring-soliton solution of ckdv equation with standard boundary conditions. The ckdv equation describes the propagation of weakly nonlinear and weakly dispersive ring waves in an incompressible, inviscid, and irrotational fluid. It is found that the semi-analytical ring-soliton travels with time-varying amplitude and width, and phase which is linearly dependent on space and time coordinates. It is also seen that there is a good agreement between numerical and semi-analytical solutions. Paper ID: DIA Waves in Dusty Plasmas with bi-maxwellian Electrons Md. Mehdi Masud Bangladesh University of Engineering and Technology (BUET) msakib@phy.buet.ac.bd A. A. Mamun Department of Physics, The nonlinear propagation characteristics of dust-ion-acoustic (DIA) waves in dusty plasmas with bi- Maxwellian electrons, namely, lower and higher temperature electrons (composed of negatively charged stationary dust, inertial ions, and non-inertial two-temperature-electrons) were studied using the reductive perturbation technique. KdV, mkdv and Gardner equations (both standard and modified ones) were derived to investigate the basic features of planar and nonplanar DIA solitary waves [1-2]. Burgers equations (both standard and modified ones) were also employed to analyze the properties of planar [3] and nonplanar DIA shock waves. The effects of magnetic field on the DIA solitary structures were also discussed by analyzing the Zakharov-Kuznetsov equation [4]. The present investigation may play important role in understanding the localized electrostatic disturbances in space and laboratory dusty plasmas. References: 1. M. M. Masud, M. Asaduzzaman, and A. A. Mamun, Phys. Plasmas, 19, (2012). 2. M. M. Masud, M. Asaduzzaman, and A. A. Mamun, Astrophys. Space Sci., 343, 221 (2013). 3. M. M. Masud, M. Asaduzzaman, and A. A. Mamun, J. Plasma Phys., 79(2), 215 (2013). 4. M. M. Masud, N. R. Kundu, and A. A. Mamun, Can. J. Phys., 91, 530 (2013). 19

38 Paper ID: Structural and Magnetic Properties of Gd and Cr co-doped BiFeO3 Nanomaterials Mohammad Nazmul Hossain, M. A. Matin, M. A. Hakim, Manifa Noor, and M. A. Al Mamun Bangladesh University of Engineering and Technology (BUET) M.M. Rhaman Ahsanullah University of Science and Technology (AUST) F. A. Mozahid, and M.F. Islam Bangladesh University of Engineering and Technology (BUET) In this study, Gd and Cr co-doped BiFeO3 multiferroic nano-ceramics were synthesized using sol-gel method to investigate their structural and magnetic properties. Composition of Bi0.95Gd0.05Fe1 xcrxo3 (x = 0, 0.02, 0.04, 0.06 and 0.08) was prepared from bismuth nitrate pentahydrate, Iron Nitrate nona hydrate, gadolinium nitrate hexa hydrate and chromium nitrate nona hydrate with appropriate calculated stoichiometry. Citric acid (C6 H8O7) as chelating agent was used as raw materials and the deionized water was used as solvents. Obtained nano-ceramics were annealed at various temperatures between C following single-stage sintering. The investigated properties were compared between undoped and Gd-Cr doped BiFeO3 nanoparticles. The X-ray diffraction (XRD) patterns revealed that the doping of Gd in the place of Bi and Cr in place of Fe in BiFeO3 induces a tendency of phase transition from rhombohedral (R3c) to orthorhombic (pna21). The field emission scanning electron microscopy images demonstrated that due to the substitution of Gd and Cr, the average particle size was found vary from 25 to 200 nm depending on doping concentration. Vibrating sample magnetometer (VSM) results confirmed improved ferromagnetic properties of synthesized materials. A substantial enhancement of magnetization of 6 emu/gm was obtained for 5% Gd and 6% Cr doped multiferroic. Paper ID: Markovian Decision Process Analysis on Traffic Congestion at Dhaka City Md. Abdur Rahman, and Md. Abdul Hoque marahmanju@juniv.edu Although decentralization can promote good governance for achieving effective and socially beneficial planning, it cannot be achieved in Bangladesh for lack of proper coordination. So, most of the various kinds of important offices have been serving public from Dhaka. Thus a lot people have been moving around Dhaka for their official works. Besides, people have the tendency to stay in Dhaka for enjoying various kinds of better facilities exist here in education, healthcare, employment, business, shopping, etc. As a result, Dhaka has huge population now and hence a lot of transports have been prevailing here for transporting the public. Most of the residents of Dhaka has to spend a lot of their valuable time in traffic jam, created by various kinds of factors such as huge number of vehicles, illegal driving, illegal pedestrians crossing over roads, illegal loading and unloading beside roads, unplanned bus stops, narrow roads, etc. So, transportation planning is essential to get rid of this traffic jam and hence for the comfortable life of the residents of this city. Reduction of traffic jam is a great challenge now. As we have not the opportunity of developing alternative transportation system within a short time, there is a dire necessity of carrying out research on the current transportation system in order to get rid of this traffic jam. Whatever may be factors for traffic congestion, we need to find them out. Also, we are badly in need of carrying out research on how to improve this transportation situation in Dhaka city. Here we discuss the parties/factors that are responsible for traffic congestion and suggest for improvement in the city transportation networks. Then we carry out Markov Chain Decision Analysis on this problem to increase the flow of vehicles so that congestion is 20

39 reduced. It aims to observe the different issues-making scenario and its effect on the urban environment as well as to examine our markov chain decisions to reduce the traffic congestion. Paper ID: Fitting Zero-Inflated Poission (ZIP) Model for Torrential Rainfall Data Azizur Rahman, Prashanjit Chandra Paul, and Piash Paul Mariam Akter United International University, Dhaka Torrential rainfall has been widely considered as a starting point towards the apprehension of climate changes courses, constituting one of the most substantial components of the hydrologic cycle. The aim of this work is to investigate the temporal distribution of torrential rainfall of Dhaka City. In this study we consider the number of torrential rainfall occurrences during a month as count data. To capture addition or fewer zeros effect in data set, we apply two model namely: Poisson (POI) model and Zero-Inflated Poisson (ZIP) model. Empirical result shows that, ZIP model performs better in terms of goodness of fit (GOF) than POI model for our data series. Paper ID: Application of Probability Distributions for Wind Speed Modeling Md. Moyazzem Hossain hossainmm@juniv.edu Wind speed is the most significant parameter of the wind energy. However, the probability density functions (pdfs) are usually used to describe the characteristics of wind speed. So, the accurate determination of probability distribution of wind speed is very important in estimating wind speed energy potential over a region. In literature, several pdfs has been investigated to justify the suitability of modeling the wind speed in different regions all over the world. Therefore, the choice of the pdf is very crucial. This paper, firstly find the estimates of the parameters of all probability distribution considered in this study to describe wind speed characteristics by using the maximum likelihood method and iterations were carried out with Newton-Raphson technique. Finally, the appropriate pdf for monthly maximum sustained wind speed at Cox s Bazar in Bangladesh is selected with the help of the Kolmogorov Smirnov statistic, the coefficient of determination, the Chi-square statistic, Root mean square error (RMSE), AIC and BIC. Results indicate that, among the distributions considered in this study, the Skewed t (ST) distribution provide generally the best fit to the wind speed data. 21

40 Paper ID: Performance Analysis of Various Statistical Classification Techniques Using Different Data Mining Tools for Data Classification Md. Siddikur Rahman, and Md. Mamunur Rashid Begum Rokeya University, Rangpur This paper put a light on large-scale empirical comparison in the context of classifying three species of Iris flower data set (Iris setosa, Iris virginica and Iris versicolor) using six supervised learning algorithms Linear Discriminant Analysis (LDA), Naïve Bayes, Classification And Regression Trees (CART), k-nearest neighbor (KNN), Support Vector Machines (SVMs) and Random forests. Comparison is made on skills of sensitivity, specificity, Pos Pred Value, Neg Pred Value, Detection Rate, Detection Prevalence and Balanced Accuracy using true positive and false positive in confusion matrix generated by the respective algorithms. Also, we can use the correct and incorrect instances that give us a most efficient method for classification by using the confusion matrix. The efficiency of various data mining techniques on Irish flower dataset was analyzed and compared using model accuracy and KAPPA, K-fold validation, 5-fold validation, bootstrap and Leave One Out Cross Validation. The results in the paper on classification of three species of Irish flower data show that the efficiency and accuracy of LDA is better than other classification algorithms. Paper ID: Growth and Instability in Area and Production of Rape and Mustard oil seed in Bangladesh M. Taj Uddin Shahjalal University of Science and Technology, Sylhet Ruhul Amin Under graduate student, Department of Statistics Rape and Mustard Oil seed is one of the most important sources of vegetable oil. It plays a vital role in agricultural sectors of Bangladesh. However, the production of oilseed cannot meet up its annual demand of Bangladesh. The objective of this study was to measure the change and instability of Rape and Mustard oil seeds in Bangladesh in the context of area, production, and yields. Data were extracted from the statistical year books of Bangladesh Bureau of Statistics (BBS) and the study period was 1992 to Dispersion, regression analysis and correlation have been used to perform the analysis. Our analysis revealed that the yield of Rape and Mustard oil seeds were increased sharply though the cultivable areas were decreased. The growth rate in production and yield of Rape and Mustard oil seeds were satisfactory over the study period although they were not stable. Therefore, researchers, policy makers and farmers should give proper attention to develop technology to increase the production of Rape and Mustard oil seeds that ensure the food security in Bangladesh. Paper ID: Pattern Recognition of Rainfall in Bangladesh Using Wavelet Transform Abdur Rahman, Ataul Mustufa Anik, and Zaki Farhana airdipu@gmail.com This study explores the regional variation of changing patterns of rainfall in Bangladesh. The analysis consists of five regions of Bangladesh as Dhaka, Cox s Bazar, Rajshahi, Bogra and Sylhet on the 22

41 rainfall variation. The duration of the study period was chosen as for Dhaka, for Cox s Bazar, for Rajshahi, for Bogra and for Sylhet. The findings of the wavelet analysis reveal that, significant decrease of rainfall has been found in Rajshahi among the study region. It also explores the annual periodicity of rainfall for all the study regions along with a special 6-month periodicity in the Cox s Bazar. In addition, this analysis also explores a dominating 3-4-year cycle of rainfall in all the study regions. Besides the climate change in Cox s Bazar and Sylhet are pretty much alarming. Paper ID: Application of Support Vector Machine in Stock Market Forecasting Comparing with the ANN and ARIMA Models Faruq Abdulla, Md. Moyazzem Hossian, and Sharmin Akter Sumy faruqiustat09mnil@gmail.com In the domain of stock market, modeling and forecasting the closing prices very sophisticated because of their promiscuous, complexity, irregularity, more dynamical and non-stationary as a day of rest, long-weekend, political violence etc. However, in modern times, many assorted machine learning algorithms dramatically play a vital role in forecasting any sorts of non-standard situations. Recently, the Support Vector Machines (SVMs) pervaded its central domain pattern recognition to the regression analysis as a novel forecasting technique. This paper dispensed the SVM to the closing price of Beximco Pharmaceuticals Limited in DSE for forecasting future terms and comparing the forecasting performance with the ANN model and ARIMA model. It is manifested from the experimental results that the SVM provides a massive accurate forecasting performance. Therefore, this paper suggests using SVM model for forecasting purpose of the stocks in a stock market which will be helpful for policymakers. Paper ID: Elderly Health Status in Bangladesh: A Cross Sectional Study Abdur Rahman, Mohammad Romel Bhuia, and Kanis Fatama Ferdushi Shahjalal University of Science and Technology airdipu@gmail.com This study was structured to investigate the health condition, depression and activities of daily living of elderly men and woman in Sylhet region of Bangladesh. This study considered 128 elderly peoples aged ranges from 60 to 60+ face to face personal interviews through questionnaires during March to September Among them 53.9 percent is male and 46.1 percent is female. The data were collected using cluster sampling, dividing the population into four clusters such as urban area, rural area, tea garden area and ethnic area. We have done a cross sectional methods to analyze the data and performed chi-square test to test the hypothesis. There was a significance differences of the variables between elderly men and women. We have found the significant relationship among the variables in elderly men however there is no significant relationship among the variables in elderly women. Total 62.5 percent elder are suffering in depression among them 32.8 percent are male and 29.7 percent are female. Overall 39.1 percent of married and 23.4 percent widowed/widower are suffering in depression which indicates that male are suffering in depression then female and married elder then widowed. Finally, these study gives a recommendation of proper health care program for elderly men and women in Bangladesh. 23

42 Paper ID: A study on prediction of rainfall using data mining techniques: An evidence of Chittagong district Nahida Afroz and Muhammad Mahabub Rahaman manik Department of Statistics, Comilla University, Comilla-3506, Bangladesh n.afroz@cou.ac.bd In the last era around the world weather prediction has been one of the most scientifically and technologically challenging problems. Statistical techniques for rainfall prediction cannot perform well for long-term rainfall forecasting due to the dynamic nature of climate phenomena. Data mining techniques like Decision Tree (ID3), C4.5, C5, Multilayer Perception, K-nearest neighborhood (K- NN), Naïve Bayes, Support Vector Machine(SVM),Classification and Regression Trees (CART), Artificial Neural Network (ANN), Fuzzy logic, etc. has become very popular and most widely used techniques for rainfall forecasting. In this study C5, Naïve Bayes and Support Vector Machine (SVM) algorithm have been used for classification and predicting daily rainfall status. Confusion matrix is also used in this study to calculate different accuracy measures, errors and precision to compare among the techniques. From the result we find that the performance of C5 decision tree algorithm and Support Vector Machine are better than that of Naïve Bayes algorithm considering the accuracy and it is also observed that C5 and SVM gives more or less same accuracy. But on the basis of the value of Kappa statistics, we find that C5 algorithm perform better than Support Vector Machine. Different measurement error such as, mean absolute error and root mean squared error are also calculated to compare these techniques. Relating the error measurement we can conclude that C5 algorithm gives better result than others two techniques. Keywords: Data mining; Classification; Prediction; Confusion Matrix; C5; Naïve Bayes; Support Vector Machine Paper ID: Modified BEKK Model and its Application to Selected Financial Time Series of Bangladesh Lakshmi Rani Kundu IQAC, lakshmikundu39@gmail.com Ajit Kumar Majumder Department of Statistics, Multivariate GARCH model are frequently used in the analysis of dynamic covariance structure of financial time series. BEKK model (named after Baba, Engle, Kraft, and Kroner, 1990) is the extension of GARCH model. In some situations, sign of parameter are known in advance. For example, variance, growth rate etc. cannot be negative. In such cases, usual unrestricted estimate are not appropriate. In this paper we propose constraint based optimization technique to estimate parameters of BEKK model to capture the sign or restriction on sign problems. We consider three financial time series Export, Import and Exchange rate of Bangladesh and observe that our proposed restricted likelihood method performs better than the usual likelihood method for the selected series. 24

43 Paper ID: Applications of Artificial Neural Network (ANN) & Support vector machines (SVMs) in Predicting Stock Market Returns: A case study on Dhaka Stock Exchange Md. Siddikur Rahman, and H.M. Simon Department of Statistics, Begum Rokeya University, Rangpur, Bangladesh siddikurju@gmail.com Share Market is an untidy place for predicting since there are no significant rules to estimate or predict the price of share in the share market. Many methods like technical analysis, fundamental analysis, time series analysis and statistical analysis etc. are all used to attempt to predict the price in the share market but none of these methods are proved as a consistently acceptable prediction tool. Artificial Neural Network (ANN), a field of Artificial Intelligence (AI), is a popular way to identify unknown and hidden patterns in data which is suitable for share market prediction. Another machine learning algorithm Support vector machines (SVMs) are promising methods for the prediction of - financial time series because they use a risk function consisting of the empirical error and a regularized term which is derived from the structural risk minimization principle. Paper presents first detailed study on data of Dhaka Stock Exchange (DSE) to predict the stock market volume of Dhaka Stock Exchange (DSE). In this study, we have applied and compared salient machine learning algorithms to predict stock exchange volume. The aim of this paper is to provide a review of the applications of ANN & SVM in stock market prediction in order to determine what can be done in the future. Paper ID: Identifying the Key Determinants of Women Empowerment: A Perception Survey on Academicians in Tertiary Education Most. Tajmary Mahfuz, Mr. Rafi Al Mahmud, and Ms. Subhenur Latif tajmary.ged@daffodilvarsity.edu.bd The purpose of this research work is to figure out the key determinants of women empowerment from the perspective of key persons in academia. The first phase of the study deals with secondary data to clarify the multi-faceted aspects of women empowerment. The second phase intends to identify the most crucial determinants of women empowerment and find out the nature & degree of casual relationship and interlinkages among the prioritized key determinants. To accomplish the second phase, primary data is collected using a perception survey questionnaire conducted in an academic institution where policy makers had participated. For qualitative data, semi-structured interviews were also conducted so that respondents can provide an in-depth explanation regarding their perception. The implication of present analysis unearths education as the prime determinant for women empowerment which not only triggers & facilitates other determinants but also unlocks the latent potentials of social, political, cultural and economic empowerment of women in a true sense. Keywords: women empowerment; perception; determinants; education; academia 25

44 Paper ID: Neural Based Seasonal Adjustment in Time Series: A Comparative Study M. Atikur Rahman Department of Statistics, Jagannath University, Dhaka-1100, Bangladesh, atikstat616@gmail.com Ajit K. Majumder Department of Statistics,, Savar, Dhaka-1342, Bangladesh Ignorance of seasonal adjustment usually distorts the behaviour of time series analysis. On the other hand, seasonally adjusted data provide more interpretable measures of changes in a given period of time. In this paper, an attempt has been made to implement seasonal autoregressive integrated moving average (SARIMA), filter, non-filter and X-based seasonal adjustment methods for removing the seasonality in the time series data. We investigate the non-linear Neural Network approach using back propagation algorithm which is widely used as a promising method for analyzing time series data in the presence of seasonality. Neural Network approach is performed by selecting the appropriate number of hidden layers and dividing the data into training and test set to measure the different forecasting accuracy. It is observed that the Neural Network non-linear method performs well and produces more accurate results compared to the other seasonal adjustment methods in time series data. Keywords: SARIMA; Filter and non-filter based methods; X-based method; Neural Network Paper ID: Optimal control of a Threatened Wildebeest-Tiger the prey-predator System in Sundarban Ecosystem Nazmul Hasan Govt. M M college, Jessore nazmulmaths@gmail.com Md. Hyder Ali Biswas Khulna University Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka-1342 The threats to wildebeest are poaching and recurrent coastal flooding, cyclone and diseases while to wildebeest are retaliatory killing. The system is found in the mangrove forest Sundarban ecosystem. Optimal control theory is applied to investigate optimal strategies for controlling the threats in the system where anti-poaching patrols are used for poaching, construction of strong bomas for retaliatory killing, Strong construction of green fence for coastal flood and cyclone control and vaccination for diseases control. The possible impact of using combination of the three controls on the threats facing. The system is also examined that the best result is achieved. 26

45 Paper ID: Optimal Control of Greenhouse Horticulture Shohel Ahmed, and Adul Alim Department of Mathematics, Bangladesh University of Engineering and Technology (BUET) With the advancement of more and more sophisticated greenhouses all over the world, optimal control of greenhouse horticulture has become imperative. This paper shows how mathematical methods can be implemented to formulate guidelines for several processes that characterized the control of greenhouse climate, such as crop growth and greenhouse climate change. The development of the crop occurs on a time scale of weeks or months, whereas most of the greenhouse climate changes on a daily basis. First, a simple mathematical model for the greenhouse system is presented including its equipment, the crop, and also the heat input from the greenhouse heating system as control variable. Next, it is based on a mathematical cost function that is either maximized or minimized. In our case the cost function is profit, which must be maximized. The profit equals the money obtained from selling the crops minus the costs required for maintaining a favorable greenhouse climate. The Pontryagin s maximum principle is used to characterize the optimal controls. The optimality system is derived and solved numerically using an iterative method with a Runge-Kutta fourth order scheme. Paper ID: Mapping of landslide prone area and its specific causes: a case study of Darjeeling, West Bengal Javed Ikbal, and Syed Ahmad Ali Aligarh Muslim University javedikbal@outlook.com Landslide is one of the most vulnerable disaster in the mountain region like Himalaya. From the last five decades, landslide becomes active every year in the time of monsoon in and around Darjeeling. Places of landslides occurred during 2014 to 2016 has been marked using Google earth image. Slope map and elevation map was created by SRTM (30m) data under GIS environment. Seismic record confirms that the area is tectonically active and numerous faults, fractures, joints developed due to Indian plate subducted under Eurasian plate which made the area geologically fragile. High slope, high drainage density and heavy rainfall make the region prone to landslide. Anthropogenic activity such as urbanization, deforestation, improper solid waste treatment makes the slope unstable. Paper ID: Study of an eco-epidemiological system with Holling type-ii functional response Harekrishna Das The University of Burdwan, West Bengal, India hkdasm74@gmail.com The present paper deals with a study of an eco-epidemic system with Holling type II functional response. Stability analysis together with persistence of the system has been investigated near biologically feasible equilibria. Hopf bifurcation around the unique coexistence equilibrium of the system has been proved. The theoretical findings of this study are substantially validated by enough numerical simulations. 27

46 Paper ID: Cost Effective Treatment of Tannery Waste Water Mohammad Nazmul Hossain, Anamika Roy, and M. A. Matin Bangladesh University of Engineering and Technology (BUET) Ashiqur Rahman Institute of Leather Engineering and Technology, University of Dhaka Didarul Islam Department of Applied Chemistry and Chemical Engineering, University of Dhaka M.F. Islam Bangladesh University of Engineering and Technology (BUET) Tannery industries are producing millions of tons of waste water and are major source of water pollution. In this research work tannery effluents have been characterized and found to contain very high biological oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solid (TDS), turbidity and conductivity. The aim of this research is to treat tannery effluent in different way. In this study we coagulated liming waste water with dyeing waste water at a different proportion. Various tannery effluent water were used to identify the effectiveness of the research. The maximum removal of biological oxygen demand BOD, chemical oxygen demand COD, dissolved solid TDS, turbidity and conductivity were found to be 72.16, 87.60, and respectively. These result were found to be effective in treating tannery effluent. Hence it was proven that tannery effluents can be successive used for the treatment of tannery effluent. Paper ID: Optimal Control of Waste Water Cleaning Process Shohel Ahmed Department of Mathematics, Bangladesh University of Engineering and Technology (BUET) shohel2443@math.buet.ac.bd Sumaiya Rahman University of Dhaka To investigate waste water cleaning process a model is described by a nonlinear system of two differential equations with one bounded control. An optimal control problem of minimizing concentration of the polluted water at the terminal time T is stated and solved analytically with the use of the Pontryagin Maximum Principle. Dependence of the optimal solution on the initial conditions is established. Numerical simulations of a model of an industrial waste water cleaning process show the advantage of using our optimal strategy. Paper ID: Evaluation of chromium uptake efficiency using Spirulina platensis Geiter and Chlorella vulgaris Beijerinck in tannery industrial wastewater Riduanul Islam Talukder Shashi, A. K. M. Rashidul Alam, John Liton Munshi, and Chapol Kumar Roy The experiment was conducted to evaluate chromium uptake efficiency by Spirulina plantensis Geiter and Chlorella vulgaris Beijerinck and to assess the effects of tannery industrial wastewater on the growth of S. plantensis and C. vulgaris. Algal batch cultures were conducted with different concentrations of tannery industrial wastewater (100%, 75%, 50% and 25%) with three replications of 28

47 each for the duration of 15 days. The algal nutrient cultures with known concentration of chromium (1ppm, 2ppm, 3ppm, 4ppm and 5ppm) were prepared to compare the uptake rate and effects of growth on test species. In the cultures using wastewater, the chromium uptake rate of S. plantensis and C. vulgaris was 80.27% and 87.87%, respectively whereas the chromium uptake rate was 98.84% and 98.34%, respectively for nutrient cultures. In the cultures using wastewater, the growth rate of S. plantensis and C. vulgaris was % and %, respectively whereas the chromium uptake rate was % and %, respectively for nutrient cultures. The mean (±S.E.M) values of chromium uptake efficiency by S. plantensis and C. vulgaris in wastewater cultures was (±0.049) ppm and (±0.029) ppm, respectively whereas chromium uptake efficiency by S. plantensis and C. vulgaris in nutrient cultures was (±1.58) ppm and (±1.57) ppm, respectively. The cultures using wastewater, the mean (± S.E.M) values for the growth of S. plantensis and C. vulgaris was (±0.084) mg/l and (±0.91) mg/l, respectively whereas the growth of S. plantensis and C. vulgaris in nutrient cultures was (±0.079) mg/l and (±0.104) mg/l, respectively. In nutrient cultures, the growth of two algal test species was significantly different. The implications of these findings can be used in monitoring and remediation of chromium from other industrial discharges. Paper ID: Strategies and barriers towards climate change: Challenges in agricultural sector in Bangladesh Kanis Fatama Ferdushi, Md. Samiul Islam, and Abdur Rahman Shahjalal University of Science and Technology This paper explores farmer s perceptions of climate change vulnerability as well as the effects of socio-economic factors adaptation barriers on climate change adaptation practices in the Bangladesh agricultural sector. The data has been collected through a structured questionnaire in Sunamgjanj district at Darmapasha upazila. A total 378 respondent were interviewed. A multiple regression analysis was performed and the severity index (SI) was estimated to measure vulnerability context. The results revealed that limited access to agricultural extension, lack of credit facilities have significant impacts on adaptation practices. Paper ID: Quantitative Approaches in the Field of Geosciences Md. Sakawat Hossain, S.M. Mahbubul Ameen, and Rumana Yeasmin Department of Geological Sciences, sakawat@juniv.edu Nowadays, academic and professional geoscientists are using numbers, equations, and models in conjunction with field observations, maps and words as fundamental tools for investigating Earth processes in a highly quantitative manner. These new approaches have changed our traditional attitudes of viewing geosciences as mainly qualitative previously rather than quantitative at present. Quantitative approach to the geoscience prepares us to understand diverse topics such as geodynamics and plate tectonics, active tectonics and geomorphology, climate change and sea-level rise, and much more. However, here we focus only to the rock structures and textures. Fractures, faults and joints can occur in any material and at all scales. Generally, they form complex patterns, i.e. are statistically selfsimilar over a certain range of scale ('fractal'). Such patterns cannot be analysed by conventional methods but are suitable for application of fractal-geometry techniques. Fragmentation patterns, i.e. the purely geometric aspects of fractures and fragments, bear most information, pattern analysis 29

48 represents the 'core' of investigation of fractured matter and fracture-forming processes. Fragmentation patterns are generally different (i) in different directions (anisotropy), (ii) in different areas (inhomogeneity), and (iii) on different scales (scaling). Key methods for analysis are, fragment size distribution, 2D box counting, Map counting, Cantor s dust, Automated modified Cantor-dust method, Mapping of rock fabric anisotropy, Euclidian distance, and Intercept method. Fault damage zones and associated fracture networks can be analysed based on fracture frequency data using autospectral and wavelet analysis. To understand the number of deformation phases and their successive occurrences, style groups, orientation groups and overprinting relationships of the structural and fabric data can be quantified using non-linear approaches. A newly developed structural-tectonic-geochronology framework, known as tectonic sequence diagram can be employed to decipher deformation histories in more accurate way. Most of these quantitative computations and their graphical visualization can be done using the MATLAB software and its user friendly toolboxes. This software is used not only to provide numerous ready-to-use algorithms for most methods of data analysis but also allows the existing routines to be modified and expanded, or new software can also be developed. The MATLAB scripts, or M-files to solve typical problems in earth sciences, such as simple statistics, time-series analysis, geostatistics, and image processing are available online. These resources also demonstrate the application of selected advanced techniques of data analysis such as nonlinear time series analysis, bootstrapping, image and terrain analysis. Finally, we can conclude that applying quantitative techniques in understanding aspects of the Earth processes will be a major draw into the discipline. Paper ID: Meso-scale tectonic structures in part of Aravalli fold belt, northwestern India: implication to paleo-stress analysis Javed Ikbal, Syed Ahmad Ali Aligarh Muslim University javedikbal@outlook.com Rocks of Aravalli fold belt are the result of poly-phase deformation. Deformed planner and linear meso-scale structures such as joints, boudinage, crenulation cleavage and folds found in this area are considered for paleo-stress analysis. The orientation of these brittle and ductile deformed structures appraised the paleo-stress direction. Acute angle of conjugate joint set, direction perpendicular to the boudin axis and crenulation cleavage (S2 plane), and obtuse angle of the folds or direction perpendicular to the axial plane of folds is the direction of maximum principle stress (?1). The geometric analysis (orientation) of all the structures reveals that the area is affected E-W compressional stress due to compression of Bundelkhand and Marwar craton. Paper ID: Characterization of Heavy Mineral Sand Deposits of Bangladesh Eunuse Akon Consultant, Geological Survey of Bangladesh, Pioneer Road, Segunbagicha, Dhaka, Bangladesh Former Chief Geologist & Director, Bangladesh Atomic Energy Commission eunuseakon@gmail.com The exploratory efforts over the last few decades by Bangladesh Atomic Energy Commission (BAEC) in the south eastern coastal belt of Bangladesh for the heavy mineral sand deposits has resulted in the discovery of seventeen deposits in the beach and off-shore islands covering mainly Teknaf - Cox s Bazar Moheskhali region of the coastal area. These deposits range from ,000 feet in length, 30

49 feet in width and 3-15 feet in thickness containing more than 4 million tons of heavy minerals. These deposits are composed of fine to medium grained sand. The grain size of the heavy minerals range from mm 0.25 mm. Heavy mineral percentage varies from deposit to deposit ranging from 7.30% %. On average mineral sand deposits contain 23% total heavy minerals. Resource estimation shows that the heavy mineral sand deposits altogether contain 1.76 million tons of economically important heavy minerals which are: ilmenite (1,025,000 tonnes), garnet (223,000 tons), zircon (158,000 tonnes), leucoxene (97,000 tons), kyanite (91,000 tons), rutile (70,000 tons), magnetite (81,000 tonnes) and monazite (17,000 tonnes). Mineralogical composition of the heavy fraction in the deposits is as follows: ilmenite %; garnet 4.40% %; zircon 1.20% %; kyanite 0.80% %; rutile 0.44% %; leucoxene 0.9% %; magnetite 0.10% % and monazite 0.05% %. Occurrence of heavy mineral placer deposits in the Bay of Bengal Islands under Bhola and Patuakhali districts and in the river sand bars of the Brahmaputra River has been reported recently. The heavy mineral resource in the Brahmaputra river basins appears to be huge. Mineral Processing activities on the bulk samples from different deposits have been carried out in the pilot plant of BAEC at Cox s Bazar to characterize the separation characteristics of individual heavy minerals using gravity, magnetic and electrostatic separators. Geochemistry of some individual heavy minerals separated at the pilot plant have been compared with those of the commercial grades. Few thousand tonnes of industrial heavy minerals namely zircon, rutile, garnet, ilmenite, magnetite; produced during pilot plant studies have already been used in different industries of Bangladesh. The heavy minerals found in the beach sands, river sand bars and in the Bay of Bengal islands need to be mined sustainably and utilized for the socio-economic benefit of the country. These minerals have large demands at home and abroad. Optimum utilization of the economic heavy minerals found in the mineral sand deposits of Bangladesh will contribute significantly in economic growth and industrial development of the country. These heavy minerals have large scale industrial applications. Ilmenite, rutile and leucoxene are the source of titanium oxide which are extensively used in pigment, paper and paint industries. They are used in manufacture of titanium metal. Because of its excellent properties (lightness, strength, corrosion resistance and heat resistance) it is used extensively in aerospace and aviation industries. Zircon is mainly used in the production of ceramic tiles, refractory and sanitary ware. Monazite is the source of rare earth elements. Thorium metal from monazite has application in nuclear industry fuel assemblies. The Garnet is widely used in making various emery papers and cloths, emery wheels and grinding stones. Keywords: Heavy mineral, beach sand, economic mineral Paper ID: Miocene Reservoir Study, Mid-Eastern Bangladesh Abdus Samad Azad, Zabir Hossain, and Edwin Bowles Kris Energy Bangladesh Ltd. samad.azad@krisenergy.com We represent our experience of studying Miocene reservoir sandstones of an anonymous gas field from the mid-eastern part of Bangladesh. Due to data security policy, we kept the structure and well names obscured and focused only on scientific observations. 3D seismic data supplemented with well logs, drill cuttings and core data were used to interpret our observations. We used IHS Kingdom 2017 for seismic interpretation and GS software for well correlation. The reservoir sandstones of the studied structure are easily correlateable throughout the area because of their high amplitude, subparallel to parallel, continuous banded reflection pattern. However, these reservoir sandstones are often intervened by large-scale canyons/valleys. Reservoir potentiality drastically reduced where the sandstones are eroded by these mud-filled canyons. Our interpretation suggests that these sandstones were deposited at the High Stand of sea level condition and predominantly consists of thin bedded deltaic sandstones. On the other hand, highly incised valleys were formed during extreme low sea level condition and remained sediment starved during the entire low stand period. They were filled in 31

50 the successive late transgressive or High Stand stage. The reservoir sandstones of the studied structure are also well correlateable in the drilled wells. Gamma log response within these reservoir sandstones varies from cleaning-up trend (funnel shaped) to dirtying-up trend (bell shaped) and probably deposited as mouthbar deposits or inter-distributary bay fill deposits. Lithofacies interpretation from core data also confirms electrofacies observation. These fine-grained sandstones typically represent mouth-bar sedimentary facies and contain sedimentary structures e.g., planner lamination, ripple cross lamination, minor thin mud-interclasts, lenticular and flaser bedding and minor plant debris. Trace fossils e.g., planolites, escape burrows and opiomorphaare also common. The reservoir quality is considerably affected both by these sedimentary features and bioturbations. Sedimentary features like flaser and lenticular bedding, mud-interclasts, wavy ripples acted as baffles and reduced vertical permeability. Bioturbations also resulted into poor-connectivity of the macro-pore network and restrained fluid flow within the reservoir zone. Thin section and SEM analysis of the core samples suggest a moderate to moderately good total porosity. The reservoir comprises of small inter-granular pores, minor dissolution pores, and micro-porosity associated with clay mineral aggregates, micalaths, organic materials, microcrystalline and corroded framework grains. Pore throats are commonly constricted by grain-coating clays, organic materials, mica laths, detrital clay resulting in moderately low to poor permeability. Kaolinite is present in minor to moderate amounts and occur as small porelining verms and sheets. Chlorite occur as grain-coating or pore-filling platy aggregates and clumps which also results low permeability. Pore throats sometimes are constricted by quartz-overgrowth and restrained permeability. Feldspar-overgrowth, microcrystalline aggregates and very fine framboids of pyrites, galena and rutile also affected the poor-network and hindered the fluid flow. Paper ID: Thermal Behavior and Magnetic Properties of Co-rich Nd2Fe14B/Fe3B Nanocomposite Magnetic Melt-spun Ribbons with partial substitution of Tb for Nd Palash Chandra Karmaker University of Information Technology and Sciences, Dhaka pckarmaker@yahoo.com Md. Obaidur Rahman Department of Physics, Nguyen Huy Dan Institute of Materials Science, Vietnam Academy of Science and Technology Samia Lslam Liba Materials Science Division, Atomic Energy Center,Ramna, Dhaka Per Nordblad Solid State Physics Department of Engineering Sciences, Uppsala University, Sweden Sheikh Manjura Hoque Chief Scientific Officer and Head Materials Science Division, Atomic Energy Center, Ramna, Dhaka Nanocomposite Nd4-xTbxFe71+yCo5Cu0.5Nb1B18.5-y (x = 0.4, y=0 and 12.5) ribbons were prepared by melt spinning technique with constant wheel speed of 40 m/s. The samples have been annealed in an evacuated quartz tube using a pressure of around 10-5 mbar for 10 minutes at different crystallization temperatures like 675oC, 687oC, 700oC, 712oC, 725oC for Nd4- xtbxfe71+yco5cu0.5nb1b18.5-y (x = 0.4, y=12.5) and 600oC, 625oC, 650oC, 675oC, 700oC for Nd4-xTbxFe71+yCo5Cu0.5Nb1B18.5-y (x = 0.4, y=0) respectively, which are found by differential scanning calorimetry (DSC). Crystallization behavior was studied by X-ray diffraction (XRD) using CuK? radiation ( Å). 57Fe Mössbauer spectrometry in transmission geometry with constant acceleration spectrometer. The 57Fe Mössbauer spectra were recorded at room temperature. The ribbon samples were also characterized by vibrating sample magnetometer (VSM). Tb substitution has significantly enhanced the value of coercivity (Hc) and maximum energy product (BH)max. Highest value of Hc and Mr/Ms have been obtained as 3.66 koe and 0.78 for the sample of composition Nd4-xTbxFe71+yCo5Cu0.5Nb1B18.5-y (x = 0.4, y=0) annealed at 675oC and 700oC for 32

51 10 min. At 625oC maximum energy product (BH)max has been found to be 9.37 MGOe for the sample of composition Nd4-xTbxFe71+yCo5Cu0.5Nb1B18.5-y (x = 0.4, y=0). The M-H hysteresis loops show extremely soft natures which do not possess any area. However, with the annealing of the samples in the above mentioned temperature evolution of large coercivity was observed due to the formation of exchange couple hard and soft nanocrystal composites. Paper ID: Effects of vortex-like ion distribution on dust-acoustic solitary waves in a self-gravitating opposite polarity dust plasma medium A. Paul, G. Mandal, A. A. Mamun, and M. R. Amin A self-gravitating opposite polarity dust plasma (SGOPDP) medium (containing both positively and negatively charged dust, vortex-like distributed ions and Maxwellian electrons) have been considered in order to examine the effects of vortex-like (trapped) ion distribution on dust-acoustic (DA) solitary waves (SWs) propagating in SGOPDP medium. The reductive perturbation method, which is valid for small but finite amplitude SWs, is employed to derive a modified KdV equation having stronger non-linearity. The basic features of the DA SWs in SGOPDP medium are found to be significantly modified by the combined effect of self-gravitational field and vortex-like ion distribution. The results of this paper have many implications in space and laboratory dusty plasmas. Paper ID: Design and development of voltage and over-load current protector for three phase motor Farzana Ferdous Gono Bishwabidyalay ffarzanahossain@gmail.com Md. Abdul Mannan Chowdhury The Voltage and Over-Load Current Protector for Three Phase Motor has been designed and developed with upper and lower voltages set at ± 2% of the normal voltage (220V AC) respectively. The hysteresis for both the upper and lower cut off voltage levels is only about 03 volts. The time delay feature of this device enables the load to be switched ON only when the supply voltage is stable and lies between ± 2% of its normal voltage (220V AC). The voltage detector gives the output high voltage when all the three phase voltages are equal and within ± 2% of the normal voltage. When the load current exceeds the presets value, the motor is deactivated and realizing this problem an overload protector circuit is designed with the help of relay and comparator circuit. The over-load current sensing circuit is used by Hall Effect principle. The load current display circuit is designed with the help of load current sensor and analogue panel meter. The AC input voltage variations are displayed on a linear scale volt meter which ranges from volts. 33

52 Paper ID: Instability and Growth of Temperature, Rainfall and Humidity in Bangladesh Md. Meshbahur Rahman, Mohammad Aminul Kaiser, and Kanis Fatama Ferdushi Shahjalal University of Science and Technology Climate change is the long-term effects of change in temperature, rainfall, and humidity etc. as well as the change of average weather conditions. This study attempts to measure the instability and growth in temperature, rainfall and humidity of Bangladesh based on the secondary data for different geographic location during the period 1947 to 2016 collected from Bangladesh Meteorological Department (BMD). To conduct this study, different statistical tools such as independent sample t- test, linear regression model to examine the change of temperature, semi-log function to work out growth rate have been used. The analysis shows that there is an increase in temperature but rainfall and air humidity has decreased during the study period. It is also revealed that temperature is negatively correlated with the rainfall and humidity. There is an unstable change in the amount of rainfall, humidity, and temperature during the study period. Rainfall shows more instability than temperature. Although, the trend of temperature, rainfall and humidity are not rapid but it may be a big future thread if proper attention and policy are not taken from now. Paper ID: Base Stock Stochastic Inventory System in Jackson Networks Mohammad Ekramol Islam Northern University Bangladesh meislam2008@gmail.com Md. Amirul Islam Uttara University, Dhaka Sayeed Sabbir Ahmed, Dhaka In this paper we consider base stock stochastic perishable inventory system in open Jackson network at a service facility with a infinite waiting room. In this network we proposed single server at each node with attached inventory where each node represents a queue in which different nodes have different service rates and state-dependent service rates change depending on queue lengths. Service times are exponential distributed. Customers arrive in the system according to a Poisson process. There is no priority in serving the customers. All customers at each node are served on a first-come, first-served basis. For this system arriving customers form two waiting line based on the order of their arrivals. The maximum storage capacity for th warehouse is fixed as when the on hand inventory level drops to a prefixed level an order for units is placed. In this model the replenishment of inventory is instantaneous i.e. demand is refilled one unit at a time. The items of inventory have exponential life times. Matrix Analytical method (MAM) is applied for this system. The proposed method is quite efficient and practically well suited for accurate performance estimates. The joint probability distribution of the number of customers in the system and the inventory level is obtained in the steady state case. Some important system performance measures in the steady state are derived. A suitable cost function is defined and analyzed. The total expected cost rate is also calculated. Sensitivity analysis has been carried out to study the effect of variation of parameters. Some numerical and graphical illustrations are provided. 34

53 Paper ID: Optimal production model with quality sensitive market demand, partial backlogging and permissible delay in payment Brojeswar Pal, Mathematics The University of Burdwan In this study, we consider an imperfect production inventory system with quality of the products dependent market's demand structures and allowable delay in payments. Two alternative approaches of trade credit policies have been discussed when the manufacturer could not pay the due amount to the supplier within the credit period offered. Here, a new cycle is begun with new production when the manufacturer's inventory touches to a certain level of shortages. The cycle also ends when backlogged inventory level is reached a certain level. The backlogging rate for the player is dependent on waiting time. The production cost of the manufacturer varies with ordering lot size and quality of product. The behavior of the model under integrated system is analyzed. The sensitivity of the key parameters is examined to test feasibility of the model. Finally, a numerical example is provided to investigate the proposed model. Paper ID: A Numerical Study on One-Dimensional Reaction-Diffusion Equation and Fisher s Equation Faria Ahmed Shami GonoBishwabidyalay fariashami@yahoo.com Laek Sazzad Andallah The paper concerns with the numerical solution of one dimensional Reaction-Diffusion Equation (RDE). A finite difference scheme is considered for the numerical solution of the RDE. A specific RDE, called the Fisher s equation is studied and the scheme is implemented for the verification of the convergence behavior of the Fisher s equation. An analytical solution is discussed. The error estimation of the scheme is presented to show the rate of convergence graphically. The stability condition of the Fisher s equation is determined by performing numerical experiment. Paper ID: Impact of Submarine Landslides in Water Reservoirs: Variation of Height of Obstacles Jeevan Kafle, and Bhadra Man Tuladhar Here, we apply a comprehensive and general two-phase, physical-mathematical mass flow model (Pudasaini, 2012) that consists of non-linear and hyperbolic-parabolic partial differential equations for mass and momentum balances and present three-dimensional, high-resolution simulation results for a real two-phase debris mass impacting a fluid reservoir, akin to hydroelectric power plant. Besides buoyancy, the model includes some dominant physical aspects of the debris flows such as generalized drag, virtual mass and non-newtonian viscous stress as induced by the gradient of solid-volumefraction. In the simulation results, we consider three dimensional circular bumpof different heights with fixed radius and at the same location, the intense flow-obstacle-interaction dramatically reduces the flow momentum resulting in the rapid energy dissipation around the obstacle. With the increase of 35

54 obstacle height, overtopping decreases, but the deflection and capturing (holding) of solid mass increases thereby decreasing moving mass both in amount and speed. These results may help for the proper modeling of landslide and debris induced mountain tsunamis in rapidly changing slopes, the dynamics of turbidity currents and highly-concentrated sediment transports in fluid reservoirs in high mountain slopes, channels, and reservoirs. These results may be extended and applied to hazard mitigation and in solving relevant engineering and environmental task. Keywords: Debris flows; Tsunami; Two-phase mass flows; Three-dimensional simulation; Height of Obstacle; Hazard mitigations Paper ID: Dynamic flow-obstacle-interaction using quasi-two-phase mass flow model Khim B. Khattri, and Bhadra Man Tuladhar The newly constructed generalized quasi-two phase bulk model (Pokhrel et al., 2017)describes some fundamentally new mechanical and dynamical concepts of generalized bulk and shear viscosities, pressure, velocities and flow depth. Here, we present some computational strategies and discritization of the model that involves higher order central differences and donor-cell method. Appropriate rheological and boundary conditions are constructed, including the pressure- and rate-dependent Coulomb viscoplastic deformation and sliding for the mixture, and von Neumann boundary condition for the bulk pressure. Some high resolution simulation results are presented for the flow geometry, mixture velocities and impact pressures with the marker-and-cell method when a debris mass is released from a debris box down the channel that encounters a vertical wall in different positions, slopes and material composition. Our results reveal that the new generalized quasi two-phase model is capable of acquiring the interacting mixture velocities with vertical wall, its overtopping and detachments with the bed.these dynamical quantities play crucial role in the description of the flow, and thus enhances our understanding in more efficiently describing the mixture flows in natural slopes, in the form of landslides, debris flows, particle-fluid transports in hydraulic reservoirs and channels as well as in industrial mass flow. Keywords: Quasi two-phase mass flows; Coulomb-viscoplastic sliding law; Marker and cell method; Donor Cell Discretization; flow-obstacle-interaction Paper ID: Interaction of Two-Phase Debris Flow with Lateral Solid Walls: Dynamic Impact Pressure and Contraction Ratio Parameshwari Kattel, and Bhadra Man Tuladhar Landslides, debris avalanches and debris flows are common mass wasting phenomena in mountain slopes.debris flows can increase their volume and destructive potential by scouring undermining banks, thereby bringing morphological changes. Construction of lateral shear walls as embankments is a way of mitigation. In natural debris flows, solid and fluid evolve dynamically differently and show different interaction with obstacles. So, we employ a general two-phase mass flow model (Pudasaini, 2012) consisting of a set of highly non-linear and hyperbolic-parabolic PDEs for mass and momentum balances for both downslope and cross-slope directions. Besides buoyancy, the model includes the dominant physical aspect of the flow: virtual mass force, generalized drag and non-newtonian viscous stress. Our numerical experiments show that the solid is more obstructed than the fluid when a debris flow passes over a system of converging lateral shear walls resulting in different flow- 36

55 dynamics, wall-interactions and deposition morphology of the phases.the dynamic impact pressure and the novel barycentric impact pressures from the phases are also computed. Narrower the slit, more is the obstruction. The obstruction is related with the contraction ratio of the shear walls. These computations and the observations increase our understanding of the flow dynamics and interactions with the lateral shear walls. The results may be extended further to achieve some engineering solutions to hazard mitigation in debris-flow prone zones. Keywords: Debris flows; Two-phase mass flows; Converging lateral shear walls; Dynamic impact pressure; Barycentric impact pressure; Contraction Ratio Paper ID: Generalized Quasi Two-Phase Mass Flow Model: Derivation and Description Puskar R. Pokhrel, and Bhadra Man Tuladhar We have employed the full dimensional two-phase (solid particles and viscous fluid) mass flow model (Pudasaini,2012), to generate a novel and generalized quasi two-phase, full two-dimensional model for bulk mixture flow down a channel. The emerging model is written as a well-structured system of three highly non-linear partial differential equations in conservative form representing the mass and the momentum balances in the downstream and the vertical direction. The new mechanical and dynamical concepts of generalized bulk and shear viscosities, pressures, and velocities for the mixture characterize the model. A new reduced model is also obtained by considering the identical velocity drift factors in the generalized model. The advantage of this model lies mainly in providing a possibility for simulating thedynamical variables much faster than the two-phase mass flow modeland much accurate than the classical bulk mixture model. We also introduce the velocity drift model which is the function of the shear viscosity of the bulk mixture model. The newly developed rheology of the mixture model as to be presented here plays crucial role in the two phase flow dynamics. The introduction of the velocity and pressure drifts factors makes it possible to reconstruct the two-phase mass flow so as to capture its basic dynamics. Paper ID: Formulation of Mixed Type Trapezoidal Intuitionistic Fuzzy Transportation Problem (MTTpIFTP): An Intuitionistic Fuzzy Approach Nizam Uddin Ahmed, Aminur Rahman Khan, and Md. Sharif Uddin In this paper, we define mask as a transformation that transform real numbers, triangular fuzzy numbers, trapezoidal fuzzy numbers and intuitionistic triangular fuzzy numbers into an intuitionistic trapezoidal fuzzy number by keeping the original properties of the respective numbers. To discriminate fuzzy alternatives, we also define a new type of ranking function for trapezoidal intuitionistic fuzzy numbers considering both the membership and non-membership properties of the numbers. Using these definitions, we formulate mixed type trapezoidal intuitionistic fuzzy transportation problem. 37

56 Paper ID: pai-expanded Biaryls and Their Photophysical Properties Ken-Ichi Sugiura Tokyo Metropolitan University The expansion of the pai-system is one of the most reliable strategies to enhance the properties of molecules. We designed and synthesized pyrene-based axially chiral molecule 1,1'-bi-2-pyrenols, the component pyrene of which is used as a photochemistry standard. Paper ID: Open issues in dusty plasma models for the study of solitary and shock waves A A Mamun Department of Physics,, Savar, Dhaka-1342, Bangladesh mamun_phys@juniv.edu The physics of dusty plasmas and some open issues in dusty plasma models for the study of dust-ionacoustic (DIA) solitary and shock waves are addressed. It has been pinpointed that i) derivation of ion current along with ion density, ii) derivation of Korteweg-de Vries-Burgers equation, and iii) inclusion of the effect of external magnetic field in existing literature, are not correct in general. The dusty plasma model is simplified (by using some reasonable assumptions), and the basic features of the DIA solitary and shock waves are identified. The experimental observations of the identified basic features of the DIA solitary and shock waves are briefly discussed. Paper ID: Facile Synthesis of Thiacalix[n]thiophene derivatives Masashi Hasegawa School of Science, Kitasato University, Sagamihara, Kanagawa , Japan Thiacalix[n]thiophenes, which are consisting of sulfur-bridged oligothiophenes, have cavitand structures. However, their synthesis was often performed under the constraint of a difficult cyclization reaction. Here, we present a facile synthesis of a series of novel thiacalix[n]thiophenes (2) and thiacalix[n]dithieno[3,2-b:2,3 -d]thiophenes, 3 (n=4 10). The detail of the cyclization reaction is depicted in Scheme 1. A palladium-catalyzed coupling reaction of stannyl sulfide (Bu 3 Sn) 2 S and dibromothiophene/dibromodithienothiophene (dibromo-dtt) derivatives gave the corresponding macrocycles in good yield (Scheme 1). After the straightforward separation on a GPC, various sizes of the macrocycles of 4 6mers for 2 and 4-10 mers for 3a g together with acyclic polymers were obtained. In this reaction, the substituents at the β-position could play a key role in effective cyclization. Scheme 1. Synthesis of thiacalix[n]thiophenes (2) and thiacalix[n]dithienothiophenes (3) X-ray analyses of 3a and 3b revealed the molecular structures of square- (3a) and pentagonal-shaped macrocycles (3b), respectively. Unlike conventional calixarenes, they exhibit distinct electrondonating properties. In the cyclic voltammograms, reversible multi redox processes, owing to electronic delocalization, were observed at low oxidation potentials. Compound 3a acted as a Janus- 38

57 head cavitand for two C 60 molecules, whereas the 3b and 3c formed stable 1:1 complexes with C 60 (Figure 1). References R. Inoue, M. Hasegawa,* et al., Angew. Chem. Int. Ed. 2015, 54, M. Hasegawa,* R. Inoue, Synlett, 2016, 27, M. Hasegawa,* Y. Honda, R. Inoue, Y. Mazaki, Chem. Asian. J. 2016, 11, Figure 1. ORTEP drawing of 1 2C 60 Paper ID: Design and development of voltage and over-load current protector for three phase motor Farzana Ferdous GonoBishwabidyalay ffarzanahossain@gmail.com Md. Abdul Mannan Chowdhury The Voltage and Over-Load Current Protector for Three Phase Motor has been designed and developed with upper and lower voltages set at ± 2% of the normal voltage (220V AC) respectively. The hysteresis for both the upper and lower cut off voltage levels is only about 03 volts. The time delay feature of this device enables the load to be switched ON only when the supply voltage is stable and lies between ± 2% of its normal voltage (220V AC). The voltage detector gives the output high voltage when all the three phase voltages are equal and within ± 2% of the normal voltage. When the load current exceeds the presets value, the motor is deactivated and realizing this problem an overload protector circuit is designed with the help of relay and comparator circuit. The over-load current sensing circuit is used by Hall Effect principle. The load current display circuit is designed with the help of load current sensor and analogue panel meter. The AC input voltage variations are displayed on a linear scale volt meter which ranges from volts. Paper ID: Identifying Differentially Expressed Genes Using Mode Fold Change Md. Fazlul Karim Patwary patwary@juniv.edu With the development of microarray technology, scientists can now measure the expression levels of thousands of genes simultaneously in one single experiment. The problem of identifying differentially expressed genes can be defined as: given gene expression measurements from two conditions, find a 39

58 subset of all genes having different expression levels across these two conditions. Analysis of genomic data is challenging due to high dimensionality of data and low sample size. Currently several mathematical and statistical methods exist to identify differentially expressed genes. So Microarray technology has become one of the most important tools for genomic measurements. The technique has been successfully applied to many areas in modern biology such as cancer research, identification of drug targets, and categorization of genes involved in the cell cycle. The analysis of microarray data is difficult due to the vast dimensionality of data and the high levels of noise. The need for solid statistical methods is therefore strong. This study tries to describe a statistical methods for the identification of differentially expressed genes in microarray experiments. Many methods have been suggested for improvement. However, the most popular methods such as Significance Analysis of Microarrays (SAM), samroc, fold change, and rank product. But those are far from perfect. In order to determine which method is most powerful, it depends on the characteristics of the sample and distribution of the gene expressions. The most experienced method is usually SAM or samroc but when the data tends to be skewed, the power of these methods decreases. A comparison of the performance of popular testing procedures for identifying differentially expressed genes from microarray data such as SAM, samroc, fold change and rank product was performed. Modifications were attempted on fold change, replacing the mean gene expression values with the median. It has been observed that, fold change and the modified median fold change were consistently the top performing methods for lognormal data. As the mode is the point of global maximum of the probability density function we can replace the median of fold change with mode and we can call it mode fold change. Then the result will be compared with previous to see the efficiency. In this study we will try to find a flexible alternative method to identify differentially expressed gene. Paper ID: Investigation of the dynamical behavior in a three component SIRS Model Md. Shahariar Hossen and M. Osman Gani Department of Mathematics,, Savar, Dhaka-1342, Bangladesh shahariarshetufight@gmail.com In this work, we analyze the stability of periodic traveling wave of the two-component modified FitzHugh-Nagumo(reaction-diffusion type) model of cardiac cell dynamics. The model equation captured some essential dynamical feathers of a quantitative electrophysiological model of the cardiac cell. It exhibits spiral wave in two space dimensions. It is important to understand periodic traveling waves instability for describing the spiral wave instability resulting from the model. We ascertain the existence of periodic traveling waves and its stability in the model as a function of the diffusion coefficient of activator variable. In addition, we reckon the stability boundary of stable and unstable periodic traveling waves in a two-dimensional parameter plane. It is observed that the periodic traveling waves express instability by a stability change of Eckhaus type. As a result, a stable wave bifurcates to oscillating periodic traveling waves. We describe the stability by calculating the essential spectra of the waves. 40

59 Paper ID: Algorithmic Approach to obtain an Initial Basic Feasible Solution for the Transportation Problems Mollah Mesbahuddin Ahmed, Aminur Rahman Khan, and Faruque Ahmed Department of Mathematics,, Savar, Dhaka The transportation problems consist of finding a model of shipments between origins and destinations such that the total transportation cost is minimized. In the iterative solution procedure of transportation problems, an initial basic feasible solution is prerequisite which ultimately leads to the optimal solution in a finite number of steps. In this paper, we propose a new method to obtain an initial basic feasible solution for the transportation problems. A comparative study by means of example is also carried out to justify the performance of the proposed method. It is observed that the performance of proposed method is remarkable for obtaining an initial basic feasible solution for the transportation problems. Paper ID: MHD Viscous Compressible Fluid Flow with Induced Magnetic Field Md. Tusher Mollah, and Muhammad Minarul Islam Bangabandhu Sheikh Mujibur Rahman Science & Technology University tusher4546@gmail.com Md. Mahmud Alam Khulna University The unsteady MHD viscous compressible fluid flow past a semi-infinite vertical porous plate surrounded in a porous medium with induced magnetic field has been studied numerically. The nonlinear partial differential coupled equations, governing the problem under consideration, have been transformed by using usual transformations into a system of ordinary differential equations, and solved numerically by applying the explicit finite difference method. We have used MATLAB as a tool. The solutions for the density, velocity, induced magnetic field as well as temperature distributions are discussed with respect to graphs obtained by using MATLAB. Finally, the important findings are listed here. Paper ID: Experimental Investigation of LDB-Type Flapping Wind Turbine Md. SabbirAlam, Bangladesh ju_sabbir@yahoo.com Hiroyuki Hirahara Faculty of Engineering, Saitama University, Saitama, Japan Development of micro-windmill as an alternate source of energy are increasing day by day to encounter the energy demand close to the residential area e.g. on rooftops. To install wind turbine near a residential area, it is always an important issue to ensure the structural stability, noise reduction and slow rotating speed in terms of safety consideration. Considering all these factors, slow flapping type wind turbine should be a desired solution for these problems. 41

60 Compare to the traditional rotating wind turbine, we attempt to develop a new concept regarding energy extraction by adopting a flapping mechanism, such application has the prospect of utilizing the wind energy in residential area or rooftops. In comparison with the traditional mechanics, a unique flapping motion to extract wind energy has been considered and it gives an exciting proposition for the wind turbine as it can deliver the predictable amount of energy. We developed a flapping type wind turbine with introducing Chebyshev-dyad link mechanism by which the symmetric wing blade; NACA0012 can transform the wind energy to mechanical rotation through the unique trajectory. The design has been confirmed by optimizing different parameters with better performances. The turbine performance obtained from numerical estimation exhibited a good feasibility which made the appreciation of our experimental investigation. In this report, we investigate the prototype wind turbineexperimentally. Also, the basic performances obtained from numerical simulation and experimental investigations are compared. Paper ID: Geochemical composition of the Plio-Pleistocene sandstones of the Chittagong Tripura Fold Belt (CTFB), eastern Bengal Basin: Implications for provenance and tectonic setting Nafisa Tamanaya Dina Bangladesh Atomic Energy Commission, Savar, Dhaka M. Julleh Jalalur Rahman, Md. SakawatHossain, RumanaYeasmin, and Abu Sadat Md. Sayem Department of Geological Sciences,, Savar, Dhaka 1342, Bangladesh sakawat@juniv.edu Geochemical composition (major, trace and rare earth element concentration) has been studied for sandstones from the Pliocene Tipam and Plio-Pleistocene DupiTila Formations of the Chittagong Tripura Fold Belt (CTFB) - the eastern folded flank of the Bengal Basin to infer provenance, tectonic setting and source area weathering. The Tipam and DupiTila sandstones have high SiO 2 content ( % with an average of 84.18%) compared to underlying Miocene Surma sediments and moderate to low Al 2 O 3 ( %, average 7.78%) content, with very low concentrations of other major elements. Compared to the upper continental crust (UCC), these sandstones are enriched in SiO 2 and K 2 O, and depleted in Fe 2 O 3, Al 2 O 3, CaO and Na 2 O. The REE distribution pattern as well as different geochemical discriminations (e.g., Cr/V vs. Y/Ni, Th vs. Sc, and La/Th vs. Hf) for the Tipam and DupiTila sandstones are the suggestive of felsic granitic source area experiencing moderate to intensive chemical weathering (Chemical index of alteration (CIA) ranges from 57 to 81 (average 72). These sediments preserve the signatures of a recycled provenance related to an active continental to passive margin settings. Keywords: Geochemistry; Plio-Pleistocene sandstones; provenance; Bengal Basin Paper ID: Synthesis and Characterization of cu(ii), fe(iii) Complexes with Pyridine as a Ligand Faridul Islam, Md. Amran Hossain, MdMahbubur Rahman, MdZahidul Islam, Likson Chowdhury, Sreebash Chandra Bhattacharjee, and Jannat Al Foisal mahbubur.ged@diu.edu.bd Transition metal Cu(II) and Fe(III) complexes of pyridine have been prepared and characterized using melting point, conductivity measurement, magnetic study, infrared and electronic spectroscopic methods. The antibacterial and antifungal studies of the metal complexes and the ligand have been evaluated against Macrophominaphaseolina, Alternariaalternata, Fusariumequiseti, 42

61 Colletotrichumscorcolei, Botrogodiplodiatheobromal, Salmonella typhi, Shigelladysenteriae, Escherichia coli and Bacillus cerelus. It was found that pyridine formed stable metal complexes with Cu(II) and Fe(III). The analysis of the spectroscopic data shows that pyridine act as monodentate, coordinating through the nitrogen atom of the pyridine ring. Complexes exhibit 4 and 6 coordinate geometry respectively. The results of the antimicrobial studies showed that the metal complexes have higher inhibitory activity than the original pyridine against the tested bacteria and fungi species. Keywords: Transition metal; pyridine; 4 & 6 coordinate; antimicrobial Paper ID: Physico-Chemical study of the mixed micelle formation between tetradecyltrimethylammonium bromide and benzyldimethylhexadecylammonium chloride in aqueous/urea solution at various temperatures Mohammad Robel Molla musayebju40@gmail.com Malik Abdul Rub King Abdulaziz University Md. Anamul Hoque A study of the mixed micelle formation between tetradecyltrimethylammonium bromide (TTAB) and benzyldimethylhexadecylammonium chloride (BDHAC) has been carried out in the absence as well as presence of urea using conductivity technique. The values of critical micelle concentration (cmc), degree of dissociation (g), micellar mole fractions (X), interaction parameter (?) and thermodynamic parameters of the mixed surfactant system have been evaluated in this study. The evaluated values were examined in accordance with Rubingh model. The obtained values of critical micelle concentration (cmc) were smaller than cmcid values suggesting attractive interactions between the constituents of solution. The micellar mole fractions (X1Rub) of BDHAC, estimated by Rubingh model, were always higher than their ideal values (X1id) suggesting the high contributions of BDHAC in mixtures of TTAB and BDHAC. Activity coefficients (f1rub and f2rub) were always smaller than one in all cases and it indicated the attractive interaction between TTAB and BDHAC. The values of?gom are found to be negative in all the cases which indicate the spontaneous formation of mixed micelle. The values of?h0m are negative in almost all cases indicating the exothermic process. The values of?s0m are positive in case of aqueous medium and 500 mmol.kg-1 urea solutions but found to be negative in attendance of 1000 mmol.kg-1 urea. The values of excess free energy of micellization (?Gex) were also estimated and achieved to be negative showing the stability of mixed micelles. Paper ID: Sensitivity Analysis to the Transportation Problem Md. Ashraful Babu, and M. A. Hoque Department of Management, School of Business and Economics, North South University, Dhaka-1229 Md. Sharif Uddin Department of Mathematics,, Dhaka The transportation problem (TP) has a great impact for its duality property to establish the linear program and its solution. The supply and demand constraints are the main criteria of the duality of TP. The variation of the amount of supply and demand may have an effect on efficiency of the solution 43

62 procedures to the TP. In this paper, we set some new criteria in the theorems of the existence of solution to the TP and prove these in a new fashion. Also we analyze the existing solution procedure to indicate the limitations and perform an analysis to specify the necessary and sufficient condition for optimality to the TP. Keywords: Transportation Problem; Initial Feasible Solution; Optimal Solution Paper ID: A Time Dependent Inventory Model for Exponential Demand Rate Considering Decay in Items Shirajul Islam Ukil Barisal Model School and College, Bangladesh shirajukil@yahoo.com Md. Siddique Hossain Eastern University, Bangladesh Md. Sharif Uddin Department of Mathematics, Dhaka, Bangladesh In this paper a time dependent inventory model is constructed basing on constant production rate. The exponential demand rate decreases gradually. It develops to find total optimum cost, where the products are having finite life, and thereby it allows the item s decay. Production starts with no backlogs. Reaching at the desired level of inventories, it stops its production and then, due to demands along with the decay it initiates its depletion. After certain periods the inventory becomes vanished. The objective of this model is to find out the optimum inventory cost and optimum time cycle. The model has also been justified with proving the convex property and by giving a numerical example. Paper ID: Existence of Periodic Traveling Wave Solutions in a SIS Epidemiological Model with a Nonlinear Incidence Rate Md. Ariful Islam Arif, and M. Osman Gani Department of Mathematics,, Savar, Dhaka-1342, Bangladesh md.arifulislamarif@yahoo.com In this work, we analyze the stability of periodic traveling wave of the two-component modified FitzHugh-Nagumo(reaction-diffusion type) model of cardiac cell dynamics. The model equation captured some essential dynamical feathers of a quantitative electrophysiological model of the cardiac cell. It exhibits spiral wave in two space dimensions. It is important to understand periodic traveling waves instability for describing the spiral wave instability resulting from the model. We ascertain the existence of periodic traveling waves and its stability in the model as a function of the diffusion coefficient of activator variable. In addition, we reckon the stability boundary of stable and unstable periodic traveling waves in a two-dimensional parameter plane. It is observed that the periodic traveling waves express instability by a stability change of Eckhaus type. As a result, a stable wave bifurcates to oscillating periodic traveling waves. We describe the stability by calculating the essential spectra of the waves. 44

63 Paper ID: Numerical Analysis on Heat Transfer Augmentation using ag-water Nanofluids M. M. Billah, M. Sharif Uddin, M. N. Islam, and Aminur Rahman Khan Nanofluids have been introduced for the augmentation in the heat transfer phenomena in the last few years. A prodigious importance has been shown to the mixed convection heat transfer phenomena as it has a very wide range of application in heat exchangers, solar collector, electronics cooling, desalination process and so on. The behavior of nanofluids is explored numerically in an inclined liddriven triangular enclosure heated on bottom surface to gain insight into convective recirculation and flow processes induced by a nanofluids. The present model is developed to examine the behavior of nanofluids considering the solid volume fraction δ. Fluid mechanics and conjugate heat transfer, described in terms of continuity, linear momentum and energy equations, were predicted by using the Galerkin finite element method. Numerical results are obtained for a wide range of parameters such as the Richardson number, and solid volume fraction. Ag-water nanofluids are used with Prandtl number, Pr = 6.2 and solid volume fraction δ is varied from 0% to 10%. The streamlines, isotherm plots and the variation of the average Nusselt number at the hot surface as well as average fluid temperature in the enclosure is presented and discussed in detailed. It is observed that solid volume fraction strongly influenced the fluid flow and heat transfer in the enclosure at the three convective regimes Keywords: Ag-water nanofluid; Finite Element Method; solid volume fraction Paper ID: Geo-environmental characteristics of the relocated tannery industry site around Savar, Dhaka Mahmuda Khatun, Md. Mahfuzul Haque, and Khairul Bashar Department of Geological Sciences,, Savar, Dhaka; and mahmuda@juniv.edu Sultana Nasrin Nury Geological Survey of Bangladesh, Dhaka The tannery industries of Dhaka city have been relocated from Hazaribagh area to the Savar and Keraniganjupazila due to adverse environmental hazard. The present study was carried out to investigate the site characteristics of the relocated tannery project area through geo-environmental analysis to identify the future risk and groundwater vulnerabilities. Furthermore the objectives of this study were extended to bore log analysis, satellite data interpretation, assessment of groundwater vulnerability and contaminant transport modeling. The results of this study showed that geologically the area has huge thickness of alluvium and absence of Madhupur Clay Formation up to 20 m depth. Geomorphological studies indicate that the area is situated around a very dynamic fluvial environment and has been evolved through point bar accretion only within last 40 years. However, the shallow depth of groundwater, loose sediments and absence of clay layer rendered the area very susceptible to groundwater pollution. A fully integrated modeling package Visual MODFLOW and MT3D was used in the study. The model showed that if the contaminant can reach the groundwater of the area, the steep hydraulic gradient towards the Dhaka city will aid the flow and such plume will reach the pumping well of the city within 51 years. To avert such anthropogenic hazard precautionary measures like the use of geo-membrane and hydraulic barriers especially beneath the central effluent treatment plant is very necessary. Keywords: Tannery industry; Remote sensing; Groundwater vulnerability; Contaminant modeling 45

64 Paper ID: Analysis of Dynamic Model for the Transmission of Chikungunya Epidemic in Bangladesh Reshma Akter Jagannath University Md. Haider Ali Biswas Khulna University Payer Ahmed Jagannath University Chikungunya fever (CHIKF) is caused by Chikungunya virus (CHIKV) which is an arthropod-borne virus of alpha-virus genus and Togaviridae family. Initially, the virus is transmitted to human through the bites of infected female Aedes mosquitoes namely Aedes Aegypti and Aedes Albopictus. In Bangladesh particularly Aedes Aegypti is responsible for the transmission of Chikungunya virus. The objectives of the study are to propose a dynamic model on the transmission of Chikungunya virus in Bangladesh and to analyze the mathematical model of Chikungunya virus transmission. We present two preliminary models that consists of the SEIR model for human (host) populations and SEI model for mosquito (vector) populations. We calculate Basic Reproduction Number and perform Positivity and Equilibrium States. The numerical simulations are done in order to illustrate the behaviors of transmission of diseases for different values of parameters. Paper ID: Effectiveness of Media in Controlling Infectious Diseases: A Mathematical Analysis Sharmin Sultana Shanta, and Md. Haider Ali Biswas Khulna University sharmin3349@gmail.com Infectious diseases are very common nowadays hampering the economical development of a country. A highly devastating mortality rate can be experienced in every year for such diseases. Therefore, prevention is quite necessary on right time since there have no proper treatment facilities in the developing countries like Bangladesh. In that situation, media can play a vital role by raising public awareness, telecast valuable programs during the outbreak period showing the harmful effects of infectious diseases. The aim of this paper is to introduce a dynamic model regarding infectious diseases where media works as a control function. The model has been analyzed to test the validity of its well-posedness and the analytical results have been verified with the numerical simulations. The findings of this paper show the importance of media that can be used to increase consciousness among the general population during an infectious period. Paper ID: Approaches and Associated Costs for the Removal of Abandoned Buildings of KUET in Bangladesh Md. Shah Jamal, Md. Farhad Hossain Rakib, and Md. Habibur Rahman Sobuz Khulna University of Engineering & Technology mfhrakib78@gmail.com Demolition, Reconstruction, Reuses, and Recycling (DRRR) Construction materials process has become a popular research area in the worldwide. With increments in the measure of structural 46

65 abandonment comes issues of government intercession, financing of evacuation operations, and the substantial volume of waste stream produced from the abandonment of these structures. In spite of having this phenomenon, the related studies of this field are less in Bangladesh. The study area of this paper is Urban and Regional Planning Building, Teachers Student Center (TSC) and Auditorium in Khulna University of Engineering and Technology (KUET). Based on primary and secondary data, this paper indicates an overview of some approaches of Demolition, Reconstruction, Reuses and Recycling construction materials and also discussed associated costs for DRRR activities. Finally, It is hoped that the discussion of this paper will help improve environmentally socially and economically responsible options in DRRR process of abandoned structures in Bangladesh. Paper ID: Some Observations and Lessons Learned: Cyclone MORA and Land slide of Chittagong, Bangladesh Md. Shah Jamal, Md. Meskatul Islam, Md. Habibur Rahman Sobuz, and Md. Manjur Morshed Khulna University of Engineering & Technology In the last few years, several devastating disasters have occurred in a different part of the world. Cyclone and landslide are common disasters in Bangladesh. Cyclone Mora devastated the coast of south-western Bangladesh on May 30, 2017, and Landslide of Chittagong districts has occurred on June 12, 2017, and caused various socioeconomic impacts including loss of lives, lands, damages to infrastructures and loss of coastal resources. Based on the primary and secondary data the study sought to understand the loss and damages due to Mora and landslide of Chittagong districts consequences on the environment of the southwest part of Bangladesh. The authors rely on personal observation of activities and documentation for which factors were responsible for those disaster or to which they contributed to minimizing the loss. This paper sought the causes, impacts and some technical and managerial techniques of restoration and reconstruction of the affected area. Finally, Results drawn from this research will be useful for a project manager, planners and people pertaining to this fields for future man-made or natural disaster mitigation, restoration, reconstruction, and planning in the studied area and this papers methodology can also be applied in the similar geographic area. Paper ID: Instability and Growth of Temperature, Rainfall and Humidity in Bangladesh Md. Meshbahur Rahman, Mohammad Aminul Kaiser, Kanis Fatama Ferdushi meshbah037@gmail.com Climate change is the long-term effects of change in temperature, rainfall, and humidity etc. as well as the change of average weather conditions. This study attempts to measure the instability and growth in temperature, rainfall and humidity of Bangladesh based on the secondary data for different geographic location during the period 1947 to 2016 collected from Bangladesh Meteorological Department (BMD). To conduct this study, different statistical tools such as independent sample t- test, linear regression model to examine the change of temperature, semi-log function to work out growth rate have been used. The analysis shows that there is an increase in temperature but rainfall and air humidity has decreased during the study period. It is also revealed that temperature is negatively correlated with the rainfall and humidity. There is an unstable change in the amount of rainfall, humidity, and temperature during the study period. Rainfall shows more instability than 47

66 temperature. Although, the trend of temperature, rainfall and humidity are not rapid but it may be a big future thread if proper attention and policy are not taken from now. Paper ID: Application of High Voltage Discharge Plasma for Treatment of harmful water microorganisms Chlamydomonas Algae Md. Abdul Halim, Dr. Ruma Dhaka University of Engineering & Technology (DUET), Gazipur, Bangladesh 2sohel@yahoo.com This research deals with the treatment of Chlamydomonas by generation of high voltage discharge plasma at water surface. Chlamydomonas reinhardtii is unicellular green algae grows on water surface of ponds or lakes over the Bangladesh and in other countries. These are causing several adverse effects for human and other animal beings. We have applied high voltage discharge plasma for the treatment of Chlamydomonas using point to plane electrode configuration. A high voltage test transformer (Model No. HV 9000, TERCO, 50Hz, rated secondary voltage: 140kV) is used as a high voltage supply source for generation of discharge at water surface. High voltage electrical discharge in or above water has been considered as an effective method of water treatment to kill microorganisms, negating the use of chemicals such as chlorine that leads to disinfection by-products which may additionally compromise human health. It is found that high voltage discharge plasma plays a key role for treatment of harmful algae help to remove microorganisms from water. Paper ID: Soil chronoassociation of the Brahmaputra (Jamuna), Padma (Ganges) and Meghna interfluve, Bengal Basin, Bangladesh Zahidul Bari, Md. Sharif Hossain Khan, and Khalil R. Chowdhury A pedologic approach has been taken along with Alluvial morphology to evaluate the Soil-landform evolution of the central part of Bangladesh, as the soil experiences and records the changes occur since the deposition of its parent materials. A soil-geomorphic map has been prepared based on soil resource maps, physiographic maps, toposheets and satellite images consisting thirteen (13) soilgeomorphic units from the study area. Soil-geomorphic units are checked in the field for ground truthing of the unit boundaries; and samples have been collected from those soil-geomorphic units for laboratory analyses. Based on field characteristics of soils particularly solum thickness, ped development and cutan development in the B-horizons of the soil profiles from different soilgeomorphic units, and relative ages of the soils a soil chronoassociation have been developed for the area under study. Depending upon the physiography and the morphology of the rivers of the area six major lineaments/ linear features have been identified. A five membered morphostratigraphy has been prepared based on soil chronoassociation and morphology of the area. 48

67 Paper ID: An experimental evaluation of the direct and indirect effects of endemic seaweeds, barnacles, and invertebrate predators on the abundance of the introduced rocky intertidal barnacle Balanusglandula Takashi Noda, and A. K. M. Rashidul Alam The barnacle, Balanusglandula has recently invaded along the Pacific coast of eastern Hokkaido, Japan. To evaluate the direct and indirect effects of endemic seaweeds, barnacles, and invertebrate predators on the abundance of B. glandula on the rocky intertidal coast of eastern Hokkaido, we conducted a field experiment from June 2011 to October 2012 in which we manipulated the presence or absence of these factors. Seaweeds showed no significant effect on the abundance of B. glandula. The endemic barnacle Chthamalusdalli and the invertebrate predator Nucella lima reduced the abundance of B. glandula. However, the simultaneous influence of N. lima and C. dalli was compensative rather than additive, probably due to keystone predation. These findings suggest that competition by the endemic barnacle C. dalli and predation by the invertebrate predator N. lima decreased the abundance of B. glandula, but that N. lima predation on C. dalliweakened the negative influence of C. dalli on B. glandula. The implications of these findings are twofold: the endemic competitor and invertebrate predator may have played important roles in decreasing the abundance of B. glandula in natural habitats, and conservation of endemic invertebrate predators may be crucial to impede the establishment and survival of introduced barnacles in rocky intertidal habitats. Paper ID: Some Structures of Soft Hemirings Md. Yasin Ali University of Information Technology & Sciences ali.mdyasin56@gmail.com Kanak Ray Chowdhury Mohammadpur Model School and College Abeda Sultana Nirmal Kanti Mitra Bangladesh University of Business and Technology In this work, we have studied the soft hemiring which is the generalization of hemiring and investigated some of its basic properties. The simple soft hemirings, idempotent soft hemirings and regular soft hemirings have been discussed and some related properties on them are studied. 49

68 Paper ID: On Fuzzy Soft Hemirings Abeda Sultana Md. Yasin Ali University of Information Technology & Sciences Kanak Ray Chowdhury Mohammadpur Model School and College Nirmal Kanti Mitra Bangladesh University of Business and Technology Molodtsov initiated the idea of soft set theory which can be used as standard mathematical tool for dealing with uncertainties present in our real life situations. In this work, we have studied the fuzzy soft hemiring and described some operations on fuzzy soft hemirings and proved some results on them. The images and pre-images of fuzzy soft hemirings of hemirings under homomorphism have been investigated. Finally, some properties of normal fuzzy soft hemiring have been studied. Paper ID: On Moore-Penrose Inverse of Matrices over Semirings Kanak Ray Chowdhury Mohammadpur Model School and College Md. Yasin Ali University of Information Technology & Sciences Abeda Sultana Nirmal Kanti Mitra Bangladesh University of Business and Technology In this paper, some basic properties of g-inverse of matrices over semiring are presented. Uniqueness properties of Moore-Penrose inverse is furnished. Some fundamental properties of Moore-Penrose inverse of matrices over semiring are established. Paper ID: Perishable Inventory model for Postponed demand with Reworks Mohammad Ataullah Mohammad Ekramol Islam Northern University Bangladesh Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka-1342 This paper analyzes an inventory model for perishable items with stochastic demand and items deteriorates with a constant rate?. we consider an inventory system with rework where service warranty is provided for limiting period of time. In most of the inventory models, a single stock is considered from where items are served for the customers. Here two stocks are considered. First one is for fresh items and the second one is for returned items. It is assumed that inventory level for the fresh and returned items are pre-determined and finite. When inventory level reaches at s 50

69 replenishment takes place with parameter?. Arrivals of customers for fresh items form a Poisson process with parameter?. When inventory level reaches zero due to demands for fresh items, further demands are sent to a pool with maximum capacity. Paper ID: Fuzzy production-inventory model involving variable demand with normal distribution of lead time for deteriorating item Rabeya Sarker Dhaka International University rabeya835@gmail.com Aminur Rahman Khan, and Md. Sharif Uddin This paper presents a production-inventory model involving variable demand with normal distributed lead time for deteriorating item. At first, we fuzzify the normal distribution of lead time for variable demand as a fuzzy random variable. We considered a production inventory model for deteriorating items with variable demand under the effect of inflation and shortages under fuzziness. The deterioration rate is represented by a two-parameter Weibull distribution. By the centroid method of defuzzification, the proposed model develops for minimizing cost function in the fuzzy sense. The model is illustrated with numerical examples and sensitivity analyses of the optimal solution are performed with respect to different parameters. Paper ID: Solving Transportation Problem Aminur Rahman Khan aminur@juniv.edu Nahid Sultana Department of General Educational Development, Daffodil International University, Dhaka Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka-1342 Initial basic feasible solution (IBFS) to a transportation problem (TP) plays an important role in obtaining a minimal total transportation cost solution to the problem by a method in lesser number of iterations. A good number of methods are available in the literature to find an IBFS. But IBFS varies for different solution procedure and also for different examples. Still there is no unique method that will calculate the optimal solution of all TP. To find the better IBFS, it is necessary to solve the TP by using different algorithms. Because of the intractability of carrying out vast time-consuming computations in TP solution procedure without a soft computing program, thirteen methods are coded in this paper, using Matlab. Twenty sample transportation problems of different sizes, selected at random from some reputed peer reviewed journal are solved to verify the code. Identical results with the manual solution prove the correctness of our code. 51

70 Paper ID: Solving Unbalanced Transportation Problem in MMUM, Where Difference of Supply and Demand Claimed as Prime Number Md. Main Uddin, Abdur Rashid, and Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka In this paper, a solution procedure has been presented for the problem, which arose in MMUM unbalanced transportation problem solution method. Usually, dummy warehouse or plant is used to solve unbalanced transportation problem. Moreover surplus supply is to allocate in the dummy warehouses and extra demand is taken as the supply available at the dummy plants with zero transportation cost. But contradiction occurs here, as replacement without any transportation cost. MMUM is a new solution procedure, presented to solve this contradiction. But in this procedure, a problem has been arisen as the difference of supply and demand sometimes is a prime number. Here in, we introduced a notation to take out the prime number at the range of nonprime. Illustrated result shows that the problem has been solved efficiently. Paper ID: Mathematical model analysis for glucose insulin regulation inside the whole body system Sonia Akter, and Md. Sirajul Islam soniaaa053@gmail.com Bangabandu Sheikh MujiburRahman Science and Technology University, Gopalganj-8100 Md. Haider Ali Biswas Khulna University, Khulna-9208 In this project, we present mathematical models of diabetes mellitus, which is a metabolic disease concerned with the regulation process of glucose in the body by the pancreatic insulin. The models take into account all plasma glucose concentration, generalized insulin and plasma insulin concentration. The models are in the form of ordinary differential equation. We also study about the steady-state and stability analysis. Now we will have discussed numerical simulation are given to verify the analytic result. Numerical simulations are used to validate and describe the stability of the proposed models. Paper ID: An Innovative Approach to Solve Balanced Assignment Problems Md Nurul Huda, Faruque Ahmed, and Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka huda8632@yahoo.com The assignment problem is a particular type of transportation problems in which the objective is to assign a number of jobs to equal number of workers at a minimum cost. In this paper, we propose a new approach for solving the balanced assignment problems. Performance of the proposed method is justified by solving numerical examples. It is observed that the performance of proposed method is acceptable/ efficient for solving balanced assignment problems. 52

71 Paper ID: Effect of Exponential Thermal Boundary Condition on Unsteady Magnetohydrodynamic Convection in a Square Enclosure Filled with Fe 3 O 4 Water Ferrofluid Eare Md Morshed Alam Department of Mathematics,, Savar, Bangladesh morshed_5361@yahoo.com Md. Mustafizur Rahman Department of Mathematics,Bangladesh University of Engineering and Technology (BUET), Dhaka Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka-1342 In this paper, magnetohydrodynamic convection is analyzed numerically for a square enclosure filled with Fe3O4 water ferrofluid. A time-dependent exponential thermal boundary condition is applied at the bottom wall of the cavity. The ferrofluid is modeled as a single phase fluid. Maxwell-Garnet model is used for modeling the effective thermal conductivity and viscosity of the ferrofluid. The Galerkin-weighted residuals method of finite-element analysis is adopted for the numerical solutions. The solid volume fraction,? is varied from 2.5 to 10% and the Hartmann number Ha from 0 to 20. Investigations are carried out for Rayleigh number Ra =104 and 105 over dimensionless times?= The present study indicates that Ra, Ha and? have a significant effect on heat transfer. At? =1, if Ra=104, a higher solid volume fraction maximizes heat transfer whereas at Ra=10^5, a lower solid volume fraction maximizes heat transfer. Moreover, incrementing Ha diminishes heat transfer at Ra=10^4 whereas an optimum value of Ha=10 maximizes heat transfer for Ra=10^5. The exponential thermal boundary conditions have a certain importance on heat transfer. The present results provide necessary information for further investigation of heat transfer in its different applications. Paper ID: Evaluation of the Performance of Various Transportation Problem Solving Algorithms Mollah Mesbahuddin Ahmed, Aminur Rahman Khan, and Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka mesbah_1972@yahoo.com Transportation problems can be solved by general simplex method but it involves time-consuming computations. There are specialized algorithms for transportation problems those are more efficient than the simplex method. In the solution procedure of these specialized algorithms, an initial basic feasible solution is always required to obtain the optimal solution. In this research, we evaluate the performance of various methods for finding an initial basic feasible solution and observed that this performance is inconsistent. Paper ID: An Approach for Solving Symmetric Traveling Salesman Problems Kalyan Mallick, Mohammad Nazrul Islam, and Md. Sharif Uddin Department of Mathematics,, Savar, Dhaka kalyan_uoda@yahoo.com In this paper, we introduce and analyze a variation of the Traveling Salesman problem and present an alternative approach for solving the symmetric traveling salesman problem (STSP). To evaluate the 53

72 performance of proposed method, we have solved several number of numerical problems where it is found that the proposed method takes less number of iterations to obtain the shortest distance. Paper ID: A new Approach to solve balanced and unbalanced Assignment Problems Shabiha Yesmin, M.Shrif Uddin, and Aminur Rahaman Khan shabihay23@gmail.com Abstract In this paper, we discuss a new approach for solving assignment problem. An new algorithm is used to assign all the jobs to workers. The results of new approach are compared with existing methods, and it is observed that the results are better than that of other existing methods. Finally, numerical examples are displayed to show the efficiency of the proposed methodology. Paper ID: A Mathematical Model for Minimizing the Harmful Effects of Drug Addiction in Bangladesh Using Optimal Control Technique Md. Azmir Ibne Islam, and Md. Haider Ali Biswas Khulna University azmiribneislam@gmail.com Drug addiction has recently become a social curse that destroys the normal beauty of mind. Nowadays, young generations are in great danger because they are getting used to drug addiction gradually. In this paper, a mathematical analysis on drug abuse has been established with an optimal control approach. The model has been solved analytically. Numerical simulations have also been performed to verify the analytical results. The analysis of this study reveals that it is possible to control such deadly situation if the addicted people get support mentally and physically. The aim of this paper is to minimize the harmful consequences of drug addiction so that the next generation of our country might have a better future. Paper ID: Development of an Algorithm for Solving Travelling Salesman Problem Emran Islam, Abdur Rashed, and Faruque Ahmed emranju70@gmail.com The traveling salesman problem is a combinatorial optimization problem in Operations research. In literature there are several heuristics and metaheuristics for solving such kind of problems. This paper presents an effective algorithmic heuristic to obtain optimal solution of a traveling salesman problem. A comparative study, showing time complexity, is carried out among existing heuristics, metaheuristics and our proposed algorithm. We also verify our algorithm with several numerical examples. Finally, we observe that our proposed algorithm provides less time complexities compared to the existing heuristics and metaheuristics. 54

73 Paper ID: Comparison the Forecasting Performance of ARIMA and ARFIMA model Md. Mossabber Chowdhury, Md. Moyazzem Hossain, and Ajit Kumar Mazumdar Forecasting is the process of making predictions of the future based on past and present data. It is highly used in econometric as well as time series analysis. There are different types of models which are used in forecasting purpose. However, it is necessary first to identify the most suitable model. If a time series exhibits long memory property, ARIMA model may not be reliable for forecasting. In that case, ARFIMA model may be performing better. This paper therefore, focused on comparing the forecast performance of ARIMA and ARFIMA model. The comparison is model on the basis of model selection criteria like ME, RMSE, MAE, MPE, MAPE, MASE, AIC and BIC. The result indicates that the ARFIMA model has found to be better than ARIMA model. Thus this paper suggests using ARFIMA model instead of ARIMA model when the time series exhibits long memory property. Paper ID: Numerical solutions of higher order boundary value problems (BVP s) using finite difference method (FDM) Md. Amirul Islam amirul.math@gmail.com Uttara University, Dhaka Nurul Alam Khan Uttara University, Dhaka Abdur Rashid, Dhaka In this paper, we consider finite difference method (FDM) for solving fourth order boundary value problems. In order to verify the accuracy, we compare numerical solutions with the exact solutions. The numerical solutions are in good agreement with the exact solutions. Numerical results show that the proposed method is quite efficient and is practically well suited for solving these problems. The approximate solutions converge to the exact solutions monotonically. In order to obtain greater accuracy in the solutions, the step size needs to be very small. Finally we investigate and compute the errors of the solutions for different step sizes. Several numerical examples are given to demonstrate the reliability and efficiency of the proposed method. Paper ID: Optimization Analysis between Broker and Consumer in Cloud Computing Samen Bairaghi, Golam Ittihad Udoy, and Munnujahan Ara Khulna University samenbairaghi13@gmail.com The meaning of cloud computing is storing and accessing data over the cloud instead of computer s hard drive. Cloud computing company faces many problems to make decision for better opportunities and in this case Operation Research (OR) can be used to get a better solution. Cloud computing company is based mainly on three parties: (1)cloud providers, (2)cloud brokers and (3) cloud 55

74 consumers and they are depending on each other. In this work we make an inter-relationship between Broker and Consumer and make a mathematical model by using supply chain. We collect past and current data and use the model to take optimize decisions for better benefit in future of Broker. Paper ID: Modeling the Effect of Adoptive Cell Transfer Therapy for the Treatment of Leukemia Mst. Shanta Khatun, Md. Aminul Islam, and Md. Haider Ali Biswas Khulna University shantaku@gmail.com In this paper, we propose and analyze a mathematical model for leukemia, a cancer of the blood. We model to study the spread of leukemia by considering the effect of adoptive cell transfer therapy. The disease dynamics are given by a system of ordinary non-linear differential equations that describe the interaction between susceptible blood cells, infected blood cells, cancer cells and immune cells. The model is analyzed by using the stability theory of non-linear differential equations and numerical simulation. A major goal of this work is to determine the spread of leukemia after applying the adoptive cell transfer therapy. We have observed that the system is stable in the local and global sense if antigenicity rate of immune cells is greater than a threshold value dependent on the density of immune cells. Also, external infusion of immune cells by adoptive cell transfer therapy reduces the concentration of cancer cells and infected cells in the blood. This implies that immune cells kill cancer cells on being stimulated and as antigenicity rate increases rate of destruction of cancer cells also increase leading to decrease in the concentration of cancer cells and infected cells in the body. Paper ID: Forecasting Agricultural Production in Bangladesh Using Multiple Linear Regression (MLR) Analysis Sayedul Anam Daffodil International University anam.ged@daffodilvarsity.edu.bd Aminur Rahman Khan, and Md. Sharif Uddin Multiple linear regressions (MLR) analysis is a statistical tool to assist decision making. It is also described as the relationship between dependent and independent variable and also estimation in unknown future situations. Objective of this study was to develop a multiple linear regression model for predicting agricultural production based on agricultural inputs (land, labor, fertilizer, pesticides, loan, irrigation, seeds). AR The fitted model of MLR will be used to predict the future agricultural production. The forecasting agricultural inputs are determined by using ARIMA (p, d, q) time series analysis. Eviews 9 and StataMP 13 are performed to compute all types of calculation to prepare the result. 56

75 Paper ID: Stability analysis of PTWs in a diffusive predator-prey model Afia Farzana, Popy Das, Muztaba Ahbab, and M. Osman Gani afiamathju@gmail.com This work concerns with a nonlocal effect on a diffusive predator-prey model. The primary aim of this work is to show the existence of PTW solution of the model in a one-parameter family of solutions. Secondly, we calculate the wave stability and stability boundary in a two-dimensional parameter plane. To understand the stability of the waves we calculate essential spectra of the PTWs. Finally, we compare these results with the direct partial differential equations simulation in order to investigate the mechanism of the irregular behavior of two species ecological systems. Keywords: Reaction-diffusion system; Periodic traveling wave; Predator-prey interaction; Nonlocality; Eckhaus stability Paper ID: Periodic traveling wave solutions in a reaction-diffusion system of predator-prey model Md. Muztaba Ahbab, Afia Farzana, and M. Osman Gani Department of Mathematics,, Savar, Dhaka mdmuztaba40@gmail.com The dynamic conjunction among predator and its prey is one of the extensive themes in ecology.the reaction-diffusion models have been carrying indicatory histories via the theoretical ecology.we consider a model for predator-prey dynamics and show the existence of the periodic traveling waves numerically in a two-component reaction-diffusion system, where the fundamental reaction kineticsis theformulation of classical Rosenzweig-MacArthur type. We investigate the existence of periodic traveling waves for this model. We also investigate the stability in order to understand its stable and unstable phenomena by calculating the essential spectra of the periodic traveling waves. It is observed that periodic traveling wave losses stability via an Eckhaus bifurcation numerically. The irregular pattern of predator and prey are found when the solutions cross the stability boundary. Keywords: Reaction-diffusion equation; predator-prey model; periodic traveling wave; stability; bifurcation Paper ID: Existence of periodic traveling waves in the SIS epidemic model Taslima Khatun, Md. Ariful Islam Arif, Md. Shahariar Hossen, Md. Muztaba Ahbab, and M. Osman Gani Department of Mathematics,, Savar, Dhaka taslimaju21@gmail.com The present study concerns with a coupled reaction-diffusion system for SIS epidemic model in order to understand the spread of infectious diseases. Our numerical direct PDE simulation results show that they move with constant shape and speed meaning that they are periodic traveling waves. In this work, we use numerical continuation methods to calculate the region of the force of infection rate parameter-wave speed plane in which patterns exist. Finally, we find that our results consistent with empirical data. Keywords: Reaction-diffusion equation; epidemic model; periodic traveling wave; bifurcation analysis 57

76 Paper ID: Effect of HFS current on nerve cell dynamics through Hodgkin-Huxley model Navojit Dhali Pallab, Mirazul Islam, and M. Osman Gani Department of Mathematics,, Savar, Dhaka The electrical signals are the basis of neuronal communication. It can be estimated that how neurons communicate with one another using Hodgkin-Huxley model. This model is a most widely used model that describes why the action potentials happen and how they are initiated and propagated in neurons. Membrane behaved as an electrical circuit and the current can be carried through the membrane either by charging the membrane capacity or by movement of ions through the resistance. An action potential is generated when the membrane potential reaches a threshold, the actual changes associated with membrane voltage and conductance driving the action potential. In this talk, we show how different types of stimulation effect on the electrical activities of nerve cells. Paper ID: Bifurcation Analysis of Periodic Traveling Waves in a Two-Component Predator-Prey Model Popy Das, Afia Farzana, and M. Osman Gani Department of Mathematics,, Savar, Dhaka popydas111@gmail.com Predator-prey models are arguably the building blocks of the ecosystem. In this work, we consider a two-variable reaction-diffusion system of equations model to understand the mechanism of an irregular behavior of predator and prey. We investigate the existence of periodic traveling waves for the proposed model via the software package WAVETRAIN. By changing the half-saturation constant ( ) in the hyperbolic functional response we study the numerical existence and stability of the periodic traveling waves(wavetrains) in the model. A key feature of our work is to divide the parameter plane into the stable and unstable region through a stability boundary of Eckhaus type. We calculate the essential spectra of wavetrains to understand the stability of the waves. We also focus on the bifurcation analysis of this model. The episodic act of predator and prey is traced when the solutions cross the stability boundary. Keywords: Reaction-diffusion equations; half-saturation constant; predator-prey; Eckhaus stability; bifurcation analysis Paper ID: Stability of periodic traveling waves in a reaction-diffusion type model of cardiac excitation Mirazul Islam, Navojit Dhali Pallab, Md Abu Talha, and M. Osman Gani Department of Mathematics,, Savar, Dhaka mirazul726@gmail.com In this work, we analyze the stability of periodic traveling wave of the two-component modified FitzHugh-Nagumo(reaction-diffusion type) model of cardiac cell dynamics. The model equation captured some essential dynamical feathers of a quantitative electrophysiological model of the cardiac cell. It exhibits spiral wave in two space dimensions. It is important to understand periodic traveling waves instability for describing the spiral wave instability resulting from the model. We ascertain the 58

77 existence of periodic traveling waves and its stability in the model as a function of the diffusion coefficient of activator variable. In addition, we reckon the stability boundary of stable and unstable periodic traveling waves in a two-dimensional parameter plane. It is observed that the periodic traveling waves express instability by a stability change of Eckhaus type. As a result, a stable wave bifurcates to oscillating periodic traveling waves. We describe the stability by calculating the essential spectra of the waves. Paper ID: Inequality Property of Interchange of Base and Index Md. Maniruzzaman Miah tajmary.ged@daffodilvarsity.edu.bd If a, b R and a b then and are also real numbers. Therefore, by Trichotomy law, either or or But it is important to find out the values of a,b for which either of the equality or inequalities holds. Ifa = 2 and b = 4 then And the Irrational number e plays an important role. Theorem- 1: If e < a < bthen. Proof : Let for n N and r < a b = n a + r (i) Thus we have to proof that, a n a + r > (na +r ) a (ii) For n = 1, LHS of (ii) = a a+r = a a.a r =a a and, RHS of (ii)= (a +r ) a = a a = a a =a a Since b>a>e, then lna> 1, and also lna> etc. So, LHS of (ii)> RHS of (ii). Thus for n = 1, a n a + r > (na +r ) a is true. Again, let (i) is true for n=m, a m a + r > (ma +r ) a Then it has to proof that (v) is true for n =m+1, a (m +1)a + r > { (m+1)a +r} a a m a +r+a > { (ma +a+r} a a m a +r.a a > (ma +r) a.(vi) Now, a<ma+r < a 59

78 a m a +r.a a > (ma +r) a Therefore (vi) is true for all n N. Hence, a b >b a. Theorem-2: If 0 < a < b<ethen. Proof: Let, b = a + r, where r < a..(i) Then, = a a+r = a a. a r = a a And, = a a. (ii) =a a = a a =a a =a a = (a +r ) a If 1 < a < e then So, Hence, from (ii) and (iii),,, Theorem- 3: If a < bthen, if and only ifa = 2 and b = 4. Proof: Ifa = 2 and b = 4, then. conversely, if, then a < e and b > e. Let is true for b = a + r when r < a Now, (a +r ) a = a a =a a = a a = a a+r = a a.a r =a a gives, which is not possible for r < a, because lna = 1 and (lna) 2 = simultaneously. Now, we are to proof that So, it is only possible that i.e. b = 2a and is NOT true for b = a + r when r > a is true for b = a + r when r = a 60 etc can t be happened

79 Paper ID: Word Sense Disambiguation for Bangla Words Using Apriori Algorithm Mohammad Shibli Kaysar, Mohammad Ibrahim Khan Dept. of CSE, CUET Morphological analysis is one of the most critical part of natural language processing. It becomes more complex when the same word have several different meaning. In Bengali language it is a frequent case. In such cases the meaning of the words are determined by other words used in the sentence. Human have the intelligence to do the calculation but when the language is being processed by machine, it would be difficult. in machine learning, there is an algorithm called apriori algorithm which generates frequent item sets to recognize a pattern. In this paper we used apriori algorithm to determine the meaning of a bengali word having multiple meaning. We found the proposed system outperforms the lexicon based system. Paper ID: Pattern Recognition of Rainfall in Bangladesh Using Wavelet Transform Abdur Rahman, Ataul Mustufa Anik, and Zaki Farhana Shahjalal University of Science and Technology airdipu@gmail.com This study explores the regional variation of changing patterns of rainfall in Bangladesh. The analysis consists of five regions of Bangladesh as Dhaka, Cox s Bazar, Rajshahi, Bogra and Sylhet on the rainfall variation. The duration of the study period was chosen as for Dhaka, for Cox s Bazar, for Rajshahi, for Bogra and for Sylhet. The findings of the wavelet analysis reveal that, significant decrease of rainfall has been found in Rajshahi among the study region. It also explores the annual periodicity of rainfall for all the study regions along with a special 6-month periodicity in the Cox s Bazar. In addition, this analysis also explores a dominating 3-4-year cycle of rainfall in all the study regions. Besides the climate change in Cox s Bazar and Sylhet are pretty much alarming. Paper ID: Application of Support Vector Machine in Stock Market Forecasting Comparing with the ANN and ARIMA Models Faruq Abdulla Islamic University faruqiustat09mnil@gmail.com Md. Moyazzem Hossian Sharmin Akter Sumy Islamic University In the domain of stock market, modeling and forecasting the closing prices very sophisticated because of their promiscuous, complexity, irregularity, more dynamical and non-stationary as a day of rest, long-weekend, political violence etc. However, in modern times, many assorted machine learning algorithms dramatically play a vital role in forecasting any sorts of non-standard situations. Recently, the Support Vector Machines (SVMs) pervaded its central domain pattern recognition to the 61

80 regression analysis as a novel forecasting technique. This paper dispensed the SVM to the closing price of Beximco Pharmaceuticals Limited in DSE for forecasting future terms and comparing the forecasting performance with the ANN model and ARIMA model. It is manifested from the experimental results that the SVM provides a massive accurate forecasting performance. Therefore, this paper suggests using SVM model for forecasting purpose of the stocks in a stock market which will be helpful for policymakers. Paper ID: Cloud based offloading algorithm to increase energy efficiency of smartphone battery life Md. Mahfujur Rahman, and Md. Reazul Islam mrrajuiit@gmail.com It is an era of technology. Nowadays mobile is one of the most powerful technology in the new world arena. There are a lot of mobile application which are providing increasingly richer functionalities. As a result, mobile has a high computational complexity which results in high energy consumption of mobile devices. The mobile applications like gaming, virtual reality, social media application and showing videos, others applications are also evolved which require a lot of battery life and processing capacity. So it creates a challenge to increase energy efficiency and performance enhancement as those are resource-constrained devices. These challenges may be alleviated by computation offloading in Mobile Cloud Computing which sending heavy computation to cloud and receiving the results from this cloud. Offloading is one of the main features of MCC to improve the battery life for the mobile devices and to increase the performance of applications. In this thesis, propose a new approach of offloading algorithm that alleviates consumption of smartphone battery life which is based on time complexity. The proposed algorithm solves the offloading optimization problem with much lower complexity than the existing algorithm, which significantly reduces the execution time of mobile applications proved by simulations. Paper ID: Remote Temperature Sensing Line Following Robot with Bluetooth Data Sending Capability Tajim Md. Niamat Ullah Akhund, Ikhtiar Ahmed Sagar, and M. Mesbahuddin Sarker Line following robot is an electronic system that can detect and follow the line drawn on the floor or surface. Generally, this line is specified a predefined path like a black line on a white surface or white line on a black surface with a high contrasted color. In this paper, a line following robot which can follow a white line drawn on a black surface is presented which has the ability to sense the temperature and its corresponding numerical value can display on mobile phone. This technology is applicable in temperature sensitive areas like cold storage, chemical industries, medicine manufacturing farms etc. 62

81 Paper ID: Predicting the Rice Production of Bangladesh by Machine Learning Technique Shohel Mahmud Bangladesh is an agricultural country and its economic condition largely depends on agriculture. The country produces much agricultural merchandise like rice, jute, wheat, onion, chilly, banana, garlic, ginger, pulse and so on. However, rice (Oryza sativa) is produced most widely all over the country. Moreover, United States Department of Agriculture (USDA), 2017 estimate that the rice production of Bangladesh is 34.7 million metric tons for the period and the position of Bangladesh is after China, India, and Indonesia. In addition, Bangladesh produces three types of rice which are Aus, Aman, and Boro. A huge portion of the population in Bangladesh immensely depend on rice as the main food. So, this paper attempts to predict the rice production of Bangladesh with the help of machine learning model like Artificial Neural Network (ANN). This paper considers a secondary data set of yearly rice production in Bangladesh over the period to This paper identifies the most suitable neural network model with architecture ANN based on model selection criteria like MSE. Thus, this paper suggests ANN 3x3x2x1 model for envisaging the rice production of Bangladesh. Paper ID: Modelling for Forecasting the Rice Production of Jessore, Rangpur, Dinajpur, Kushtia and Pabna Districts in Bangladesh Md. Moyazzem Hossain, and Arafat Rahman hossainmm@juniv.edu Bangladesh has an agrarian economy in which rice is the dominant crop. Rice is the staple food, reflected in the high per capita rice consumption in this country. The nutritional demand of the majority of people is met with rice. Over its long history, rice production of Bangladesh has gradually changed in terms of yield potentials, cultivation techniques, and cropping patterns. Despite pressure from over population, the country has reached self-sufficiency in rice production. Thus, this paper attempts to identify the appropriate ARIMA (Autoregressive Integrated Moving Average) model that is used to forecast the production of rice in Jessore, Rangpur, Dinajpur, Kushtia and Pabna districts. In this paper, ARIMA (1,2,1), ARIMA (1,1,1), ARIMA (1,2,1), ARIMA (1,2,2), ARIMA (1,2,1) models are found to be suitable for forecasting the rice production also the test result indicating that the errors of the selected model are not auto-correlated as well as follows the normal distribution. Finally, these models are used to forecast rice production of the selected districts for the upcoming 20 years which help the decision makers to establish the rice production management. 63

82 Paper ID: Modeling of Mean Sea Level of Bay of Bengal: A Comparison between ARIMA and ANN Md. Moyazzem Hossain, Shezan Ahmed, Md. Habibur Rahman hossainmm@juniv.edu The Bay of Bengal is the largest bay in the world with waters flowing straight out of the Himalayas through Bangladesh. Roughly triangular, it is bordered by Bangladesh to the North, Myanmar to the East, Sri Lanka and India to the west. Sea level change is one of the many impacts of the recent trend of changing climate (IPCC). A further rise in sea level is a threat to the existence of many people in Bangladesh. If the sea level rises by 45 centimeters, scientists expect a permanent loss of up to 15,600 square kilometers of the land of Bangladesh. Moreover, indirect effects of the rising sea level will increase the salt content of soils. In view of Bangladesh s already problematic food situation, the expected decrease of rice production as well as several hundred tons of vegetables, lentils, onions and other crops could be disastrous. Last but not least, valuable ecosystems would be lost. The Sundarbans, huge mangroves swamps along the coasts that are part of the United Nations world natural heritage, will be especially affected. They are the last retreat of the Bengal tiger. Thus this paper attempt to identify the most suitable model for forecasting the mean sea level of Bay of Bengal. Here, this paper forecast the future mean sea level using both ARIMA and ANN model and compare the forecasting accuracy of these two models. On the basis of model selection criteria considered in this study, we find that the ANN model performs better than ARIMA model. So, in order to forecast the mean sea level of Bay of Bengal, this study suggests using ANN model instead of ARIMA model. Paper ID: Comparison the Forecasting Performance of ARIMA and ARFIMA model Md. Mossabber Chowdhury, Md. Moyazzem Hossain, and Ajit Kumar Mazumdar mossabberbd@gmail.com Forecasting is the process of making predictions of the future based on past and present data. It is highly used in econometric as well as time series analysis. There are different types of models which are used in forecasting purpose. However, it is necessary first to identify the most suitable model. If a time series exhibits long memory property, ARIMA model may not be reliable for forecasting. In that case, ARFIMA model may be performing better. This paper therefore, focused on comparing the forecast performance of ARIMA and ARFIMA model. The comparison is model on the basis of model selection criteria like ME, RMSE, MAE, MPE, MAPE, MASE, AIC and BIC. The result indicates that the ARFIMA model has found to be better than ARIMA model. Thus this paper suggests using ARFIMA model instead of ARIMA model when the time series exhibits long memory property. 64

83 Paper ID: On the Marginal Likelihood Method of Estimating and Testing Parameters of Remainder Disturbances Follow a Specified AR(p) or MA(q) Process Lakshmi Rani Kundu IQAC, Dr. Ajit Kumar Majumder lakshmikundu39@gmail.com The usual reason for including a disturbance term in the regression model is to account for the effects of omitted or unobservable regressors, errors in the measurement of the dependent variables and functional approximations. Some of these effects are typically autocorrelated over time. Usually AR(4) or MA(4) arise in quarterly data. For the error components model with the remainder error following an AR (p) or MA (q) process, the estimation method becomes more complicated in the presence of nuisance parameters along with sign of the parameters. In order to solve the above problems, we use marginal likelihood estimation method that can be used to test the parameters of an error component model. Paper ID: Integrating Overweight-obesity and Reproductive Factors of Married Women in Bangladesh Md. Meshbahur Rahman, Zaki Farhana, Tania Akhter Tani, Mohammad Ohid Ullah Shahjalal University of Science and Technology meshbah037@gmail.com Overweight or Obesity has become a burning question because it is associated with various health complications. It is increasing day by day all over the world. In Bangladesh, it is higher among Bangladeshi women than men. Therefore, we aim to integrate the overweight-obesity factors with the reproductive factors among the married women in Bangladesh aged years. Methods: To conduct this study we used a secondary cross-sectional data on a wide range of indicators relating to population, health, and nutrition from Bangladesh Demographic and Health Survey (BDHS) In this study, we analyzed married women s nutrition-related data using logistic regression model and multi-factor analysis (MFA). Results: The data included 17,863 married women of various ages. Of women, about 18.8% were overweight and 4.3% were obese. Women of Khulna, Chittagong, and Dhaka division had a higher risk of being overweight or obese compared to the women of the Barisal division. The richest women were times (95 % CI: , p < 0.001) more likely to be overweight or obese compared to poorest women. It was also found that the prevalence of overweight or obesity was higher in urban (37.5%) women than rural women (19%). From the multifactor analysis, we found in overweight-obesity factors- Wealth Index, TV watching and current occupation of women are positively associated with overweight or obesity. Integrating the factors of overweight-obesity with reproductive groups, we found -Wealth index, Current occupational status and TV Watching in the overweight-obesity group are positively associated with Educational status and Breastfeeding of the reproductive group. Conclusions: Taken together, we can conclude that a large number of married women were suffering from overweight-obesity problems. Therefore, special health-related programs such as promoting the higher level of physical activities, ensuring nutritional food policies and improving awareness through educational institutions should be provided substantially for reducing the prevalence of overweight or obesity of married women in Bangladesh. 65

84 Paper ID: A Comparative Study among Poisson, Negative Binomial and Hermite Regression Shohel Mahmud, Md. Moyazzem Hossain, and Karimuzzaman Sunny aplanetofs@gmail.com Count data regression modelling techniques have become important tools in empirical studies and its applicability grows day by day. In case of count data Standard regression analysis is inappropriate. However, if certain assumptions are met, in general, the most common regression approach for handling count data is probably Poisson regression approach. Real data, however, are often over- or under-dispersed and, thus, not conducive to Poisson regression. In such situation, some other regression approaches like negative Binomial, Hermite regression give a better result. So, in this paper, a comparative study has been conducted to find out best regression model by using Akaike information criterion (AIC). Paper ID: On the Performance of Automatic Forecasting Analytics: A Monte-Carlo Simulation Study Farhana Akter Bina Department of Statistics, Forecasting is a very challenging task in time series analysis. Risk and uncertainty are central to forecasting and prediction; it is generally considered good practice to use the appropriate time series model for the forecasting purpose. In this regard, Automatic Forecasting Analytics can be very useful to evaluate the appropriate model if it performs well. We conduct Monte-Carlo Simulation to evaluate the autoforecasted model and we observe that autoforecasting analytics does not provide the best model. Our estimated models perform better than the models estimated by Autoforecasting Analytics. Paper ID: Technical Analysis to Evaluate Behavior of Stocks and Use of Technical Indicators in Computer Intensive Method An Application to Selected Stocks of DSE Sharmin Islam Department of Statistics,, Savar, Dhaka-1342 Different technical indicators are used to analyze price movement of stocks. We observe that moving average convergence divergence (MACD) indicator performs better for our selected four Banks of Dhaka Stock Exchange. We observe that the performance of moving average, Stochastic RSI and William %R, Bollinger band, and candlestick charting indicators are also satisfactory. These indicators can be used along with closing price as input for Neural Network method to forecast closing prices. Keywords: Technical analysis; DSE; Computer Intensive Method; Neural Network 66

85 Paper ID: Solitary Waves in Rotational Pulsar Magnetosphere T. I. Rajib, A. A. Mamun, S. Sultana The nonlinear propagation of intense electromagnetic waves and modulational instability in a rotational ultra-relativistic magnetized electron-positron pair plasma of a pulsar magnetosphere have been theoretically and numerically investigated by deriving as well as solving nonlinear Schrödinger equation. In order to study the nonlinear wave propagation in the rotational astrophysical objects, one must be considered Maxwell's equation in the rotational frame of reference (Non-inertial frame) along with other equations (continuity, momentum, and heat conductivity equation) to conserve one of the basic properties of light i.e. light passes in a straight line. It has found that the electromagnetic waves propagation in such a plasma system is modulationally unstable, and the model leads to electromagnetic solitons under the condition of extreme rotation. It is noticed that high amplitude solitons are produced in the pulsar magnetosphere. It is also found that the soliton s amplitude increased rapidly while their widths become narrower with the increased of pulsar rotations that are related to the pulsar radiation (electromagnetic radiation). The findings of this investigation may be used in understanding the nonlinear electromagnetic waves phenomena in rotating astrophysical plasmas and laboratory plasmas. Paper ID: Determination of Effective Dose of the Thyroid Gland in Nuclear Diagnostic During Thyroid Scan Maryam Mumu, and Farzana Ferdous Gono University Md. Selim Reza Institute of Nuclear Medicine and Allied Sciences (INMAS), Kumaresh Chandra Paul Gono University Golam Abu Zakaria Gummersbach Hospital, Academic Teaching Hospital of the University of Cologne, Gummersbach, Germany maryammumu@gmail.com Nuclear medicine is the use of radionuclides in medicine for diagnosis and treatment of diseases. In nuclear medicine imaging small amounts of radiotracers are injected into the bloodstream, inhaled or swallowed. It has effect on the body after administrating radionuclide into the body. The purpose of the study is to determine the effective dose of thyroid gland in nuclear diagnostic during thyroid scan. The study was performed on 100 patients presented for thyroid scan in Institute of Nuclear Medicine and Allied Sciences (INMAS), Dhaka Medical College Campus, Dhaka, Bangladesh. The organ dose and effective dose were calculated after administration of 99mTc pertechnetate using Medical Internal Radiation Dosimetry (MIRD) manual calculation and MIRD software. The uptake of radionuclide in thyroid was considered 4% for the dose calculation. The mean age of male, female, children (girl) and children (boy) were 40.92, 39.7, and 4.5 years respectively. The mean effective dose of male, female, children (girl) and children (boy) calculated using MIRD manual calculation were 0.983±0.136, 0.936±0.0996, 0.92±0.208 and msv respectively. The mean effective dose of male, female, children (girl) and children (boy) calculated using MIRD software were 0.711±0.098, 0.824±0.088, 1.105±0.250 and 2.37 msv respectively. Two different options was used for calculating by software in respect of adult males and female. This can be the reason for the difference of dose to male and female. The age and weight of children (girl) patients were 13, 14, 17 years and 38, 44, 44 67

86 kg respectively but during calculation by software, 15 years (57 kg) option was used for them and the age and weight of children (boy) was 4.5 years and 14 kg respectively but the dose of the patient was calculated by using 5 years (19kg) option. Because in software there was no option for 13,14, 17 and 4.5 years. This can be the reason of high dose to them compared to manual calculation. The obtained effective doses of patients during the imaging procedure were in acceptable limit. The dose was very little to induce cancer in thyroid gland. Paper ID: Effects of Gamma Irradiation on Structural, Optical and Morphological Characteristics of Nanostructured Cupric Oxide Thin Film Humayun Kabir, Sazzad Hossain, and Pooja Sarker, Md Nasrul Haque Mia, and Mahbubul Hoq Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Md Abdul Mannan Chowdhury rumy140@yahoo.com Cupric oxide thin films were prepared by doctor blade method on microscopic glass substrate. The appearance of the films were generally uniform and brownish black in color. The gamma radiation dose from Co60 source given to the sample having dose of 20KGy, 40KGY, 60KGy, 80KGy and 100KGy. The optical, structural and morphological properties of as deposited films have been characterized by ultraviolet-visible spectroscopy, X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) respectively. The effect of gamma radiation on the structural, optical and morphological properties was studied. The XRD pattern showed that the thin films produced were found to be polycrystalline with monoclinic structure. The preferred directions of crystal growth appeared in the CuO thin films were correspond to the reflections from the (110), (?111), (111) and (?202) plane and the dominant peak observed at the plane (?111) at an angle of Cupric oxide is intrinsically p-type semiconductor. The optical parameters of prepared films as transmittance, absorbance, optical band gap, absorption co-efficient, skin depth and extinction co-efficient were found to be influenced by varying radiation doses. The effect of gamma radiation on CuO thin films were observed. The transmittance of the films were decreased and the absorbance of the films were increased with increasing radiation doses. It has a clear significance on the band gap measurement before and after radiation effect within these sample. The optical band gap decreases with increasing radiation doses both for direct and indirect transitions. According to results, the film affected by highest radiation dose 100KGy obtains the better optical properties. The SEM images revealed that the surface morphology changed with changing radiation doses. It also confirmed the monoclinic crystal structure with polycrystalline nature of thin films. The Cu and O concentrations in the CuO films were determined from Energy Dispersive X-ray (EDX) study. Finally the obtained results revealed that the structures and properties of the films were greatly affected by gamma radiation doses, and it made the cupric oxide thin film suitable for various applications. 68

87 Paper ID: Fabrication and Characterization of Sawdust Fiber Reinforced Acrylonitrile Butadiene Styrene Composites Nabila Tasnim Nova, Budrun Neher, and Md. Mahbubur Rahman Bhuiyan Md. Abdul Gafur Bangladesh Council of Scientific & Industrial Research (BCSIR) Md. Kamal Hossain, Mst. Shamima Khanom, Farid Ahmed, and Md. Abul Hossain One of the major ecological problems we are confronting today is the plastic waste problem. The huge amount of plastic generation and utilization in each section of our life has expanded the plastic waste in immense scale. This is the reason why the natural resources have become a field of interest for the researchers. Sawdust fiber reinforced Acrylonitrile Butadiene Styrene (ABS) biodegradable polymer composite was prepared by using a hot press machine at 180? and 50KN. Five different weight percentages (0wt%, 5wt%, 10wt%, 15wt%, 20wt%) of fiber content were incorporated in sawdust- ABS composites. The maximum bulk density was found to be gm/cm3 for 20wt% composite. Percentage of water absorption increased with the increase of fiber content and soaking time. The tensile strength decreased with the increase of the fiber content. For 5wt% composite the elongation at break was maximum and Young s modulus increased with the addition of fiber content. Leeb s rebound hardness decreased with the increase of fiber content which means that the prepared composites were not as stiff as the pure ABS polymer. Fourier Transform Infrared (FTIR) spectra were also observed to find out whether any new bond was formed. A C?C bond was found for 20wt% composite at 2363 cm-1 and the C-H bond for 0wt% composite at 911 cm-1 was not present in all other composites. Paper ID: Design and Development of Microcontroller Based Radiation Survey Meter Using Two Scintillation Detector Humayun Kabir, Ariful Alam, and Kazi Golam Martuza rumy140@yahoo.com Fahmida Akter, and Farhana Hafiz Institute of Electronics (IE), AERE, Savar, Dhaka, Bangladesh Md Abdul Mannan Chowdhury An Arduino (new generation high performance microcontroller) based radiation survey meter has been designed and developed using two scintillation detectors. A square wave pulse train of 16 KHz frequency was generated from the Arduino to produce high voltage. This regulated high voltage (1200V) power supply was used to activate the scintillation detector. Two pre-amplifier circuits and two amplifier circuit were designed to amplify the small output signal of the detector. A summing circuit was used to add two individual amplified signals to provide total pulse to the microcontroller. The Arduino microcontroller senses and processes the pulse and show the result through a liquid crystal display. The programming language C has been developed for pulse generation and to control the function of Arduino. The performance of the developed system was tested and compared with microcontroller based radiation survey meter having one scintillation detector and with CANBERRA NIM counter. The performance of the designed system was quite satisfactory. 69

88 Paper ID: Dust-Acoustic Solitary Waves in a Self-Gravitating Opposite Polarity Dust-Plasma Medium with Trapped Ions Ismita Tasnim, M. G. M. Anowar, and S. Rawson Begum Rokeya University, Rangpur ismita.tasnim@yahoo.com A A Mamun, Savar, Dhaka Nonlinear propagation of dust-acoustic solitary waves (DASWs) are studied in a self-gravitating dusty plasma containing inertial dust of opposite polarity, trapped ions, and Boltzmann electrons. The reductive perturbation technique is employed to derive standard Kortweg-de Vries (KdV) and modifed Kortweg-de Vries (mkdv) equations and their solitary wave solutions. The parametric regimes for the existence of the DA solitary structures (associated with electrostatic and gravitational potentials) and their basic properties (viz., polarity, amplitude, width, and speed) are found to be significantly modified by the combined effects of positively as well as negatively charged dust component, self-gravitational field, and trapped ions. The present investigation can be very effective for understanding and studying the basic features of DA wave in different space dusty plasma environments are briefly discussed. Paper ID: Investigation of Fiber Loading on Physico-Mechanical Properties of Bamboo Fiber Reinforced ABS Polymer Composite Md. Rashedul Islam, Md Kamal Hossain, Mst. Shamima Khanom, and Budrun Neher Department of Physics, biddutphy.ju@gmail.com Md. Abdul Gafur PP & PDC, Bangladesh Council of Scientific & Industrial Research Farid Ahmed, and Md. Abul Hossain Department of Physics, Polymer based product has been playing a vital role in our everyday life and along with the increasing usage of plastics there is an increasing threat to the environment due to its non-biodegradable nature and sometimes they are impractical to recycle due to high cost. Plastic based waste disposal is another matter of great concern for every country. These issues concerning ecological effect and also the potential diminution of petrochemical deposits has led to the development of alternative natural and renewable resources. Natural fiber reinforced plastics material has become very attracting alternatives because of their low cost, light-weight, enhanced mechanical properties and are free from health hazard. This composites are biodegradable and environmental friendly as it has little contribution in greenhouse gas emission. For the past decades lots of research work have been conducted to enhance the mechanical properties of natural fiber reinforced composite for their various potential applications. In this research work, we prepared bamboo fiber (BF) reinforced acrylonitrile butadiene styrene (ABS) composite by varying fiber content in order to improve mechanical properties of this natural fiber reinforced polymer composite. The BF-ABS composites were fabricated by hot press molding at 180? and 50 KN, by varying bamboo fiber content i.e., 5, 10 and 15 wt.% and the physical, mechanical and bonding properties were studied by universal testing machine (UTM), rebound hardness tester and FTIR spectroscopy. The bulk density of composite decrease with the addition of bamboo fiber and it is lowest for 10 wt% composite. With the increase of fiber content the water absorption increases and 15 wt.% BF-ABS composite absorb more water. The tensile strength of BF- ABS composites decrease with the addition of bamboo fiber. But for 10 and 15 wt.% it increases 70

89 gradually. The elongation at break increases with the addition of 5 and 10 wt.% bamboo fiber to ABS polymer however it decreases for 15 wt.% BF-ABS composite. The leeb rebound hardness increases for 5 wt.% BF-ABS composite but it decreases gradually for further fiber loading. The Fourier transform infrared (FTIR) spectra reveals that for 5 wt.% fiber addition a new N-H bond appears and for 15 wt.% fiber loading another new bond O-H appears. Paper ID: Extraction of Different Natural Dyes from Flower Plants S. M. Amir-Al Zumahi, Md Kamal Hossain, Shariful Islam, and Md. Nurul Abser Department of Physics, amirzumahi@gmail.com Rummana Matin, and M. S. Bashar IFRD, Bangladesh Council of Scientific and Industrial Research Farid Ahmed, and Md. Abul Hossain Department of Physics,, located in Bangladesh, has a rich biodiversity with diverse plant kingdom. Environmentally benign dyes are one of the most important product of nature. Recently there has been an increasing demand for use of such natural dyes as the environmental issues with synthetic dyes are highly regulated by more and more countries due to their adverse effect on environment and other health hazard related to their increasing commercial uses. With more than hundreds of natural dye resources from nature at our disposal, five flower plants namely Portulaca grandiflora (Time flower), Rosa ards rovar (Red rose), Celosia argentea var. cristia (Plumed cockscomb), Pereskia bleo (Desert rose) and Alternanthera ficoidea (Border plant) were chosen as common dye sources for the present research work. In this paper we report, the extraction process for five different collected flower plants utilizing different dye extraction methods to decide the best dye removal process. Also a comparative study was performed for different solvents, ethanol and water, as used to extract the natural dyes. The analytical studies, for example, UV spectroscopy, column chromatography, vacuum evaporation for isolating dye from their solution and X-Ray Diffractions were performed on the dye extracts. The UV-vis spectra of the pigments in the flower extracts were found to have broad absorption peaks from 400 nm to 800 nm. The extracted dyes were investigated by Fourier transform infrared spectroscopy. Investigation of different extraction techniques for natural dyes demonstrated that ethanol produced a better extraction than water. Dye extraction yield rate extended from 1.08 % to 6.7% which was determined by the plant removed and solubility of pigments extracted by two solvents. Column chromatography was utilized as a dye purification method and also used for the study of the aging impact for 60 days at room temperature (25 C) and at 60 C. Paper ID: Design and Development of Microcontroller Based Digital Soil ph Meter Humayun Kabir, and Naima Akter Roly rumy140@yahoo.com Farhana Hafiz, and Fahmida Akter Institute of Electronics (IE), AERE, Savar, Dhaka, Bangladesh Kazi Golam Martuza, and Md. Abdul Mannan Chowdhury In this work, a low cost, portable microcontroller based soil ph meter has been designed and developed using a resistive sensor, a buffer circuit and an ATMEGA328 microcontroller. A low 71

90 voltage power supply was designed to operate the buffer circuit, sensor as well as microcontroller. The buffer circuit was used to obtain the output voltage of the sensor. A summing amplifier was also used to raise the output voltage of the sensor. The output of the summing amplifier is allowed to send the microcontroller as input. A C++ programming language and Arduino IDE software have been developed to control the function of the microcontroller. The output of the microcontroller was allowed to display as a ph value by using a 16 2 keypad shield LCD display.the developed system has been tested several ways and found satisfactory results. Paper ID: Simulation of Track and Landfall of Cyclonic Disturbances over the Bay of Bangal Using WRF- ARW Model Humayun Kabir, Shammy Akter, and Shuvro Kumar Dev rumy140@yahoo.com Muhammad Abul Kalam Mallik, and Md. Abdul Mannan Bangladesh Meterological Department, Dhaka 1207 Md Abdul Mannan Chowdhury Almost every year, tropical cyclone forms over the Bay of Bengal in pre-monsoon and post-monsoon which strike Bangladesh coast and the east coast of India. The genesis, propagation, and intensity as well as landfall are very important for a tropical cyclone. Till today the full thermodynamic features of a cyclone is not solved. In this work, an attempt has been made to simulate the track and landfall of cyclonic disturbances over the Bay of Bengal by using Weather Research and Forecasting (WRF) model. The WRF model (version 3.8) was run in a single domain of 20 km horizontal resolution.the model was run using WRF Single-Moment 3-class microphysics scheme, Kain- Fritsch (new Eta) cumulus physics scheme, Yonsei University planetary boundary layer scheme, Revised MM5 surface layer physics scheme, Rapid Radiative Transfer Model (RRTM) for long-wave and Dudhia scheme for short-wave scheme. The model was run for 24-h, 48-h, 72-h and 96-h using the National Centre for Environmental Prediction (NCEP) high-resolution Global Final (FNL) Analysis 6-hourly data using initial and lateral boundary conditions. The model performance is evaluated analyzing Mean Sea Level Pressure (MSLP), Wind Pattern, Relative Humidity, Relative Vorticity, Vertical Wind Shear, Temperature, Vertical distribution of Velocity components and Rainfall distribution. The model successfully captured the low pressure system, initial condition, propagation, landfall time and location reasonably well. Even in 96-h prediction, model has successfullysimulated the landfall. The model simulated track and landfall are sensibly compared with the data observed by BMD. The model simulated landfall position error are found 53 km, 129 km, 119km and 23 km for 96-h, 72-h, 48-h and 24-h model run respectively. The model simulated landfall time errors are found 02E, 06D, 02E and same for 96-h, 72-h, 48-h and 24-h model run respectively (E indicates Earlier and D indicates Delay). The minimum time and position error is found in 24-hrs simulation. The model simulated rainfall of some stations of BMD is also compared with the observed rainfall. The spatial distribution is captured by the model well but the computational station rainfall is found less than that of observed rainfall. 72

91 Paper ID: Simulation of Pre-monsoon Convective Systems for Understanding Their Thermodynamic Features Using NWP Model Humayun Kabir, Shuvro Kumar Dev, and Shammy Akter Md. Abdul Mannan, and Muhammad Abul Kalam Mallik Bangladesh Meterological Department, Dhaka 1207 Md Abdul Mannan Chowdhury In this work, variability of rainfall of pre-monsoon months has been analyzed. For this monthly rainfall of March, April and May as well as pre-monsoon season for the period of of eight divisional locations of Dhaka, Chittagong, Rajshahi, Khulna, Barisal, Rangpur, Mymensingh and Sylhet have been analyzed. It is found that the variability measured through STD is very high at all of the selected locations and the trends of pre-monsoon rainfalls are mostly negative. The trends of premonsoon rainfall at Dhaka, Chittagong, Rajshahi, Khulna, Barisal, Rangpur, Mymensingh and Sylhet are -9.13, -5.73, +0.05, -4.58, -3.57, -0.34, -5.13, mm/year respectively. To know the atmospheric condition during the days of heavy rainfall associated with the STS different stability indices of seven selected dates of 08 April 2012, 09 April 2012, 06 May 2013, 19 April 2017, 22 April 2017, 23 April 2017 and 24 April 2017 during were calculated. The lowest magnitudes of SI, LI and KI were -8.1, -10.2, and 23.7 respectively. The highest value of CAPE was Jkg-1. Signatures of heavy rainfalls were mostly concentrated over central and adjoining southeastern parts of Bangladesh. The highest amounts of rainfalls of 129, 122 and 112 mm are found to record at Hatiya, Kutubdia and Chittagong respectively 06 May Two significant rainfall events occurred in Bangladesh during of 06 May 2013 and 22 April 2017 are simulated using WRF Model with the aim to understand the inherent features of pre-monsoon convective system. Simulation reveals that evolution and persistence of high temperature at 2m, high relative humidity (RH), strong convergence, high CAPE and vorticity and their vertical extension upto midtropospheric level are the main cause and features for the heavy rainfall associated with STS in Bangladesh. Location specific simulated rainfalls (based on BMD rain gauge locations) were compared with observed rainfall to know the performance of the model. Model rainfalls were found highly co-related with the observation but station average model rainfalls were higher than observations. Locations of the simulated heavy rainfall zone were found very near to observations. Simulated results can there be used to identify the pre-monsoon convective system and estimation of rainfall amount associated with STS. 73

92 Paper ID: Investigation of Sol-Gel Synthesis of Nano-Zinc Oxide Rod Thin Films Humayun Kabir Umme Habiba European University, Bangladesh Md. Nasrul Haque Mia, and Mahbubul Hoq Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission Kazi Golam Martuza, and Md. Abdul Mannan Chowdhury Nano sized Zinc Oxide rod was synthesized onto glass substrate via simple sol-gel technique. The structural, morphological, chemical, elemental and optical properties of as synthesized of ZnO thin films were studied using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy Energy dispersive X-ray (EDX) spectroscope and ultraviolet visible (Uv-Vis) spectroscopy, respectively. The hexagonal wurtzite structure of the ZnO nano-rod was confirmed by XRD analysis. The XRD and SEM analysis also confirmed the nano-structure of the as prepared ZnO thin films. FTIR spectra showed the chemical composition mainly functional groups present in the ZnO thin films. The EDS analysis ensured the the presence of zinc and oxygen elements in the films. Several optical constants, such as optical band gap, Urbach energy, steepness parameter, skin depth, etc were estimated with help of Uv-Vis spectra. Paper ID: Investigation of Optical, Structural and Morphological Properties of Gamma Irradiated Mg Doped nano-zno Thin Films Humayun Kabir, Sazzad Hossain, and Pooja Sarker Md Nasrul Haque Mia, and Mahbubul Hoq Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission Md Abdul Mannan Chowdhury Mg doped ZnO (MZO) thin films were prepared on glass substrates using sol-gel spin coating technique. The prepared MZO thin films were irradiated with gamma radiations, emitted from a cobalt (60Co) source, ranging from 0 to 100 KGy. The optical, structural and morphological properties of the irradiated films were analyzed by UV-Vis spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The absorption coefficient, skin depth and extinction coefficient of both the radiated and un-radiated MZO thin films were calculated and compared. The optical band gaps of the films were determined; the band gap was decreased with increasing gamma radiation dose. The hexagonal wurtzite structure was observed in all the prepared MZO thin films with a preferred orientation along the (002) plane. The gran size, dislocation density, interplanar distance, lattice constant, micro strain and lattice strain of the films were calculated, and their variations with increasing gamma radiation were studied. The surface roughness as well as the crystalline nature of the films were changed with the provided gamma radiation doses. The presence of O, Mg and Zn within the MZO thin films were confirmed through energy dispersive X-ray (EDX) studies. The controllable optical and structural properties of Mg doped ZnO (MZO) thin films are very important for their applications in solid state and optoelectronic devices. 74

93 Paper ID: Eigenmode analysis of spherical brain activity via neural field theory Kamrun Nahar Mukta, James Normand MacLaurin, and Peter Robinson Corticothalamic neural field theory (NFT) has successfully explained a wide variety of phenomena, ranging from EEG spectra and evoked potentials to nonlinear phenomena such as seizures and Parkinsonian oscillations. NFT has also been used to understand brain connectivities and its eigenmodes have been employed to solve the inverse problem of determining brain structure from functional connectivity. Most recently, its unihemisphericeigenmodes have been shown to be remarkably similar to spherical harmonics in structure. They are also the building blocks for bihemispheric modes, whose structure and symmetry properties explain many features of resting state and task-related activity. This eigenmode expansion is of use because it helps us understand the dynamics of the brain s activity in terms of its natural modes. Here, corticothalamic NFT is analyzed on a sphere and used to derive the transfer function, the power spectrum, the correlation function, and the cross spectrum in terms of spherical harmonics. The results are analyzed and compared with planar NFT in both finite and infinite geometries. The results of spherical and finite-planar geometries converge to the infinite-planar geometry in the limit of large brain size. The main effects of the spherical modal structure are explored, particularly to understand the number of modes that contribute significantly to these observable quantities and the effects of the finite spatial extent of the cortex. Key results are that when we truncate the modal series it is found that, for physiology plausible parameters, only the lowest few spatial eigenmodes are needed for an accurate representation of macroscopic brain activity. Cortical modal effects can lead to a double alpha peak structure in the power spectrum, although the main determinant of the alpha peak is corticothalamic feedback. In the spherical geometry, the coherence function between points decays monotonically as their separation increases at a fixed frequency, but persists further at resonant frequencies. The correlation between two points is found to be positive, regardless of the time lag and spatial separation, but decays monotonically as the separation increases at fixed time lag. At fixed distance the correlation has peaks at multiples of the period of the dominant frequency of system activity. This analysis of physiologically-based corticothalamic NFT in a spherical geometry will enable more realistic modeling and analysis of experimental brain signals in future. 75

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