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Agricultural Sciences 2015年第12期6卷 1538-1546页

作者： Abdul Hamid md. Jafar Ullah md. moynul haque md. Faruque H. Mollah md. Moksedur Rahman Agrarian Research Foundation Shekhertek Mohammadpur Dhaka Bangladesh Agronomy Department Sher-e-Bangla Agricultural University Dhaka Bangladesh Agronomy Department Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Coastal Ecosystem Unit Agrarian Research Foundation Barisal Bangladesh

Rice production in the tidal floodplain of southern Bangladesh is constrained by uncontrolled water. In absence of high yielding varieties suitable for tidal floodplain, farmers grow low yielding indigenous cultivars of tall plant type. This paper reports the effect of agronomic management on the yield and yield components of an indigenous rice cultivar, Sadamota. The trial was conducted in 10 farmers’ plots located widely apart in two upazila (sub-districts)—Jhalakati and Rajapur. 45 d and 60 d old seedlings were transplanted either in rows at 40 cm × 20 cm spacing or following farmers’ traditional practice of random planting. Transplanting 60 d old seedlings produced 14% higher yield compared with 45 d old seedlings. Transplanting in rows also increased grain yield by 12%. The yield increase was associated with hill density, the number of effective tillers per hill and the number of spikelets per panicle.

关键词： Rice Seedling Age Planting Method Tidal Floodplain Tillers Seedling Dry Weight Grain Yield

Growth, Yield and Nitrogen Use Efficiency of New Rice Variety under Variable Nitrogen Rates

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American Journal of Plant Sciences 2016年第3期7卷 612-622页

作者： md.Anamul haque M. moynul haque Department of Agronomy Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh

Globally, the current important concern is to minimize nitrogen use in crop culture under climate change condition. The experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during the rainy season of 2014 to assess growth, yield and nitrogen use efficiency of a new rice variety. The new rice variety (BUdhan 1) was treated with six levels of nitrogenous fertilizer in a randomized complete block design replicated three times. The nitrogen levels 0, 20, 40, 60, 80 and 100 kg N ha-1 constituted the treatment variables. Results revealed that growth of the new rice variety favored at higher levels of applied nitrogen although it flattened at 80 and 100 kg N -1. Preanthesis assimilates reserves contributed to sustaining the yield of the variety which indicated that current photosynthesis was insufficient to support the present yield level. The assimilate remobilization varied from 109.21 to 232.93 g·m-2 between the nitrogen levels where the maximum amount of remobilization was observed at 60 kg N -1. The highest grain yield (5.36 t·-1) was found when the variety was fertilized with 60 kg N -1. Application of 60 kg N -1 also showed the highest nitrogen use efficiency (344.50 kg grain/kg N applied) of the variety. We concluded that application of the intermediate level of nitrogen was economical and environment-friendly for the cultivation of new rice variety.

关键词： Rice Variety Growth Yield Nitrogen Use Efficiency

Oxidative Stress Tolerance Mechanism in Rice under Salinity

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Phyton-International Journal of Experimental Botany 2020年第3期89卷 497-517页

作者： Mahmuda Binte Monsur Nasrin Akter Ivy M.moynul haque Mirza Hasanuzzaman Ayman EL Sabagh md.Motiar Rohman Department of Genetics and Plant Breeding Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur1706Bangladesh Department of Agronomy Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur1706Bangladesh Department of Agronomy Sher-e-Bangla Agricultural UniversityDhaka1207Bangladesh Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafrelsheikh33516Egypt Department of Field Crops Faculty of AgricultureSiirt UniversitySiirt56100Turkey Molecular Breeding Lab Plant Breeding DivisionBangladesh Agricultural Research InstituteGazipur1701Bangladesh

The research was conducted to investigate comparative oxidative damage including probable protective roles of antioxidant and glyoxalase systems in rice(Oryza sativa L.)seedlings under salinity *** of two rice genotypes:Pokkali(tolerant)and BRRI dhan28(sensitive)were subjected to 8 dSm^(−1) salinity stress for seven days in a hydroponic *** observed significant variation between Pokkali and BRRI dhan28 in phenotypic,biochemical and mole-cular level under salinity *** content,ion homeostasis,antioxidant enzymes,ascorbate and glutathione redox system and proline accumulation may help Pokkali to develop defense system during salinity ***,the activity antioxidant enzymes particularly superoxide dismutase(SOD),catalase(CAT)and non-chloroplastic peroxidase(POD)were observed significantly higher in Pokkali compared to salt-sensitive BRRI *** glyoxalase(Gly-I)and glyoxalase(Gly-II)activity might have also accompanied Pokkali genotype to reduce potential cytotoxic MG through non-toxic hydroxy acids ***,the efficient antioxidants and glyoxalase system together increased adaptability in Pokkali during salinity stress.

关键词： Reactive oxygen species(ROS) antioxidants glyoxalase system salinity oxidative stress

Policy considerations on hurricane induced human displacement:Lessons from Cyclone Sidr and Hurricane Katrina

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Tropical Cyclone Research and Review 2022年第2期11卷 120-130页

作者： md.moynul Ahsan Nimet Ozbek Department of Real Estate Development and Management Faculty of Applied SciencesAnkara UniversityAnkaraTurkey Department of Political Science and Public Administration Faculty of Political SciencesAnkara UniversityAnkaraTurkey

Hurricane or Cyclone is an extreme environment and climate event that has both long-term and short-term impact,and produces environmental emergency *** study has focused on two devastating cyclone disaster events in the 21st century:Hurricane Katrina in 2005 in the USA and Cyclone Sidr in 2007 in *** using secondary-based research and comparative case study technique,this study focuses on different considerations of governmental policy approaches and responses such as encouraging displacement through resettlement or relocation planning,providing resilience-oriented practices or in-situ adaptation practices;discouraging migration by providing soft policies such as rapid response and distribution plan,insurance,tax policies,incentives *** Hurricane Katrina and Cyclone *** highlighting the above considerations,this study found that developing policy at national level as well as strategic and operational measures at state/local level,integrating rights,resilience and relocation issues with existing relevant policies and programs and active community-based preparedness programs can reduce human displacement from hurricane or cyclone disaster.

关键词： Hurricane induced displacement Government policy Coastal area Cyclone Sidr Hurricane Katrina

Measuring the Association of Overweight and Obesity with Human Disease and Other Factors in Bangladesh

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Open Journal of Statistics 2020年第3期10卷 402-411页

作者： md. Roshidul Islam md. Anamul haque Department of Statistics Begum Rokeya University Rangpur Bangladesh

Overweight and obesity in people are epidemic in North America and internationally. In the United States, the number of overweight children and adolescents has doubled in the last two to three decades, and similar increasing rates are being observed worldwide, including developing countries as Bangladesh where an increase in Westernization of behavioral and dietary lifestyles is evident. Human diseases associated with overweight and obesity are similar in children as in the adult population. The main purpose of this study was to examine the association between overweight and obesity with human disease and other factors in Bangladesh. We have attempted to estimate the relationship between associated variables by using the Pearson Chi-Square test. It also showed how important an individual variable is by itself. The study also employed a statistical technique namely, logistic regression analysis which has been used to find out the association of overweight and obesity with human disease and other factors. We have seen that 16.96% people are overweight

Constrained coordinated distributed control of smart grid with asynchronous information exchange

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Journal of Modern Power Systems and Clean Energy 2015年第4期3卷 512-525页

作者： Benjamin MILLAR Danchi JIANG md.Enamul haque School of Engineering&ICT University of TasmaniaHobartAustralia School of Engineering Deakin UniversityMelbourneAustralia

Smart grid constrained optimal control is a complex issue due to the constant growth of grid complexity and the large volume of data available as input to smart device *** this context,traditional centralized control paradigms may suffer in terms of the timeliness of optimization results due to the volume of data to be processed and the delayed asynchronous nature of the data *** address these limits of centralized control,this paper presents a coordinated,distributed algorithm based on distributed,local controllers and a central coordinator for exchanging summarized global state *** proposed model for exchanging global state information is resistant to fluctuations caused by the inherent interdependence between local controllers,and is robust to delays in information *** addition,the algorithm features iterative refinement of local state estimations that is able to improve local controller ability to operate within network *** of the proposed coordinated,distributed algorithm through simulation shows its effectiveness in optimizing a global goal within a complex distribution system operating under constraints,while ensuring network operation stability under varying levels of information exchange delay,and with a range of network sizes.

关键词： Smart grid Distributed optimization Demand-side management Distributed generation Distributed storage Approximate dynamic programming

Plasma-Assisted Antimicrobial Finishing of Textiles: A Review

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Engineering 2022年第5期8卷 145-163页

作者： Maryam Naebe Abu Naser md.Ahsanul haque Aminoddin Haji Deakin University Institute for Frontier MaterialsGeelongVIC 3216Australia Textile Engineering Department Yazd UniversityYazd 89138-75639Iran

Owing to the ongoing pandemic,the importance of and demand for antimicrobial textiles have reached new *** addition to being used for medical purposes,antimicrobial textiles could be a self-defense entity against microbes for the general *** textiles are widely used,they can effectively be used to prevent the spread of microbes *** conventional antibacterial finishing process of textiles is the wet treatment method using either the pad–dry–cure or exhaustion ***,the textile wet treatment industries are major contributors to worldwide pollution,which is extremely *** the current and near-future high demand,it is imperative to include plasma in antimi-crobial finishing to achieve high efficiency in production,while retaining a safe ***,this paper reviews the rationale of plasma use in textile antimicrobial finishing through a critical analysis of recent studies and emphasizes the types and mechanisms of plasma techniques available for application.

关键词： Plasma Grafting Polymerization Sputtering Nanomaterials Antimicrobial

Nonlinear anisotropic finite element analysis of liquefiable tunnel–sand–pile interaction under seismic excitation

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Deep Underground Science and Engineering 2023年第3期2卷 275-285页

作者： md.Foisal haque Department of Civil Engineering Bangladesh University of Engineering and TechnologyDhakaBangladesh

Nonlinear time‐history analysis can be used to determine the liquefiable behaviors of the tunnel-sand-pile interaction(TSPI)model with the consideration of sand *** study presents the nonlinear response of the TSPI model with the existence of liquefaction under seismic *** analysis reveals that tunnel and pile behave as isotropic elements,while sand shows isotropic,orthotropic,and anisotropic *** constitutive models including UBC3D‐PLM(two yield surfaces associated with the hardening rule),NGI‐ADP(yielding with associated plastic potential function),and a user‐specified constitutive model are adopted to evaluate the isotropic,orthotropic,and anisotropic behaviors of *** this basis,two finite element‐based codes(ETABS 18.1.1 and Plaxis 3D)are used to evaluate sand behaviors and *** of the tunnel,sand,pile,and excess pore pressure ratio are recorded in the interaction zone by varying the pile diameter,tunnel diameter,and tunnel-pile *** with the orthotropic and isotropic conditions,lower variations of results are found in the anisotropic condition,except for the case of generation of excess pore *** addition,the present reanalysis results are in agreement with previous analytical and case study results,which further indicates the effectiveness of the finite element‐based numerical codes.

关键词： anisotropy finite element liquefaction nonlinear seismic excitation tunnel-sand-pile interaction

SCOUR MITIGATION AT BRIDGE PIERS USING SACRIFICIAL PILES

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International Journal of Sediment Research 2007年第1期22卷 49-59页

作者： M. Anisul haque md. Munsur RAHMAN G.M. Tarekul ISLAM M. Asad HUSSAIN Prof.Institute of Water and Flood Management (IWFM) Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh Assoc. Prof.Institute of Water and Flood Management (IWFM) Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh Lecturer Institute of Water and Flood Management (IWFM) Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh

To mitigate scour around bridge piers, sacrificial piles are economic method where natural processes are involved. The arrangement should be such that scoured materials from the sacrificial piles should have enough volume to fill the scour hole created upstream of the pier in such a way that sediments are trapped inside the scour hole. This concept differs from earlier study made with sacrificial piles that mainly deals to reduce the strength of horseshoe vortex. To determine the effect of sacrificial piles for scour mitigation, alternative arrangements of piles were tested in front of a rectangular pier under clear-water condition and found that when the group of piles is placed at a distance of twice the projected width of the pier, for which percentage of blockage of the pier width is 60%, the scour volume can be reduced upto 61% while the maximum scour depth can be reduced upto 50%.

关键词： Scour mitigation Bridge pier Sacrificial pile Optimum arrangement

Efficient Finite Difference Methods for the Numerical Analysis of One-Dimensional Heat Equation

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Journal of Applied Mathematics and Physics 2023年第10期11卷 3099-3123页

作者： md. Shahadat Hossain Mojumd.r md. Nazmul haque md. Joni Alam Department of Mathematics Comilla University Kotbari Bangladesh Department of Mathematical Sciences Kent State University Kent OH USA

In this paper, we investigate and analyze one-dimensional heat equation with appropriate initial and boundary condition using finite difference method. Finite difference method is a well-known numerical technique for obtaining the approximate solutions of an initial boundary value problem. We develop Forward Time Centered Space (FTCS) and Crank-Nicolson (CN) finite difference schemes for one-dimensional heat equation using the Taylor series. Later, we use these schemes to solve our governing equation. The stability criterion is discussed, and the stability conditions for both schemes are verified. We exhibit the results and then compare the results between the exact and approximate solutions. Finally, we estimate error between the exact and approximate solutions for a specific numerical problem to present the convergence of the numerical schemes, and demonstrate the resulting error in graphical representation.

关键词： Explicit Scheme Implicit Scheme C-N Scheme CFL Condition