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Islam, Md. Monirul,Nipa, Tanjila Akter,Islam, Md. Sofiqul,Hasan, Mahmudul,Khan, Makidul Islam The Korean Society of Fisheries and Aquatic Scienc 2022 Fisheries and Aquatic Sciences Vol.25 No.4
Loss and damage have become a vital contemporary issue in climate change studies and actions in developing countries. However, studies are scant on this in the fisheries sector around the world. In Bangladesh, there is no study on the loss and damage in fisheries dependent communities. This study assesses economic and non-economic loss and damage to coastal shrimp farms due to cyclone Bulbul in Gabura Union of Shyamnagar Upazila, Satkhira district, using a mixed method approach. Results show that all shrimp farms' dependent communities are affected by cyclone Bulbul to some extent. About 14%, 57%, and 29% of the farms were totally, heavily and moderately damaged due to farm inundation and dyke damage. The estimated mean loss and damage per shrimp farm was worth USD 4,633. Around 31% and 72% of the farms' fencing nets and traps were lost, which was worth USD 333 per farm. There were also loss and damage to other resources such as houses, solar panels, livestock and agricultural crops where the estimated mean loss and damage per household was worth USD 3,170. This study reported that the rich shrimp farmers encountered proportionately more economic loss and damage than their poor counterparts. However, this does not mean that the poor suffered less. The current study found a range of non-economic loss and damage in different aspects of the shrimp farmers' household members such as unbearable mental pain, deterioration of health, physical injuries, disabilities, etc. and access to services (e.g., inadequate food, lack of safe drinking water, lack of medical facilities, disruption of education systems), social infrastructure (e.g., damage of roads and markets) and disturbance of cultural functions. The findings suggest that urgent short- and long-term actions may be taken to save the aquaculture farms and dependent livelihoods from economic and non-economic loss and damage to cyclones in future.
Synthesis and Characterization of Branched Bisphenol-A Polycarbonates Functionalized with Siloxane
Md. Monirul Islam,김환기,서동완,장호현,임영돈,신경무 한국고분자학회 2011 Macromolecular Research Vol.19 No.12
Branched and grafted silicone polycarbonates were synthesized from branched allyl polycarbonate (Br-Allyl-PC) precursors and siloxanes by a controlled hydrosilylation reaction using Karstedt’s catalyst. The Br-Allyl-PCs were synthesized using a bisphenol-A (BPA) based linear oligomer and 3,3',3''-triallyl-1,1,1-tris(4-hydroxyphenyl)ethane (triallyl-THPE) through an interfacial polymerization process. Triallyl-THPE consisted of reactive tri-phenoxy and tri-allyl functional groups. The effects of the branching concentration and grafting chain length were examined. The branched grafted silicone polycarbonates (BrSi-PC) and their active precursors (Br-Allyl-PC)showed different thermal properties compared to bisphenol-A polycarbonate (BPA-PC) or linear polycarbonate. BrSi-PC also exhibited superior flow properties, better thermal stability, lower wettability and a different surface morphology compared to those of their precursors, BPA-PC, and branched polycarbonate.
Monirul Islam Miskat,Ashfaq Ahmed,Md Salman Rahman,Hemal Chowdhury,Tamal Chowdhury,Piyal Chowdhury,Sadiq M. Sait,Young-Kwon Park 대한환경공학회 2021 Environmental Engineering Research Vol.26 No.6
Current environmental catastrophes generating from fossil fuel power generation has attracted the attention of energy planners to look for sustainable energy sources. Hydropower is one of the oldest energy sources that have been utilized all over the world to generate electricity, especially in remote areas. Being one of the most densely populated countries, the majority of power demand is fulfilled from fossil fuel. Despite having lots of rivers, Bangladesh has not explored its true potential. So, this paper presents a comprehensive review of the current hydropower potential in Bangladesh. Locations having hydropower potential is evaluated. Different technologies used for hydropower generation have been reviewed. Moreover, global hydropower potential has also been discussed in this study. Based on the economic and environmental study, it is found that small scale hydropower is most feasible in Bangladesh to provide sustainable energy. With a reasonable flow rate, 232 rivers of Bangladesh can be utilized small scale hydropower generation as well as ensuring energy security for remote people. The current study is believed to provide useful information in advancing the generation of hydropower based electricity in Bangladesh.
Developing a Framework for Determining Student Excellence and Recommending a Field of Study
Md. Osman Goni,Mohammad Shamsul Arefin,Md. Monirul Islam 한국산학기술학회 2015 SmartCR Vol.5 No.6
A recommendation system is a software tool that helps in decision making. A recommendation system can save time and effort for users and can guide them in the proper direction to make the right decision. Most students in developing and underdeveloped countries choose their field of study blindly, without considering their skillfulness. The selection of their subjects is often influenced their parents, friends or different socio-economic factors. This creates a huge problem for the students during their academic studies, and in many cases, they cannot do well in their chosen field. Considering this fact, in this paper, we provide a framework for identifying student excellence and for recommending the most suitable field of study for them. We perform different experiments to show the effectiveness of our system. From the experimental results, we found that our system can guide students in efficiently selecting their field of study.
An overview of the hydropower production potential in Bangladesh to meet the energy requirements
Monirul Islam Miskat,Ashfaq Ahmed,Md Salman Rahman,Hemal Chowdhury,Tamal Chowdhury,Piyal Chowdhury,Sadiq M. Sait,Young-Kwon Park 대한환경공학회 2021 Environmental Engineering Research Vol.26 No.6
Current environmental catastrophes generating from fossil fuel power generation has attracted the attention of energy planners to look for sustainable energy sources. Hydropower is one of the oldest energy sources that have been utilized all over the world to generate electricity, especially in remote areas. Being one of the most densely populated countries, the majority of power demand is fulfilled from fossil fuel. Despite having lots of rivers, Bangladesh has not explored its true potential. So, this paper presents a comprehensive review of the current hydropower potential in Bangladesh. Locations having hydropower potential is evaluated. Different technologies used for hydropower generation have been reviewed. Moreover, global hydropower potential has also been discussed in this study. Based on the economic and environmental study, it is found that small scale hydropower is most feasible in Bangladesh to provide sustainable energy. With a reasonable flow rate, 232 rivers of Bangladesh can be utilized small scale hydropower generation as well as ensuring energy security for remote people. The current study is believed to provide useful information in advancing the generation of hydropower based electricity in Bangladesh.
Hossain, Md. Awlad,Lim, Young Don,Seo, Dong Wan,Lee, Soon Ho,Lee, Hyun Chul,Jang, Ho Hyoun,Islam, Md. Monirul,Kim, Whan Gi Trans Tech Publications, Ltd. 2012 Materials science forum Vol.724 No.-
<P>Sulfonated poly (diphenyl ether ketone sulfone) s, SPDPEKSs were successfully synthesized for proton exchange membranes (PEMs). Poly (diphenyl ether ketone sulfone) s, PDPEKSs were prepared by the polycondensation of 4,4'-sulfonyldiphenol with 1,2-bis (4-fluorobenzoyl)-3,6-diphenylbenzene (BFBDPB) and 4-fluorophenylsulfone respectively, at 210 °C using anhydrous potassium carbonate as catalyst in sulfolane. PDPEKSs were followed by sulfonation using chlorosulfonic acid and concentrated sulfuric acid at two step reactions. Different contents of sulfonated unit of SPDPEKS (25, 35, 45 mol% of BFBDPB) were studied by FT-IR, <SUP>1</SUP>H NMR spectroscopy, and thermogravimetric analysis (TGA). The ion exchange capacity (IEC), water uptake and proton conductivity of SPDPEKS were evaluated with increase of degree of sulfonation.</P>
NEW FORM OF NJÅSTAD'S α-SET AND LEVINE'S SEMI-OPEN SET
Modak, Shyamapada,Islam, Md. Monirul Chungcheong Mathematical Society 2017 충청수학회지 Vol.30 No.2
This paper gives an extensive study of ideal topological space and introduce two new types of set with the help of local function. Several characterizations of these sets will also be discussed through this paper and finally gives new representation of ${\alpha}$-sets and semi-open sets.
고분자 전해질 막 연료전지를 위한 Bisphenol-TP를 포함한 Poly(ether sulfone)s 고분자 막의 합성과 특성
임영돈,서동완,이순호,Md. Monirul Islam,강다립,김환기 한국수소및신에너지학회 2010 한국수소 및 신에너지학회논문집 Vol.21 No.4
Poly (ether sulfone)s with Bisphenol-TP and Bisphenol-AF <PBTP-AF> were prepared with Bisphenol-TP <4,4-dihydroxy tetraphenyl methane>, 4-Fluorophenyl sulfone, and Bisphenol-AF <4,4-(hexafluoroisopropylidene)diphenol> using Potassium carbonate in Sulfolane <Tetramethylene sulfone> at 210℃. Sulfonated PBTP-AF were obtained by reaction of Chlorosulfuric acid with copolymers. A series of copolymers were studied by 1H-NMR spectroscopy, Differential Scanning Calorimeter (DSC), and Thermo Gravimetric Analysis (TGA). Sorption experiments were conducted to observe the interaction of polymers with water and methanol.
Mia Shamim,Ahmed Nasar Uddin,Islam Mohammad Zahidul,Rashad Md. Mainul Islam,Islam Md. Monirul,Zaman A. K. M. Mostafa 한국작물학회 2022 Journal of crop science and biotechnology Vol.25 No.2
Understanding genetic diversity of rice helps to improve its yield. Although many landraces of rice are grown in the coastal area of Bangladesh, their diversity has not been studied. Here, we report a comparison of 163 landraces of T. Aman rice. Data on diferent agronomic characters were collected while analysis of variance (ANOVA), Pearson’s regression, principal component analysis (PCA) and cluster analysis were performed. In addition, yield of local landraces was compared to modern cultivars using meta-analysis. Our results showed that the yield of local rice of this study was higher than both HYV and local rice grown in the farmers’ feld. Furthermore, landraces with longer plant height and heavier grain provided signifcantly higher yield. According to PCA, the highest contributing variables were the number of tillers per hill and plant height. Canonical variate analysis revealed that plant height and grain length–breadth ratio were major contributors in creating divergence. In the generalized distance (D2 ) and cluster analysis, landraces were split into fve diverse clusters with many sub-clusters. Considering overall diversity pattern, it is evident that a good number of T. Aman rice landraces can be used in future improvement programs for assembling many benefcial traits and increasing yield of rice.