Analyzing and developing the micro credit system provided by BRAC

This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Computer Science and Engineering, 2005.Cataloged from PDF version of thesis report.Includes bibliographical references (page 97).The goal of the thesis is to develop a software tool, which is capable of storing all the information of loan holder and loan giving scheme, the criteria and constrains of giving loans. We plan to focus on analysis and design of the existing system. A user provides the data of the members along with specifications. The software is responsible for finding a solution. The difficulty of this research project is in designing an effective method to resolve the entire loan scheme and to come up with a properly compensated systemMohammad Salah UddinB. Computer Science and Engineerin

Gender Differences in Undergraduate Physics Courses: A Comparative Study of Persistence

We have investigated the difference in persistence between male and female students while taking undergraduatephysics courses. To quantify the persistence of a certain group of students, we have defined 'persistence index' as the inverseof the decrease rate of the number of that group of students while taking a specific course. We have collected the data fromthree consecutive workshops on various topics of physics. After plotting the number of participations against the number ofdays attended, we have calculated the decrease rates and persistence indices for both male and female student groups on eachworkshop and compared the persistence indices on a bar diagram. The comparative statistics show that the persistence indicesof female student groups are significantly higher than that of male student groups. This leads us to the conclusion that thefemale students are more persistent than male students while taking an undergraduate physics course.Comment: The article is accepted by Science Journal of Education and will be published in Feburary 2017, Science Journal of Education, Science Publishing Group, 201

International Trade and Carbon Emissions (CO2): The case of Bangladesh

The relationship between the environmental problems and international trade has been subject of considerable debate over these years. There are little knowledge and agreement on the nature of interactions among the international trade, environmental quality and development process.  This paper deals with the assessment on the intensity of the relationship between the international trade and environmental pollution regarding the carbon (CO2) emissions of a developing country, Bangladesh. The paper deals with the exploration of the situation only and consequently draws attention on the environmental regulations without causing harm to international relation. The flow and essence of the paper have been drawn from the empirical analyses of the data of 32 years (1976 – 2008). Sector wise scenario has been explored to understand the situation more clearly. Keywords: International trade, Carbon (CO2) emissions, Sustainable Development, International Relation, Environmental Regulatio

The Efficacy of Deep Learning-Based Mixed Model for Speech Emotion Recognition

Human speech indirectly represents the mental state or emotion of others. The use of Artificial Intelligence (AI)-based techniques may bring revolution in this modern era by recognizing emotion from speech. In this study, we introduced a robust method for emotion recognition from human speech using a well-performed preprocessing technique together with the deep learning-based mixed model consisting of Long Short-Term Memory (LSTM) and Convolutional Neural Network (CNN). About 2800 audio files were extracted from the Toronto emotional speech set (TESS) database for this study. A high pass and Savitzky Golay Filter have been used to obtain noise-free as well as smooth audio data. A total of seven types of emotions; Angry, Disgust, Fear, Happy, Neutral, Pleasant-surprise, and Sad were used in this study. Energy, Fundamental frequency, and Mel Frequency Cepstral Coefficient (MFCC) have been used to extract the emotion features, and these features resulted in 97.5% accuracy in the mixed LSTM+CNN model. This mixed model is found to be performed better than the usual state-of-the-art models in emotion recognition from speech. It also indicates that this mixed model could be effectively utilized in advanced research dealing with sound processing

Institutional Mechanism of National Identification Card: Bangladesh Experience

National ID card as a legal identity promises a host of goods that have tremendous potential to improve people’s lives. National ID cards are touted to provide greater access to services, benefits, and opportunities; greater protection of human rights and security; a more legitimate and equitable distribution of public resources. Seventy-nine million National ID cards (NID) were distributed to Bangladeshi citizens as part of the 2007/2008 voter registration process. The cards served as a powerful incentive for voters to come to registration centers.  During the voter registration process the Bangladesh Election Commission declared that the ID cards would be needed for 22 public and private services. Now, NID cards are making an impact on the daily life of Bangladeshis despite the fact that their legal status remains unclear, as Parliament has not passed the National Identities Registration Authority (NIRA) Ordinance. This study tempted to discuss about the experience of Institutional Mechanism of NID. The experiences of two countries (Ghana and Pakistan) have been discussed as a case study also to find the missing point of Bangladesh. It seems that with the legal status sound mechanism of ID, user friendliness, updating procedure, protection of duplicate registration and well equipped infrastructure is required to attain the deserved outcome from NID. Keywords: National ID card, Institutional Mechanism, Citizens’ Information, Effectivenes

An investigation of carbon sequestration/ECBM potential in Australian coals: a simulation study for Sydney Coal Basin

A 2002 report by Australian National Greenhouse Gas Inventory suggests that since 1990 Australia's net emissions of carbon dioxide equivalent from stationary combustion sources are on the rise and they are likely to rise even at a higher rate in keeping with continued economic and industrial growth. In order to reduce Australian CO₂emissions, there is a need to identify and explore large-capacity storage locations for CO₂ sequestration. In that context, Australian coal seams, notably the coal-bed methane (CBM) reservoirs in Sydney and Bowen Basins, could potentially be attractive sites to sequester large volumes of greenhouse CO₂ emissions while also recovering the methane gas, a relatively cleaner source of fossil fuel. This study investigates the deliverability and economic feasibility of CO₂ sequestration through CO₂-Enhanced CBM recovery (CO₂-ECBMR) in the Camden area, Sydney coal basin. The results of the study show that the CO₂-ECBMR impacts the absolute pelmeability of the Camden area significantly. Because of a good reticulated fracture system, the CO₂ breakthrough from the producers is faster. The enhancement of CH₄ recovery by preferential adsorption of CO₂ occurs simultaneously with the abatement of CH₄ recovery by overall decrease in permeability in the CBM reservoir. Hence, the actual CH₄ is produced under the overall effect of these two competing processes, with the operating parameters like producer-injector spacing and injection pressure affecting their relative dominance over each other. The study also addresses the opportunities of a niche for CO₂ sequestration in these coals, which will be dictated mainly by the factors of sequestration economics and status of these coals being "unmineable". The results derived from the study could help the design of an optimum operating strategy in implementing the CO₂ sequestration and enhanced CBM recovery in Sydney Basin, Australia and elsewhere.Thesis (Ph.D.) -- University of Adelaide, Australian School of Petroleum, 200

Depulping of fruits and soaking the seeds enhances the seed germination and initial growth performance of Terminalia beleria Roxb. seedlings

The study describes the effects of depulping the fruits and soaking the seeds of Terminalia belerica Roxb. on seed germination and seedling growth in nursery condition. Around half of the freshly collected fruits of T. belerica were depulped by rotting the fleshy pulp in water. Depulped seeds or intact fruits were dried in sun following storage in airtight container. Effects pre-sowing treatments were explored by soaking the dry intact fruits or depulped seeds in cold water for 0, 24, 48 and 72 h and sowed in polybags filled with soil mixed with decomposed cow dung. The study revealed that depulping of fruits and soaking the seeds significantly enhanced the seed germination and seedling growth performance in nursery condition. The fastest seed germination was observed in depulped seeds soaked in cold water for 72 h (DT3) and slowest germination was in intact fruits without treatment (IT0). The highest germination percentage (93) was observed in depulped seeds soaked in cold water for 48 h (DT2) followed by 85.6% in depulped seeds soaked in water for 24 h (DT1), which was significantly higher than the other treatments including the control (36.7). Although growth parameters such as shoot length, root length, total height, leaf number, leaf area and collar diameter of the seedlings were maximum in the seedlings developed through DT3, the vigor index was maximum in DT2 and minimum in IT0. Total dry mass per seedling was also maximum in the seedlings developed from the treatment DT3. Considered the imbibition period, germination percentage, growth performance including vigor index and total biomass produced per seedling, depulping the fruits and soaking the dry seeds in cold water for 48 h was recommended for obtaining maximum seed germination and seedling growth performance

Enhancing seed germination and seedling growth attributes of a medicinal tree species Terminalia chebula through depulping of fruits and soaking the seeds in water

Terminalia chebula (Gaertn.) Retz. is an important medicinal tree species in the Asian countries. Large scale planting program for the species is often difficult due to its limited seed germination capacity and longer germination period in the natural conditions. This study describes various pre-sowing treatments attributed to the seed germination and seedling growth of T. chebula. A total of 1200 fruits were subjected to various treatments of which 600 were depulped by rotting the fleshy pulp in water while rests were kept intact and dried followed by their storage in airtight containers until setting up for the experiments. The effects of depulping and soaking period (0, 24, 48 and 72h) on seed germination and seedling growth performance were explored. The fastest seed germination and highest germination percentage (73.8%) was observed in depulped seeds soaked in cold water for 48 h followed by 72 h and delayed germination with lowest percentage was in intact fruits without treatment. Growth parameters including shoot length, root length, total height, leaf number, leaf area, collar diameter, dry mass and vigor index were also maximum and significantly higher in the same treatment compared to others. Considering the practicability of the nursery raising technique for the species, the best treatment option obtained in this study was depulping the fruits and soaking the seeds in cold water for 48h which could be useful for large scale plantation programs. Introduction Medicinal plants play vital roles in healing various diseases throughout the world since time immemorial. Medicinal plants are now being used by Unani and Ayurvedic practitioners as well as by the common people to heal ailments at home. Plants with medicinal properties can also provide raw materials for downstream processing operations in the pharmaceutical industries

An Innovative Compact Split-Ring-Resonator-Based Power Tiller Wheel-Shaped Metamaterial for Quad-Band Wireless Communication

A split-ring resonator (SRR)-based power tiller wheel-shaped quad-band "-negative metamaterial is presented in this research article. This is a new compact metamaterial with a high effective medium ratio (EMR) designed with three modified octagonal split-ring resonators (OSRRs). The electrical dimension of the proposed metamaterial (MM) unit cell is 00.086λ × 0.086λ, where λ is the wavelength calculated at the lowest resonance frequency of 2.35 GHz. Dielectric RT6002 materials of standard thickness (1.524 mm) were used as a substrate. Computer simulation technology (CST) Microwave Studio simulator shows four resonance peaks at 2.35, 7.72, 9.23 and 10.68 GHz with magnitudes o