Browsing by Author "Mohammad, Nur"

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A Spatiotemporal Analysis and Forecasting of Electricity Generation-Mix in Bangladesh
(EWU, 3-May-2019) Barua, Sujoy; Nath, Anik; Shahriyar, Fahim; Mohammad, Nur
An analysis is presented to show time series data
A Survey of Cross Country Generation Mix – Opportunities and Challenges: Bangladesh, Australia, and the U.S.A. Perspectives
(Faculty of Electrical and Computer Engineering, CUET, 7-Feb-2019) Barua, Moon; Mohammad, Nur; Mutsuddy, Shantanu; Razak, Mohammad Abdur
Optimal electricity generation mix profile is one
An Effective Combination of Microcontroller and PLC for Home Automation System
(EWU, 3-May-2019) Hanif, Mohammad; Mohammad, Nur; Harun, Bijoy
In this paper, a smart home automation system is
An Outlook over Electrical Energy Generation and Mixing Policies of Bangladesh to Achieve Sustainable Energy Targets -Vision 2041
(Faculty of Electrical and Computer Engineering, CUET, 7-Feb-2019) Hasan, Md. Kamrul; Mohammad, Nur
This paper presents an outlook on the power
Antimicrobial Residue (AMR) in cattle Meat in Chattogram Metropolitan Area, Chattogram, Bangladesh
(Chattogram Veterinary & Animal |Sciences University, 2012-02) Mohammad, Nur
Antimicrobials are administered in food animals for two purpose; therapy against bacterial pathogens and for promoting muscle development. Residues of these substances may remain in meat and may pose a real threat to the consumer either through exposure to the residues, transfer of antibiotic resistance or allergy risk. This has exerted a great concern among researchers, clinicians and consumers worldwide. The present study was conducted for the detection of antibacterial residues in cattle muscle and liver. Thin Layer Chromatography (TLC) method was used for detection of the presence of Oxytetracycline, Amoxicillin, Ciprofloxacin, Gentamycin and Cephalosporine residues in muscle and liver tissues. Samples (N=50) of cattle meat (muscles and liver) were collected from different market of Chattogram Metropolitan Area during the period of February, 2019 to March, 2019. The samples were extracted with trichloroacetic acid (30%), diethyl ether, followed by detection in pre-coated TCL paper on UV detector. Antibiotic residues were detected in 10% cattle meat. The residues of oxytetracycline were found in 4% of liver sample and 2% of muscle sample. Observance of withdrawal period, active surveillance, modern analytical techniques and expert for residue analysis, monitoring and control on the use of veterinary drugs are highly recommended for public health safety
Automated railway signaling system
(Department of Technical and Vocational Education (TVE), Islamic University of Technology (IUT), 2014-11-15) Mohammad, Nur; Al - Mamun, Md.
The railroad industry’s own desire to maintain their ability to provide safe and secure transport of their customers hazardous materials, has introduced new challenges in rail security. Addressing these challenges is important, as railroads, and the efficient delivery of their cargo, play a vital role in the economy of the country. The present project is designed to satisfy the security needs of the railways. This system provides the security in four ways: automatic gate opening/closing system at track crossing, signaling for the train driver, tracking the signals, and the track protection. The automatic gate opening/closing system is provided with the Reflection sensors placed at a distance of few kilometers on the both sides from the crossing road. These sensors give the train reaching and leaving status to the embedded controller at the gate to which they are connected. The controller operates (open/close) the gate as per the received signal from the Reflection sensors. The train driver always observes the signals placed beside the track. These signals are controlled from the control room. The green light denotes that the track is free and red light denotes the track is busy or damaged. These signals are controlled based on the train position which is sensed by using the Reflection sensors placed along the track. The position of the train can be estimated by using the Reflection sensor placed along the track and is displayed on the control room to indicate the train position along the track. The track protection is achieved by providing the closed loop along the track. If any crack or cut is occurred to the track simultaneously the same happens to the closed loop. This gives a signal to the controller at the control room. From control room we can give the red signal by knowing the position of the train through the Reflection sensors.
Contribution of Grameen Bank Microcredit Program for the Socio-economic Development of Rural Poor Women
(Daffodil International University, 2020-01-04) Mohammad, Nur
The Grameen Bank is a self-sustainable microcredit institution that helps to alleviate poverty by offering small loans to the poorest people in Bangladesh. The Bank aids poverty reduction by targeting villagers who are victims of debt cycles created by village loan sharks and overlooked by commercial lenders. Microcredit programs have positive socioeconomic impact on rural women borrowers of Bangladesh. 66% respondents said their economic condition developed than the past, 6% respondents said their social status increased, 20% respondents said they are being self- sufficient and 8% respondents said their lifestyle developed than the past. 48% respondents said they live in their own house, 36% respondents said they live in the rent house, 8% respondents said they live in other relatives shelter and 8% respondents said they live in governments property. Here 64% respondents said they go to the government hospital for treatment, 20% respondents said the go to the NGO clinic for treatment, 8% respondents said they go to the Herbal doctor and 8% respondents said they go to the privet clinic for treatment. 52% respondents said they get home loan from Grameen Bank. 36% respondents said they get education loan and 12% respondents said they have person scream in the Grameen Bank. In this study, 34% respondents said they have the freedom of decision making, 20% respondents said they have freedom of speech, 40% respondents said now they are self- sufficient and 6% respondents said now they are getting priority in their family. Here more than 90% respondents said they send their children to the school and 10% respondents said they don’t send their children to the school. Only 16% respondents said they loan borrow loan from other organization beside Grameen Bank. But more than 84% respondents said they didn’t borrow any loan from other organizations.
Converter based Frequency Adjustment and Protection of Grid-tied Wind Farm
(EWU, 3-May-2019) Ahmad, Kanij; Mohammad, Nur; Quamruzzaman, Muhammad
Frequency adjustment and protection of a wind
Converter Based Frequency Adjustment and Protection of Grid-tied Wind Farm
(1st International Conference on Advances in Science, Engineering and Robotics Technology 2019, IEEE, 2019-12-19) Ahmad, Kanij; Mohammad, Nur; Quamruzzaman, Muhammad
Frequency adjustment and protection of a wind turbine due to wind gust is a salient aspect of the grid-tied wind farm. Both of them require conserving system stability. This paper presents an investigation of the converter based frequency adjusting method and wind turbine protection. A grid-tied wind power system model using the Doubly Fed Induction Generator in MATLAB is used. To regulate the active power output, synchronization between wind velocity and wind turbine speed is adjusted. Thus, wind farm operated at grid frequency and maximize turbine output. The control strategy of the converter based frequency synchronization of a grid-tied wind farm also includes protection subsystem. The protection system executed by receiving information from the logical block implemented in the wind farm model. It provides wind turbine protection by terminating wind turbine from a grid in abnormal wind conditions. The Simulation result validates the results and control methods.
Determination of Satisfaction Level of Electrical and Electronic Engineering Students of Southeast University
(Universidad de Alcala, College of Education, Madrid, Spain, 2018-10-31) Bhuyan, Muhibul Haque; Mohammad, Nur; Islam, Md. Rumanul; Noman, Md. Abdulla Al
Electrical and Electronic Engineering (EEE) Department of Southeast University considers student opinion as an essential component of the continuous quality improvement process of the programme offered by the department. In this view, a survey form was designed to identify six broad categories of the factors that determine the student satisfaction level. In each category, several questions were included to rate their level of satisfaction with each factor. The main focusing areas were quality of learning environment, academic strengths, campus life, physical facilities, management, and leadership, as well as extra- and co-curricular activities of the department. Responses were taken on a five-point Likert scale for each question. Sample sizes were chosen based on the Krejcie and Morgan formula from the group of 580 registered existing students of the EEE department of Southeast University. Finally, the collected data were analyzed to determine the satisfaction level of EEE students studying at Southeast University.
Determination of Satisfaction Level of Electrical and Electronic Engineering Students of Southeast University
(Universidad de Alcala, College of Education, Madrid, Spain, 2018-10-31) Bhuyan, Muhibul Haque; Mohammad, Nur; Islam, Md. Rumanul; Noman, Md. Abdulla Al
Electrical and Electronic Engineering (EEE) Department of Southeast University considers student opinion as an essential component of the continuous quality improvement process of the programme offered by the department. In this view, a survey form was designed to identify six broad categories of the factors that determine the student satisfaction level. In each category, several questions were included to rate their level of satisfaction with each factor. The main focusing areas were quality of learning environment, academic strengths, campus life, physical facilities, management, and leadership, as well as extra- and co-curricular activities of the department. Responses were taken on a five-point Likert scale for each question. Sample sizes were chosen based on the Krejcie and Morgan formula from the group of 580 registered existing students of the EEE department of Southeast University. Finally, the collected data were analyzed to determine the satisfaction level of EEE students studying at Southeast University.
Electric Power Generation-Mix for Bangladesh and Its Future
(Faculty of Electrical and Computer Engineering, CUET, 7-Feb-2019) Nath, Anik; Barua, Sujoy; Mohammad, Nur
Bangladesh is a developing country and over
Optimal Energy Mix and Operation Cost in the Presence of Nuclear and Solar PV Generation
(Faculty of Electrical and Computer Engineering, CUET, 7-Feb-2019) Hossain, Showkat; Rahaman, Mufrad; Tasnim, Israt; Mohammad, Nur
This paper investigates electrical energy mix and
Optimization of Thermostatically Controlled Appliances to Minimize Energy Consumption Cost Based on Real-Time Pricing
(2021 2nd International Conference for Emerging Technology (INCET) Belgaum, India., 23-May-2021) Mohammad, Nur; Rahman, Abid Ur; Nandy, Aninda
An optimization model for residential users to
Perspectives and pathways to a Carbon-free Advanced Power Network (CAPN) in Bangladesh for sustainable development
(Cleaner Energy Systems, 2025-01-13) Shufian, Abu; Md Tanvir, Rahman; Shib, Sowrov Komar; Dipto, Durjoy Roy; Kabir, Shaharier; Fattah, Shaikh Anowarul; Mohammad, Nur; Mannan, Mohammad Abdul
The twenty-first century is marked by an urgent need to combat global warming and environmental degradation, primarily driven by the extensive use of fossil fuels for energy production over the past two centuries. As the world faces the severe consequences of climate change, the transition to renewable energy (RE) has become a critical focus of sustainable development strategies. Renewable energy sources (RES) such as solar, wind, and biomass are not only environmentally friendly but also essential for achieving long-term energy security and economic stability. The importance of RE is underscored by the United Nations Sustainable Development Goals (SDGs), particularly SDG-7, which aims to ensure access to affordable, reliable, sustainable, and modern energy for all. SDG-7 highlights the necessity of increasing the share of RE in the global energy mix, improving energy efficiency, and promoting international collaboration to enhance clean energy research and technology. This research explores how Bangladesh can achieve a 100 % reliable and adaptable renewable energy (RE) output by 2050, focusing on the transition away from gas, coal, and oil-based power systems as the primary strategy for reducing fossil carbon emissions. The study examines the pathways to establishing a fully decarbonized and cost-effective energy grid in Bangladesh, emphasizing the challenges of converting the existing non-renewable power grid into a flexible and reliable RE system. From both technological and energy perspectives, the research investigates alternative methods and technologies to conventional fossil-dependent power systems and their potential to lead Bangladesh into a post-fossil fuel era. As a result, the proposed Carbon-free Advanced Power Network (CAPN) 2021–2050 model will offer the most cost-effective and environmentally friendly energy generation solution, with minimal greenhouse gas emissions and a fully carbon-free output. Intelligent energy management systems will play a key role in this transition. According to the suggested roadmap, there will be no need to construct new gas, coal, furnace oil, or nuclear power plants, and the existing fossil fuel capacity will be gradually phased out as it reaches the end of its technological lifespan.
Proximate composition of different Parts of Marigold Plant
(Chattogram Veterinary & Animal |Sciences University, 2012-07) Mohammad, Nur
Marigold belongs to the oldest medicinal plants, which has been used in the ancient times. At present it supplies its material of great significance for pharmaceutical and cosmetic industry. The study was conducted in the period of February, 2019 to April 2019 on three different samples of marigold plant. The three samples were leaf and stem of marigold plant and marigold flower collected from the flower garden of Chattogram Veterinary and Animal Sciences University. The aim of this study was to detect the proximate components like dry matter (DM), crude protein (CP), crude fibre (CF), ether extract (EE) and total ash (TA) in the Animal Nutrition Laboratory of Chittagong Veterinary And Animal Sciences University, Chittagong, Bangladesh during 1st April 2019 to 28th April 2019
Report on Power Grid Company of Bangladesh
(East West University, 2011-04-28) Neela, Tania Tahmid; Mohammad, Nur
Power Grid Company of Bangladesh (pGCB) is created under the restructuring process of Power Sector in Bangladesh. This report is based on our internship work in Power Grid Company of Bangladesh at Manik Nagar branch. A power system has three basic segments, i.e. power generation, power transmission and power distribution. Basically Power Grid Company of Bangladesh deals with transmission part only. It primarily focuses on different processes of power transmission in power grid. We were introduced with various equipment of Power Grid, such as Relay, Circuit Breaker, Power transformer, Bus bars, Disconnector, Wave trap, Cable, DC battery. We worked at PGCB as intern for 80 hours. Each day our activities were divided into three parts. yustly our supervisor talked to us about the theory behind our day topic. Then we visited the grid with our supervisor to relate theory with practical implementation. Finally we visited the grid again to gather ourselves information about the equipment of that day. Here we learned about power transmission and the behavior of various equipment used in grids. This report contains a detail description about some of these equipments. As we did not complete any major course related to power prior to doing the internship, we had to face hurdles. It would be beneficial and better for us if we had completed the courses Switchgear, Power Station and Power Electronics.
Review on Frequency Adjustment for Power Systems with Grid Connected Wind Farm
(1st International Conference on Robotics, Electrical and Signal Processing Techniques, ICREST 2019, IEEE, 2019-02-21) Ahmad, Kanij; Mohammad, Nur; Quamruzzaman, Muhammad
Continues expanding of wind power harnessing demands an effective control system to improve quality power delivered from wind turbine to grid. A stable power system fully depends on the synchronization that means matching of frequency between the source of power generation and existing power grid. The prime objective of a wind farm controller is to ensure effective operation of the wind farm in any wind speed condition. Frequency deviation between the wind system and grid can challenge the well-built operation of a power system and can imbalance the synchronization between wind farm and grid. The strategy of frequency adjustment is developing time to time which starts from using droop controller based Induction generator to converter based Double-fed Induction generator. This paper summarizes an analytical study on various frequency adjustment mechanisms for a grid-connected wind farm.
Slab Design of a Six Storied Residential Building
(Daffodil International University, 2021) Tasin, Md. Tasnimul Hasan; Islam, Raihanul; Riad, Nur Mohammad; Mohammad, Nur
The report has been written as “Slab Design of a Six Storied Residential Building”. The construction of a six storied building can be divided into several major steps. These stages involve the execution of all works in a professional standard, because a six storied building is a very difficult structure. One of the main tasks during construction is to ensure the safety of residents. The creation of comfortable conditions for people living in the house and providing the maximum convenience in the use of utilities in the house is also important. The fundamental method followed right here is the sequential presentation of analysis & design of all forces of six storied constructing for earthquake and wind impact with the aid of using UBC 1994, BNBC, and ACI code proposed locations in Bangladesh. For this cause Dhaka metropolis has been selected. Data & Figure are supplied wherever felt vital in reader pleasant way. Analysis and layout has been completed with ETABS. After analysis and design of the slab of a six-storied building in Dhaka we gained practical knowledge of design software ETABS and found out how the wind and earthquake loads affect the structure.