Imran Bin Jafar
http://hdl.handle.net/10361/6956
2024-03-29T11:10:50Z
2024-03-29T11:10:50Z
Design and implementation of a simple electromechanical system to reduce domestic gas wastage and accidents in South-Asia
M. Huq, Rachaen
Hoque, Md. Anamul
Chakraborty, Partha
B. Jafar, Imran
Rahman, Khan H.
http://hdl.handle.net/10361/7357
2018-07-25T10:19:29Z
2012-01-01T00:00:00Z
Design and implementation of a simple electromechanical system to reduce domestic gas wastage and accidents in South-Asia
M. Huq, Rachaen; Hoque, Md. Anamul; Chakraborty, Partha; B. Jafar, Imran; Rahman, Khan H.
This paper elaborates design and implementation aspects of a system design project which aims at modernizing the current design of domestic gas-stoves with a simple electromechanical sensor-integrated system in order to reduce wastage of gas and accident possibilities in South-Asian households. Statistics show that a significant amount of natural gas is wasted every day in the domestic cooking purpose because of the ignorance of the users by keeping the gas line on even after cooking is done, or during breaks. One of the two major portions of the proposed system will sense the situation of 'activity' of the stove (idle or cooking); the other will sense the state of the gas knob (on or off) and send signals to the controller-unit accordingly. Both of these electromechanical sensors were designed and implemented in this project. If the stove remains 'idle' and gas-line is 'on' for a specific amount of time, say five minutes, the controller will automatically close the gas line. The gas line will again automatically 'open' when any of the above states changes (if the stove becomes 'active' or the line is manually closed). The system components were designed and implemented as a whole successfully. The proposed system can either be implemented as an external modification to the existing gas-stoves or can be industrially integrated to make the next-generation energy saving stoves.
This conference paper was presented in the 6th International Conference on Sensing Technology, ICST 2012; Kolkata; India; 18 December 2012 through 21 December 2012 [© 2012 IEEE] The conference paper's definite version is available at: http://dx.doi.org/10.1109/ICSensT.2012.6461750
2012-01-01T00:00:00Z
Simulation and analysis of battery performance of a solar car using a model implemented in simulink
Al Maliniud, Abdullah
Zaman, Asif
Jafar, Imran Bin
http://hdl.handle.net/10361/7353
2022-01-27T03:12:50Z
2015-12-01T00:00:00Z
Simulation and analysis of battery performance of a solar car using a model implemented in simulink
Al Maliniud, Abdullah; Zaman, Asif; Jafar, Imran Bin
Battery performance of a proposed solar car has been investigated under different road conditions while the car makes a nip in one of the longest routes in Dhaka city, using a model developed in Matlab Simulink. A significant reduction in energy consumption is observed when the car runs at lower speed, which is atthbuted to lower air drag at lower speed. Energy consumption further reduces with the increase in number of stoppages. Thus the solar/electric car will be an ideal mode of transport for a city like Dhaka, where traffic congestion is a daily occurrence.
This conference paper was presented in the 2nd International Conference on Electrical Information and Communication Technologies, EICT 2015; Khulna; Bangladesh; 10 December 2015 through 12 December 2015 [ © 2015 IEEE ] The conference paper's definite version is available at: http://dx.doi.org/10.1109/EICT.2015.7391999
2015-12-01T00:00:00Z
Performance study of lead-acid battery in a solar car under different traffic and weather conditions
Mahmud, Abdullah Al
Jafar, Imran Bin
Zaman, Asif
Rahman, Mosaddequr Abdur
http://hdl.handle.net/10361/7350
2022-01-27T03:12:56Z
2016-01-01T00:00:00Z
Performance study of lead-acid battery in a solar car under different traffic and weather conditions
Mahmud, Abdullah Al; Jafar, Imran Bin; Zaman, Asif; Rahman, Mosaddequr Abdur
In this paper performance of lead-acid battery in a solar car, proposed earlier for Dhaka city dwellers, has been studied under different traffic and weather conditions while the car travels in a long route of Dhaka city. A model of the electric drive system of the proposed car, developed in Matlab Simulink, is used to investigate the battery response. It has been observed that the energy required by the car when it travels 30% of the road at the top speed of 60 km/hour is about 65% of the energy required when it travels 90% of the road at that speed, which further decreases with the increase of number of stoppages. Because of this feature, the proposed solar car appears to be an appropriate means of transport in Dhaka, the city with quotidian traffic congestion. In addition of being emission free, it also ensures less energy consumption during heavy traffic congestion compared to a fuel driven car which burns more fuel and releases more toxic gases under the same road conditions.
This conference paper was presented in the 4th International Conference on the Developments in Renewable Energy Technology, ICDRET 2016; Dhaka; Bangladesh; 7 January 2016 through 9 January 2016 [© 2016 UIU] The conference paper's definite version is available at: http://dx.doi.org/10.1109/ICDRET.2016.7421475
2016-01-01T00:00:00Z
Mixed FBB and RBB low leakage technique for high durable CMOS circuit
Barua, Parag
Jafar, Imran Bin
Sengupta, Prianka
Noor, Md Sadaf
http://hdl.handle.net/10361/7035
2016-11-29T09:02:26Z
2014-01-01T00:00:00Z
Mixed FBB and RBB low leakage technique for high durable CMOS circuit
Barua, Parag; Jafar, Imran Bin; Sengupta, Prianka; Noor, Md Sadaf
CMOS logic circuit is extensively used for designing low power Very Large Scale Integration (VLSI). Reducing the dimension of CMOS in a nanometer range, functionality and efficiency can be increased, but as a result we have to compromise with circuit level leakage. As circuit level leakage also known as leakage current is currently one of the major concernments to the VLSI designers. These Leakage currents are generated due to different types of leakage current components such as Weak inversion current, Drain-induced barrier lowering (DIBL), Gate-induced drain leakage and Oxide leakage tunneling. However, there are wide ranges of method that are already available to reduce these leakages, but all of them have their own tradeoffs. In this paper we propose a novel technique by integrating the idea of Forward Back Bias (FBB) and Reverse Back Bias (RBB) which reduces leakage extensively than sleepy stack, stacked sleep, variable body biasing and dual sleep. Furthermore, RBB and FBB are yielded with forced stacked transistors where RBB is accountable for nullifying the leakage and FBB is responsible for offsetting the delay penalty. The proposed method is scrutinized under 22nm to 65nm feature size, and it has come out that these novel schemes are especially very effective for designing the future low-voltage, low-power CMOS VLSI's [1]. Therefore, the main principle of this technique is to trim down leakages, but it has an obvious delay constraint that is considered as a tradeoff in this particular case.
This conference paper was presented in the 2014 International Conference on Informatics, Electronics and Vision, ICIEV 2014; Dhaka; Bangladesh; 23 May 2014 through 24 May 2014 [© 2014 IEEE Computer Society] The conference paper's definite version is available at: http://10.1109/ICIEV.2014.6850716
2014-01-01T00:00:00Z