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Institution

Chittagong University of Engineering & Technology

EducationChittagong, Bangladesh
About: Chittagong University of Engineering & Technology is a education organization based out in Chittagong, Bangladesh. It is known for research contribution in the topics: Renewable energy & Dielectric. The organization has 1200 authors who have published 1444 publications receiving 10418 citations. The organization is also known as: Engineering College, Chittagong & Bangladesh Institute of Technology, Chittagong.


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Journal ArticleDOI
03 Oct 2021
TL;DR: In this paper, mild steel material was taken into consideration in designing and fabricating coil springs and theoretical and experimental investigations were conducted to calculate springs' stiffness and to make validation between them.
Abstract: In general, the suspension systems are used to absorb vibrations, bump, rolls, dip from shock loads due to road surface irregularities. It performs its major role without affecting the vehicles’ stability and overall handling during operation. Coil springs are used as suspension element in light vehicles to attenuate unwanted vibrations. A spring is an elastic object used to store mechanical energy and it can be twisted, pulled or extended by some force and can return to its initial position when the force is released. In this study, mild steel material was taken into consideration in designing and fabricating coil springs. Theoretical and experimental investigations were conducted to calculate springs’ stiffness and to make validation between them. Three model of springs having coils 10, 11, 14 respectively are designed which have slight stiffness difference both theoretically and experimentally. The models were analyzed to determine mechanical behaviors for randomly chosen loading conditions ranging from 29.4 N to 176.4 N which are better suited with spring size. It is noted from both numerical and experimental investigations that deflection is high when the stiffness is less and vice-versa. In addition, shear stress formation increases with the increment of stiffness and applied load. Hence, springs having high stiffness are used in suspension system to reduce vibration and other disturbances. This study shows springs of having high stiffness are comparatively compact in size and cost economic as well.
Book ChapterDOI
01 Jan 2020
TL;DR: An effort will be given to make sure that the player can choose the start line (source) and the finish line (destination) while flood-fill algorithm calculates the shortest path for the car at a shortest possible time and helps the car to follow it fast enough.
Abstract: The most vital element in making a non-playable car AI in racing games is finding the shortest path between two locations (the start and the finish lines) by making an efficient algorithm for the car to follow it. Usually, both the lines are predetermined for each race in most of the popular games. However, there has not been any game where the player gets the option to select those. Hence, in this work, an effort will be given to make sure that the player can choose the start line (source) and the finish line (destination) while flood-fill algorithm calculates the shortest path for the car at a shortest possible time and helps the car to follow it fast enough. The completed game has been tested, and from the user review, it seems to be quite difficult to defeat the opponent.
Journal ArticleDOI
TL;DR: In this paper, the flow behavior of fluids through pore spaces of the formation of a carbon bearing formation is studied and a flow model is proposed to understand the flow behaviour of fluids in the formation.
Abstract: Hydrocarbon bearing formations are complex enough to obscure our understanding of the flow behavior of fluids through pore spaces of the formation: though coring and logging enable us to procure ch...
Proceedings ArticleDOI
01 Sep 2016
TL;DR: In this article, numerical simulation from the self-consistent solution of Schrodinger-Poisson systems is used to investigate the InGaN/InN/inGaN-based double channel HEMTs and optimize their design.
Abstract: In this paper, InGaN/InN/InGaN-based double channel HEMTs are investigated by numerical simulation from the self-consistent solution of Schrodinger-Poisson systems. The influences of polarization charges and quantum effects are incorporated into this model. The simulation model predicts the two-dimensional electrical characteristics (internal electric fields and distribution of charges in the channel) that are associated with specified physical structures and bias conditions through the proper material parameters, the polarization field and surface states. Corresponding analysis and discussion based on the simulation results are subsequently given. This analysis provides a platform to investigate the InN-based double channel HEMTs and to optimize their design.

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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20234
202240
2021243
2020241
2019228
2018119