International Islamic University, Chittagong

About: International Islamic University, Chittagong is a education organization based out in Chittagong, Bangladesh. It is known for research contribution in the topics: Debye model & Density functional theory. The organization has 1111 authors who have published 1089 publications receiving 7918 citations. The organization is also known as: IIUC.

Bomb disposal robot

Abstract: Bomb disposal robot has been developed by different experts around the world to make an affordable and safe device which will be useful for emergency rescue support. A 6 DOF articulated robotic arm mounted on a moveable base is been developed to help bomb disposal squad to dispose bomb safely from distance. The whole operation of the robot can be performed wirelessly from a computer. DC servo motor is used as actuator of the arm, and the servo is controlled by the PWM signal generated by microcontroller. This report is concerned with the mathematical modeling of a 6 DOF robotic arm along with the methodology of the entire prototype development. Architectural and circuitry development are separately deliberated. Lastly, the performance of the developed robot has been discussed.

CLT at the Higher Secondary Level in Bangladesh: Theory and Practice

Abstract: With the progress of time, the aim of teaching and learning English as a Second Language (ESL) or English as a Foreign Language (EFL) changed, and so did the approaches and methods in language teaching. Different methods and approaches emerged and were replaced, influenced or contributed to the emergence of new methods. It is widely acknowledged that one umbrella approach to language teaching that has become the accepted "norm" in this field is the Communicative Language Teaching Approach. This study deals with the theories and practices of CLT at the Higher Secondary level in Bangladesh. Realizing the significance of CLT, The Ministry of Education in Bangladesh made groundbreaking attempts to implement CLT in the new context and also brought some changes in the curriculum in 1990s. Along with attempting to provide a real picture of how CLT is practiced and utilized in an ESL/EFL context, this study focuses on the Practice of CLT approach in Bangladesh. Moreover, this study intends to propose some propositions to be implemented for better practice of CLT in ESL/EFL contexts. IIUC Studies Vol.12 December 2015: 71-86

An Extensive Literature Review and New Proposal on Optimal Capacitor Placement in Distribution Systems

Abstract: The main goal of power utilities is to supply reliable and quality power to the end-users and fulfill their total demands at all possible locations. Most of the loads are connected in the distribution systems are inductive. The excessive reactive power demand over the distribution network causes tremendous reactive power losses and changes the voltage profile, hence the system's reliability. Shunt Capacitor Bank (SCB) is widely used in the distribution system for reactive power support, voltage profile, and system performance improvement. But there are some challenges to employ SCB in the distribution network; among them, ensuring the most optimum location and size is a big challenge to get the maximum benefits. Some existing techniques showed better loss reduction but needed either larger SCBs sizes or cause improper node voltage. In this research study, the first section provides an extensive literature review of optimal SCBs placement and sizing. Later on, a new technique called Combinatorial Method has been developed for sizing and sitting of optimal Shunt Capacitors to reduce the distribution loss significantly. The developed method was tested for different case studies using Indian practical 22-bus and IEEE-69-bus network. The results were compared with DSA, Fuzzy GA, and TLBO method and found better distribution feeder loss minimization and voltage profile improvement.