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.

Intermetallic M Pt3 (M = Ti, Zr, Hf): Elastic, electronic, optical and thermal properties

Abstract: In this study, the structural and unexplored elastic, electronic, optical and thermal properties of Pt-based alloys MPt3 (M = Ti, Hf) and only optical and thermal properties of ZrPt3 are subjected ...

Determinants of Stock Price Movements: Evidence from Chittagong Stock Exchange, Bangladesh

Abstract: Stock market plays a vital role in the economic development of an economy. It bridges up between savers and real manufacturers by raising funds from investors to companies. This process was broken down due to the 2010-2011 stock market crash in Bangladesh. Though the determinants of stock price have been settled empirically, the current paper aims to reexamine the relationship between stock price, dividend and retained earnings of 29 listed banks of Chittagong Stock Exchange, in the post-crash period. Cross-sectional data were collected from secondary sources. Using linear regression method, the study found that both, dividend and retained earnings of sample banks have strong influence over the stock price, though there was moderate explanatory power of those variables. After reviewing the causes of crisis 2010-2011, this study suggests the following: to control price manipulation, to publish proper financial statement, regulate the dividend policy, to ensure sufficient knowledge among investors, recruit technical expert and ensure proper settlement for transactions,prevent crises of stock market against speculation etc.

Understanding the improvement of thermo-mechanical and optical properties of 212 MAX phase borides Zr2AB2 (A = In, Tl)

Abstract: In this paper, a first-principles study of the newly known MAX phase borides Zr2AB2 (A = In, Tl) has been carried out. The stiffness constants, elastic moduli, mechanical anisotropy, thermal and optical properties are investigated for the first time. The structural lattice parameters are found to be consistent with previous study. The dynamical and mechanical stability of the titled compounds have been checked. Fundamental insights into the stiffness constants, elastic moduli, hardness parameters, brittleness and anisotropy indices are presented. The variation of these mechanical properties is explained based on the Mulliken population analysis and charge density mapping (CDM). The metallic nature and anisotropy in conductivity has been confirmed from the electronic band structure. The analysis of DOS revealed the dominant contribution from Zr-d orbitals to the conductivity. The higher values of ΘD and Tm, and lower value of Kmin for Zr2AB2 (A = In, Tl) compared to those of Zr2AC (A = In, Tl) suggest enhanced thermal properties of the compounds under study for practical applications. Besides, the specific heat capacities (Cv, Cp), thermal expansion coefficient, and different thermodynamic potential functions have been calculated. The technologically important optical constants have been studied with an intention to reveal their possible relevance for application purposes. The reflectivity spectra revealed the applicability of Zr2AB2 (A = In, Tl) as cover materials to diminish the solar heating. The studied physical properties of Zr2AB2 (A = In, Tl) are compared with those of other relevant 212 and 211 MAX phase nanolaminates.