Time filter

Source Type

Comilla, Bangladesh

The Comilla University is a public university located at Kotbari, Comilla, Bangladesh. The university was constructed on 50 acres of land at Lalmai Bihar, Moynamoti. Comilla University is affiliated by University Grants Commission, Bangladesh.Golam Mowlah is the founder vice-chancellor of Comilla University who served until he was removed on July 30, 2008. Zulfikar Ali, a professor of mathematics, was given the charge as acting Vice Chancellor. The next vice-chancellor of Comilla University, A.K.M. Zehadul Karim declared his resignation on 7 October 2009 after a major violence in campus. Amir Hossen Khan, a professor of Physics department of Jahangirnagar University, was appointed as Vice Chancellor on 22 November 2009. After expiration of the duration of Professor Dr. Amir Hossen khan then Professor Dr. Ali Ashraf, a professor of Economics department and Ex-President of Chittagong University Teachers Association has been appointed as the 5th Vice Chancellor of Comilla University. He joined the university in 3rd December,2013. The chancellor of the university is Honorable President of Bangladesh Abdul Hamid.It started with 7 functional departments. Now there are a total of 17 departments Under 5 faculties including Information & Communication Technology ,Computer Science & Engineering , Pharmacy, Physics, Chemistry, Statistics, Mathematics, Finance and Banking, Accounting & Information Systems , Marketing, Management Studies, Economics, Public Administration, Archeology, Anthropology, Bengali, and English. Wikipedia.

Uddin M.J.,Daffodil International University | Enamul Karim M.,Comilla University
Research Journal of Applied Sciences, Engineering and Technology | Year: 2013

This study presents the numerical simulations to investigate the effects of the magnetic field parameter, Modified Forchhemier number, Prandtl number, Modified Darcy number, the Local Grashof number, the Dufour number and the Schmidt number on steady two-dimensional, laminar, hydromagnetic flow with heat and mass transfer over a semi-infinite, permeable inclined plate in the presence of thermophoresis and heat generation is carefully considered and equipped numerically. A similarity transformation is used to shrink the governing non-linear partial differential equations into ordinary differential equations. The obtained locally similar equations are then solved numerically by applying Nachtsheim-Swigert shooting iteration technique with sixth-order Runge-Kutta integration scheme. Comparisons with previously published study are performed and the results are found to be in very good agreement. Numerical results for the dimensionless velocity, temperature and concentration profiles are reported graphically as well as for the skin-friction coefficient, wall heat transfer and particle deposition rates are investigated for an assortment of values of the parameters inflowing into the problem. © Maxwell Scientific Organization, 2013. Source

Seddiqui M.H.,Chittagong University | Hoque M.N.,City University of Bangladesh | Rahman M.H.H.,Comilla University
2015 18th International Conference on Computer and Information Technology, ICCIT 2015 | Year: 2015

Every day thousands of news articles are published in Bangla from several different sources on the web and this number is even increasing rapidly. On the contrary, the readers are often selective to read their desired news only. In this connection, classical Information Extraction (IE) techniques are used to query with keywords from unstructured or semi-structured news contents to fulfill partial requirements. However, they cannot interpret sequences of events, relation among entities, inference some unveiled facts to facilitate further human analysis. To achieve this goal, semantic technology adds formal structure and semantics to the news stream. In this paper, we propose a system to analyze Bangla news content to annotate especially things, people and places with semantic technology automatically by extracting what happened, when, where and who being involved in the news with the help of classical Natural Language Processing (NLP) techniques. Furthermore, we relate news of today with the previous news to accumulate information over time. We present our proposed system of annotating Bangla news semantically and experiment with SPARQL to inference integrated news from different sources over time and shows its effectiveness in querying specific information. © 2015 IEEE. Source

Hasan M.,Comilla University | Rahman M.A.,Bangladesh University of Engineering and Technology
2015 18th International Conference on Computer and Information Technology, ICCIT 2015 | Year: 2015

Now a day the World Wide Web (WWW) is a most triumphant communication medium. This represents revolutionary tools to communicate and access information, which enables to access innumerable documents on a huge variety of topics. Though the profusion of information, languages frequently cause troubles. Conversion from another language to Bangla language is instantly a highly demand for Bangladeshi peoples because they are inducing so rapidly on digital contracting and web resources. The Universal Networking Language (UNL)[5] deals to minimize above problems. This helps to conquer the language blockade among citizens of different nations to solve problems rising from current globalization trends. In this paper we propose the psychiatry of Bangla Dirukta Shobdo and translation of Bangla sentences to UNL expression. Here we actually are paying attention on a concept in bangla "Dirukta Shobdo" from Bangla Grammar and what are the principle of converting dirukto shobdo to UNL language and the process of implementation. © 2015 IEEE. Source

Islam M.S.,Comilla University | Majumdar M.K.H.,Chittagong University | Khan M.R.H.,Comilla University
2015 18th International Conference on Computer and Information Technology, ICCIT 2015 | Year: 2015

Phonons play an important role in determining the electrical and thermal properties of semiconductors and other material systems. A mathematical model based on elastic continuum approach has been used for calculating the phonon dispersion of semiconductor cubic quantum dot. With this model acoustic phonon dispersions of an individual GaAs quantum dot are calculated for three different sizes to investigate the size effect on phonon spectra. Phonon group velocity has also been calculated for each phonon branch by numerical differentiation. © 2015 IEEE. Source

Mazumdar S.C.,Bangladesh University of Engineering and Technology | Mazumdar S.C.,Comilla University | Khan M.N.I.,Atomic Energy Center | Islam M.F.,Bangladesh University of Engineering and Technology | Hossain A.K.M.A.,Bangladesh University of Engineering and Technology
Journal of Magnetism and Magnetic Materials | Year: 2016

Magnetoelectric composites (1-y)Bi0.8Dy0.2FeO3 (BDFO)-yNi0.5Zn0.5Fe2O4 (NZFO) with y=0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and 1.0 are synthesized by conventional solid state reaction route. The X-ray diffraction analysis confirms the coexistence of orthorhombic perovskite BDFO and spinel NZFO phases with no third phase. Microstructural and surface morphology are studied by Field Emission Scanning Electron Microscopy. Quantitative elemental analysis of the samples is carried out by Energy Dispersive X-ray Spectroscopy. The real part of the initial permeability increases and relative quality peak broadens with the ferrite content in the composites. Dielectric constant, loss tangent, relative quality factor and ac conductivity are measured as a function of frequency at room temperature. The dielectric constant shows usual dielectric dispersion at lower frequencies due to Maxwell-Wagner type interfacial polarization. The complex impedance spectroscopy is used to distinguish between the grain and grain boundary contribution to the total resistance. The modulus study reveals the ease of polaron hopping and negligibly small contribution of electrode effect. The magnetic hysteresis has been studied to know the response of NZFO phase to the applied magnetic field in the composite. The saturation and remanent magnetization are found to increase with increase in NZFO in the composite. The magnetoelectric voltage coefficient, αME is measured as a function of applied dc magnetic field. The tuning of ferrite percentage and dc magnetic field results in highest αME (~66 mV/cm Oe) for the composite with 40% NZFO at 4.7 kOe which is attributed to the enhanced mechanical coupling between the two phases. The incorporation of BDFO and NZFO enhances the multiferroic properties in the present composite which are quite promising from application point of view. © 2015 Elsevier B.V. All rights reserved. Source

Discover hidden collaborations