Bangladesh University of Business and Technology

www.bubt.ac.bd
Dhaka, Bangladesh

Bangladesh University of Business and Technology or BUBT is a private university located in Mirpur, Dhaka, Bangladesh. The university was established under the Private University Act 1992. BUBT is regulated by the University Grants Commission Bangladesh.BUBT was founded in 2003 under the authority of the Private University Act and was approved by the University Grants Commission and the Ministry of Education, Government of Bangladesh. It was modeled after North American universities. It started its operation in the Dhaka Commerce College campus, the founder organization of BUBT. It is running its programs in its own campus at Rupnagar R/A, Mirpur. Classes are also held at Dhaka Commerce College campus. In 2011 UGC has ranked BUBT as one of the best eight private universities. Around 1000 students were awarded with their graduate and post graduate degrees in the first convocation this year .BUBT is the proud member of Association of Commonwealth Universities. Wikipedia.


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Pear Hossain M.,King Fahd University of Petroleum and Minerals | Pear Hossain M.,Bangladesh University of Business and Technology | Hafidz Omar M.,King Fahd University of Petroleum and Minerals | Riaz M.,King Fahd University of Petroleum and Minerals
Computers and Industrial Engineering | Year: 2017

Problem statement The conventional methods of monitoring a process sometimes provide misleading results when the population consists of two or more subpopulations. Mixture distribution may provide better performance in this circumstance. Objective To establish a control chart named Mixture Maxwell Cumulative Quantity (MMCQ) control chart for two components Maxwell mixture distribution. This chart may be implemented to monitor non-conforming items in this process. Method For estimating the parameters, the Expectation-Maximization (EM) algorithm has been used. To measure performance and for comparison, the average run length (ARL) has been used. Results We compared this MMCQ control chart with MCQ control chart where MMCQ chart performs better as compared to MCQ chart. Performance of the chart was measured using run length and detection properties. Conclusion As one of non-normal skewed distributions, Maxwell distribution is studied to model control charts. To monitor time between events for processes with Maxwell subpopulations, the behavior of the control chart based on two components mixture Maxwell distribution were examined. © 2017 Elsevier Ltd


Rahman S.,Bangladesh University of Business and Technology | Zaman S.,Jahangirnagar University | Kaiser M.S.,Anglia Ruskin University
19th International Conference on Computer and Information Technology, ICCIT 2016 | Year: 2016

A proper route selection process enables human beings to reach faster at their destination. This work introduces a dynamic route selection support system to find the best suitable path for a source-destination pair. It considers three individual road traffic delays which are considered as signalized delay, cross section delay and path delay. All of them are used to calculate total delay time which is followed by an algorithm that reflects the proposed system model. The term, path delay and cross section delay use general delay calculation methods whereas, based on the traffic environment, signalized delay requires special delay calculation method. For signalized delay calculation, heterogeneous traffic environment considers an empirical term which is integrated with classical delay model. As the capital of Bangladesh, Dhaka city upholds all characteristics of heterogeneous traffic environment, this work finds it more suitable in using modified webstar delay model.To verify signalized delay calculation, the term variance, derived from taylor series has been used. Performance analysis shows that the adjustment term that is considered for signalized delay calculation is suitable for Dhaka city. Thus, using statistical approach, the proposed model identifies best suitable path among all available paths between source-destination points. © 2016 IEEE.


Islam Md.T.,Bangladesh University of Business and Technology | Hoque Md.R.,University of Dhaka | Sorwar G.,Southern Cross University of Australia
19th International Conference on Computer and Information Technology, ICCIT 2016 | Year: 2016

Application of e-commerce has become an integral part of marketing due to an increasing diffusion of information and communication technology (ICT) throughout the world including Bangladesh. Due to its growing significance to the economy, it is critical to identify factors affecting customers' intention to use e-commerce in Bangladesh. This study used Technology Acceptance Model (TAM) to determine key factors influencing customers' intention to use e-commerce system. A structured questionnaire was used to collect data from 110 participants in Bangladesh. The collected data were analyzed using Partial Least Squares (PLS) methods, a statistical analysis technique based on the Structural Equation Modeling (SEM). The study found a significant positive effect of perceived usefulness and perceived ease of use on the behavioral intention of using e-commerce. However, the study found a negative effect of computer attitudes towards the customers' intention to use ecommerce system. The findings of this study have significant implications towards the intention of the users to use e-commerce in Bangladesh. © 2016 IEEE.


Sabab S.A.,Northern University of Bangladesh | Ashmafee Md.H.,Bangladesh University of Business and Technology
19th International Conference on Computer and Information Technology, ICCIT 2016 | Year: 2016

In the real world, books and documents are the sources of knowledge. But this knowledge is only bounded to people with clear vision. Our society includes a group of people who does not have a clear vision or people who are blind. For this group, world is like a black illusion. The shape and structure's information of an object is unavailable to them let alone reading a document. For blind acquiring knowledge by reading documents is cumbersome. Braille is one of the methods which is used to read a book or document. In this method, any document has to be converted to braille format to become understandable to a blind. The problem arises due to the fact that, this is an expensive procedure and many times not available. The solution is rather simple, introduce a smart device with a multimodal system that can convert any document to the interpreted form to a blind. A blind can read document only by tapping words which is then audibly presented through text to speech engine. "Blind Reader" - developed for touch devices which is user friendly and effective interactive system for visionless or low vision people. © 2016 IEEE.


Akhter T.,Jahangirnagar University | Hossain M.M.,Jahangirnagar University | Hossain M.M.,Bangladesh University of Business and Technology | Mamun A.A.,Jahangirnagar University
Physics of Plasmas | Year: 2012

Dust-acoustic (DA) solitary structures and their multi-dimensional instability in a magnetized dusty plasma (containing inertial negatively and positively charged dust particles, and Boltzmann electrons and ions) have been theoretically investigated by the reductive perturbation method, and the small-k perturbation expansion technique. It has been found that the basic features (polarity, speed, height, thickness, etc.) of such DA solitary structures, and their multi-dimensional instability criterion or growth rate are significantly modified by the presence of opposite polarity dust particles and external magnetic field. The implications of our results in space and laboratory dusty plasma systems have been briefly discussed. © 2012 American Institute of Physics.


Akhter T.,Jahangirnagar University | Hossain M.M.,Bangladesh University of Business and Technology | Mamun A.A.,Jahangirnagar University
IEEE Transactions on Plasma Science | Year: 2013

A precise theoretical investigation is made on ion-acoustic (IA) solitary waves (SWs) and double layers (DLs) in a degenerate multi-ion plasma (composed of inertial positive and negative ions and degenerate electrons). The standard reductive perturbation method is employed to derive the Korteweg-de Vries (K-dV), the mixed K-dV (mK-dV), and the Gardner (GE) equations. The GE admits SW and DL solutions for μ around its critical value μc (where μc is the value of μ corresponding to the vanishing of the nonlinear coefficient of the K-dV equation). The basic features of IA SWs and DLs are analyzed. It is found that the characteristics of IA SWs found from GE are different from those of the K-dV solitons and mK-dV solitons. The implications of our results to different space and laboratory plasma situations, where opposite polarity ions are observed, are briefly discussed. © 1973-2012 IEEE.


Islam M.M.,Bangladesh University of Business and Technology
Research Journal of Applied Sciences, Engineering and Technology | Year: 2014

In this study we extend the Hadamard's type inequalities for convex functions defined on the minimum modulus of integral functions in complex field. Firstly, using the Principal of minimum modulus theorem we derive that m (r) is continuous and decreasing function in R+. Secondly, we introduce a function t (r) and derived that t (r) and lnt (r) are continuous and convex in R+. Finally we derive two inequalities analogous to well known Hadamard's inequality by using elementary analysis. © Maxwell Scientific Organization, 2014.


Hasan M.,Bangladesh University of Business and Technology | Hossain M.M.,Bangladesh University of Business and Technology | Mamun A.A.,Bangladesh University of Business and Technology
Astrophysics and Space Science | Year: 2013

Nonplanar (cylindrical and spherical) double layers (DLs) in a quantum dusty plasma (composed of inertial ions, Fermi electrons, and negatively charged immobile dust particles) are studied by employing the reductive perturbation method. The modified Gardner equation describing the nonlinear propagation of the quantum dust ion-acoustic (QDIA) waves is derived, and its nonplanar double layer solutions are numerically analyzed. The parametric regimes for the existence of the DLs, which are found to be associated with both positive and negative potential, are obtained. It has been found that the existence of small but finite amplitude electrostatic double layers depends on β=Zpnp0/Znnn0 (where Zp (Zn) is the charge states for positive ions (negative ions) and np0 (nn0) is the equilibrium positive ions (negative ions) number density) as well as the quantum diffraction parameter, H. It has been also found that the propagation characteristics of nonplanar QDIA DLs are significantly differ from those of planar ones. © 2013 Springer Science+Business Media Dordrecht.


Akhter T.,Jahangirnagar University | Hossain M.M.,Bangladesh University of Business and Technology | Hossain M.M.,Jahangirnagar University | Mamun A.A.,Jahangirnagar University
Astrophysics and Space Science | Year: 2013

A theoretical investigation has been made on the Dust ion-acoustic (DIA) Gardner solitons (GSs) and double layers (DLs) in electronegative plasma consisting of inertial positive and negative ions, super-thermal (kappa distributed) electrons, and negatively charged static dust. The standard reductive perturbation method is employed to derive the Korteweg-de Vries (K-dV), modified K-dV (mK-dV), and standard Gardner equations, which admits solitary waves (SWs) and DLs solutions. It have been found that GSs and DLs exist for α around its critical value αc, where αc is the value of α corresponding to the vanishing of the nonlinear coefficient of the K-dV equation. The parametric regimes for the existence of both the positive as well as negative SWs and negative DLs are obtained. The basic features of DIA SWs and DLs are analyzed and it has been found that the polarity, speed, height, thickness of such DIA SWs and DLs structures, are significantly modified due to the presence of two types of ions and spectral index (κ) of super-thermal electrons. It has also been found that the characteristics of DIA GSs and DLs, are different from that of the K-dV solitons and mK-dV solitons. The relevance of our results to different interstellar space plasma situations are discussed. © 2013 Springer Science+Business Media Dordrecht.


Russell M.,Bangladesh University of Business and Technology | Soiket M.I.H.,Bangladesh University of Engineering and Technology
Organic Communications | Year: 2015

Schiff's base1-[(2,4-difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)]ethanone thiosemicarbazone (compound 1A) wasprepared by condensation of 1-(2,4-difluorophenyl)-2-[1 (H)-1,2,4-triazol-1-yl]ethanone (1)with thiosemicarbazide. The compound 1A, on reaction with α-halogenoketones yielded 1-(2, 4-difluorophenyl)-2-[(1H)-1,2,4-triazol-1-yl] ethanone [2-[4-halogenophenyl] thiazolyl]hydrazone.Anti-fungal activity of all the compounds has been tested against four fungal organism:C. albicans, Colletotrichum spp., A. nigar and Fusarium spp. commonly responsible for fungal infections in Bangladesh. © 2014 ACG Publications.

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