A. Acharyya, P. Sen, E. Chakraborty, P. Sarkar, N. Banerjee, R. Dey, A. R. Mondal, S. Chatterjee & T. K. Sengupta·Physical Science International Journal·2014
In this paper, the authors have proposed a new method for speed control of DC motor drives via modified constant frequency-variable duty (CFVD) pulse width modulation (PWM) technique. The armature of the DC motor rotating in very low speed has to accept abrupt mechanical shocks (...
Open access
Research Article10.9734/PSIJ/2014/9905
Aims: To examine the effectiveness of low-flow high-ozone concentration disinfection of dental impressions, by means of an automated prototype device. Methodology: Disc shaped dental addition-cured silicone was inoculated with Klebsiella pneumoniae and Staphylococcus aureus, 10 m...
Open access
Research Article10.9734/BJAST/2014/10119
The aim of study is to demonstrate that separation of solvated ions in solution of mix of salts under the action of external periodic electric field happens because of around ions there are formed clusters consisting of molecules of solvent and the sizes of such clusters have dim...
Open access
Research Article10.9734/BJAST/2014/9649
Aims: To study the ecological benefits and biodiversity of plants in the Bru’s spiritual forest and the relationship between the Bru’s wisdoms and their spiritual forest. Study Design: This research applied the use of forest ecology and a qualitative research. Place and Duration...
Open access
Research Article10.9734/BJAST/2014/9170
Aims: The aim of this research is to investigate the factors affecting the intention towards using e-learning in a Jordanian university, through an extension of the technology acceptance model (TAM). Place and Duration of Study: Amman University College between May and July 2013....
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Research Article10.9734/BJAST/2014/10033
In order to study hydrogeochemistry of groundwater, samples of water were collected from Marand located in Eastern Azerbaijan province, NW of Iran at July, 2008. This region has 800 km2 space and 87 locations. Samples which were collected from 74 water wells, 10 Qantas and 3 spri...
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Research Article10.9734/BJAST/2014/9426
Aims: To examine the level of socio-economic and physical development of Ogbese town vis-à-vis the regional development potentials. Study Design: Reconnaissance survey and administration of questionnaires were carried out in the study. Place and Duration of Study: Ogbese region i...
Open access
Research Article10.9734/BJAST/2014/9087
Aim: The principle of eliminating the frequency reuse in the mobile Ad Hoc system among the sectors of the unit cell using Multi Inputs Multi Outputs (MIMO) antenna array is investigated in this paper. Antenna Design: The size of the proposed antenna array is 10×10 cm2 to obtain...
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Research Article10.9734/BJAST/2014/8739
Aim: This work compared four different designs of a cryogenic process (Linde methane liquefaction) using exergy and process economic analyses. Study Design: Simulation, energy, exergy and process economic analyses were used. Place and Duration of Study: Department of Chemical Eng...
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Research Article10.9734/BJAST/2014/8646
Aims: Scab caused by Sphaceloma sp and Septoria leaf spot caused by Septoria vignae were evaluated on one variety (Ife Brown) of cowpea: in this study. Ife Brown is highly susceptible to scab and moderately susceptible to Septoria leaf spot. Cowpea (Vignia unguiculata L. Walp) wa...
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Research Article10.9734/BJAST/2014/6229
Soil samples were collected during dry season from Okaba coal mine areas to establish the level of impact. Impact evaluations were carried out using correlation analysis, factor and cluster analyses, determination of enrichment factor (EF), contamination factor (CF), pollution lo...
Open access
Research Article10.9734/BJAST/2014/7051
The foundations of government policy related to e-learning, especially to the extent they were theoretically informed and innovative, were influenced by two theories: diffusion of innovation and commons dilemma. Implementation of e-learning technology systems is still evolving in...
Aims: To study the numbers and distribution of interstitial cells of Cajal (ICCs) in fallopian tubes (FTs) with ectopic gestation in comparison to normal FTs. Study Design: Interstitial cells of Cajal were studied in normal FTs and FTs with ectopic gestation by immunohistochemist...
This article addresses key issues and aspects of writing a good research question. The article shows the way to young researchers on how to zero down on a topic and formulate a research question such that the research may be conducted in a fruitful and time bound manner. Often re...
Aims: To describe and evaluate the application of an innovative approach that combines cognitive and behavioral techniques with the art-form of drama to treating childhood fears, leading the participant to an in vivo exposure to the fear stimulus. Presentation of Case: An 11 year...