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Sultana R.,VNRVJIET | Ravi Kumar D.,VNRVJIET | Raju G.S.,IIT BHU
International Journal of Control Theory and Applications | Year: 2015

In deregulation, often issues and challenges arise. The issue of power loss allocation is a common and an important one among them. The generators must compensate transmission loss by generating more power. In competitive electricity market environment, no suppliers would want to generate more to compensate this loss as it will increase their production costs. In general both generators and consumers are required to pay for the losses because they both use the network and thus are responsible for the losses occurred. If there is no specified method to handle this problem, maximum percentage of transmission losses is allocated to generator and less percentage of transmission losses to consumers. With this the fuel cost for the generation will increase which is unfair. The main intention of this paper is for fair loss allocation method to share losses only among generators by sharing losses in the each transmission line between corresponding buses and also methods to share losses between generators and consumers thus making both players cover up for the cost of losses in the competitive market. © International Sciences Press, India. Source


Jo C.,Changwon National University | Gupta O.,IIT BHU
Proceedings of the 2013 6th International Congress on Image and Signal Processing, CISP 2013 | Year: 2013

This paper presents a basic research results to visualize the micro-movement of formant tracks for the purpose of using it to analyze speech signal on the research of speech analysis and synthesis etc. Current analysis method on formant is mainly focusing on analysis of static statistical characteristics. But dynamic information about changing vowels is hard to acquire using conventional statistical results such as mean, variance etc. In this experiment we propose a new visualization method to display the dynamic behavior of vowel changes according to the micro movement of formant on vowel space. © 2013 IEEE. Source


Giri D.D.,IIT BHU | Kumar A.,Banaras Hindu University | Shukla P.N.,Banaras Hindu University | Singh R.,Banaras Hindu University | And 2 more authors.
Polish Journal of Microbiology | Year: 2013

Two methylotrophic strains of Bina coalmine spoil BNV7b and BRV25 were identified based on physiological traits and 16S rDNA sequence as Methylophilus and Methylobacterium species. The strains exhibited similar carbon utilization but differed in N utilization and their response to the metabolic inhibitors. Methylophilus sp. was less tolerant to salt stress and it viability declined to one tenth within 4 h of incubation in 2M NaCl due to membrane damage and leakage of the intracellular electrolytes as evident from malondiaaldehyde (MDA) assay. In 200 mM NaCl, they exhibited increased superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) activity while in 500 mM NaCl, enzyme activities declined in Methylophilus sp. and increased in Methylobacterium sp. Among exogenously applied osmoprotectants proline was most efficient; however, polyols (mannitol, sorbitol and glycerol) also supported growth under lethal NaCl concentration. Source


Agarwal A.,Samsung | Singh R.K.,IIT BHU
7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014 | Year: 2014

The objective of this paper is to implement and control a modified magnetically coupled 'Cuk converter for the optimal charging of a battery. The paper shows how simple modifications in the bidirectional magnetically coupled 'Cuk converter results in a converter that exhibits a fifth order minimum phase behaviour for both buck and boost operation. With the use of a novel feedback clamped controller, the converter is tested for the optimal bidirectional battery charging applications. Steady-state and dynamic analysis of the derived converter is also described. Experimental and simulation results are presented to verify the proposed algorithm. Source


Singh M.,IIT BHU | Gangwar M.,Banaras Hindu University | Nath G.,Banaras Hindu University | Singh S.K.,IIT BHU
Indian Journal of Experimental Biology | Year: 2014

Antimicrobial screening of several novel 4-thiazolidinones with benzothiazole moiety has been performed. These compounds were evaluated for antimicrobial activity against a panel of bacterial and fungal strains. The strains were treated with these benzothiazole derivatives at varying concentrations, and MIC’s were calculated. Structures of these compounds have been determined by spectroscopic studies viz., FT-IR,1H NMR,13C NMR and elemental analysis. Significant antimicrobial activity was observed for some members of the series, and compounds viz. 3-(4-(benzo[d]thiazol-2-yl) phenyl)-2-(4-methoxyphenyl)thiazolidin-4-one and 3-(4-(benzo[d]thiazol-2-yl)phenyl)-2-(4-hydroxy phenyl)thiazolidin-4-one were found to be the most active against E.coli and C.albicans with MIC values in the range of 15.6-125 μg/ml. Preliminary study of the structure-activity relationship revealed that electron donating groups associated with thiazolidine bearing benzothiazole rings had a great effect on the antimicrobial activity of these compounds and contributes positively for the action. DNA cleavage experiments gave valuable hints with supporting evidence for describing the mechanism of action and hence showed a good correlation between their calculated MIC’s and its lethality. ©, National Institute of Science Communication. All rights reserved. Source

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