Analysis of Voltage Sag in Sub Transmission System

The disturbances created in A C Transmission line power flow due to various faults and unavoidable natural circumstances has to be monitored carefully for uninterrupted power supply to the consumer and to avoid hazardous situations. The subtransmission system with standard 33kv, 66kv, 132kv and 220kv transmission lines which are usually out of sight are considered for analysis purpose. The various faults which occur in transmission lines leading to voltage sag are simulated, modelled and analyzed using MATLAB/SIMULINK tool

IMPLEMENTATION OF RSA KEY GENERATION BASED ON RNS USING VERILOG

RSA key generation is of great concern for implementation of RSA cryptosystem on embedded system due to its long processing latency. In this paper, a novel architecture is presented to provide high processing speed to RSA key generation for embedded platform with limited processing capacity. In order to exploit more data level parallelism, Residue Number System (RNS) is introduced to accelerate RSA key pair generation, in which these independent elements can be processed simultaneously. A cipher processor based on Transport Triggered Architecture (TTA) is proposed to realize the parallelism at the architecture level. In the meantime, division is avoided in the proposed architecture, which reduces the expense of hardware implementation remarkably. The proposed design is implemented by Verilog HDL and verified in matlab. A rate of 3 pairs per second can be achieved for 1024-bit RSA key generation at the frequency of 100 MHz

PEG-400: An efficient and recyclable reaction medium for the synthesis of pyrazolo[1,5-a]pyrimidines

An efficient and convenient route is described for the synthesis of new pyrazolo [1,5-a] pyrimidine derivatives by the reaction of 4-(4’-chloro-phenylazo)-5-amino pyrazole with α,β-unsaturated carbonyl compounds (chalcones) using polyethylene glycol (PEG-400) as benign reaction medium. The advantage of this protocol includes the excellent yields, operational simplicity, short reaction times and avoidance of volatile organic solvents and expensive catalysts

Re-equilibration after quenches in athermal martensites:Conversion-delays for vapour to liquid domain-wall phases

Entropy barriers and ageing states appear in martensitic structural-transition models, slowly re-equilibrating after temperature quenches, under Monte Carlo dynamics. Concepts from protein folding and ageing harmonic oscillators turn out to be useful in understanding these nonequilibrium evolutions. We show how the athermal, non-activated delay time for seeded parent-phase austenite to convert to product-phase martensite, arises from an identified entropy barrier in Fourier space. In an ageing state of low Monte Carlo acceptances, the strain structure factor makes constant-energy searches for rare pathways, to enter a Brillouin zone `golf hole' enclosing negative energy states, and to suddenly release entropically trapped stresses. In this context, a stress-dependent effective temperature can be defined, that re-equilibrates to the quenched bath temperature.Comment: 11 pages, 12 figures. Under process with Phys. Rev. B (2015

CARDIOPROTECTIVE EFFECT OF INDIGOFERA TINCTORIA LINN. AGAINST MYOCARDIAL INFARCTION-INDUCED RATS

  Objective: The aim and objective of the present study are to study the protective effects of ethanolic extract of Indica tinctoria (EEIT) in isoproterenol-induced acute myocardial infarction (AMI) in rats.Methods: The effect of two doses of isoproterenol (5 mg/kg and 8.5 mg/kg body weight) changes in aspartate transaminase (AST), alanine transaminase (ALT), lactate dehydrogenase (LDH), creatine phosphokinase (CPK), and total protein (TP) and lipid hydroperoxides, superoxide dismutase (SOD), and glutathione (GSH) in blood serum and heart homogenate, for the two consecutive days (29 and 30), were administered subcutaneously in rats in pre-treatment with EEIT for the 28-day study.Results: There was increased the AST, ALT, LDH, CPK, and lipid peroxides levels and decreased the TP, SOD, GSH with Isoproterenol-induced group. Pre-treatment for 28 days with Indigofera tinctoria significantly (p<0.05) increased antioxidants (SOD , GSH) , TP levels and decreased the cardiotoxic agents significantly (p<0.05) such as LPO, AST, ALT, LDH, and CPK levels in treatment groups.Conclusion: I. tinctoria contains beneficial bioactive photochemicals that have been protective effective against isoproterenol-induced AMI in rats

2-D IMPLEMENTATION OF DIGITAL GABOR FILTER DESIGN USING VERILOG

Fingerprint or Face Image enhancement using Gabor filter is one of highly computational complexity in fingerprint verification process. Gabor filter has a complex valued convolution kernel and a data format with complex values is used. So implementing Gabor filter is very significant in fingerprint verification process. Designing Gabor filter will help enhancing the quality of fingerprint image. In fingerprint recognition, Gabor filter optimally capture both local orientation and frequency information from a fingerprint image. By tuning a Gabor filter to specific frequency and direction, the local frequency and orientation information can be obtained. Thus, it is suited for extracting texture information from images. This paper presents the implementation of 2-D Gabor Filter design using Verilog HDL. This paper details important enhancement made to the 2D -Digital Gabor filter to minimize the sizing problem and the coding style that synthesizable. The intention is to study, analyze, simplify and improvise the design synthesis efficiency and accuracy while maintaining the same functionality. The result provides area efficiency architecture for the effective design

Audit Committee Quality and Financial Reporting Quality: A Study of Selected Indian Companies

This study examines audit committee quality and its relationship with financial reporting quality. The population of this study consists of the companies listed in Bombay Stock Exchange (BSE) between years 2002 and 2012. Using Godden sample size formula, 133 companies are selected randomly for the study. It is found that in most of the equity based listed companies at BSE under study have complied with the legal formalities, for instance, appointment of independent directors, number of meetings, size of the audit committee, legal qualifications and financial qualifications of the directors, as they were required for the listing at a stock exchange in India. Further, the analysis and tests state that board size, audit committee meetings and its size have relationship with the financial reporting practices, but the CEO tenure and hold, board independence, net income, proportion of independent directors on board, legal qualifications and financial qualifications of the directors and overlap of audit committee members on compensation committee, have no influence on the financial reporting practices. Thus, it may be inferred that the companies may improve the financial reporting quality, by managing the board size, audit committee meetings and size, as these characteristics have significant relationship with financial reporting quality

Medical termination of pregnancy and subsequent adoption of contraception

Background: The reasons for seeking MTP ranged from proximate causes such as desire to limit family size or space pregnancies, seeking abortion for medical reasons or availing it on medical advice to distal determinants such as poverty, violence and belief system. Therefore, the present study was undertaken to study the factors influencing MTPs & the subsequent adoption of contraceptive methods following MTP.Methods: The study subjects included women who underwent MTP at the hospital during the study period. The details regarding their socio demographic profile, previous obstetric history, reason for seeking abortion and acceptance of post abortal contraception were taken.Results: 103 women who sought MTP during the study period were included in the study. Among the MTP seekers 22 (21.4%) women had history of one or more abortions in the recent past. Most of the study subjects i.e., 41 (39.8%) sought MTP for socio-economic reasons. The other conditions were eugenic reasons among 40 (38.9%) and medical reasons 10 (9.1%), only 12 (11.6%) women sought MTP for contraceptive failure. Adoption of contraception following MTP was seen only among 52 (50.5%).Conclusions: Eligible couples have to be educated regarding the availability of different methods of contraceptives and their proper use to avoid pregnancy as long as they want. Similarly, all MTP seekers should be provided information and counseling for post-abortal contraceptive use and enable these women and their spouse to make an informed and voluntary choice and thus avoid the need of a repeat abortion.