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Tiruchirappalli, India

John Merina A.,Government College for Women | Sivanesan D.,Tamil University | Hazeena Begum V.,Tamil University | Sulochana N.,Regional Engineering College
E-Journal of Chemistry | Year: 2010

Antioxidant and hypolipidemic activity of the flovone glycoside isolated from Plumeria rubra L. was carried in alloxan induced hyperglycemic rats. The flavonoid treatment produced a significant reduction in the level of serum triglycerides, while there was no reduction in the serum cholesterol and glucose. Antioxidant activity of the drug was also confirmed through in vitro studies.


Dhayalini K.,Annamalai University | Sathiyamoorthy S.,Alagappa Chettiar College of Engineering And Technology | Christober Asir Rajan C.,Regional Engineering College
International Review on Modelling and Simulations | Year: 2014

This paper discusses an Evolutionary Programming Approach to obtain optimal wind and thermal generation dispatch. As wind power penetrations increase in current power systems, its impact to conventional thermal unit should be investigated due to the intermittency and unpredictability of wind power generation. Development of better wind thermal coordination economic dispatch is necessary to determine the optimal dispatch scheme that can integrate wind power reliably and efficiently. In this paper Evolutionary Programming (EP) is utilized to coordinate the wind and thermal generation dispatch and to minimize the total production cost in the economic dispatch considering wind power generation and valve effect of thermal units. Different test system incorporating one wind power plant is utilized for numerical simulation. Different simulations with and without wind power production are simulated. Simulation result shows the effect of wind power generation in reducing total fuel cost. © 2014 Praise Worthy Prize S.r.l. - All rights reserved.


Deepti T.,Amrita University | Deepa K.,Anna University | Deepa K.,Jawaharlal Nehru Technological University Anantapur | Deepa K.,Amrita University | And 4 more authors.
International Review on Modelling and Simulations | Year: 2013

The DC-DC converter of a Spacecraft is one of the vital components of a satellite, which has a major role in ensuring the complete success of the mission. For providing a regulated voltage to various subsystems of satellites with variation in input voltage, DC-DC converter comes in picture. This paper presents the design and implementation of 30W flyback converter for providing supply for the telemetry tracking transmitter subsystem of the satellite. The input EMI filters responses and compensator for PWM UC1825 is simulated in MATLAB. The requirements for space applications are taken into consideration while designing and is successfully implemented. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.


Vijayan A.,Kerala University | Vijayan A.,Amrita University | Deepa K.,Anna University | Deepa K.,Jawaharlal Nehru Technological University Anantapur | And 5 more authors.
International Review on Modelling and Simulations | Year: 2013

A high-efficiency post regulation method for a zero-voltage and zero-current switching (ZVZCS) current-fed push-pull converter is presented. An auxiliary transformer is incorporated as a post regulator. An additional voltage is either added or subtracted by the regulator to the output filter of the push-pull converter. An auxiliary regulator controls this transformer and it handles only a percentage of the total output power. Therefore, compared to a normal pre-regulator, higher efficiency is obtained. Since the converter is designed for high operational frequency the size and weight of the converter can be reduced and in order to reduce the switching losses, soft switching techniques have been employed. The remarkable feature of the paper presented is that zero voltage and zero current switching is not affected in any of the working conditions. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.

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