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Articles by K. Vijaya Kumar
Total Records ( 2 ) for K. Vijaya Kumar
  A. Vijaya Anand , M. Chandrasekharan , S. Kalavathy , K. Uma , M.P. Saravanan , A. Mohamed Saleem Gani , K. Vijaya Kumar , R. Senthil and P. Sampath Kumar
  The present study was designed to determine the effects of atorvastatin on C-Reactive Protein (CRP) and lipid profile in patients with stroke, since their anti-inflammatory properties have been investigated recently. Ninety five patients with or without stroke were recruited for the study, of which 60 belongs to control (untreated) and 35 were test group (treated) and received daily with 10 mg day-1 of atorvastatin. The patients were followed for over a period of 3 months. For entire study population, CRP along with lipid profile, Serum Glutamic Oxaloacetic Transaminase (SGOT) and Serum Glutamic Pyruvic Transaminase (SGPT) were measured 1st day and at the end of 3rd month of the treatment. Treatment with atorvastatin decreases both inflammatory activity and atherogenic lipoproteins. The results of this study will provide important information on how to maximize the therapeutic benefits of atorvastatin in a broader range of patients at risk for cerebrovascular morbidity and mortality.
  T.M. Thamizh Thentral , R. Jegatheesan and K. Vijaya Kumar
  The quality of the electric power in distribution systems gets retrograded because of the introduction of low order harmonic currents due to non-linearity of adjustable speed drive systems. This substantiality of non-linear loads turns our attention towards power quality in the power distribution systems. In power systems, harmonics are taken as the main problem attributable to the use of power electronic devices in various applications. Active power filters are commonly used to mitigate these harmonics. Three phase shunt active power filters are used to eliminate the harmonics arising due to adjustable speed drive systems fed from voltage source inverter. Synchronous reference frame algorithm is used to extract the compensating currents. The control signal to the three phase shunt active power filter is achieved with the help of hysteresis current control method. The three phase shunt active power filter for current harmonic mitigation with a variable speed drive system as a non-linear load is simulated through MATLAB/Simulink Software and the THD is arrived as per the IEEE 519 recommendations.
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