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Chellaram C.,Vel Technology Multitech Dr Rangarajan Dr Sakunthala Engineering College | John A.A.,St Peters University
2014 International Conference on Science Engineering and Management Research, ICSEMR 2014 | Year: 2014

The present study involved the isolation and structural elucidation of the active constituent of gastropod, Drupa margariticola extract using different Chromatographie techniques and various tools of spectral analysis. The acetone phase of the D. margariticola showed promising activity indicating the presence of active fractions. The active compound, diterpenoid acylglycerol which has been isolated from the gastropod, Drupa margarüicola exhibited broad spectral activity against Salmonella typhimurium, Vibrio cholerae, Bacillus subtilis, with inhibitory zones of 8 mm, 8 and 8 mm, respectively at a concentration of 50μg. © 2014 IEEE. Source


Adaikalam A.,Anna University | Manikandan S.,RMD Engineering College | Rajamani V.,Vel Technology Multitech Dr Rangarajan Dr Sakunthala Engineering College
Advances in Intelligent Systems and Computing | Year: 2015

In an optical network, packet scheduling is a big challenge over the communication. For the requirement to achieve high-speed communication, the network communication society needs the novel scheduler to schedule the variable length of packets in apropos method. The previous scheduling algorithms support mostly fixed size of packet, and it provides low throughput, high waiting time, and high latency. The proposed modified scheduler priority-based multischeduler (PBMS) scheduling algorithm overcomes these disadvantages through the following three methodologies: (i) prioritizer, (ii) splitter, and (iii) Round robin (RR) method; the prioritizer provides priority to the variable length of packets, queue splitter fixes the appropriate queue where the packet has been processed, and RR method assigns a fixed time unit to process the packets in queue with round drip mode. This paper proves the feasibility of our scheduler and comparative experimental results. © Springer India 2015. Source


Mani P.K.,Vel Technology Multitech Dr Rangarajan Dr Sakunthala Engineering College | Siddappa Naidu K.,Vel Tech Dr.RR & Dr.SR Technical University
International Journal of Applied Engineering Research | Year: 2015

Voltage sags and swell are frequent events and are usually associated with fault in network, with energization of transformer or starting of large motors etc. Their duration is very short, but they can represent big problems of sensitive load like power electronic devices. In this paper, a fast PWM-based Dynamic Voltage Restorer (DVR) has been modelled and simulated with a Fuzzy Logic Controller (FLC) to investigate its performance and the relevant results are presented. A multifunctional control system is proposed in which the DVR protects the load voltage using Posicast and fuzzy logic controllers when the source of disturbance in the parallel feeders. On the other hand, during a downstream fault, the equipment protects the PCC voltage, limits the fault current, and protects itself from large fault current. When the fault current passes through the DVR, it acts like series variable impedance. This paper presents the digital modelling and simulation of a FLC-based DVR under voltage sag/swell phenomena. In this case, the fuzzy logic controller has been incorporated instead of conventional PI controller. The simulation tool used is the MATLAB/Simulink Power System Block set (PSB). To mitigate the voltage sag problem, a prototype model has been considered. © Research India Publications. Source


Hariram S.B.,Veltech Hightech Dr Rangarajan Dr Sakunthala Engineering College | Muruga Boopathy G.,Vel Technology Multitech Dr Rangarajan Dr Sakunthala Engineering College | Masi C.,Veltech Hightech Dr Rangarajan Dr Sakunthala Engineering College | Kumar S.T.,Veltech Hightech Dr Rangarajan Dr Sakunthala Engineering College
International Journal of Pharma and Bio Sciences | Year: 2013

The present work has been reviewed to enlighten the possible occupational diseases the IT professionals prone to get. The type of work pressure and its impact on various organs leads to several complications are very well advocated. Health complications such as, the psychosomatic disease, heart ailments, neurological diseases, digestive disorders, ENT and infertility problems are faced by both male and female software employees. Hence this type of study is aimed to enlighten the prophylactic measures to be followed by the software employees to avoid the occupational diseases. The study can be further extended to screen the type of diseases they are prone to get according to the years of service with the help of medical practioner. Source


Hariram S.B.,Veltech Hightech Dr Rangarajan Dr Sakunthala Engineering College | Boopathy G.M.,Vel Technology Multitech Dr Rangarajan Dr Sakunthala Engineering College | Kumar S.T.,Veltech Hightech Dr Rangarajan Dr Sakunthala Engineering College
International Journal of Pharma and Bio Sciences | Year: 2013

Cell phones have become very important communication tool for the reach of common person Now a situation has come that without cell phone one cannot be comfortable both in domestic and business circle. For the past 15 years scientist started working to screen the harmful effects of cell phone radiation. The resulting reports from the study are quite contradictory because majority of studies published have failed to show an association between exposure to radiofrequency [RF] from a cell phone and health problems. While RF energy doesn't ionize particles, but large amounts can increase body temperatures and cause tissue damage. Two areas of the body, the eyes and the testes, are particularly vulnerable to RF heating because there is relatively little blood flow in them to carry away excess heat. Whereas other reports say that Cell phone users had an increased risk of malignant gliomas, acoustic neuromas. But recent reports enlighten that one hour of cell phone use per day significantly increases tumor risk after ten years or more. Further studies explain about the Gene -toxic effect, reduction in reproductive capacity in animal study. Whereas other report is quite encouraging to note that cell phone radiation has not disturbed sleep and cognitive functions. Since the results are quite contradictory, hence it is necessary to review the study related to electro magnetic effect of cell phone on human health to create awareness among the people to give more emphasis on limited use of cell phone to protect innocent future generation of India. Source

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