14 articles for “Rekha”

Research ArticleOpen accessIn the author namesExploration of Preliminary Phytochemical Studies of Seed of syzygium cuminiKrishna Murti, Deepika Paliwal, Shyna Madan et al.Problem statement: The investigation for possible Preliminary Pharmacognostical and phytochemical activity of seeds of Syzygium cumini were performed to lay down the standards which could be useful in future experimental studies. Approach: The study includes macroscopy, microscopy, preliminary phytochemical screening and physicochemical evaluation of seeds of Syzygium cumini. Results: The results were discussed for both the extracts in terms of … …American Journal of Pharmacology and Toxicology, Vol. 7, Issue 1 · 6 Mar 2012 · 7,877 accessesView PDF Cite

Research ArticleOpen accessIn the author namesAnalysis of a Two Unit Standby Oil Delivering System with a Provision of Switching Over to another System at Need to Increase the AvailabilityUpasana Sharma, Rekha, Gulshan TanejaProblem statement: The study deals with a standby system consisting of two units. Initially one unit is operative and the other is standby. When both the units are failed then there is a provision of switching over to the other similar system. This practical situation may be observed in an oil refinery plant. Real data on failure and repair rates … …Journal of Mathematics and Statistics, Vol. 7, Issue 1 · 31 Jan 2011 · 7,107 accessesView PDF Cite

Research ArticleOpen accessIn the author namesOptical Nonlinear Proreties and Optical Limiting Effect of Metanil YellowR. K. Rekha, A. RamalingamProblem statement: The third order nonlinear optical properties of organic polymers are used in high speed telecommunication, optical limiters and optical computers. The purpose of the study was to determine the third order nonlinear characteristics and optical limiting effect of the organic dye, metanil yellow in liquid and solid medium. Approach: The samples were prepared by dissolving the dye in … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 18 Jun 2009 · 7,719 accessesView PDF Cite

Research ArticleOpen accessIn the author namesA Switching Mechanism Detection to Reduce Complexity in Multiuser Detection for DS-CDMA SystemsRekha Agarwal, B. V.R. Reddy, K. K. AggarwalWe present a reduced complexity switching mechanism which uses either matched filter or Parallel Interference Cancellation (PIC) detector based on channel characteristics. The main criterion of taking PIC detector is that it has less Bit Error Rate (BER) and less processing delay than other nonlinear multiuser detectors. This proposed detector reduces overall complexity while maintaining the same performance as PIC … …Journal of Mathematics and Statistics, Vol. 2, Issue 2 · 30 Jun 2007 · 6,641 accessesView PDF Cite