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857 results for “performance analysis”
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Research ArticleOpen accessAll words, across the recordSimulation Analysis on Proportional Integral and Derivative Control of Closed Loop DC Motor Drive with Bipolar Voltage SwitchingP. Karpagavalli, A. Ebenezer JeyakumarThis study presents the performance of a new four quadrant single phase DC drive closed loop system controlled by proportional integral and derivative controller with Pulse Width Modulation (PWM) full bridge DC-DC converter using bipolar voltage switching. The proposed method is found to be more efficient in improving the step response characteristics such as reducing the settling time, rise time, … …American Journal of Applied Sciences, Vol. 10, Issue 7 · 29 Jun 2013 · 6,908 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordThe Development of Geo-Information System for Finding Potential Zones of Water using Environmental Parameters and EngineeringN. Sundara Rajulu, M. RajaniProblem statement: Water is a major natural resource for all the living beings in the world. People’s lives and livelihood depends on water. Most of the human beings in this world use ground water for drinking purpose. The reason behind that is the ground water is pollution less or less polluted when compared with the surface water. The need for … …American Journal of Applied Sciences, Vol. 9, Issue 9 · 2 Aug 2012 · 7,188 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordDetermination of Pesticide Residues in Banana by Using High Performance Liquid Chromatography and Gas Chromatography-Mass SpectrometryR. Paranthaman, A. Sudha, S. KumaravelProblem statement: The occurrence of endosulfan, carbendazim, chloropyripos in 10 banana samples in southern area of Tamilnadu, India (hill banana, karpuravalli, monthan, nendran, ney poovan, pachanadan, poovan, rasthali, red banana, robusta) was investigated. Approach: In 7 samples, Carbendazim was found at concentrations ranging from 0.002-0.11 mg kg-1. In three samples, carbendazim was not found, whereas endosulfan, chloropyripos was not detected … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 1 · 1 Mar 2012 · 9,544 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordSupplier Selection and Performance Evaluation of Telecommunication CompanyAtefeh Amindoust, Shamsuddin Ahmed, Ali SaghafiniaProblem statement: In today’s manufacturing outsourcing of resources has significant importance. Efficient supplier selection process is a central part in supply chain management for enterprises for outsourcing. Approach: The nature of supplier selection is a multi criteria decision making problem and in the selection process multiple criteria must be considered. In this study a multiple attribute utility theory base on … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 1 · 28 Feb 2012 · 9,339 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordFinite Element Analysis of Large Capacity Endplate Steel ConnectionsMohamed Eldemerdash, Taher Abu-Lebdeh, Moayyad Al NasraProblem statement: Extended endplate connection is one of the most widely used beam-to column steel connections because of its fabrication simplicity, good overall performance and cost effectiveness compared with other connection types. The objective of this research is to develop three-dimensional finite element models to study the behavior of large capacity eight-bolt extended un-stiffened wide endplate steel connections, using current-technology … …Journal of Computer Science, Vol. 8, Issue 4 · 28 Jan 2012 · 6,912 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordMammogram Analysis Based on Pixel Intensity Mean FeaturesR. Nithya, B. SanthiProblem statement: In the recent years, Computer Aided Diagnosis (CAD) can be very useful for detection of breast cancer. Mammography can be used as an efficient tool for breast cancer diagnosis. A computer based diagnosis and classification system can reduce unnecessary biopsy. Approach: This study investigates a new approach to the classification of mammogram images based on pixel intensity mean … …Journal of Computer Science, Vol. 8, Issue 3 · 7 Jan 2012 · 7,666 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordInfluence of Host Plant Species and Flush Growth Stage on the Asian Citrus Psyllid, Diaphorina citri KuwayamaStephen Leong Chan Teck, Abang Fatimah, Andrew Beattie et al.Problem statement: In order to establish the important host range of D. citri, the performance of this psyllid on different rutacous host plants was assessed. Apparent regional differences in host preferences of D. citri as noted above and the need for empirical knowledge of its host preferences in Malaysia where it is lacking. Approach: Experiments on host plant preference between … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 4 · 27 Dec 2011 · 10,043 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordPerformance Evaluation of Wireless Sensor Network Channel in Agricultural ApplicationNaseer Sabri, S. A. Aljunid, R. B. Ahmad et al.Problem statement: In this study, the behavior of small scale fading channel due to a moving sink node of a Wireless Sensor Network (WSN) or moving of surrounding objects is presented. Approach: Specifically, this research introduces the effects of multipath and scattering on the transmitted signal due to mobile sink node within forest or closed field filled of reflectors and … …American Journal of Applied Sciences, Vol. 9, Issue 1 · 24 Nov 2011 · 7,096 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordPower Quality Analysis in 6 MW Wind Turbine Using Static Synchronous CompensatorR. Valarmathi, A. ChilambuchelvanProblem statement: An inherent problem with wind turbine power generation systems is the low power quality due to intermittent power generation in these systems. This not only affects the power generation but also the grid it is connected to. Approach: In this study a configuration consisting of a 6MW Wind Farm based on conventional Fixed Speed Induction Generator is analyzed. … …American Journal of Applied Sciences, Vol. 9, Issue 1 · 23 Nov 2011 · 7,232 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordEngaging People who Drive Execution and Organizational PerformanceOlogbo C. Andrew, Saudah SofianProblem statement: The construct of employee engagement had gained much reputation in recent years among reputable management and human resources consulting firms. Though there is an increasing contributions of few academic research on the construct of employee engagement yet there is a shortage of academic studies on the construct. This gap had made the construct an interesting area of research. … …American Journal of Economics and Business Administration, Vol. 3, Issue 3 · 3 Nov 2011 · 8,259 accessesView PDFCite