Discrete Variable Frequency Soft Starting on DSP-based Voltage Controller-Fed IM Drive
Abstract
GThyristorized soft starters are being used as inductionmotor starters in fan or pump drives, ere, the principleofwhich is based on the control of variable voltage and constantfrequency. One ofthe demerits of the soft starters is that a smallreduction in voltage produces a considerable drop in electromagnetictorque, which may cause the motor with loads failureto start. A new control strategy is proposed to improve electromagnetictorque at s ....etc

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A Technique for Orthogonal Frequency Division Multiplexing
Frequency Offset Correction

Abstract:
The Orthogonal Frequency Division Multiplexing (OFDM) is a Multi Carrier Modulation technique employing Frequency Division Multiplexing of orthogonal subcarriers. It is also sometimes called as discrete multitone modulation (DMT). It is better than CDMA in high bit rate and Broadband Communications .It is a multi carrier technique, which is very sensitive to Frequency Offset between transmitter and receiver. Th ....etc

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Study of interaction of pacemaker electrode with high frequency RF fields
The influence of radio-frequency fields on pacemaker operation has been studied by many. The need to know about influence of cellular phones on the device operation is the driving force behind these studies. This is serious concerning the safety of the patients. a wide band behavior of pacemaker lead is described in this article to identify and isolate the dangerous frequency bands in the spectrum. Medical and engineering sciences use completely different method ....etc

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ABSTRACT
Transmission lines are considered one of the major sources of magnetic field. In recent years great public concern has arisen because of reports on adverse health effects due to Magnetic fields. The rapid increase of electric energy utilization and ascending geographical growth in the Gulf Cooperation Council (GCC) region led to the reality that utilities need to upgrade and develop existing and new transmission and distribution lines which resulted in the transmission lines to become inside the urban areas. This project is directed ....etc

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Power Frequency Magnetic Fields

Introduction
Power frequency magnetic fields as high as 15,000,000 milligauss are commonly found internally in equipment such as power transformers, motors and generators .Although these fields are almost contained within the equipment ,some leakage will occur. This paper concentrates on magnetic fields in the range of zero to several hundred milligauss.

This level of magnetic field may be experienced by the general public as a result of operation of electrical equipment, current carrying lines, house wir ....etc

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Power frequency magnetic fields as high as 15,000,000 milligauss are commonly found internally in equipment such as power transformers, motors and generators .Although these fields are almost contained within the equipment ,some leakage will occur. This paper concentrates on magnetic fields in the range of zero to several hundred milligauss. This level of magnetic field may be experienced by the general public as a result of operation of electrical equipment, current carrying lines, house wiring, electrical appliances, lighting equipment or an ....etc

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