نتایج جستجو برای: electric line

تعداد نتایج: 548601  

Journal: :Environmental Health Perspectives 1995
P Levallois D Gauvin J St-Laurent S Gingras J E Deadman

The purpose of this study was to assess the effect of a 735-kV transmission line on the electric and magnetic field exposures of people living at the edge of the line's right of way. Exposure of 18 adults, mostly white-collar workers, living in different bungalows located 190-240 feet from the line (exposed subjects) was compared to that of 17 adults living in similar residences far away from a...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1990
B Bratton J Bastian

The nucleus praeeminentialis projects to the electrosensory lateral line lobe via 2 distinct pathways. Neurons that project to the posterior eminentia granularis and therefore influence the electrosensory lateral line lobe indirectly are described in the preceding report. This report describes the physiological properties and anatomical characteristics, revealed with Lucifer yellow staining, of...

2003
R. W. P. King Gordon McKay D. Margetis

After a review of work leading to the determination of the electric field induced in the human body when exposed to the electromagnetic field near an extremely-low-frequency high-voltage transmission line, attention is directed to a spherical cell exposed to the electric field in the body. Following a brief discussion of the potential biological significance of the study, the electric field act...

1999
Ting Zhu Wei Yang

The intrinsic coupling between the mechanical and the electric _elds assigns a unique feature for the fracture in a piezoelectric solid[ We model the kink of a crack by continuous distribution of edge dislocations and electric dipoles[ The problem admits an approach based on the Stroh formalism[ A set of coupled singular integral equations are derived for the dislocation and electric dipole den...

Journal: :Optics letters 1999
J I Dadap J Shan A S Weling J A Misewich A Nahata T F Heinz

We present a scheme for the determination of the vector nature of an electric field by optical second-harmonic generation. We demonstrate the technique by mapping the two-dimensional electric-field vector of a biased transmission line structure on silicon with a spatial resolution of ~10mum .

2004
Ismael V. L. Costa Fernando A. Oliveira Fernando Moraes

We study the effect of the geometry and topology of a scalar-tensor cosmic string space-time on the electric and magnetic fields of line sources. The influence of the dilaton field both on electric and magnetic self-forces is quite remarkable in the region near the defect, where their behavior is inverted as compared to the far region.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - پژوهشکده ریاضیات 1392

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2015
B. Vidya Sagar

Because of the development of electric power industry accurate analysis of incipient faults in generators becomes very important. This paper presents a method for simulating the internal faults in synchronous generators using artificial intelligence technique. The internal faults like single line to ground, double line to ground & triple line to ground of generator stator current, rotor speed, ...

2006
GHEORGHE LIVINŢ VASILE HORGA MIHAI ALBU

This paper presents a methodology of rapid testing for different control algorithms of electrical drives with inverter-fed induction motors used for the propulsion of hybrid electric vehicles. For analysis, modeling and off-line simulation of the vehicle operations conditions, and also for the testing in real time of the control algorithm performance certain hardware/software products COTS (ADV...

2004
A. M. Sharaf T. T. Lie

Abstmct The paper preknts a novel AI-ANN neural network global on-line fault detection, pa& tern classification, and relaying detection acheme for synchronous generators in interconnected electric utility networks. The input discriminant vector comprises the dominant FFT frequency spectra of eighteen input variables forming the discriminant diagnostic hyperplane. The on-line ANN based relaying ...

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