نتایج جستجو برای: high voltage electrical field

تعداد نتایج: 2891505  

2010
Rick van Kessel

This research focusses on the conversion process from mechanical wave energy to electrical energy using an innovative approach with Dielectric Electro Active Polymers (DEAP). These materials have shown great potential as deformable electromechanical actuator devices, however, the generator mode is unexplored yet. Such a deformable DEAP structure could offer distinctive advantages in wave energy...

2003
H. R. ZELLER

We present a general model for cosmic ray induced failures in high voltage devices. The only relevant model assumption is that the local probability depends only on the local electrical field. This model leads to a universal master curve for the failure rates of GTO's, thyristors and diodes. The IGBT is more complex because of the complex field distribution. The predicted and observed failure r...

2007
Nebojša RAIČEVIĆ Slavoljub ALEKSIĆ Aleksandra Medvedeva

The problem of electric field grading in cable components, having both theoretical and technological implications, can be framed in more general topic of field control in HV equipment. A solution may be obtained by two possible approaches: using geometric field control [11, 13, 14, 15, 17, 18], in which the field distribution depends on the arrangement of main and auxiliary electrodes or using ...

2001
Carlos Garrido Antonio F. Otero

The relationship between magnetic fields and the health of people is increasingly being investigated. International organizations have proposed bylaws that put limits on the value of the generated magnetic field. In this work, we measure the magnetic field created by electrical appliances and high voltage lines and we analyze the degree of compliance with recent applicable European regulation. ...

2012
Brinda Bhowmick Srimanta Baishya

This paper focuses a hetero gate material dielectric DG TFET with low band gap source material, which offers high / on off I I ratio, sub 60mV/dec subthreshold swing along with significant improvement in on current. Here analytical model for 2D electric field is derived from Poisson’s equation and is used to determine the subthreshold swing, transconductance, output conductance, gate threshold ...

2004
D. C. Chauhan P. S. Chari G. K. Khuller Dalbir Singh

Electrical injuries due to high-tension voltage (>1000 volts) cause destruction at the point of contact with massive necrosis of deeper structures such as muscles, vessels and nerves. Rhabdomyolysis due to massive breakdown of skeletal muscles may lead to acute renal failure secondary to myoglobinuria. The study was undertaken to observe the correlation of renal complications with extent and pr...

2012
Ioannis Alexandros Tsekmes Dennis van der Born

ii Τὸ εὖ γίνεσθαι μὲν παρὰ μικρόν, οὐ μὴν μικρὸν εἶναι. Abstract The world's first commercial High Voltage Direct Current (HVDC) transmission link was built in 1954 between the Swedish mainland and the island of Gotland. At that time, it was proved that HVDC transmission is technically feasible. Since then, HVDC cable systems have been used worldwide in electrical energy transportation. Most HV...

Journal: :international journal of advanced design and manufacturing technology 0
ahmad haghani department of mechanics, faculty of engineering, shahrekord branch, islamic azad university, shahrekord, iran

strip tearing during cold rolling process has always been considered among the main concerns for steel companies. several works have been done so far regarding the examination of the issue. in this paper, experimental data from cold rolling tandem mill is used for detecting strip tearing. sensors are placed across the cold rolling tandem mill. they receive information on parameters (such as ang...

2015
Douglas A. Storace Oliver R. Braubach Lei Jin Lawrence B. Cohen Uhna Sung

Understanding the roles of different cell types in the behaviors generated by neural circuits requires protein indicators that report neural activity with high spatio-temporal resolution. Genetically encoded fluorescent protein (FP) voltage sensors, which optically report the electrical activity in distinct cell populations, are, in principle, ideal candidates. Here we demonstrate that the FP v...

2014
Ronggen Cao Gaoshan Huang Zengfeng Di Guodong Zhu Yongfeng Mei

The paper reported the fabrication and operation of nonvolatile ferroelectric field effect transistors (FeFETs) with a top gate and top contact structure. Ultrathin Si nanomembranes without source and drain doping were used as the semiconducting layers whose electrical performance was modulated by the polarization of the ferroelectric poly(vinylidene fluoride trifluoroethylene) [P(VDF-TrFE)] th...

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