نتایج جستجو برای: electrical discharge

تعداد نتایج: 290656  

2013
A. P. Tiwary Abhishek Sinha B. B. Pradhan

Recent trend in reducing the size of products has given Micro Electrical Discharge Machining (MEDM) a significant amount of research attention. Due to the high precision, low tolerance and good surface quality that it can deliver, MEDM is potentially an important process for fabrication of micro-tools, micro-components and parts with micro-features. This paper briefs and highlights the various ...

2008
S. R. Kandel D. P. Subedi

This paper reports the generation of atmospheric pressure gaseous discharge and its electrical characterization. For this purpose, a point-plane electrode system has been fabricated. A high voltage power supply (0-11 kV, 50 Hz) was applied across the electrodes. Discharge was generated with and without the dielectric barrier between the electrodes. The gas discharge was seen as in-homogenous fi...

Journal: :Pacing and clinical electrophysiology : PACE 2005
Wayne C McDaniel Robert A Stratbucker Max Nerheim James E Brewer

Neuromuscular incapacitation (NMI) devices discharge a pulsed dose of electrical energy to cause muscle contraction and pain. Field data suggest electrical NMI devices present an extremely low risk of injury. One risk of delivering electricity to a human is the induction of ventricular fibrillation (VF). We hypothesized that inducing VF would require a significantly greater NMI discharge than a...

Amin Kolahdooz, P. Sadr, S.A. Eftekhari

Electrical discharge machining process, is one of the most widely used methods for machining, the electrically conductive parts. In this way the tool is not in contact with the workpiece and the hardness of workpiece does not affect the machining speed. In Electrical Discharge Machining process, selection of the correct machining parameters are effective in final cost and the quality of the pro...

2014
Sushil Kumar Choudhary R. S Jadoun

Electrical discharge machining (EDM) process is one of the most commonly used nonconventional precise material removal processes. Electrical discharge machining (EDM) is a process for shaping hard metals and forming deep complex shaped holes by arc erosion in all kinds of electroconductive materials. Erosion pulse discharge occurs in a small gap between the work piece and the electrode. This re...

2015
W. H. Lee Y. W. Cheon Y. H. Jo J. G. Seong Y. J. Jo Y. H. Kim M. S. Noh H. G. Jeong C. J. Van Tyne S. Y. Chang

Electrical discharge using a capacitance of 450 μF at 7.0 and 8.0 kJ input energies was applied to mechanical alloyed Ti5Si3 powder without applying any external pressure. A solid bulk of nanostructured Ti5Si3 with no compositional deviation was obtained in times as short as 159 μsec by the discharge. During an electrical discharge, the heat generated is the required parameter possibly to melt ...

Journal: :iranian journal of basic medical sciences 0
guan zeng li department of neurology, liaocheng people’s hospital, 67 dongchang xi road, liaocheng 252000, china zhe hui liu department of cadre health protection, liaocheng people’s hospital, 67 dongchang xi road, liaocheng 252000, china xinya wei department of neurology, second affiliated hospital, harbin medical university, 194 xuefu road, nangang district, harbin 150081, heilongjiang, china pan zhao department of neurology, second affiliated hospital, harbin medical university, 194 xuefu road, nangang district, harbin 150081, heilongjiang, china chun xiao yang department of neurology, second affiliated hospital, harbin medical university, 194 xuefu road, nangang district, harbin 150081, heilongjiang, china man ying xu laboratory of neural algesia electrophysiology, department of physiology, harbin medical university, 194 xuefu road, nangang district, harbin 150081, heilongjiang, china

objective(s):to determine the effect of acetylcholine (ach), pilocarpine, and atropine on pain evoked responses of pain excited neurons (pen) and pain inhibited neurons (pin) in hippocampal ca3 region of morphine addicted rats. materials and methods:female wistar rats, weighing between 230-260 g were used in this study. morphine addicted rats were generated by subcutaneous injection of increasi...

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