Results 251 to 260 of about 846,677 (301)

Effects of electrical stressing in power VDMOSFETs☆

Microelectronics Reliability, 2004
Abstract The effects of gate bias stressing on threshold voltage and mobility in power VDMOSFETs and underlying changes in gate oxide-trapped charge and interface trap densities are presented and analysed in terms of the mechanisms responsible. It is shown that gate bias stressing causes significant threshold voltage shift and mobility degradation in
Stojadinovic, N, Manic, I, Davidovic, V, Dankovic, D, Djoric-Veljkovic, S, Golubovic, S, Dimitrijev, S   +6 more
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Polyethylene under electrical stress

IEEE Transactions on Dielectrics and Electrical Insulation, 2002
Fifty years ago, the concept of an intrinsic electric strength for insulating solids was fashionable. It was supported by the sophisticated theoretical models of von Hippel, Frohlich and others for the interaction of electrons with crystal lattices in an electric field. The models came to be applied, rather implausibly perhaps, to polymers such as semi-
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Transcutaneous Electrical Nerve Stimulator for Stress Incontinence

Journal of Urology, 1981
It has been shown that some patients with stress incontinence after prostatectomy may have significant improvement with electrical anal stimulation. The use of a transcutaneous stimulator is the easiest and least invasive method to try initially. Results may be quite satisfying whether the mechanism is physiologic or placebo.
D J, Krauss, O M, Lilien
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Electric Stresses in Cables

Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1962
Two theories of electrical failures in cables, at test voltages, are presented; one, known as the maximum stress theory, is based on critical potential gradients, and the other, known as the ballast theory, is based on critical current densities.
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Electrical stress on insulators of the vivitron

The eighth international conference on heavy-ion accelerator technology, 1999
The Vivitron is a large electrostatic accelerator in operation under high voltage since December 1990. Since then, the machine sustained more than 750 sparks and operated more than 17 000 hours at voltages up to 20 MV. The paper presents a review of the electric stresses applied on the insulators of that particular HV generator following the ...
Osswald, F., Heugel, J., Jegham, E., Lahera, N., Rebmeister, R., Zouloumian, P.   +5 more
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Electrical Measurement of Stresses

Aircraft Engineering and Aerospace Technology, 1943
ECONOMY in the use of engineering materials calls for a very accurate knowledge of the stresses arising in machinery and structural parts. The forces acting on the part are frequently impossible to determine and vary in their effect according to their static or dynamic nature.
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Posttraumatic Stress Disorder in Electric Burn Patients

Journal of Burn Care & Rehabilitation, 1986
It was hypothesized that burn injuries electric in origin may have a poor prognosis for rehabilitation and return to work. Ten electrically injured burn patients were compared to seven patients whose burns were nonelectric, after all 17 had shown clinically significant emotional problems during rehabilitation.
H R, Mancusi-Ungaro, A R, Tarbox, D J, Wainwright   +2 more
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Provocation With Stress and Electricity of Patients With ???Sensitivity to Electricity???

Journal of Occupational and Environmental Medicine, 2000
Twenty-four patients with self-reported "sensitivity to electricity" were divided into two groups and tested in a double-blind provocation study. These patients, who reported increased skin symptoms when exposed to electromagnetic fields, were compared with 12 age- and sex-matched controls.
S, Lonne-Rahm, B, Andersson, L, Melin, M, Schultzberg, B, Arnetz, M, Berg   +5 more
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MIM capacitance variation under electrical stress

Microelectronics Reliability, 2003
Abstract Due to strong requirement in term of capacitance voltage linearity, MIM capacitance stability during the whole operating lifetime of the product appears to be a key issue to warrant the reliability of this device. Using a constant current stress, two effects can be noticed on the evolution of the stressed C–V characteristics: a voltage shift
C. Besset, S. Bruyère, S. Blonkowski, S. Crémer, E. Vincent   +4 more
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Electric stress and heat transfer

British Journal of Applied Physics, 1959
Apparent contradictions in published reports of the effect of electric stress on heat transfer in fluids have been resolved by small-scale experiments and by reanalysis of available data. The effect of deliberately mixed unidirectional and alternating stress has been investigated for the first time.
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