Results 251 to 260 of about 1,136,817 (291)

Arc Propagation Along an Electrolyte Surface

Proceedings of the Institution of Electrical Engineers, 1971
Flashover of wet polluted insulation is caused by the propagation of arcs along the wet surface. The paper describes experimental work which has been carried out with simple models to investigate the conditions under which arc propagation occurs. It has been found that arc propagation can be explained in terms of a new mechanism which may be called ...
R Wilkins
exaly   +2 more sources

Energy Released During Arc Crack Propagation

International Journal of Fracture, 2002
The problem of circular arc cracks in a homogeneous medium is revisited. An unusual but simple method to calculate the energy change due to arc crack propagation along a circle is illustrated based on the earlier work of Sih and Liebowitz (1968). The limiting case of crack of angle 27pi is shown to correspond with the problem of a circular hole in a ...
Prasad, PBN, Simha, KRY
openaire   +2 more sources

Experimental Investigation of the Process of Arc Propagation Over an Ice Surface

IEEE Transactions on Dielectrics and Electrical Insulation, 2010
In this paper, some of the characteristics of an arc propagating over an ice-covered insulator surface were investigated. Special attention was paid to the arc root and channel characteristics. All experiments were performed on a simplified physical model to simulate real ice-covered insulators.
Issouf Fofana
exaly   +2 more sources

Arc Propagation Along an Electrolyte Surface

Proceedings of the Institution of Electrical Engineers, 1972
R Wilkins
exaly   +2 more sources

Propagation of AC arc on ice surfaces

Conference Record of the 1998 IEEE International Symposium on Electrical Insulation (Cat. No.98CH36239), 2002
The arc propagation velocity is one of the important parameters for studying flashover in air. Using a high-speed frame camera and a triangular ice sample, arc propagation on ice surfaces was investigated. It was found that the AC arc propagation process is a two-stage process; first, at a relatively low velocity, and second, when the critical length ...
M. Farzaneh, J. Zhang
openaire   +1 more source

Cathodic arc jet propagation in quiescent air

Journal of Physics D: Applied Physics, 2019
Abstract When operating a cathodic arc discharge in quiescent air, a high-speed jet of gas is produced near the cathode, known as the cathodic arc jet (CAJ). To obtain time resolved measurements of the CAJ propagation, a high-resolution spatial spectroscopy technique was implemented.
Anton Ronis, Igal Kronhaus
openaire   +1 more source

Arc-Consistency + Unit Propagation = Lookahead

2004
Arc-consistency has been one of the most popular consistency techniques for space pruning in solving constraint satisfaction problems (CSPs), while lookahead appears to be its counterpart in answer set solvers. In this paper, we perform a theoretical comparison of their pruning powers, based on the translation of Niemela from CSPs to answer set ...
Jia-Huai You, Guiwen Hou
openaire   +1 more source

Harmonic Wave Propagation of Ultrasonic Arc Stators

Aerospace, 2003
A piezoelectric curvilinear arc stator designed for an ultrasonic curvilinear motor is studied in this research. Design of piezoelectric curvilinear arc stator is proposed and its governing equations and vibration behavior are investigated. Then, analysis of forced vibration response or driving characteristics to harmonic excitations in the modal ...
P. Smithmaitrie, J. G. DeHaven, K. Higuchi, H. S. Tzou   +3 more
openaire   +1 more source

The Effects of Material at Arc Site on ESD Propagation

IEEE Transactions on Plasma Science, 2017
In the past few years, the Aerospace Corporation and other labs have been exploring how electrostatic discharges propagate over the surface of a positively charged dielectric surfaces, like solar arrays, on a spacecraft. One goal of these explorations is ultimately to aid in the extrapolation of transient currents measured on coupons in the laboratory ...
Jason A. Young, Mark W. Crofton
openaire   +1 more source

Arbitrary Polynomial Chaos for Short-Arc Orbital Uncertainty Propagation

2018 IEEE Conference on Decision and Control (CDC), 2018
Space object uncertainty propagation is critical to space situational awareness. However, due to a large number of space objects and limited available sensors, observations of a certain space object are sparse. As a result, short-arc orbit uncertainty propagation is common.
Bin Jia, Ming Xin 0001
openaire   +1 more source