Results 261 to 270 of about 22,322 (302)
Some of the next articles are maybe not open access.
Geological Society of America Bulletin, 1982
Most variation in geometry and angle of inclination of subducted oceanic lithosphere is caused by four interdependent factors. Combinations of (1) rapid absolute upper-plate motion toward the trench and active overriding of the subducted plate, (2) rapid relative plate convergence, and (3) subduction of intraplate island-seamount chains, aseismic ...
Timothy A. Cross, Rex H. Pilger
openaire +2 more sources
Most variation in geometry and angle of inclination of subducted oceanic lithosphere is caused by four interdependent factors. Combinations of (1) rapid absolute upper-plate motion toward the trench and active overriding of the subducted plate, (2) rapid relative plate convergence, and (3) subduction of intraplate island-seamount chains, aseismic ...
Timothy A. Cross, Rex H. Pilger
openaire +2 more sources
Effect of Electrode Geometry on Arc Flash Protection Boundary
IEEE Transactions on Industry Applications, 2019In arc flash hazards calculations, protection boundary can be used to gain insight in personnel protection against thermal injuries. Although IEEE 1584-2002 has provided the calculation guide based on tests with the arcing electrodes in a vertical plane, applications where the traditional vertical arrangement is not directly applicable have been ...
Zhenyuan Zhang +3 more
openaire +2 more sources
The Effect of Cathode Geometry on Stability of an Atmospheric Pressure Arc
IEEE Conference Record - Abstracts. 1999 IEEE International Conference on Plasma Science. 26th IEEE International Conference (Cat. No.99CH36297), 1999Summary form only given. Atmospheric pressure plasma arcs are used extensively in material processing applications such as welding and metallurgy. An experimental arc furnace operating in air with graphite cathode and steel anode at 100-250 A exhibits large (/spl sim/10% rms) voltage and current fluctuations for certain cathode geometries, with the arc
S. J. Zweben, M. Karasik, L. E. Zakharov
openaire +2 more sources
Wildhaber—Novikov circular arc gears: geometry and kinematics
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1986An exact analysis of the geometry and kinematics of the Wildhaber—Novikov (W. -N.) system of high-conformity gears is described. The techniques of gear analysis developed by Dyson (1969) are used to obtain the shape of the gap between the gear teeth in contact at zero load.
Raymond Walter Snidle +2 more
openaire +2 more sources
Island-arc and underthrust-plate geometry
Tectonophysics, 1974Abstract Geophysical data describing the geometry of underthrust crustal plates at the island arcs are fitted to the relation for strain-free buckling of a thin spherical shell as given by Frank (1968). Agreement of this relation with the data is notable for extensive arcs of large radius.
openaire +2 more sources
A novel electrode geometry for high-current vacuum arcs
Journal of Physics D: Applied Physics, 1977A new electrode geometry, the stirrup, utilizes its own magnetic field to maintain a diffuse high-current vacuum arc at the centre of the electrode system. This arc is reproducible and stable, and the voltage is hash-free. High-speed photographs of a high-current vacuum arc are shown, together with arc voltage and current oscillograms and ...
M R Barrault, C R Melbourne, P D Prewett
openaire +2 more sources
Optimal codes, n-arcs and Laguerre geometry
Acta Informatica, 1976In this paper we give sharp bounds for the block-length n of optimal linear (n, k)-codes over GF(q).
openaire +3 more sources
Arc erosion characteristics of pseudospark discharge in multiaperture geometry
Journal of Applied Physics, 2002Analysis of discharge mechanism in especially designed pseudosparks that facilitate pseudospark characteristic low-erosive conduction at very high currents is presented. The alternate formulation of criterion for transition to arc discharge phase developed here enables us to account for the emergence of arcs at each aperture after a threshold electric ...
Ahmer Naweed +3 more
openaire +2 more sources
Effect of electrode geometry on the tanh conductivity arc model
Journal of Applied Physics, 1978Conservation of energy for the temperature field is solved jointly with conservation of charge for the electrostatic potential for an arc in which the effects of convection and radiation are neglected. The electrical conductivity is modeled by a hyperbolic tangent function.
Bejoy K. Choudhury, Ira M. Cohen
openaire +2 more sources
IEEE Transactions on Components, Packaging, and Manufacturing Technology: Part A, 1998
Arc motion along arc runners enclosing different opening angles from 60/spl deg/ to 150/spl deg/, symmetrically arranged, was investigated in a model switch at currents from 1 kA to 5 kA. Wall distance, wall and runner material were varied. The measured criteria were the lengthening time and the frequency of back-strikes.
E. Gauster, W. Rieder
openaire +2 more sources
Arc motion along arc runners enclosing different opening angles from 60/spl deg/ to 150/spl deg/, symmetrically arranged, was investigated in a model switch at currents from 1 kA to 5 kA. Wall distance, wall and runner material were varied. The measured criteria were the lengthening time and the frequency of back-strikes.
E. Gauster, W. Rieder
openaire +2 more sources