Results 301 to 310 of about 268,054 (321)

Wildhaber—Novikov circular arc gears: geometry and kinematics

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1986
An 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, Henry Peredur Evans, A. Dyson   +2 more
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Island-arc and underthrust-plate geometry

Tectonophysics, 1974
Abstract 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.
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A novel electrode geometry for high-current vacuum arcs

Journal of Physics D: Applied Physics, 1977
A 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
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Optimal codes, n-arcs and Laguerre geometry

Acta Informatica, 1976
In 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, 2002
Analysis 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, Willi Neff, J. Kiefer, Constantin Gavrilescu   +3 more
openaire   +2 more sources

Effect of electrode geometry on the tanh conductivity arc model

Journal of Applied Physics, 1978
Conservation 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
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Arc lengthening between divergent runners: influence of arc current, geometry, and materials of runners and walls

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

The Geometry of Arc InterruptionߞII Current-Zero Phenomena

Transactions of the American Institute of Electrical Engineers, 1944
During the microsecond period in which an interrupter is performing the act of changing from a conductor to an insulator (termed interruption) the current, voltage, and arc resistance undergo variations which materially affect the performance characteristics of the interrupter.
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Effects of Welding Conditions on Molten Drop Geometry in Arc Welding

Journal of Manufacturing Science and Engineering, 1996
The precise geometry of the molten drop attached to the electrode has substantial influence on the metal transfer. The geometry of the drop is a function of various parameters including the welding current and voltage, composition of shielding gas, electrode extension and material properties of the electrode.
Joo, TM Joo, TM, Yoo, CD Yoo, Choong Don, Lee, TS Lee, TS   +2 more
openaire   +3 more sources

Distance Geometry of Metric Arcs [PDF]

The American Mathematical Monthly, 1957
Leonard M. Blumenthal, William R. Abel
openaire   +1 more source