Results 271 to 280 of about 1,479,501 (330)
Some of the next articles are maybe not open access.
The Geometry of Arc Interruption
Transactions of the American Institute of Electrical Engineers, 1941It is the purpose of this paper to present a rigorous analysis and description of the phenomenon which takes place in an interrupting device during the interval between the parting of the contacts and the current zero at which interruption takes place.
openaire +4 more sources
The effect of cathode geometry on the stability of arcs
Journal of Physics D: Applied Physics, 1969A new technique is presented for stabilizing free-burning d. c. arcs between graphite electrodes in the current range 400-2000 A. The stability of the arcs is shown to be critically dependent on the cathode geometry, and the possible factors influencing the motion of the arc are discussed.
C M H Sharp, R W Montgomery
openaire +2 more sources
Numerical Analysis of Arc Geometry Variations on Bending Stability in Tied-Arch Bridges
G-TechTied-arch bridges are bridges that have high structural efficiency, but are prone to bending instability. This study aims to analyse the relationship between arc geometry variations and the bending stability of tied-arch bridges using the Finite Element ...
Izatullilah Izatullilah +3 more
semanticscholar +1 more source
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
Plasma Sources Science & Technology, 2022
In this work, on the basis of a unified model from the point of view of describing the gas discharge gap and electrodes for 2D geometry, numerical calculations were carried out to study various modes of direct current discharges in argon at atmospheric ...
A. Saifutdinov
semanticscholar +1 more source
In this work, on the basis of a unified model from the point of view of describing the gas discharge gap and electrodes for 2D geometry, numerical calculations were carried out to study various modes of direct current discharges in argon at atmospheric ...
A. Saifutdinov
semanticscholar +1 more source
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