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Effect of powder particle concentration, pulse duration, and pulse current on machined surface characterization produced via EDM of biocompatible WE-43Mg alloy. [PDF]
Sci RepKhan SA +4 more
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Journal of Electrostatics, 2020
Abstract Electric sparks can ignite fires, initiate explosions, shock humans. These discharges release energies through very complex dynamic processes. The effects of changing energy (capacitance and voltage) and electrode parameters on spark discharge characteristics are investigated. A multi-energy high-voltage ignition system is built.
Jia Liu +3 more
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Abstract Electric sparks can ignite fires, initiate explosions, shock humans. These discharges release energies through very complex dynamic processes. The effects of changing energy (capacitance and voltage) and electrode parameters on spark discharge characteristics are investigated. A multi-energy high-voltage ignition system is built.
Jia Liu +3 more
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The Miller Volcanic Spark Discharge Experiment
Science, 2008Miller's 1950s experiments used, besides the apparatus known in textbooks, one that generated a hot water mist in the spark flask, simulating a water vapor‐rich volcanic eruption. We found the original extracts of this experiment in Miller's material and reanalyzed them.
Adam P, Johnson +5 more
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Development of Spark Discharges
Nature, 1948IN a recent communication1 concerning the mechanism of growth of the leader strokes preceding spark discharges, Allibone has stated that the leader stroke develops behind a voluminous corona discharge and that the concentrated bright streamer, which is readily photographed, is in the nature of a ‘core' to this corona.
R. F. SAXE, J. M. MEEK
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Modeling laboratory negative long spark discharges
2009 IEEE Conference on Electrical Insulation and Dielectric Phenomena, 2009This paper is aimed at comparing some results derived from a self consistent model developed to simulate dynamically the successive phases of negative laboratory long spark with experimental results reported elsewhere. This model includes criteria for instabilities and arrest conditions.
Beroual, Abderrahmane +2 more
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Power Measurements of Spark Discharge Experiments
Origins of life and evolution of the biosphere, 1998An accurate and precise knowledge of the amount of energy introduced into prebiotic discharge experiments is important to understand the relative roles of different energy sources in the synthesis of organic compounds in the primitive Earth's atmosphere and other planetary atmospheres.
R, Navarro-Gonzalez, A, Romero, Y, Honda
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Laser spark initiated microwave discharge
Technical Physics Letters, 2010The process of laser-spark-assisted initiation of microwave (MW) discharge in the free space has been experimentally studied. It is established that a threshold for laser-spark-initiated MW discharge at atmospheric pressure decreases in a broad range of MW pulse delay times relative to the laser pulse.
S. A. Afanas’ev +2 more
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Physics World, 1991
I refer to the article by Keith Davies and Jason Kerr (February, Physics in Action p35). Based on work carried out many years ago for electrically sensitive explosives, the capacitance of the human body in explosive environments is generally taken as 500 pF and the likely maximum electrostatic charge potential as 10 kV, giving a stored energy of 25 mJ.
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I refer to the article by Keith Davies and Jason Kerr (February, Physics in Action p35). Based on work carried out many years ago for electrically sensitive explosives, the capacitance of the human body in explosive environments is generally taken as 500 pF and the likely maximum electrostatic charge potential as 10 kV, giving a stored energy of 25 mJ.
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Excitation temperatures in spark discharges
Spectrochimica Acta, 1957Abstract The paper describes measurements of spectral line intensities in the vapour clouds emitted from the electrodes in controlled spark discharges carrying a current of rectangular pulse shape. Measurements were made during current flow and in the afterglow for the whole discharge and with spatial resolution.
C.M. Cundall, J.D. Craggs
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