Results 281 to 290 of about 18,438,198 (314)
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State of the theory of vacuum arcs
IEEE Transactions on Plasma Science, 2001A review of vacuum arc phenomena including the cathode and anode processes with cold and hot electrodes as well as the processes in the interelectrode plasma is presented. In the case of cold electrodes, the current continuity mechanism, the nature of mass loss, spot motion, plasma jet generation in the spots, and the cathode potential drop are ...
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[The present state of vacuum sealing].
Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen, 2004In cases of extended post-traumatic soft-tissue and bone loss as well as with mutilating infection or radical tumor resection, multidisciplinary options are required to salvage extremities and functional rehabilitation. A surgical team approach allows for reduction of amputation rates, wound healing complications, and secondary procedures in limb ...
J, Tautenhahn, T, Bürger, H, Lippert
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Lifetime of metastable vacuum states
Physical Review D, 1978We analyze the decay of a false vacuum into a true vacuum. We do this by obtaining the time-dependent field configurations in Minkowski space, and then constructing an effective one-parameter Hamiltonian to describe the transition. In 1 + 1 dimensions, we use the semiclassical approximation to obtain the barrier-penetration factor, the coefficient, and
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AN APPARATUS FOR VACUUM DRYING IN THE FROZEN STATE
Science, 1942E E, Hays, F C, Koch
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Density-Dependent Vacuum Transitions: Vacuum-State Coalescence
Standard cosmology presents us with one of the most profound challenges in all of science: how do we begin to think about the Big Bang itself, or the pre-geometric state that preceded it? How do we reason about a condition in which space, time, and physical law had not yet taken the form we know, where the very substrate of reality was something ...openaire +2 more sources
The vacuum state control in magnetron
2012 International Conference on Actual Problems of Electron Devices Engineering, 2012The technique of a residual gases pressure indirect estimation in an operational mode magnetron is resulted.
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Vacuum education in the United States
Vacuum, 1955Abstract training in vacuum technology in the U.S.A. is discussed, taking into consideration universities, industries using vacuum processes, vacuum equipment manufacturers, industrial research laboratories, Atomic Energy Commission installations and laboratories operated by the U.S. Government.
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A vacuum-like state of the medium and cosmological vacuum
Russian Physics Journal, 2008openaire +1 more source