Results 141 to 150 of about 939,565 (189)

Dynamics of the transient regime of spaser

Journal of Communications Technology and Electronics, 2011
The dynamics of the nonradiative excitation of plasmons in the surface plasmon amplifier by stimulated emission of radiation (spaser) that represents a two-level quantum dot in the vicinity of the metal (plasmon) nanoparticle is considered. It is demonstrated that the steady-state generation of spaser is preceded by the regime with the oscillations at ...
E. S. Andrianov, A. A. Pukhov, A. V. Dorofeenko, A. P. Vinogradov, A. A. Lisyansky   +4 more
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The transient regime of a multiwavelength pyrometer

International Journal of Thermophysics, 1993
The transient operation of a new multiwavelength pyrometer based on a dispersing prism and a Si photodiode array is presented. After calibration, transient tests were performed using a tungsten strip lamp, supplied by a current pulse of 0.3-s duration.
P. Coppa, Dai Jinmin, G. Ruffino
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On the reduced moment in the transient regime of homogeneous nucleation

The Journal of Chemical Physics, 2007
One of the parameters characterizing the evolution of nucleation in the transient regime is the so-called reduced moment, a dimensionless quantity. This parameter describes the steepness with which the nucleation rate approaches its steady state. Until recently, very little had been known about this parameter in real systems, although a widely quoted ...
Lawrence S, Bartell, David T, Wu
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Transient regimes in the growth of large‐diameter crystals

Crystal Research and Technology, 1988
AbstractThe behaviour of crystallization rate and interface position under the change of Czochralski growth system parameters is theoretically and experimentally investigated for the case of large diameter crystals growth. It is shown that the large value of crystal diameter leads to the inertia and nonmonotonic character of system relaxation after the
G. H. Nalbandyan, V. A. Nemenov
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Transient Ablation Regime in Circuit Breakers

Plasma Science and Technology, 2007
Nozzle wall ablation caused by high temperature electric arcs is studied in the context of high voltage SF6 circuit breakers. The simplified ablation model used in litterature has been updated to take into account the unsteady state of ablation. Ablation rate and velocity are now calculated by a kinetic model using two layers of transition, between the
Alexandre Martin, Jean-Yves Trepanier, Marcelo Reggio, Guo Xueyan   +3 more
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Generalized hydrodynamics in the transient regime and irreversible thermodynamics

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2004
In this article the thermodynamically consistent formulation of generalized hydrodynamics is reviewed and applications to shock-wave structures, ultrasonic wave absorption and dispersion and microchannel flows of the generalized hydrodynamics so formulated are discussed.
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Induction Motors in Transient Regimes

2001
This chapter deals with the behavior of induction motors operating in the transient regime. The main purpose of transient analysis is to calculate variations in stator and rotor currents as well as variations in torque during the time interval (generally short) in which the drive leaves its old permanent regime to settle down in a new steady state ...
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Laser energy distribution in the transient regime

ILSC 2013: Proceedings of the International Laser Safety Conference, 2013
The period of operation immediately following laser switch-on, while a working population inversion is established and thermal gradients are both created and dissipated, may be defined as the transient regime. During this period the distribution of energy within a laser beam is typically in a state of flux. Depending on the device, a steady-state laser
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Transient and Forced Regimes in the Wake of a Sphere

1998
Despite its practical importance, many fundamental aspects of the wake behind a sphere remain unknown, here we have inquired the transition from steady to periodic flow.
D. Ormieres, M. Provansal, A. Barrantes
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The Role of Transients in Weather Regimes and Transitions

Journal of the Atmospheric Sciences, 1993
Abstract Transition of weather regimes is examined in a highly simplified model. Two completely distinct internal methods of transition are identified. The first is a synoptically triggered large-scale instability, while the second is an energy inconsistency between the large-scale and synoptic scales that does not allow the two scales to equilibrate ...
Brian Reinhold, Shuting Yang
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