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Analysis of rocket-engine transient regimes
Acta Astronautica, 1977Abstract Three rocket propulsion systems are reviewed with a view to help designers in their projects, emphasizing the points they have in common and also their differences. (i) Hydrazine decomposition engines: ignition and extinction are examined, as well as thrust modulation by injection rate variations. The unstable functioning domains are defined.
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Transient regime in second harmonic generation
Optics Communications, 2013Abstract The time growth of the electromagnetic field at the fundamental and double frequencies is studied from the very onset of the second harmonic generation (SHG) process for a set of dipoles lacking a symmetry centre and exhibiting a nonresonant coupling with a classical electromagnetic field.
Szeftel, Jeremie +4 more
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Transient regime of hot carriers in InP
Semiconductor Science and Technology, 1992A direct numerical method is developed for solving the electron transient coupled Boltzmann equations in the Gamma and L valleys in InP. The complicated shape of the transient distribution function is obtained with a great accuracy. Fine structures of the velocity and the energy are obtained in the Gamma and L valleys when the population of L valleys ...
J C Vaissiere, M Elkssimi, J P Nougier
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Transient dynamics of the wavy regime in Taylor–Couette geometry
European Journal of Mechanics - B/Fluids, 2012zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kádár, Roland, Balan, Corneliu
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Pressure Transient Tests and Flow Regimes in Fractured Reservoirs
SPE Annual Technical Conference and Exhibition, 2013Abstract Fractures are common features in many well-known reservoirs. Naturally fractured reservoirs consist of fractures in igneous, metamorphic, and sedimentary rocks (matrix). Faults in many naturally fractured carbonate reservoirs often have high-permeability zones and are connected to numerous fractures that have varying ...
Fikri Kuchuk, Denis Biryukov
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Diffusion in the transient dynamic response regime
Physics Letters A, 1980Abstract An ensemble Monte Carlo approach is used to calculate the diffusion of a pulse of carriers in GaAs. On short-time scales, comparable to the relaxation times, the non-stationary diffusion process is non-markovian in space and appears not to obey a stationary-state definition of the Einstein relation.
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Transient Regimes Analysis for a Diesel Engine
Advanced Materials Research, 2013A computer analysis has been developed for studying the energy and exergy performance of an direct-injection, naturally-aspirated diesel engine operating under transient load or speed conditions. The model is validated at steady-state operation and incorporates many novel features for simulating the transient response and analyzing all of the engine ...
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Phonon Spectrum and Transient Regimes in the KCM
2018The goal of reduce the device sizes and obtain faster performance has caused that recent experiments are moving the focus to measurements at short length and time scales [1–7]. This makes it necessary to have a model which is able to work in the transient regime between diffusive and ballistic heat transport.
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The Gulf of Lion, under a transient regime
Significant changes occured in the Mediterranean region from ca. 30-35 Ma, marked by the onset the African slab retreat beneath several orogenic segments and the inception of back-arc extension in the upper plate. In the western Mediterranean, extensional tectonics has been responsible for opening of the Liguro-Provençal basin and the rotationAgathe Jullien-Sicre +5 more
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