Improved equation to describe the induction motor currents during nearby three‐phase short‐circuits
IET Electric Power Applications, 2023 This article shows an improved equation to describe the induction motor currents during a three‐phase short‐circuit near to motor terminals. The proposed equation considers three details which are not in the equation shown in the IEEE Std.
Elmer Sorrentino, Andres Vera
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Two interacting spins in external fields. Four-level systems [PDF]
, 2006 In the present article, we consider the so-called two-spin equation that describes four-level quantum systems. Recently, these systems attract attention due to their relation to the problem of quantum computation.
Allen +22 more
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Radiative transfer of acoustic waves in continuous complex media: Beyond the Helmholtz equation [PDF]
, 2016 Heterogeneity can be accounted for by a random potential in the wave equation. For acoustic waves in a fluid with fluctuations of both density and compressibility (as well as for electromagnetic waves in a medium with fluctuation of both permittivity and
Baresch, Diego +3 more
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High Frequency limit of the Helmholtz Equations
Revista Matemática Iberoamericana, 2002 We derive the high frequency limit of the Helmholtz equations in terms of quadratic observables. We prove that it can be written as a stationary Liouville equation with source terms. Our method is based on the Wigner Transform, which is a classical tool for evolution dispersive equations.
Benamou, Jean-David +3 more
openaire +5 more sources
Day-Ahead Scheduling Considering Demand Response as a Frequency Control Resource
Energies, 2017 The development of advanced metering technologies makes demand response (DR) able to provide fast response services, e.g., primary frequency control. It is recognized that DR can contribute to the primary frequency control like thermal generators.
Yu-Qing Bao +4 more
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Resilient modulus and cumulative plastic strain of frozen silty clay under dynamic aircraft loading
SN Applied Sciences, 2021 Article Highlights The empirical equation for resilient modulus and temperature is a segmented function; the segmentation point is − 5 °C. The empirical equation for resilient modulus and frequency is a segmented function; the segmentation point is 2 Hz.
Xiaolan Liu +2 more
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, 2007 Two-frequency radiative transfer (2f-RT) theory is developed for geometrical optics in random media. The space-frequency correlation is described by the two-frequency Wigner distribution (2f-WD) which satisfies a closed form equation, the two-frequency ...
A. C. Fannjiang +8 more
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Accurate Dynamic Analysis Method of Cable-Damper System Based on Dynamic Stiffness Method
BuildingsTo suppress large vibrations of the cable in cable-stayed bridges, it is common to install transverse dampers near the end of the cable. This paper focuses on the cable-damper system; based on the dynamic stiffness method, an accurate dynamic analysis ...
Hui Jiao +4 more
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Hawking radiation power equations for black holes
Nuclear Physics B, 2017 We derive the Hawking radiation power equations for black holes in asymptotically flat, asymptotically Anti-de Sitter (AdS) and asymptotically de Sitter (dS) black holes. This is done by using the greybody factor for these black holes.
Ravi Mistry +3 more
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Computing the spectrum of black hole radiation in the presence of high frequency dispersion: an analytical approach [PDF]
, 1997 We present a method for computing the spectrum of black hole radiation of a scalar field satisfying a wave equation with high frequency dispersion.
G. T. Horowitz +15 more
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