Results 21 to 30 of about 2,048,363 (280)
Energies, 2021 We developed an International Electrotechnical Commission (IEC) 61850-based centralized protection scheme to prevent single line-to-ground (SLG) faults in the feeders and busbars of ungrounded distribution systems.
Soon-Ryul Nam +4 more
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On the zeros of a special sequence of polynomials [PDF]
Mathematics of Computation, 1982 The zeros of the polynomials P n ( z ) = Σ k = 0 n − 1 z 2
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Linear recurrence sequences without zeros [PDF]
Czechoslovak Mathematical Journal, 2014 There are two main results in the paper. In order to quote them we recall the following. Given a positive integer \(d\) and \(2d\) fixed integers \(a_0,\dots ,a_{d-1}\) and \(x_0,\dots ,x_{d-1}\) with nonzero \(a_0\); a linear recurrent sequence \((x_n)\) of order \(d\) is defined by these data if \[ x_{n+d}=\sum_{j=0}^{d-1}a_jx_{n+j} \] for all ...
Dubickas, Artūras, Novikas, Aivaras
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Вестник Северо-Кавказского федерального университета, 2022 The article presents a technique for assessment the level of consumers’ impact on the voltage asymmetry by the zero sequence at the point of common connection. The results of a computational experiment that determine the possibility of using the level of
Dmitrii Kostyukov
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The effect of points fattening on Hirzebruch surfaces [PDF]
, 2013 The purpose of this note is to study initial sequences of zero-dimensional subschemes of Hirzebruch surfaces and classify subschemes whose initial sequence has the minimal possible growth.Comment: 9 ...
Di Rocco, Sandra +2 more
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Border Basis relaxation for polynomial optimization [PDF]
, 2014 A relaxation method based on border basis reduction which improves the efficiency of Lasserre's approach is proposed to compute the optimum of a polynomial function on a basic closed semi algebraic set.
Bucero, Marta Abril, Mourrain, Bernard
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Pre-mainsequence stellar evolution in N-body models [PDF]
, 2014 We provide a set of analytic fits to the radii of pre-mainsequence stars in the mass range 0.1 < M/Msun < 8.0. We incorporate the formulae in N-body cluster models for evolution from the beginning of pre-main sequence. In models with 1,000 stars and high
Aarseth, Sverre J. +2 more
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Design of a mine-used low-voltage leakage protection device
Gong-kuang zidonghua, 2020 In view of low reliability of leakage protection device of coal mine low-voltage power grid based on line selection principle of zero-sequence power direction, a hardware and software design scheme of mine-used low-voltage leakage protection device was ...
ZHENG Qingle +3 more
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Pattern Frequency Sequences and Internal Zeros
Advances in Applied Mathematics, 2002 Consider the number of permutations in the symmetric group on n letters that contain c copies of a given pattern. As c varies (with n held fixed) these numbers form a sequence whose properties we study for the monotone patterns and the patterns 1, l, l-1, ..., 2. We show that, except for the patterns 1, 2 and 2, 1 where the sequence is well-known to be
Department of Mathematics, University of Florida, Gainesville, Florida, f1bona@math.ufl.eduf1 ( host institution ) +3 more
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Zhejiang dianli, 2023 In order to use the existing hardware sources to improve the line selection performance of single-phase grounding fault of small resistance grounding systems， a method for line selection of single-phase grounding fault based on the global steady-state ...
LIU Jian +4 more
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