Results 81 to 90 of about 5,995,861 (234)
A Visual Fault Detection Method for Induction Motors Based on a Zero-Sequence Current and an Improved Symmetrized Dot Pattern. [PDF]
Entropy (Basel), 2022 Huang L, Wen J, Yang Y, Chen L, Shen G.
europepmc +1 more source
On the lexicographic representation of numbers
, 2015 It is proven that, contrarily to the common belief, the notion of zero is not necessary for having positional representations of numbers. Namely, for any positive integer $k$, a positional representation with the symbols for $1, 2, \ldots, k$ is given ...
Manca, Vincenzo
core
Subsequence sums of a zero-sumfree sequence
European Journal of Combinatorics, 2009 Let \(G\) be a finite additive Abelian group and let \(S=\{a_i\}_{i=1}^n\) be a finite sequence of elements of \(G\). Define \[ \Sigma(S)=\left\{\sum_{i\in I}a_i:\emptyset\neq I\subseteq\{1,\dots,n\}\right\}. \] The author shows the inequality \(|\Sigma(S)|\geq 2n-1\) provided that \(0\not\in\Sigma(S)\) and the group generated by \(a_1,\dots,a_n\) is ...
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Zero sequence entropy and entropy dimension
Discrete & Continuous Dynamical Systems - A, 2017 Let \((X,T)\) be a topological dynamical system. The following are the main results in this paper. Theorem 1. The following conclusions hold: i)\ For an increasing sequence \(S=\{s_1< s_2< ...\}\) of positive integers, \(h_{\mathrm{top}}^S(X,T)=0\) if and only if \(h_{\mathrm{top}}^S(M(X),T)=0\) ii)\ \(\overline{D}(X,T)=\overline{D}(M(X),T)\).
Zhou, Xiaoyao, Qiao, Yixiao
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On the asymptotic uniqueness of bargaining equilibria [PDF]
The paper studies the model of multilateral bargaining over the alternatives representedby points in the mâdimensional Euclidean space. Proposers are chosen randomly and the acceptance of a proposal requires the unanimous approval of it by all the ...
Predtetchinski Arkadi
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Infinity of Zeros of Recurrence Sequences
Journal of Mathematics Research, 2011 The purpose of this work is to study the zeros of linear recurrence sequence, with constant coefficients. We give a simple proof of well known Skolem-Mahler-Lech theorem. The advantage of this work is similar to the one done by V. Halava and collaborators, but in a simple way.
S. Kaouache, T. Zerzaihi
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Theoretical Zero Age Main Sequences revisited
, 1999 4 pages, 4 postscript figures, accepted for publication on Astronomy & ...
CASTELLANI, VITTORIO +2 more
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IET Power ElectronicsThis paper focuses on maintaining the optimal common mode voltage of the existing zero common mode voltage (ZCMV) method while reducing its large zero‐sequence circulating current.
Jing Feng, Xiaoliang Jin
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Polynomials with Real Zeros and Compatible Sequences
The Electronic Journal of Combinatorics, 2012 In this paper, we study polynomials with only real zeros based on the method of compatible zeros. We obtain a necessary and sufficient condition for the compatible property of two polynomials whose leading coefficients have opposite sign. As applications, we partially answer a question proposed by M. Chudnovsky and P. Seymour in the recent publication [
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Research on zero-sequence circulating current of bidirectional converters
机车电传动The bidirectional converter device, featuring multiple converters in parallel on both AC and DC sides, employs carrier phase-shifting control. This approach can significantly enhance system capacity and reduce grid current harmonics; however, it also ...
YANG Jun +5 more
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