Results 41 to 50 of about 326,613 (309)
Discrete Mathematics, 1974 AbstractA possible way to obtain a complicated graph imbedding in a surface is to derive it as a covering of a simpler imbedding by assigning “voltages” to the edges of the simpler imbedding. Although this new method is but the dual of the current graph construction,it has independent importance in practical applications, illustrated here by a ...
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A graph search algorithm: Optimal placement of passive harmonic filters in a power system [PDF]
Journal of Artificial Intelligence and Data Mining, 2015 The harmonic in distribution systems becomes an important problem due to an increase in nonlinear loads. This paper presents a new approach based on a graph algorithm for optimum placement of passive harmonic filters in a multi-bus system, which suffers ...
M. Aghaei, A. Dastfan
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The boundaries of dipole graphs and the complete bipartite graphs K_{2,n}
, 2013 We study the Seifert surfaces of a link by relating the embeddings of graphs by using induced graphs. As applications, we prove that every link $L$ is the boundary of an oriented surface which is obtained from a graph embedding of a complete bipartite ...
Kim, Dongseok
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An Optimal and Distributed Method for Voltage Regulation in Power Distribution Systems [PDF]
, 2015 This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and storage-capable loads such as plug-in hybrid electric vehicles. We cast the
Dominguez-Garcia, Alejandro +3 more
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Searching for Voltage Graph-Based LDPC Tailbiting Codes With Large Girth [PDF]
IEEE Transactions on Information Theory, 2012 The relation between parity-check matrices of quasi-cyclic (QC) low-density parity-check (LDPC) codes and biadjacency matrices of bipartite graphs supports searching for powerful LDPC block codes. Using the principle of tailbiting, compact representations of bipartite graphs based on convolutional codes can be found. Bounds on the girth and the minimum
Bocharova, Irina +4 more
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Homology detection method for voltage sags based on space vector and maximum mean discrepancy
Energy Reports, 2022 A single voltage sag source may trigger multiple power quality monitors to record waveforms resulting in the redundancy of voltage sag monitoring data.
Wei Wang +5 more
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On the girth of voltage graph lifts
European Journal of Combinatorics, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Exoo, Geoffrey, Jajcay, Robert
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Measurement Method and Principle for Thoracic Impedance Graph
MATEC Web of Conferences, 2017 Thoracic impedance graph is an impedance change curve measured on the surface of the human chest. It reflects indirectly the volume change of the heart and large vessels in the thorax, and it includes rich information about physiological activities and ...
Hui Zhao +4 more
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Clinical Correlates of Anxiety and Depression After Diagnosis of a Pediatric Brain Tumor
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background The prevalence and clinical correlates of symptoms of anxiety and depression in pediatric patients with brain tumors are not well described. We aimed to identify clinical characteristics that are correlated with elevated symptoms of anxiety and depression following initial diagnosis.
Bryony J. Lucas +16 more
wiley +1 more source
Reactive Power Optimization of a Distribution Network Based on Graph Security Reinforcement Learning
Applied SciencesWith the increasing integration of renewable energy, the secure operation of distribution networks faces significant challenges, such as voltage limit violations and increased power losses.
Xu Zhang +7 more
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