Results 11 to 20 of about 474,421 (340)
A topographic mechanism for arcing of dryland vegetation bands [PDF]
Journal of the Royal Society Interface, 2018 Banded patterns consisting of alternating bare soil and dense vegetation have been observed in water-limited ecosystems across the globe, often appearing along gently sloped terrain with the stripes aligned transverse to the elevation gradient.
Gandhi, Punit +4 more
core +3 more sources
Arc operads and arc algebras [PDF]
Geometry & Topology, 2003 Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol7/paper15.abs ...
Kaufmann, Ralph M +2 more
openaire +4 more sources
Designs, Codes and Cryptography, 2019 To an arc $\mathcal{A}$ of $\mathrm{PG}(k-1,q)$ of size $q+k-1-t$ we associate a tensor in $\langle ν_{k,t}(\mathcal{A})\rangle^{\otimes k-1}$, where $ν_{k,t}$ denotes the Veronese map of degree $t$ defined on $\mathrm{PG}(k-1,q)$. As a corollary we prove that for each arc $\mathcal{A}$ in $\mathrm{PG}(k-1,q)$ of size $q+k-1-t$, which is not contained ...
Simeon Ball, Michel Lavrauw
openaire +5 more sources
Metallurgical and Materials Transactions B, 2020 Main modeling challenges for vacuum arc remelting (VAR) are briefly highlighted concerning various involving phenomena during the process such as formation and movement of cathode spots on the surface of electrode, the vacuum plasma, side-arcing, the ...
E. Karimi-Sibaki +4 more
semanticscholar +1 more source
Discrete Mathematics, 1994 In \(\text{PG}(n,q)\), a \(k\)-arc is a set of \(k\) points such that \(k\geq n+1\) but not \(n+1\) points belong to a hyperplane. A normal rational curve in \(\text{PG}(n,q)\), \(2\leq n\leq q-2\) is a \(q+1\) arc projectively equivalent to the set of points \(\{(1,t, \cdots, t^ n)\mid t\in \text{GF} (q)^ +\}\) where \(\text{GF}(q)^ +\) denotes ...
Leo Storme, Joseph A. Thas
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Arc-consistency and arc-consistency again [PDF]
Artificial Intelligence, 1994 There is no need to show the importance of arc-consistency in Constraint Networks. Mohr and Henderson [9] have proposed AC-4, an algorithm with optimal worst-case time complexity. But it has two drawbacks: its space complexity and average time complexity.
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ARC Detection in DC ARC Furnaces [PDF]
, 2014 A direct-current (DC) plasma arc furnace is a type of electric furnace used for metallurgical operations. The successful operation of DC furnaces depends to a large extent on gaining a fundamental understanding of the arc phenomenon itself, and ensuring its presence in the furnace at all times.
Quinn G Reynolds +3 more
openaire +1 more source
Mitigation of high energy arcing faults in nuclear power plant medium voltage switchgear
Nuclear Engineering and Technology, 2019 A high energy arcing fault event occurred in the medium-voltage (13.8 kV and 4.16 kV) metalclad switchgears in a nuclear power plant not only affecting switchgear but also connected equipment due to the arc energy.
Choong-koo Chang
doaj +1 more source
Research on the arcing horn with active arc extinguishing function for HVDC grounding electrode line
IET Generation, Transmission & Distribution, 2023 The grounding electrode line is an important part of the Ultra high voltage direct current (UHVDC) transmission system. It acts as the channel to conduct the unbalanced current and the grounding current.The arcing horn consists of a pair of electrodes ...
Yicen Liu +6 more
doaj +1 more source
Applied Sciences, 2023 In this paper, a fast prediction model of the electromagnetic response of the LTE-R (Long Term Evolution for Railway) communication system based on a cascade neural network is developed to quickly analyze the impact of pantograph arcing on the LTE-R ...
Xiaodong He, Yinghong Wen, Dan Zhang
doaj +1 more source