Results 1 to 10 of about 5,124,705 (288)
Universal centers in the cubic trigonometric Abel equation
Electronic Journal of Qualitative Theory of Differential Equations, 2014 We study the center problem for the trigonometric Abel equation $d \rho/ d \theta= a_1 (\theta) \rho^2 + a_2(\theta) \rho^3,$ where $a_1(\theta)$ and $a_2(\theta)$ are cubic trigonometric polynomials in $\theta$.
Jaume Giné +2 more
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A note on the p - center problem [PDF]
Yugoslav Journal of Operations Research, 2011 The p - center problem is to locate p facilities in a network so as to minimize the longest distance between a demand point and its nearest facility. In this paper, we give a construction on a graph G which produces an infinite ascending chain G=G0≤G1≤
Jafari Rad Nader
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Talanta Open, 2023 In this work, we developed a portable multispectral fluorometer for determining formalin (FA). We used nitrogen-doped carbon dots (N-CDs) as the fluorescence probe, based on right-angle fluorescence spectrometry with twin excitation high-power light ...
Warut Singseeta +4 more
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An optimal algorithm for the weighted backup 2-center problem on a tree [PDF]
, 2015 In this paper, we are concerned with the weighted backup 2-center problem on a tree. The backup 2-center problem is a kind of center facility location problem, in which one is asked to deploy two facilities, with a given probability to fail, in a network.
Wang, Hung-Lung
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BMC Medical Education, 2022 Background Career choice is a complex, multifaceted process affecting all aspects of life. Motivational factors of aspiring dentists are crucial to inform institutions and aid with the admission process. The aim of this study was to explore undergraduate
Alaa Daud +3 more
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Analytic reducibility of nondegenerate centers: Cherkas systems
Electronic Journal of Qualitative Theory of Differential Equations, 2016 In this paper we study the center problem for polynomial differential systems and we prove that any center of an analytic differential system is analytically reducible.
Jaume Giné, Jaume Llibre
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A Hydrogen-Bromate Flow Battery as a Rechargeable Chemical Power Source
Membranes, 2022 The hydrogen-bromate flow battery represents one of the promising variants for hybrid power sources. Its membrane-electrode assembly (MEA) combines a hydrogen gas diffusion anode and a porous flow-through cathode where bromate reduction takes place from ...
Natalia V. Kartashova +7 more
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Constant Factor Approximation for Capacitated k-Center with Outliers [PDF]
, 2014 The $k$-center problem is a classic facility location problem, where given an edge-weighted graph $G = (V,E)$ one is to find a subset of $k$ vertices $S$, such that each vertex in $V$ is "close" to some vertex in $S$.
Cygan, Marek, Kociumaka, Tomasz
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Discrete Center Problems [PDF]
, 2011 Our focus in this chapter is on discrete center location problems. This class of problems involves locating one or more facilities on a network to service a set of demand points at known locations in such a way that every demand receives its service from a closest facility, and the maximum distance between a demand and a closest facility is as small as
openaire +4 more sources
The Discrete 2-Center Problem [PDF]
Discrete & Computational Geometry, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Agarwal, P. K., Sharir, M., Welzl, E.
openaire +1 more source