Results 31 to 40 of about 472,379 (329)
Mathematics, 2022 In animal husbandry, it is of great interest to determine and control the key factors that affect the production characteristics of animals, such as milk yield.
Snezhana Gocheva-Ilieva +2 more
doaj +1 more source
Multi-Step Ahead Ex-Ante Forecasting of Air Pollutants Using Machine Learning
Mathematics, 2023 In this study, a novel general multi-step ahead strategy is developed for forecasting time series of air pollutants. The values of the predictors at future moments are gathered from official weather forecast sites as independent ex-ante data.
Snezhana Gocheva-Ilieva +3 more
doaj +1 more source
Arc‐Disjoint Cycles and Feedback Arc Sets [PDF]
Journal of Graph Theory, 2013 AbstractIsaak posed the following problem. Suppose T is a tournament having a minimum feedback arc set, which induces an acyclic digraph with a hamiltonian path. Is it true that the maximum number of arc‐disjoint cycles in T equals the cardinality of minimum feedback arc set of T? We prove that the answer to the problem is in the negative.
openaire +2 more sources
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
International Journal of Electrical Power & Energy Systems, 2019 This paper presents a method for detecting series arcing faults in AC home electrical networks. The proposed algorithm is based on both a Kalman filter, used for identifying fault symptoms and a decision block, which confirms the presence of a series arc
Edwin Calderon-Mendoza +2 more
semanticscholar +1 more source
Applied Sciences, 2017 This paper analyses the transient characteristics and breaking performance of direct-current (DC) forced-interruption vacuum interrupters in 270 V power-supply systems.
Wenlei Huo +5 more
doaj +1 more source
Arc-analyticity and polynomial arcs [PDF]
Annales Polonici Mathematici, 2004 The author gives an elegant proof that for subanalytic functions the three notions of arc-analyticity, local blow-analyticity and analyticity on restriction to polynomial arcs coincide. The paper is short and very well written.
openaire +2 more sources
Classification of multiple electromagnetic interference events in high-voltage power plant [PDF]
, 2018 This paper addresses condition assessment of electrical assets contained in high voltage power plants. Our work introduces a novel analysis approach of multiple event signals related to faults, and which are measured using Electro-Magnetic Interference ...
Boreham, Philip +5 more
core +2 more sources
Batteries, 2023 Lithium-Ion battery cells and automotive battery systems are constantly improving as a result of the rising popularity of electric vehicles. With higher energy densities of the cells, the risks in case of failure rise as well.
Theo Ledinski +3 more
doaj +1 more source
Parameters affecting the arcing time of HVDC circuit breakers using black box arc model
IET Generation, Transmission & Distribution, 2019 Arc interruption of high voltage direct current (HVDC) circuit breakers (CBs) is one of the main challenging factors for using HVDC grids. To evaluate the arc interrupting capability in HVDC CBs, black box arc models are used to represent the nonlinear ...
O. Gouda, D. Ibrahim, Adel Soliman
semanticscholar +1 more source