Results 21 to 30 of about 727,063 (285)

Harmonic Manifolds and Tubes [PDF]

open access: yes, 2017
The authors showed in a preceding paper that in a connected locally harmonic manifold, the volume of a tube of small radius about a regularly parameterized simple arc depends only on the length of the arc and the radius.
Csikós, Balázs, Horváth, Márton
core   +3 more sources

Electric Arc Furnace Electrode Movement Control System Based on a Fuzzy Arc Length Identifier

open access: yesEnergies, 2023
From the point of view of the synthesis of control influences, arc steelmaking furnaces are complex nonlinear objects with strongly expressed mutual influences.
Jacek Kozyra   +5 more
doaj   +1 more source

A moving mesh finite element algorithm for fluid flow problems with moving boundaries [PDF]

open access: yes, 2005
A moving mesh finite element method is proposed for the adaptive solution of second- and fourth-order moving boundary problems which exhibit scale invariance.
Baines   +5 more
core   +1 more source

Cooperation of an Electric Arc Device with a Power Supply System Equipped with a Superconducting Element

open access: yesEnergies, 2022
This paper analyses the validity of using superconductors in the power supply system of arc devices. Two cases were analysed: when an additional superconducting element was included in the conventional power supply system and when the total power supply ...
Grzegorz Komarzyniec
doaj   +1 more source

Multi-Physics Modeling of Steel Ingot Melting by Electric Arc Plasma and its Application to Electric Arc Furnace

open access: yesFrontiers in Materials, 2020
Arc melting is one of the commonly-used melting methods in modern material manufacturing. The present study established a numerical model coupling the electric arc plasma, solid melting, and liquid flow together to simulate the steel ingot melting ...
Yuchao Chen   +3 more
doaj   +1 more source

Pseudogap and its connection to particle-hole asymmetry electronic state and Fermi arcs in cuprate superconductors

open access: yes, 2012
The particle-hole asymmetry electronic state of cuprate superconductors and the related doping and temperature dependence of the Fermi arc length are studied based on the kinetic energy driven superconducting mechanism.
Alldredge   +44 more
core   +1 more source

Extended Pantograph–Catenary Arc Modeling and an Analysis of the Vehicular-Grounding Electromagnetic Transients of Electric Multiple Units

open access: yesEnergies
As the operating speed of electric multiple units (EMUs) in high-speed railways increases, pantograph–catenary (PC) detachment arcing occurs frequently.
Ke Huang, Dongdong Su
doaj   +1 more source

Arc length monitoring and closed-loop quality control for GTA-WAAM

open access: yesVirtual and Physical Prototyping
This study aims to enhance the monitoring and control of arc length in Wire Arc Additive Manufacturing with Gas Tungsten Arc (GTA-WAAM). Accurate measurement and closed-loop control of arc length in WAAM is challenging, especially under conditions of low
Jiashun Si   +3 more
doaj   +1 more source

Theoretical formulation/development of signal sampling with an equal arc length using the frame theorem

open access: yesEURASIP Journal on Advances in Signal Processing, 2022
Nonuniform sampling with equal arc length intervals can be found in shape measurements with contact sensor arrays. In this study, the conditions of nonuniform spatial sampling with an equal arc length interval are derived from two frame theorems.
Chunying Xu   +3 more
doaj   +1 more source

Arc Length pdf [PDF]

open access: yes, 2009
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