Results 11 to 20 of about 1,780,646 (296)

Evolution Behavior and Closure Mechanism of Porosity in Large Billet during the Reduction Pretreatment

open access: yesMetals, 2022
The reduction pretreatment process was proposed to be applied to large billets for the purpose of alleviating the center porosities and reducing the rolling ratio.
Yang Liu, Jianhua Liu, Yang He
doaj   +1 more source

The Electron Temperature Gradient in the Galactic Disk [PDF]

open access: yes, 2006
We derive the electron temperature gradient in the Galactic disk using a sample of HII regions that spans Galactocentric distances 0--17 kpc. The electron temperature was calculated using high precision radio recombination line and continuum observations
Balser, D. S.   +4 more
core   +2 more sources

Closed-Form Solutions for Locating Heat-Concentrated Sources Using Temperature Difference

open access: yesMathematics, 2022
The closed-form solution, one of the effective and sufficient optimization methods, is usually less computationally burdensome than iterative and nonlinear minimization in optimization problems of heat source localization.
Daoyuan Sun   +3 more
doaj   +1 more source

The densification behavior of metals and alloys during spark plasma sintering: A mini-review [PDF]

open access: yesScience of Sintering, 2019
As of today, metals and alloys are widely utilized as structural, mechanical, electrical, and magnetic materials in every aspect of technology and industry.
Sovizi Saeed, Seraji Melica Esmaeeli
doaj   +1 more source

Impurity transport in temperature gradient driven turbulence [PDF]

open access: yes, 2011
In the present paper the transport of impurities driven by trapped electron (TE) mode turbulence is studied. Non-linear (NL) gyrokinetic simulations using the code GENE are compared with results from quasilinear (QL) gyrokinetic simulations and a ...
A. Skyman   +3 more
core   +2 more sources

Effect of Thermal Gradients on the Electromigration Lifetime in Power Electronics [PDF]

open access: yes, 2004
The combined effects of electromigration and thermomigration are studied. Significantly shorter electromigration lifetimes are observed in the presence of a temperature gradient.
Bisschop, J.   +6 more
core   +2 more sources

Gas oscillations in an annular channel induced by a longitudinal temperature gradient [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2022
Background and Objectives: When selecting the design and layout scheme of the thermoacoustic converter, special requirements include the placement of heat exchangers in the areas of heat input and output.
Vorotnikov, Gennady Viktorovich   +2 more
doaj   +1 more source

Observations of Reduced Electron Gyroscale Fluctuations in National Spherical Torus Experiment H-Mode Plasmas with Large E X B Flow Shear [PDF]

open access: yes, 2019
Electron gyroscale fluctuation measurements in National Spherical Torus Experiment H-mode plasmas with large toroidal rotation reveal fluctuations consistent with electron temperature gradient (ETG) turbulence.
Bell, RE   +11 more
core   +1 more source

Effect of low-temperature carbonization temperature gradient on structural evolution of PAN stabilized fiber and properties of carbon fiber

open access: yesCailiao gongcheng, 2021
In low-temperature carbonization stage, stabilized polyacrylonitrile (PAN) fibers are pyrolyzed and recombined to transform into low-temperature carbonized fiber with rudiment of turbostratic graphite structure.
HE Mu, WANG Yu, XU Liang-hua
doaj   +1 more source

An analysis of additional errors of the optical-electronic system for monitoring the railway track position [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
Subject of research. The paper considers an additional error in the railway track position control by stereoscopic methods and examines how the components of the error influence on the measurement results of linear displacements of the track in the ...
Ngoc Tuan Pham   +4 more
doaj   +1 more source

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