Results 11 to 20 of about 1,252,987 (207)

Open magnetic flux and magnetic flux closure during sawtooth events [PDF]

open access: yes, 2008
peer reviewedWe use IMAGE-FUV observations of the polar aurora and measurements of the ionospheric convection from the SuperDARN radar network to study several sawtooth events previously reported in the literature. We estimate the amount of open magnetic
Hubert, Benoît   +6 more
core   +6 more sources

Modelling of multiple impacts for the prediction of distortions and residual stresses induced by ultrasonic shot peening (USP) [PDF]

open access: yes, 2012
During a manufacturing process, the ultrasonic shot peening (USP) technique can be used as the final surface treatment. The aim of this operation is to introduce surface compressive residual stresses in order to prevent crack propagation advancement ...
Taheri, Sahid   +10 more
core   +1 more source

Residual Stresses in Modelling Fatigue Lifetime of Gas Nitrided Iron-Based Alloys [PDF]

open access: yes, 2016
The objective of this work is to propose a model abled to optimize the mechanical properties from gaseous nitriding of steels (hardness, residual stresses) for a given loading and fatigue lifetime.
BECK, Guillaume   +9 more
core   +1 more source

Mechanism and Method for Residual Flux Detection of Transformer Cores Based on Different Polarities Response Currents [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
This paper proposes a residual flux detection method based on the different polarities of response currents. When a positive–negative alternating DC voltage is loaded, the direction of the residual flux can be determined by the difference between the ...
Cailing Huo   +3 more
doaj   +1 more source

Effects of CO2 injection factors on preventing spontaneous coal combustion in coal mine gobs: a simulation approach

open access: yesFrontiers in Earth Science, 2023
The spontaneous combustion of residual coal in the gob seriously threatens the safety of coal mining. Injecting CO2 into the gob not only prevents the residual coal from spontaneous combustion but also realizes CO2 storage in the mined areas.
Jiafeng Fan
doaj   +1 more source

Methods of measuring residual stresses in components [PDF]

open access: yes, 2012
Residual stresses occur in many manufactured structures and components. Large number of investigations have been carried out to study this phenomenon and its effect on the mechanical characteristics of these components.
Olabi, Abdul-Ghani   +10 more
core   +2 more sources

Solar flux emergence : a three-dimensional numerical study [PDF]

open access: yes, 2008
Flux is continually emerging on the Sun, making its way from the solar interior up into the atmosphere. Emergence occurs on small-scales in the quiet Sun where magnetic fragments emerge, interact and cancel and on large-scales in active regions where ...
Murray, Michelle J.
core   +2 more sources

Evaluation of welding-induced residual stress and distortion in A-TIG welding of duplex stainless steel

open access: yesJournal of Mechanical Engineering and Sciences, 2023
Applying non-uniform heat in welding causes residual stress and distortion, which affects the life of components. In the present study, the residual stress and distortion of Duplex 2205 stainless steel in A-TIG welding were investigated numerically and ...
Amir Siyavoshi   +4 more
doaj   +1 more source

Terminology as a key uncertainty in net land use and land cover change carbon flux estimates [PDF]

open access: yesEarth System Dynamics, 2014
Reasons for the large uncertainty in land use and land cover change (LULCC) emissions go beyond recognized issues related to the available data on land cover change and the fact that model simulations rely on a simplified and incomplete description of ...
J. Pongratz   +3 more
doaj   +1 more source

Experimental and theoretical analysis of exhaust manifold by uncoated and coated ceramics (Al2O3, TiO2 and ZrO2)

open access: yesCase Studies in Thermal Engineering, 2023
This research work focuses on the experimental and theoretical analysis of the exhaust manifold with novel ceramic coatings (TiO2 Coatings; ZrO2 coatings; and Al2O3 coatings) and these coatings were applied on the manifold by the plasma arc technique ...
K. Sunil Kumar   +7 more
doaj   +1 more source

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