Results 1 to 10 of about 20,006 (279)

Severe plastic deformation of Al strips through equal multi and single channel angular pressing [PDF]

open access: yesScientific Reports
Equal channel multi-angular pressing (ECMAP) and equal channel angular pressing (ECAP) of Al-1050 strips were carried out. The ECMAP and ECAP load-displacement behavior, peak load, microhardness distribution maps, homogeneity, and average values were ...
Elshafey Ahmed Gadallah   +1 more
doaj   +2 more sources

X-ray Dark-Field Imaging for Improved Contrast in Historical Handwritten Literature

open access: yesJournal of Imaging, 2022
If ancient documents are too fragile to be opened, X-ray imaging can be used to recover the content non-destructively. As an extension to conventional attenuation imaging, dark-field imaging provides access to microscopic structural object information ...
Bernhard Akstaller   +9 more
doaj   +1 more source

Reconstructing the arrival direction of neutrinos in deep in-ice radio detectors

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In-ice radio detectors are a promising tool for the discovery of EeV neutrinos. For astrophysics, the implications of such a discovery will rely on the reconstruction of the neutrino arrival direction.
Ilse Plaisier, Sjoerd Bouma, Anna Nelles
doaj   +1 more source

Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging

open access: yesJournal of Imaging, 2020
For imaging events of extremely short duration, like shock waves or explosions, it is necessary to be able to image the object with a single-shot exposure. A suitable setup is given by a laser-induced X-ray source such as the one that can be found at GSI
Maria Seifert   +12 more
doaj   +1 more source

Noise Reduction for Single-Shot Grating-Based Phase-Contrast Imaging at an X-ray Backlighter

open access: yesJournal of Imaging, 2021
X-ray backlighters allow the capture of sharp images of fast dynamic processes due to extremely short exposure times. Moiré imaging enables simultaneously measuring the absorption and differential phase-contrast (DPC) of these processes. Acquiring images
Stephan Schreiner   +11 more
doaj   +1 more source

Effect of Equal Channel Angular Pressing on the Microstructure and Mechanical Properties of an Mg–5Sn Alloy

open access: yesMetals, 2022
An Mg–5Sn alloy was processed by equal channel angular pressing (ECAP) for different passes (4P, 8P, and 12P), and the microstructure evolution and mechanical properties were investigated. The grain size, amount of Mg2Sn precipitates, and texture of ECAP
Xiaoru Zhuo   +4 more
doaj   +1 more source

Effect of Machining Process Parameters and Number of Pass on Compaction Behaviour of Commercially Pure Aluminium Chips Consolidated by Equal Channel Angular Pressing (ECAP) Using Response Surface Methodology [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
This work investigates the compaction behaviour of commercial pure aluminium chips (CP Al) produced during a machining operation and subsequently consolidated by Equal Channel Angular Pressing (ECAP).
R. Palanivel   +5 more
doaj   +1 more source

Hemodynamic effects of stent-graft introducer sheath during thoracic endovascular aortic repair [PDF]

open access: yesBiomechanics and Modeling in Mechanobiology (2022), 2021
Thoracic endovascular aortic repair (TEVAR) has become the standard treatment of a variety of aortic pathologies. The objective of this study is to evaluate the hemodynamic effects of stent-graft introducer sheath during TEVAR. Three idealized representative diseased aortas of aortic aneurysm, coarctation of the aorta, and aortic dissection were ...
arxiv   +1 more source

Comparative analysis of tax regimes Effectiveness in oil Production

open access: yesУчёт. Анализ. Аудит, 2022
The paper deals with the problems of the method of comparative analysis of the tax regimes in the field of oil production in order to create instruments for making operational decisions on its basis by oil and gas companies.
G. S. Dyachkov
doaj   +1 more source

Effect of Cd and SPD on structure, physical, mechanical, and operational properties of alloy of Cu-Cr-Zr

open access: yesReviews on Advanced Materials Science, 2020
An increase in the service life of electrical products from copper and its alloys is directly related to an increase in the wear resistance of materials.
Aksenov Denis A.   +4 more
doaj   +1 more source

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