Results 31 to 40 of about 395,739 (367)
Erosion behaviour of composite Al-Cr cathodes in cathodic arc plasmas in inert and reactive atmospheres [PDF]
Journal of Vacuum Science & Technology A 34 (2016) 021304, 2015 Al$_{x}$Cr$_{1-x}$ composite cathodes with Al contents of x = 0.75, 0.5 and 0.25 were exposed to cathodic arc plasmas in Ar, N$_2$ and O$_2$ atmospheres and their erosion behaviour was studied. Cross-sectional analysis of the elemental distribution of the near-surface zone in the cathodes by scanning electron microscopy revealed the formation of a ...
arxiv +1 more source
Heat-Affected Zone of Plasma of Laser Cut Materials [PDF]
Manufacturing Technology, 2014 Permanent evolution of new high-strength and difficult-to-machine materials as well as production of precise and shaped products have made the engineering practice to advance towards development of technologies to allow such materials to be machined without major difficulties.
Dana Stančeková +3 more
openaire +2 more sources
Heat affected zone in surfacing chromium ledeburitic steel [PDF]
Metalurgija, 2010 Tools get failured during work; wear is a major factor that contributes to failures. Damaged tools are replaced or filed. This paper describes typical changes that occur in the heat affected zone of tool (HAZ), which was repaired by surfacing with a TIG ...
M. Tonkovič Prijanovič, L. Kosec
doaj
Direct numerical simulation of thermo-hydro-mechanical processes at Soultz-sous-Forêts [PDF]
arXiv, 2022 Porosity and permeability alteration due to the thermo-poro-elastic stress field disturbance from the cold fluid injection is a deciding factor for longer, economic and safer heat extraction from an enhanced geothermal system (EGS). In the Soultz-sous-For\^ets geothermal system, faulted zones are the main flow paths and the resulting porosity ...
arxiv
Signatures of Small-scale Structure of the Pre-reionization Intergalactic Medium in $z\gtrsim7$ Quasar Proximity Zones [PDF]
arXiv, 2023 The small-scale structure of baryons in the intergalactic medium is intimately linked to their past thermal history. Prior to the $\gtrsim10^4$ K photoheating during the epoch of reionization, cold baryons may have closely traced the clumpy cosmic web of dark matter down to scales as low as $\lesssim1$ comoving kpc, depending on the degree of heating ...
arxiv
Evolution of accretion disc reflection spectra due to a Type I X-ray burst [PDF]
, 2021 Irradiation of the accretion disc causes reflection signatures in the observed X-ray spectrum, encoding important information about the disc structure and density. A Type I X-ray burst will strongly irradiate the accretion disc and alter its properties.
arxiv +1 more source
工程科学学报, 2020 As the use of high-strength thick plates is increasing in marine engineering, bridge engineering, petroleum pipelines, and other fields, the required performance level of thick welded plates is also increasing.
Bin LU +3 more
doaj +1 more source
The gravo-magneto disc instability with a viscous dead zone [PDF]
, 2013 We consider the evolution of accretion discs that contain some turbulence within a disc dead zone, a region about the disc midplane of a disc that is not sufficiently ionised for the magneto-rotational instability (MRI) to drive turbulence. In particular, we determine whether additional sources of turbulence within a dead zone are capable of ...
arxiv +1 more source
Molecular Oncology, EarlyView.Integrating ancestry, differential methylation analysis, and machine learning, we identified robust epigenetic signature genes (ESGs) and Core‐ESGs in Black and White women with endometrial cancer. Core‐ESGs (namely APOBEC1 and PLEKHG5) methylation levels were significantly associated with survival, with tumors from high African ancestry (THA) showing ...
Huma Asif, J. Julie Kim
wiley +1 more source
Effect of Grit Blasting and Thermal Spraying on Microstructure Evolution of P91 Weldment [PDF]
Archives of Metallurgy and Materials, 2018 In the present work, studies have been carried out on the variations in the microstructure and hardness of P91 base-metal and welded joint. This variations result from the grit blasting and thermal cycle experienced during the thermal spraying process ...
J.G. Thakare +4 more
doaj +1 more source