Results 31 to 40 of about 571,301 (305)
Plume influence analysis of small bipropellant thruster on solar array of GEO satellite. [PDF]
PLoS ONE, 2018 An exhaust plume gas flow from a bipropellant thruster has been recognized as a potential source of a load, heat, and contamination on the exposed satellite components which can especially degrade the optical properties and performance of solar panel ...
Kyun Ho Lee
doaj +1 more source
Method of cold welding using ion beam technology [PDF]
, 1981 A method for cold welding metal joints is described. In order to remove the contamination layer on the surface of the metal, an ion beam generator is used in a vacuum environment. A gas, such as xenon or argon, is ionized and accelerated toward the metal
Sater, B. L.
core +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
AVIATION ENGINE air-gas channel contamination DIAGNOSTIC CHARACTER
Научный вестник МГТУ ГА, 2014 The aviation engine air-gas channel contamination rate estimation methods are explored in the article.
E. A. Konyaev +3 more
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Advances in Materials Science and Engineering, 2022 The problem of contamination in ceramic insulators was found to be frequent in power transmission lines and transformers. The key aim was to develop aquaphobic zirconium oxide (ZrO2) thin films using DC reactive magnetron sputtering over glass insulators
Kumar Sujit +8 more
doaj +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
International Journal of Photoenergy, 2015 A crucible cover was designed as gas guidance to control the gas flow in an industrial directional solidification furnace for producing high purity multicrystalline silicon.
Lijun Liu +4 more
doaj +1 more source
Journal of Applied Sciences and Environmental Management, 2019 Polycyclic aromatic hydrocarbons (PAHs) are emerging ubiquitous environmental pollutants with reported carcinogenic, mutagenic and teratogenic potentials on living organisms and humans.
A.A. Enuneku, B. Kubeyinje
doaj +1 more source
Tool provides constant purge during tube welding [PDF]
, 1966 Tool provides a constant purge of inert gas during in-place welding of tubular components to prevent contamination and oxidation.
Lang, E. R.
core +1 more source
Dark Molecular Gas in Simulations of z~0 Disc Galaxies [PDF]
, 2018 The $\rm H_2$ mass of molecular clouds has traditionally been traced by the CO(J=1-0) rotational transition line. This said, CO is relatively easily photodissociated, and can also be destroyed by cosmic rays, thus rendering some fraction of molecular gas
Dave, Romeel +3 more
core +2 more sources