Results 71 to 80 of about 3,313,131 (376)
Meitian dizhi yu kantanBackgroundHelium is identified as a scarce strategic resource, having found widespread applications in high-tech fields such as high-end manufacturing, aerospace, and national defense due to its stable chemical properties and low boiling point.
Jiarun LIU +4 more
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Electron–Matter Interactions During Electron Beam Nanopatterning
Advanced Functional Materials, EarlyView.This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima +2 more
wiley +1 more source
High-Spatial-Resolution Helium Detection and Its Implications for Helium Accumulation Mechanisms
Applied SciencesHelium is a scarce strategic resource. Currently, all economically valuable helium resources are found in natural gas reservoirs. Owing to helium’s different formation and migration processes compared to natural gas’s, the traditional method of ...
Chao Lu +5 more
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Supercritical Helium Gas Cooling
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 1969 This paper reviews supercritical helium gas cooling methods. The thermal transport properties of supercritical helium near 4.2°K are collected.Cryogenic helium pump or bellow pump for forced supercritical circulation is adequate to the laboratory-scale cooling system.The superconducting composite configurations with hollow conductors are used for ...
openaire +2 more sources
Advanced Functional Materials, EarlyView.Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang +10 more
wiley +1 more source
Enrichment factors and play fairway mapping of helium in typical zones of the Ordos Basin
Meitian dizhi yu kantanBackgroundThe Ordos Basin enjoys abundant natural gas resources, which generally bear helium, making this basin hold great helium resource potential. In this case, detailed exploration is essential for the future transition from natural gas-helium joint ...
Jianrong GAO +11 more
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Interference-induced peak splitting in EUV superfluorescence [PDF]
, 2012 We investigate the laser-induced quantum interference in EUV superfluorescence occurring in a dense gas of $\Lambda$-type helium atoms coupled by a coherent laser field in the visible region.
Agostini +21 more
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Upcycling of Disposable Face Masks into Water‐Resistant and Flame Retardant Foams
Advanced Functional Materials, EarlyView.Disposable mask waste is upcycled into lightweight polypropylene‐based foams with tunable porosity and composite architectures reinforced by ear‐loop fibers. The sustainable solvent‐based process enables upcycling rates of 91% and solvent recovery of >90%.
Jingjing Pan +3 more
wiley +1 more source
The coupling action of helium and nitrogen enrichment and its significance
Journal of Natural Gas GeoscienceHelium, a critical rare strategic resource primarily sourced from natural gas, is currently a subject of intense research regarding its enrichment processes within gas reservoirs.
Shengfei Qin +4 more
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Cryostat system for temperatures on the order of 2 deg K or less [PDF]
, 1976 A cryostat system for cooling a device to a temperature on the order of 2 K or less includes a dewar, in which helium, in other than the superfluid state, is stored.
Miller, C. G., Stephens, J. B.
core +1 more source