Results 31 to 40 of about 386,900 (206)
Review of Membranes for Helium Separation and Purification
Membranes, 2017 Membrane gas separation has potential for the recovery and purification of helium, because the majority of membranes have selectivity for helium. This review reports on the current state of the research and patent literature for membranes undertaking ...
Colin A. Scholes, Ujjal K. Ghosh
doaj +1 more source
Evolution of helium triplet transits of close-in gas giants orbiting K-dwarfs [PDF]
, 2023 Atmospheric escape in exoplanets has traditionally been observed using hydrogen Lyman-$\alpha$ and H-$\alpha$ transmission spectroscopy, but more recent detections have utilised the metastable helium triplet at 1083$~$nm. Since this feature is accessible from the ground, it offers new possibilities for studying atmospheric escape.
arxiv +1 more source
EnergiesAs an unconventional oil and gas reservoir, helium gas reservoirs have gradually become a focus of attention. In recent years, with the continuous increase in demand for helium gas, the uneven distribution of global helium resources has attracted China’s
Ye Xiong +3 more
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Shiyou shiyan dizhiThe Ordos Basin is rich in helium resources, with high helium and helium-rich natural gas fields discovered in areas such as the Yimeng Uplift and the southern Yishan Slope.
Zhengang DING +7 more
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Comparison of helium source characteristics between geothermal water-dissolved type and natural gas-associated type: A case study of Weihe Basin and northern Ordos Basin [PDF]
Youqicang pingjia yu kaifaHelium is a rare inert gas with indispensable applications in defense, aerospace, and medicine. However, helium resources available for use in China are extremely limited. To date, no independently accumulated helium resources have been found.
ZHANG Jin, ZHANG Fengqi, ZOU Yanrong, REN Xiaoqing, CHEN Hongguo, WANG Pengtao, RU Rong, ZHANG Wen
doaj +1 more source
A case study of helium recovery from Australian natural gas
Case Studies in Chemical and Environmental Engineering, 2022 Helium occurs in commercial quantities in some natural gas fields and global production is dominated by the few countries that recover helium as a byproduct of natural gas.
Luke McElroy +3 more
doaj
Propulsion apparatus and method using boil-off gas from a cryogenic liquid [PDF]
, 1986 A propulsion system and method are disclosed for controlling the attitude and drag of a space vehicle. A helium dewar contains liquid helium which cools an experiment package.
Blount, D. H.
core +1 more source
The Effect of Helium Sedimentation on Galaxy Cluster Masses and Scaling Relations
, 2011 Recent theoretical studies predict that the inner regions of galaxy clusters may have an enhanced helium abundance due to sedimentation over the cluster lifetime.
A. Miller +35 more
core +1 more source
A Hermetic On-Cryostat Helium Source for Low Temperature Experiments [PDF]
arXiv, 2023 We describe a helium source cell for use in cryogenic experiments that is hermetically sealed $in$ $situ$ on the cold plate of a cryostat. The source cell is filled with helium gas at room temperature and subsequently sealed using a cold weld crimping tool before the cryostat is closed and cooled down.
arxiv
Experimental study about the gas slip flow in Longmaxi shales from the southern Sichuan Basin
地质科技通报, 2021 In order to clarify the gas slip flow effect and its influencing mechanism of shale gas reservoirs, low-temperature nitrogen adsorption measurements were performed on the Silurian Longmaxi Formation shales from the Sichuan Basin.
Degao Hu +5 more
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