Results 1 to 10 of about 500,734 (199)
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 Ghosh
exaly +3 more sources
Helium enrichment theory and exploration ideas for helium-rich gas reservoirs
Petroleum Exploration and DevelopmentUsing gas and rock samples from major petroliferous basins in the world, the helium content, composition, isotopic compositions and the U and Th contents in rocks are analyzed to clarify the helium enrichment mechanism and distribution pattern and the ...
Shengfei QIN +8 more
exaly +3 more sources
The ionization of helium by neutral helium atoms [PDF]
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1946 Abstract A method is described for investigating the ionization produced in helium by collisions between quasi-stationary atoms—that is, atoms possessing only therm al velocities—and a beam of neutral helium atoms with kinetic energy less than 100 eV.
F, HORTON, D M, MILLEST
openaire +2 more sources
Assessing the expansion of the Cambrian Agronomic Revolution into fan-delta environments
Scientific Reports, 2022 The intensity, extent, and ecosystem-level impact of bioturbation (i.e. Agronomic Revolution) at the dawn of the Phanerozoic is a hotly debated issue.
Andrei Ichaso +4 more
doaj +1 more source
Models of helium enrichment in helium-rich gas reservoirs of petroliferous basins in China
Natural Gas Industry B, 2023 Owing to the characteristics of chemical inertness, low molecular weight, low boiling point, strong permeability and high heat conductivity, helium is extensively used in the fields of aerospace, low-temperature superconductivity, medicine and high tech,
Shengfei Qin +4 more
doaj +1 more source
Reduction of the Pressurization System Final Mass for a Modern Rocket Launcher [PDF]
Journal of Aerospace Technology and Management, 2022 The work focuses on optimizing the pressurization system’s operating performance for a fuel tank of a turbo-pumped liquid propellant rocket engine. This system is the most complex and expensive in a medium-size launch vehicle, after the engine.
Yurii Mitikov, Olexiy Shynkarenko
doaj +1 more source
Journal of Natural Gas Geoscience, 2022 Helium, a coordinated resource in natural gas, is an essential and strategic resource, but research on its enrichment mechanism is relatively weak.
Shengfei Qin +4 more
doaj +1 more source
Therapeutic gases used in balneotherapy and rehabilitation medicine - scientific relevance in the last ten years (2011 – 2020) - Synthetic literature review [PDF]
Balneo and PRM Research Journal, 2021 : Background. The medical relevance of therapeutic gases can range from use in burns and stroke victims to hypoxia therapy in children. However, medical gases such as oxygen, hydrogen, helium and xenon have recently come under increased exploration for
MUNTEANU Constantin +3 more
doaj +1 more source
Nicotinamide adenine dinucleotide and the sirtuins caution: Pro‐cancer functions
Aging Medicine, 2021 This scoping review aims to perform a brief but comprehensive assessment of existing peer‐reviewed literature and determine whether raising nicotinamide adenine dinucleotide can prevent or promote tumorigenesis. The examination of extensive peer‐reviewed
Raymond D. Palmer, Mauro Vaccarezza
doaj +1 more source
Aging Medicine, 2021 Nicotinamide adenine dinucleotide (NAD) is a coenzyme found in every human cell and regulates a number of systems across multiple cellular compartments and tissue types via an endogenous and exogenous influence.
Raymond D. Palmer +2 more
doaj +1 more source