Results 41 to 50 of about 601,537 (357)
Rb*He_n exciplexes in solid 4_He [PDF]
, 2006 We report the observation of emission spectra from Rb*He_n exciplexes in solid 4He. Two different excitation channels were experimentally identified, viz., exciplex formation via laser excitation to the atomic 5P3/2 and to the 5P1/2 levels.
Hofer, A. +4 more
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Influence of Purging Gas on 316L Stainless Steel Fusion Zone in Autogenous Stationary TIG Welding
Tehnički Vjesnik, 2022 This research reveals the influence of different purging conditions on the fusion zone dimensions and shape for stationary autogenous TIG welding of 316L stainless steel. Welding experiments were performed for unpurged and purged weld root side for 7, 14
Domagoj Kojundžić +3 more
doaj +1 more source
Physical Properties of Helium and Application in Respiratory Care
Encyclopedia, 2023 Helium is a low-density, inert, monoatomic gas that is widely used in medical applications. In respiratory care, Helium is mainly used as an adjunct therapy for patients with severe upper airway obstruction and asthma.
Eric Chappel
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Transmission electron microscopy of Ledderhose disease in a patient with bilateral presentation
Human Pathology Reports, 2021 The plantar fibromatosis of the foot, also known as Ledderhose Disease, presents itself as one or more rounded, firm, hard nodules, typically located on the medial side of the plantar vault.
A. Merolli, L. Rocchi
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Geochemistry, Geophysics, Geosystems, 2022 Water column physico‐chemical studies were conducted over the southern Central Indian Ridge between 24°44’S and 25°52’S to identify and chemically characterize seafloor hydrothermal activity.
L. Surya Prakash +9 more
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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
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A New Window into Escaping Exoplanet Atmospheres: 10830 Å Line of Helium [PDF]
, 2017 Observational evidence for escaping exoplanet atmospheres has been obtained for a few exoplanets to date. It comes from strong transit signals detected in the ultraviolet, most notably in the wings of the hydrogen Lyα (Lyα) line. However, the core of the
A. Oklopčić, C. Hirata
semanticscholar +1 more source
Proceedings of the National Academy of Sciences, 1998 The ratio 3 He/ 4 He (R) plays a central role in models of mantle evolution that propose an undegassed lower mantle, rich in the primordial isotope 3 He. A large primordial volatile-rich reservoir, a feature of recent models, is inconsistent with high-temperature ...
openaire +4 more sources
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
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