Results 51 to 60 of about 695,127 (377)
The helium trimer with soft-core potentials [PDF]
, 2011 The helium trimer is studied using two- and three-body soft-core potentials. Realistic helium-helium potentials present an extremely strong short-range repulsion and support a single, very shallow, bound state.
A. Kievsky +34 more
core +3 more sources
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
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
doaj +1 more source
AerospaceLunar dust remains one of the most critical unresolved challenges to long-duration lunar missions. Its sharp, abrasive, and electrostatically charged particles are easily inhaled and can penetrate deep into the lungs, reaching the bloodstream and the ...
Christopher Salvino +9 more
doaj +1 more source
Free-energy model for fluid helium at high density [PDF]
, 2004 We present a semi-analytical free-energy model aimed at characterizing the thermodynamic properties of dense fluid helium, from the low-density atomic phase to the high-density fully ionized regime. The model is based on a free-energy minimization method
Christophe Winisdoerffer +3 more
core +2 more sources
Radiation-Induced Helium Bubbles in Metals
Materials, 2019 Helium (He) bubbles are typical radiation defects in structural materials in nuclear reactors after high dose energetic particle irradiation. In the past decades, extensive studies have been conducted to explore the dynamic evolution of He bubbles under ...
Shi-Hao Li, Jing-Ting Li, W. Han
semanticscholar +1 more source
Detectability of Light Dark Matter with Superfluid Helium. [PDF]
Physical Review Letters, 2016 We show that a two-excitation process in superfluid helium, combined with sensitivity to meV energy depositions, can probe dark matter down to the ∼keV warm dark matter mass limit.
K. Schutz, K. Zurek
semanticscholar +1 more source
Havacılık ve Uzay Teknolojileri Dergisi, 2023 Temperature distribution and flue gas emissions in gas turbine combustion chambers have attracted the attention of researchers in recent years.
Buğrahan Alabaş, Adem Altınay
doaj
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
doaj +1 more source
The Hottest Horizontal-Branch Stars in omega Centauri - Late Hot Flasher vs. Helium Enrichment
, 2007 UV observations of some massive globular clusters uncovered a significant population of very hot stars below the hot end of the horizontal branch (HB), the so-called blue hook stars.
Bono, G. +7 more
core +2 more sources