Results 21 to 30 of about 497,436 (275)
European Journal of Materials, 2022 The utilisation of helium as process gas in laser powder bed fusion limits the generation of Ti-6Al-4V hot and incandescent spatters and enhances their cooling rate.
Camille Pauzon +7 more
doaj +1 more source
Coupling a single electron on superfluid helium to a superconducting resonator. [PDF]
, 2019 Electrons on helium form a unique two-dimensional system on the interface of liquid helium and vacuum. A small number of trapped electrons on helium exhibits strong interactions in the absence of disorder, and can be used as a qubit.
Koolstra, Gerwin +2 more
core +3 more sources
Black-Body Radiation Correction to the Polarizability of Helium [PDF]
, 2011 The correction to the polarizability of helium due to black-body radiation is calculated near room temperature. A precise theoretical determination of the black-body radiation correction to the polarizability of helium is essential for dielectric gas ...
D. A. Varshalovich +4 more
core +3 more sources
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
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
Constraints on the Velocity and Spatial Distribution of Helium-like Ions in the Wind of SMC X-1 from Observations with XMM-Newton/RGS [PDF]
, 2007 We present here X-ray spectra of the HMXB SMC X-1 obtained in an observation with the XMM observatory beginning before eclipse and ending near the end of eclipse.
Kallman, Timothy R. +2 more
core +2 more sources
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
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Microscopic two-fluid theory of rotational constants of the OCS-H$_2$ complex in $^4$He droplets
, 2003 We present a microscopic quantum analysis for rotational constants of the OCS-H$_2$ complex in helium droplets using the local two-fluid theory in conjunction with path integral Monte Carlo simulations.
K. Birgitta Whaley +2 more
core +1 more source
Plasma from Volunteers Breathing Helium Reduces Hypoxia-Induced Cell Damage in Human Endothelial Cells-Mechanisms of Remote Protection Against Hypoxia by Helium. [PDF]
, 2019 PurposeRemote ischemic preconditioning protects peripheral organs against prolonged ischemia/reperfusion injury via circulating protective factors. Preconditioning with helium protected healthy volunteers against postischemic endothelial dysfunction.
Augustijn, Quinten JJ +7 more
core +1 more source