Search Results - "helium"
-
1
-
2
Electron-helium scattering in Debye plasmas
Published 2011“…Electron-helium scattering in weakly coupled hot-dense (Debye) plasma has been investigated using the convergent close-coupling method. …”
Get full text
-
3
-
4
Electron scattering in a helium Debye plasma
Published 2011“…We provide benchmark results of electron–helium scattering for momentum transfer cross sections, discrete excitation and ionization over a broad range of incident energies and Debye radii.…”
Get full text
-
5
Metastable aluminium atoms floating on the surface of helium nanodroplets
Published 2015Subjects: “…Helium nanodroplets…”
Get full text
-
6
A revisit to the Gibbs dividing surfaces and helium adsorption
Published 2011“…This paper addresses the long-standing problem of the so-called Gibbs dividing surface and the use of helium as a "non-adsorbing" gas for the determination of the "helium"-void volume and thence the Gibbs excess. …”
Get full text
-
7
The invention of the helium-neon gas laser by Ali Javan
Published 2011“…This invention is the gas laser composed of Helium-Neon Laser. In this chapter the theory of the gas laser, its main components and advantages will be dealt with in comparison to the normal laser. …”
Get full text
Get full text
-
8
-
9
-
10
Convergent close-coupling approach to positron-helium collisions
Published 2010Subjects: “…helium atom…”
Get full text
-
11
Helium substitution of natural gas hydrocarbons in the analysis of their hydrate
Published 2016“…Experimental determination of the hydrate stabilization effects of the present hydrate formers was performed using a novel approach involving helium substitution of each hydrate guest species in an otherwise identical synthetic natural gas. …”
Get full text
-
12
-
13
A Short Review on Membranes for Helium Separation and Purifications
Published 2019“…Preponderance of membranes have Helium (He) selectivity which causes their gas separation has a potential for helium revival and purification. …”
Get full text
Get full text
-
14
New gas processing technologies for nitrogen rejection and helium capture
Published 2019“…The only practical source of helium is natural gas, where it exists as a difficult-to-recover trace impurity. …”
Get full text
-
15
-
16
Convergent close-coupling calculations of positron scattering on metastable helium
Published 2010“…The convergent close-coupling method has been applied to positron scattering on a helium atom in the 2 S-3 metastable state. For this system the positronium (Ps) formation channel is open even at zero scattering energy making the inclusion of the Ps channels especially important. …”
Get full text
-
17
Membranes for helium recovery: An overview on the context, materials and future directions
Published 2017“…Helium demand is expected to double within the next two decades given its essential role as a cryogenic fluid and an inert gas in various technological applications whereas its production capacity only increases by 3% per year, leading to an inevitable rising price of helium in the near future. …”
Get full text
-
18
-
19
A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM)
Published 2012Subjects: Get full text
-
20
Development of multiple-breath-helium-washout system for lung function studies
Published 2009“…This thesis discusses the development of the multiple-breat h-helium washout (MBHW) measurement for lung-function study. …”
Get full text