Results 331 to 340 of about 3,313,131 (376)
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Turbulent convection in helium gas
Physica D: Nonlinear Phenomena, 1992Abstract Various changes in measured signals were observed in thermal convective experiments of low-temperature helium gas, indicating that there are more than one turbulent states in the system. The more recently observed transition occurs at a Rayleigh number of about 1011, within the hard turbulence regime.
Emily S.C. Ching +3 more
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Two-dimensional supersolidity in a dipolar quantum gas
Nature, 2021Supersolid states simultaneously feature properties typically associated with a solid and with a superfluid. Like a solid, they possess crystalline order, manifesting as a periodic modulation of the particle density; but unlike a typical solid, they also
M. Norcia +8 more
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1970
Only small users of liquid helium — or those blessed with more money than they know what to do with — can afford to let helium out into the atmosphere. Where liquid helium is bought out, it is a matter of returning the helium gas in cylinders to the supplier.
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Only small users of liquid helium — or those blessed with more money than they know what to do with — can afford to let helium out into the atmosphere. Where liquid helium is bought out, it is a matter of returning the helium gas in cylinders to the supplier.
openaire +1 more source
Oxygen and helium gas mixtures for dyspnoea
Current Opinion in Supportive & Palliative Care, 2007Recent reports of the benefits of helium/oxygen gas mixtures (heliox) use for the relief of dyspnoea and exercise limitation have stimulated interest in the use of heliox in the palliation of dyspnoea especially in chronic obstructive pulmonary disease patients.
Elizabeth A, Laude, Sam H, Ahmedzai
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Journal of Thermal Analysis and Calorimetry, 2021
B. Ghorbani, M. Amidpour
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B. Ghorbani, M. Amidpour
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Electron Transport in Helium-Rare-Gas Mixtures
Physical Review Letters, 1994New calculations of electron transport in helium-rare-gas mixtures are presented. It is shown that the elastic collisions with helium in helium Ramsauer rare gas mixtures play analogous roles to weak inelastic collisions in molecular gas Ramsauer rare gas mixtures.
, Nagpal, , Garscadden
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Helium, Cryogenics and Natural Gas
Financial Analysts Journal, 1964(1964). Helium, Cryogenics and Natural Gas. Financial Analysts Journal: Vol. 20, No. 2, pp. 109-114.
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Hazard control for helium-neon gas lasers
The British Journal of Radiology, 1970In many cases health physicists are now concerned with protection arrangements for laser installations. The Institute has indicated that its interests extend to nonionising radiations, and so, from previous experience, may be able to provide some professional support in the preparation and implementation of generally acceptable protection ...
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