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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 91 to 100 of 700 (0.029 seconds)Spelling suggestions: "subject:"belium"" "subject:"3helium""
| 91 |
A high sensitivity detector for helium atom scatteringChisnall, David Matthew January 2013 (has links)
No description available.
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| 92 |
A quantum mechanical cell model of a dense Boson systemKnollman, Gilbert Carl 08 1900 (has links)
No description available.
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| 93 |
Self-trapping of electrons and positrons in dense helium gas : a simple variational modelCleveland, Charles Lee 08 1900 (has links)
No description available.
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| 94 |
Scattering at large momentum and energy transfer: application to neutron scattering on liquid heliumRodriguez, Leonard Julius 08 1900 (has links)
No description available.
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| 95 |
High electric field behavior of negative ions in superfluid heliumLiu, Yu 05 1900 (has links)
No description available.
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| 96 |
A New Wide Range Equation of State for Helium-4Ortiz Vega, Diego O 16 December 2013 (has links)
A multiparametric and fundamental equation of state is presented for the fluid thermodynamic properties of helium. The equation is valid for temperatures from the λ- line (~2.17 K) to 1500 K and for pressures up to 2000 MPa. The formulation can calculate all thermodynamic properties, including density, heat capacity, speed of sound, energies, entropy and saturation properties. A new equation of state is necessary to overcome difficulties associated with the current standard in the asymptotic region between the λ -line and 3 K and also difficulties related to lack of data, extrapolation performance, and accuracy at higher temperatures.
Below 50 K, the uncertainties in density are 0.20% at pressures up to 20 MPa. From 50 K to 200 K the uncertainties decrease to 0.05 % at pressures up to 80 MPa. At higher temperatures the uncertainties in density are 0.02 % up to pressures of 80 MPa. At all temperatures and at pressures higher than listed here, the uncertainties may increase to 0.3% in density. The uncertainties in the speed of sound are 0.02%. The uncertainties in vapor pressure are less than 0.02% and for the heat capacities are about 2%. Uncertainties in the critical region are higher for all properties except vapor pressure.
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| 97 |
Helium diffusion rate, permeation rate, and activation energy for polycrystalline aluminaHurst, James Joseph January 1961 (has links)
No description available.
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| 98 |
Diffusion rate and activation energy of helium through single crystal and polycrystalline aluminaCampbell, William Buford 05 1900 (has links)
No description available.
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| 99 |
Gas-liquid phase equilibrium in the helium-ethylene and helium-propylene systems below 260 K and 120 atmospheres.Garber, James Daniel 12 1900 (has links)
No description available.
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| 100 |
The interaction of 100 mev protons with 3HE and 4HE.Goldstein, Norman Phillip. January 1967 (has links)
No description available.
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