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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 1 to 10 of 22 (0.026 seconds)Spelling suggestions: "subject:"celium 4"" "subject:"belium 4""
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A microscopic theory for quantum evaporation from helium-IIMulheran, Paul Alexander January 1991 (has links)
No description available.
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Experimentelle Ermittlung differentieller Wirkungsquerschnitte der Reaktionen 4He(e,e'p),4He(e,e'pp) und 4He(e,e'dp) mit besonderem Hinblick auf deren mögliche Indikationen für Nukleon -Nukleon -Korrelationen im HeliumkernEickhoff, Wilderich. January 2003 (has links)
Bonn, Univ., Diss., 2003. / Computerdatei im Fernzugriff.
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| 3 |
Experimentelle Ermittlung differentieller Wirkungsquerschnitte der Reaktionen 4He(e,e'p),4He(e,e'pp) und 4He(e,e'dp) mit besonderem Hinblick auf deren mögliche Indikationen für Nukleon -Nukleon -Korrelationen im HeliumkernEickhoff, Wilderich. January 2003 (has links)
Bonn, Univ., Diss., 2003. / Computerdatei im Fernzugriff.
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| 4 |
High energy pulses in liquid helium-4Ashworth, S. P. January 1998 (has links)
No description available.
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Study of reaction mechanisms and short range correlations in two nucleon emission off 4He using polarized photonsNatter, Frank Alexander. Unknown Date (has links) (PDF)
University, Diss., 2002--Tübingen.
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| 6 |
Pressure gradients and annealing effects in solid helium-4Suhel, Abdul Unknown Date
No description available.
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| 7 |
Pressure gradients and annealing effects in solid helium-4Suhel, Abdul 06 1900 (has links)
The Kim and Chan experiment in 2004 gave the first experimental evidence of a possible supersolid state. Even though the origin of this state is not clear yet, several experimental and theoretical investigations suggest defects are responsible for this curious phase. We have used heat pulses and thermal quenching to study pressure gradients and annealing mechanisms in solid 4He crystals. Large pressure gradients exist in crystals grown at constant volume. These can be enhanced by phase transitions, thermal quenching or by partial melting. Annealing reduces defect densities and hence pressure gradients in crystals. Our measurements show that the pressure at different points in a crystal can behave differently, even if there is little change in the crystals average pressure. We measured the activation energy that is associated with the annealing process.
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| 8 |
Experimentelle Ermittlung differentieller Wirkungsquerschnitte der Reaktionen 4He(e, e'p),4He(e, e'pp) und 4He(e, e'dp) mit besonderem Hinblick auf deren mögliche Indikationen für Nukleon -Nukleon -Korrelationen im HeliumkernEickhoff, Wilderich. Unknown Date (has links) (PDF)
Universiẗat, Diss., 2003--Bonn.
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| 9 |
Wärmeleitfähigkeit von 4He in der Nähe des superfluiden Phasenübergangs in begrenzter GeometrieTöpler, Michael. Unknown Date (has links) (PDF)
Techn. Hochsch., Diss., 2004--Aachen.
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| 10 |
Study and Realization of a Miniature Isotropic Helium Magnetometer / Etude et réalisation d'un magnétomètre isotrope miniature à pompage optique de l'hélium -4Rutkowski, Jaroslaw 11 March 2014 (has links)
Pas de résumé disponible / No abstract available.
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