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Akademický článek
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Akademický článek
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Autor:
M. Omini
Publikováno v:
Philosophical Magazine
Philosophical Magazine, Taylor & Francis, 2009, 89 (01), pp.1-25. ⟨10.1080/14786430802422006⟩
Philosophical Magazine, Taylor & Francis, 2009, 89 (01), pp.1-25. ⟨10.1080/14786430802422006⟩
International audience; The quantum mechanical theory of diffusion, as recently developed for liquid metals (M. Omini, Phil. Mag. 86,1643 (2006) and 87, 5249(2007)), is now presented in a final version, which improves and clarifies the original formu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8007687541cfc470b7a5b8d61dd5a106
https://doi.org/10.1080/14786430802422006
https://doi.org/10.1080/14786430802422006
Autor:
M. Omini
Publikováno v:
Philosophical Magazine. 87:5249-5278
Collective oscillations in thermal equilibrium are shown to represent only a small fraction of the degrees of freedom of a liquid metal, the important fraction being associated to uncorrelated motions of the atoms. The present paper, however, justifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a15450f86bf1d342d0e7a9f3d49e030f
https://doi.org/10.1080/14786430701642290
https://doi.org/10.1080/14786430701642290
Autor:
M. Omini, Amelia Carolina Sparavigna
Publikováno v:
Physica B: Condensed Matter. 233:230-240
By an iteration method which has recently been applied to perfect rare gas crystals, the phonon Boltzmann equation is solved for a dielectric isotropic solid subjected to a thermal gradient and containing isotope scattering centres. The solution avoi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33f4bbf86d30e47655d3c3a218b4b8ef
https://doi.org/10.1016/s0921-4526(97)00296-2
https://doi.org/10.1016/s0921-4526(97)00296-2
Autor:
M. Omini, Amelia Carolina Sparavigna
Publikováno v:
Physica B: Condensed Matter. 212:101-112
A new iterative approach to the solution of the Boltzmann equation is presented. The convergence of the iteration procedure is checked in reference to an isotropic solid subjected to a thermal gradient. The resulting thermal conductivity for an argon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d0e74b4e1da4e420e3dc47752db26ca
https://doi.org/10.1016/0921-4526(95)00016-3
https://doi.org/10.1016/0921-4526(95)00016-3
Autor:
M. Omini
Publikováno v:
Philosophical Magazine B. 69:1197-1215
The coupled Boltzmann equations for phonons and electrons in the low-temperature limit are solved through a perturbative method in which the phonon-phonon interaction is treated as a small perturbation. In this way it is possible to define the extens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6985fafb1c4c2ab976b3f98cd62e951
https://doi.org/10.1080/01418639408240189
https://doi.org/10.1080/01418639408240189
Publikováno v:
International Journal of Thermophysics. 15:215-227
A new method to measure the thermal diffusivity of liquids is presented. It requires determination of the time dependence of the thermal expansion of the liquid when it is subjected to a heat source at the top of the cell containing the liquid. The h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a9bef3033085c92eaa3d1bc2e463ec7
https://doi.org/10.1007/bf01441583
https://doi.org/10.1007/bf01441583
Publikováno v:
International Journal of Thermophysics. 13:711-718
A dilatometric method is presented, suitable to obtain both thermal diffusivity and conductivity of low-conducting solids with a low expansion coefficient. The repeatibility of the measurements of thermal conductivity is 3%, whereas that for diffusiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c5b2ad878f056ee5e8821b590dd69c2
https://doi.org/10.1007/bf00501951
https://doi.org/10.1007/bf00501951
Publikováno v:
International Journal of Thermophysics. 11:1111-1126
Thermal diffusivity and thermal expansion in high-conducting solids can be measured by means of a capacitance method, which turns out to be simple, reliable, and accurate and yields the first property with an accuracy of ∼1% and the second one with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77d005f16be14edb2b1dae377ded1893
https://doi.org/10.1007/bf00500564
https://doi.org/10.1007/bf00500564