Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Sh. E. Kekutia"'
Autor:
G. A. Sheshin, E. Ya. Rudavskii, Sh. E. Kekutia, N. D. Chkhaidze, V. K. Chagovets, Norbert Mulders, A. A. Zadorozhko
Publikováno v:
Low Temperature Physics. 35:752-756
The velocity of fast and slow collective modes of 90, 94 and 98% porosity aerogels filled with superfluid helium were measured by means of low-frequency resonant technique at temperatures 0.5–2.5 K. The temperature dependences of velocities of both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b42acc35a33ebb1a13ba479b90f61ca3
https://doi.org/10.1063/1.3253393
https://doi.org/10.1063/1.3253393
Autor:
Sh. E. Kekutia, N. D. Chkhaidze
Publikováno v:
Low Temperature Physics. 32:621-627
The dynamical equations are obtained for a system comprising a porous material and a He3–He4 superfluid mixture. The elastic coefficients that appear in the equations are expressed in terms of physically measurable quantities. The equations obtaine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f1326e302ebba83388a0aa545519eab
https://doi.org/10.1063/1.2216213
https://doi.org/10.1063/1.2216213
Publikováno v:
Physics Letters A. 300:672-686
The theory of sound propagation in macroscopically isotropic and homogeneous porous media saturated with superfluid ^4He(so-called He II) has been developed neglecting all damping processes. The case when the normal fluid component is locked inside a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24cebfbabda940b08f797a4e4c554566
https://doi.org/10.1016/s0375-9601(02)00897-6
https://doi.org/10.1016/s0375-9601(02)00897-6
Autor:
Sh. E. Kekutia, N. D. Chkhaidze
Publikováno v:
Low Temperature Physics. 34:165-167
The dynamical equations for superfluid He–A3 filled aerogel in finite magnetic fields are determined. The speeds of propagating longitudinal modes in the A1 and A phases of this system are found. It is shown that sound phenomena in the case of He
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55f41af0b15e832952fbfa147dbcd566
https://doi.org/10.1063/1.2889399
https://doi.org/10.1063/1.2889399
Autor:
Sh E Kekutia, N D Chkhaidze
Publikováno v:
Journal of Statistical Mechanics: Theory and Experiment. 2005:P12008-P12008
A theory of the propagation of acoustic waves in a porous medium filled with superfluid solution is developed. The elastic coefficients in the system of equations are expressed in terms of physically measurable quantities. The equations obtained desc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2233dba934fa5daec07018e189fbba0d
https://doi.org/10.1088/1742-5468/2005/12/p12008
https://doi.org/10.1088/1742-5468/2005/12/p12008