Zobrazeno 1 - 10
of 37
pro vyhledávání: '"B f, Borisov"'
Autor:
G. A. Kovaleva, A. M. Tupitsin, G. N. Karchevskaya, S. A. Kovalev, B. F. Borisov, A. A. Alexandrov
Publikováno v:
Neftyanoe khozyaystvo - Oil Industry. :36-39
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cbf8e6f984610268568dd91ca112f07
https://doi.org/10.24887/0028-2448-2017-5-36-39
https://doi.org/10.24887/0028-2448-2017-5-36-39
Publikováno v:
Acoustical Physics. 55:816-820
Acoustic properties of synthetic opal filled with indium at different factors of pore filling is investigated using the pulse-interference technique in the frequency range from 4 to 8 MHz and in the temperature range of 300–480 K. A shift to lower
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::911ed2d00632db3c71e54ef4805ba02d
https://doi.org/10.1134/s1063771009060165
https://doi.org/10.1134/s1063771009060165
Publikováno v:
Journal of Mathematical Sciences. 160:139-196
This paper studies a class of optimal control problems and the Hamiltonian systems generated by them in the space l2. The authors prove the existence of extremals with countably many switchings on a finite interval of time that compose a bundle with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11b161dce9dbb74f480163b7aa97861f
https://doi.org/10.1007/s10958-009-9493-0
https://doi.org/10.1007/s10958-009-9493-0
Autor:
Winfried Böhlmann, B. F. Borisov, S. V. Baryshnikov, Dieter Michel, A. V. Gartvik, A. G. Gorchakov, E. V. Charnaya
Publikováno v:
Acoustical Physics. 55:55-60
A conventional phase-pulse acoustic method was used to study melting and crystallization of sodium nitrite embedded in the pores of mesoporous silicate matrices. The pore diameter was 20, 37, and 52 A. The measurements were performed at a frequency o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::761bfd2bcd043cfd7b770ce0c6ed88ac
https://doi.org/10.1134/s1063771009010059
https://doi.org/10.1134/s1063771009010059
Publikováno v:
Acoustical Physics. 52:138-143
The processes of melting and freezing of small mercury particles embedded in porous glasses with nanometric pore sizes are studied by an ultrasonic method for various values of the pore filling factor. The filling factor is found to have a threshold,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::512f02a7e0f47fb100bc825da08d1a38
https://doi.org/10.1134/s1063771006020047
https://doi.org/10.1134/s1063771006020047
Publikováno v:
Physics of the Solid State. 46:2286-2291
The freezing and melting phase transitions for gallium embedded into a porous glass with a pore size of about 8 nm were studied using acoustic, NMR, and x-ray techniques. It was shown that the broadened solidification and melting transitions upon dee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e41738fb14f463fabc0d2dff70b7a812
https://doi.org/10.1134/1.1841395
https://doi.org/10.1134/1.1841395
Autor:
E. I. Martynova, D. Michel, P. G. Plotnikov, Cheng Tien, B. F. Borisov, E. V. Charnaya, I. G. Sorina
Publikováno v:
Physica B: Condensed Matter. 299:56-63
Acoustic technique was used to study the melting and freezing phase transitions of mercury embedded into Vycor glass. Both freezing and melting were found to be smeared and shifted noticeably to low temperatures compared to the melting point of bulk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a82aec03e7cee7ae731110199ab77fe
https://doi.org/10.1016/s0921-4526(00)00756-0
https://doi.org/10.1016/s0921-4526(00)00756-0
Autor:
A. V. Shelyapin, Yu. A. Kumzerov, MM Nassar, E. V. Charnaya, Jean-Marie Dereppe, B. F. Borisov
Publikováno v:
Physics of the Solid State. 42:193-196
An acoustic study is reported of the crystallization and melting of gallium embedded in an opal-like matrix. The variations of the velocity and absorption of longitudinal ultrasonic waves during phase transitions in the alpha and beta modifications h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e4b9cefcf5dc2e6be128d4bb5133aa5
https://doi.org/10.1134/1.1131192
https://doi.org/10.1134/1.1131192
Autor:
B. F. Borisov, E. V. Charnaya, Cheng Tien, Yu. A. Kumzerov, Dieter Michel, T. Loeser, C. S. Wur
Publikováno v:
Journal of Physics: Condensed Matter. 11:10259-10268
The melting-freezing phase transition of gallium confined within Vycor glass was studied by NMR, resistance and acoustic techniques. A single although broadened 71Ga NMR line corresponding to melted gallium was observed in contrast to lineshapes foun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9b4cedce34f15e5ffa4623cb52a9561
https://doi.org/10.1088/0953-8984/11/50/318
https://doi.org/10.1088/0953-8984/11/50/318
Autor:
B. F. Borisov, Dieter Michel, P. G. Plotnikov, E. V. Charnaya, W.-D. Hoffmann, Yu. A. Kumzerov
Publikováno v:
Nanostructured Materials. 12:515-518
The melting and freezing phase transitions of mercury and gallium in porous glasses were studied. A depression of the phase transition temperatures, a pronounced hysteresis between melting and freezing, and the melting and freezing broadening were fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1d97582e4417cfd31d447892d2ba975
https://doi.org/10.1016/s0965-9773(99)00172-5
https://doi.org/10.1016/s0965-9773(99)00172-5