Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jeliazko G. Polihronov"'
Publikováno v:
Canadian Journal of Physics. 93:1279-1282
In a number of recent publications, it has been shown that the vortex tube effect occurs as a result of the extraction of work from a radial inflow of rotating gas. The delivered energy and its corresponding temperature drop have been derived from fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48f04dd7a695624276aebc97d5e4f7dc
https://doi.org/10.1139/cjp-2015-0089
https://doi.org/10.1139/cjp-2015-0089
Publikováno v:
Canadian Journal of Physics. 93:850-854
In a recent publication it was proposed that rotational cooling is due to angular propulsion. While this fact is obscured in a traditional shrouded vortex tube, it is clearly visible when the vortex tube effect is demonstrated without confining walls
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60454ce6818516963d9e3a62fd65403e
https://doi.org/10.1139/cjp-2014-0227
https://doi.org/10.1139/cjp-2014-0227
Publikováno v:
Canadian Journal of Physics. 93:89-92
In a recent publication it has been shown that vortex cooling takes place as rotational work is extracted from pressurized gas (Polihronov and Straatman. Phys. Rev. Lett. 109, 054504 (2012)). We show that such rotating systems can be treated as syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::471070a6d2fb734f9c46db2cf925e468
https://doi.org/10.1139/cjp-2014-0297
https://doi.org/10.1139/cjp-2014-0297
Publikováno v:
Journal of Physics and Chemistry of Solids. 67:1543-1549
Spark-processed Si (sp-Si) exhibits blue, green and red photoluminescence at around 385, 525 and 650 nm, depending on the wavelength of excitation. Its optical absorption spectrum reveals bands peaked approximately at 245, 277, 325 and 389 nm. The ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::332c1374f3b09e14d3ccd48aa7fbba28
https://doi.org/10.1016/j.jpcs.2006.01.121
https://doi.org/10.1016/j.jpcs.2006.01.121
Publikováno v:
Materials Science and Engineering: B. 107:124-133
Spark-processed Si (sp-Si) is a porous solid-state material. Due to the nature of its structure and morphology, the traditional methods for porosity measurements cannot be utilized. Using the measure theory and the expected value theorems of stereolo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2ac6b641dbf999df3f4a7d087ed60a9
https://doi.org/10.1016/j.mseb.2003.10.112
https://doi.org/10.1016/j.mseb.2003.10.112
Publikováno v:
Journal of Luminescence. 101:55-62
The optical absorption spectra of equilibrium Si-based ring-shaped clusters have been calculated with the semi-empirical quantum mechanical Intermediate Neglect of Differential Overlap method and Configuration Interaction. The Neglect of the Diatomic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3846206780e1254a2a0439779c8a8b96
https://doi.org/10.1016/s0022-2313(02)00388-5
https://doi.org/10.1016/s0022-2313(02)00388-5
Publikováno v:
Journal of Luminescence. 96:119-128
Substantial part of the volume of the luminescent spark-processed silicon (sp-Si) material consists of amorphous SiO 2 . The nitrogen atoms incorporated in the material substantially influence its optical properties. In order to understand the photol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbdc7dfcc5b1f476bc1a7c9b7d2f5ea3
https://doi.org/10.1016/s0022-2313(01)00414-8
https://doi.org/10.1016/s0022-2313(01)00414-8
Publikováno v:
Physical review letters. 109(5)
The presented study examines the energetics of confined fluid flow in a rotating reference frame. Parallels are drawn to the corresponding scenario of rectilinear motion, where ejection of fluid results in linear propulsion of the frame. Absorption o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d44a4035f952bcce9038c04bd5ad741b
https://pubmed.ncbi.nlm.nih.gov/23006180
https://pubmed.ncbi.nlm.nih.gov/23006180
Publikováno v:
The Journal of Chemical Physics. 125:094108
Assigning effective atomic charges that properly reproduce the electrostatic fields of molecules is a crucial step in the construction of accurate interatomic potentials. We propose a new approach to calculate these charges, which as previous approac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::166aebc0464e095131c5fec75df10140
https://doi.org/10.1063/1.2346671
https://doi.org/10.1063/1.2346671
Autor:
Polihronov, Jeliazko G.1, Straatman, Anthony G.1
Publikováno v:
Canadian Journal of Physics. Nov2015, Vol. 93 Issue 11, p1279-1282. 4p. 1 Diagram, 2 Graphs.