18 research outputs found
Vacuum Polarization at Finite Temperature around a Magnetic Flux Cosmic String
We consider a general situation where a charged massive scalar field
at finite temperature interacts with a magnetic flux cosmic string.
We determine a general expression for the Euclidean thermal Green's function of
the massive scalar field and a handy expression for a massless scalar field.
With this result, we evaluate the thermal average and the
thermal average of the energy-momentum tensor of a nonconformal massless scalar
field.Comment: 22 pages, latex, no figure
Ground State Energy of Massive Scalar Field Inside a Spherical Region in the Global Monopole Background
Using the zeta function regularization method we calculate the ground state
energy of scalar massive field inside a spherical region in the space-time of a
point-like global monopole. Two cases are investigated: (i) We calculate the
Casimir energy inside a sphere of radius and make an analytical analysis
about it. We observe that this energy may be positive or negative depending on
metric coefficient and non-conformal coupling . In the limit
we found a zero result. (ii) In the second model we surround the
monopole by additional sphere of radius and consider scalar field
confined in the region between these two spheres. In the latter, the ground
state energy presents an additional contribution due to boundary at which
is divergent for small radius. Additional comments about renormalization are
considered.Comment: 30 pages and 2 figures. LATEX fil
Ground State Energy of Massive Scalar Field in the Background of Finite Thickness Cosmic String
We calculate the ground state energy of a massive scalar field in the
background of a cosmic string of finite thickness (Gott-Hiscock metric). Using
zeta functional regularization we discuss the renormalization and the relevant
heat kernel coefficients in detail. The finite (non local) part of the ground
state energy is calculated in 2+1 dimensions in the approximation of a small
mass density of the string. By a numerical calculation it is shown to vanish as
a function of the radius of the string and of the parameter of the
nonconformal coupling.Comment: 23 pages, Latex, 3 figures, subm. to Phys. Rev.
Корреляционные зависимости для определения выгорания и содержания актинидов в облученном ядерном топливе
Correlation dependencies have been obtained to determine the burnout and content of actinides in spent nuclear fuel based on an analysis of published experimental data on the definition of burnout and isotopic composition of spent nuclear fuel rods for samples of PWR and VVER reactor types using statistical methods. Given dependencies of the mass concentration of actinides at the end of irradiation after checking for normality correspond to the initial experimental data. These relationships may be of interest to use for nondestructive methods for the purpose of express evaluation of spent nuclear fuel burnout at all stages of the nuclear cycle.Получены корреляционные зависимости для определения выгорания и содержания актинидов в облученном ядерном топливе на основании анализа опубликованных экспериментальных данных по определению выгорания и изотопного состава облученного ядерного топлива для образцов твэлов реакторов PWR и ВВЭР с использованием статистических методов. Корреляционные зависимости по определению массовой концентрации актинидов по окончании облучения после проверки на нормальность соответствуют исходным экспериментальным данным. Эти зависимости могут представить интерес для использования методов неразрушающего контроля с целью проведения экспрессной оценки выгорания и содержания компонентов ОЯТ на всех этапах ядерного цикла
Some cases of untranslatability between russian and english
Serebriany Sergei. Some cases of untranslatability between russian and english [Электронный ресурс] / Sergei Serebriany// Язык как инструмент понимания и непонимания : русско-американские лингвистические и культурные сопоставления : материалы Междунар. науч.-практ. конф., РГГУ (Москва), 26-27 февр. 2008 г. - Москва : РГГУ, 2008. - С. 81-87
Some cases of untranslatability between russian and english
Serebriany Sergei. Some cases of untranslatability between russian and english [Электронный ресурс] / Sergei Serebriany// Язык как инструмент понимания и непонимания : русско-американские лингвистические и культурные сопоставления : материалы Междунар. науч.-практ. конф., РГГУ (Москва), 26-27 февр. 2008 г. - Москва : РГГУ, 2008. - С. 81-87
Teaching philosophy at university: Western philosophy versus non-Western philosophies
Serebriany Sergei. Teaching philosophy at university: Western philosophy versus non-Western philosophies [Электронный ресурс] / Sergei Serebriany// Философия в диалоге культур : Всемирный день философии (Москва-Санкт-Петербург, 16-19 ноября 2009 года) : материалы / Рос. акад. наук, Ин-т философии. - М. : Прогресс-Традиция, 2010. - С. 1238-1241
On the "soviet paradigm"
Serebriany S. D. On the "soviet paradigm" [Электронный ресурс] : (remarks of an indologist) / Sergei Serebriany// Studies in East European thought. - [S. l.] : Springer, 2005. - Vol. 57, N 2. - P. 93-138
On the "soviet paradigm"
Serebriany S. D. On the "soviet paradigm" [Электронный ресурс] : (remarks of an indologist) / Sergei Serebriany// Studies in East European thought. - [S. l.] : Springer, 2005. - Vol. 57, N 2. - P. 93-138
Le roman en Russie et en Inde. Deux cas de transfert d’un objet culturel occidental dans une culture non occidentale
Cet article peut être appelé un essai de « transférologie comparée ». Deux histoires sont racontées brièvement et comparées entre elles : il s’agit de voir comment le roman en tant que genre littéraire produit par la culture européenne moderne fut transféré et transplanté d’abord en Russie (au xviiie siècle) et en Inde (au xixe siècle). Le transfert du roman en Russie a produit aux xixe et xxe siècles des fruits connus de tous. Le roman s’est aussi enraciné en Inde, mais les résultats de cette implantation, bien qu’ils soient importants et populaires localement, n’ont pas pour le moment également réussi sur le marché global (mondial). Dans cet article on propose quelques raisons de cet échec comparatif.Diesen Beitrag kann man als einen Versuch « vergleichender Transferologie » betrachten. Zwei Geschichten werden hier erzählt und miteinander verglichen : wie der Roman (eine in der modemen europäischen Kultur wurzelnde literarische Gattung) erstens nach Rußland (im 18. Jahrhundert) und spater auch nach Indien (im 19. Jahrhundert) verpflanzt wurde. Die Verpflanzung der Romangattung nach Rußland hat im 19. und 20. Jahrhundert weltberühmte literarische Werke hervorgebracht. Der Roman als Gattung etablierte sich auch in Indien, aber die einzelnen Werke, so wichtig sie auch auflokaler Erbene sein konnten, sind auf dem Weltmarkt nicht so erfolgreich gewesen. In dem vorliegenden Beitrag versucht man auch einige Ursachen eines solchen Mißerfoiges zu nennen.This paper may be called an essay in « comparative transferology ». Two stories are told in brief and compared between themselves :how the novel (a literary genre produced by modem Western culture) was transferred and transplanted first to Russia (in the 18th century) and later to India (in the 19th century). The transference (transplantation) of the novel to Russia produced a world-famous growth in the 19th and 20th centuries. The novel in India has also taken roots, but the fruits, although quite important and popular locally, have not yet been as successful in the global market. In the paper, some reasons for this comparative failure are suggested