Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Yu Yun-qiang"'
Autor:
Ming-ming Zhang, Li-yan An, Wen-xiang Hu, Zhong-yang Li, Yu-yun Qiang, Bao-yu Zhao, Tie-suo Han, Chen-chen Wu
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 231, Iss , Pp 113177- (2022)
The objective of this study was to investigate the effects of exposure to endotoxin on the reproductive performance of humans and animals in pregnancy and delivery period. Mucin is considered to play a critical role in protecting the tissue epitheliu
Externí odkaz:
https://doaj.org/article/10323b25825447298c8de24c752e85b6
Publikováno v:
Communications in Theoretical Physics. 30:275-280
The information of ΩΛ of a flat universe is extracted from K band galaxy number counts, without using evolution (NE) models. Cowie et al.'s observations, with model input luminosity functions taken from Efstathiou et al. (1988), Loveday et al. (199
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::897c5b37aec996775aabc0c6ae9ac77f
https://doi.org/10.1088/0253-6102/30/2/275
https://doi.org/10.1088/0253-6102/30/2/275
Publikováno v:
Chinese Astronomy and Astrophysics. 21:381-388
The dependence of the formation redshift of clusters of galaxies on the cosmological constant is discussed on the basis of recent measurements of gravitational masses and radii from X-ray astronomy techniques. For a flat CDM model with several differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60102b3b31bdbb7587400752647c18f1
https://doi.org/10.1016/s0275-1062(97)00053-2
https://doi.org/10.1016/s0275-1062(97)00053-2
Autor:
Xu Wen, Yu Yun-qiang
Publikováno v:
Chinese Astronomy and Astrophysics. 18:138-148
Through numerical integration we found a stationary galactic model and compared its rotational and dispersion curves with those of elliptical galaxies and spiral galaxy bulges. We found the dynamical radius and the luminosity radius of galaxies do no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb5c61f783d1a506b8cc6ae7d62d1a4f
https://doi.org/10.1016/0275-1062(94)90095-7
https://doi.org/10.1016/0275-1062(94)90095-7
Publikováno v:
Communications in Theoretical Physics. 15:81-86
With quantum mechanical method, we discuss the metastable states of the quantum universe, and give two eigenstates corresponding to nonzero and zero conjugate momenta P under the assumption of p = -5, where p is the ordering factor. Analyses for thei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f040845208001dc53aba5fab947fb6a
https://doi.org/10.1088/0253-6102/15/1/81
https://doi.org/10.1088/0253-6102/15/1/81
Autor:
Fan Zu-Hui, Yu Yun-qiang
Publikováno v:
Acta Physica Sinica. 39:163
The dynamics of non-singular spherical black hole suggested by Gonzalez-Diaz is investigated. We show that it's matter configuration is in peculiar equilibrium and unstable. It's formation is seldom and it is liaule to transit to a normal black hole.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9daf13e7d043a98d776433dae7b1dc40
https://doi.org/10.7498/aps.39.163-2
https://doi.org/10.7498/aps.39.163-2
Publikováno v:
Journal of Mathematical Physics; Jun91, Vol. 32 Issue 6, p1537, 4p
Autor:
Fan Zu-Hui, Yu Yun-qiang
Publikováno v:
Chinese Astronomy and Astrophysics. 13:231-239
The propagation of shock wave induced by supernovae is reconsidered, taking into account the energy loss due to thermal radiation. At the early stage of the shock, the energy loss can be considered as a perturbation. We derived the first order equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12712425c1ef68975b47be93df33ffee
https://doi.org/10.1016/0275-1062(89)90030-1
https://doi.org/10.1016/0275-1062(89)90030-1
Autor:
Yu Yun-qiang
Publikováno v:
Chinese Astronomy and Astrophysics. 9:185-190
We discuss the optical appearance of a charged collapsing stellar core. In the case Q M, if the collapse ends in a singularity, then infinite redshift and vanishing of light will be seen optically within a finite time. But the formation of singularit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1b32bd75e144e7508a6e00050c6ae1a
https://doi.org/10.1016/0275-1062(85)90036-0
https://doi.org/10.1016/0275-1062(85)90036-0
Autor:
Yu Yun-qiang
Publikováno v:
Rendiconti del Seminario Matematico e Fisico di Milano. 58:141-148
The maximal extension of Gonzalez-Schwarzschild metric is found with a deficiency that second derivative of metric atr=R does not exist.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fba81a1ec70ae40425c85d1a83ed3207
https://doi.org/10.1007/bf02925237
https://doi.org/10.1007/bf02925237