Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Jian-Chen Zhang"'
Autor:
Jian-Chen Zhang, Yu Hu, Kang Jiao, Hong-Feng Wang, Yuan-Bo Xie, Bo Yu, Li-Li Zhao, Tong-Jie Zhang
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 270, Iss 2, p 23 (2024)
Accurately measuring the Hubble parameter is vital for understanding the expansion history and properties of the Universe. In this paper, we propose a new method that supplements the covariance between redshift pairs to improve the reconstruction of
Externí odkaz:
https://doaj.org/article/516bcd6330334d4eae1207c560cfdc35
Autor:
Zhen-zhao Tao, Hai-chen Zhao, Zhi-song Zhang, Tong-Jie Zhang, Vishal Gajjar, Yan Zhu, You-ling Yue, Hai-yan Zhang, Wen-fei Liu, Shi-yu Li, Jian-chen Zhang, Cong Liu, Hong-feng Wang, Ran Duan, Lei Qian, Cheng-jin Jin, Di Li, Andrew Siemion, Peng Jiang, Dan Werthimer, Jeff Cobb, Eric Korpela, David Anderson
`Are we alone?' The Search for Extra-Terrestrial Intelligence (SETI) aims to answer this profound question. Apart from examining environments in our solar system and detecting biosignatures in exoplanet atmospheres, SETI is another main approach to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e41d061471deac850a7c4f30e603c9e
https://doi.org/10.21203/rs.3.rs-1335086/v1
https://doi.org/10.21203/rs.3.rs-1335086/v1
We present a model-independent method of reconstructing scale factor against lookback time from the Observational Hubble parameter Data (OHD). The reconstruction method is independent of dynamical models and is only based on the Friedmann-Robertson-W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b19fa8688040985dae3292076fa434b
http://arxiv.org/abs/2202.05973
http://arxiv.org/abs/2202.05973
Autor:
Zhen-Zhao Tao, Hai-Chen Zhao, Tong-Jie Zhang, Vishal Gajjar, Yan Zhu, You-Ling Yue, Hai-Yan Zhang, Wen-Fei Liu, Shi-Yu Li, Jian-Chen Zhang, Cong Liu, Hong-Feng Wang, Ran Duan, Lei Qian, Cheng-Jin Jin, Di Li, Andrew Siemion, Peng Jiang, Dan Werthimer, Jeff Cobb, Eric Korpela, David P. Anderson
As a major approach to looking for life beyond the Earth, the search for extraterrestrial intelligence (SETI) is committed to detecting technosignatures such as engineered radio signals that are indicative of technologically capable life. In this pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30d2fa44ad3532b0f5d0c089f72955eb
Publikováno v:
The Astrophysical Journal. 936:21
The $L-\sigma$ relation of HII galaxies (HIIGx) calibrated by a distance indicator is a reliable standard candle for measuring the Hubble constant $H_0$. The most straightforward calibration technique anchors them with the first tier of distance ladd
Autor:
Yu-Hui Tan, Yi Liu, Chang-Feng Wang, Wen-Juan Wei, Zi-Yu Luo, Jian-Chen Zhang, Yun-Zhi Tang, Fan Xiaowei
Publikováno v:
Chemistry – An Asian Journal. 14:2203-2209
Crowning achievement: Two homochiral crown ether clathrates were synthesized which undergo high-temperature reversible phase transition. In addition, second harmonic generation (SHG) responses and abnormal dielectric property further confirm the reve
Publikováno v:
Novon, 1998 Dec 01. 8(4), 455-456.
Externí odkaz:
https://www.jstor.org/stable/3391873
Publikováno v:
Physics of the Dark Universe. 31:100772
By the use of homotopy perturbation method-Pad\'e (HPM-Pad\'e) technique, a new analytical approximation of luminosity distance in the flat universe is proposed, which has the advantage of significant improvement for accuracy in approximating luminos
Autor:
Zi-Yu Luo, Yu-Hui Tan, Jian-Chen Zhang, Yun-Zhi Tang, Yi Liu, Fan Xiaowei, Wen-Juan Wei, Chang-Feng Wang
Publikováno v:
Chemistry – An Asian Journal. 14:2171-2171
Publikováno v:
Addictive Behaviors. 38:2596-2600
Objective The aim of the study was to compare the effectiveness of Jitai tablets (JTT) versus methadone in a community drug treatment program. Methods A cohort study was conducted with 386 eligible subjects from 7 districts to 65 communities in Shang