Zobrazeno 1 - 10
of 325
pro vyhledávání: '"Zhang Ming-jian"'
Publikováno v:
Open Life Sciences, Vol 18, Iss 1, Pp e8707-46 (2023)
Ectopic thyroid is a rare malformation induced by a migration defect in the developing gland during embryogenesis. In 90% of cases, the ectopic thyroid is located in the lingual region, whereas it is extremely rare in the abdominal cavity, particular
Externí odkaz:
https://doaj.org/article/a8a760f9fe5646788dbd5c235f980e6a
Akademický článek
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Autor:
Zhang, Ming-Jian, Li, Hong
In the present paper, we investigate three scalar fields, \qu field, phantom field and tachyon field, to explore the source of dark energy, using the Gaussian processes method from the background data and perturbation growth rate data. The correspond
Externí odkaz:
http://arxiv.org/abs/1809.08936
Autor:
Zhang, Ming-Jian, Li, Hong
Publikováno v:
Eur. Phys. J. C (2018) 78:460
In the present paper, we investigate the dark energy equation of state using the Gaussian processes analysis method, without confining a particular parametrization. The reconstruction is carried out by adopting the background data including supernova
Externí odkaz:
http://arxiv.org/abs/1806.02981
Autor:
Zhang, Ming-Jian, Xia, Jun-Qing
The possible slowing down of cosmic acceleration was widely studied. However, the imposition of dark energy parametrization brought some tensions. In our recent paper, we test this possibility using a model-independent method, Gaussian processes. How
Externí odkaz:
http://arxiv.org/abs/1701.04973
Autor:
Zhang, Ming-Jian, Xia, Jun-Qing
Publikováno v:
JCAP12(2016)005
Much focus was on the possible slowing down of cosmic acceleration under the dark energy parametrization. In the present paper, we investigate this subject using the Gaussian processes (GP), without resorting to a particular template of dark energy.
Externí odkaz:
http://arxiv.org/abs/1606.04398
$Om(z)$ is a diagnostic approach to distinguish dark energy models. However, there are few articles to discuss what is the distinguishing criterion. In this paper, firstly we smooth the latest observational $H(z)$ data using a model-independent metho
Externí odkaz:
http://arxiv.org/abs/1606.00168
Publikováno v:
Eur. Phys. J. C (2017) 77:434
In the present paper, we investigate the cosmographic problem using the bias-variance trade-off. We find that both the z-redshift and the $y=z/(1+z)$-redshift can present a small bias estimation. It means that the cosmography can describe the superno
Externí odkaz:
http://arxiv.org/abs/1601.01758
Autor:
Yuan, Wen-Shuo, Gan, Yun-Dan, Jiang, Cheng-Lu, Zhu, Sheng-Hai, Zhang, Ming-Jian, Liu, Fu-Sheng, Tang, Bin, Hong, Dan, Liu, Qi-Jun
Publikováno v:
In Chemical Physics 1 August 2021 548
The phase space analysis of cosmological parameters $\Omega_{\phi}$ and $\gamma_{\phi}$ is given. Based on this, the well-known quintessence cosmology is studied with an exponential potential $V(\phi)=V_{0}\exp(-\lambda\phi)$. Given observational dat
Externí odkaz:
http://arxiv.org/abs/1504.04582