Zobrazeno 1 - 10
of 972
pro vyhledávání: '"Ze-Wei An"'
Traditional CNC technology mostly uses the method of increasing the degree of interpolation polynomial when constructing $C^2$ continuous NURBS curves, but this often leads to the appearance of Runge phenomenon in interpolation curves. Alternatively,
Externí odkaz:
http://arxiv.org/abs/2411.03935
The Macquart relation and time-delay cosmography are now two promising ways to fast radio burst (FRB) cosmology. In this work, we propose a joint method that combines strongly lensed and unlensed FRBs for improving cosmological parameter estimation b
Externí odkaz:
http://arxiv.org/abs/2411.03126
Publikováno v:
ACS Omega, Vol 9, Iss 47, Pp 46679-46697 (2024)
Externí odkaz:
https://doaj.org/article/6eae8bc8e260417c877b83a499428f93
Publikováno v:
Sci. China-Phys. Mech. Astron. 66, 120412 (2023)
We present a forecast of the cosmological parameter estimation using fast radio bursts (FRBs) from the upcoming Square Kilometre Array (SKA), focusing on the issues of dark energy, the Hubble constant, and baryon density. We simulate $10^5$ and $10^6
Externí odkaz:
http://arxiv.org/abs/2307.01605
Autor:
GE Jing-chen, SHANG Min, YAO Ming-yang, WEI Ming-fei, SHI Jun-zhan, YAO Ze-wei, SHI Jia-yin, LI Fan
Publikováno v:
Fayixue Zazhi, Vol 40, Iss 4, Pp 324-329 (2024)
ObjectiveTo compare the application value of three image post-processing techniques volume rendering （VR）, multiplanar reformation （MPR） and curved planar reformation （CPR） in the identification of rib fracture malunion.MethodsThe types a
Externí odkaz:
https://doaj.org/article/157453aa41d6481ca11d24b3a2c55945
Risk evaluation for diabetic retinopathy in Chinese renal-biopsied type 2 diabetes mellitus patients
Publikováno v:
International Journal of Ophthalmology, Vol 17, Iss 7, Pp 1283-1291 (2024)
AIM: To investigate diabetic retinopathy (DR) prevalence in Chinese renal-biopsied type 2 diabetes mellitus (T2DM) patients with kidney dysfunction, and to further evaluate its relationship with diabetic nephropathy (DN) incidence and the risk factor
Externí odkaz:
https://doaj.org/article/fd8e241b78a84b9eace919edeb7e9e61
Publikováno v:
Universe 2024, 10(5), 207
Fast radio bursts (FRBs) have been found in great numbers, but the physical mechanism of these sources is still a mystery. The redshift evolutions of the FRB energy distribution function and the volumetric rate shed light on the origin of FRBs. Howev
Externí odkaz:
http://arxiv.org/abs/2303.16775
Fast radio bursts (FRBs) can be used to measure cosmological parameters by employing the Macquart relation. However, at present, only a small number of FRB events are localized to host galaxies with known redshifts. Inspired by the dark siren method
Externí odkaz:
http://arxiv.org/abs/2212.13433
Autor:
Song, Ji-Yu, Wang, Ling-Feng, Li, Yichao, Zhao, Ze-Wei, Zhang, Jing-Fei, Zhao, Wen, Zhang, Xin
Publikováno v:
Sci. China-Phys. Mech. Astron. 67, 230411 (2024)
Gravitational waves (GWs) from compact binary coalescences encode the absolute luminosity distances of GW sources. Once the redshifts of GW sources are known, one can use the distance-redshift relation to constrain cosmological parameters. One way to
Externí odkaz:
http://arxiv.org/abs/2212.00531
Publikováno v:
JCAP 04 (2023) 022
Interacting dark energy (IDE) scenario assumes that there exists a direct interaction between dark energy and cold dark matter, but this interaction is hard to be tightly constrained by the current data. Fast radio bursts (FRBs) will be seen in large
Externí odkaz:
http://arxiv.org/abs/2210.07162