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of 149
pro vyhledávání: '"Seokcheon Lee"'
Autor:
Seokcheon Lee
Publikováno v:
Astronomy, Vol 3, Iss 2, Pp 100-113 (2024)
Cosmography, as an integral branch of cosmology, strives to characterize the Universe without relying on pre-determined cosmological models. This model-independent approach utilizes Taylor series expansions around the current epoch, providing a direc
Externí odkaz:
https://doaj.org/article/ef748f801aef4e689e2b090e20cf3806
Autor:
Seokcheon Lee
Publikováno v:
Particles, Vol 7, Iss 2, Pp 309-326 (2024)
It is known that dimensional constants, such as ℏ, c, G, e, and k, are merely human constructs whose values and units vary depending on the chosen system of measurement. Therefore, the time variations in dimensional constants lack operational signi
Externí odkaz:
https://doaj.org/article/c138b443a3954e5190953b33ecff8a82
Autor:
Seokcheon Lee
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
The Robertson–Walker (RW) metric, derived from the cosmological principle and Weyl’s postulate, characterizes the ΛCDM cosmological model. Traditionally, in this framework, the assumption of a constant speed of light leads to specific cosmologic
Externí odkaz:
https://doaj.org/article/1a5f95f55e17433498d293a0401d5e48
Autor:
Seokcheon Lee
Publikováno v:
Universe, Vol 10, Iss 6, p 268 (2024)
In the context of the minimally extended varying speed of light (meVSL) model, both the absolute magnitude and the luminosity distance of type Ia supernovae (SNe Ia) deviate from those predicted by general relativity (GR). Using data from the Pantheo
Externí odkaz:
https://doaj.org/article/653b7ea7f1954f8d85592cfb1d7f9de4
Publikováno v:
Systems, Vol 12, Iss 3, p 69 (2024)
Disaster management requires efficient allocation of essential facilities with consideration of various objectives. During the response and recovery phase of disaster management (RRDM), various types of missions occur in multiple periods, and each of
Externí odkaz:
https://doaj.org/article/8e56aa1d130246baa92bcba582d1f267
Autor:
Dawei Wang, Rhoann Kerh, Sungbum Jun, Seokcheon Lee, Roy William Mayega, Julius Ssentongo, Andualem Oumer, Md Haque, Priyanka Brunese, Yuehwern Yih
Publikováno v:
BMC Medical Informatics and Decision Making, Vol 22, Iss 1, Pp 1-14 (2022)
Abstract Background Thirteen essential maternal child health (MCH) commodities, identified by the UN Commission on Life-Saving Commodities for Women and Children, could save the lives of more than 6 million women and children in Low-and-Middle-Income
Externí odkaz:
https://doaj.org/article/df6b0022fce64b09a1612df61ce4d516
Autor:
Seokcheon Lee
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 6, Pp 1-5 (2018)
Abstract The gravitational wave (GW) detection of a binary neutron star inspiral made by the Advanced LIGO and Advanced Virgo paves the unprecedented way for multi-messenger observations. The propagation speed of this GW can be scrutinized by compari
Externí odkaz:
https://doaj.org/article/9d48eda25fee484997d0419d98eb520e
Publikováno v:
Physics Letters B, Vol 746, Iss , Pp 406-409 (2015)
Recently, BICEP2 measurements of the cosmic microwave background (CMB) B-mode polarization has indicated the presence of primordial gravitational waves at degree angular scales, inferring the tensor-to-scalar ratio of r=0.2 and a running scalar spect
Externí odkaz:
https://doaj.org/article/70579274dd274253a4221666e3c062d2
Publikováno v:
Physics Letters B, Vol 736, Iss C, Pp 403-410 (2014)
Under the standard perturbation theory (SPT), we obtain the fully consistent third-order density fluctuation and kernels for the general dark energy models without using the Einstein–de Sitter (EdS) universe assumption for the first time. We also s
Externí odkaz:
https://doaj.org/article/5ce3717b4c3648b08e7561d9e3a0b299
Autor:
Pu-Tai Yang, Seokcheon Lee
Publikováno v:
International Journal of Distributed Sensor Networks, Vol 8 (2012)
In recent years, there has been a rapid proliferation of research concerning Wireless Sensor Networks (WSNs), due to the wide range of potential applications that they can be used for. Lifetime is one of the most important considerations for WSNs due
Externí odkaz:
https://doaj.org/article/3af51b9b2d324f3394e3dcbdfa93247f