Zobrazeno 1 - 10
of 163
pro vyhledávání: '"CHEE-KEONG TAN"'
Autor:
Cheng-Chieh Lin, Tsai-Chung Li, Shih-Wei Lai, Chia-Ing Li, Kuo-Che Wang, Chee-Keong Tan, Kim-Choy Ng, Chiu-Shong Liu
Publikováno v:
McGill Journal of Medicine, Vol 6, Iss 1 (2020)
Our study used data collected in Chung-Hsing Village in Taiwan in May 1998 to evaluate the distribution of triglycerides and the association between hypertriglyceridemia and its correlates in elderly people. All individuals aged 65 and over were recr
Externí odkaz:
https://doaj.org/article/cc6f2c2909ba4a4d98ce2525410b361b
Publikováno v:
AIP Advances, Vol 10, Iss 2, Pp 025103-025103-7 (2020)
Effective filtration of orbital angular momentum (OAM) modes is essential to achieve multiple-channel data transmission in an OAM fiber for telecommunication applications. The nature of helical-shaped OAM wave propagation possessing many topological
Externí odkaz:
https://doaj.org/article/269bcf563c494b2089fa5255c409412f
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract The III-Nitride digital alloy (DA) is comprehensively studied as a short-period superlattice nanostructure consisting of ultra-thin III-Nitride epitaxial layers. By stacking the ultra-thin III-Nitride epitaxial layers periodically, these nan
Externí odkaz:
https://doaj.org/article/93502ba047904cff91237a72a7a92ee6
Autor:
Xiaoli Liu, Chee-Keong Tan
Publikováno v:
AIP Advances, Vol 9, Iss 12, Pp 125204-125204-6 (2019)
First-principles density functional theory is applied to investigate the electronic and structural properties of dilute-Se β-Ga2(O1−xSex)3 alloys with the Se-content ranging from 0% to 16.67%. The findings showed that the addition of Se has signif
Externí odkaz:
https://doaj.org/article/b30f56c47b4542a7aa7a00510cbdb74a
Autor:
Xiaoli Liu, Chee-Keong Tan
Publikováno v:
AIP Advances, Vol 9, Iss 3, Pp 035318-035318-6 (2019)
We report on the electronic properties of β-(InxGa1-x)2O3 alloys with different In-content up to 18.75% using density functional theory (DFT) calculations. The effect of In-content on the band structures as well as the crystal structures of β-(InxG
Externí odkaz:
https://doaj.org/article/2f9af445318a40f0ac26bd5b3fe48526
Autor:
Mohamed Mohamed, Chee-Keong Tan, Ali Fouda, Mohammed Saber Gad, Osayed Abu-Elyazeed, Abdel-Fatah Hashem
Publikováno v:
Energies, Vol 13, Iss 21, p 5708 (2020)
This paper first describes a slow catalytic pyrolysis process used for synthesizing biodiesel from waste cooking oil (WCO) as a feedstock. The influence of variations in the catalyst type (sodium hydroxide and potassium hydroxide), and catalyst conce
Externí odkaz:
https://doaj.org/article/394423375b4543339189a498f30c1d3e
Publikováno v:
AIP Advances, Vol 8, Iss 8, Pp 085119-085119-8 (2018)
The electronic properties of dilute-P AlN1-xPx alloys are investigated by means of First-Principle Density Functional Theory (DFT) calculations, where the phosphorus (P) content is varied from 0% up to 6.25%. Band structure calculations indicate sign
Externí odkaz:
https://doaj.org/article/698d5e610da0468cb5617915e9428c8d
Publikováno v:
AIP Advances, Vol 7, Iss 3, Pp 035212-035212-8 (2017)
Auger recombination in a semiconductor is a three-carrier process, wherein the energy from the recombination of an electron and hole pair promotes a third carrier to a higher energy state. In semiconductor quantum wells with increased carrier densiti
Externí odkaz:
https://doaj.org/article/e8f5983f017c4d82b6f718f851067877
Autor:
Chee-Keong Tan, Nelson Tansu
Publikováno v:
AIP Advances, Vol 5, Iss 5, Pp 057135-057135-7 (2015)
The evaluation of Auger recombination process for dilute-As GaNAs alloy is presented. Our analysis indicates the suppression of interband Auger recombination mechanism in dilute-As GaNAs alloy in the green spectral regime. The interband Auger coeffic
Externí odkaz:
https://doaj.org/article/be47793a380c4480bc58b4423b50f54a
Autor:
Chee-Keong Tan, Nelson Tansu
Publikováno v:
AIP Advances, Vol 5, Iss 1, Pp 017129-017129-8 (2015)
Density functional theory (DFT) calculations with the local density approximation (LDA) functional are employed to investigate the band alignment of dilute-As GaNAs alloys with respect to the GaN alloy. Conduction and valence band positions of dilute
Externí odkaz:
https://doaj.org/article/bcb199b6b3f24fa08860dae36bd5cdec