Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Dae Cheol Jeong"'
Autor:
Jinyoung Park, Mi Sook Min, Dae Cheol Jeong, Seung Woo Han, Ji Hyun Kim, Hyoun Gi Cha, Han Chan Park
Publikováno v:
Journal of Asia-Pacific Biodiversity, Vol 15, Iss 4, Pp 473-480 (2022)
Naeseongcheon stream flows through Bonghwa-gun and Yecheon-gun in Gyeongbuk, South Korea. This study investigated otter genetic diversity using noninvasively collected fecal samples to determine population, sex, and kinship. In April 2019, 20 otter f
Externí odkaz:
https://doaj.org/article/aec145d3b6d140bc9bde2cb89b205997
Publikováno v:
Journal of Korean Medical Science
Background The risk of weight gain as a consequence of school closure in children during the coronavirus disease-2019 (COVID-19) pandemic has been recognized. This study was performed to investigate changes in anthropometric and metabolic parameters
Publikováno v:
Journal of the Optical Society of Korea. 18:377-381
Coupled guided modes, proposed in various modified hollow hexagonal cavities each attached internally to a hexagon, were demonstrated by investigating the laser oscillations in semiconductor cavities. The mode spacing between two adjacent lasing peak
Autor:
Dae-Cheol Jeong, Seungwon Jeon, Jae Cheol Shin, Hyun Chul Ki, Seon Hoon Kim, Doo Gun Kim, Young-Wan Choi, Jeongwoo Hwang, Hong-Seung Kim, Tae Un Kim
Publikováno v:
Nanophotonics VI.
We analyzed and demonstrated the double layered metallic nano-structures using polystyrene lift-off process on the conventional surface plasmon resonance (SPR) sensor to enhance the sensitivity of an SPR surface. The double layered plasmonic structur
Publikováno v:
Journal of nanoscience and nanotechnology. 14(8)
A simple, eco-friendly and efficient harmless chemical approach has been developed for the simultaneous nitrogen (N) doping and reduction of graphene oxide (GO) by cost free human urine using simple refluxing. Large-scale preparation of graphene has
Publikováno v:
Bulletin of the Korean Chemical Society. 27:1985-1988
The polymeric membrane electrodes based on urea derivative as an ionophore were prepared and studied for the iodide-ion selective electrode. This membrane exhibits a linear stable response over a wide concentration range () with a slope of -57.7 mV/d
Publikováno v:
Bulletin of the Korean Chemical Society. 27:1593-1596
The polymeric membrane electrodes based on N,N'-bis-pyridin-2-ylmethylene-naphthalene-1,8-diamine as an ion carrier were prepared and tested for the copper-ion selective electrode. The membrane has a linear dynamic range between and M with a Nernstia
Publikováno v:
Bulletin of the Korean Chemical Society. 26:1219-1224
We prepared lead ion-selective PVC membranes that were based on N,N'-bis-thiophene-2-ylmethylene-ethane-1,2-diamine as a membrane carrier. The membrane electrode has a linear dynamic range between 1.0 and 1.0 M with a Nernstian slope of 29.79 mV per
Publikováno v:
Talanta. 65:543-548
PVC membrane electrodes for lead ion based on N,N'-bis(salicylidene)-2,6-pyridinediamine as membrane carrier were prepared. Among their membranes, a membrane electrode (m-3) containing o-NPOE as a plasticizer and 50mol% additive displays an excellent
Autor:
Seung-Hyeon Seong, Jung Koo Kang, Il-Won Kim, Hyo Jeong Kim, Dae Cheol Jeong, Sang-Wan Ryu, Joon Sang Yu
Publikováno v:
OECC/ACOFT 2008 - Joint Conference of the Opto-Electronics and Communications Conference and the Australian Conference on Optical Fibre Technology.
High temperature operation of an InGaAsP laser was demonstrated with a paired modulation doping structure. The laser showed superior performances such as low threshold current, high optical power, and high speed modulation at high temperature.