Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Hongcheol Lee"'
Publikováno v:
Energies, Vol 15, Iss 15, p 5434 (2022)
Hydrogen, which has a high energy density and does not emit pollutants, is considered an alternative energy source to replace fossil fuels. Herein, we report an experimental study on hydrogen leaks and ventilation methods for preventing damage caused
Externí odkaz:
https://doaj.org/article/36be4ed4bbb1421898f83786906fc67e
Publikováno v:
Korean Journal of Air-Conditioning and Refrigeration Engineering. 34:380-389
Autor:
Hongcheol Lee, Inju Hwang
Publikováno v:
The KSFM Journal of Fluid Machinery. 19:33-36
The investigation on the verification of availability simulation for small-scale plant has been carried out. This study focuses on the availability variation induced by number of equipment and iteration with failure density function. The equipment cl
Autor:
Inju Hwang, Hongcheol Lee
Publikováno v:
The KSFM Journal of Fluid Machinery. 19:10-13
Publikováno v:
Transactions of the Society of CAD/CAM Engineers. 20:36-43
Received 11 November 2014; received in revised form 3 December 2014; accepted 5 December 2014ABSTRACT Recently, a number of evaluation studies on availability of plant were carried out. This studywas conducted to verify of the reliability of a simula
Publikováno v:
Current Applied Physics. 13:743-747
Light trapping is a key issue in improving the efficiency of thin-film Si solar cells, and using a back reflector material plays a critical role in improving a cell's light-trapping efficiency. In this study, we developed n -type microcrystalline sil
Autor:
Soo-Hyun Kim, Hongcheol Lee, Sungeun Lee, Woo Young Kim, Wonki Yoon, Heon-Min Lee, Jin Hyung Jun, Byung-Kee Lee, Seh-Won Ahn, Hyun Lee, Taeho Moon
Publikováno v:
Progress in Photovoltaics: Research and Applications. 20:294-297
ZnO : Al films were additionally deposited on textured transparent conducting oxide thin films to improve the surface morphologies formed in the etching process. The efficiency of the µc-Si : H cell was enhanced from 7.0% (uncoated) to 8.0% (150-nm-
Autor:
Sun-Tae Hwang, Byung Woo Jeoung, Je Seok Kim, Taeho Moon, Hongcheol Lee, Gun Young Hong, Byung-Gil Ryu, Eun-A Moon
Publikováno v:
Electrochemical and Solid-State Letters. 12:J61
The effects of Eu 2+ co-doping were examined on vacuum ultraviolet (VUV) photoluminescence properties of BaMgAl 10 O 17 :Mn 2+ phosphors. The BaMgAl 10 O 17 :Mn 2+ ,Eu 2+ phosphors were synthesized with various Eu concentrations ranging from 0 to 2 a
Publikováno v:
SID Symposium Digest of Technical Papers. 37:560
We fabricated and evaluated AC-PDP with thin black rib layer on the white barrier rib. The thin black rib was prepared by green sheet using the die coater. AC-PDP with thin black rib has high contrast ratio in the bright room than normal AC-PDP by me
Autor:
Ji, Hyon Wook1 (AUTHOR) jihyonwook@kict.re.kr, Lee, Hongcheol1 (AUTHOR) hclee@kict.re.kr, Hwang, Inju1 (AUTHOR), Jang, Heela1 (AUTHOR)
Publikováno v:
Energies (19961073). Aug2022, Vol. 15 Issue 15, p5434-5434. 13p.