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A study on elemental mercury adsorption behaviors of nanoporous carbons with carbon dioxide activation
Kyong-Min Bae and Soo-Jin Park 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.4 10 295-298 (4 pages)
In this work, nanoporous carbons (NPCs) were prepared by the self-assembly of polymeric carbon precursors and block copolymer template in the presence of tetraethyl orthosilicate and colloidal silica. The NPCs’ pore structures and total pore volumes were analyzed by reference to N2/77 K adsorption isotherms. The porosity and elemental mercury adsorption of NPCs were increased by activation with carbon dioxide. It could be resulted that elemental mercury adsorption ability of NPCs depended on... -
Facile preparation of self-assembled wool-based graphene hydrogels by electron beam irradiation
Mira Park, Bishweshwar Pant, Jawun Choi, Yong Wan Park, Chohye Lee, Hye Kyoung Shin, Soo-Jin Park4, Hak-Yong Kim 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 11 136-141 (6 pages)
Three dimensional self-assembled graphene hydrogels were easily fabricated by electron beam irradiation (EBI) using an aqueous solution of wool/poly(vinyl alcohol) and graphene oxide (GO). After exposure to various levels of EBI radiation, the highly porous, self-assembled, wool-based graphene hydrogels were characterized using scanning electron microscopy and Fourier-transform infrared spectroscopy; to determine the gel fraction, degree of swelling, gel strength, kinetics-of-swelling analyses... -
Mechanical and thermal properties of MWCNT-reinforced epoxy nanocomposites by vacuum assisted resin transfer molding
Si-Eun Lee, Seho Cho, Young-Seak Lee 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.1 4 32-37 (6 pages)
Multi-walled carbon nanotube (MWCNT)/epoxy composites are prepared by a vacuum assisted resin transfer molding (VARTM) method. The mechanical properties, fracture surface morphologies, and thermal stabilities of these nanocomposites are evaluated for epoxy resins with various amounts of MWCNTs. Composites consisting of different amounts of MWCNTs displayed an increase of the work of adhesion between the MWCNTs and the matrix, which improved both the tensile and impact strengths of the... -
Gotjawal Forest In Jeju Island as an Internationally Important Wetland
Yong-Chang Jang, Chan-Won Lee 한국습지학회 한국습지학회지 6 Pages
한국습지학회 한국습지학회지 2009, Vol.11 No.1 10 99-104 (6 pages)
Island of South Korea. In this article it is shown that Gotjawal forest is an internationally important wetland under the Ramsar Convention. Gotjawal forest should be regarded as a wetland because it is a subterranean hydrological system, which is classified as wetland under the Ramsar Convention. And Gotjawal forest is an internationally important wetland because it is the representative wetland type of Jeju region with hydrological importance, and because it supports rare species of plants. -
헬륨 투과형 표준리크 교정장치 개발
홍승수, 임인태, 신용현, Hong. S.S., Lim. I.T., Shin. Y.H. 한국진공학회 韓國眞空學會誌 7 Pages
한국진공학회 韓國眞空學會誌 2006, Vol.15 No.4 347-353 (7 pages)
국제도량형위원회의 질량 및 관련량 자문위원회 (CCM)가 주관하는 헬륨 투과형 표준리크(standard leak) 핵심측정표준 국제비교 (key comparison, KC)에 참여하기 위하여 기존의 정압형 리크표준기에 porous plug를 추가하여 측정범위를 $10^{-6}$ Pa L/s 까지 확장한 헬륨 미세리크 표준기를 개발하였다. 이를 위해 헬륨 기체에 대한 고진공 및 초고진공 표준기의 압력비와 porous plug의 콘덕턴스를 새롭게 측정하였으며, 개발된 장치를 이용하여 명목 값이 $5.6{ imes}10^{-4}$ Pa L/s 인 투과형 표준리크를 직접 교정한 결과 표준기와... -
플루비프로펜 함유 경피 패취제의 제제설계 및 약제학적 성질
이계주, 고유현, 우종수, 황성주 대한약학회 약학회지 11 Pages
대한약학회 약학회지 1999, Vol.43 No.4 447-457 (11 pages)
