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The Effect of Pressure on the properties of Carbon/Carbon Composites during the Carbonization Process
Hyeok-Jong Joo, In-Hwan Oh 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2002, Vol.3 No.2 3 85-92 (8 pages)
탄소/탄소 복합재의 기지를 형성시키는 방법은 화학증착법이나 액상유기물질에 함침하여 열처리하는 방법이 있다. 이중에서 용융피치를 사용할 경우, 기지의 흑연화가 가능하고 고밀도 탄소/탄소 복합재 생산이 가능한 잇점이 있다. 상압에서는 핏치의 구성성분 중 비점이 낮은 저분자량 성분이 쉽게 휘발되면서 반응계로부터 제거되지만, 가압함침은 핏치의 구성성분의 비점이 상승하며 반응계 외로 방출되지 않고, 반응계에서 다방향족 성분으로 중축합을 일으켜서 고분자화되면, 결과적으로 탄화수율의 상승과 함게 함침효율을... -
Mechanical and electrical properties of cement paste incorporated with pitch-based carbon fiber
Inkyu Rhee, Jin Hee Kim, Sang Hee Park, Sungho Lee, Bong Ryeul Ryu, Yoong Ahm Kim 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.23 4 22-29 (8 pages)
The compressive strength and electrical resistance of pitch-based carbon fiber (CF) in cementitious materials are explored to determine the feasibility of its use as a functional material in construction. The most widely used CFs are manufactured from polyacrylonitrile (PAN-based CF). Alternatively, short CFs are obtained in an economical way using pitch as a precursor in a melt-blown process (pitch-based CF), which is cheaper and more eco-friendly method because this pitch-based CF is basically... -
Matrix Metalloproteinase Inhibitors Attenuate Neuroinflammation Following Focal Cerebral Ischemia in Mice
CheolHongPark, TaeKyeongShin, HoYounLee, SoJungKim, WonSukLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.2 7 115-121 (7 pages)
The aim of this study was to investigate whether matrix metalloproteinase (MMP) inhibitors attenuate neuroinflammation in an ischemic brain following photothrombotic cortical ischemia in mice. Male C57BL/6 mice were anesthetized, and Rose Bengal was systemically administered. Permanent focal ischemia was induced in the medial frontal and somatosensory cortices by irradiating the skull with cold white light. MMP inhibitors, such as doxycycline, minocycline, and batimastat, significantly reduced... -
Effects of cross-linking methods for polyethylene-based carbon fibers: review
Kwan-Woo Kim, Hye-Min Lee, Jeong-Hun An, Byoung-Suhk Kim, Byung-Gak Min, Shin-Jae Kang, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 24 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 2 147-170 (24 pages)
In recent decades, there has been an increasing interest in the use of carbon fiber reinforced plastic (CFRP) in aerospace, renewable energy and other industries, due to its low weight and relatively good mechanical properties compared with traditional metals. However, due to the high cost of petroleum-based precursors and their associated processing costs, CF remains a specialty product and as such has been limited to use in high-end aerospace, sporting goods, automotive, and specialist... -
Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications
Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 16 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 5 89-104 (16 pages)
Materials with appropriate surface roughness and low surface energy can form superhydrophobic surfaces, displaying water contact angles greater than 150°. Superhydrophobic carbon-based materials are particularly interesting due to their exceptional physicochemical properties. This review discusses the various techniques used to produce superhydrophobic carbon-based materials such as carbon fibers, carbon nanotubes, graphene, amorphous carbons, etc. Recent advances in emerging fields such as... -
Carbon Fibers for the Repair of Abdominal Wall Defects in Rabbits
A.K.Gangwar, A.K.Sharma, Naveen Kumar, S.K.Maiti, N.Kumar, S.K.Ma 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2005, Vol.6 No.1 3 15-24 (10 pages)
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텐진 한국직접투자기업의 산업구조와 공간구조
한국중국문화학회 중국학논총 2011, Vol.34 12 243-265 (23 pages)
텐진(天津, Tianjin)은 중국의 북방지역 그 중에서도 환발해(環渤海)지역에 위치하고 있는 직할시(直轄市)로서 근대시기부터 중국경제의 중심 역할을 담당하는 지역 중의 하나이다. 텐진은 중국의 전(前) 외교부 장관을 지낸 錢其琛의 『외교십기(外交十記)』에서도 나타나고 있듯이 한국과 중국의 교류에 있어서 중요한 의의를 가진 지역이다. 이러한 역사적 의의는 이 지역에 대한 한국의 해외직접투자 유입과도 밀접한 연관을 가지게 되었다. 텐진은 한국의 중국에 대한 해외직접투자에 있어 전진기지의 역할을 하면서 베이징(北京)과...
