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DVFS 가능한 프로세서에서 성능을 최대로 하기 위한 3차원 적층 L2 캐시의 설계
강경수(Kyungsu Kang),경종민(Chong-Min Kyung) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6
3D integration is a new technology to improve the chip integration density by stacking multiple dies on the same chip. However, the high power density (i.e., power dissipation per unit volume) due to the high integration incurs temperature-related problems in reliability, power consumption, performance and system cooling cost. In this paper, a design-time solution, which explores the architectural design of 3D stacked cache memories, is proposed. The experimental results on SPEC2000 benchmark have shown that the proposed method offers up to 22% performance improvement in terms of instructions per second with 41% energy saving in terms of energy per instructions.
컬러감자 홍영, 자영으로부터 항산화 화합물의 정량 및 간세포 보호 효과 탐색
김상민 ( Sang Min Kim ),강경수 ( Kyungsu Kang ),하인수 ( In Su Ha ),노주원 ( Chu Won Nho ),남정환 ( Jung Hwan Nam ),조지홍 ( Ji Hong Cho ),권오근 ( Oh Keun Kwon ),정진철 ( Jin Cheol Jeong ),이재권 ( Jae Kwon Lee ),판철호 ( Cheol H 충북대학교 과학교육연구소 2014 과학교육연구논총 Vol.29 No.1
The colored Potatoes, ‘Hongyoung’ and ‘Jayoung’ cultivars bred in Rural Development Administration (Korea) contain antioxidant compounds such as chlorogenic acids and anthocyanin compounds in the tuber. In this study, main antioxidant compounds in both cultivars were identified by LC-MS analysis and quantified by HPLC analysis. The result showed that three compounds (petunidin-3-O-coumaroyl-rutinoside-5-O-glucoside, pelargonidin-3-Ocoumaroyl- rutinoside-5-O-glucoside and peonidin-3-O-coumaroyl-rutinoside -5-O-glucoside) were identified as main anthocyanins in ‘Jayoung’ cultivar while only pelargonidin-3-O-coumaroyl-rutinoside-5-O-glucoside was presented as a major anthocyanin in ‘Hongyoung’ cultivar. Among chlorogenic acids, 5-O-caffeoylquinic acid was the most abundant in both cultivars. In order to evaluate hepatoprotective activity of these potatoes, the methanol extracts and their serial solvent fractions were prepared by solvent partition and XAD-7 column chromatography method and treated on hepatoma HepG2 cells of which cytotoxicity was induced by tert-butyl hydroperoxide. Among the tested samples, anthocyanin-rich fractions from both cultivars contained the strongest hepatoprotective effect on HepG2 cells. This result indicates that hepatoprotective effect of these fractions can be occurred from anthocyanin.
안과수술용 근적외선 입체현미경의 신뢰도 확보를 위한 프로세스 정립
김민호(Min-Ho Kim),이종환(Jonghwan Lee),위도영(Doyeong Wie),조중길(Joonggil Cho),강경수(Kyungsu Kang) 한국산업경영시스템학회 2013 한국산업경영시스템학회지 Vol.36 No.2
When developing a product, ensuring the quality and reliability is essential. Reliability process is always underestimated compared to its importance, especially in the field of domestic medical devices. In this paper, reliability process developed for near-infrared solid microscope, based on a variety of existing practices and other product process. The following findings were obtained as research progressed. First, learning about the medical equipment needed to assure the quality and reliability standards. Second, reliability process established to design a product in the field of medical devices.