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자연언어처리를 기반으로 한 한·중 대조 연구 방법에 대한 試探
申景?(Shin, Kyeong-mee),李彰浩(Lee, Cheng-ho),崔圭鉢(Choi, Kyu-bal) 중국어문학연구회 2016 중국어문학논집 Vol.0 No.96
This paper proposes a method of contrastive Korean and Chinese based on Natural Language Processing(NLP). There is a rising interest in studying information processing with the development of science and technology. For this reason, there has been a visible change in language and linguistics research. For example, we have often used corpus, information retrieval, machine translation, and voice recognition systems etc. Furthermore, a lot of people use this for studies first or second language. So we began an exploration for new research based on NLP. There are many problems in Chinese NLP systems, because the Chinese words have various meanings and functions, the computer system keeps generating errors. We need to have a new way of contrasting Korean and Chinese sentence patterns. The first way to contrast them is to use the part of speech(POS) and feature taggers. It is very useful gadgets for helping us to understand what the similarities and differences between word and word are. This is merely a first step for improving the accuracy and efficiency of Computational Language Systems. The tagging data make us prepare for a Computational Language Systems that we able to understand Korean and Chinese sentence patterns. And we propose to collect the data of POS and features taggers. It’s very important material for researchers to analyze the relationship between Korean and Chinese. This subject must be researched, but it’s still a work in progress, and we need a good collaborative research project on contrasting of Korean and Chinese.
이신경,김성훈,이경주,신경인,Lee Shin Kyung,Kim Seong Hun,Lee Kyung Ju,Shin Kyung In 한국섬유공학회 2005 한국섬유공학회지 Vol.42 No.6
Recycled ultrafine fibrous nonwoven consisted of low melting polyester fiber and ultrafine fibrous scrap in the proportion of $20wt\%\;to\;80wt\%$. The recycled ultrafine fibrous nonwoven was treated with a solution of an antistatic agent(cationic, anionic, and nonionic) and flame proofing agents by pad-dry method. Antistatic property, flame proofing property, water and oil absorption properties of the recycled ultrafine fibrous nonwovens were analyzed. To determine the antistatic property, electrostatic charge, half-decay time and surface electric resistance were measured. The recycled ultrafine fibrous nonwoven, particularly treated with nonionic antistatic agents, showed excellent antistatic property, For the flame proofing property, as percent add-on of flame proofing agents increased, the distances of carbonization of recycled ultrafine fibrous nonwovens decreased. Point bonded nonwoven with 15 mm interval bonding exhibited water and oil absorption of $447\%$ and of $430\%$ respectively.
Inconel 740H 니켈기 초내열합금과 TP316H 스테인리스강의 이종금속 SMA 용접부의 미세조직과 크리프 파단 특성
신경용(Kyeong-Yong Shin),이지원(Ji-Won Lee),한정민(Jung-Min Han),이경운(Kyong-Woon Lee),공병욱(Byeong-Ook Kong),홍현욱(Hyun-Uk Hong) 대한용접·접합학회 2016 대한용접·접합학회지 Vol.34 No.5
The microstructures and the creep rupture properties of dissimilar welds between the Ni-based superalloy Inconel 740H and the non-stabilized austenitic stainless steel TP316H have been characterized. The welds were produced by shielded metal arc (SMA) welding process with the AWS A5.11 Class ENiCrFe-3 filler metal, commonly known as Inconel 182 superalloy. Postweld heat treatment at 760 ℃ for 4 hours was conducted to form γ΄ strengthener in Inconel 740H. The austenitic weld metal produced by Inconel 182 had a dendritic microstructure, and grew epitaxially from the both sides of Inconel 740H and TP316H base metals. Since both Inconel 740H and TP316H did not undergo any solid-state transformation during welding process, there were no heat-affected-zone (HAZ) sub-regions and the coarsoned grains near the weld interface were limited to a narrow region. The hardness of Inconel 182 weld metal was ~220 Hv. The gradual hardness decrease was detected at HAZ of TP316H, and the TP316H base metal displayed the lowest hardness value (~180 Hv) whilst the Inconel 740H showed the highest hardness value (~400 Hv). Fracture after creep occurred at the center of weld metal, regardless of creep condition. It was found that during creep the cracks initiated and propagated along interdendritic regions and grain boundaries at which Laves particles enriched in Nb, Si and Cr were present. The appropriate design of weld metal was discussed to suppress the creep-induced cracking of the present dissimilar weld.
반응표면분석에 의한 홍차로부터 기능성 성분의 침출조건 모니터링
신경아(Gyoungah Shin),이고은(Goeun Lee),오영환(Younghwan Oh),노정은(Jungeun Noh),윤성란(Sung-Ran Yoon),이정은(Jeongeun Lee),김귀란(Guiran Kim),전은주(Eunju Jeon),정헌식(Hun-Sik Chung),김정숙(Jeong-Sook Kim),권중호(Joong-Ho Kwon) 한국식품영양과학회 2008 한국식품영양과학회지 Vol.37 No.1
반응표면분석법을 통하여 홍차의 침출 온도와 시간에 따른 침출물의 기능성 성분과 항산화성을 모니터링하고 최적침출조건을 예측하였다. 수용성 성분의 침출수율, 환원당, 총 페놀, 총 플라보노이드 함량 등은 침출온도가 높아지고 침출시간이 길어짐에 따라 증가되는 경향을 보였고, 78.28~87.08℃와 3.97~4.27분으로 침출할 경우 최대값을 얻을 수 있었다. 비타민 C는 침출온도가 높거나 낮고 침출시간이 길거나 짧을 경우에 감소하였으며 61.29℃와 2.68분에서 가장 높았다. 전자공여능은 침출온도가 높거나 낮고 침출시간이 길어짐에 따라 감소하였고 68.30℃와 0.54분에서 최대값을 나타내었다. 이로써 홍차 티백의 기능성 관련 성분을 고려한 최적 침출조건은 침출온도 63~79℃와 침출시간 1.5~2.1분으로 예측되었다. This study was conducted to predict optimum leaching conditions for functional components of black tea. Two variables were used to determine the optimum leaching temperature and leaching time with a five-level central composite design and response surface methodology. Soluble solid, reducing sugar, total phenolics, and total flavonoid contents increased as leaching temperature and time increased. The ranges of maximum leaching conditions for these components were 78.28~87.08℃ and 3.97~4.27 min. Vitamin C level was maximal at 61.29℃ and 2.68 min. Electron donating ability showed the highest values at 68.30℃ and 0.54 min. Based upon the superimposed results, it was predicted that the optimal ranges of leaching conditions for some functional components from black tea were 63~79℃ for 1.5~2.1 min.