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Fe-Mn 합금의 방진특성 및 변태특성에 미치는 냉간가공의 영향
최종술,백승한,지광구,신명철,전선우 대한금속재료학회(대한금속학회) 1999 대한금속·재료학회지 Vol.37 No.7
The objective of this study is to investigate the effect of deformation degree on damping capacity, transformation behavior and mechanical property in Fe-16%Mn-2%Cr and Fe-22%Mn alloys. The Fe-16%Mn2%Cr and Fe-22%Mn alloys undergo γ→ε→α' and γ→ε martensitic transformation by deformation, respectively. In the two alloys, the increase in degree of cold rolling cause an increase of reverse transformation temperatures of ε→γ because the dislocations introduced by cold rolling hinder the movement of γ→ε boundaries. The decrease in mobility of γ→ε boundary is responsible for a rise in driving force, raising the reverse transformation temperature. At low strain amplitudes of 1×10^(-4)∼4×10^(-4), damping capacity increases with increasing rolling degree up to 5-10%. At a high strain amplitude, the 0% rolled alloy exhibits good damping property. The results indicate that area of γ→εboundaries at a low strain amplitude is more dominant than their mobility. With a higher strain amplitude, however, mobility becomes a major factor for damping capacity.
활동성 크론병에서 초기 스테로이드 치료 반응에 따른 임상적, 생화학적, 병리학적 인자들에 관한 연구
김영호,장재권,김지은,최규완,박동일,도재혁,백승운,고광철,이풍렬,이종철,현재근,안병훈,김재준,류민규 대한소화기내시경학회 2001 Clinical Endoscopy Vol.22 No.6
Background/Aims: The predictory factors of the response to initial steroid therapy in active Crohn's disease has been controversial in numerous literature reviews. We evaluated any predictory faetor of the response to initial steroid therapy in active Crohn`s disease patients, Methods: The medical records of 32 patients with active Crohn`s disease who clinically responded to oral steroid therapy were retrospectively reviewed. The steroid responsive group was defined as the one showing maintenance of response for more than one month from steroid withdrawal and the steroid dependent group as the one showing relapse or exacerbation during steroid tapering or within 30 days from steroid withdrawal. The clinical, biochemical, and pathologic factors were evaluated. Results: There were 22 male and 10 female patients. The mean age was 28.9 years. The number of steroid responsive and dependent group was 22 (68.8%) and 10 (31.2%), respectively. There were no significant differences between these two groups in age, sex, time to diagnosis, perianal lesion, extent of disease, extraintestinal manifestations, presence of granuloma, presenting features, hemoglobin, ESR, and CRP, except serum albumin level. Conclusions: Serum albumin level was significantly lower in steroid dependent group than steroid responsive group, reflecting severe inflammation in steroid dependent group.
A Case Study on the Fire of Factory Buildings in Korea
Jee,Nam-Yong,Lee,Kyung-Ku,Suh,Chee-Ho 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-
According to the fire statistics of the Ministry of Home Affairs, the fire ratio in factories, work places and warehouses shows 21.5% among total fire of buildings except the fire on cars or other fires. Especially, the buildings like factories and warehouses, which have a lot of ignitable sources and thus always have a strong possibility of fire, are needed to have well planned strategy in terms of life safety and property protection. In this respect, the present paper analyses the existing fire cases in factories, finds out the fire properties of factory buildings, and evaluates the codes concerning fire resistance and fire severity.
Investigating Directives in Korean: Advice and Suggestion
Jee-Won Hahn 국제언어인문학회 2010 인문언어 Vol.12 No.2
Investigating Directives in Korean: Advice and Suggestion Jee-Won Hahn (Kyung-Hee University) Even though it is based on a small number of responses, this study provides some interesting findings and implications for two directive speech acts. Advice and suggestion are examined from three aspects: conceptual, situational, and linguistic. These speech acts are shown to present similarities and differences as well. From a conceptual aspect, a set of semantic features are identified to distinguish advice and suggestion. The situational dimension offers the insight into the speech act theory (Searle and Venderveken 1985) to understand the condition for determining directive speech acts. Finally, linguistic realizations present various strategies employed for performing an act. Compared to advice, due to weakening illocutionary force, suggestion tends to be simplified in types of linguistic strategies. In addition, this study argues that a sentence-based approach needs to be complemented by a variety of pragmatic devices when it comes to the English-learning environment.
The Reactions of O(3P) Atom with Halomethanes:Discharge Flow-Chemiluminescence Imaging Method
Jee-YonLee,Hee-SooYoo 대한화학회 2002 Bulletin of the Korean Chemical Society Vol.23 No.2
reaction by oxygen atom from bromine orchlorine substituted methanes are known to be 5 orders ofmagnitude slower than reaction 6.6 The rate of reaction 7 inthis work is much faster than that of CH3Br + O.5,6 The OBror OH formation pathway in the reaction 7 is not feasible atroom temperature since the pathways are estimated to behighly endothermic by comparing the reaction CF2HBr +- kw kbia + ( )294 Bull. Korean Chem. Soc. 2002, Vol. 23, No. 2 Jee-Yon Lee and Hee-So YooO(1D).12 No kinetic and thermodynamic data are availablefor CHCl2Br and its reaction with O(3P). The thermo-dynamically possible pathways which enhance the overallreaction, not accounting the spin conservation, could beproposed by comparing the CF2HBr + O(1D) as reactions 7a-7f:CHCl2Br + O(3P) CCl2O + HBr (7a)CHCl2Br + O(3P) CCl2O + H + Br (7b)CHCl2Br + O(3P) CHClO + BrCl (7c)CHCl2Br + O(3P) CHClO + Br + Cl (7d)CHCl2Br + O(3P) CHCl2O + Br (7e)CHCl2Br + O(3P) CO + HCl + BrCl (7f)Acknowledgment. This work was supported by grantnumber BSRI-01-5 from Basic Science Research Institute,Chungbuk National University.
Gesture, Gaze, and Bodily Cues in Mandarin Conversation: Two Case Studies
Lee,Jee-won 한국사회언어학회 2012 사회언어학 Vol.20 No.1
Lee, Jee-won. 2012. Gesture, Gaze, and Bodily Cues in Mandarin Conversation: Two Case Studies. The Sociolinguistic Journal of Korea 20(1). pp. 213-234. This study uses discourse analysis to illustrate some ways that non-verbal actions such as gaze, facial expression, and gesture work to contextualize the speech delivered in conversation. These bodily cues also enable participants to organize interactions as collaborative creations of meaning rather than simply a turn-by-turn exchange of speech. This study uses two excerpts from Mandarin Chinese conversations to illustrate how non-verbal cues help speakers and recipients to engage in collaborative action with one another. Speakers give recipients information about their stances vis-à-vis the speech they produce, and recipients use this information to manage their reactions to the speech they hear. Non-verbal actions also allow both parties to mutually regulate the flow of conversation. In both examples, it becomes clear that gaze, facial expression, and gesture are important elements of spoken interaction and that conversation as a whole should be understood as a contextual web of meaning that includes speech, body language, and overall social interaction.
The diagnosis of coronoid impingement using computed tomography
Baik, Jee-Seon,Huh, Kyung-Hoe,Park, Kwan-Soo,Park, Moo-Soon,Heo, Min-Suk,Lee, Sam-Sun,,Choi, Soon-Chul 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.4
Coronoid impingement can cause limitation of mouth opening. In many cases, it appears to be related to the coronoid hyperplasia. We present a case of mouth opening limitation caused by coronoid impingement on the posterior surface of the zygomatic bone without coronoid hyperplasia. The bony changes in coronoid and zygoma including surface irregularity and discontinuity of the cortex and sclerotic change of inner medullary space were noted on computed tomography (CT) scans in different level of axial planes. Through another CT scans in open mouth position could demonstrate that those bony changes were caused by the contact of both surfaces against each other. In case coronoid impingement is suspected of the many possible causes, the open mouth CT scans will be needed to reveal the direct impingement of coronoid on zygoma even without coronoid hyperplasia.
이현지(Lee, Hyun-jee) 한국어문학회 2016 語文學 Vol.0 No.132
Royal families were supposed to live idle lives, but the life of Prince Inpyeong was an exceptional case. Prince Inpyeong"s role has been evaluated as the absolute peace in the King Hyojong era. To solve sensitive diplomatic issues between Choson-Qing smoothly, Inpyeong took the critical role of an envoy. He took on almost all the difficult tasks in diplomacy. All his diplomatic journeys and achievements had the source in the close loving relationship with the king. The prince played a crucial role to cause the fall of Ming Dynasty and watched Qing Dynasty during the journeys. He provided information of the internal affairs of Qing Dynasty to King Hyojong. It was a significant source to make Hyojmg’s Plan to Conquer the North possible. His poetry was mainly to communicate with King Hyojong. The poems seek after a hero, enjoy the feeling of freedom elegantly, show sentiment of friendship and loyalty for his king and brother, Hyojong.