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      • Poster Session : PS 0831 ; Upper GI Tract : Clinical Factors to Predict Angiographically Detectable Non-Variceal Upper Gastrointestinal Bleeding in Patients Refractory to Endoscopic Treatment

        ( Tae Hwan Ha ),( Tae Hoon Oh ),( Sung In Yu ),( Min Kim ),( Jong Wook Kim ),( Won Ki Bae ),( Jae Hyung Kim ),( Seung Suk Baek ),( Mi Jin Ryu ),( Ye Na Choi ),( Ji Young Park ),( Eileen L Yoon ),( Tae 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

        Background: Non-variceal upper GI bleeding (NVUGIB) is a common medical problem that has signifi cant association with morbidity and mortality. Angiographic detection and subsequent transarterial embolization (TAE) is a primary treatment option when medical and endoscopic treatments fail. We investigated clinical factors that could affect the success of the angiographic detection and prognosis after TAE in patients with NVUGIB refractory to endoscopic therapy. Methods: A retrospective analysis of the clinical data was done in patients with failed endoscopic treatment who underwent angiography for the treatment of acute NVUGIB between May 2002 and May 2013. Patients were divided into detection or non-detection groups according to the presence of bleeding stigmata in angiographic fi nding. Rebleeding defi ned as subsequent bleeding event within 7 days and mortality within 30days were analyzed as outcome parameters after TAE following detection in angiography. Results: A total 45 patients 37 (male, mean age, 65.9±14.9 years) were analyzed and classifi ed as a detection group (n=25, 55.5%) and non-detection group (n=20, 44.6%). Peptic ulcers were the most common cause of refractory NVUGIB. Larger transfusion amount (5.7±3.9 unit vs. 3.5±2.8 unit; P=0.03), prolonged aPTT level (34.2±17.3 sec vs. 21.8±13.8 sec; P=0.01) and short time interval between last endoscopy and angiography (17.5±25.9 hours vs. 34.3±59.5 hours; P=0.04) were found to be signifi cant factors for predicting angiographic detection. TAE was performed in all patients detected in angiography. Rebleeding (44%) was significantly associated with higher Rockall score (8.3±1.5 vs. 6.6±2.4; P=0.046) and mortality (12%) was signifi cantly associated with higher Rockall score (9.3±0.6 vs. 7.1±2.2; P=0.002) and higher level of BUN (55.3±47.4 vs. 27.6±17.4; P=0.01). Conclusions: Clinical characteristics associated with angiographic detection in patients with NVUGIB refractory to endoscopic therapy were severe bleeding, bleeding tendency and early angiographic intervention. The Rockall score is useful parameter for predicting rebleeding and mortality after TAE.

      • KCI등재

        傷寒論에 대한 精神醫學的 硏究

        文相泰,辛容玹,具炳壽 대한한방신경정신과학회 2000 동의신경정신과학회지 Vol.11 No.1

        This study was aimed to get the course which is caused by Neuropsychiatric symptoms in Sang-Han. Therefore this study is based on 『Euhak-Ipmun. Sang-Han』(『醫學入門.傷寒』) classfied mainly by symptoms. The results were summerized as follows: 1. Neuropsychiatric symptoms in 『Euhak-Ipmun. Sang-Han』(『醫學入門. 傷寒』) are explained as Pal-Gang(八綱), which shows those are settled down to a systematic oriental medical theory. 2. Pal-Bup (八法) used in the cure of symptomatische psychose in 『Euhak-Ipmun. Sang-Han』(『醫學入門. 傷寒』), which is intended to boost the effect of cure, choosing the respondent cure method about various causes. 3. Pal-Gang(八綱) and Pal-Bup(八法) in『Euhak-Ipmun. Sang-Han』(『醫學入門·傷寒』) are improved by Lee-Chun(李 ) who added Jang-gi(張機)'s Sang Han theory and new medical thought in the ages of Geum. Won. 4. Lee-Chun(李 ) believed that Neuropsychiatric symptoms which appeared in Sang Hang is caused by the "Unbalance(不平)". So he wanted to reach harmony of "Jeong(精), QI(氣), Shin(神), Hyul(血)" after improving the status of "Unbalance(『不平』)" toward the status of "Balance(平)".

      • 북한소설 『군바바』에 나타난 ‘민족의식’

        박태상(Park Tae-Sang) 동북아시아문화학회 2007 동북아시아문화학회 국제학술대회 발표자료집 Vol.- No.-

        『Gunbaba』, written by Kim Hye-sung, a rising writer of North Korea, is a historical long-novel which is remarkably highlighting the characteristic of the independence and nationality of our people by standing a Josun military officer as a hero with a historical background of Josun which was dotted with a long spell of national ordeal such like the residence of the Japanese supervising Agent in 1906, the dismission of the Korean army in 1907, the Special Envoys of Hague, and the deposition of King Gojong. 『Gunbaba』 has a framwork of latitude of longitude of supporting characters such like Jock-song, Kwon Ki-hong, Kim Hui-sook, Yang Seol-hee, and Lee around a hero, Nam Sang-duk, a main character. This work is, so to speak, based on ' the First People of Josun', the ideology of 'nationalism', which was stressed by Kim Jeong-il, the chairman of the defence committee after he came to the force. This ideology was functioned as the driving force that caused the writing tendency such like the realistic works of the historical theme that were in great vogue in the North Korean society. Especially in one point, this work gives fun to the readers that it focuses on the nationalism by describing the various types in the decadent stage to the Japanese colonialism of the various kinds of characters, who had collaborated with the Japanese Imperialists in many ways, such as Kim Tae-jin, Lee Wan-yong, and Park Young-hyo of the day it shows. First of all, Nam Sang-duk, the hero, is actually described as a person with many troubles in the work. Nam Sang-duk, who graduated first from the Senior Military Academy and got appointed to a platoon commander of the Josun army, was continually playing a role as a trouble-maker. Without regard to his soldiership, he is engaged into some trouble between 'Cheongcheon Pub' which is operated by Kwon Soon-sil, his friend Kwon Ki-hong's elder sister and 'Sakura Coffee Shop' which is operated by a Japanese, Yoshiko and he is behind bars and then is released. In fact, it seems that the writer has intention in his mind that Nam Sang-duk, his hero, kept his foot in the trouble to make him <a sensible person>. Besides, the hero, Nam Sang-duk, deeply impressed by the Drive for National Debt Compensation of Yang Ki-tak, organized the Danyeonhoe in his Josun army and raised money to participate in the Drive for National Debt Compensation. Moreover, going on his way, he found a boy dying hit by the new train which first showed in Seoul and hurry to the doctor's office carrying him on his back and gave some portion of the fund for the Drive. After all, these activities of him seem to include the writer's purpose not only to show the patriotism of Nam Sang-duk but also to reveal the falseness and the oppression of the Japanese Militarism through the victim by the train, which is propagandized as the symbol of modernization and the point of the modem civilization which is propagandized by the Japanese Imperialism. Another one, Park Sung-hwan, the battalion commander, heard the news of the painful outcries of Yang Sung-hwan who had known the reality of the dismission of Josun army ordered by the Emperor' false will being forced by Lideungbakmun and his pro-Japanese Lee Wan-young, killed himself by a pistol. Nam Sang-duk, the hero, hearing the gun-sound and witnessing the scene of the suicide, dashed to the common soldiers, stimulated them, and resisted in arms. Nam Sang-duk, determined to die and with a bundle of explosive, rushed to the city gate where the Japanese machine-gun position and the fortress were lined up with and died a heroic death raising the morale of the rebel forces. These gallantry and intrepidity come to the victory in the end and they transfer to the esthetical category of 'heroism' and 'nobility' which the North Korean esthetics categorized. In 『Gunbaba』, there appears a peculiar assistant, Park jwa-su, who is set up a very

      • KCI등재

        Artificial Neural Network for Modeling the Tensile Properties of Ferrite-Pearlite Steels: Relative Importance of Alloying Elements and Microstructural Factors

        Tae‑Woon Hong,Sang‑In Lee,Jae‑Hyeok Shim,Myoung‑Gyu Lee,Joonho Lee,Byoungchul Hwang 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.10

        An artificial neural network (ANN) model was developed to predict the tensile properties as a function of alloying elementand microstructural factor of ferrite-pearlite steels. The input parameters of the model were composed of alloying elements(Mn, Si, Al, Nb, Ti, and V) and microstructural factors (pearlite fraction, ferrite grain size, interlamellar spacing, and cementitethickness), while the output parameters of the model were yield strength and tensile strength. Although the ferrite-pearlitesteels have complex relationships among the alloying elements, microstructural factors, and tensile properties, the ANNmodel predictions were found to be more accurate with experimental results than the existing equation model. In the presentstudy the individual effect of input parameters on the tensile properties was quantitatively estimated with the help of theaverage index of the relative importance for alloying elements as well as microstructural factors. The ANN model attemptedfrom the metallurgical points of view is expected to be useful for designing new steels having required mechanical properties.

      • N-벤조일-이미다졸 유도체의 가수분해반응

        성대동,엄태섭,이종팔,박유미,박현석 東亞大學校 1992 東亞論叢 Vol.29 No.1

        The pseudo first order rates for hydrolyses of N-benzoyl-(2,4,5-triphenyl)-imidazole and N-benzoyl-(4,5-diphenyl)-imidazole have been measured by means of spectrometry in over all pH range at 30˚C with the ionic strength of 0.5M KC1. In the case of N-benzoyl-(2,4,5-triphenyl)-imidazole, the general acid catalytic reaction was not observed, while the general base catalytic reaction showed in near the range of pH=7. In the case of N-benzoyl-(4,5-diphenyl)-imidazole, the general acid and base catalytic reaction showed at the regions of less than pH=4 and more than pH=10. The rate constants for pH independent reaction of N-benzoyl-(2,4,5,-triphenyl)-imidazole were shown a little bit faster than those of the corresponding to N-benzoyl-(4,5-diphenyl)-imidazole. The reaction mechanism of pH independent reaction was interpreted by means of thermodynamic parameters, and the isotope effect. The magni-tude of ΔH??, ΔS??, ??/?? values indicated that the bond breaking had been progressed more than bond formation in the transition state.

      • KCI등재후보

        (Pb,La)TiO_3/LiTaO_3/(Pb,La)TiO_3 다층 강유전 박막을 이용한 초전형 적외선 센서

        성세경,이두현,최혁환,이명교,권태하 한국센서학회 2002 센서학회지 Vol.11 No.4

        초전형 적외선 센서를 제작하기 위하여 rf 마그네트론 스퍼터링법으로 (Pb,La)TiO_3(PLT)/LiTaO_3(LTO)/PLT 강유전 박막을 증착한 후 급속 열처리하여 열처리 온도와 시간에 따른 결정성을 조사하였다. 강유전 박막의 C축 배향도에 따른 비유전율 및 유전손실을 측정하고 C축 배향도가 가장 큰 강유전 박막으로 제작된 센서에 대해 초전계수를 측정하여 센서의 전압응답에 대한 성능지수(F_V)와 감도에 대한 성능지수(F_D)를 구하였다. 얻어진 F_V, F_D는 각각 6.15×10 exp (-10) C · cm/J, 1.98×10 exp (-8) C · cm/J였다. For fabrication of the pyroelectric IR sensor (Pb,La)TiO_3(PLT)/LiTaO_3(LTO)/PLT ferroelectric thin films was deposited by rf magnetron sputtering followed by rapid thermal annealing and the crystallinity as a function of annealing temperature and time was investigated. Permittivity and dielectric loss factor of ferroelectric thin films as a function of c-axis preffered orientation was measured. Also pyroelectric coefficient of ferroelectric thin films with largest c-axis preffered orientation was measured and obtain figure of merit of voltage response(F_V) and detectivity(F_D). In this case F_V, F_D was 5.63×10 exp (-10) C · cm/J, 1.98×10 exp (-8) C · cm/J, respectively.

      • KCI등재
      • 자바를 이용한 기하 알고리즘의 가시화에 관한 연구

        성창규,양태천 慶星大學校 1998 論文集 Vol.19 No.1

        The visualization of geometric algorithms use graphics and motion to explain geometric algorithm ideas and concepts. Geometric algorithms can be highly complex, hard to implement and debug and difficult to grasps. The visual nature of geometry makes animations extremely helpful. In the paper, we show that the visual realization of the Voronoi diagram and Convex hull using Plane sweep technique. This Plane sweep technique implemented by Java applet and can be shown by WWW browsers in internet.

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