투표제도의 비교 연구

黃秀益 서울대학교 사회과학연구소 1995 社會科學과政策硏究 Vol.17 No.1

사상체질에 따른 류마티스 관절염 환자 대조군 연구

김수영,이상훈,이현종,이두익,이윤호,이재동 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2004 東西醫學硏究所 論文集 Vol.2004 No.-

Objective: The purpose of this study is to examine the susceptibility of the patients diagnosed by rheumatoid arthritis to Sasang Typology. Methods: This study are planned to detect the susceptibility of the patients diagnosed by rheumatoid arthritis to Sasang Typology. In order to analyze the susceptibility of rheumatoid arthritis to Sasang Typology, 147 rheumatoid arthritis patients and 147 matched controls are assessed with QSCCⅡ question for Sasang Typology. Then the frequencies of patients by Sasang constitution are compared to those of control, which are statistically analyzed and adjusted by age, sex, smoking status, alchol intake, BMI, and economic status. Results: The demographic characteristics of the study population are similar in sex and age distribution, smoking status, and alcohol intake(p>0.05). 147 rheumatoid arthritis patients and 147 matched controls are assessed with QSCCⅡ question for Sasang constitution. Soeumin is die most susceptible to rheumatoid arthritis compared to Taeumin or Soyangin(Crude OR [95% Cl] ; 3.82 [2.19-6.64]). lt is statistically significant after adjusting age, sex, smoking status, alcohol intake, BMI, and economic status(Adjusted OR [95% Cl] ; 3.01 [1.47-6.15]). Conclusions: lt is suggested that the specific Sasang Typology associated with rheumatoid arthritis is used as its susceptibility marker and further as basic date to prevent the risk factors for rheumatoid arthritis.

유도초음파를 이용한 2.25Cr-1Mo재의 열화도 평가

박익근,박은수,이상용,권숙인,조윤호,윤승현 한국비파괴검사학회 2001 한국비파괴검사학회지 Vol.21 No.4

고온에서 장시간 사용으로 인하여 발생되는 경년열화 평가에는 파괴적인 방법이 신뢰성이 높지만 시험편 채취의 어려움이 있다. 그러므로 비파괴적인 방법에 의한 열화도 평가가 바람직하다. 본 연구에서는 2.25Cr-1Mo강에 대하여 장시간 등온열처리로 모의 열화시험편을 제작하여 고온설비부재에서 발생되는 탄화물의 석출 및 조대화, 불순물의 입계편석 등 금속학적 미세조직을 관찰하고, 미세조직의 변화와 유도 초음파의 전파특성과의 상관관계를 규명하고, 파괴시험치와 그 결과를 비교하여 초음파 비파괴평가에 의한 고온부재의 열화도 평가의 가능성을 실험적으로 검증하고자 한다. The destructive method is reliable and widely used for the estimation of material degradation but, it have time-consuming and a great difficulty in preparing specimens from in-service industrial facilities. Therefore, the etimation of degraded structural materials by nondestructive evaluation is strongly desired. In this paper, the use of guided wave was suggested for the evaluation of thermally damaged 2.25Cr-1Mo steel as an alternative way to compensate for limitations of fracture tests. The observation of microstructure variations of the material including carbide precipitation increase and spheroidization near gain boundary was conducted and the correlation with the guided wave features such as energy loss ratio and group velocity changes was investigated. Through this study the feasibility of ultrasonic guided wave evaluation for thermally damaged materials was explored.

초음파현미경에서 V(z)곡선의 시뮬레이션과 열화평가에의 응용

조동수,박익근,임재생,안형근,심우식,김홍준 한국비파괴검사학회 2004 학술대회 논문집 Vol.- No.-

韓國의 朱子學 受容과 그 展開에 關한 論究 : 主로 麗末鮮初를 中心으로 Mainly the last era of Koryo and the first one of Chosun

金益洙 건국대학교 1981 論文集 Vol.13 No.1

Neo-Confucianism can be called "physical science" or "ethics". This eventually means the philosophyical system of confucianism which was commenced by confucius. Infact, Neo-Confucianism suggested the theory of Neo-Confucianism to that of confucius and Mencius. The major reason for the Neo-Confucianism in "Song" of China lies in the following two factors; one is external element of political and social causes and the other internal element of ideological causes. The formation of Neo-Confucianism in the era of "Song" was much influenced by Buddhism and Taoism and yet was integrated the establishment of independence in the sense of Confucianism. When we take a close look at the process of Neo·Confucianism formation in the era of "Song", "Ch'i; material force" theory by such individuals as "Chou Lie Chi, and Chang Heng Ch'u" is first and "Li, principle by Ch'eng I Ch'uan" and "Chu Hsi" (1130-1200) came into being next, and "Hsin Hsu¨en" by "Lu Hsiang Shan" and Yang Tzu-Hu was followed. This study in going to take a good look at the formation and development of Neo-Confucianism in Korea. (1) The formation of Neo-Confucianism in the later era of Koryo Dynasty. Since the King "Ch'ungnyoˇl"(the 25th King of Koryo 1275-1308), Neo-Confucianism was studied and understood firstly by "An Hyang" (1243-1306) and then by "Baek Yi Chung", "Wau Tak", "Kwuen Boo", Lee Je Hyun", "Yi Saek" and "Chong Mong Chu". The characteristics of confucianism of Koryo era can be seen in the parley among confucianism, Buddhism and Taoism, but after that the Neo-Confucanism was accepted and recongnized and in the mean time Taoism and Buddhism were being rejected. Shortly after this, new learning began coming up with influence by Taoism of "North Song" and Chutzuism (Chinese Dualistic Philosophy) of "South Song". There were two classes of Confucianist at the later era of Koryo Dynasty; one who studied in Peking of "Yu¨an" and the other who studied in Nanking of "Ming". And those who studied in "Yu¨an" got the knowledge both on Neo·Confucianism and literal sentences, and on the other hand rising scholars such as "Chong Mong Chu" (1337-1392), "Chong To Chien" (1342-1398) and Kwon Kuen (1352-1409) firstly formed Neo-Confucianism in our country. Especially, "Chong Mong Chu" not only occupied a form position in Korean history on Confucianism but also he was called as the Father of Korean Neo-Confucanism and "Kil Jae" (1352-1419) is renouned for the fidelity to his principle. (2) The formation and development of Neo-Confucianism in the early era of "Yi Dynasty". After Koryo Dynasty came to an end, "Yi Dynasty" began to develop the conversion of ideology; admiring for Confucianism and rejecting Buddhism. Consequently, the Confucianists of "Yi Dynasty" could set up new type of learning based on faithful, rational and moral thoughts for the formation of Neo-Confucianism. But in Korea Neo-Confucianism and Taoism are distinguished from each other. The learning and spirits of "Chong Mong Chu" at the later era of Koryo Dynasty were handed down developing to "Kil Jae", to "Kim Sook Cha" (1398-1456), to his son "Kim Kuing Pil" (1454-1504), to "Chong Yeo Chang" (1450-1504), and handed down from "Kim Kuing Pil" to "Cho Kwang Cho" (1482-1519) this sort of scholastic mantle may be regarded as a real vein of Korean Neo-Confucianism.

사회현상의 미시적 기반

황수익 서울대학교 사회과학연구소 1994 社會科學과政策硏究 Vol.16 No.3

초음파현미경의 고주파 초음파 탐촉자를 이용한 코발트기 초내열합금강의 열화평가

박익근,조동수,김용권,임재생,김정석 한국비파괴검사학회 2004 한국비파괴검사학회지 Vol.24 No.5

V(z)곡선법을 이용한 코발트기 초내열합금강의 열화도 평가 유용성 유무를 고주파 초음파 탐촉자를 이용하여 실험적으로 검증 하였다. 코발트기 초내열 합금이 고온에서 장시간 노출되었을 때 일어나는 미세조직의 변화를 모사하기 위해서 인공열화를 실시하였다. 여로하에 미치는 초음파 음속의 영향을 고찰하고자 10MHz를 이용하여 펄스-에코법으로 종파의 음속을 측정하고 200MHz를 사용하여 V(z)곡선법으로 누설턴성표면파의 음속을 측정하였다. 두 초음파의 음속은 열화시간에 따라서 감소 하였다. 더욱이, 저주파수 종파의 음속변화는 거의 없었지만, 고주파수 누설탄성표면파의 음속변화는 열화시간에 따라서 최대 4.7%의 변화를 나타내었다. 열화에 따른 강도의 변화와 누설탄성표면파의 음속 변화는 양호한 상관관계를 나타내었다. 따라서 열화도 평가에 고주파 탐촉자를 이용한 초음파 현미경의 V(z)곡선법이 유용함을 알 수 있었다. The feasibility of V(z) curve method of scanning acoustic microscope using high frequency transducer was experimentally studied for assessment of the thermal degradation in Co-based superalloy. Thermal degradation was performed to simulate the microstructural changes in Co-based superalloy arising trom long term exposure at high temperature. Longitudinal wave velocity measured by pulse echo method using 10MHz transducer and leaky surface acoustic wave (LSAW) velocity measured by V(z) curve method using 200MHz transducer were measured to investigate the effect on thermal degradation. Ultrasonic velocity decreased as the aging time increased in both ultrasonic waves. Moreover, the low frequency longitudinal wave velocity decreased a little. Otherwise, the high frequency LSAW velocity drastically decreased up to a maximum of 4.7% at the aging time of 4,000hours. A good correlation was found between LSAW and Vickers hardness. Consequently, V(z) curve method of SAM using high frequency transducer could be a potential tool for assessing thermal degradation.

초음파현미경에서 V(z)곡선을 이용한 세라믹/금속 접합면계면의 비파괴 평가

조동수,박익근,김용권 한국비파괴검사학회 2004 학술대회 논문집 Vol.- No.-

원자력발전소 PSI/ISI 데이터 관리를 위한 지능형 데이터베이스 프로그램 개발(제2보)

박은수,박익근,엄병국,이종포,한치현 한국비파괴검사학회 2000 한국비파괴검사학회지 Vol.20 No.3

제 1보에서 Windows 환경 하에서 PSI/ISI 데이터의 효율적 관리 및 다원적평가와 분석이 가능한 고리 원전 PSI/ISI 데이터베이스 구축과 프로그램 개발(IDPIN)에 대해 소개하였다. 제 2보에서는 월성 원자력발전소 PSI/ISI 자료 관리를 위한 지능형 데이터베이스 프로그램(WS-IDPIN)을 개발하였다. 이 프로그램에는 월성 원전 PSI/ISI 관련 자료 분석 기능, PSI/ISI UT 검사 보고서 양식의 표준화와 전산 시스템화, PSI/ISI 비파괴검사 결과의 통계적 신뢰도 평가 프로그램(depth and length sizing performance 등) 등을 개발하여 원전 PSI/ISI 데이터 관리 전문가시스템(expert system)화에 한 단계 접근하였다. In a previous paper, we have discussed the intelligent Windows 95-based data management program(IDPIN) which was developed for (effective) and efficient management of large amounts of pre-/in-service inspection(PSI/ISI) data of Kori nuclear power plants. The IDPIN program enables the prompt extraction of previously conducted PSI/ISI conditions and results so that the time-consuming data management, painstaking data processing and analysis of the past are avoided. In this study, the intelligent Windows based data management program(WS-IDPIN) has been developed as an effective data management of PSI/ISI data for the Wolsong nuclear power plants. The WS-IDPIN program includes the modules of comprehensive management and analysis of PSI/ISI results, statistical reliability assessment program of PSI/ISI results(depth and length sizing performance etc), standardization of UT report form and computerization of UT results. In addition, the program can be further developed as a unique PSI/ISI data management expert system which can be part of the PSI/ISI total support system for Korean nuclear power plants.

Olfactory neuroblastoma 증례보고

박익수,이정근,노양호,김동우,김우형,이희철 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.2

Olfactory neuroblastoma is an uncommon malignant tumor(just over 300 cases have been reported in the medical literature by 1996)arising within the nasal cavity. This tumor has a neuroectodermal cell origin and is believed to specifically arise from the olfactory epithelium. The tumor was ftrst decribed in the French medical literayure by Berger and associates in 1924 by the name esthesioneuropitheliome olfactif. The english version of this term is esthesioneuroblastoma, and current medical literture uses this name interchangeably with olfactory neuroblastoma. We experienced a case of olfactory neuroblastoma in the mxillary sinus. We treated this patient with tumor resection, chmotherapy and radiotherapy. And now, the patient has been following up for 2years 6month, but olfactory neuroblastoma is very rare. SO we report this case with a review of literature.