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이형섭,김장렬,윤석철,이상윤 대한방사선 방어학회 1994 방사선방어학회지 Vol.19 No.2
최근, 개인방사선피폭선량평가에 관한 기술기준이 과학기술처에 의해 고시됨에 따라 국내에서도 개인선량계를 이용한 체외피폭선량평가결과의 신뢰성 문제가 크게 대두되고 있다. 한국원자력연구소에서는 이러한 구내의 상황을 인식하고 자체적인 신뢰성 확보를 위해 미국의 Oak Ridge국립연구소의 주관하에 개인피폭선량의 평가에 관한 국제상호비교검증시험(Personnel Dosimetry Intercomparison Study ; PDIS) 을 수행하였다. 비교 검증시험에는 한국원자력연구소에서 사용하고 있는 Teledyne PB-3 열형광선량계가 사용되였으며 선량게산 알고리즘은 Teledyne PB-3 version1.5-1989를 사용하였다. 본 연구에서는 지금까지 실시된 PDIS의 결과를 요약하고 현재 PB-3 시스템의 개인선량평가성능에 대해 고찰하였으며, 선량평가절차에 대한 문제점 도출을 통하여 직업적 방사선피폭선량 평가능력의 향상을 위한 방안을 제시하였다. Recently, the Ministry of Science and Technology issued a Ministerial Ordinance (N0 1992-15) about the technical criteria on personnel radiation dosimetry. In today's climate, it is important to demonstrate and document that the processor's systems and services to others meet national standards of quality. The purpose of this study is to verify the performance of the Teledyne PB-3 personnel dosimetry system that is generally used in Korea Atomic Energy Research Institute (KAERI) by intercomparison with Oak Ridge National Laboratory. The KAERI has been participated in this personnel dosimetry intercomparison study(PDIS) program since 1991 and it could be possible to test and calibrate personnel monitoring system. This report presents a summary and analysis of by about 50 does equivalent measurements reported for PDIS-16 through 18 (1991-1993) with emphasis on neutron does equivalent sensitivity, accuracy and methods to improve personnel dosimetry performance are also discussed.
식도 Rendu-Osler-Weber Disease 1예 (Esophagus, Stomach & Intestine;A Case of Rendu-Osler-Weber Disease)
이원재,박형석,이규택,김재준,백승운,이종균,이준혁,고광철,이풍렬,이종철,안병훈 대한소화기내시경학회 1997 Clinical Endoscopy Vol.17 No.6
Hereditary hemorrhagic telangiectasia, also knawn as Rendu-Osler-Weber disease, is a rare autosomal dominant condition characterized by telangiectases, arteriovenous fistulas, and aneurysms involving the skin and mucosa, as well as blood vessels of the lung, liver, and central nervous system. The most common clinical manifestations are epistaxis and gastrointestinal bleeding. Arteriovenous shunting leads to hepatic congestion, and con- gestive heart failure may occur. We report a casie of Rendu-Osler-Weber disease which revealed typical clinical symptoms and radiologic findings with a review of relevant literatures.
이석호,최윤호,손희정,류광현,이규택,김재준,김용일,최규완,최성호,백승운,이종균,고광철,이풍렬,이종철,노재형,이준혁,심상군 대한소화기학회 1999 대한소화기학회지 Vol.34 No.1
Background/Aims: We aimed to clarify clinical factors which suggest the possibility of neoplastic polyps of gallbladder. Methods: Ninety-five resected gallbladders with polyps were included. Size and number of the polyps were obtained by preoperative ultrasonography. Histollogically, the polyps were classified into non-neoplastic (cholesterol and inflammatory or hyperplastic polyp) and neoplastic lesions (adenoma and adenocarcinoma). Clinical features, maximum diameter and number of the polyps were compared between the two groups. Results: Of 95 patients, non-neoplastic polyps were observed in 65.3% and neoplastic polyps were observed in 34.7%. We found cholesterol polyp in 47.4%, inflammatory or hyperplastic polyp in 17.9%, adenoma in 25.2% and adenocarcinoma in 9.5%. Two groups showed no difference in age, sex, body mass index, cholesterol, triglyceride, glucose, ALT, HBsAg carriage and the number of polyps. Among the patients with non-neoplastic polyps, 70.2% was under 60 years, while 72.7% of the patients with neoplastic polyps was over 60 years (p$lt;0.05). The size of polyps was under 10 mm in 88.9% of non-neoplastic polyps, and between 10 and 15 mm in 40% of neoplastic leisions. Moreover, 68.4% of neoplastic polyps exceeds 15 mm in diameter (p$lt;0.05). Conclusions: The size of polyp (≥10 mm) and patient's age (≥60 years) could be indicators for neoplastic polyps.
Lee, Seung Hyung,Lee, Jong Lyul,Kim, Chan Wook,Lee, Han IL.,Yu, Chang Sik,Kim, Jin Cheon Elsevier 2017 European journal of surgical oncology Vol.43 No.11
<P><B>Abstract</B></P> <P><B>Background</B></P> <P>Recurrence patterns or survival in colorectal cancer patients might differ according to inferior mesenteric lymph node (IMLN) metastasis. However, few studies have compared para-aortic lymph node (PALN) metastasis and IMLN metastasis. The aim of the current study is to identify survival and recurrence patterns in patients with sigmoid colon and rectal adenocarcinoma with either PALN or IMLN metastasis and to evaluate the prognostic significance of PALN and IMLN metastasis.</P> <P><B>Methods</B></P> <P>A retrospective study involving 3076 patients with stage III and IV sigmoid and rectal cancer, who underwent curative surgery between January 2000 and December 2009, was performed. Clinicopathologic features, recurrence patterns, and survival outcomes of 27 patients with PALN metastasis were compared with those of 47 patients with IMLN metastasis. Patients with both IMLN and PALN metastasis were included in the PALN+ group.</P> <P><B>Results</B></P> <P>After curative resection, there was no significant difference in the 5-year disease-free and overall survival rates between the PALN+ and IMLN+ groups (27.5% <I>vs</I>. 29.8%, <I>p</I> = 0.24, and 37% <I>vs</I>. 39.2%, <I>p</I> = 0.19, respectively). Furthermore, there were no significant differences in recurrence rate (PALN+ group, 70.4%; and IMLN+ group, 63.8%; <I>p</I> = 0.69) or recurrence patterns.</P> <P><B>Conclusions</B></P> <P>The results suggest that IMLN metastasis, similar to PALN metastasis, is associated with adverse oncologic outcomes and has prognostic significance. Therefore, it is preferable that IMLN metastasis should be considered under the category of systemic metastasis (M1).</P>
최적화된 모바일IPTV 서비스를 제공하기 위해 CC/PP 프로파일을 활용한 시스템
이형도(Hyung-Do Lee),이강렬(Kang-Lyul Lee),윤희용(Hee-Yong Youn) 한국컴퓨터정보학회 2010 한국컴퓨터정보학회 학술발표논문집 Vol.18 No.2
통신 기술과 모바일 기술의 발달로 인해, 이 두 기술을 융합된 모바일IPTV가 탄생하였다. 하지만, 모바일IPTV는 기존의 IPTV와는 달리 방대한 종류의 디바이스와 그에 따른 제공하는 비디오 포맷과 같은 제약들이 존재한다. 하지만 기존의 서비스는 다양한 이기종의 모바일 장치의 특성을 고려하지 않고 서비스 제공자가 모든 사용자에게 같은 서비스를 제공하기 때문에 사용자는 콘텐츠의 포맷이나 용량으로 인하여 장치에 알맞은 컨텐츠를 받지 못할 경우가 있으며 혹은 신속하게 서비스를 제공받지 못할 경우가 있다. 위와 같은 문제를 해결하기 위해서, 본 논문에서는 CC/PP(Composite Capabilities / Preference Profile)를 이용하여 이기종의 모바일IPTV 장치들의 규격 및 특성을 분석하고, 이를 통해 다양한 기종의 모바일IPTV 사용자들에게 장치의 특성에 맞는 맞춤형 서비스를 최적화하여 제공할 수 있는 시스템을 제안한다.
RFID와 CC/PP 프로파일을 활용한 네트워크 PnP 시스템 설계 및 구현
이형도(Hyung Do Lee),최준열(Jun Yeol Choi),이강렬(Kang Lyul Lee),윤희용(Hee Yong Youn) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2
RFID 기술의 발달로 인해 다양한 분야에 RFID 기술이 사용되고 있고, RFID 디바이스도 다양해지고 있다. 하지만 RFID시스템을 위한 미들웨어는 단순히 인식만을 지원하고 디바이스를 개발하는 제조사 고유의 인터페이스를 사용하여 응용 및 개발을 어렵게 만들고 있다. 본 논문에서는 본 논문에서는 임베디드 RFID 미들웨어를 위해서 CC/PP 프로파일과 UPnP 기능이 추가된 적응형 임베디드 RFID 미들웨어를 제안 및 구현한다.
이종균(Jong Kyun Lee),이풍렬(Poong Lyul Rhee),이준혁(Joon Hyeok Lee),이규택(Kyu Taek Lee),최성호(Seong Ho Choi),노재형(Jae Hyung Noh),김재준(Jae Jun Kim),고광철(Kwang Cheol Ko),백승운(Seung Woon Paik),이종철(Jong Chul Rhee) 대한소화기학회 1997 대한소화기학회지 Vol.29 No.1
N/A Backgroud/Aims: For many years, it has been thought that gallstone disease was relatively rare and pigment stone was prevalent in Korea. But a few recent studies showed that 60-70% of gallbladder stones in Korea were cholesterol stone. This study was designed to obtain a prevalence and risk factors for gallstone in Korea. Methods: A total of 5,126 persons undergoing routine health screening enrolled in this study. All persons were given a questionnaire about smoking habits, alcoho] consumption, parity, and present illness along with its history of management. Height and body weight were checked. They were examined using ultrasonography and hiochemical test such as lipid profiles and fasting blood glucose. Gallstone disease was defined as the presence of posteriorly shadowing, echogenic, movable structures within the gallbladder as determined by ultrasonography and a history of previous cholecystectomy due to gallstones. Chi-square test and stepwise logistic regression analysis assessed the risk factors for gallstone disease. Results: The prevalence of gallstone disease in Korean adults(above 20 years old) was 4.7% in men and 5.2% in women. The age-standardized prevalence was 3.1% and 3.4% respectively. Gallstone disease was more frequent in the older age groups(6.6% in the sixth decade, 12.2% in the seventh decade, and 20.4% in the eighth decade). Age, obesity, hypertriglyceridemia, and diabetes were risk factors for gallstone disease. Smoking, alcohol consumption, parity, and hypercholesterolemia including LDL-C did not differ significantly between persons with and without gallstone disease. Conclusions: The prevalence of gallstone in Korean adults are 3.1% in men and 3.4% in women. The risk factors for gallstone are age, obesity, hypertriglyceridemia, and diabetes. Further studies will be needed about the prevalence of gallstone disease in general population according to the composition of gallstone.(Korean J Gastroenterol 1997; 29:85-92)