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이혁규,윤석영,김재한,Lee, Hyeok-Gyu,Yun, Seok-Yeong,Kim, Jae-Han 한국수자원학회 1995 물과 미래(한국수자원학회지) Vol.28 No.4
본 연구는 지형학적 순간단위도를 산정하는데 있어서, 주된 매개변수인 지체시간을 세가지형으로 결정하여, 그 결과들을 수문학적으로 해석하였다. 지체시간의 산정방법으로서 첫째로 평균유속만을 이용한 것과, 둘째로 유로연장과 평균유속을 조합한 방법을 적용하였으며, 셋째로 유역면적과 Boyd및 Singh의 경험적 계수들로부터 얻어진 지체시간의 상관식을 사용하였다. 각 방법들의 결과분석을 위하여 실제유역의 자료들을 사용하였으며, 그 결과로부터 소유역의 경우에는 평균유속만의 방법도 가능하나, 유역면적이 커질수록 유출량의 재현성에 있어 정확도가 떨어짐을 알 수 있었다. 또한 세번째 방법은 지체시간의 정확도가 떨어져, 면적뿐만 아니라 다른 수문학적 특성인자들도 고려되어야 함을 나타내었다. 따라서, 적용방법들중 두번째 방법이 지체시간 산정에 있어서 우수함을 보여주었으며, 이로부터 구한 유출량도 타 방법들에 비해 실측치와 가장 근사하게 접근하였다. Three types of methods are used to determine the lag time which is an important parameter in estimating the geomorphological instantaneous unit hydrograph (GIUH) and their results are anlyzed hydrologically in this study. The first method uses only the average velocity and second one uses the combination of the stream length and the average velocity. The third method employs the relationship between watershed area and lag time obtained from the empirical coefficients of Boyd and Singh. To verify the applicabilities of such methods to the actual river basin, the obtained lag times were tested by using the observed data. The results showed that the first method was applicable to small watershed area but not to larger area. The several other hydrologic characteristics beside the watershed area should be considered for the third method because the accuracy of the lag time was not good. Finally, the second method gave the most similar simulation results and the best agreements to the observed runoff data than any other method.
증례 : 호흡기 ; 골수형성이상증후군에서 폐 침윤과 흉수를 동반한 스위트 증후군 1예
고규봉 ( Gyu Bong Ko ),이혁규 ( Hyeok Gyu Lee ),이호성 ( Ho Sung Lee ),최재성 ( Jae Sung Choi ),서기현 ( Ki Hyun Seo ),나주옥 ( Ju Ock Na ),김용훈 ( Yong Hoon Kim ) 대한내과학회 2011 대한내과학회지 Vol.80 No.2
저자들은 75세 골수형성이상증후군 환자에서 폐 침윤과 동반된 양측 흉수가 발생한 스위트 증후군 1예를 경험하였기에 이를 보고한다. Sweet`s syndrome is characterized by a constellation of clinical symptoms, physical features, and pathologic findings, which include fever, leukocytosis, tender erythematous skin lesions, and a diffuse infiltrate consisting predominantly of mature neutrophils in the upper dermis. Pulmonary involvement in Sweet`s syndrome is rare. In addition, a pleural effusion has been rarely reported in the pulmonary involvement of Sweet`s syndrome. We report a case of Sweet`s syndrome presenting with pulmonary involvement and a bilateral pleural effusion in a patient with myelodysplastic syndrome. (Korean J Med 2011;80:216-220)
일차성 Sjogren씨 증후군에서 발생한 림프구성 간질성 폐렴 증례보고와 국내문헌고찰
모상일 ( Sang Il Mo ),이혁규 ( Hyeok Gyu Lee ),조아라 ( A Ra Cho ),정혜경 ( Hye Kyoung Chung ),이호성 ( Ho Sung Lee ),최재성 ( Jae Sung Choi ),서기현 ( Ki Hyun Seo ),나성수 ( Seong Su Nah ),김용훈 ( Yong Hoon Kim ),나주옥 ( Ju Ock 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.5
Lymphoid interstitial pneumonia (LIP) is a rare benign lymphoproliferative interstitial lung disease. LIP has been associated with autoimmune disorders, HIV, viral infections, and so on. Once underlying systemic diseases have been excluded, a diagnosis of idiopathic LIP can be made. Although 6 cases of pathologically confirmed LIP have occurred in Korea, thus far none has been associated with primary Sjogren`s syndrome. A 44-year-old man was admitted to hospital due to a dry cough and dypsnea on exertion that had been ongoing for 2 months. A chest radiography showed multiple and variable-sized cystic lesions, on both lungs and both interstitial infiltration and consolidation in both lower lung fields. Tests for autoantibody showed positive results of anti-nuclear antibody and anti-Ro/La antibody. The patient underwent a video assisted thoracoscopic surgery biopsy and pathologically confirmed LIP. We report the first known case of LIP-associated with primary Sjogren`s syndrome in Korea.
김기원 ( Ki Won Kim ),정혜경 ( Hye Kyoung Chung ),이한민 ( Han Min Lee ),조아라 ( A Ra Cho ),이세환 ( Se Whan Lee ),나성수 ( Seong Su Nah ),모상일 ( Sang Il Mo ),이혁규 ( Hyeok Gyu Lee ),고규봉 ( Gyu Bong Ko ),강병일 ( Byong Il Ka 대한류마티스학회 2011 대한류마티스학회지 Vol.18 No.1
Klinefelter`s syndrome (KFS) is a gonosomal aberration disease that occurs in males, and is characterized by 47, XXY karyotype, hypogonadism and a lack of secondary sexual characteristics. A potential link between this hormonally deficient syndrome and autoimmune disease, particularly systemic lupus erythematosus (SLE), has been reported. On the other hand, KFS is rarely reported to be accompanied by rheumatoid arthritis (RA), and there are no Korean cases reported. We report the first Korean case of a KFS patient with sero-positive RA and discuss the role of the pathogenesis of RA with KFS.