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곽동석(Kwak Dong Seok),강병수(Kang Byung-Soo),연달구(Yeon Dal Goo),이용학(Lee Yong-Hak) 한국구조물진단유지관리학회 2004 한국구조물진단학회 학술발표회논문집 Vol.- No.-
Prestressed multi-composite girder bridges with PS tendon at Positive bending moment region offer elastic behavior to higher loads, Increased ultimate capacity and reduced structural steel weight Two beams were tested to examine ultimate behaviors of prestressed multi-composite girder bridges subjected to positive bending moment The experimental observations of the Prestressed multi-composite girder bridges subjected to positive flexural moment are investigated and compared to the numerical results obtained by sectional analysis method, and 1-D and 3-D finite element analysis methods
곽동석 ( Kwak Dong Seok ),강병수 ( Kang Byung-soo ),연달구 ( Yeon Dal Goo ),이용학 ( Lee Yong-hak ) 한국구조물진단유지관리공학회 2004 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.8 No.2
Prestressed multi-composite girder bridges with PS tendon at Positive bending moment region offer elastic behavior to higher loads, increased ultimate capacity and reduced structural steel weight. Two beams were tested to examine ultimate behaviors of prestressed multi-composite girder bridges subjected to positive bending moment. The experimental observations of the Prestressed multi-composite girder bridges subjected to positive flexural moment are investigated and compared to the numerical results obtained by sectional analysis method, and 1-D and 3-D finite element analysis methods.
다발성 림푸종성 용종증의 임상상으로 나타난 mantle cell lymphoma 4예
김동환(Dong Hwan Kim),손상균(Sang Kyun Sohn),정진태(Jin Tae Jung),김기연(Ki Youn Kim),곽동석(Dong Seok Kwak),박태인(Tae In Park),박소향(So Hyang Park),배한익(Han Ik Bae),서장수(Jang Soo Suh),이규보(Kyu Bo Lee) 대한내과학회 2000 대한내과학회지 Vol.59 No.4
Multiple lymphomatous polyposis(MLP) is an interesting clinical entity of non-Hodgkin's lymphoma(NHL) and is defined as B-cell lymphoma characterized by the presence of multiple lymphomatous polyps along the gastrointestinal tract. Recently MLP has been considered as a variant form of mantle cell lymphoma(MCL). The median survival of patients with MCL is only 3 years, and none of the available conventional chemotherapy regimens appears curative. Encouraging results have been reported with high dose chemotherapy with autoSCT and alloSCT for its treatment. We introduce 4 cases of MLP diagnosed as MCL by morphologic and immunologic method. The common clinical findings of these cases were splenomegaly (4/4), multiple intraabdominal lymphadenopathy (4/4), and advanced stage (3/4) at presentation. The overall remission duration was relatively short (5-27 months) and three of four cases relapsed after conventional chemotherapy or autologous stem cell transplant. Our report suggests that MCL presented as MLP is a high risk subgroup of NHL and more aggressive approach may be needed for cure.(Korean J Med 59:413-422, 2000)
강병수 ( Kang Byung-soo ),곽동석 ( Kwak Dong Seok ),홍인택 ( Hong In-taek ),이용학 ( Lee Yong-hak ) 한국구조물진단유지관리공학회 2004 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.8 No.2
Prestressed multi-composite girder bridges with concrete infilled steel tube at negative flexural moment region takes the advantages provided due to the interactive reaction in the steel tube and concrete interface layer, enhancing local buckling resistance and the concrete strength provided by the lateral confining effect of concrete. Two beams were tested to examine ultimate behaviors of prestressed multi-composite girder bridges subjected to negative flexural moment. The experimental observations of the Prestressed multi-composite girder bridges subjected to positive flexural moment are investigated and compared to the numerical results obtained by sectional analysis method, and 1-D and 3-D finite element analysis methods.
강병수(Kang Byung-Soo),곽동석(Kwak Dong Seok),홍인택(Hong In-Taek),이용학(Lee Yong-Hak) 한국구조물진단유지관리학회 2004 한국구조물진단학회 학술발표회논문집 Vol.- No.-
Prestressed multi-composite girder bridges With concrete infilled steel tube at negative flexural moment region takes the advantages provided due to the interactive reaction in the steel tube and concrete interface layer, enhancing local buckling resistance and the concrete strength provided by the lateral confining effect of concrete Two beams were tested to examine ultimate behaviors of prestressed multi-composite girder bridges subjected to negative flexural moment The experimental observations of the Prestressed multi-composite girder bridges subjected to positive flexural moment are investigated and compared to the numerical results obtained by sectional analysis method, and I-D and 3-D finite element analysis methods
이규보(Kyu Bo Lee),이재태(Jae Tae Lee),정병천(Byung Cheon Chung),최정일(Chung Il Choi),곽동석(Dong Suk Kwak),전석길(Seok Kil Zeon),김정균(Jeong Gyun Kim),배선근(Sun Kun Bae),이형우(Hyung Woo Lee) 대한핵의학회 1993 핵의학 분자영상 Vol.27 No.1
N/A In order to evaluate the scintigraphic features of choledochal cyst and these diagnostic value, authors investigated the findings of fourteen patients with choledochal cyst undergone hepatobiliary scan with Tc-99m-DISIDA before surgery. Five cases demonstrated the decreased hepatic uptake at 5-minute image of which four cases revealed severe jaundice. Seven cases demonstrated visualization of the cystic dilated common bile duct within 1 hour after injection. Two cases showed the cyst activity between 1 and 12 hour, but the cyst activity was not visible in five cases. Nonvisualization of the gall bladder was noted in ten cases, while four cases demonstrated visualization of the gall bladder within 1 hour. The time of visualization of gut activity was variably delayed. The intestinal activity was found in three cases within 1 hour and appeared in three cases between 1 and 2 hours and eight cases showed no visible gut activity. In four cases, intrahepatic ductal prominence was visible on the scintigram. Seven cases showed early and persistent accumulation of tracer in the common bile duct. Three cases showed persistent photon-deficient area in the gall bladder region. Two cases showed early photon-deficient area around gall bladder region with progressive accumulation of tracer in the same region. Two cases showed no evidence of activity in the biliary tract but noted late excretion into the sma11 intestine. We concluded that hepatobiliary scan using Tc-99m-DISIDA is a noninvasive test useful in the eva1uation and the diagnosis of choledochal cyst.
곽동석,이영학,김정균,배선근,최정일,이재태,이규보,이영하 慶北大學校 醫科大學 1994 慶北醫大誌 Vol.35 No.3
목적 : 갑상설관낭을 수술하여 조직학적 소견을 얻은 예들에서 임상적 소견, 갑상선 스캔 및 조직학적 소견 등을 조사하여 이 질환의 임상상을 정립하고자 이 분석을 시도하였다. 대상 및 방법 : 대상은 41예의 갑상설관낭 환자들로서 후향성 분석을 하였는데, 갑상선 스캔은 Tc-99m pertechnetate를 정맥주사한 후에 실시하였다. 결과 : 갑상설관낭 환자 41예 중에서 38예(93%)는 목의 정중부에 위치한 결절을 주소로 하였고, 일부에서는 누공을 형성하거나 감염된 경우도 있었다. 갑상선 기능검사 소견은 모두 정상이었고, 초음파소견은 주위와 경계가 분명한 저에코 낭종양상을 나타내었고, 갑상선 스캔에서는 결절부위에 방사능 섭취의 증가는 없었다. 갑상설관낭병소의 조직학적 소견에서는 17예(41%)에서 갑상선 여포세포가 발견되었고, 34예(83%)에서는 상피세포조직이 발견되었다. 결론 : 갑상설관낭은 93%에서 목의 전면 중앙 부위에 결절을 주소로하며, 갑상선 기능검사 소견과 Tc-99m 스캔 소견은 정상이며, 초음파에서는 저에코 낭종으로 나타나며, 조직학적 소견에서는 41%에서 갑상선 조직이 포함되어 있었고, 83%에서 상피조직으로 구성되어 있었다. A clinical analysis was done in forty one patients with surgically proven thyroglossal duct cyst. The most common symptom was palpable mass at the midline of neck(93%), but there were also fistulae formations and infection. Thyroid function tests revealed euthyroidism in all cases, and ultrasonogram showed hypoechoic cysts with well defined margines. Thyroid scan with Tc-99m pertechnetate showed no radioisotopic uptake on thyroglossal duct cysts. There noted thyroid follicles in the histological findings in 17 cases(41%) and epithelial cell lining in 34 cases(83%). The reason for nonvisualization of the thyroglossal duct cysts on scan might be that the amount of thyroid tissue is too small for the thyroid tissue to take the radiopharmaceuticals as doing of normal thyroid gland. There noted two cases of recurrence after Sistrunk's operation.