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설계하중 변화에 따른 교량상 궤도의 부가축응력 증감에 관한 고찰
전병흔(Byeong-Heun Jeon),최신형(Sin-Hyung Choi),김애림(Ae-Rim Kim),임남형(Nam-Hyoung Lim) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.10
교량상에 설치되는 장대레일은 궤도와 교량의 상호작용에 의해 레일에 발생하는 축력분포가 토노반상 장대레일에 비해 매우 복잡하다. 또한 교량에 가해지는 온도하중, 시·제동 하중, 수직하중 등의 영향이 추가로 발생되어 장대레일 축력과 함께 궤도와 구조물의 상호작용에 의한 추가 문제를 야기한다. 이와 같은 문제점을 해결하기 위하여 국내 철도설계지침 KRC-08080에서는 궤도-교량 종방향 상호작용의 검토 방법을 제시하고 있다. 본 연구에서는 철도설계지침의 개정 전(12년 12월) 및 개정 후(14년 1월)에 대한 상이하게 제시된 설계하중을 적용하여 설계하중 변화에 따른 부가축응력 증감을 비교 분석하였다. The Continuous Welded Rail(CWR) constructed on the bridges is very complex compared to above the roadbed CWR axial load distribution occurring in the rail by the interaction of the track and bridges It also leads to additional problems caused by the interaction with the track and structure with the CWR axial force, which is occured to added to the impact of the temperature load, acceleration or braking load and a vertical load applied to the bridge. The method presents a review of the bridge longitudinal interaction national railway track design guidelines KR C-08080 in order to solve this problem. In this study, we analyze the proposed design load to apply the rail design guidelines before revised(December 12) and then revised(January 14), compared to the increase or decrease of additional axial stress in accordance with the design loading.
위장관 ( 胃腸管 ) : 20대 청년기 위암의 일반적 특성
안세현(Sei Hyun Ahn),박건춘(Kun Choon Park),김신형(Sin Hyung Kim) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.4
N/A A clinical review was carried out in 64 cases of gastric cancer of the 3rd decade male patients who were diagnosed at the Department of Surgery, Capital Armed Forces General Hospital between Jan. 1980 and Dec. 1989. The results were as follows; 1) The incidence of gastric cancer in 3rd decade male patients was 23.8% among the all gastric cancers. 2) The incidence of gastric cancer in 21-25 of age was 60.9%< and 26-30 of age was 39.1% among the 3rd decade gastric cancers. 3) The patients with blood type A were 39.1#9p and blood types 0, B, AB were 29.1%p, 25.0%, 6.2% in order. 4) Chief complaints in order of frequency were as follows; epigastric pain (75.0%), indigetion (35.9%) and weight. loss (31.2%). On physical exeminations, epigastric tenderness (73.4%), epigastric palpable mass (32.8%), and anemia (29.7%) were common. 5) Most patients were admitted to hospital after 6 months of illness. (59.4%) 6) The preoperative diagnostic rate was 82.0% by UGIS, 90.1% by gastroscopy and 93.8% by endoscopic biopsy. 7) The most common site of tumor was pylorus and antrum (65.6%). 8) The most popular size distribution of primary tumor was between 4 and 8 cm in diameter(42.2%). 9) In Borrmanns classification, common types were type III (46.9%) and type II (29.7%), and early gastric cancer was 3 cases (4.7%). 10) In pathologic findings, the most common type was adenocarcinoma (76.6%). 11)Regional lymph node metastasis was seen in 77.4% of resected cases, and distant metastasis was in pancreas, liver and mesocolon in order. 12) Curative gastric resection was performed in 30 cases of the 62 cases (48.4%) and resectability
안세현(Sei Hyun Ahn),박건춘(Kun Choon Park),민병철(Pyung Chul Min),이인철(In Chul Lee),김신형(Sin Hyung Kim),이규형(Gyu Hyung Lee) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.1
Cystic tumor is a rare disease of the spleen. Even the cystic lymphangioma of the spleen is the rarest one. We experienced a case of splenic cystic lymphangioma of 40 year old Korean woman. Splenectomy was performed and the final diagnosis was made by histologcal examination.