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VOD 시스템을 위한 Clustered Proxy Server 설계
배기범(Ki-Beom Bae),김종훈(Jong-Hoon Kim),이철훈(Cheol-Hoon Lee) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅲ
기존의 VOD시스템을 확대하여 원거리에 존재하는 서비스제공자로부터에서 사용자에게 더 빠른 응답서비스를 제공하고, 장애가 발생하더라도 사용자에게 중단 없이 제공되도록 하기위하여 프락시 서버를 두었는데, 특히 일정 지역내 존재하는 프락시 서버들간에 클러스터를 형성하여 단일 프락시 서버로 만족할수 없는 다수의 클라이언트로부터의 요구를 받아들이고 cache 사이즈의 감소와, 더 높은 hit rate를 제공하도록 한다. 또한 이 클러스터내의 프로그램관리를 위해 비디오 데이터에 대한 정보를 hint로 저장하여 각 프락시에서 관리함으로써 네트웍을 통해 사용자까지 실시간으로 비디오 데이터를 전송이 가능하고, 직접 데이타의 전달 없이 클러스터를 효율적으로 관리할수 있도록 한다.
하시모토 갑상선염을 동반한 유두상 갑상선암의 임상병리학적 특징
강상현,하태권,박하경,이홍태,신재호,안민성,김광희,배기범,김태현,최창수,김진수<SUP>1<.SUP>,김기훈<SUP>1<.SUP>,김운원<SUP>1<.SUP>,김상효,Sang Hyun Kang,Tae Kwun Ha,Ha Kyoung Park,Hong Tae Lee,Jae Ho Shin,Min Sung Ahn,Kwang Hee Kim,Ki Beom Bae,Ta 대한갑상선-내분비외과학회 2013 The Koreran journal of Endocrine Surgery Vol.13 No.1
Purpose: Hashimoto's thyroiditis (HT) is an important cause of hypothyroidism caused by autoimmune chronic lymphocytic thyroiditis. In order to attain a better understanding for use in treatment of papillary thyroid carcinoma (PTC) coexisting with HT, we conducted an analysis of the clinicopathologic features, as well as the importance of HT as a prognostic factor. Methods: In this retrospective study, we analyzed 341 patients who were histopathologically diagnosed with PTC following surgery. Results: PTC coexisting with HT was observed in 19.6% (67 patients) of all PTC patients. A statistically significant gender difference was observed in the group with HT (two male vs. 65 female), with a higher positive rate of anti-thyroglobulin antibody and smaller tumor size, compared to the PTC group without HT. When tumor size increased, a lower coexistence rate of HT was observed. No significant differences were observed in multifocality, cervical lymph node (LN) metastasis, coexistence of benign nodule, and extent of LN dissection. However, frequency of extrathyroidal extension was significantly lower and total thyroidectomy rate was higher in the group with HT. TNM stage and AMES stage were similar in both groups; frequency of high MACIS score showed a significant decrease in the group with HT. The recurrence rate and disease-free survival in patients with PTC were not significantly affected by coexistence of HT. Conclusion: We found a significant relationship with gender, extrathyroidal extension, and tumor size in PTC coexisting with HT. However, no significant differences in recurrence rate and disease-free survival were observed between groups. Therefore, coexistence in PTC could not be applicable as a prognostic factor of PTC.
Sumin Ha(하수민),Tae Hyun Kim(김태현),Anbok Lee(이안복),Kyung-Do Byun(변경도),Jae Woong Han(한재웅),Min Sung Ahn(안민성),Kwang Hee Kim(김광희),Ki Beom Bae(배기범),Ha Kyoung Park(박하경),Jae Ho Shin(신재호),Sang Hyuk Seo(서상혁) 대한종양외과학회 2015 Korean Journal of Clinical Oncology Vol.11 No.2
Purpose: Oncoplastic surgery (OPS) has emerged as the latest ideal surgery in treatment of breast cancer. The purpose of this study is to evaluate the cosmetic outcome of volume displacement surgery and patients’ satisfaction in Korean women with relatively small breast size. Methods: This is a retrospective study of 173 patients who had volume displacement of OPS between January 2008 and December 2013. Cosmetic outcome was evaluated by patients’ questionnaire and a doctor. The patients’ satisfaction was assessed by a questionnaire divided into four categories; cosmetic satisfaction, satisfaction on operative method, femininity, and side effects. Relationship between removed specimen volume and patients’ satisfaction was also analyzed. Results: About 90% of patients answered above the fair in cosmetic items and operative methods, only less than 5% of all patients reported of severe complications such as cramps or limitations of exercise. The patients’ cosmetic satisfaction score were significantly inversely related with removed specimen volume and doctor’s cosmetic assessment was also accordance with this result (P<0.05). Most patients preferred good contour over short scar regardless of age and marital status (good contour 54% vs. short scar 21%). Conclusion: Volume displacement of OPS brings both the best possible cosmetic outcome and high patient satisfaction for Korean women with a small size of breast in breast cancer surgery. It is highly suggestive that Korean women considers good contour more than the size of scar; therefore, volume displacement of OPS is a recommendable means of breast cancer surgery for Korean women.
Se Hui Oh(오세휘),Nak Jun Choi(최낙준),Sang Hyuk Seo(서상혁),Min Sung An(안민성),Kwang Hee Kim(김광희),Ki Beom Bae(배기범),Jin Won Hwang(황진원),Sang Heon Lee(이상헌),Ji Hyun Kim(김지현),Sam Ryong Jee(지삼룡),Mi Seon Kang(강미선),Kwa 대한종양외과학회 2016 Korean Journal of Clinical Oncology Vol.12 No.1
Purpose: Colorectal obstruction develops most frequently by carcinoma, and 7%–30% of these colorectal carcinomas are acute cases. The oncologic safety of self-expanding metal stent (SEMS) insertion as a bridge to surgery has not yet been established. Thus, we investigated the oncologic safety of SEMS insertion as a bridge to surgery in patients with obstructive colorectal cancer. Methods: This retrospective had 56 patients enrolled requiring emergency management for obstructive colorectal cancer at stage II or III, who had undergone curative surgery between July 2008 and June 2011. These subjects were divided into two groups: patients who had undergone emergency surgery without SEMS insertion (non-stent group) and those who had undergone elective surgery after preoperative decompression with SEMS insertion (stent group). The two groups were compared for clinicopathologic characteristics, postoperative complications, and survival rate. Results: Enterostomy was performed in 25 patients (100.0%) in the non-stent group and 1 patient (3.2%) in the stent group; laparoscopic surgery was carried out in 7 patients (28.0%) in the non-stent group and 19 patients (61.29%) in the stent group, each showing statistically significant differences. There was no statistically significant difference in postoperative complications and 5-year disease-free survival rate (72% vs. 74.19%, P=0.87, respectively). Conclusion: In treatment of malignant colorectal obstruction, elective operation after stent insertion had similar oncologic outcomes compared with emergency operation. Preoperative stent insertion not only lowers the incidence of enterostomy but also makes laparoscopic surgery possible, thereby enhancing patients’ quality of life. Therefore, preoperative stent insertion is a useful method that may replace emergency surgery in treatment of malignant colorectal obstruction.
송영진 ( Young Jin Song ),최정식 ( Jung Sik Choi ),박수영 ( Su Young Park ),박영진 ( Young Jin Park ),안민성 ( Min Sung An ),배기범 ( Ki Beom Bae ),홍관희 ( Kwan Hee Hong ) 대한내과학회 2014 대한내과학회지 Vol.86 No.1
급성 췌장염 환자에게 대장 천공이 생기는 경우는 매우 드물지만 사망률이 50% 이상인 치명적인 합병증이므로 중 증 급성 췌장염 환자를 치료할 때는 대장 관련 합병증도 고려하여야 한다. 본 증례에서는 급성 췌장염으로 입원한 50세 남자 환자를 치료하던 중 진단 후 22일째에 대장의 천공을 발견하였다. 췌장 효소가 풍부한 염증 삼출물의 직접적인 작용으로 대장의 괴사와 천공이 발생한 것이다. 장 절제술과 괴사 조직 절제 및 배액 치료를 하여 환자를 살려낼 수 있었다. 우리나라에서 급성 췌장염에 의해서 간 굽이나 우측 대장 이 천공되어 즉시 수술한 보고가 없다. 이에 저자들은 급성 췌장염 후에 발생한 대장 천공의 예를 문헌고찰과 함께 보 고하고자 한다. Colonic perforation after acute necrotizing pancreatitis is a very rare but critical complication. The mortality rate is greater than 50%. Therefore, a high index of suspicion is needed for early detection of the complication. We present a case of a 50-year-old man diagnosed as colonic perforation after acute necrotizing pancreatitis. During the treatment course, fecal material was drained via a pleural drainage tube. Colonic perforation was confirmed on CT scan. The pathogenesis of colonic perforation in this case involved direct spread of pancreatic enzymes and inflammatory exudate. He was treated successfully with colectomy, ileostomy, debridement of necrotic tissue, and drainage. (Korean J Med 2014;86:59-64)