http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
6 시그마를 활용한 PC 상가우수점 노트PC 판매비중 개선 사례
하승수(Ha, Seung-Su),안영수(Ahn, Yong-Soo),황인극(Hwang In Keuk) 한국산학기술학회 2008 한국산학기술학회 학술대회 Vol.- No.-
일반적으로 6 시그마 적용사례는 제조분야 중심으로 연구 발표되는 경우가 많고, 판매나 마케팅 분야 의 적용사례는 찾기 힘들실정이다. 본 논문에서는 S전자의 전문상가에서 판매되는 노트북의 판매비중 을 높이기 위해 6 시그마를 적용하여 노트북의 판매비중을 높이기 위해 프로젝트를 진행하였다.
위아전절제술 후 발생한 역행성 공장 - 위중첩증 1 예
조창민(Chang Min Cho),하승수(Seung Su Ha),박재홍(Jae Hong Park),김태석(Tae Seok Kim),강천일(Chun Il Kang),이현정(Hyun Jung Lee),김현수(Hyun Soo Kim),탁원영(Won Young Tak),권영오(Young Oh Kweon),김성국(Sung Kook Kim),최용환(Yong Hwan 대한소화기학회 2001 대한소화기학회지 Vol.37 No.6
Retrograde jejunogastric intussusception is a segmental invagination of jejunal loop into stomach through stoma. It is a rare complication which can develop after partial gastrectomy, gastroenteroanastomosis, or enteroanastomosis. Clinical manifestations are abdominal pain, vomiting with bile or blood, and palpable mass in epigastric area. It presents considerable difficulties in diagnosis unless the index of suspicion is high. Endoscopy and upper gastrointestinal series are very helpful in the diagnosis of this disease. Although its management is usually surgical, an endoscopic reduction can alternatively be attempted. When anatomical reduction is performed on appropriate time, the prognosis is fairly good. We report a case of retrograde jejunogastric intussusception developed in a 52-year-old man with a brief review of literature. He had received subtotal gastrectomy and gastrojejunostomy for duodenal ulcer perforation 20 years before. (Korean J Gastroenterol 2001;37:466-469)
담도 질환에서 자기공명영상 담도췌관조영술과 내시경적 역행성 담도췌관조영술의 비교
정준모,김현수,하승수,박재홍,이종협,조창민,박수영,권영오,탁원영,정민규,김성국,최용환,염현규 대한소화기내시경학회 2001 Clinical Endoscopy Vol.22 No.3
Background/Aims: This study was performed to evaluate the diagnostic accuracy and clinical applications of magnetic resonance cholangiopancreatography (MRCP) compared with endoscopic retrograde cholangiopan - creatography (ERCP). Methods: Prior to carrying out ERCP, MRCP was performed on 71 patients and the two examinations were compared using a double blank test, Results: The results revealed that 15 patients had choledocholithiasis, 4 gall bladder stones, 28 cholangiocarcinomas, 12 pancreatic head cancers, 2 ampulla of Vater cancers, 1 gall bladder cancer with ductal invasion, 4 other benign diseases and 5 normal conditions. For the patients with choledocholithiasis, the values of MRCP's sensitivity, specificity and accuracy were 100%, 9S.2% and 98.6%, respectively, and those of ERCP's were all 100%, For the patients with malignant obstructions, the values of MRCP's sensitivity, specificity and accuracy were 90.7%, 100% and 94.4%, respectively, and the values of ERCP's were 95.3%, 92.9% and 94.4%. Conclusions: These data show that MRCP has a rather high sensitivity, specificity and accuracy in the diagnosis of the biliary tract system, and therefore MRCP can be substituted for ERCP in the aspect of diagnosis.
재발성 하부 위장관 출혈상을 보인 소장의 Mantle Cell Lymphoma 1 예
김성국,조재현,정준모,최용환,전성우,조창민,권영오,탁원영,배한익,하승수 대한소화기내시경학회 2000 Clinical Endoscopy Vol.20 No.4
Lower gastrointestinal bleeding is difficult to localize despite advanced diagnostic procedures such as colonoscopy, small bowel series, mesenteric angiography and radionuclide scan. We had experienced a case of mantle cell lymphoma of small bowel. In this case, the cause of recurrent lower gastrointestinal bleeding and abdominal pain was not defined despite extensive preoperative evaluation. We diagnosed this case as mantle cell lymphoma after exploratory laparotomy.
원발성 간암 환자에서 간동맥 색전술 시행 후 위십이지장 병변의 발생과 관련된 인자
김성국,조재현,정준모,최정일,최용환,전성우,권영오,탁원영,김용주,하승수,염헌규 대한소화기내시경학회 2000 Clinical Endoscopy Vol.20 No.3
Background/Aims: Gastroduodenal lesions such as erosions and ulcers are less infrequent complications after transcatheter arterial embolization (TAE) procedures. This study was conducted to clarify the incidence and associated factors of post-TAE gastroduodenal lesions. Methods: Cases involving 142 patients with unresectable hepatocellular carcinoma (HCC) who underwent TAE during 70 months were retrospectively analyzed. Endoscopic examinations were performed before and after TAE. Patients were classified into two groups depending upon whether gastroduodenal lesions developed or not. Results: New gastroduodenal lesions developed in 32 of 142 patients (22.5%) within 3 months of TAE. Of these, 14 patients (9.9%) developed upper gastrointestinal bleeding. There were no significant differences in clinical and biochemical characteristics between the two groups (p>0.05). There was also no significant difference in catheter selection level, tumor type, number of TAE, use of gelform between the two groups (p>0.05). wever, the cases involving large tumor size (>8 cm) and angiographical abnormalities of hepatic arteries including atypical branching, vascular tortuosity, spasms or intimal dissection during the procedure, infusion of embolizing materials adjacent to vessels supplying the stomach or duodenum, had more post-TAE gastroduodenal lesions. These two factors were found to significantly affect the development of post-TAE gastroduodenal lesions by multivariate analysis (p<0.05). Conclusions: The major factors associated with the development of post-TAE gastroduodenal lesions are large tumor sizes and angiographical abnormalities of hepatic arteries. Upper gastrointestinal endoscopy should be performed as follow-up examinations in these patients.