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FeB와 TiH<sub>2</sub> 혼합분말의 유성볼밀 및 후속열처리에 의한 Fe-TiB<sub>2</sub> 나노복합분말 in situ 제조
( Xuan-khoa Huynh ),배선우 ( Sun-woo Bae ),김지순 ( Ji Soon Kim ) 대한금속재료학회(구 대한금속학회) 2017 대한금속·재료학회지 Vol.55 No.1
Fe-TiB<sub>2</sub> powder was synthesized in-situ by the planetary ball milling and subsequent heat-treatment of an iron boride (FeB) and titanium hydride (TiH<sub>2</sub>) powder mixture. Mechanical activation of the (FeB+TiH<sub>2</sub>) powder mixtures was observed after a milling time of 3 hours at 700 rpm of rotation speed, but activation was not the same after 1 hour milling time. The particle size of the (FeB+ TiH<sub>2</sub>) powder mixture was reduced to the nanometer scale, and each constituent was homogeneously distributed. A sharp exothermic peak was observed at a lower temperature (749 ℃) on the DSC curves for the (FeB+TiH<sub>2</sub>) powder mixture milled for 3 hours, compared to the one milled for 1 hour (774 ℃). These peaks were confirmed to have resulted from the formation reaction of the TiB2 phase, from Ti and B elements in the FeB. The Fe-TiB<sub>2</sub> composite powder fabricated in situ exhibited only two phases of Fe and TiB<sub>2</sub> with homogeneous distribution. The size of the TiB2 particulates in the Fe matrix was less than 5 nm. (Received July 22, 2016; Accepted July 25, 2016)
박진현(Jin Hyun Park),심영학(Young Hak Shim),배선우(Sun Woo Bae),이광훈(Kwang Hoon Lee),조휘율(Whi Yul Cho),김호근(Ho Guen Kim) 대한내과학회 1989 대한내과학회지 Vol.37 No.3
N/A Soft tissue calcification may occur in association with certain diffuse connective tissue disease. However, the incidence of calcinosis cutis associated with systemic lupus erythematosus is low and it has not been reported in Korea. A 37-year-old woman was admitted due to a history of intermittent spiking fever and limitation of motion of both hip joints. Hard and nontender skin lesions were located at the left shoulder and both thighs. Radiologically soft tissue calcification was seen in the left shoulder, lower abdomen and both thighs. By histopathological study, systemic lupus erythematous associated with generalized calcification of the soft tissue was confirmed.
권상옥(Sang Ok Kwon),이동기(Dong Ki Lee),배선우(Sun Woo Bae),이성우(Sung Woo Lee),여경구(Kyong Gu Yoh),백순구(Soon Gu Baek) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.6
Emphysematous gastritis is an inflammatory process of the stomach caused by a gas-forming organism. It may therefore be classified as a form of Phlegmonous gastritis which represents a suppurative cellulitis of the stomach. A case of Emphysematous gastritis subsequent or accidental ingestion of Acetic acid is reported. It showed curvilinear extra-luminal gas shadow along the lesser curvature of gastric fundus and upper body on plain abdomina] X-ray. UGI study and abdominal C-T scan showed gas m the wall of stomach. The patient was rapidly deteriorated with downhill course and expired on 4th hospital day.
수술로 치유된 간성수흉증 ( Hepatic Hydrothorax )
권상옥(Sang Ok Kwon),홍인수(In Soo Hong),이동기(Dong Ki Lee),배선우(Sun Woo Bae),이성우(Sung Woo Lee),오중환(Joong Hwan Oh) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.4
Hepatic hydrothorax is defined as the presence, in approxirnately 6% of patients with cirrhosis, of a large pleu, al effusion in the absence of primary pulmonary or cardiac disease. Clinical ascites is almost always evident and the pleural effusion is usually right-sided. A 36-yr-old woman with clinical and labolatory evidence of hepatitis B surface antigen-positive liver cirrhosis was admitted hecause of respiraton distress. A moderate amount of ascites w noted on physical i xamination arid the right hydrothorax was re:ealed on the chest X-ray film. Diagnosis was confirmed by the intraperitoneal and intrapleural injction of radioisotope Tc-tin colloid that demonstratcd the one-way transdiaphragmatic flow of fluid from the peritoneal to pleural cavity. We report on a casw of refractory hepatic hydrothroax, wiiich was succesfully treated with surgical closure of diaphragmatic defect and chemical pleurodesis.
김남동(Nam Dong Kim),권상옥(Sang Ok Kwon),김현수(Hyun Soo Kim),이동기(Dong Ki Lee),배선우(Sun Woo Bae),장우익(Woo Ick Jang),김호근(Ho Guen Kim),박찬일(Chan Il Park) 대한내과학회 1992 대한내과학회지 Vol.43 No.2
N/A Background: Alcoholic liver disease (ALD) is caused by chronic drinking. The amount and duration of drinking which develop ALD have been reported variously for the different studies. Also the state of liver is various from normal liver to liver cirrhosis or hepatoma for chronic drinkers. Even though the interest on the ALD is growing recently due to the increase of the drinking population and the alcohol consumption in Korea, the clinical research is still insufficient. So this study was started to get the characteristics of the histologic pattern of ALD, required minimum amount of alcohol to develop ALD and clinical differences in various types in Korea. Methods: Authors analysed drinking history, clinical and laboratory findings of 126 patients who were con- firmed as ALD by liver biopsy. Results: 1) In histologic types, 13 fatty liver, 2 alcoholic hepatitis, 69 alcoholic hepatic fibrosis, 18 alcoholic chronic active hepatitis and 24 liver cirrhosis were found. 2) The subjects were 42. 7 years old in average with no difference in types, all male except 2 cases. 3) 106 patients whose drinking history was known drank 149.9 gm per day and 808.3 kg in total amout in average. Alcoholic chronic active hepatitis or liver cirrhosis patients drank more than fatty liver patients in daily amount (p < 0. 05), but the duration of drinking had no difference in types with 16.9 years in average. Also 98.1% of the subjects drank more than 45 gm of alcohol in daily average and 99.1% of the subjects had been drinking for more than 3 years. 4) Symptoms were various such as fatigue or general weakness, abdominal pain, nausea or vomiting, anorexia. Physical signs were also various such as hepatomegaly, jaundice and spider angioma. But any statistical meaning between types cannot be given due to the small number of subjects. 5) In hematologic and biochemical tests, the albumin level was lower in liver cirrhosis than fatty liver or alcoholic hepatic fibrosis (p<0.05), and the platelet count was lower in alcoholic chronic active hepatitis or liver cirrhosis than fatty liver or alcoholic hepatic fibrosis (p<0.05), but there was no laboratory finding to distinguish the types. Conclusions: Results of this study suggest that alcoholic hepatitis is rare and alcoholic hepatic fibrosis is the most frequent in histologic types of ALD. 98,1% of the subjects drank more than 45 gm of alcohol in daily average for more than 3 years. The types of ALD cannot be distinguished by the symptoms, physical signs, hematologic and biochemical tests.
Billroth-Ⅱ 위절제술 환자에서 치료 내시경적 역행성 담관췌관조영술
이성우,장우익,권상옥,이동기,배선우,김승률 대한소화기내시경학회 1992 Clinical Endoscopy Vol.12 No.2
Endoscoptc retrarade cholatopancreatagraphy(ERCP) procedures are more difficult in gatients who have undergone partial gastrctomy with Billrpth II anastomosis. Because its altered anatomical relationship, the endoscopist is presented with additional prohlerns: (i) Dfficulties in entering the afferent loop, depending on the surgical techiquies used. (ii) The etdbst'oxpe may be tod sort to reach the papillary region unless the loops are sn' ecebsfulljl straightened out (iii) Difficulties' in passing the ligmnt of Treitx, eapeCially io pxtietits witih Braun'g ana,stotntysis, Uv) ProbleFCts in cannulatillg the papilla mind esecclly the'COtetnori bile duct from a reverseCl position. (v) Probiems in caprying out a paillotoa y in a correct position. We attempted endoscapic sphincterotomy in 3 patients previously subjected to Billroth II gastrectonny with needle knife, and succeeded in 2 of,them. In the two patients, successful biliary drainage was achieved. And one patients with Bilroth II gastrectomy, presented with CI3D stoke and icholngitis, was successfully treated with endoscopic stone retrievial: The patient with a BiIlroth-I3 operation may undera endoscopic diagnostic as well as therapeutic prcedur with a high rate of success, and cast be suitable crddates for ERCP arid eIndoopic,sphicterotomytES).II . -2'1
Yersinia enterocolitica 혈청형 03에 의한 패혈증 1예
정윤섭,이경원,배선우,황규열,송원근,윤갑준 대한감염학회 1993 감염 Vol.25 No.2
Yersinia enterocolitica was isolated from blood specimens of a 56-year-old male patient with chronic liver disease who was admitted to Wonju Christian Hospital in April 1992. Stool specimen did not yield any other entero-pathogenic bacteria. The isolate showed typical cultural and biochemical characteristics of Y. enterocolitica, biotype 3. The isolate was identified as serotype 03 and was resistant to cephalothin, but susceptible to other antimicrobials by the NCCLS disc diffusion method. The patient recovered after receiving fluid therapy together with gentamicin and cefamandole.
조미연,권상옥,이동기,배선우,백순구 대한소화기내시경학회 1993 Clinical Endoscopy Vol.13 No.1
Brunner's gland adenoma(or Brunneroma) is clinically relevant tumor-like lesion of the duodenum which is composed of submucosal Brunner's gland tissue. Since the first case by autopsy was described by Cruveihier in l935, there have been less than 190 reports in the world literature, Brunner's gland adenoma is an extremely rare entity that accounts for only 10.6% of benign duodenal tumors, which are themselves relatively rare representing 0.008% of all surgical and autopsy specimens. The clinical manifestation of this tumor are non-specific gastrointestinal complaints, such as bloating or epigastric pain, and tumor often gives rise to melena or obstruction, It is postulated that this tumor are hamartomas rather than true neoplasm. However, they undergo rarely malignant transformation. We report on a case of a large pedunculated Brunner's gland adenoma, which was successfully polypectomized.