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오두환,안호경,길훈배,유해의 한국농화학회 1990 Applied Biological Chemistry (Appl Biol Chem) Vol.33 No.4
The physical and chemical properties of dry atom starch(DS), defatted acorn starch (DFS) and reincorporated acorn starch(RIS) were investigated. Swelling power and solubility of all starch sample; were exhibited two stage-behavior. It had a little change on the pasting temperature of DS and DFS but the peals viscosity and breakdown value of DFS was somewhat higher than those of DS and RIS. Flow behavior of gelatinized starch pastes showed a pseudoplastic behavior and flow behavior index was lower than unit. The consistency coefficient showed concentration and temperature dependency. The activation energies of DIS, DFS and RIS were from 1.70K㎈/g·㏖ to 3.75K㎈/g·㏖.
Pseudomonas sp . YD - 15 가 생산하는 CMCase 의 특성
오두환,김창남,이정우,허남윤 한국농화학회 1992 Applied Biological Chemistry (Appl Biol Chem) Vol.35 No.3
A bacterium having CMCase activity was isolated form soil and identifed as a Pseudomonas sp YD-15. The optimum conditions for the production of CMCase were avicel 1.2%, yeast extract 0.5%, KNO₃ 0.06%, K₂HPO₄ 0.2%, MgSO₄·7H₂O 0.15%, pH 8.0, 30℃ and 60 hours cultivation. The CMCase was purified 15.3 folds with 14% yield through ammonium sulfate precipitation, DEAE-sepharose column chromatography and sephadex G-100 gel filtration chromatography. The optimum pH and temperature for the enzyme activity were 6.0 and 50℃, respectively. The enzyme was stable between pH 5.0 and 8.0, below 50℃. The molecular weight was calculated about 100,000 by SDS-polyacrylamide gel electrophoresis. K_m value for CMC used as a substrate was 40 ㎎/㎖.
吳斗煥 계명대출판부 1979 童山申泰植博士古稀紀念論叢 Vol.S No.-
지금까지의 論議를 綜合하연 韓國經濟成長의 特徵의 하나는 農業華命이 存在하지 않은 初期條件에 서 出發했다는 點이며, 이 過程에서의 農業의 役은割 政策的인 農産物 交易條件의 惡化로 노동력 공급측면에 만 局限되었다는 點이다. 이러한 成長過程의 特徵은 輸出市場의 不安에 對備한 內需市場의 基盤을 造成하지 못하는 결함을 초래하고 農工間의 聯關性深化를 沮書하고 나아가 所得分配의 不均을衡을 촉진시킬 위험성을 지니고 있다. 따라서 成長初期의 農業궁핍화 政策의 선택 그 自體의 功過는 차치하고라도 向後의 건전한 成長을 위해서는 交易條件의 改善과 함께 農業生産性 增大를 위한 사려 깊은 정책이 필요한 것으로 생각된다.
고관절에 발생한 색소융모 결절성 활액막염의 진단과 치료
오두환,전시현,강창수 계명대학교 의과학연구소 2000 계명의대학술지 Vol.19 No.2
To investigate the clinical characteristics of pigmented villonodular synovitis of the hip and its appropriate treatment modalities. We retrospectively analyzed the clinical symptoms and signs, laboratory data, radiologic findings and methods and results of treatment of 4 patients of which the diagnosis was confirmed microscopically. The most common complaints was pain and a palpable mass was combined in one case. The limitation of joint motion was present in 3 cases and laboratory data were normal in all cases. On plain films, a classic form with large and multiple lucencies was found in 2 cases and a osteoarthritis-like form was found in 2 cases. The operative treatment was performed in all cases. In one case, there was no evidence of recurrent disease at 20 months after synovectomy alone. In 2 cases, patients were treated with total hip replacement combined with synovectomy and there were no evidence of recurrent disease at 27 months and 36 months each other. In one case, the patient had a recurrence at 7 years and 6 months after synovectomy alone and underwent total hip arthroplasty combined with synovectomy. At 4 years and 1 month after reoperation, this patient had a local recurrence and underwent curettage and bone graft. The early diagnosis and treatment of pigmented villonodular synovitis will prevent the further destruction of the hip and the thorough synovectomy will decrease the recurrent rate.