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말초성 안면신경마비에 대한 수화조절법과 SBV약침치료의 효능비교
이창환,구지영,이유환,박정아,장경전,송춘호,김철홍,윤현민 대한침구의학회 2011 대한침구의학회지 Vol.28 No.4
Objectives : This study was designed to compare the effect between method of regulating ascending kidney water and descending heart fire and sweet bee venom pharmacopuncture on peripheral facial paralysis. Methods : We investigated 30 cases of patient with peripheral facial paralysis who visited at Dept. of Acupuncture & Moxibustion, of Oriental Medicine Dong-eui University from November 29, 2010 to May 15, 2011. Subjects were divided randomly into two groups, group A and group B. We applied method of regulating ascending kidney water and descending heart fire twice or three times a week for group A and sweet bee venom pharmacopuncture with same cycle for group B. We measured the effect of treatment to each group five times by using Yanagihara’s unweighed grading system. at first examination, after 1 week, 2 weeks, 3 weeks, and 4 weeks. Results : Both groups showed significant improvement in Yanagihara’s scores. And group A was improved better than group B for two weeks from the first examination significantly. But after one week from then, the Yanagihara’s scores of group B were higher than those of group A significantly. There were no significant differences during other period. Conclusions : Method of regulating ascending kidney water and descending heart fire is more effective than sweet bee venom pharmacopuncture on peripheral facial paralysis during acute period. And after acute period, sweet bee venom pharmacopuncture is more effective than method of regulating ascending kidney water and descending heart fire.
외상판매 계약과 물량할인 계약을 통한 공급망 협력 방안
이창환,임재익 한국경영과학회 2006 韓國經營科學會誌 Vol.31 No.1
Consider a supply chain in which a vendor supplies a product to a buyer. We assume that the buyer’s and vendor’s inventory cost structures are different, resulting in differences in inventory order/delivery cycle times. Here, if one party insists on its individually optimal order/delivery quantity, the other party will suffer from mismatches in cycle times. Under this scenario, coordination contracts that make use of either a Net Term/Twoparts Term Trade Credit or a Quantity Discount are designed to align individually optimal order quantities. We compare and analyze the performances of these contracts. The focus of the comparison is the ability of contracts to generate a lower cost for the supply chain. We show that a Trade Credit policy can be effectively used to coordinate a supply chain. In many cases it will result in a lower supply chain cost compared to that achieved by using a Quantitative Discount policy.
이창환,김동우,김성환,변종훈,어호용,김용흔 대한내과학회 1986 대한내과학회지 Vol.31 No.3
We have experienced a case of massive splenomegaly which showed hypersplenism in a 53- year-old lady. The cause was obscure after preoperative diagnostic work-ups. Exploratory laparotomy with splenectomy wedge biopsy of liver, and lymph node biopsy was performed for the diagnostic and therapeutic purpose. There were no evidences suggesting for malignant lymphoma, myelofibrosis with myeloid metaplasia, storage diseases, or tuberculosis. We have observed her post-operative course for over two years. No evidence of disease progression have been found. We have cautiously concluded that her illness was so-called primary hypersplenism.
이창환,Lee, Chang-Hwan 한국정보처리학회 1999 정보처리논문지 Vol.6 No.2
Inheritance reasoning has been widely used in the area of common sense reasoning in artificial intelligence. Although many inheritance reasoners have been proposed in artificial intelligence literature, most previous reasoning systems are lack of clear semantics, thus sometimes provide anomalous conclusions. In this paper, we describe a set-oriented inheritance reasoner and propose a method of resolving conflicts with clear semantics of defeasible rules. The semantics of default rule is provided by statistical analysis of $\chi$ method, and likelihood of rule is computed based on the evidence in the past. Two basic rules, specificity and generality, are defined to resolve conflicts effectively in the process of reasoning. We show that the mutual tradeoff between specificity and generality 추 prevent many anomalous results from occurring in traditional inheritance reasoners. An algorithm is provided. and some typical examples are given to show how the specificity/generality rules resolve conflicts effectively in inheritance reasoning.