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녹동균 세포외막 단백질 백신 CFC-1-101의 안정성 및 면역원성 검토 : 임상 제 Ⅰ/Ⅱa상 시험
장인진,김익상,유경상,임동석,김형기,신상구,장우현,박완제,이나경,정상보,안동호,조양제,안보영,이윤하,김영지,남성우,김현수 대한감염학회 1998 감염 Vol.30 No.3
목적 : 제일제당에서는 녹농균의 세포외막 단밸질을 유효성분으로 하는 백신인 CFC-101을 개발하였으며, 동물시험에서 이 백신의 안전성과 유효성을 입증하였다. 본 연구에서는 이 녹농균 백신의 인체에 대한 안전성과 면역원성을 평가하는 동시에 인체 접종시의 최적 투여 용량을 결정하기 위하여 제 I/Ⅱa상 임상시험을 수행하였다. 방법 : 건강한 성인 남자를 피험자로 선별하여 각 용량군에 백신투여자 6명, 위약투여자 2명을 배정하였다. 백신 투여군은 0.25mg, 0.5mg 또는 1.0mg 용량의 녹농균 백신을 7일 간격으로 3회에 걸쳐 근육주사 하였으며, 위약 투여군에게는 세포외막 단백질을 제외한 동일한 성분을 투여하였다. 백신접종 후 국소적 또는 전신적인 반응의 발생여부를 관찰하고, 혈액시료를 체취하여 백신의 역가와 유효성을 검정하였다. 결과 : 녹농균 백신 CFC-101은 모든 접종자에서 양호한 내약성을 보였다. 또한 0.5mg 과 1.0mg 백신 투여군에서는 100%의 항체양전율을 나타내었다. 생성된 항체는 녹농균 세포외막단백질에 특이성을 보였고, 녹농균 감염에 대해 방어효능이 있었다. 결론 : 이와같은 결과로부터 이 녹농균 백신은 인체에 안전하게 투여할 수 있으며, 높은 항체 생성능으로 감염방어 효능을 보이고 0.5mg과 1.0mg이 최적용량인 것으로 판단되었다. Background : We developed a Pseudomonas aeruginosa outer membrane protein(OMP) vaccine CFC-101, and the prophylactic efficacy of which has been demonstrated in animal models. In order to evaluate the safety and immunogenicity of the P. aeruginosa vaccine, we carried out a phase I/Ⅱa clinical trial in healthy male volunteers. Methods : Groups of eight volunteers, including two placebo subjects, were vaccinated intramuscularly with three doses of 0.25, 0.5 or 1.0 mg of the vaccine at one week intervals. Sings of systemic and local reactions observed after vaccination were recorded for each vaccinee for 5 days. Physical examinations were performed on days 0, 1, 7, 8, 14, 15, 21, and 42, and clinical laboratory tests were done on days 0, 3, and 21. Blood samples for assay of serum antibody levels were obtained up to 42 days after the first vaccination. Results : The vaccine was generally well tolerated by all vaccinees, showing no significant side effects. In the three dosage groups, all vaccinees, except one receiving the 0.25 mg dose, showed significant elevation in serum IgG antibody titers against the vaccine proteins, indicating 100% seroconversion in 0.5 and 1.0 mg groups. The human antibodies induced by the vaccine were specific for P. aeruginosa OMPs, as confirmed by western blot analysis and immunoprecipitation assays. The capacity of the human antisera to enhance opsonophagocytic killing activity by polymorphonuclear leukocytes and to confer protection against P. aeruginosa infections indicates that the antibodies elicited by the vaccine have protective efficacy. Conclusion : We conclude that the P. aeruginosa OMP vaccine is safe and effective for human use and its optimal dose to be 0.5 or 1.0 mg.
南豊祐,韓祥鉉 강남대학교 사회과학연구소 2000 사회과학논총 Vol.9 No.-
본 연구에서는 전자상거래를 뒷받침하는 가장 적합한 물류시스템으로 평가되는 택배업의 본질을 규명하고 외국의 선진업체들과 국내 택배업체의 전자상거래 배송현황을 중심으로 전자상거래시대에 국내 택배업의 경쟁력 강화를 위한 물류전략을 구체적으로 제시하였다. 본 연구에서 지적된 대로 국내택배업계는 선진업체들과 비교하여 규모도 적고 자본도 영세할 뿐 아니라 집하 및 배송을 위한 물류사업기반이 부족하고 정보화 및 종합물류서비스 체계의 구축이 미흡하여 대 고객서비스의 질이 하락하고 있다. 이에 국내택배업체들은 물류정보시스템기반의 확충, 인터넷쇼핑몰과의 제휴를 통한 아웃소싱의 강화, 물류시설공동화와 배송시스템의 선진화, 차별적 전문서비스의 고도화, 그리고 철저한 사후보장 서비스의 제공 등 전자상거래 지원을 위한 새로운 물류전략을 수립하여야 할 것이다.
전자상거래시대의 신무역결제방식에 관한 연구 : TradeCard 시스템을 중심으로
南豊祐,韓祥鉉 강남대학교 사회과학연구소 2000 사회과학논총 Vol.10 No.-
TradeCard is a B2B(business-to-business) e-commerce infrastructure that enables buyers and sellers to conduct and settle international trade transactions securely over the Internet. By aggregating buyers, sellers and disparate trade service previders, TradeCard solution automates and streamlines existing international trade transaction processes, which are complex, paper-based, time-consuming and expensive. Objective of TradeCard is to provide a secure, reliable, cost-effective and user-friendly solution for conducting and settling international trade transactions. TradeCard Inc, an outline international trade transaction network for buyers and sellers, officially announced the launch of the TradeCard network at August 2, 2000 in Korea. The system will give Koreans a fundamentally new way of conducting their international trade business. TradeCard will provide the Korean business community with the tools they need to initiate, conduct and complete international trade transactions securely over the Internet. This paper analyzes how electronic commerce will be affected by the computer networks, with particular attention to existing international frameworks for payment systems based on Documentary credit, investigates the reviews of TradeCard by Electronic Message and the various problems which come to application of TradeCard.
貿易去來에서 貨換信用狀의 取消不能性 强化에 따른 實務去來上의 諸留意點 : 第5次 信用狀統一規則 第6條를 中心으로 based on UCP 500 Article 6
南豊祐,韓祥鉉 韓日經商學會 1997 韓日經商論集 Vol.13 No.-
While there are various methods of settling for goods in the export trade, one the most common methods of payment is the Documentary Credits which is a facility provided by banks in order to facilitate international trade transactions. In the Types of documentary credits specially, an irrevocable documentary credit constitutes a definite undertaking of the issuing bank is given the beneficary greater assurance of payment, and is the most frequent methods of payment in international foreign trade transactions. But, so far, in the absence of "revocable" or "irrevocable" indication in credits, the credits shall be deemed to be revocable. But this revocability impaired the reliability of the credit and forced courts attempting to protect third party reliance to search for irrevocability in remove places or in language in the credits. So, in 1993 revision of the UCP 500(Uniform Customs and Practice for Documentary Credits) which are sponsored by ICC(International Chamber fo Commerce), Sub-Article 6 (c) of UCP 500 change the notation of a credit being revocable when no indication is given. The word "revocable" has been changed to "irrevocable". Of course, practically, since revocable credits are the exception rather than the norm, the new rule (UCP 500) imposes no hardship on the Applicant or the Issuer. It is expected that this requirement for an express indication on revocability, in the instructions to issue and in the credit itself, will act as warning to all of the parties to the credit transactions. So, if it is their intent not to establish an irrevocable credit, they must be clear in their instructions and explicitly define the credits as "revocable".
퍼지 제어기를 이용한 전압모델 방식의 유도전동기 속도 센서리스 벡터제어
남상현,한경희,전기영,조정민,이승환 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-
For high performance an drives, the speed sensorless vector control and a speed control algorithm base on the Fuzzy PI controller have received increasing attention. A Fuzzy PI controller is used for robust and fast speed control and space vector modulation method is used for PWM wave generation in this proposed system. The computer simulation results show that the proposed controller are more excellent control characteristics than conventional PI controller in transient-state and steady-state response.
玄淸男,李相勳 홍익대학교 산업기술연구소 2002 産業技術 Vol.12 No.-
In this study, the heat transfer coefficient and heat stress and the flow characteristics according to the shape of pipe interior in Plate Heat Exchanger is studied by a numerical method using Design-Space. One of the most common heat exchangers that is mainly attached in vehicles is studied. Analysis is performed by comparing the results for plate heat exchangers with those for cylinder heat exchangers. In order to increase the effectiveness of heat exchangers, thermal conductiom, material, and thermal stresses in plate heat exchangers are investigated.