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고영종,이교범 전력전자학회 2010 JOURNAL OF POWER ELECTRONICS Vol.10 No.6
In this paper, a fault diagnosis method based on fuzzy logic for the three-parallel power converter in a wind turbine system is presented. The method can not only detect both open and short faults but can also identify faulty switching devices without additional voltage sensors or an analysis modeling of the system. The location of a faulty switch can be indicated by six-patterns of a stator current vector and the fault switching device detection is achieved by analyzing the current vector. A fault tolerant algorithm is also presented to maintain proper performance under faulty conditions. The reliability of the proposed fault detection technique has been proven by simulations and experiments with a 10kW simulator.
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高榮鐘 홍익대학교 산업기술연구소 1999 産業技術 Vol.9 No.-
Tourism can make a substantial contribution to the economic and social development of many countries. Tourism development should be consciously and orderly undertaken and carefully planned as part of the national development effort. Care should be taken to identify the precise tourism product, or products, which the country wishes to develop. The tourism product includes not only facilities within the destination, but also advertising and transportation. Effort should be devoted to building up local competence in the planning stage. Moreover, host populations should be actively consulted and involved in tourism plans for their areas. For example, they should and have a voice in determining the rate of tourism growth, the types of tourists and investors to be encouraged, and the type of overall development suitable for the community. This participation in tourism planning encourages and strengthens local and community groups. Although such local participation may seem to delay development, it can ultimately result in much sounder outcomes for the local community, the nation and tourists. Resources should be provided to local authorities and other community groups to assist them in playing these roles. Such resources include financial support, technical assistance, and organizational support.
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高榮鐘 홍익대학교 산업기술연구소 2001 産業技術 Vol.11 No.-
Regional planning and tourism development both entails numerous processes and activities in the conscious planning, financing, developing, and marketing of a destination to attract visitors. The travel industry can bring forth great benefits in both host community and local government. But through accepting the socioeconomic effects of tourism, still we have many difficulties in grasping clearly the degree of such effects and relationships. Regional tourism development should aim at providing a framework for raising the living standard of the residents through the economic benefits of tourism. The tourism development program must be consistent with the cultural, social, and economic philosophy of the local government and the people of the host community or regions. Further tourism development must by systematically planned on the basis of market research and feasibility studies. The scope of the local government program will vary according to the situation and requirements of the region concerned. Today, as social, cultural, and environmental questions take on greater weight because of public concern, planners are seeking better tools to evaluate these impacts as well. The need for comprehensive cost and benefit information is self-evident. The host community or region in supporting tourism as an economic activity must be able to look at tourism from a balanced perspective and, in planning for the future, objectively weigh known or anticipated gains against anticipated risks.
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Murine Macrophage RAW 264.7 세포에서 구실잣밤나무 추출물의 항염증 효과
고영종,송상목,현우철,양수경,송창길,이동선,윤원종 한국자원식물학회 2014 한국자원식물학회지 Vol.27 No.5
This study describes a preliminary evaluation of the anti-inflammatory activity of Castanopsis cuspidata extracts. C. cuspidata was extracted using 80% ethanol and then fractionated sequentially with n-hexane, dichloromethane, ethylacetate, and butanol. To screen for anti-inflammatory agents effectively, we first examined the inhibitory effect of the C. cuspidata extracts on the production of pro-inflammatory factors and cytokines stimulated with lipopolysaccharide. In addition, we examined the inhibitory effect of C. cuspidata extracts on pro-inflammatory mediators (NO, iNOS, COX-2) in murine macrophage RAW 264.7 cells. The amounts of protein levels were determined by immunoblotting. Of the sequential solvent fractions of C. cuspidata, the n‑hexane, dichloromethane and ethylacetate fractions inhibited the mRNA expression of pro-inflammatory cytokines (IL-1β and IL-6), production of NO, and the protein level of iNOS and COX-2. These results suggest that C. cuspidata may have significant effects on inflammatory factors and may be provided as a possible anti-inflammatory therapeutic plant. 본 연구는 구실잣밤나무(C. cuspidate) 잎 추출물의 항염증활성이 염증성 매개인자 생성 저해 및 염증성 사이토카인의 억제와 관련이 있을 것으로 예상되어짐에 따라, 구실잣밤나무를대상으로 80% 에탄올를 가지고 추출한 후 추출물을 극성에 따라 순차적으로 용매분획을 실시하여, 구실잣밤나무 80% 에탄올 추출물 및 용매분획물들이 염증반응의 주체가 되는 대식세포 계열인 RAW 264.7 세포에서 LPS로 유도된 NO의 생성억제효과, 그리고 iNOS와 COX-2의 mRNA와 단백질 발현 억제효과 및 IL-6와 IL-1β와 같은 염증성 사이토카인 생성 억제효과등을 알아보았다. 대식세포 계열인 RAW 264.7 세포에 LPS로자극을 주고 구실잣밤나무 80% 에탄올 추출물 및 분획물을 처리하여 확인해본 결과, 헥산, 디클로로메탄 및 에틸아세테이트분획물에서 NO의 생성억제 효과가 강하게 나타났으며, 헥산과디클로로메탄 분획물에서는 iNOS와 COX-2 생성 억제 효과가다른 분획물에 비해 강하게 나타났으며 염증성 사이토카인 생성 억제 효능도 80% 에탄올 추출물 및 분획물들이 다소 차이는있었지만 헥산과 디클로로메탄 분획물에서 IL-6와 IL-1β에서생성억제 효과가 나타났다. 이러한 결과는 구실잣밤나무 잎에서 유효성분 추출을 통한 항염증 물질의 연구 또는 예방하거나치료할 수 있는 염증 억제 성분의 분리 및 그 작용기전 연구에중요한 기초 자료가 될 것이라 사료된다. 또한 구실잣밤나무 추출물로부터 염증억제 성분을 도출하고자 활성분획인 디클로로메탄 분획물에 대하여 활성성분의 분리가 진행 중이다.
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觀光開發의 目標設定을 위한 觀光經濟主體別 最適化方案 硏究
高榮鐘 홍익대학교 산업기술연구소 1994 産業技術 Vol.4 No.-
It may be out of doubt that the tourism industry can bring forth great benefits in both host community and government. But through accepting the socio-economic effects of tourism. still we have many difficulties in grasping clearly the degree of such effects and relationships. Perhaps it is the right reason why at the level of local as well as national dimension the economic research and study should be sufficiently made about the effects of tourism. Therefore the problem of optimization which is the main theme in this article is an attempt to explain through the concept of utility how the demands of each group.
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국내 종합병원의 공용공간 구성의 디자인 테마와 디자인 컨셉에 관한 연구
고영종,서제성,이정만 한국의료복지시설학회 2001 의료·복지 건축 Vol.7 No.1
Architectural design of general hospitals is progressing in the aspects of themes and concepts of design. This study aims to develope an overview of communal space design in general hospitals by analysing design existing hospitals are summariged for the result of this analysis, and concentration / distribution of communal spaces and hospital communications within communal spaces are included in the analysis.
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