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도시철도 지하터널용 전기집진기 개발을 위한 집진극 형상에 대한 기초연구
구태용,김용민,홍정희,황정호 한국입자에어로졸학회 2013 Particle and Aerosol Research Vol.9 No.2
In this study, the characteristics of turbulent flow and collection efficiency for an one-stage electrostatic precipitator(ESP) with slit type collecting electrode for urban railway underground tunnels were obtained using computational fluid dynamics(CFD) commercial code FLUENT 6.3 and lab-scale experiments. The electrostatic precipitator was operated under high gas velocity(3~12m/s). Five different designs of collecting electrode, flat plate-type and a slit-type of 3mm, 5mm, 7mm and 10mm slit width and four various gas velocity(3, 6, 9, and 12m/s) were used and applied. A standard k-ℇ model in CFD commercial code FLUENT 6.3 was used for flow simulation. The flow simulation results showed that the turbulent intensity of flat plate-type was higher than slit-type under all gas velocity conditions and also the turbulent intensity of flat plate-type was increased continuously, but in case of slit-type was maintained at constant range. And, the turbulent intensity was decreased according to increasing of slit width. The experimental results showed that the collection efficiency of slit-type was higher than flat plate-type under all gas velocity conditions. And, over 6m/s gas velocity condition, the collection efficiency of 5mm and 7mm was highest, when compared to 3mm and 10mm.
구태용,최재홍,오영진,류창완 商志大學校 生産技術硏究所 2002 生産技術論叢 Vol.11 No.-
This study attempts to show the structure of internet micro payment system and the application of case study. Major findings of case study can be summarized as follows : the key success factors of DACOM Cyberpass, a leading firm of the internet micro payment system are securing market through DACOM's leading market image, pursuing strategic alliance with industry key players on and off-line, worldwide distribution channels, accumulated knowhow of international telecommunications market. However, further study should to be done with more relevant case studies.
품질경영시스템(ISO 9001/00)의 인증성과에 관한 실증연구
김인호,구태용,최걸성 한국산업경영시스템학회 2006 한국산업경영시스템학회 학술대회 Vol.2006 No.춘계
A considerable number of corporations seem to be deeply interested in Quality Management as a tool to improve competitive advantage of their products. Especially, under dynamic management circumstances recently, acquisition of ISO (International Organization for Standardization) certification for domestic corporations could have great impact on outcomes, and it becomes even more important for corporations depended largely on exports. However, it is not simply acquisition of ISO certification itself that gives dominant competitive advantage, and effects of acquiring ISO certification on every corporation are different. On this study, I would like to examine how purpose and goal for ISO 9000 influence on outcomes later on, and how CEO’s concern and the corporation’s capability could change the outcomes after all. As a result of the study, importation of ISO 9000 for the purpose of ensuring competitive advantage of products, standardization of quality management system, and benefits in the short run showed a positive affects on outcomes. Also, the relationship between purpose of acquiring ISO 9000 and outcomes became more connected as the manager’s interest increased, and a greater capability of a corporation caused a greater effect on improvement of productivity and image of the corporation.
최재홍,구태용,김철,이건우,오영진,류창완 商志大學校 生産技術硏究所 2002 生産技術論叢 Vol.11 No.-
The electronic money and electronic payment system is the corporation of all information technology and social infrastructures. This consists of harmony between information, security, verification, laws and organizations. It came from the unit electronic cash at the beginning, and has been evolved to the electronic payment system. At the point of view of producing money, it could carry the maximized benefit. Therefore, the competition and cooperation (between region, nation and company) occurred at the same time. We will discuss the direction of new electronic money evolution with examination of various ways.
김인호,구태용 한국벤처창업학회 2016 벤처창업연구 Vol.11 No.2
To provide the baseline for pricing, this paper proposes pricing-by-rating (PBR) as pricing model at micro-foundations level that can work as the baseline for all pricing models as well as an assessment criterion of business model in all circumstances. It sets up firstly WTP (willingness to pay/purchase) model from explicit needs and develops PBR based on the ordinal scale of the difference between the WTP and the WTS (willingness to supply/sell) by comparing individually the corresponding element/component of a firm’s actual marketing mix 4P with that of the best SPEC (solution, price indicator by WTP, encouragement, channel) as an ideal 4P a customer expects and also by comparing the interaction between the 4P and the best SPEC as a whole collectively. And through illustrations it shows its applicability to evaluating business model in practice and finally asserts that PBR works as the baseline for pricing policy and as a criterion of business model evaluation in any circumstances.
소액 전자결제시스템 수용의지에 관한 실증연구 : 시스템 특성, 거래비용과 제공업체를 중심으로
정석균,류창완,구태용 한국산업경영시스템학회 2010 한국산업경영시스템학회지 Vol.33 No.4
This paper analyzes the main factors affecting user selection of a small-sum electronic payment system using survey data of 396 users. Several findings emerge. First, users consider three pillars and eight factors in adopting a new system : system feature
결제방식 및 업종에 따른 전자결제시스템의 수용의지에 관한 연구
김인호,류창완,구태용 한국산업경영시스템학회 2008 한국산업경영시스템학회 학술대회 Vol.2008 No.추계
본 연구는 전자결제시스템과 관련한 기존 연구를 바탕으로 소액 전자결제시스템의 도입과 관련하여 사용자가 인지하는 도입 결정요인이 무엇인지를 탐색하고, 결제시스템에 대한 수용(채택)의지 강도(정도)가 어떤 요인에 의해 어떻게 좌우되는지, 그리고 결제방식과 업종에 따라서 어떤 요인들이 수용의지 강도에 가장 영향을 크게 미치는지를 실증적으로 규명하고자 한 것이다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 소액 전자결제시스템의 도입 결정요인으로 시스템특성, 거래비용, 재무능력 등 세 가지 요인을 확인하였다. 그리고 시스템의 특성요인으로는 시스템의 안정성․보안성․유연성 등이, 거래비용 요인으로는 결제대행수수료․정산주기 등이, 결제시스템 제공자의 재무능력에는 재무구조의 안정성․리스크 관리능력․자금 조달능력 등이 도출되었다. 둘째, 상기 여덟 가지의 도입 결정요인들이 수용의지 강도에 모두 정(+)의 효과를 주는 관계가 있음을 확인하였는데, 이중에서 결제시스템 수용의지 강도에 공통적으로 가장 지대하게 영향을 미치는 요인은 결제시스템 제공사업자의 재무구조 안정성으로 나타났다. 셋째, 본 연구의 핵심이라고 볼 수 있는 결제방식과 업종에 따라 소액 전자결제시스템의 도입 결정요인과 수용의지 강도와의 인과관계가 어떻게 다른가를 규명하였는데, 유・무선 전화결제의 경우 신속한 정산주기가, 신용카드․계좌이체 결제의 경우 시스템 안정성이, 선불지급수단의 경우 보안성이 결제시스템 수용의지 강도에 가장 지대한 영향을 미치는 것으로 나타났다.
신연 금속판 술기를 이용한 원위 요골 골절의치료 - 2례 보고 -
강호정,한대용,구태용 대한골절학회 1994 대한골절학회지 Vol.7 No.2
The comminuted intraarticular fracture of the distal radius requires early, accurate reduction of the articular surfaces and sustained restoration of anatomic position. The most commonly employed methods are pins and plaster, external fixation, percutaneous pinning and open reduction and internal fixation. There are pitfalls, advantages and disadvantages inherent in each method. Open reduction and internal fixation has been condemned for some time without any controlled series documention its ineffectiveness. Anatomic open reduction and internal fixation with early mobilization, however, are recommanded for nearly every other intraarticular fracture. Two cases of displaced intraarticular fracture of distal radius was managed with distraction plating technique. We will present these cases in detail.