• 대한치과보철학회지
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• 제54권4호
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• pp.379-386
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• 2016

목적: 본 연구에서는 전통적 인상채득과 디지털 인상채득을 모두 경험한 환자들의 만족도를 조사하여 다양한 항목에 대하여 비교 분석하고자 하였다. 재료 및 방법: 구강 내 디지털 인상채득의 방법을 사용하는 5개의 치과병원에서, 보철 치료를 위해 기존의 인상재를 이용한 방법과 디지털 인상채득을 모두 경험한 만 20세 이상의 성인 환자 170명을 대상으로, 2015년 10월부터 2016년 4월까지 설문조사를 실시하였다. 총128부의 설문지를 분석 자료로 이용하였으며, 빈도분석, 다중응답 빈도분석, 기술통계, 비모수 검정, 교차 분석을 시행하였고, 유의수준은 0.05로 설정하였다. 결과: 디지털 인상채득의 이유는 '임플란트치료'(43.8%), '크라운치료'(30.5%), '인레이치료'(15.6%) 순서로 나타났다. 전통적 인상채득의 평균 만족도보다 디지털 인상채득의 평균 만족도가 유의하게 더 높았다 (P<.05). 재선택하고 싶은 인상채득 방법으로는 전통적 인상채득(11.7%) 보다 디지털 인상채득(60.2%)이 더 높게 나타났다. 디지털 인상채득을 재선택한 이유로는 '구토반사가 없어서'(35.1%), '3D디지털 스캔이라 신뢰가 가서'(33.8%), '시간이짧아서'(33.8%) 순으로 나타났다. 결론: 환자 만족도 및 다시 선택하고 싶은 인상채득의 방법으로 전통적 인상채득 보다 디지털 인상채득의 선택이 더 높게 나타났다.

• 에너지공학
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• 제11권1호
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• pp.47-58
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• 2002

본 논문은 민자발전소의 회피 발전비용을 계산하는 새로운 방법을 제안하였다. 제안된 방법은 기존의 부하감소법과 달리 민자발전소의 고장정지율과 경제적 투입순서를 정확히 고려할 수가 있다. 그러므로 더욱 정확한 회피 발전비용을 계산할 수가 있다. 또한 확률적 시뮬레이션을 수행하여 계산하므로 민자발전소의 비용에 대한 영향도 정확히 고려할 수가 있다. 부가적으로 한 개 이상의 민자발전소가 참여하였을 때에 회피 발전비용을 할당하는 방법도 제안하였다. 다양한 사례연구를 통해 제안한 방법의 결과를 분석하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 추계학술대회 논문집 학회본부 A
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• pp.39-42
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• 2000

In stressed power system, due to the presence of increased nonlinearity and the existence of nonlinear modal interactions, there exist some limitations to the use of conventional linear system theory to identify the optimum sites for controller. This paper proposes an approach to identify the optimum sites for controller using the method of normal forms. In this paper nonlinear participation factor and coupling factor are proposed as a measures of identification of optimum sites for controller and a selection procedure is also proposed. The proposed procedure is applied to the 10-generator New England System and the KEPCO System in the year of 2010 to illustrate its capabilities.

• 한국항공운항학회지
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• 제22권3호
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• pp.82-86
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• 2014

Modern Air Traffic Management has been shifted from the conventional vector- based clearances to trajectory based operations (TBO) concept which utilizes four-dimensional trajectory based on the internationally interoperable information using Globally Unique Flight Identifier (GUFI). This study reviews the development for TBO-related standards and Flight Information Exchange Model (FIXM), which has been discussed by the ICAO Air Traffic Management Requirements and Performance Panel (ATMRPP). In addition, plans for the next step with TBO and the Republic of Korea's participation on the Mini-Global Demonstration were also introduced.

• 한국문헌정보학회지
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• 제45권2호
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• pp.41-60
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• 2011

The use of a practice perspective in the analysis of information literacy represents a shift in attention towards the enactment of information literacy as a social practice, and away from the information skills approach that has dominated information literacy research and education. The sociocultural perspective that underpins a practice-oriented approach highlights the role of practice and co-participation of the community in shaping the production, reproduction and circulation of knowledge, including knowledge about the appropriateness of information skills in relation to the context in which the skills are practised. This emerging view contrasts with the conventional approach to information literacy that has focused on the information skills of individuals as something that can be learned and transferred independently of context. This paper explores two questions: what is information literacy and, how does it happen? It then goes on to identify the implications of this approach for librarians and researchers.

• 대한전기학회논문지:전력기술부문A
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• 제53권4호
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• pp.227-233
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• 2004

In stressed power system due to the presence of increased nonlinearity and the existence of nonlinear modal interactions. there exist some limitations to the use of conventional linear system theory to identify the optimum sites for a controller. This paper suggests an approach based on the method of normal forms to identify the optimum sites for controllers with incorporating the nonlinear interaction . In this paper, nonlinear participation factors and coupling factors are proposed as measures of the nonlinear interactions, and identification procedure of optimum sites for a controller is also proposed. The proposed procedure is applied to the 10-generator New England System and the KEPCO System in the year of 2010, and the results illustrate its capabilities.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
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• 제53권4호
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• pp.227-227
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• 2004

In stressed power system due to the presence of increased nonlinearity and the existence of nonlinear modal interactions. there exist some limitations to the use of conventional linear system theory to identify the optimum sites for a controller. This paper suggests an approach based on the method of normal forms to identify the optimum sites for controllers with incorporating the nonlinear interaction . In this paper, nonlinear participation factors and coupling factors are proposed as measures of the nonlinear interactions, and identification procedure of optimum sites for a controller is also proposed. The proposed procedure is applied to the 10-generator New England System and the KEPCO System in the year of 2010, and the results illustrate its capabilities.

• International Journal of Computer Science & Network Security
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• 제21권3호
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• pp.165-171
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• 2021

Vehicular Ad hoc Network (VANET) is an extension paradigm of moving vehicles to communicate with wireless transmission devices within a certain geographical limit without any fixed infrastructure. The vehicles have most important participation in this model is usually positioned quite dimly within the certain radio range. Fuzzy based multi-hop broadcast protocol is better than conventional message dissemination techniques in high-mobility VANETs, is proposed in this research work. Generally, in a transmission range the existing number of nodes is obstacle for rebroadcasting that can be improved by reducing number of intermediate forwarding points. The proposed protocol stresses on transmission of emergency message projection by utilization subset of surrounding nodes with consideration of three metrics: inter-vehicle distance, node density and signal strength. The proposed protocol is fuzzy MHB. The method assessment is accomplished in OMNeT++, SUMO and MATLAB environment to prove the efficiency of it.

• 한국조경학회지
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• 제30권1호
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• pp.44-51
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• 2002

The objective of this project is to improve the environment of the estuary dike on the Youngsan-River through Re-landscaping. An estuary dike of the Youngsan-River, the largest in the Orient, was constructed in 1981 and connects Mokpo City and Youngam-Gun province. Twenty years ago, when this dike was completed, this place was one of the famous tourist attractions of Korea. It symbolized the development and growth of Korea. But this dike at present is only a dreary sight as a huge concrete construction element. Therefore, a wall painting on the estuary dike was planned to improve this image. The site, an estuary dike of the Youngsan-River, is located in Mokpo City and its length is about 1,360m. The planning focus of this re-landscaping, which is a proposed improvement design through the analysis of characteristics and problems in conventional facilities, is as follows: (1) Introduction of a wall painting that is a symbol of the sea and river (by the creation of an illusion), (2) Production of the wall painting which is under consideration to create a friendly atmosphere of the circumference view and (3) Preparation of a design to establish an approach to the waterfront. By following these steps, an estuary dike can function as a tourist attractions and can be transformed in to cultural space for civilian. This project is good example of environment design that is completed with the regional residents participation through community input in the planning and initiation of a wall painting. The concept of environment design which involves the residents participation and re-landscaping in Korea has not been established up to now on. However, as this projects has proven, consideration for regional residents is a very important factor for the administrative office and planing specialist to address. In the future, it will have a direct influence on the development of design planning. If the establishment of space that can be accepted by residents with love, affection and self-confidence is possible, environment design in which residents participate actively, can be realized.

• 환경정책연구
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• 제9권2호
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• pp.57-81
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• 2010

최근 임금 인상과 고용증대에 중점을 두어 온 종래의 노동조합 활동의 영역이 환경보호와 빈곤퇴치와 같은 사회 현안으로 확대되면서 노동조합의 적극적인 사회 참여가 주목을 받고 있다. 이는 노동조합이 새로운 사회 문제에 고유의 단체교섭력을 바탕으로 그 책임을 담당하고 긍정적인 역할을 할 수 있는 경제주체로 인식되고 있기 때문이다. 본 논문은 미시적 경제 분석모형을 통하여 노동조합 운동이 지구 환경문제와 같은 사회적 이슈에도 기여할 수 있음을 설명한다. 국제 과점 무역 이론을 바탕으로 정부의 오염배출규제 정책 수립과정에서 기업과 노동조합이 자신들의 이익에 따른 전략적 선택을 추구하여 규제 정책 입안에 영향력을 행사하는 주인-대리인 모형을 분석한다. 이 분석으로부터 노동조합의 단체교섭력과 국제적 협력이 전지구적 배출오염을 완화하며 사회후생을 증진하는데 중요한 요인임을 확인하였으며, 이것은 WILL 2006에서 논의된 환경문제 완화를 위한 노동조합의 참여와 협력을 요청하는데 긍정적인 논거로서 제시될 수 있을 것이다.