• 한국통신학회논문지
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• 제22권7호
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• pp.1394-1402
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• 1997

In this work, an efficient test algorithm and BIST architeture a for embedded memories are presented. The proposed test algorithm can fully detect stuck-at fault, transition fault, coupling fault. Moreover, the proposed test algorithm can detect nighborhood pattern sensitive fault which could not be detected in previous march test algoarithms. The proposed test algorithm perposed test algorithm performs testing for neghborhood pattern sensitive fault using backgroung data which has been used word-oriented memory testing.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2010년도 춘계학술발표대회
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• pp.717-720
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• 2010

This paper considers the Quality of Service (QoS) provisioning mechanisms for the WDM burst switched ring networks. The loss-sensitive service and the delay-sensitive service are discussed. Considering their different requirements, different QoS provisioning schemes are proposed to provision them respectively. The proposed schemes are evaluated through simulation results.

• 한국전기전자재료학회논문지
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• 제27권9호
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• pp.566-570
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• 2014

Electrode pattern effects on the capacitive humidity sensor were investigated. The fabrication of the capacitive humidity sensor was formed with three steps. The bottom electrode was formed on the silicon substrate with Pt/Ti thin layer by using shadow mask and e-beam evaporator. The photo sensitive polyimide was formed on the bottom electrode by using photolithography process as a humidity sensitive thin film. The upper electrode was formed on the polyimide thin film with Pt/Ti thin layer by using e-beam evaporator and lift-off method. Three electrode patterns, such as circle, square, and triangle pattern, were used and changed the sizes to investigate the effects. The capacitances of the sensors were decreased 622 to 584 pF with the area decreament of patterns 250,000 to $196,250{\mu}m^2$. From these results, a capacitive humidity sensor with photo sensitive polyimide is expected to be applied to a high sensitive humidity sensor.

• 한국컴퓨터정보학회논문지
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• 제13권5호
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• pp.103-110
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• 2008

전자상거래의 발달로 인해 옥션과 같은 쇼핑몰은 효율적인 서비스를 위해 고객의 개인정보를 수집하고 관리하고 있다. 하지만 옥션의 개인정보 유출로 인해 그 피해가 기업이미지 손상뿐만 아니라 유출된 정보주체인 개인까지 피해를 주고 있다. 기관과 기업에서 개인정보를DB에 평문상태로 저장하고, 역할기반 접근제어기술을 이용하여 개인정보를 보호하고 있지만 DB관리자의 권한만 획득하면 옥션과 같이 개인정보가 쉽게 유출된다. 또한 역할기반 접근 제어기술은 정보주체의 민감한 정보에 대한 보호기술로 적합하지 않다. 이 논문에서는 정보 주체가지정한 민감한 정보를 암호화하여 DB에 저장하고, 정보주체의 개인별 정책에 따라 자신의 정보에 대한 접근을 엄격하게 제한하는 개인별 정책 기반의 접근제어 기법을 제안한다. 제안 기법을 통해 DB관리자로부터 안전하고, 개인정보 보호기술인 역할 기반 접근제어의 문제점을 보완하여 정보주체의 자기정보 제어권을 가진다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 춘계학술대회
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• pp.291-292
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• 2018

본 연구는 중국역사영화 '영웅'의 소재로 활용된 건물배경에 대한 관객의 감성 고찰을 목적으로 한다. 본 연구는 감성과 관련된 선행 연구를 통해 건물배경에 적합한 감성어휘를 도출하고 이를 설문형태로 감성을 분석하였다. 연구결과 영화의 건물 배경이 관객에게 감성적인 영향을 줄 수 있으며 중국 전통양식과 문화를 이해하는데 도움을 줄 것이다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 A
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• pp.547-549
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• 2000

This paper develops phase sensitive detector for diagnosis of distribution transformers. And to detect the $tan{\delta}$ more effectively, this paper used phase sensitive detector. The sensor in oil which could be placed inside of the distribution transformer can measures the $tan{\delta}$ in oil. This could be the important factor and information, and it could be used for the basic information for a precise diagnosis. Establishment of the proposed system helps to build the confidence in monitoring of the oil-filled transformers.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2009년도 정보통신설비 학술대회
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• pp.45-48
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• 2009

In this paper, we use the optimization design theory based on the finite element method and implement the optimal design of electromagnetic devices using COMSOL interface. COMSOL is one of the commercial EM software. Shape information for the design optimization is extracted by CAD in EM software. To calculate the shape of optimal design, sensitive analysis is applied to the design processing in MATLAB. To achieve the design objective in this paper, objective function is defined. According to the sensitive analysis based on the finite element method, we change the design variable after the sensitivity of the objective function is computed. To verify the proposed method, the results are compared with the initial design.

• 응용통계연구
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• 제17권2호
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• pp.303-310
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• 2004

본 연구에서는 민감한 모집단에 대한 자료수집 방법으로 직접 질문 방법 인 Black-Box 방법과 간접 질문 방법인 확률화응답기법(RRT)의 결합적 방법을 제시하였고, 층화이중추출방법을 이용하여 모수를 추정하였다. 또한, 주어진 추정량의 효율성을 Mangat과 Singh 추정량과 비교 분석하였다.

• 대한산업공학회지
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• 제32권2호
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• pp.120-125
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• 2006

Since Korean government has implemented the "Number Portability System" in the domestic mobile communications market, mobile communication companies have been striving to hold onto existing customers and at the same time to attract new customers. This paper presents a competing risk model that considers the characteristics of a customer in order to predict the customer's life under the "Number Portability System." Three competing risks considered are pricing policy, quality of communication, and usefulness of service. It was observed that the customers who pay more are less sensitive on pricing policy younger people are less sensitive than older people to the quality of communication and women are more sensitive than men to the degree of usefulness of service. We expect that the result of this study can be used as a guideline for effective management of mobile phone customers under the Number Portability System.

• Communications for Statistical Applications and Methods
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• 제10권1호
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• pp.247-256
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• 2003

In this study, we systemize the theoretical validity for applying RRM to three-stage cluster sampling method and derive the estimate and it's variance of sensitive parameter. We derive the minimum variance form under the optimal values of the subsample sizes when the costs are fixed. Under the some given precision, we obtain the optimal values of the subsample sizes and derive the minimum cost form by using them. We apply the three-stage cluster RRM to field survey and suggest some necessary points for practical use.