• 한국정보통신학회논문지
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• 제6권2호
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• pp.236-247
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• 2002

ATM망에서 큐 서비스 방식에서는 상위 프레임과 하위 프레임을 따로 정의하여 대역폭 할당과 전송 지연 보장을 분리할 수 있기 때문에 종단간 전송한계에서 QoS를 보장 할 수 있는 단순화한 큐 서비스 구현을 제안하였다. 제안한 큐 서비스 방식은 실시간 트래픽과 비실시간 트래픽을 나누어 저장하기 때문 에 연결별 트래픽 조절기 없이도 지연 지터 특성이 개선되었다. 제안된 큐 서비스 방식을 이용하여 연결 수락 제어는 트래픽 왜곡의 영향을 계산할 수 없는 트래픽 왜곡의 영향이 실재로 존재한다는 가정 하에 트래픽 왜곡에 대한 영향에 종단간 지연을 보장함으로 서 연결 수락 가능 범위를 다양한 프레임의 길이에 대해 나타내었으며, 프레임의 길이가 클수록 제안된 큐 서비스 방식의 연결 수 락 범위가 지연 EDD방식과 비교해서 많은 차이를 보이지만 프레임의 길이를 점차 줄여갈수록 연결 수락 가능 범위가 지연 EDD 방식에 근접함을 나타내었다.

• 한국통신학회논문지
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• 제27권5C호
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• pp.445-453
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• 2002

ATM망에서 큐 서비스 방식에서는 상위 프레임과 하위 프레임을 따로 정의하여 대역폭 할당과 전송 지연보장을 분리할 수 있기 때문에 종단간 전송 한계에서 QoS를 보장할 수 있는 단순화한 큐 서비스 방식을 제안하였다. 제안한 큐 서비스 방식은 실시간 트래픽과 비실시간 트래픽을 나누어 저장하기 때문에 연결별 트래픽 조절기 없이도 지연 지터 특성이 개선된다. 제안된 큐 서비스 방식을 이용하여 연결 수락 제어는 트래픽 왜곡의 영향을 계산 할 수 없는 트래픽 왜곡의 영향이 실제로 존재한다는 가정 하에 트래픽 왜곡에 대한 영향에 종단간 지연을 보장함으로서 연결 수락 가능범위를 다양한 프레임의 길이에 대해 나타내었으며, 프레임의 길이가 클수록 제안된 큐 서비스 방식의 연결 수락 범위가 지연 EDD방식과 비교해서 많은 차이를 보이지만 프레임의 길이를 점차 줄여갈수록 연결 수락 가능 범위가 지연 EDD 방식에 근접함을 나타내었다.

• 대한조선학회논문집
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• 제52권5호
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• pp.395-406
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• 2015

The Ballast Water Treatment System was developed to prevent the unintended transport of unwanted organisms from one region to another as demanded by the IMO (International Maritime Organization). Although various types of BWTS in the world have been developed until now and applied to various ships, there has been no systematic basis for its selection and installation. Currently, the system selection and installation are as per ship owner’s suggestion or by easy installation point of view by the shipyard. In order to organize, systemize and solve problems related to the selection and installation of BWTS, a definitive study has been performed to come up with the best alternative to derive value and criteria which were to be met for vessels which are to be equipped with BWTS. Multiple criteria were compared alongside each other during the course of this study. Accordingly an AHP (Analytic Hierarchy Process) analysis method for A, B and C companies were done for container ships with size 10,000 TEU and above. Equipment type for “A” company is “Filter, UV & TiO2” combined type. For “B” company it is “Filter & UV” combined type. Finally for “C” company it is “Electrolysis” type. Henceforth, the results of this study aims to come up with the optimum way to select the best and the most suitable BWTS for a certain vessel.

• 정보보호학회논문지
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• 제27권3호
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• pp.637-651
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• 2017

금융회사가 개인정보를 수집하기 위해서는 법률에 정해진 내용을 소비자에게 명시적으로 알리고 사전 동의를 받도록 되어 있다. 그 결과 금융상품이 복잡해지고 다양해짐에 따라 '개인정보제공 동의서' 내용도 복잡해지고 분량이 많아지게 되었다. 특히 인터넷과 모바일의 경우 화면 크기의 제약으로 글씨가 더 작아지면서 더욱 이해하기가 힘들어졌다. 이것은 개인정보를 수집하는 거의 모든 기업이 비슷한 상황이어서, 서비스를 이용하는 소비자 입장에서는 동의 내용을 이해못한 채 습관적으로 동의하는 모순이 생기고 있다. 본 연구에서는 금융회사 인터넷 홈페이지를 통한 합리적인 개인정보 수집 및 이용 동의 정책 수립 모델을 제시하기 위해 국내외 법제도를 고찰하여 문제점을 도출하고 개선 방안을 제시한다. 또 연구를 통해 선정된 평가요인을 AHP(Analytic Hierarchy Process)방법을 이용하여 의사결정 모델과 공식을 제시하고 검증한다.

• 보건행정학회지
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• 제20권4호
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• pp.97-113
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• 2010

The purpose of this study was to analyze the relationship between the locational characteristics of areas surrounding oriental medicine hospitals and the number of patients who visited study hospitals. Administrative data collected from the annual report of 5 ward offices in Daejeon used to assess the geographical attributes. Two oriental medicine hospitals operated in Daejeon provided data for the number of inpatient and outpatient. Number of patients who visited study hospitals was calculated in each Dong which is the smallest administrative district. The geographical attributes of Daejeon were evaluated by the demographic and economic factors which were assumed to influence the health care demand. Each criterion was measured from each Dong. Weights of factors was calculated by Analytic Hierarchy Process (AHP) method. Evaluation scores which representing the geographical attributes of Dong was computed by multiplying the eight factors and weights. Results showed positive correlation coefficients between the evaluation scores of Dong and the number of patients. One hospital which was more closely located to areas with high evaluation scores had higher number of patients than that of the other hospital. Buffering analysis with varying size support the analysis results. This finding proposed the importance of location for the management of oriental medicine hospitals in a metropolitan city. Applying study model to other cities will enhance the validity of study results.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 1998년도 The 12th Asia Quality Management Symposium* Total Quality Management for Restoring Competitiveness
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• pp.419-428
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• 1998

In this paper, we analyzed two methodologies to evaluate the total quality management activities comparatively. One of them is the traditional scoring system (TSS) by analytic hierarchy process (AHP) and the other is the efficiency measuring system (EMS) by data envelop analysis (DEA), It is demonstrated that the index by TSS and the efficiency index by EMS are not correlated. Also, the efficiency index by EMS in terms of company characteristics such as the size of company and ISO certifications is different from the index by TSS. The result implies that to evaluate the quality activities by EMS is needed as a supplementory methodology.

• 한국산업보건학회지
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• 제20권3호
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• pp.203-215
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• 2010

This study is an overview of toxicities and measurement techniques of ultrafine particles (UFPs), and their exposure controls. UFPs are ubiquitous in many working situations. Exposure to UFPs is possibly causing adverse health symptoms including cardio-respiratory disease to humans. In order to measure exposure levels of airborne UFPs, there are current available measurement guidelines, instruments and other techniques (i.e. contour mapping, control banding). However, these risk assessment techniques including measurement techniques, controls and guidelines are dependent on background levels, metrics (e.g. size, mass, number, surface area, composition), environmental conditions and controls. There are no standardized measurement methods available and no generic and specific occupational exposure standards for UFPs. It is thought that there needs to be more effort to develop Regulations and Exposure Standards for generic UFPs should be based on more exposure data, health surveys, toxicological data and epidemiological data. A carefully considered hierarchy of controls can also reduce the maximum amount of airborne UFPs being emitted from diverse sources in industries.

• JSTS:Journal of Semiconductor Technology and Science
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• 제11권3호
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• pp.207-220
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• 2011

Coarse-grained reconfigurable architecture (CGRA) based embedded systems aims to achieve high system performance with sufficient flexibility to map a variety of applications. However, the CGRA has been considered as prohibitive one due to its significant area/power overhead and performance bottleneck. In this work, I propose reconfigurable multi-array architecture to reduce power/area and enhance performance in configurable embedded systems. The CGRA-based embedded systems that consist of hierarchical configurable computing arrays with varying size and communication speed were examined for multimedia and other applications. Experimental results show that the proposed approach reduces on-chip area by 22%, execution time by up to 72% and reduces power consumption by up to 55% when compared with the conventional CGRA-based architectures.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1998년도 The Third Asian Fuzzy Systems Symposium
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• pp.122-127
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• 1998

This paper suggests an integrated method for discovering knowledge from a large database. Our approach applies an attribute-oriented concept hierarchy ascension technique to extract generalized data from actural data in databases, induction of decision trees to measure the value of information, and knowledge reduction of rough set theory to remove dispensable attributes and attribute values. The integrated algorithm first reduce the size of database for the concept generalization, reduces the number of attributes by way of elimination condition attributes which have little influence on decision attribute, and finally induces simplified decision rules removing the dispensable attribute values by analyzing the dependency relationships among the attributes.

• 한국정밀공학회지
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• 제16권1호통권94호
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• pp.75-86
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• 1999

In the assembly system, a pallet plays an important role of transfer and storage. As products become various, many different pallets are also necessary. Since some of them are redundant, a design of pallet with high flexibility is important. This paper suggests design alternatives, in designing pallets with high flexibility. The purpose of this study is to rationalize assembly process of mid-small size products. Every pallet has suitability values depending on characteristic factors of a product, and this value is determined by using AHP (Analytic Hierarchy Process) technique. As the characteristic factors of a product are changed, the suitability value is also changed. Design alternatives can be found by tracing change of the suitability value, which are based on correlation between the characteristic factors of a product and a pallet element.