• 한국산학기술학회논문지
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• 제12권2호
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• pp.581-587
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• 2011

계수형 데이터를 이용하여 신뢰도를 추정하는 방법은 원자력 설비, 의약품, 우주발사체 등과 같은 다양한 시스템의 신뢰도 평가에 사용되고 있다. 본 논문은 모수 추정법을 포함하여 문헌에 공개된 신뢰도 추정방법에 대한 샘플 수 및 샘플링 시점 수 변화에 대한 정확성의 민감도를 분석하고 비교한 결과를 제시한다. 또한 민감도 분석 결과를 이용하여 각 추정 방법의 정확성을 향상시키기 위한 방안을 제시하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 B
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• pp.546-549
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• 1995

Recently, electric utility is facing substantially new stream of business environment, such as pressure of business restructuring, competition with private IPPs, diversification of supply-side and demand-side resource options, environmental externalities and uncertainties. Integrated resource planning(IRP) is very useful and powerful approach for solving complex and diversified electricity supply and demand problems. This paper presents a standardized IRP procedure using multi-attribute decision analysis approach. The selection of the most desirable plan is based on multi-attribute trade-off/risk analysis method and score ranking method. As a case study, 50 plans with 12 scenarios are analyzed.

• 수산경영론집
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• 제54권3호
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• pp.17-28
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• 2023

In this study, a conjoint analysis was conducted to derive a combination of fishing quota management system by fish species preferred by fishermen. In the analysis, detailed levels were set according to each attribute of the system. For analysis, this study conducted a design question survey for conjoint analysis on 303 fishermen engaged in fishing activities in the offshore and coastal sea. The Conjoint analysis was conducted on all fishermen, offshore fishermen and coastal fishermen. In addition, an analysis was conducted on TAC system participants and non-TAC system participants, and the targets were classified for comparison according to the characteristics of fishermen. Fishermen's preference for the system confirmed for six attribute ("catching fish even if there is no fishing quota", "how to allocate fishing quota", "fishing quota management agency", "upper limit of fishing quota," "Possibility of Trading in the Fishing Quota", and "Application of Other Regulations.") and the detailed level of each attribute. As a result of the analysis of the importance of attributes, fishermen thought that "fishing quota management agency (24.1%)" was very important, and "catching fish even if there is no fishing quota (23.9%)" and "how to allocate fishing quotas (22.9%)" were also given some importance.

• Spatial Information Research
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• 제10권2호
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• pp.185-199
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• 2002

본 연구에서는 가변적 공간 단위의 문제를 고려한 시공간 자료 분석 방법을 탐색하는 것을 목적으로 하였다. 기존의 시계열 연구에서는 행정 구역 신설이나 경계 변동같은 공간 단위(areal unit)의 가변성을 제대로 반영하지 못했기 때문에 속성 자료와 공간 자료의 불부합 현상이 있었다. 지역의 공간적 특성과 시공간적 변화를 지가 변동분석을 통하여 살펴보기 위해서는 분석 공간 단위의 가변성에 영향을 받지 않도록 개별적인 정보를 유지할 수 있는 시공간 데이터베이스를 구축하는 것이 필요하다. 이 연구에서는 기본 격자로 공간 단위를 구성함으로써 분석 기준 시점의 속성 자료와 공간자료를 일치시킬 수 있었기 때문에 ‘가변적 공간 단위의 문제’를 보완할 수 있었다.

• 한국생활과학회지
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• 제23권2호
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• pp.303-316
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• 2014

This study analyzed the effects of price perception and product attributes on brand loyalty and repurchase intention, and compared the differences in high- and low-priced cosmetic brands. Data were collected from female consumers in their 20s to 40s and a total of 411 responses were used for the final analysis. Findings were as follows. First, when comparing high- and low-priced brands, personal attribute and experiential attribute among cosmetic attributes, brand loyalty, and repurchase intention of high-priced showed the higher mean scores than those of low-priced. Second, all of three cosmetic attributes and P-Q/prestige were significant for high-priced brand loyalty, while experiential attribute, personal attribute, P-Q/prestige, and price consciousness were significant for low priced brand loyalty. Third, with respect to repurchase intention, all of three cosmetic attributes, P-Q/prestige, and sales proneness were significant for high-priced, while experiential attribute, personal attribute, and P-Q/prestige were significant for low-priced. Personal attribute contributed the most to high-priced brand loyalty and repurchase intention, whereas experiential attribute to low-priced. The findings of this study would be helpful to understand the purchase of high and low priced cosmetic brands. The managerial implications for cosmetic brand marketers were provided.

• Structural Monitoring and Maintenance
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• 제5권1호
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• pp.67-78
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• 2018

The stability of cutting slope influences the safety of railway operation, and how to identify the stability of the slope quickly and determine the rational monitoring plan is a pressing problem at present. In this study, the attribute recognition model of risk assessment for high cutting slope stability in the heavy haul railway is established based on attribute mathematics theory, followed by the consequent monitoring scheme design. Firstly, based on comprehensive analysis on the risk factors of heavy haul railway loess slope, collapsibility, tectonic feature, slope shape, rainfall, vegetation conditions, train speed are selected as the indexes of the risk assessment, and the grading criteria of each index is established. Meanwhile, the weights of the assessment indexes are determined by AHP judgment matrix. Secondly, The attribute measurement functions are given to compute attribute measurement of single index and synthetic attribute, and the attribute recognition model was used to assess the risk of a typical heavy haul railway loess slope, Finally, according to the risk assessment results, the monitoring content and method of this loess slope were determined to avoid geological disasters and ensure the security of the railway infrastructure. This attribute identification- risk assessment- monitoring design mode could provide an effective way for the risk assessment and control of heavy haul railway in the loess plateau.

• 대한간호학회지
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• 제30권5호
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• pp.1145-1155
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• 2000

The purpose of this study is to explore the concept spirituality and to gain understanding of nursing intervention that may improve spiritual well-being. The concept analysis framework developed by Walker and Avant (1995) was used to clarify the concept. In the study, 'Harmonious interconnectedness', 'Transcendence', 'Integrative Energy' and 'Purpose and Meaning in Life' emerged as the critical attributes of spirituality. The first attribute, 'harmonious Inter- connectedness', has three categories including intrapersonal, (self), interpersonal (others/ nature) and transpersonal (the Supreme Being). The second attribute, 'Transcendence', is defined as the ability to extend one's own self beyond the limits of usual experiences and to achieve new perspectives. This attribute is demonstrated by 'coping with situations', to 'self-healing', and 'transformation'. The third attribute of spirituality is 'Integrative Energy', which integrates all dimensions and acts as a creative and dynamic force that keeps a person growing and changing. 'Integrative Energy is also defined as an inner resource that gives a sense of empowerment. Therefore the highly spiritual person demonstrate 'inner peace', 'growing', 'inner strength,' and 'well-being'. The fourth attribute 'Purpose and Meaning in Life' represents a sense of connectedness with one's inner values and with a greater purpose in life. It is demonstrated by 'hope' and 'a powerful life'. In this study, the antecedents of the spirituality represented as 'spirit' and its potential enablers were 'Introspection/reflection', 'Interconnectedness with all living things', and an 'Awareness of a Higher-Power'. The consequences of this concept may be described as 'physical, psychosocial, and spiritual well-being'. Empirical referents of this are 'purposeful life' 'self-worth' 'hope' 'love' 'service' 'forgiveness' 'trust/belief' 'inner peace' 'self-actualization' 'religious practices' 'transformation' 'inner strength' and 'coping'. In conclusion, spirituality can be defined based on these critical attributes. Spirituality is a dynamic, integrative energy based on a feeling of harmonious interconnection with self, others and a higher power. Through it, one is enabled to transcend and to live with meaning and purpose in life.

• 전자공학회논문지
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• 제51권1호
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• pp.57-70
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• 2014

내적 암호화 방식은 비밀키와 암호문 사이에 파인 그레인 관계를 제공하는 암호학적 프리미티브이다. 본 논문은 완전한 속성 은닉 보호를 수행하는 새로운 IPE 방식을 제안한다. 제안한 IPE 방식은 합성 위수의 bilinear groups에 기반한다. 본 논문에서는 이중 암호화 시스템 체계를 사용하여 제안한 IPE의 완전한 속성 은닉 보호를 증명한다. 성능 분석에서 기존의 IPE 방식들과 제안한 IPE 방식의 연산량과 메모리 할당량을 비교한다.

• 한국조리학회지
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• 제14권4호
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• pp.106-118
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• 2008

Even though the number of food courts increased in recent years, there were few studies about them. Considering the effects of a food court on the sales of a mall or other shopping spots, it was necessary to analyze what kind of attribute attracts customers. For this research, conjoint analysis was used to test which attribute was the most decisive factor, and the results of this study were as follows. First, price was the first factor that customers attached great importance to. Next were time required from order to eat and menu diversity. Second, cluster analysis used by the individual value of utilities derived through the conjoint analysis showed two clusters. Third, the most preferred food court form gained 35.4% potential market share from the simulation. The information gained from this analysis provided an important starting point for marketing and determined what kind of attribution was considered in being part of the malls or buildings. Also, it could be made full use of creating and executing the most effective marketing strategies.

• 정보처리학회논문지D
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• 제17D권6호
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• pp.443-452
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• 2010

COTS(Commercial Off The Shelf) 시스템은 점점 더 재사용 개발에 있어서 중요한 일중의 하나로 되어가고 있다. 그것은 개발될 소프트웨어 품질 혹은 프로젝트 일정에 영향을 미칠 수 있는 COTS의 신뢰성을 포함한다. COTS 분석의 결과가 생길 수 있는 위험의 결과와 함께 프로젝트에 문서화되어야 한다. 효율적인 위험관리는 문제에 쉽게 대처할 수 있게 해주며, 그것이 수용할 수 없는 예산이나 일정 지연이 되지 않도록 해준다. 본 연구에서는 COTS 개발 시, 프로세스 이정표와 노력에 관한 위험요소 분석에 대한 기준을 제시한다.