• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2006년도 추계학술발표논문집
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• pp.331-334
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• 2006

This paper proposes the selection model of the telecommunication company using an analytical hierarchy technique. When selecting a telecommunication company, consumers conflict the difficulty in decision-making because there are many competitive and complementary factors of telecommunication companies. To select an optimum telecommunication company, consumers need to consider a number of different quantitative and qualitative factors such as fare, various services, additional function and so on. In this study, we develop the method for selecting the telecommunication company considering various factors to help consumers' decision-making for their benefits.

• 자연과학논문집
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• 제8권1호
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• pp.115-121
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• 1995

기존의 상업용 데이타베이스 시스템들은 복잡한 오브젝트 들의 계층 구조에 의존하며 방대한 양의 데이타를 반복적으로 접근하는 CAD 데이타의 특성을 효과적으로 지원하지 못하여 CAD 데이타베이스의 중요성과 이의 효율적인 관리를 위한 연구의 필요성이 대두되었다. 본 논문에서는 CAD 데이타베이스의 효율적인 관리와 설계 도구들의 통합을 위한 좋은 환경을제공하기 위하여, 계층적 인터페이스 시스템을 설계하고 이의 구현을 위해 CAD 데이타베이스의 특성을 고려한 GROCO 모델을 제시하고자 한다. 배치기와 변환기의 두 개의 서브시스템으로 구성된 계층적 인터페이스 시스템은 CAD 데이타의 효율적인 관리를 위한 빠른 실용화를 위해 기존의 상업용 데이타베이스 관리 시스템과 CAD 도구들을 인터페이스 시키는시스템으로 개발되어 실제 CAD 도구들에 적용하고자 한다. GROCO 모델은 데이타의 의미들을 나타내기 위한 5개의 노드 타입들이 연결되어 방향 주기 그래프를 구성하고 있다. 이 모델은 이질적인 데이타들의 다양한 형태의 모임으로 구성된 복잡한 오브젝트들의 계층구조에 의해 이루어진 CAD 데이타의 특성을 효과적으로 지원하고자 한다.

• 한국항해학회지
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• 제18권4호
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• pp.33-47
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• 1994

On developing port system, the performance tests of system in relation to ship maneuver generally consists of the three parts: the channel transit, the manoeuvring in a turning basin and the docking/undocking. The quantifications of risk of an accident has priviously been difficult due to the low occurrence of accidents relative to the number of transits. Additionally, accident statistics could not be related port system because of the large number of factors contributing to the accident. such as human error, equipment failure, visibility, light, traffic. etc. In case of the channel transit, "Relative Risk Factor(RRF)" or "Relative Risk Factor for Meeting Traffic" was proposed as the as the measures derived to quantify the relative risk of accident by M.W.Smith. This factor measure the tracking performance, the turning performance and the passing performance at meeting traffic. On the other hand, the safety of berthing maneuver is not measured with a few evaluating factors as controlled due to complex controllabilites such as steering, engine, side thrusters or tugs. This work, therefore, aims to propose the evaluating measure by the Analytic Hierarchy Process(AHP). Six experimental scenarios were establised under the various environmental conditions as independent variables. In every simulation, the difficulty of maneuver was scored by captain and compared with AHP scores. The results show almost same and from which the weights of eight evaluating factors could be fixed. Additionally, the limit value of relative factor in berthing safety to six scenarios could be estimated to 0.11.e estimated to 0.11.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.732-735
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• 2006

Downtown cities in Japan are facing sharp fall in customers and continued shut down of shops due to decrease of population, increase in family cars and flowing of customers into the suburban large-scale retail stores. Omura City in Nagasaki Prefecture, Japan is no exception to this. For the revitalization of the downtown, many actions have been taken to open the vacant shops. However, transportation problem is the most important one to be solved for the citizens including the elderly people having difficulty in movement. Accordingly, this study was aimed at the revitalization of the downtown by substantiality public transportation. We have attempted to develop routes from the view-point of convenience by using Analytic Hierarchy Process (AHP) and Geographic Information Systems (GIS). As a result of the study, we were able to select three bus transportation areas by incorporating qualitative factors into the analysis. Finally, the study concluded that, revitalization activities of the downtown city itself is required in addition to re-structuring of bus transportation system for the revitalization of the downtown city.

• 대한안전경영과학회지
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• 제10권2호
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• pp.33-41
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• 2008

Rapid spread of the internet has made our everyday life more convenient, however it has brought some problems along with it. Especially, undergraduate student are losing their social ability as they become absorbed in the internet game, act selfishly in the cyber space and lose interest in studying. As a result, they become isolated from their friends and experience difficulty in the relationship with their parents. In this paper, the influence factors of internet game addiction is investigated using the Analytic Hierarchy Process (AHP) and statistics techniques. This study is to define the influence an important factors of internet game addiction using a questionnaire to internet game player and expert group. It is believed that this study will be more receptive to results that include the priority weights of internet game addiction among the addiction group, non-addiction group and expert group.

• 수산해양교육연구
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• 제26권5호
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• pp.1165-1174
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• 2014

The research was conducted on 238 marine sports participants by clarifying the relationship among self-efficacy, sociality, and organization culture, to eliminate the organizational(home, school, club, workplace, etc.) culture maladjustment phenomenon which is caused by personal stress, the lack of physical activity, and the lack of sociality due to the rapid change of modern society and enhance sociality, adjustment to society and the lack of creativity due to the rigid hierarchy and contribute to organization culture through marine sports among sports which we enjoy with nature. Firstly, according to general self-efficacy, and social characteristics of the organizational culture and the gender differences in higher than women in all sub-variables of the sub-factors of self-efficacy and self-regulation, sociability, organizational culture, sub-culture and develop cultural factors agreed man showed that in the sub-factors of organization culture showed that the development of high culture and hierarchical culture in the age of 20s. Secondly, in terms of the effect of self-efficacy of marine sports participants on sociality, it is found that self-regulation and level of difficulty positively influence on the culture of agreement, the culture of development and the culture of hierarchy. Lastly, in terms of the effect of self-efficacy of marine sports participants on organizational culture, it is shown that self-regulation has positive influence on the culture of agreement, the culture of development and the culture of hierarchy.

• 재활치료과학
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• 제11권3호
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• pp.65-80
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• 2022

목적 : 본 연구는 라쉬 분석을 이용하여 12개 항목의 스트레스 대처 척도의 항목 심리측정 속성을 조사하고자 하였다. 연구방법 : 본 연구는 ICPSR(Inter-university Consortium for Political and Social Research)에서 제공하는 공공 자료를 활용하여 로스엔젤레스에 거주하는 노인 480명을 대상으로 조사하였다. 주성분 분석을 사용하여 척도의 일반적 요인을 조사하였다, 라쉬 분석의 내·외적합 지수의 제곱평균(Mean Square)과 표준값(ZSTD)를 통해 항목 적합도를 알아보고, 척도의 신뢰도와 쉬운 항목과 어려운 항목을 식별하기 위해 항목-난이도 계층을 조사하였다. 마지막으로 성별과 연령 그룹에 대해 차등 항목 기능을 조사하였다, 결과 : 주성분 분석을 통해 스트레스 태처 척도의 12개 항목이 하나의 요인으로 구성되었음을 가정하였다. 라쉬 분석을 통하여 항목 2번이 부적합한 결과로 제거되었다(내적합 제곱평균=1.33, 내적합 표준값=5.05, 외적합 제곱평균=1.56, 외적합 표준값=7.15). 항목 2번을 제외한 11개 항목의 평가자 층(Person Strata)은 3.10으로 신뢰도 지수 0.81에 해당하는 값을 보였다. 차등 항목 기능을 조사한 결과 성별과 연령 그룹에 대한 차등 항목 기능은 없었다. 결론 : 라쉬 분석을 통해 개정된 COPE-11은 항목 간 심리측정 속성이 적절하여 측정 시 시간 단축과 정확한 측정이 가능할 것으로 사료된다.

• 한국전문물리치료학회지
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• 제15권3호
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• pp.26-34
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• 2008

The purposes of this study were to assess and modify the original classification categories of the modified Oswestry Low Back Pain Disability Questionnaire (ODQ) and to determine the unidimensionality of the modified ODQ applying Rasch Analysis. The data were obtained from 108 work-related low back pain patients by physical therapists. Construct validity of the scale using the Rasch model required the structure of the rating scale to be modified from 6 response levels to 4 response levels. Eight items from the modified ODQ fit the Rasch model. The items, "pain intensity" and "social life" showed misfit statistics. In general, the order of item difficulty of the remaining 8 items showed a logical item difficulty hierarchy with the "changing degree of pain" item being the most difficult and the "walk" item being the easiest. The results showed that further study is needed to expand the construct of ODQ including additional higher-level items related to work activities. This study may be useful for establishing a standard method to assess the functionality of low back pain patients.

• 한국실내디자인학회논문집
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• 제15권5호
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• pp.183-192
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• 2006

This study analyzes the characteristics of special configuration for wayfinding in general hospitals. To that end, the study categorizes four different hospitals, according to the type of their wayfinding systems. It aims at utilizing the result of the analysis for wayfinding system in general hospitals by applying three elements of analysis methods', perpetual access, depth, and intelligibility. The study result shows as follows: First, there is no difference in special hierarchy when hospitals are analyzed and divided by halls and streets. It means that outpatient departments are located by spatial function and characteristics rather than form of spatial configuration. Second, we found that fewer direction changes are conducive to easier circulation in terms of wayfinding, when we analyzed spatial depth from the main entrances to the outpatient departments. Third, regarding intelligibility, intelligibility of Chungang University Hospital ranked highest. Kunkook University Hospital, Dongkook University Hospital and Seoul National University Hospital ranked 2nd, 3rd, and 4th respectively. It means that difficulty level of wayfinding is not decided by the characteristics of special configuration such as hospital hall and hospital streets but depends on location planning. The difficulty level of wayfinding mainly relies on location planning.

• 한국비블리아학회지
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• 제27권3호
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• pp.51-73
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• 2016

본 연구는 공공도서관 사서들이 어려움을 느끼고 있는 평생교육 단위직무를 파악하고 동시에 재교육이 필요한 교육 내용에 대한 우선 순위를 맨휘트니(Mann Whitney U-test), 다중회귀분석(Multiple regression analysis)과 AHP(Analytic Hierarchy Process) 분석을 통해 제시하였다. 첫번째, 조사 대상 사서의 87%가 평생교육 직무는 보통이거나 어렵다고 인식하고 있었으며, 단위 업무별로는 운영계획수립을 가장 어려운 직무로 생각하고 있었다. 두번째, 평생교육사 자격이 있는 사서가 없는 경우에 비해 업무를 수월하게 인식하고 있었으며(P=0.04), 단위업무별로는 강사섭외(P=0.04), 운영계획수립(P=0.05)에 있어 유의한 차이가 검증되었다. 또한 평생교육관련 경력이 길수록 업무를 수월하게 (R=-0.217) 느끼는 것으로 나타났으며, 특히, 일정편성(R=-0.33), 진행업무(R=-0.22)에 있어, 통계적으로 유의한 상관성을 보였다. 세번째, 다중회귀분석 결과, 공공도서관 사서들이 평생교육업무 전반에 대하여 느끼는 체감 난이도에 유의한 영향을 주는 단위 직무는 운영계획수립(P=0.04)과 홍보(P=0.05) 업무인 것으로 나타났으며, 그중 운영계획수립(${\beta}=0.233$)이 체감 난이도 형성에 가장 많은 영향을 주는 요인인 것으로 판명되었다. 한편, 91%의 사서가 평생교육 직무 관련 재교육이 필요하다고 느끼고 있으며, 스피어만(Spearman rank-order correlation coefficient) 분석 결과(R=-0.210), 평생교육 업무에 대한 체감 난이도가 높은 사서일수록 재교육 필요성을 더욱 많이 느끼고 있는 것으로 나타났다. AHP 분석 결과 평생교육 직무 관련 재교육 내용은 이용자와의 소통(CU P=0.310), 기획(PL P=0.246), 마케팅(LM P=0.173) 순의 가중치를 보였으며, 도출된 CR(Consistency Ratio) 비율은 0.146으로 계산돼, 응답에 대한 일관성은 허용할 수 있는 수준인 것으로 나타났다.