• 제목/요약/키워드: Relation of Characteristics

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주기경계를 갖는 지파 마이크로파 도파관의 연구 (A Study of Slow Wave Microwave Waveguide on Period Boundary)

  • 김원섭
    • 전기학회논문지P
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    • 제58권4호
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    • pp.461-464
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    • 2009
  • The characteristics of slow wave structure employed for backward wave oscillators expected to be a high power microwave source are studied analyytically. The slow wave structure is a sinusoidally corrugated wall waveguide. The waveguide is designed and fabricated by cast aluminun. The dispersion relation and transmitted characteristics for microwaves are measured in the air. There exist literatures on high efficiency of enhanced radiation from backward wave oscillators involving plasma studied experimentally.

객체지향 지리정보시스템에서의 역할 기반 접근 제어 (Role-Based Access Control in Object-Oriented GIS)

  • 김미연;이철민;이동훈;문창주
    • Journal of Information Technology Applications and Management
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    • 제14권3호
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    • pp.49-77
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    • 2007
  • Role-based access control (RBAC) models are recently receiving considerable attention as a generalized approach to access control. In line with the increase in applications that deal with spatial data. an advanced RBAC model whose entities and constraints depend on the characteristics of spatial data is required. Even if some approaches have been proposed for geographic information systems. most studies focus on the location of users instead of the characteristics of spatial data. In this paper. we extend the traditional RBAC model in order to deal with the characteristics of spatial data and propose new spatial constraints. We use the object-oriented modeling based on open GIS consortium geometric model to formalize spatial objects and spatial relations such as hierarchy relation and topology relation. As a result of the formalization for spatial relations. we present spatial constraints classified according to the characteristics of each relation. We demonstrate our extended-RBAC model called OOGIS-RBAC and spatial constraints through case studies. Finally. we compare our OOGIS-RBAC model and the DAC model in the management of access control to prove the efficiency of our model.

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수위-유량 관계곡선을 이용한 경년별 수리특성량 변동에 관한 연구 - 낙동강 적포교(赤浦橋) 및 진동(津洞) 지점을 중심으로 - (A Study on the Temporal Variation of Hydraulic Characteristics by the Stage-Discharge Relation Curve - at Jeokpogyo, Jindong of the Nakdong River -)

  • 이재준;설지수;곽창재
    • 한국수자원학회논문집
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    • 제42권10호
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    • pp.867-876
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    • 2009
  • 본 연구에서는 하상이 경년별로 변화함에 따라 발생되는 수위-유량 관계곡선의 오차를 보완하기 위해 최근(2006 년)의 수위-유량 관계곡선을 기준으로 채택하여 일원화시키고, 과거의 하상상태와 경년별로 작성되어 왔던 수위-유량 관계곡선들과의 관계 및 수위, 단면적, 유속 등에 대한 수리기하학적 특성을 분석하였다. 연구 대상지점으로는 낙동강의 주요지점인 적포교와 진동 지점을 택하였으며, 과거의 실측 유량값을 최근(2006년)하에서의 유량으로 환산하였을 때 얻어지는 수위(환산수위)와 과거수위와의 관계 및 환산유속과 과거유속간의 관계 그리고 수위-통수단면적 관계, 수위-유속 관계 등의 상관식을 도출하여 기왕의 많은 자료들을 활용할 수 있도록 상관해석을 실시하였다.

한국 사회복지서비스의 변화 - 행위자간 관계의 분석 - (The Changes of Social Welfare Services in Korea - Analyzing the Changing Relationship between Actors -)

  • 양난주
    • 한국사회복지학
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    • 제62권4호
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    • pp.79-102
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    • 2010
  • 본 연구는 최근 한국 사회복지서비스의 변화를 민영화이론, 복지혼합, 소비자주의 접근으로 설명하는 것이 제한적이라고 보고 서비스 행위자간 관계분석으로 변화를 설명하고자 하였다. 사회복지서비스의 네 행위자인 이용자, 전달자, 제공자, 정부가 맺는 여섯 차원의 관계에서 변화를 공식성과 평등성 이라는 기준으로 분석하였다. 이 결과 한국 사회복지서비스에서 행위자들의 관계가 온정적이고 시혜적인 성격의 비공식적이고 위계적인 관계에서 공식성과 평등성을 강화하는 방식으로 제도화되고 있음을 포착하였다. 이러한 관계는 계약적 방식에 기초하고 있으며 행위자 권리의 제도적 기초가 형성된 점이 의미 있는 변화로 발견되었다. 반면, 정부와 다른 행위자들과의 관계가 가지는 불명료성이 딜레마로 분석되었다. 이 딜레마는 사회복지서비스 공급에서 서비스 질 관리라는 정부의 역할을 구체화하면서 해결되어야 함을 제안하였다.

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교환당사자의 특성, 교환관계 지각, 관계품질 및 행동의도의 순차적 인과관계 : 미용서비스 이용고객의 관점에서 (Sequential Causal Analyses of Exchange Party's Characteristic, Exchange Relation Perception, Relationship Quality and Behavioral Intention : Customer's Perspective)

  • 안봉근;주기중
    • 한국경영과학회지
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    • 제36권2호
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    • pp.15-32
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    • 2011
  • The research for exchange relationship in customer's perspective is meaningful especially in service, considering distinctive characteristics of service operations such as customer participation in the process whereas most of the recent related researches have been focused on employee's interaction with organization, leader, team and customer. In this study for beauty art service, the exchange party's characteristic is defined with beauty salon's reputation, staff's professionalism and customer's self-esteem. Also the exchange relation perception is classified into symbolism and interaction, Then the directional relations on customer's perspective are empirically investigated in the sequential order of the exchange party's characteristics, the exchange relation perception, the relationship quality and behavioral intention. In addition, the study examined the meditation effect via relationship quality between the exchange relation perception and the behavioral intention. Followings are confirmed from the statistical test with structural equation modelling:Symbolism is significantly caused by all of professionalism, reputation and self-esteem in the descending order of effect size whereas interaction is significantly influenced by only professionalism. The exchange relation perception has significant effect on the relationship quality, in turn which significantly affects behavioral intention. The exchange relation perception shows the significant indirect effect meditated by relationship quality and the insignificant direct effect on behavioral intention. This paper concludes with contribution of this study, managerial implication of the research findings and further research issues.

전라북도 직장여성이 인식한 직장 내 가부장적 특성에 관한 탐색적 연구 (A Study of the Patriarchal Characteristics at Workplace: Focused on the Perception of Employed Women in Chonbuk-Province)

  • 이승미;이성희
    • 대한가정학회지
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    • 제39권1호
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    • pp.191-204
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    • 2001
  • The purposes of this study are to find the general trends of patriarchal characteristics at workplace and to investigate the differences according to related variables. The concept of patriarchal characteristics at workplace is defined in terms of three aspects of work, human relation, and sexual harassment. The data were obtained through 880 employed women living in Chonbuk-Province. The major findings were as follows : 1) As to the aspects of work and human relation, it was found that employed women very highly experienced the inequality such as sexual division of labor, sex-discrimination, sexual segregation, and women degradation. 2) Over the 90% of respondents reported that they had experienced the victimization of sexual harassment at workplace at least once. 3) The work-related variables(the type of occupation, the size of workplace, the length of employed women's continuance service, the ratio of employed women at workplace) in the degree of patriarchal characteristics were more important then demographic variables(age, education, marriage status)

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가능성분포함수를 이용한 계층적 품질구조를 가진 제품의 만족도 평가 (An Evaluation on the Degrees of Satisfaction of Product with Hierarchical Quality Structure Using Possibility Distribution Function)

  • 김정만
    • 산업경영시스템학회지
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    • 제21권46호
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    • pp.173-180
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    • 1998
  • In conventional probability-based quality evaluation of products with qualitative characteristics, many factors that affect the evaluation are not easily represented quantitatively, because the relation between reliability of human evaluator and each of these factors is not clear. In order to evaluate the quality of product with qualitative characteristics quantitatively, in this paper, the relation is represented as the shape of possibility distribution function of fuzzy set on the interval [0,1]. Furthermore, fuzzy reasoning is used to obtain the estimates of quality characteristics. And, it is supposed that many quality characteristics affected by the above factors are connected with the final characteristic through hierarchical structures. Finally, using the estimates gained from the final evaluation, qualitative characteristics are evaluated by use of concept of pattern recognition.

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슈퍼마켓 점포속성이 점포충성도에 미치는 영향: SSM과 독립자영 SM의 비교연구 (The Effect of Store Characteristics of a Supermarket on Store Loyalty: A Comparative Study of the Local Supermarket and the Super Supermarket)

  • 안성우;권승구
    • 유통과학연구
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    • 제10권11호
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    • pp.61-70
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    • 2012
  • Purpose - The entry of Super Supermarkets (SSM), operated by large corporations, into the retail distribution market weakens the competitive power of local supermarkets (SM) and their families leading to a rapid collapse of the local-SM market. Accordingly, this is a very sensitive and urgent issue in Korean society and politics. Therefore, the government is required to take steps to activate a local-SM market and regain the loyalty of their customers. However, in spite of the urgent need of a comparative study on the advantages and competitive power of local-SM in relation to the SSM, little research has been done on this issue to date. One purpose of this study is to analyze the differences in store characteristics of the local SM and SSM, and to explore the relationships amongst various store characteristics, such as consumption emotion, relation quality, and store loyalty between store types to provide an efficient solution to activate a local-SM market. Research design, data, methodology - To analyze the differences in the evaluation of store characteristics between store types, and to test the moderator and mediator effects, data were collected from 488 customers in Seoul, Incheon,and Gyeonggi Province. The theoretical model consists of four hypotheses, and data was processed to test these using factor analysis, t-test, regression analysis, hierarchical regression, and the three step regression proposed by Baron and Kenny. Results - First, the analysis shows that local-SM customers evaluate location characteristic factors significantly higher compared to SSM customers. However, SSM customers evaluate quality of merchandise, sales promotion activities, and store environment significantly higher. Yet, there are no significant differences in the evaluation of consumption emotion, relation quality,and store loyalty between the store types. Second, the analysis of moderator effects of the store type show that sales promotion and store atmosphere factors have a significantly negative moderating effecton positive consumption emotion, while positive consumption emotion has a significantly positive moderating effect on absorption of relation quality, while there are no significant moderating effects between consumption emotion and store loyalty. Third, while both trust and absorption of relation quality are partially mediated between consumption emotion and store loyalty, only absorption is partially mediated between positive consumption emotion and store loyalty. There are no significant mediating effects of absorption between negative consumption emotion and store loyalty. Conclusions - We strongly recommend that location restrictions on entrance of SSM into local-SM market should either be further strengthened or sustained for the activation of the local store market. Government should strengthen financial support to improve the quality of merchandise, sales promotion, employee education, store environment of the local-SM by providing appropriate business consulting. Moreover, the result implies that the owners of alocal-SM should take measures to increase customers' absorption and store loyalty, such as store cleanliness, maintaining a delightful atmosphere at the store, and training employees on attitudes towards customers. As this study is restricted within Seoul, Incheon, and Gyeonggi Province, care needs to be taken in generalizing the interpretation and application to the national level.

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낙동강하구 점토의 공학적 특성과 압축지수와의 상관성 연구 (A study on the relationship between engineering properties and compression index for Nakdong-River estuary clay)

  • 진승현;이규환;정대석
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2009년도 춘계 학술발표회
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    • pp.737-742
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    • 2009
  • This research intends to clarify the engineering characteristics of compression index which plays the most important role in the calculation of consolidation settlement, based on the survey of the clay in the estuary of Nakdong River. In addition, it will analyze the parameters of soil and the correlation between the parameters and the existing relation, especially the correlation with compression index, through which it will propose a proper relation for the parameters of clay in this area. As a result of the study, the relation between the settlement and the compression rate using compression index showed 13% settlement error on the average. It is judged that this number can be used for forecasting the consolidation characteristics and the settlement for brief (preliminary) design when the difference between the execution settlement and the measuring settlement is regarded to be 15%.

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A Study on Relationship between Interpersonal Relation, Communication Skills and Work-related Stress in Physical Therapists

  • Myoung, Sungmin
    • 한국컴퓨터정보학회논문지
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    • 제21권2호
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    • pp.123-129
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    • 2016
  • In this research, we performed to investigate the relationship between interpersonal relation, communication skills and work-related stress in physical therapists. The subjects of this study were consist of 388 physical therapists from general hospitals and medical rehabilitation centers in Gyeonggi region. Data were analyzed using the PASW 18.0. Work-related stress showed statistically significant differences according to the demographic characteristics of clinical experience. Interpersonal relation found significant negative correlation for work-related stress except job-demand stress. Also, this study found negative correlation between communication skills and work-related stress, and significantly correlated interpersonal relation with communication skill. The results of this study suggest that in developing programs to manage work-related stress for improving interpersonal relations and communication skills in physical therapists.