• 제목/요약/키워드: Public good

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공공 자전거 정적 재배치에의 VNS 알고리즘 적용 (Application of Variable Neighborhood Search Algorithms to a Static Repositioning Problem in Public Bike-Sharing Systems)

  • 임동순
    • 한국경영과학회지
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    • 제41권1호
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    • pp.41-53
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    • 2016
  • Static repositioning is a well-known and commonly used strategy to maximize customer satisfaction in public bike-sharing systems. Repositioning is performed by trucks at night when no customers are in the system. In models that represent the static repositioning problem, the decision variables are truck routes and the number of bikes to pick up and deliver at each rental station. To simplify the problem, the decision on the number of bikes to pick up and deliver is implicitly included in the truck routes. Two relocation-based local search algorithms (1-relocate and 2-relocate) with the best-accept strategy are incorporated into a variable neighborhood search (VNS) to obtain high-quality solutions for the problem. The performances of the VNS algorithm with the effect of local search algorithms and shaking strength are evaluated with data on Tashu public bike-sharing system operating in Daejeon, Korea. Experiments show that VNS based on the sequential execution of two local search algorithms generates good, reliable solutions.

공공 웹사이트의 정보서비스 및 커뮤니티 요소 평가 -한국 관공서, 군, 경찰 홈페이지를 중심으로- (The Evaluation of the Information Service and Community Factors in Korean Public Websites)

  • 이재관
    • 한국국방경영분석학회지
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    • 제29권1호
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    • pp.76-87
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    • 2003
  • This paper proposes that we need a simpler method for developing the Website strategy for public institutions. The research objectives are threefold: (1) A model that relates to the monitoring of Website strategy in the public sector is proposed. The model includes basic dimensions and a $2{\times}3$ matrix that is a simplified version of the Mohammed et dl.s Marketspace Matrix. (2) The model is tested empirically with a sample of 56 Websites selected from govemment agencies, military organizations and police stations in Korea. (3) The effect of dimension/factors on the innovation level is tested. A special attention is paid to online attracting that is important for public institutions which usually do not use offline advertising aggressively. Results from regression analyses show that main dimensions (Marketing Drivers and relationship Stages) and three factors (Basic Information, Support Information, and Participation) in the matrix are all significantly influential on the innovation level, but the Attracting is not. Colorful designs and attracting features of a homepage have not necessarily anything to do with innovation. This message can offer a good piece of advice for managers of Websites.

대중교통의 안전요인이 고객만족에 미치는 영향 (Effect of Safety Factors of Public Transportation on Customer Satisfaction)

  • 우태희;엄기수
    • 대한안전경영과학회지
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    • 제13권4호
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    • pp.81-89
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    • 2011
  • The purpose of this study is to understand the safety factors of the public transportation and recommend the experimental factors of customer satisfaction. The survey consist of 28 questions of 5 factors about users characteristics on roads, railways, ships, and flights. As a result of multiple regression analysis, we knew that there are three potential factors affecting customer satisfaction. The Factors are named 'expected', 'attitude', 'management', and the variable of factors affect customer satisfaction significantly. Therefore, it is good strategy for effective working to improve customer satisfaction that maintain attitude with safety minds, try to specialized management, and creating expectation for safety considering the difference by the type of public transportation. After considering the meaningful result, for the development of policies for customer satisfaction for safety, we have to consider expected, attitude, and management factors of workers and officials that influence customer safety and try to improve the managerial factors considering the characteristics of their own.

Easier Set Than Done: Stakeholder Engagement as Public-Private Partnership in Regulatory Policy of South Korea

  • LEE, JONGYEARN
    • KDI Journal of Economic Policy
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    • 제41권3호
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    • pp.39-75
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    • 2019
  • An emphasis on public-private partnership (PPP) in the regulatory policy process can overcome the challenges hindering regulatory effectiveness with the emergence of fast developing technologies and new industries. This study attempts to evaluate quantitatively different aspects of institutional settings of South Korean regulatory policy in terms of stakeholder engagement as PPP, using evidence-based data released by the OECD. From the results of the principal component analysis, South Korea can be evaluated as being at a very good level overall in its institutional establishment. Nevertheless, the fact that the outcome of regulatory reforms in South Korea is still insufficient compared with this well-established system suggests that the country should concentrate on improving system operation. Consequently, this study makes policy suggestions to improve regulatory effectiveness through PPP by supplementing the facets that are well-equipped but not feasible with respect to regulatory policy cycle, regulatory governance, regulatory method, and conflict resolution.

An Efficient Public Key Based Security Architecture for Wireless Sensor Networks

  • Haque, Mokammel;Pathan, Al-Sakib Khan;Hong, Choong-Seon
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2007년도 춘계학술발표대회
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    • pp.1098-1099
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    • 2007
  • In this paper, we propose a public key based security architecture for Wireless Sensor Networks (WSNs). The basic architecture comprises of two schemes; a key handshaking scheme based on simple linear operations for fast computation and an identity based cryptosystem which does not require any certificate authority. Our analysis shows that, the combined scheme ensures a good level of security and is very much suitable for the energy constrained trend of wireless sensor network.

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농촌 공공기반시설 현황 조사 및 문제점 분석 (The Survey and Analysis of Public Infrastructures in Korean Rural Areas)

  • 허학영;남상채;최상운;오민근;안동만
    • 농촌계획
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    • 제8권1호
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    • pp.105-113
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    • 2002
  • This investigation aims to provide basic data for rural village planning and rehabilitation planning. Public infrastructures of forty selected villages have been surveyed. Provision of facilities, user satisfaction, perceived problems, and conditions of maintenance have been surveyed for three classified types of infrastructures; 1) public utility spaces such as community hall, and parking lots, 2) public production infrastructures such as warehouses, and irrigation facilities, and 3) public infrastructures for living environments such as roads, water supply, and sewage system. All twenty smaller villages (ki-cho-ma-ul) had problems of poor conditions and insufficient spaces with community halls. Most of the smaller villages suffered from lack of public production infrastructures, or had problems of insufficient spaces and poor maintenance conditions. They also lacked good access roads with adequate right of ways. Only three villages were provided with sewage systems. In the twenty larger villages (myun-bo-ma-ul), though public utility spaces were provided for most of them (as an example, sixteen villages had welfare centers), they were not large enough and they were maintained in poor condition too. On the one hand twelve of the larger villages had farm machine service centers, only a few villages were equipped with warehouses. Many more public infrastructures for living environments were found in larger villages. However, only a few villages had pollution control facilities. Multidimensional scaling revealed groups of distinctive characteristics, in terms of public infrastructures, among smaller villages. It did not show any noticeable distinctions among larger villages.

보건소 간호사의 개인-직무적합성과 조직지원인식이 직무만족에 미치는 영향 - 정규직과 비정규직의 조절효과 - (The Effect of Person-Job Fit and Perceived Organizational Support on Job Satisfaction on the Public Health Center Nurses : Moderating Effect of Full-time Public Servants and Temporary Public Servants)

  • 박시현;권동연;남혜경
    • 한국보건간호학회지
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    • 제33권2호
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    • pp.188-199
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    • 2019
  • Purpose: The aim of this study was to provide a person-job fit as the basis for a better job environment and human resource development by examining the causal relationships with the perceived organizational support and job satisfaction of 45 public health center nurses located in Gyeonggi Province. Methods: Frequency analysis, factor analysis, correlation analysis, path analysis, mediating effect, and moderating effect were verified for use by SPSS & AMOS 22 ver. to target to nurses located in Gyeonggi Province. Results: First, the person-job fit has a positive effect on the perceived organizational support and job satisfaction. Second, the perceived organizational support has a partial mediating effect. Third, there was no difference in verifying the moderating effect of full-time public servants and temporary public servants. Conclusion: This study examined the relationship among the person-job fit, job satisfaction as an organizational effectiveness, and the perceived organizational support of mediated effect for nurses working at public health centers. The nurses in government service containing permanent and temporal employees was the adjustment effect. The analysis results showed that the ability of public health center nurses to perform tasks related to person-job fit and the ability of the individual to perceived organizational support was high. In addition, and the job satisfaction was good.

공공도서관의 홍보 전략에 관한 연구- 서울의 공공도서관을 중심으로 - (A Study on the PR Strategy of Public Library)

  • 이만수
    • 한국도서관정보학회지
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    • 제38권1호
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    • pp.3-28
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    • 2007
  • 공공도서관의 홍보는 관내 홍보, 관외 홍보, 인쇄매체 홍보, 시청각 매체 홍보 설치물 홍보, 각종 행사를 통한홍보, 언론 매체 홍보 캠페인 사이버 공간, 관련 단체를 통한 홍보 등 여러 가지 관점에서 홍보 방법을 생각할 수 있지만 공공도서관 홍보를 위한 전략을 제시하면 다음과 같다. 첫째 도서관 홍보 전담 부서를 설치한다. 둘째 도서관 홍보 전담 사서를 배치한다. 셋째 도서관 홍보 예산을 수립한다. 넷째 지역사회 단체를 활용하여 홍보를 한다. 다섯째 지역사회 언론 매체를 활용하여 홍보한다. 여섯째 뉴스레터 (소식지)를 발간하여 홍보에 활용한다. 일곱째 홈페이지를 통하여 홍보한다.

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한국의 문화발전에 대한 공공도서관의 역할 (The roles of public libraries on the cultural development of Korea)

  • 박인웅
    • 한국도서관정보학회지
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    • 제21권
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    • pp.291-323
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    • 1994
  • The Result of the study can be summarized as follows : (1) Korean culture and public library look extremely wasted equally. Judging from this fact, I believe that it is impossible for public library can contribute to development of Korean culture. (2) But, public library can contribute to development of culture in the cultural environment that mental desire is prior to physical wants. This cultural environment can be built up with reading of good books. Therefore, if class to reading education and diverse reading education programs can be activated in a large portion of the nationwide public libraries and the majority of a local resident are capable of improving their creativity power, thinking power and imaginative faculty, public library can contribute to produce such cultural circumstances. (3) Quality, culture, a human and mind receive mu6 respect in Korean Society as advanced civil, democratic and industrial society in the future. The Society will be influenced by reason and rational culture will be suitable to this society. Creativity power, thinking-power, imaginative faculty, intelligence and power of information management are demanded to the greatest degree for the development of idea and new technology in the society under the control of rational culture. So, lifelong education with library use is the most fruitful and inexpensive way for the improvement of these powers.

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사용후핵 연료 관리 이슈 공론장과 그 갈등구조에 관한 소고 (The Public Sphere and the Conflict-Structure in Spent Nuclear Fuel Management)

  • 조성경
    • 방사성폐기물학회지
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    • 제7권1호
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    • pp.49-62
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    • 2009
  • 사용후핵 연료 관리 정책 결정 에 있어 사회적 수용성은 중요한 의미를 갖는다. 본고에서는 그 역동적 과정을 담아낼 그릇으로서 공론장을 제안한다. 즉, 사용후핵 연료 관리 정책에 대한 공론장은 무엇이고, 공론장의 주체인 이해관계자들은 누구이며 또 공론장에 내재된 갈등구조는 어떠한지에 대해 살펴보고, 바람직한 공론장의 조건에 대해 논의한다. 공론장은 다양한 이해관계자와 시민이 스스로의 의지를 바탕으로 정책의 결정과정에 영향을 미칠 수 있는 기제와 제도를 의미한다. 현실성 있고 효과적인 공론장을 구축하고 운영하기 위해서는 사용후핵 연료 관리를 둘러싼, 정치, 외교안보, 경제, 사회문화, 법과 제도에 관한 면밀한 분석과 대응방안 마련이 필요하다.

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