• 대한산업공학회지
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• 제4권2호
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• pp.97-105
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• 1978

A mathematical model is developed in order to describe the network configuration and heating distribution to a Central District Heating System for an Urban Residential Community. The purpose of using this model is to optimize operating costs and to distribute heat to the Residential Community efficiently. In particular, because of the inherent nonlinearity and dual optimization of the problem a dyamic programming approach is taken. It is turned out that the optimal cost of the system is a strong non-linear function of the network. In particular, it is found that increasing N, the number of houses, may not necessarily imply increased costs. It is felt that past failure of producing economical systems may be due to the improper attention given to the network.

• 한국중재학회지:중재연구
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• 제31권3호
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• pp.91-107
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• 2021

The Korean Association of Arbitration Studies faces its 30th anniversary in 2020 since its foundation in 1991 and is being celebrated and congratulated across the communities in and out of the country. However, the association seems to be standing at crossroads between a negative and positive direction. As shown in the past KAAS pattern in its academic activities, the academic community tends to focus relatively more on domestic issues, expanding its domestic network rather than international network for the past years. KAAS needs to turn its face to see the other side of the world, stretching its hands to the people outside first. For this purpose, this paper suggests that KAAS should strengthen its cooperative capability through the international cooperation division. KAAS' past 30 years of accumulated know-how and its academic network will play critical roles i-n expanding its partners across the global academic community. This paper delivers special thanks to the institutions, including the LMAA, CAC, SIAC, HKIAC, RSPP/ACRU, IDAC, and LAMC who sent cooperative works and congratulatory messages to KAAS 30th anniversary despite the COVID-19 pandemic situation.

• 정보관리연구
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• 제42권2호
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• pp.211-234
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• 2011

The development of information technology improves the globalization of the world economy. This change was able to expand the cyber space, and the online community known as the cyber community is made within the existing offline community. From the cyber community's activity, the concept of social network services created, and recently developed social computing. Social computing is the current situation and the next step in the online community. Currently, most CIOs are using social computing for workplace empowerment. As online transactions become more active, the strategy to increase customer loyalty in Internet shopping is an effective tool to increase profit for the company, and as a method to maintain competitive. With the growth of electronic commerce, through insurance of customer loyalty on the Internet, a company can establish a long-term relationship with customers, so for this, it is important to have reliable relationship with customers. Also, through advertisement and commercial information, the cognition of Internet shopping looks can be effective in retaining customers. In this study, it explores how social computing and trust and cognition of Internet shopping are effective in maintaining customer loyalty. As the result of study, the trust and cognition of Internet shopping are significantly effective on customer loyalty, but the sense of social computing. Still, social computing has not matured enough to be as effective in retaining customer loyalty. However, it does indicate that social computing has significantly increased the trust and cognition in Internet shopping. In this study, as the concepts of the social network service and social computing are applied in Internet shopping, which are actively discussed by scholars, it is expected that the basis of the study could improve and present the idea of social shopping.

• 대한간호학회지
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• 제52권2호
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• pp.202-213
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• 2022

Purpose: This study examined characteristics and patterns of interorganizational networks for smoking prevention and cessation in Korea. Methods: We surveyed two community health centers, ninety-five hospitals or clinics, ninety- two pharmacies, and sixty-five health welfare organizations in two districts of Seoul in 2020. Data on the organizations' characteristics of smoking cessation and interorganizational activities for information sharing, client referral, and program collaboration were collected and analyzed using network statistics and blockmodeling. Results: Network size was in the order of information sharing, client referral, and program collaboration networks. Network patterns for interorganizational activities on information sharing, client referral, and program collaboration among four organizations were similar between the two districts. Community health centers provided information and received clients from a majority of the organizations. Their interactions were not unidirectional but mutual with other organizations. Pharmacies were involved in information sharing with health welfare organizations and client referrals to hospitals or clinics. Health welfare organizations were primarily connected with the community health centers for client referrals and program collaboration. Conclusion: A community health center is the lead agency in interorganizational activities for smoking prevention and cessation. However, hospitals or clinics, pharmacies, and health welfare organizations also participate in interorganizational networks for smoking prevention and cessation with diverse roles. This study would be evidence for developing future interorganizational networks for smoking prevention and cessation.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제16권4호
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• pp.432-436
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• 2010

소셜 네트워크를 비롯한 네트워크로부터 커뮤니티를 발견하려면 네트워크의 노드를 그룹 내에서는 서로 조밀하게 연결되고 그룹 간에는 연결의 밀도가 낮은 그룹들로 군집화하는 과정이 꼭 필요하다. 군집화 알고리즘의 성능을 위해서는 군집화의 기준이 되는 유사도 기준이 잘 정의되어야 한다. 이 논문에서는 네트워크 내의 커뮤니티 발견을 위해 유사도 기준을 정의하고, 정의한 유사도를 유사도 전파(affinity propagation) 알고리즘과 결합하여 만든 방법을 기존의 방법들과 비교한다.

• 공학논문집
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• 제7권1호
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• pp.53-60
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• 2005

Community Wireless Networks define the next generation wireless services. Multimedia usages for financial services over community Wireless LAN (WLAN) based mesh networks require link stability. Several new services are being proposed for multimedia over WLANs. Portable Internet Services are implemented by several wireless carriers to proliferate their customer base. However, these services are still expensive and require a central telecom/wireless carrier whose monopoly and preference defines the availability of new services. Our research project identifies the usage of these critical services in public places over the financial services backbone architecture to provide efficient easy-to-use and economical services to their customers and merchants without being dependent on the central wireless carrier. The user connects to the network using his regular WLAN NIC using the Mesh Router/Bridge interconnectivity and obtains the needed multimedia and financial services from the ATM-AP Gateway, In our proposed scenario, the ATN AP-MR use AODV protocol and MR-MC is based on 802.11g/a/b IEEE standard. We use multi path routing protocols for reducing the congestion over a particular route. We demonstrate the results of our simulations and test-bed outcome to evaluate link failure rate and oversubscription factors to eliminate network congestion and non-availability of the critical financial services.

• Agribusiness and Information Management
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• 제3권1호
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• pp.1-10
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• 2011

In this exploratory analysis, we investigate the genesis and the evolution of local food-purchasing networks created and operated by consumers. In details, we describe how collecting and sharing information about food-products can become a central activity for some consumers' communities and how these communities are starting to play an active role in the food supply chain. We define this community-based food-purchasing model as collaborative food network (CFN), and we analytically describe its characteristics and differences with respect to the traditional and industrialized agrifood supply chain models. A collaborative food network community in Italy, known as GAS ("Gruppi di Acquisto Solidale" - "Solidarity Purchasing Groups"), is introduced as an example of our analytical model. We will use this empirical example to present the strengths and weaknesses of the CFN model.

• 한국언론정보학보
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• 제78권
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• pp.79-115
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• 2016

이 연구는 마포 FM에 대한 사례연구를 통해 대안 미디어, 테크놀로지, 그리고 콘텐츠 중심의 논의로 치우쳐져 있는 기존의 공동체 라디오 연구의 한계를 넘어서려는 시도를 한다. 지역 공동체의 구성원들이 방송 제작에 직접 참여함으로써 스스로 문화적 정체성을 재구성해낸다는 측면에서 공동체 라디오는 구성원들의 문화적 실천을 엮어내는 역할을 한다고 할 수 있다. 즉 지역 공동체 구성원들이 공동체 라디오를 전유하고 이를 통해 스스로 정체성을 재구성해내는 양상들은 공동체 라디오의 정체성을 재조명할 수 있게 하는 단초를 제공해준다. 심층 인터뷰를 동원한 현장연구 결과에 따르면, 공동체 라디오는 참여형 제작과정이라는 문화적 실천을 통해서 엮이게 되는 - 즉 지역 공동체 구성원들과의 상호작용이라는 측면에서 - 삶이 묻어나는 매체인 동시에, 지역성과 대안성이라는 특성을 넘어 시민성과 공동체성과 관계망의 형성에 기여하는 미디어, 즉 사회적 유대감과 연대를 형성하는 데에 기여하는 미디어라고 재정의 할 수 있다.

• 한국실내디자인학회논문집
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• 제19권6호
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• pp.241-248
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• 2010

The population of the elderly is rapidly increased because maturation of the social welfare system and development of medical technology. However, welfare environments for the elderly are poor either in its quality or its quantity. The aims of this study is to confirm the space improvement possibility to change the Gyung Ro Dang to the senior life support center as a community welfare service network. This study is done by the comparative analysis between existing Gyung Ro Dang in korea and former cases in Japan based on the elderly's facility preference. The facility's space reprogramming alternative from that analysis is applied to change the Gyung Ro Dang to a network facility for the regional senior life support. Afterward, it is proposed that first, facilities should be expanded scale by the new education and health improvement facilities functional room that the modern elderly need. second, Facility space will be reconstitution because the Gyung Ro Dang have to be extended it's role as a community welfare network.

• 지질공학
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• 제32권2호
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• pp.281-293
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• 2022

본 연구는 강원도 춘천에 설치·운영 중인 지하수관측망의 지하수위 변동특성을 이해하기 위해 2009년에서 2018년까지 장기 관측된 관측망 지하수위 자료에 대하여 시계열분석은 실시하였다. 해당 관측망은 5개소로 모두 암반대수층에 설치되어 있으며, 해당 운영기관에서 주기적인 점검과 관리가 이루어지는 것으로 파악된다. 시계열분석은 자기상관함수, 스펙트럼밀도함수 그리고 교차상관함수 분석을 수행하였다.