• 농촌지도와개발
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• 제17권3호
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• pp.527-548
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• 2010

The objective of this study is to suggest the developmental tasks for the successful fostering the Farmer's Study Group which have been guided by the agricultural extension work since 1994 in Korea. The 3,278 farmers study groups with 148,420 memberships have been organized in field of grains, cash crop, horticulture, livestock, improving living conditions, food processing and so on. Although the number of study groups have rapidly expanded, there also are tasks to be secured for their successful development in terms of (a) desirable phase of the study groups and goals of its fostering, (b) managements / administration of them, (c) long-term tasks to be reviewed. With regard to the desirable phase of the study groups and goals of its fostering, they should secure differential mission and the way of works compare to the other farmer's groups. Also, there should be consensus on the proper number of study groups to be fostered with a agricultural technical center at local level. With regard to the managements / administration of the study groups, there should be the different support, assistance and guidance according to the developmental level of the groups. For these, there should be evaluation works on the groups, and guidance manuals for the extension workers. Also extension works should facilitate the establishment of networks among groups over the counties. Finally, to establish the nationwide association in hierarchy and to make the cooperative works with similar farmer's group, doing the value-added activities rather than mere information exchange, and the introduction of capacity building programs for the extension workers are long-term tasks needed to review for the successful fostering study groups.

• ETRI Journal
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• 제37권5호
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• pp.877-887
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• 2015

This paper is a first-hand summary on our comprehensive live trial of cellular-assisted device-to-device (D2D) communications currently being ratified by the standards community for next-generation mobile broadband networks. In our test implementation, we employ a full-featured 3GPP LTE network deployment and augment it with all necessary support to provide realtime D2D connectivity over emerging Wi-Fi-Direct (WFD) technology. As a result, our LTE-assisted WFD D2D system enjoys the required flexibility while meeting the existing standards in every feasible detail. Further, this paper provides an account on the extensive measurement campaign conducted with our implementation. The resulting real-world measurements from this campaign quantify the numerical effects of D2D functionality on the resultant system performance. Consequently, they shed light on the general applicability of LTE-assisted WFD solutions and associated operational ranges.

• 전자공학회논문지
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• 제51권7호
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• pp.149-154
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• 2014

현대 데이터 컴퓨팅의 발전은 그래픽 기능의 향상을 이끌고 데이터 디스플레이를 위한 많은 가능성을 가지고 있다. 시각화는 방대한 양의 데이터에서 중요한 정보를 나타내줄 뿐만 아니라 복잡한 분석 방식에 효율적임이 증명되었다. 빅 데이터 분석과 발견은 컴퓨터 그래픽과 시각화 커뮤니티에서 새로운 연구 기회로 제시되고 있다. 본 논문에서는 주요 시장 국의 특허 분석을 통해 빅 데이터의 시각화 기술 개발 동향을 살펴보고자 한다. 특히, 2012년 11월을 기준으로 4개국에 출원 및 등록되어 있는 160건을 대상으로 분석을 진행하였다. 분석결과에 따르면 텍스트 클러스터링, 2D 시각화 분야의 기술개발이 중요하며 이에 대한 시급한 개발을 지향할 필요가 있다. 특히, 국내에서 다양한 스마트 디바이스의 증가와 소셜 네트워크 사용 증대로 인해 빅 데이터 입체 시각화 기술 개발이 매우 시급함을 알 수 있다.

• 한국인구학
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• 제29권3호
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• pp.73-87
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• 2006

본 연구는 유자녀가구를 가구주의 성별에 따라 남성한부모가구, 여성한부모가구, 양부모가구로 분류한 다음 가구유형별 경제적 빈곤실태를 비교하여 분석하였다. 그 결과, 한부모가구라 할지라도 가구주 성에 따라 이질적인 사회인구학적 특성이 발견되었다. 또한 여성한부모가구주들은 대졸 이상의 학력을 가진 경우에도 상대적 빈곤층에 속할 확률이 높았다. 이는 단순히 인적자본의 확충만으로는 이들 가구를 상대적 빈곤에서 벗어나게 하는 데 많은 제약이 있음을 의미한다. 다음으론 경제적으로 취약한 한부모가구들에서 이전소득보다는 가구주 근로소득의 절대적 비중이 크게 나타났다. 한부모가구의 빈곤탈출을 위한 제언은 다음과 같다. 첫째, 최저생계비 기준의 단순한 상향조정보다는 어린 자녀를 가진 한부모가족을 위한 직접적인 양육 및 주거비절감 대책이 요구된다. 둘째, 남성한부모가구의 경우에도 공적이전소득의 빈곤감소효과가 매우 적기 때문에 이에 대한 제도적 보완이 시급하다. 최저생계비 결정 및 집행과정에 있어서도 현재는 가구원 총수만이 고려되고 있으나, 사적이전소득의 격차와 기타 사회인구학적 특성의 차이를 고려하여 가구주의 성별, 자녀수, 자녀의 연령 등에 따라 차등화된 세부 기준에 따라 시행되는 편이 보다 합리적이다. 셋째, 저소득층 한부모가구주들을 대상으로 보다 나은 근로조건과 경제적 인센티브를 주는 근로연계형 복지제도와 대상자의 특성별 맞춤형 직업훈련 프로그램이 시행되어야 한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2006년도 추계학술대회 논문집
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• pp.1029-1036
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• 2006

South and North Koreas are putting forth efforts to overcome the distrust and animosity of the past 50 years to open an era of harmony and cooperation where the two halves can work together for mutual benefits. As part of those efforts, both parties are working now to reconnect the railways between the North and the South that remained broken for the past 60 years. In addition, the restoration of Trans-Korean railway paves the way for the "Silk Road Railway" which links European continent to Asian regions and Pacific Rim. The restoration project acts as a conduit for cooperation within in the Northeast Asian continent, hence, an important tool for facilitating peace and prosperity within the Northeast Asian region. Notably, the Railway project is regarded as the cardinal future-oriented peace building project for cultivating constructive, cooperative relations (Trans-Korean Railway and Trans-Asian Railway works) by stimulating human resources and commodity flows through railroad transportations. Northeast Asian region takes on a similar instance to the unification of European continent through its astounding development in railroad transportation, i.e., the international re-construction of Railroad lines will act as a catalyst to link Eurasian areas into one regional community for cooperation and peace. At present, the government is creating a momentum to bind trans-Eurasian railroad works and an initiative for "Northeast Asia Railroad networks and consultative organization". The South Korean administration paves the way to develop railroad network within South-North Korean, Russia and Eurasian region. It also fosters railroad cooperation with China for people and goods transports. To achieve such objectives, the project requires wide publicity and cross-border cooperation from concerned countries. The blueprint would have to be drafted up for Northeast Asian railroad train demonstration runs, Northeast Asian transportation agreements, with a bid to promote constitute Northeast Asian Railroad Consultation body. Moreover, the government would also have to prepare both, a draft of the linkage and the mandated standardized proposal.

• 가족자원경영과 정책
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• 제9권2호
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• pp.185-197
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• 2005

Every one hopes for the strong or healthy families and happy society, The Healthy Families Act legislated on February 9, 2004, and three centers were appointed to perform as a model, before the law has been in force from January 1, 2005. The major services or programs at the Center performed last year were as follows; educational programs, counseling for prevention of family problems, and cultural events for strengthening the family functions. This study presented the general situations of Seoul Yongsan-gu Sookmyung Women's University Center for Healthy Families last year, evaluated the product of cultural events or programs, and proposed better ideas for managing cultural services or programs. In 'the division of Home Culture', the community networks were established, and diverse events or programs provided drew high satisfaction among attendants. In the future, some services or programs at Seoul Yongsan-gu Sookmyung Women's University Center for Healthy Families hoped to be helpful and made a basis for activating services or programs for other centers.

• 한국조경학회:학술대회논문집
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• 한국조경학회 2007년도 Journal of Landscape Architecture in Asia Vol.3
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• pp.44-48
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• 2007

In recent years, the relationships and inter-dependencies between the countries in East Asia have deepened, and the vision for regional cohesion such as the East Asian Community have been gradually elaborated. A Grand Design for Northeast Asia is one of these comprehensive visions that aim to improve and develop international infrastructure through cooperation in the field of transportation, energy, environment, and information technology. This study paid attention to the possibility for a system for regional cohesion and cooperation in spatial development in East Asia, and analyzed the roles of the ESDP according to the requirements of the East Asian situation. As a result, it was understood that while the development of infrastructure is a main stream in the case of the regional cohesion in East Asia, the cooperative visions for the conservation of natural and cultural heritage, which are being positioned as an important policy in the EU, have not been seen. It is a very important subject to promote the policy cohesion/cooperation on the conservation and management of natural/cultural heritage and the development of tourism infrastructure for the sustainable development of East Asia, considering the trends in the growth of the interchange population and tourism market in East Asia. It was discussed that the role of research networks like the International Landscape Architectural Symposium of Korea, China and Japan is becoming important in supporting this policy cohesion and in grasping the present conditions and trends of the spatial development of these counties.

• Journal of Information Processing Systems
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• 제10권1호
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• pp.103-118
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• 2014

Over the last couple of years, traditional VANET (Vehicular Ad Hoc NETwork) evolved into VANET-based clouds. From the VANET standpoint, applications became richer by virtue of the boom in automotive telematics and infotainment technologies. Nevertheless, the research community and industries are concerned about the under-utilization of rich computation, communication, and storage resources in middle and high-end vehicles. This phenomenon became the driving force for the birth of VANET-based clouds. In this paper, we envision a novel application layer of VANET-based clouds based on the cooperation of the moving cars on the road, called CaaS (Cooperation as a Service). CaaS is divided into TIaaS (Traffic Information as a Service), WaaS (Warning as a Service), and IfaaS (Infotainment as a Service). Note, however, that this work focuses only on TIaaS and WaaS. TIaaS provides vehicular nodes, more precisely subscribers, with the fine-grained traffic information constructed by CDM (Cloud Decision Module) as a result of the cooperation of the vehicles on the roads in the form of mobility vectors. On the other hand, WaaS provides subscribers with potential warning messages in case of hazard situations on the road. Communication between the cloud infrastructure and the vehicles is done through GTs (Gateway Terminals), whereas GTs are physically realized through RSUs (Road-Side Units) and vehicles with 4G Internet access. These GTs forward the coarse-grained cooperation from vehicles to cloud and fine-grained traffic information and warnings from cloud to vehicles (subscribers) in a secure, privacy-aware fashion. In our proposed scheme, privacy is conditionally preserved wherein the location and the identity of the cooperators are preserved by leveraging the modified location-based encryption and, in case of any dispute, the node is subject to revocation. To the best of our knowledge, our proposed scheme is the first effort to offshore the extended traffic view construction function and warning messages dissemination function to the cloud.

• 정보학연구
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• 제1권1호
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• pp.155-172
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• 1998

전자상거래의 경제적 효과는 인터넷의 활용으로 전제적인 거래비용을 줄임으로써 기업의 구조와 사업영역을 변화시키고, 중소기업의 시장진입을 쉽게 함으로써 다양한 거래형태와 많은 이익을 안겨주고 있다. 또한 전자상거래는 검색비용, 배달시간 등을 절감시키고 소매업을 변형시켜 제품의 설계와 소비자에게 최종판매되는 공급사슬의 매개와 교환에 영향을 끼치고 있다. 따라서 전자상거래에서 얻을 수 있는 전체적인 효과는 낮은 거래비용으로 국내외적인 경쟁촉진, 품질향상과 가격하락, 기업간 상거래와 소매업의 변형을 들 수 있다.

• 환경생물
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• 제25권2호
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• pp.149-157
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• 2007

본 연구는 우리나라 서해안에서 월동하는 수조류 군집의 특성 및 환경요인에 따른 분포 특성을 밝히고자 수행되었다. 수조류 군집조사는 10개 지역에서 실시되었으며, 환경요인으로 토지피복도 비율을 측정하였다. 전체 조사지역에서 종 구성은 수면성 오리류가 84%로 가장 높은 비율을 나타냈고, 그 외 잠수성 오리류, 섭금류, 기러기류, 갈매기류 등이 많이 관찰되었다. 가장 높은 우점도를 나타낸 종은 청둥오리(Anas platyrhynchos)였으며 다음으로 가창오리(Anas formosa)가 차지하였다. 비지도 학습법 인공신경회로망인 self-organizing map(SOM)을 이용한 월동 수조류 군집을 유형화 한 결과 수조류 군집은 6개의 그룹으로 구분되었다. 각 그룹은 서식지의 특성에 따라 명확히 구분되어 서식지의 공간특성을 잘 반영해 주었으며, 또한 조사 시기에 따른 군집의 차이도 잘 나타내 주었다.