• 산업기술연구
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• 제28권B호
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• pp.15-25
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• 2008

This paper is to develop a network reorganization method to consider the constraints which are turn restrictions, U-turns, and P-turns in two way traffic network for Intelligent Transport System(ITS). Several kinds of traffic constraints can be represented in reorganized network using virtual nodes and arc values. The evolution program is also developed to search the multiple shortest paths in this reorganized traffic network within limited time.

• 산업공학
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• 제10권3호
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• pp.179-187
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• 1997

The efficiency of material flow systems in terms of optimal network flow and minimum cost flow has always been an important design and operational goal in material handling and distribution system. In this research, an attempt was made to develop a new algorithm and the model to solve a stochastic material flow network with bidirectional and uncertain flows. A stochastic material flow network with bidirectional flows can be considered from a finite set with unknown demand probabilities of each node. This problem can be formulated as a special case of a two-stage linear programming problem which can be converted into an equivalent linear program. To find the optimal solution of proposed stochastic material flow network, some terminologies and algorithms together with theories are developed based on the partitioning and subgradient techniques. A computer program applying the proposed method was developed and was applied to various problems.

• 가정과삶의질연구
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• 제17권1호
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• pp.103-120
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• 1999

The purpose of this study was to investigate the characteristics and caregiving behavior in families who awarded on filial piety. Using the qualitative method 137 families and social supports to them were analyzed,. The major findings can be summarized as follows (1) Most of caregivers were daughter-in -law over 40 years in 3-generation or 2-generation family. Elderly can be characterized as oldest-old dependent long-term care for more than 10 years. (2) These families showed very high family solidarity with strong collectivity. (3) Their economic emotional and service cares were family-centered with helps from their extended family. These families were supported emotional helps rather than instrumental helps from social network. It was concluded that to help family elder care social support program for the frail elder caregiving families should be complemented in their children support program family life enrichment program for the inter-generational relationship medical care program other social network program and religion program etc. And more concrete and qualified study for the adaptation of filial piety families should be followed.

• 보건의료산업학회지
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• 제6권4호
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• pp.219-229
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• 2012

This study aimed to explore influencing factors on the establishment of the network system between public hospitals and to make a process evaluation of it. we analyzed the case of a strategic alliance contracted by a National University Hospital(NUH) and a Community Hospital(CH). Main points of the project were regular dispatch of clinical specialists in the NUH such as gastroenterologist and running teleradiology program. The NUH considered the improvement of it's image as a public hospital as a successful element of the network program. The provincial office which have to manage the CH satisfied with these program in terms of helping CH in need of clinical specialists. Staffs in the CH pointed out the problem of discontinuity for patients who visited the CH. Three institutes argued that continuous support of central government in the relevant institution and budget could play the most important role in the advance of the network system between public hospitals.

• 한국농공학회논문집
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• 제50권6호
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• pp.83-91
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• 2008

This study grasped problems and properties of rural tourism through Cooperative Tourism Development Model Project, so it provided to develop network program and to indicate long-term development direction. This study area was Gubyung-Areum village in Boeun-gun, Chungcheongbuk-do. This village has superior natural landscape and rich area theme. Also, this village was chosen in Areum Village Revitalization Project in 2002, infrastructure full equipment was achieved. Gubyung-Areum village is administering buckwheat flower festival and experience program by Bo-Eun County Office help to change the farm stay village to the rural experience village. But, there were some problems to operate in experience program. So that Chungcheongbuk-do Provincial Government Republic of Korea is propelling Cooperative Tourism Development Model Project for coping these problems from 2007.12.31 to 2008.9.30. This study is going to develop tourism network program that take advantage of enough area resources grasping problem of Gubyung-Areum village through propulsion of Cooperative Tourism Development Model Project. This study present Developing Strategies for Gubyung-Areum village through investigation, analysis and operation process.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 1997년도 Proceedings International Workshop on New Video Media Technology
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• pp.75-81
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• 1997

A new DTPP (Desk-Top Program Production) system has been developed that enables multiple program producers (directors) working at different locations to collaborate over a computer network and prepare a single program for broadcasting. In this system, information is shared among users by exchanging data edited on non-linear editing terminals in program post-production work over a network in real time. In short, the new DTPP system provides a collaborative work space for producing TV programs. The system does not make use of a special server for collaborative work but rather multiple interconnected editing terminals having the same functions. In this configuration, data at a terminal which has just been edited by some operation is forwarded to all other connected terminals for updating. This form of information sharing, however, requires that some sort of data synchronizing method be established since multiple terminals are operating on the same data simultaneously. We therefore adopt a method whereby the system synchronizes the clocks on each terminal at the time of connection and sends an operation time stamp together with edited data. This enables most recently modified data to be identified and all information on all terminals to be updated appropriately. This paper provides an overview of this new collaborative DTPP system and describes the techniques for exchanging edited data and synchronizing data.

• International Journal of Computer Science & Network Security
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• 제22권6호
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• pp.339-345
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• 2022

Outcome-based education (OBE) is a tried-and-true teaching technique based on a set of predetermined goals. Program Educational Objectives (PEOs), Program Outcomes (POs), and Course Outcomes (COs) are the components of OBE. At the end of each year, the Program Outcomes are evaluated, and faculty members can submit many recommended measures which dependent on the relationship between the program outcomes and its courses outcomes to improve the quality of program and hence the overall educational program. When a vast number of courses are considered, bad actions may be proposed, resulting in unwanted and incorrect decisions. In this paper, a recommender system, using collaborative filtering and association rules algorithms, is proposed for predicting the best relationship between the program outcomes and its courses in order to improve the attributes of the graduates. First, a parallel algorithm is used for Collaborative Filtering on Data Model, which is designed to increase the efficiency of processing big data. Then, a parallel similar learning outcomes discovery method based on matrix correlation is proposed by mining association rules. As a case study, the proposed recommender system is applied to the Computer Information Systems program, College of Computer Sciences and Information Technology, Al-Baha University, Saudi Arabia for helping Program Quality Administration improving the quality of program outcomes. The obtained results revealed that the suggested recommender system provides more actions for boosting Graduate Attributes quality.

• 기술혁신학회지
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• 제16권4호
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• pp.883-912
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• 2013

최근 경쟁우위 확보를 위한 급격한 경쟁 환경 속에서 과학기술혁신 분야의 경쟁력 제고를 위해서는 미래 주도형 원천 융합기술 개발 및 융합신산업을 육성할 수 있는 환경이 구축되어야 한다는 논의가 활발히 진행되고 있다. 이에 융합기술에 대한 지원 확대는 선택이 아닌 필수로 간주되고 있으며, 규모가 커지고 있는 융합기술 관련 R&D에 대한 투자의 효율적인 방향 모색의 필요성도 크게 대두되고 있다. 본 연구에서는 네트워크 분석을 통해서 연구 분야간에 어떤 유기적 관계를 형성하면서 융합연구가 이루어지고 있는지를 분석하였다. 대표적인 융합연구 사업인 첨단융합기술개발사업에 대한 네트워크 분석 결과, 연구 분야들간에 융합이 고르게 연계되어 이루어지고 있는 것으로 나타났다. 그러나 연계의 응집성을 나타내는 밀도분석 결과, 핵심군집에 속한 연구 분야들간에는 강한 연계성을 보이는 반면 핵심과 주변군집간의 연계 분포성은 상대적으로 미약한 것으로 나타났다. 또한 중심성과 연구 분야간 융합과제 비율에 대한 상관관계 분석결과, 연결 중심성이 낮은 분야들에서도 융합연구에 필요한 연구 역량이나 지식 자원을 보유하고 있는 것으로 나타났으며, 중심성이 높더라도 융합연구에 대한 지원 미비로 융합연구 활동이 활성화되지 못하는 경우가 있음을 본 연구결과는 제시하고 있다.

• 한국터널지하공간학회 논문집
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• 제19권2호
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• pp.213-229
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• 2017

최근 도심지 터널은 진출입 Ramp를 포함한 다양한 형태의 네트워크형 터널이 건설되고 있다. 더불어 터널환기 해석을 위한 다양한 네트워크 이론 기반의 1D 프로그램들이 개발되고 있다. 본 연구에서는 비 hardy-cross 법에 기초한 네트워크형 터널에 대한 풍량 및 농도해석이 가능한 프로그램을 개발하였다. 터널 구간내 풍량해석은 Gradient 법에 기초하고 있으며, 농도해석을 위하여 복잡한 네트워크 구조에서 유입과 유출농도를 자동계산 할 수 있는 로직을 개발하였고, 저속풍량구간에서는 수치해석적 오차를 축소시키기 위한 적정 그리드 간격을 제시하였다. 또한, 프로그램의 적정성을 검증하기 위해, 일자형 터널을 대상으로 고전적인 Sokic의 풍속 선도법 및 TVSDM 프로그램과의 풍속비교검증을 수행하였으며 오차율은 1% 이하였다. 또한 최근 건설되는 도심지 터널에 적용중인 최신 환기방식에 대한 네트워크 환기해석을 수행하였다.

• 한국멀티미디어학회논문지
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• 제6권7호
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• pp.1245-1255
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• 2003

네트워크에 대한 요구는 점차적으로 복잡해지고 그 수가 증가하고 있는 상태이다. 이를 극복하기 위해 현존하는 네트워크 노드의 구조를 프로그래밍이 가능하도록 하는 능동 네트워크 기술이 등장하게 되었다. 이것은 사용자 요구 기능을 수행할 수 있는 프로그램 코드를 전송 및 실행함으로써 통신망에 새로운 서비스를 신속하고 경제적으로 도입하여 망 자원들을 보다 적절하게 활용할 수 있도록 하는 기술 분야이다. 본 논문에서는 능동 네트워크 상에서 능동센서의 기능 및 동작 방식을 기술하기 위한 프로그래밍 언어를 제안하고 이러한 언어를 기반으로 능동센서를 용이하게 다룰 수 있는 능동센서 인터프리터를 설계 및 구현한다.