Recently ubiquitous sensor network(USN) technique has been applied into various industrial fields such as construction of u-city, civil and architectural engineering, medical areas. The main objective of this paper is to design a u-health system based on USN. Compared to the previous researches, the proposed system in this paper was designed to activate with collected information about health in outdoor environment.

Recently the information system introduction and the application which use the computer are increasing. The efficient operation of information system helps corporations to improve productivity, customer service and corporate competitive power. SaaS(Software as a Service), which is the developed type of outsourcing in the area of information technology, is to use standardized and packaged application by hosting from the outside of enterprise. SaaS is not developed yet as much as people's interest about that in the initial stage, but its related technology and service capacity are accumulated after repeated trial and error, and it's ready to activate the industry. In the area of information system, studies on the measurement of service quality were followed. But there is little study on service quality measurement in the field of SaaS(Software as a Service). The purpose of this study was to divides the SaaS with e-SERVQUAL and it consider the relationship with the perceived recognition and the usage intention. According to this, variables of traditional research were rejected because SaaS is not developed yet in Korea. But information had a strong effect on perceived recognition. Therefore, business related with in SaaS must have provided a correct information about various applications.

온라인 광고 시장은 사용자에게 무료로 정보를 제공하고 디지털 경제를 이끄는 수단이지만 동시에 온라인 맞춤형 광고에는 사용자에 관한 정보 침해의 우려가 존재한다. 온라인 광고 형태의 발달로 개인형 맞춤형 광고의 도입이 멀지 않은 지금 온라인 맞춤형 광고 시장의 발전과 개인에 관한 정보 보호의 균형을 어떻게 이룰 것인가를 미국 FTC와 EU의 가이드라인에 비추어 살펴 보고자 한다. 사용자 정보 보호를 위해 사업자는 사용자에게 사용자에 관한 정보가 언제, 어떻게 수집되고 사용되며, 사용자로부터 수집된 정보, 또는 사용자에 대해 수집된 다른 정보들은 어떻게 결합이 되어 사용되는지 사용자에게 알기 쉽고 발견 하기 좋은 곳에 개인정보보호정책을 게시하고, 사용자가 그러한 정보의 수집과 이용에 동의하지 않는 경우 수집과 이용을 손쉽게 거절할 수 있는 방법을 제공하고, 수집된 정보에 대한 물리적, 기술적인 보안이 철저히 이루어지도록 해야 한다. 또한 13세 미만의 어린이로부터의 정보 수집은 반드시 부모의 동의가 있어야 하고, 민감한 정보는 수집과 이용이 아예 금지되거나 사용자의 명시적 동의가 있을 경우에만 이용하도록 해야 한다. 그리고 현재 사업자들이 채택하고 있는 기술적, 정책적 우수 사례를 연구하여 다른 사업자들에게도 제안하고자 한다.

The purpose of this research is to develope street trees management program for more an effective street trees management. The principal point of this program is to relate spatial data and attribute data that is the main concept in GIS(Geographic Information System). To do this function, MapObjects which is ESRI's mapping and GIS components was used to process spatial data and Access which had been developed by MS was used to manipulate attribute data in this program. Visual Basic also was used to design and develop user interfaces and procedures, relate two sort of data, and lastly complete Application. Relational data model was adopted to design tables and their relation, Antenucci's GIS development model was selected to design and complete this program. The configuration of this application is composed of management data and reference data. The management data includes the location of street tree, a growth condition, a surrounding environment, the characters of tree, an equipments, a management records and etc. The reference data include general information about tree, blight and insects.

온라인 게임을 비롯한 많은 인터넷 매체 중에 사회적 통제를 요구하는 유해한 동영상이 아무른 재제 없이 무분별하게 배포됨으로서 심각한 역기능이 발생되고 있다. 이는 청소년의 정신 건강에 큰 문제를 발생하게 되면 사회적, 제도적 규제가 절실하다. 본 논문에서는 영상이 가지는 컬러 공간 정보를 이용하여 동영상의 유해성을 판별할 수 있는 대표 프레임 선정 기법을 제안한다. 이 기법을 기존의 히스토그램 정보를 이용한 유해한 대표 프레임 선정 기법과 비교하여 매우 효과적임을 증명하였다. 본 연구 결과는 유해 동영상을 판별하는 도구에 적용하면 매우 효과적일 것이다.

예로부터 선장은 경험적으로 기상, 선박 제원 상태 및 운항 일정을 고려하여 최적의 항로를 선택하여 항해하여 왔다. 이는 선장의 경험을 바탕으로 해류나 파랑에 대한 기상 예보 정보를 활용하여 최적항로를 결정하는 것으로 아직까지 선상에서 항로 결정을 보조해주는 디지털화한 시스템은 그 사례를 찾아보기 힘들다. 본 논문에서는 선박의 운항 효율성과 안전성의 관점에서 구성된 선상 최적 항로 안전 평가 시스템을 소개한다. 선사와 선장이 요구하는 효율적인 항해를 위해서는 도착예정시간 및 연료소모량을 최소로 하는 최적 항로를 구한다. 이는 선박의 파랑 중 부가저항에 기초를 둔 선속 저하 빚 마력 증가를 고려하여 계산한다. 안전성 관점에서는 3D 판넬법에 기초를 둔 선박의 내항 계산을 본 시스템에서 구현하여 내항 평가를 수행하며, 최종적으로 선박의 항로 안전 계획 및 평가를 위한 보조 수단이다.

  In this paper the economic value of weather forecasts is valuated for profit-oriented enterprise decision-making situations. Value is estimated in terms of monetary profits (or benefits) resulted from the forecast user’s decision under the specific payo

The purpose of this study was to research eating-out information search methods according to college student's lifestyle and their influences on overall satisfaction at fast-food restaurants in eastern province of Kangwondo. Lifestyle was divided into 7 factors and 6 clusters. According to the results, information search methods through Newspaper, magazine and word of mouth were used the most preferably by Cluster 3, 'Brand preference intention'. And TV advertising was used the most preferably by Cluster 4, 'Convenience intention', and the advertisement through internet was used the most preferably by Cluster 5, 'Health · effort intention'. However, Information searches through TV advertising and word of mouth had negative influence on the overall satisfaction. But method through internet had positive influences on the overall satisfaction. Eventually, it's proved that information search methods had significant differences according to student's lifestyle. And some information search methods influenced their overall satisfaction. Therefore, food-sonics corporations need to try reducing negative images of various advertisements and activating positive aspects of specialized promotion instruments.

A manufacturing information system, which collects manufacturing information from the shop floors and supply them to higher level systems, should be maintained and upgraded according to the change of production environment such as new product introduction. This situation leads to the need of a cost-effective system development methodology. In this paper, a methodology based on the classification and the similarity comparison of manufacturing processes is proposed. In this, a new product is classified according to the similarity of its manufacturing processes, which enables recycling of existing system modules. The proposed methodology has been tested in the case of an electronics parts manufacturing company, where an information system is implemented. The result shows that the proposed methodology can save time and efforts for system implementation

이 논문에서는 2002년 9월 태풍 루사로 인해 많은 재해 피해를 입은 강원도 강릉시 사천천 유역을 대상으로 다중 시기 원격탐사 자료를 이용하여 퇴적 지질환경 변화 정보를 추출하고 분석을 수행하였다. 다중 시기 자료에 대해 자동 임계치 설정 기반 무감독 변화 탐지 기법을 적용하여 여러 시기 및 센서별 변화 정보를 추출하였다. 변화탐지 결과, 제외지에서는 태풍 루사 직후 하천 탁도 변화, 습지의 수계 혹은 퇴적물로의 변화 및 계절적인 유량 차이에 의한 하도 노출 여부 등으로 변화지역이 나타났다. 주변 농경지에서는 홍수 및 산사태 등으로 인한 토사의 퇴적, 농지 개간 등으로 인한 변화가, 기타 지역에서는 제방 공사 등으로 인한 변화가 두드러지게 나타났다. 노한 야외 조사와 원격탐사 자료를 이용하여 미지형 분류도, 범람원 지역 지표 퇴적량 분포도 및 수해 지형 분류도를 작성하였다. 결론적으로 다중시기 고해상도 원격탐사 자료가 재해로 인한 변화 정보 추출에 유용하게 활용될 수 있을 것으로 기대되며, 이를 위해 고해상도 자료에 적합한 자료처리 기법 개발이 병행되어야 할 것으로 판단된다.

The objective of this study was to identify the primary source of radon in Seoul subway stations, and to investigate a relationship between geology and radon. Especially, we expected that the granite areas would have substantially high levels of radon in subway stations. The indoor radon concentrations in subway stations were lognormally distributed. The geometric mean and geometric standard deviation of indoor radon concentration were 48.11 Bq/㎥ and 2.15, respectively. Indoor radon concentrations of eight measuring sites exceeded U.S. EPA criteria (148 Bq/㎥). The geological structure of the subway station regions under this study is characterized by biotite granite, alluvium, banded biotite gneiss and diluvium. Results indicate that bedrock geology can account for a significant portion of the indoor radon in subway stations. Indoor radon concentrations of one subway station were higher than those of other stations. The bed rock in this particular subway station was that of alluvium. We assumed that the unusual increase in measured radon concentration should be related mainly to the existence of the near inferred fault zone (p<0.0001). We selected ten subway stations with homogeneous bedrock type in order to compare radon concentrations of each basement level. There was a significant difference in radon concentration, depending on the basement levels in subway stations (p<0.05).

The facility location in designing a supply chain network is an important decision problem that gives form, structure, and shape to the entire supply chain system. Location problems involve determining the location, number, and size of the facilities to be used. The optimization of these location decisions requires careful attention to the inherent trade-offs among service time, inventory costs, facility cost, transportation costs. This paper presents a strategy that provides the best locations of distribution centers using GIS(Geographical Information System) assuming the limitation of delivery time. To get the best strategy of the location of distribution centers, we use the new loss functions as a penalty when the delivery time is violated.

In this paper, the stiffness and damping matrices are experimentally constructed using the structural modal information on frequencies, damping ratio and modal vectors, which are obtained by shaking table tests. Free vibration, harmonic and white noise vibration tests are performed. The acceleration of the shaking table was used as the input signal, and the resulting accelerations of each floor were measured as output signals. The characteristics and limitations of modal information from the each test are compared. The results of this study would be a basic resource of the analytical and experimental studies on the system identification of structures

In large scale complex system such as a nuclear power plant, it is important to select guidelines and/or checklist to evaluate the system performance, especially human performance for visual information while the number of evaluation items of the guidelin

Manufacturing firms have adapted seriously the Design for Manufacture and Assembly (DFMA) techniques which consider concurrently all factors related to the product development by using effective communications and sharing of information on product development processes. This study performed modelling and characterizing the data related to product manufacturing information for Design for Manufacture(DFM) evaluation and analysis. It adapted component-based development method for communicating and managing manufacturing information among distributed manufacturing organizations. Introducing component-based development offers safety and speed to network based system. This development using Unified Modelling Language(UML) provides efficient way for reconstruction and distribution of applications. Also, the integration of database and component into the internet environment enables to communicate and manage effectively manufacturing information for DFM evaluation and analysis at any place in the world. Therefore this system can make it more reasonable that evaluating, analyzing, and effective decision making of product design using DFM technique.

이 연구는 전자해도(ENC) 데이터를 이용한 현실감 있는 3차원 해상환경 데이터베이스를 제작하는 방법에 관한 것이다. 종이해도로부터 해안선, 등심선, 수심 및 항로표지와 같은 정보를 수작업으로 이산화해서 얻는 기존의 방법에 비해, 본 연구에서 제안하는 방법은 각종 정보를 전자해도 데이터로부터 직접 얻을 수 있기 때문에 기존의 방법보다 손쉽고 정확하게 해상환경 데이터베이스를 제작할 수 있다. 또한 국제수로기구(IHO)의 표준규격(S-57)에 따라 제작되어 전 세계적으로 통일된 규격을 가지고 있는 전자해도 데이터를 이용함으로써 국내 및 외국항에 대한 데이터베이스를 정확하게 제작할 수 있으며, 해상환경 데이터베이스 제작 이외에도 해도의 경.위도 정보를 사용하는 여러 연구 분야에 유용하게 사용될 것으로 판단된다.