• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2008년도 추계학술대회 논문집
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• pp.229-234
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• 2008

The new millennium has started with several innovations driven by fast evolution of the technologies in energy sector. A strong impulse towards the diffusion of new economical efficient technologies regulatory incentives related to energy production from renewable source and a small scale building trigeneration and to promotion of more sustainable environmental-friendly generation solutions, the evolution of electricity markets, more and more binding local emission constraints, and the need for improving the security of supply to reduce the energy system vulnerability. The 24 percentage energy quantify of total energy consumption consumes in commercial buildings and residential houses and the 30% portion of total $CO_2$ emissions covers also in the commercial buildings and residential houses sector. To cope with efficiently this energy sinuation in building sector, Building microgrid or building tooling, heating & power(BCHP) system has been interested in recent day due to meeting thermal and electric energy requirements efficiently and with appropriate energy quality. A multi agent system is a collective of intelligent agents that communicate with each other and work cooperatively to achieve common goals. Also, it is to medicate and coordinate communication between Control Areas and Security Coordinators for teal-time control of the BCHP system and the power pid. In this new circumstance, it is very important to integrate the power and energy delivery system and the information system(communication, networks, and intelligent equipment) that controls it. Therefore, development of smart control modules with open communication protocol and seamlessly interchange the data and information between control network and data network including extranet and intranet give a great meanings. We designed and developed the TCP/IP-CAN IED agent modules and ModBus./LonTalk/(TCP/IP) IED agent ones to configure the multi-agent system based smart energy network of commercial buildings and also intelligent algorithms for inverter fault diagnostics which ran be operated in control level or agent level network.

• 한국노년학
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• 제30권4호
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• pp.1263-1280
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• 2010

본 연구의 목적은 조선족 간병인의 문화적응 경험에 관한 연구이다. 연구 분석은 Berry(1987)의 문화적응 단계를 인용하여 접촉단계, 갈등단계, 해결 단계로 나누어 조선족 간병인들이 각 단계에서 어떤 경험을 하는지 그 의미를 질적연구 방법을 통해 분석하였다. 접촉단계에서 조선족 간병인은 간병인에 대한 긍정적인 이미지 전환과 연륜의 직업에 의미를 부여하였다. 간병인을 시작하기 전 연구 대상자들은 주변사람들의 영향으로 간병인에 대한 인식이 긍정적으로 변화됐으며, 연령이 많아짐에 따라 간병인이 적합한 일자리가 되었다. 갈등단계에서 조선족들은 차별, 문화적 갈등, 힘든 업무, 부정적 이미지, 타지에서 외로움을 경험하였다. 차별의 경우 조선족이라는 이유만으로 거부와 임금 차별이나 근로조건 등에서 한국인 간병인보다 더 열악한 수준에서 일하는 경우가 많고, 육체적, 정신적으로 힘든 어려움을 경험하고 있었다. 게다가 주위 친지나 가족으로부터 간병인에 대한 부정적 이미지로 인해 내외적 갈등을 경험하기도 했으며, 중국에 거주하는 가족과 떨어져 있기 때문에 외로움을 경험하고 있었다. 이러한 어려움에도 불구하고 해결단계에서 간병인으로 종사하면서 얻는 직간접적인 사회경제적 정서적 혜택은 그들이 한국사회에 적응하는데 큰 역할을 하고 있는 것으로 나타났다. 그 이유로는 이들이 경제적 요인, 일의 보람, 환자 및 보호자 그리고 동료들과의 친분, 일의 자유로움, 일의 안정성, 자부심에서 찾을 수 있었다.

• Environmental Analysis Health and Toxicology
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• 제28권
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• pp.9.1-9.5
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• 2013

Objectives Geographic Information Systems (GIS) is a powerful tool for assessing exposure in epidemiologic studies. We used GIS to determine the geographic extent of contamination by perfluorooctanoic acid, C8 (PFOA) that was released into the environment from the DuPont Washington Works Facility located in Parkersburg, West Virginia. Methods Paper maps of pipe distribution networks were provided by six local public water districts participating in the community cross-sectional survey, the C8 Health Project. Residential histories were also collected in the survey and geocoded. We integrated the pipe networks and geocoded addresses to determine which addresses were serviced by one of the participating water districts. The GIS-based water district assignment was then compared to the participants' self-reported source of public drinking water. Results There were a total of 151,871 addresses provided by the 48,800 participants of the C8 Health Project that consented to geocoding. We were able to successfully geocode 139,067 (91.6%) addresses, and of these, 118,209 (85.0%) self-reported water sources were confirmed using the GIS-based method of water district assignment. Furthermore, the GIS-based method corrected 20,858 (15.0%) self-reported public drinking water sources. Over half (54%) the participants in the lowest GIS-based exposure group self-reported being in a higher exposed water district. Conclusions Not only were we able to correct erroneous self-reported water sources, we were also able to assign water districts to participants with unknown sources. Without the GIS-based method, the reliance on only self-reported data would have resulted in exposure misclassification.

• 보건교육건강증진학회지
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• 제26권1호
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• pp.63-80
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• 2009

Objectives: This study identified how personal characteristics, healthy behavior and social capital might influence on physical activity of adults. Methods: This study used data from the health survey of a city of Korea. We surveyed 1,000 adults sampled by stratified sampling methods from 67,889 households. Outcome variable was the stage of physical activity which was broken into 5 categories. Sociodemographic factors, healthy behavior, self-rated health status and social capital were used as control variables. Sociodemographic factors included age, sex, educational status, economic status measured by deprivation score, residential period within survey city. Social capital was measured by Integrated Questionnaire for the Measurement of Social Capital (SC-IQ). This study used chi-square test and ordered logistic regression models to examine the associations between independent variables and physical activity. Variables were added to the regression model in three groups using a hierarchical approach. Results: Physical activity was significantly more likely to become active if they have higher educational status, healthier behavior. Among the six dimensions of SC-IQ, only "groups and networks" that is structural dimensions of social capital and "trust and solidarity" that is cognitive dimensions of social capital were significantly related to physical activity of adults. We found that a person having higher density of membership and having larger size of networks showed the high possibility of active physical activity. A person having high solidarity was significantly associated with physical activity, but general trust was inversely related to physical activity. Output dimensions of social capital did not show significant relationship to physical activity. Conclusion: We found that social capital is useful concept to explain health behaviors like physical activity. However we must consider social, cultural and political context of the study to evaluate the effect of social capital to health status and health determinants and to capture the exact meaning of relationship between them. We suggest further researches to refine the concept of social capital and to explain the relationship of social capital to diverse health determinants.

• 한국실내디자인학회논문집
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• 제22권5호
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• pp.258-266
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• 2013

Rapidly aging society extends the span of aged life of the elderly people longer than before and this trend raises the issue of holistic health of the aged including their physical, psychological and social health making it necessary to study for environmental development to support this trend. This study intends to explore the direction of residential planning to support the deterioration phenomenon of social networks due to aging. Social networks here are treated as basic conditions for social health. This study researched the diverse types of elderly housings in preparation for the aged society and their spatial characteristics, social affordance characteristics and their potentials for social interactions from the viewpoint of their social relations. literature studies with contents analysis method was used. The results of this study were arranged primarily according to the characteristics of social relations by types of housings. Socially integrated types of housings can be found as inclusive housing type as they have both social characteristics that can be found in houses in general and the elderly housings, they should be considered as desirable types in Korea where collective houses are most popular. Form the existing housing plans housing plan direction should move toward socially integrated housing plans that can protect the elderly people collectively and the direction of housing plans here means the direction from more macro-perspective viewpoint. Therefore, the results of this study are meaningful in adding interpretation from the viewpoint of social relations respective housings and promoting housings for the elderly people more desirably.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권1호
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• pp.406-425
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• 2012

Deploying advanced home networking technologies and modern home-networked devices in residential environments provides a playground for new home applications and services. Because home multimedia entertainment is among the most essential home applications, this paper presents an appealing home media content sharing scenario: home-networked devices can discover neighboring devices and share local media content, as well as enormous amounts of Internet media content in a convenient and networked manner. This ideal scenario differs from traditional usages that merely offer local media content and require tedious manual operations of connection setup and file transfer among various devices. To achieve this goal, this study proposes a proxy gateway architecture for home multimedia content distribution. The proposed architecture integrates several functional mechanisms, including UPnP-based device discovery, home gateway, Internet media provision, and in-home media content delivery. This design addresses several inherent limitations of device heterogeneity and network interoperability on home and public networks, and allows diverse home-networked devices to play media content in an identical and networked manner. Prototypical implementation of the proposed proxy gateway architecture develops a proof-of-concept software, integrating a BitTorrent peer-to-peer client, a UPnP protocol stack, and a UPnP AV media server, as well as media distribution and management components on the OSGi home gateway platform. Practical demonstration shows the proposed design and scenario realization, offering users an unlimited volume of media content for home multimedia entertainment.

• 부동산연구
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• 제27권1호
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• pp.17-32
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• 2017

주거공간의 개방성은 채광, 조망, 환기에 직접적인 영향을 끼치는 특성으로, 단위세대의 개방성 확보를 위해 아파트의 평면유형이 다양화되고 있다. 그러나 개방형 평면유형과 주택가격과의 관계를 분석한 연구는 부족한 실정으로 본 연구는 개방형 평면 유형이 아파트 가격에 미치는 영향을 실증 분석하고자 한다. 이를 위해 개방형 평면유형과 베이수, 발코니비율, 공간 당 외부접면비율 등의 평면개방정도와 형태를 변수화하고, 2006년부터 2015년까지 120개월간 강남구에서 거래된 아파트 자료를 기반으로 헤도닉 가격모형과 인공신경망 모형을 통해 비교분석하였다. 분석결과, 베이수, 공간 당 외부접면 비율이 높을수록 아파트 가격은 상승하며, 개방형 평면 유형은 3면 개방형 평면, 직각 개방형 평면, 양면 개방형 평면, 1면 개방형 평면, 복합 개방형 평면 순으로 가격이 높은 것으로 나타났다. 이러한 연구결과는 향후 신축 및 재건축시 사업자가 평면설계에 있어 소비자의 선호를 반영하고 구매자의 경우에도 평면유형에 따른 가치파악을 위한 시사점을 제공할 수 있다.

• 정보처리학회논문지A
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• 제11A권3호
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• pp.109-114
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• 2004

최근 무선 랜의 확산과 블루투스 등의 개인 무선 통신의 발전으로 네트워크 환경은 점차 유무선 구분 없이 쉽게 네트워크에 접속할 수 있도록 변화되고 있다. 또한, 가정 내의 노트북, PDA 등의 네트워크 군기의 증가는 초고속 인터넷 라인을 공유하여 이용하고 기기 간에 네트워크를 구성해 작업하는 환경을 필요로 한다. 본 논문에서는 유무선 네트워크에 구분 없이 손쉽게 연결할 수 있고 인터넷에 접속할 수 있는 다중 네트워크 인터페이스를 지원하는 유무선 통합 액세스 포인트를 개발하여 기능을 시험하고 성능을 검증하였다. 각기 다른 네트워크간의 통합을 이루고 성능을 보장하기 위한 시스템 하드웨어 설계, 개발 단계부터 프로토콜 소프트웨어 개발까지 실질적 개발내용을 기술하고, 다양한 형태의 기기를 통한 네트워크 접속 시험을 통해 연동 및 성능에 대한 결과를 보였다.

• Journal of Power Electronics
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• 제18권2호
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• pp.573-587
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• 2018

Recently evolved power electronics' based domestic/residential appliances have begun to behave as single phase non-linear loads. Performing as voltage/current harmonic sources, those loads when connected to a three phase distribution network contaminate the line current with harmonics in addition to creating a neutral wire current increase. In this paper, an enhanced performance three phase four leg shunt active power filter (SAPF) controller is presented as a solution for this problem. The presented control strategy incorporates a hybrid predictive fuzzy-logic based technique. The predictive part is responsible for the SAPF compensating current generation while the DC-link voltage control is performed by a fuzzy logic technique. Simulations at various loading conditions are carried out to validate the effectiveness of the proposed technique. In addition, an experimental test rig is implemented for practical validation of the of the enhanced performance of the proposed technique.

• 한국생활과학회지
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• 제13권2호
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• pp.225-235
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• 2004

The purpose of this study was to evaluate and to analyze the spatial composition by block plan of the free elderly facility and to provide basic information for building up the detail architectural guidelines. The results of the study were as follows: Elderly welfare law needed to control the poor physical environments of the free elderly facility such as the residential space for more than 4 individuals. The facility of single building type should strengthen the informal support networks through the dispersion of public spaces or should encourage moving of the residents through the outdoor space, especially in rural area. On the other hand, the linking type needed to focus on the administrative spaces on the first floor for the managerial convenience, and to group and disperse the public/recreational spaces to decrease the unnecessary moving of the residents and staffs. The passageway linking building to building should directly connect each administrative space or public space so that elderly used them without any inconvenience. In the dispersion type, which is suited to rural area, the lounge, dining hall, and the place for the staff on duty should be located in the same as the residence building for the convenience and the safety of the elderly residents.