디지털 헬스케어를 위한 본질적 유연 전자소자 기술

구자훈 ( Ja Hoon Koo ) 한국공업화학회 2023 공업화학전망 Vol.26 No.3

Conventional bioelectronic devices used in industry and medical fields are typically made of high-quality metals and inorganic materials, which pose critical challenges for long-term signal monitoring and feedback stimulation. In specific, the mechanical mismatch between the biotic-abiotic interface and non-conformal contact of the bioelectronic devices on target biological tissues trigger chronic immune response and inflammatory reactions. Recent progress in intrinsically stretchable materials and device technology allows for the fabrication of bioelectronic devices with mechanical properties similar to those of the target biological tissues, enabling their conformal integration and in turn their long-term stability in vivo. In this article, we provide a brief review on such intrinsically stretchable materials and device technology, with a focus on their application to digital healthcare technology.

토지이용계획의 용도별 적지분석에 있어서 퍼지이론 및 계층분석과정 ( AHP ) 의 활용 - 포항시 첨단연구단지의 사례분석을 중심으로 -

구자훈(Ja Hoon Koo),성금영(Keum Young Sung) 한국지리정보학회 2001 한국지리정보학회지 Vol.4 No.1

The Boolean logic analysis method using GIS as a spatial decision support system(SDSS) contains two problems. One is losing a lots of informations in analysis process, the other is unable to reflect of different weights between analysis items. The purpose of this study is to provide a new decision-making model for site analysis, that provides a rational and systemic way using fuzzy sets theory and analytic hierarchy process(AHP) theory. According to this study of technopark in Pohang, Boolean logic method did not reflect the influence of the differently weighted items and selected only 8.0% to 16.1% of the area for suitable sites for residence, commercial/research, park/green uses. The fuzzy sets theory and AHP theory method were able to reflect the influence of differently weighted items and selected 32.9% to 37.4% of the area for the best sites, and also provided more other kinds of informations. The results of this study show that GIS system using fuzzy sets theory and AHP proess method provides a more flexible and objective solutions for site analysis.

철골기둥 고온 압축강도 설계기준식 평가

구자훈(Koo, Ja Hun),이철호(Lee, Cheol Ho),신동진(Shin, Dong Jin),안재권(Ahn, Jae Kwon) 한국강구조학회 2021 韓國鋼構造學會 論文集 Vol.33 No.1

이종 IoT 플랫폼 디바이스 식별체계 상호연동에 대한 연구

구자훈 ( Ja-hoon Koo ),김영갑 ( Young-gab Kim ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2

현재 사물인터넷(Internet of Things; IoT) 기술을 이용한 스마트홈 환경을 구축하기 위해서는 같은 식별체계를 사용하는 플랫폼 디바이스를 사용해야 한다. 그러나 주요 IoT 플랫폼들은 각각 다른 식별체계를 사용하고 있기 때문에 이종 플랫폼 간 디바이스 식별이 어려운 상황이다. 이종 플랫폼 간 디바이스 식별체계 상호연동에 대한 연구는 진행 중이며 아직까지 해결책은 제시되지 않았다. 따라서 본 논문에서는 주요 IoT 플랫폼인 oneM2M, GS1 Oliot, IBM Watson IoT, OCF IoTivity의 디바이스 식별체계를 분석하고 비교하여 서로 다른 플랫폼 간 디바이스 식별체계에 대한 번역기 또는 해석기의 필요성과 개념모델을 제시한다.

持續 可能한 開發 觀點에서 본 浦港市 都市構造 패턴에 關한 硏究

具滋勳(Koo Ja-Hoon) 대한국토·도시계획학회 2000 國土計劃 Vol.35 No.2

The purpose of this study is to evaluate the spatial structure, land use and transportation policies of Pohang in light of the concept of Environmentally Sound and Sustainable Development (ESSD). This study is, firstly. to review the worldwide trends on sustainable development, and to find out the applicable policy directions for Pohang. Secondly, this study is to analyze the current spatial structure and its changes of Pohang with the techniques of Geographic Information System(GIS). Thirdly, based on these results, this study tries to find out the future land use and transportation policy directions for Pohang. The results of this study are as follows. 1) It is recommended for Pohang to adopt the decentralized concentration policy which is to develop a downtown and two sub-centers in high density while to keep other areas in low density. 2) It is recommended to decrease the development density in city areas and to reduce the slope standards for the development areas. 3) It is recommended to increase the capacity of public transportation and to discourage the use of private cars. 4) It is recommended to connect downtown and two sub-centers by newly developed high capacity public transportation system and to increase the built-up densities around the public transportation lines and the station areas.

一般住居地域의 住居環境 實態 및 住民認識에 관한 事例調査

具滋勳(Koo Ja-Hoon) 대한국토·도시계획학회 1998 國土計劃 Vol.33 No.6

The purposes of this study are to survey the qualities of residential neighborhood environments and residents’ perceptions on their environment in Seoul. In order to find out the qualities and perceptions on their environments, two case study areas in Seoul were chosen and investigated. According to the survey results, 82% of respondents in case study areas pointed out the necessity of their neighborhood improvement. Various problems in residential areas were identified. They were : shortage of parking lots, inconvenience in garbage collection, overcrowding, noise and dusts at the construction sites, occupying road spaces by commercial activities and construction works. and etc. Also, Respondents pointed out the importance of the neighborhood-initiated programs which would taken care of the area specific problems in residential areas.

도시재생 전략으로서 도시디자인 정책방향 및 개선과제 고찰

구자훈(Koo, Ja-Hoon),신예철(Shin, Yea-Cheol) 대한국토·도시계획학회 2013 國土計劃 Vol.48 No.6

The Purpose of this study is to consider the improvement issues of urban design policy for creating a sustainable foundation of daily life. Recently, as urban design and public spaces are being more and more recognized as important to people, the concern about urban design policies and projects has also increased, which is why both the national and local government are coming up with plans and support projects concerning urban design. However, the recent urban design policies and projects have been criticizing for focusing physical and visual facilities-oriented design not close to citizen’s daily life. and there is insufficient urban design system possible to manage the urban space because of focusing the project performance. This study investigates trends in urban design policies in London, New York, Bilbao and Yokohama as leading overseas cities. As a result of case study, it showed that urban design policy would be promoted on place/identity, Master Plan, Strategy based on local life and context, citizen participation, organic cooperation network in between organization, and reestablishment of the public roles, not improving environment based on physical facilities and showing the project performance.

클라우드 기반 미래 한국군 C4I 체계 보안 아키텍처 설계

구자훈(Jahoon Koo),오세라(Se-Ra Oh),이상훈(Sanghoon Lee),김영갑(Young-Gab Kim) 한국통신학회 2019 한국통신학회 학술대회논문집 Vol.2019 No.6

서울시 골목길 담장허물기의 여부에 따른 주민의 사회적 활동의 양적 차이 비교 분석

구자훈(Koo, Jah-Hoon),김슬옹(Kim, Seul-Ong),노정민(Ro, Jung-Min) 한국도시설계학회 2011 도시설계 : 한국도시설계학회지 Vol.12 No.4

본 연구는 비슷한 물리적 환경을 가진 두 지역에서 담장허물기 여부에 따라 나타나는 주민의 활동 차이와 이 활동이 어떤 물리적 요소와 연관되어 나타나는지를 분석하고자 한다. 조사ㆍ분석 결과 첫째, 담장허물기 사업구역의 골목이 사업을 시행하지 않은 골목보다 사회적 활동종류가 다양하였고 활동 횟수도 많았다. 둘째, 사회적 활동 유형별 활동발생은 담장허물기 사업구역의 골목에서는 앉는 행동을 지원하는 자원을 포함하는 대화+휴식 중심활동이 가장 많이 일어났고, 사업을 시행하지 않은 골목에서는 물리적 자원의 영향을 덜 받는 대화 중심활동이 가장 많이 일어났다. 셋째, 골목길별 사회적 활동상황은 담장허물기 사업구역의 골목에서는 총 8곳의 사회적 활동상황의 유형이 관찰되었으며, 각 활동을 지원하는 물리적 자원은 의자, 석재벤치, 개방된 마당으로 나타났다. 결론적으로 담장허물기를 시행할 경우, 거주민들의 외부 활동상황이 많음을 알 수 있으며, 따라서 향후 외부활동 상황을 고려한 사업시행이 필요함을 알 수 있다. This study tries to analyze the differences of inhabitant’s activities between the physical factor and the activity at two community alleys with similar physical environment depending on whether the green parking project is conducted or not. As a result, first, a variety and frequency of the number of social activities on the street at green parking areas are more larger than the street at non-green parking areas. Second, the types of social activities at green parking areas are mainly those of conversation and rest with physical elements, which lead to sitting down and taking a rest. On the other hand, conversation activities most often occur at non-green parking areas, which relatively are less affected on physical resources such as a bench or a grassy area. Third, eight types of social activities are observed at green parking areas with a bench(chairs), a stone bench, and an opened yard as providing the physical components. In conclusion, on the case of the green parking project, the result shows various and many outdoor activities of inhabitants. Therefore, it is necessary to consider the relationship of inhabitants’ outdoor activities and physical resources, which compose a community alley when green parking project is planned and designed further.

서울특별시 골목길 담장허물기에 따른 주민의 사회적 활동 및 참여자 특성 분석

구자훈(Koo, Jah-Hoon),김슬옹(Kim, Seul-Ong) 한국도시설계학회 2009 도시설계 : 한국도시설계학회지 Vol.10 No.3

본 연구는 담장허물기사업으로 인한 골목길의 물리적 환경변화에 따라 직접적으로 영향을 받을 것으로 예상할 수 있는 주민들의 사회적 활동변화와 이 사회적 활동에 참여하는 주민의 인구특성을 알아보기 위한 연구이다. 이를 위해 서울시 담장허물기사업구역 중 예비조사를 통해 3곳의 연구대상 골목을 선정하고 이와 비교할 수 있는 3곳의 대조군을 선정하여 연구를 진행하였다. 조사·분석결과 첫째, 담장허물기를 실시한 곳은 그렇지 않은 곳에 비해 주민들이 상호교류 할 수 있는 공간이 증가하였다. 둘째, 담장허물기사업을 실시한 곳의 경우 사회적 활동의 발생빈도 뿐만 아니라 사회적 활동참여자 수와 성별-연령계층의 다양성 증가가 나타났다. 셋째, 사회적 활동의 유형 및 종류도 담장허물기를 시행하지 않은 경우에 비해서 증가하는 것으로 나타났다. 이러한 결과를 바탕으로 골목길 커뮤니티의 물리적 환경 구성에 있어 거주민들이 상호 교류하는 사회적 활동에 상대적으로 바람직한 물리적 환경이 어떤 것인지 알아 볼 수 있었으며, 이는 향후 골목길 커뮤니티를 구성하는 물리적 환경설계에 시사점이 될 수 있다고 생각한다. One of major purposes of the Green Parking project that has been doing since 2004 in Seoul Metropolitan city is to remove walls of detached houses for parking spaces and improving environment of side streets. It makes intermediate spaces, which could be a probability for a recovery of sense of community, between private space and a side street. This article, therefore, tried to analyze the changed social activities which caused by Green Parking project. First, the results indicate not only the increasing frequency of social activities, but also the increasing number of participants who take part in social activities than before the project. Second, the age structure of the participants is diversified, and types of social activities that are generated in Green Parking area are increased. Consequently, this study concludes that new spaces created by the project have profound effects upon people’s behavior on side streets. Therefore, this study can give some suggestions on what kind of milieu is more appropriate environment for side street communities.