• 한국주거학회:학술대회논문집
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• 한국주거학회 2005년도 추계학술대회 논문집
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• pp.189-192
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• 2005

The purpose of this study is to analyze space composition and size of the Master Zone in the apartment unit plan. For this, we analyzed 435 samples by searching web-sites of the 5 main construction companies. The major results of this study are as follows. 1) Master Zone is organized 4 spaces such as main room, bathroom and make-up & dress room. Six types of Master Zone are classified with the composition of 4 spaces. 2) The size of the Master Zone is increased in proportion to the square meter. But the range of the ratio is small range of fluctuation as 20%${\sim}$30%. 3)The size and ratio of the each spaces of the Master Zone are analyzed. The size of bedroom is increased but the ratio is decreased. The size of bathroom is increased but the ratio is regular as 4%${\sim}$5%. The size of make-up and dressing room is generally increased but the range of the size and ratio is the most extensive. Through this analysis and research, this study would be provied the basic data for actual housing planning and to contribute to future trends of apartment houses.

• 사물인터넷융복합논문지
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• 제6권4호
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• pp.81-87
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• 2020

본 논문은 스마트 팩토리(Smart Factory) 디지털 트윈(Digital Twin) 구축을 위해서 다양한 산업용 센서(IoT/비 IoT)로부터 센서데이터를 획득하기 위한 표준 노드(Node)를 생성하고 그룹별/공정별 존(Zone)을 연동하여 상호호환적인 데이터의 교환 기능을 제공함으로써 데이터의 안정성을 확보하고 스마트 팩토리의 디지털 트윈(Digital Twin)을 위한 효과적인 존 마스터(Zone Master) 플랫폼 구축 방안을 제시하였다. 존 마스터(Zone Master) 플랫폼의 Process는 독립된 시스템 간의 센서 객체 및 센서 상호작용이 어떻게 수행하는지를 정의해 주기 위한 인터페이스 명세를 포함하고 있으며 고유의 데이터 교환 규칙에 대한 개별 정책들을 수행하고 있다. 존 마스터 플랫폼 프로세서의 실행 통제를 위한 인터페이스는 시스템관리, 자료교환의 협상(publish-subscribe)을 위한 선언 관리, 센서 객체의 등록 및 상태 정보를 통신하기 위한 객체 관리, 속성 소유권 공유를 위한 소유권 관리, 데이터 동기화를 위한 시간 관리, 데이터 교환에 대한 Route 정보를 위한 자료 분배 관리를 제공한다.

• 디지털산업정보학회논문지
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• 제9권4호
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• pp.95-101
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• 2013

MANET has an advantage that can build a network quickly and easily in difficult environment to build network. In particular, routing protocol that uses in existing mobile environment cannot be applied literally because it consists of only mobile node. Thus, routing protocol considering this characteristic is necessary. Malicious nodes do extensive damage to the whole network because each mobile node has to act as a router. In this paper, we propose technique that can detect accurately the suspected node which causes severely damage to the performance of the network. The proposed technique divides the whole network to zone of constant size and is performed simultaneously detection technique based zone and detection technique by collaboration between nodes. Detection based zone translates the information when member node finishes packet reception or transmission to master node managing zone and detects using this. The collaborative detection technique uses the information of zone table managing in master node which manages each zone. The proposed technique can reduce errors by performing detection which is a reflection of whole traffic of network.

• 환경영향평가
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• 제12권1호
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• pp.1-8
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• 2003

The Master Plan of Natural Environment Conservation in Korea by Ministry of Environment has been carried out since 1986. The 2nd 10-year survey started in 1997, and there are three major parts in the Master Plan : First, the basic natural environment survey, second, sites in special features of ecological characteristics such as uninhabitable islands, wetlands, etc, and third, biological species featuring status of habitat, and population dynamics. However the information in the Master Plan is very fragmented and collected data are not so abundant due to insufficient man-power and unsynchronized survey time/season. In this regard this paper examined the similar National Biological Survey in USA and compared the differences with the Master Plan in Korea. The Master Plan in Korea should separate the management zone based on hydrological characteristics, and in each zone we should set a management goal in the long term basis. Secondly the species list is not so meaningful that we must concentrate more on research activities. In each taxonomical group we set up hypotheses and research goals. Thirdly local residents and communities should be involved in research so that enhanced biological diversity should benefit people in areas. Lastly legislation and laws should be reexamined and rectified to provide information to the managers that deals with natural resources, expecially when conflicting with economic matters.

• 디지털산업정보학회논문지
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• 제9권3호
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• pp.91-98
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• 2013

Node which plays the role of cache server does not exist in the wireless ad-hoc network consisting of only mobile nodes. Even if it exists, it is difficult to provide cache services due to the movement of nodes. Therefore, the cooperative cache technique is necessary in order to improve the efficiency of information access by reducing data access time and use of bandwidth in the wireless ad-hoc network. In this paper, the whole network is divided into zones which don't overlap and master node of each zone is elected. General node of each zone has ZICT and manages cache data to cooperative cache and gateway node use NZCT to manage cache information of neighbor zone. We proposed security structure which can accomplish send and receive in the only node issued id key in the elected master node in order to prepare for cache consistent attack which is vulnerability of distributed caching techniques. The performance of the proposed method in this paper could confirm the excellent performance through comparative experiments of GCC and GC techniques.

• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 2006년도 춘계학술대회 및 제3차 한일 공동 국제 학술대회
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• pp.118-118
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• 2006

• 한국조경학회지
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• 제34권4호
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• pp.48-60
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• 2006

This study was carried out to create a master plan for an urban eco-forest, including concepts of forest restoration, forest management, and nature education. The concept of an urban eco-forest is different from the original eco-forest, which pursues the conservation of native species in their habitats, using the resources of special plants, etc. The study site was a hill (128m) managed as an urban natural park. Citizens have usually used the park for fitness purposes, as a place for outdoor exercise early mornings on weekdays and holidays. The result of a questionnaire survey showed that the users knew about the eco-forest, and they wanted to participate in the nature education programs. The flora and actual vegetation were weak about conservation of native species on the site. The framework of the plan consisted of development of the ecological forest and forest restoration, and allowed for recreation and the experience of nature, according to the concepts of the urban eco-forest. The landscape was divided into the experience zone of biodiversity, the experience zone of a valley ecosystem, the forest restoration zone, and the recreation and experience zone in nature. Based on this framework, detailed programs and theme areas were planned, as were forest restoration models and planting plans.

• 한국정밀공학회지
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• 제17권7호
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• pp.156-161
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• 2000

Least Squares and Minimum Zone method are known for obtaining a datum or a continuous approximate function of measured data. This study is for a Minimum Zone algorithm for a circle, which is useful to obtain the exact roundness from the reference circle of measured data. The proposed method is compared with the Least Squares Limacon method and Chrystal-Peirce algorithm. A computational algorithm for the Minimum Zone circle is suggested and results in less roundness than the other two methods. This Minimum Zone circle method will be used for other geometrical measured data, such as plane or sphere for obtaining the exact flatness or sphericity.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2018년도 춘계학술발표대회
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• pp.57-59
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• 2018

무선 네트워크에서 토폴로지의 빈번한 변화로 노드 간 링크 단절과 경로재설정이 발생하여 네트워크 내에 제어메시지 과부하와 같은 문제점들이 발생한다. 본 연구에서는 링크 단절과 제어 메시지 과부하와 같은 문제점을 해결하기 위하여 무선 네트워크 환경에서 주변 노드 탐색과정, 경로 탐색과정, 경로관리과정의 3단계를 수행할 때 안정적인 전력, 높은 컴퓨팅 능력과 무선 신호 조절 능력이 있는 존 마스터(Zone Master)를 기반으로 하는 링크안정성 기법을 제안하였다. 제안한 기법은 다양한 무선 환경에서 기존의 OLSR라우팅 프로토콜보다 우수한 성능을 보임을 확인하였다.

• 한국정보과학회논문지:정보통신
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• 제34권4호
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• pp.269-275
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• 2007

유비쿼터스 환경의 구현을 위한 핵심 기술 중 고정된 인프라의 지원 없이 무선 단말기들끼리 연결되는 애드 혹 네트워크 기술이 큰 관심을 받고 있다. 이러한 애드 혹 무선 네트워크에서는 무선링크의 높은 비트 오류 확률과 시변 하는 네트워크 토폴로지로 인하여 수신자와 송신자간의 원활한 정보 교환을 위해 데이타 전송 경로를 효과적으로 제어할 수 있는 라우팅 프로토콜이 매우 중요한 역할을 수행한다. 하지만 기존의 애드 혹 네트워크를 위한 라우팅 프로토콜은 높은 오버헤드와 네트워크의 안정성 및 확장성 측면에서 많은 문제점을 안고 있다. 따라서 보다 효과적으로 전송 경로를 제어하고, 애드 혹 무선 네트워크 환경의 안정성을 향상시키기 위한 해결 방법으로 본 논문에서는 하이브리드 무선 네트워크를 위한 존 마스터 기반의 라우팅 프로토콜을 제안하였다. 본 논문에서 제안하는 라우팅 프로토콜의 성능 분석을 위해 모의실험을 수행하였으며, 그 결과 제안 라우팅 프로토콜이 다양한 무선 환경에서 기존의 라우팅 프로토콜보다 우수한 성능을 보임을 확인하였다.