• Journal of Advanced Marine Engineering and Technology
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• 제38권4호
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• pp.463-469
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• 2014

본 연구에서는 최근 많이 사용하고 있는 스마트TV와 스마트폰의 연동구조를 제시하고 있다. 스마트 TV에 새롭게 설치되는 앱을 스마트폰으로 제어하는 기술로써 스마트폰을 무선 AP에 연결하는 절차를 생략하기 위하여 무선AP 접속 정보를 담은 QR 코드를 생성하고 스마트폰에서 이를 인식하여 편리하게 무선AP에 연결하는 방법을 제시하였다. 이를 실현하기 위해 연동의 초기 단계 시 NFC와 QR로부터 정보를 획득하여 연동하기까지의 과정과 동작방식을 설계하고 구현하였으며, 사용자를 고려한 자동연결 방식과 간단한 조작 방식을 보임으로써 키오스크나 다양한 디스플레이장치를 제어하기 위한 활용가능성을 확인하였다.

• 정보처리학회논문지B
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• 제12B권4호
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• pp.459-464
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• 2005

온라인 게임 시스템은 크게 서버와 클라이언트 두 부분으로 나누어 볼 수 있다. 클라이언트는 게임 서버와의 접속 그리고 서버로부터 전송되는 패킷 분석 등의 역할을 하며, 게임 서버는 사용자 정보와 데이터베이스 둥의 관리를 수행한다. 특히 게임 서버는 새로운 클라이언트가 게임을 수행하기 위해 서버로의 접속을 허용할 경우 기존에 연결된 사용자와의 온라인 연결을 유지하면서 새로운 클라이언트의 접속 요청을 받아들여 야 한다. 본 논문에서는 서버의 다중 작업 처리를 위한 방법 중 프로세스(Process) 방법과 쓰레드(Thread) 방법의 처리 형태를 비교한 후, 현재 대부분의 게임 서버에 적용되어 있는 비대칭 분산형 구조에 적합한 비대칭 분산형 다중 서버 구조를 제안하였다. 제안한 비대칭 분산형 다중 서버 구조는 서버의 기능을 로그인 서버, 게임 서버, 통신 서버, 데이터베이스 서버 형태로 세부적으로 분리하여 각각의 기능을 독립적으로 수행한다. 따라서 다른 구조들과 비교하였을 경우 경제적, 기능적으로 더 나은 성능을 보이며 특히 서버의 안정성과 확장성이 향상되었다.

• 한국정보통신학회논문지
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• 제12권10호
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• pp.1866-1874
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• 2008

기존의 웹 서버는 과부하 상태인 경우 폐쇄 연결, 암호 핸드쉐이크 실행 증가와 서버 용량의 현저한 감소로 서버의 처리량에 문제가 발생하여 시스템의 전체적인 성능을 저하시킨다. 또한 쓰레드 블록으로 인하여 다수의 클라이언트 요청 처리가 원활하지 못하고, 쓰레드 활성화를 위하여 많은 시간과 자원을 요구하여, 클라이언트의 요청에 대해 접속시간과 응답 시간이 증가하는 단점이 발생한다. 그러므로 본 논문에서는 웹서버스의 장점인 통합과 커뮤니케이션 지원과 시스템 성능 향상을 위해 서버 과부하를 개선하고, 지연처리를 위해 필요한 기술을 제공하는 확장된 웹서버를 제안한다. 그리고 기존 시스템(Tomcat 5.5에서 구현)과 제안한 모바일 웹 서버 아키텍처를 평가한다. 확장된 서버 아키텍처는 시스템 성능을 위해 우수한 교환 조건을 제공하고, 다중쓰레드와 쓰레드풀을 결합한 개선된 웹 서버 아키텍처를 평가한다. 본 논문에서 제안된 웹서비스 아키텍처는 오리지널 Tomcat 5.5의 평가 결과보다 개선된 성능 이익의 결과를 얻었다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제28권1호
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• pp.7-21
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• 2022

Purpose: As the pandemic period continues, various attempts are being made to new medical spaces in the medical society. Many hospitals, including existing general hospitals, have been effected by infected patients and are showing limitations in patient care capacity. Mobile-hospitals may be the starting point for the development of new environment in the medical society and healthcare facilities which are not replacing the role of existing hospitals. Mobile-hospitals can possibly respond to situations that require medical services and provide emergency care for various demands in connection with existing healthcare facilities. Methods: Through a total of five investigations/analysis, medical functions that can be inserted into mobile-hospitals based on modular architecture are set. The first is the analysis of domestic legal guidelines, the second is the analysis of previous studies, the analysis of emergency medical facilities and other medical spaces of hospitals to be compared, the fourth is the analysis of medical spaces of actual mobile hospital projects. Results: Through five analyses, medical functions applicable to the modular building platform were finally established. Mobile hospitals can be used not only in disaster sites such as infectious diseases, but also in medical underprivileged areas or general hospitals. Therefore, it is necessary to establish medical functions that meet the specificity of mobile hospitals along with the functions of existing fixed medical facilities. Furthermore, various studies such as use in international aid, use in normal times, and connection with other platform-based medical facilities are considered necessary. Implications: Through 5 strategies of analysis, 41 medical functions which can be applied to UNIT are decided and these functions will be placed where medical services will be required.

• Current Research on Agriculture and Life Sciences
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• 제7권
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• pp.185-199
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• 1989

The main goal of this research was to develop a Golf course planning Methodology in terms of use and preservation of natural resources which consider balance of Ecosystem. This study suggested the necessity of analysis of natural resources in the development site prior to its planning. The analysis will give a benefits both the profits of private enterprise and national interests for reuse of natural resources. Study site was planned region of Kyungpook Country Club, which located near Weagwan. In connection with this study, natural resources which will reuse in the planning stage and soil status in the development site were analyzed.

• 한국실내디자인학회논문집
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• 제19호
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• pp.45-52
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• 1999

This study is on Buckminster Fuller, who is generally known as a structure engineering architect, and his influences. Fuller's radical and utopian ideas and designs were regarded as 'paper architecture'. But considering today's high cost of energy and the limited natural resources, Fuller's Dymaxion theory must be re-evaluated. Fuller's influences on the contemporary architecture are summarized as follows. 1) His idea of controlling the environment through the use of technology influenced today's 'High-Tech' architects. Architecture is no-longer designed purely by its formal character, but becomes a tool of investigating environmental significance of modern technology. 2) Through systemizing mechanical equipment, Dymaxion House prototype, and aggregation of high-tech mechanical equipments, influenced Archigram & Metabolist's capsule idea. It is expressed as a plug-in module equipment of 'High-Tech' architecture which has flexible interior with mechanical exterior image. 3) Megastructure. The Manhattan dome project gave an influence to many engineer/architects who tried to achieve an ideal artificial environment. This is in connection to 1960's utopian projects. Today's megastructures show new possibilities in urbanism and architecture. Fuller's comprehensive idea of humans living in harmony in the universe shows possibilities not only in structural engineering, but in solving various problems that confront today's architecture.

• 한국건축시공학회지
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• 제4권2호
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• pp.105-112
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• 2004

The objective of this study is to observe today's situation and direction in relation with the natural air-conditioning and heating system to expand the architectural utilization of natural management for human comfort and energy conservation in architectural design. Also this study to provide the fundamental knowledge and. design-techniques on environment-friendly architecture in connection with 'natural idea in architecture'. In accordance with this intention, this thesis is composed of the following contents : 1) to understand the fundermental concepts about natural air-conditioning and heating system, 2) to review the traditional characteristics in Korean and Southeast Asian architecture related to natural air-conditioning and heating system, 3) to examine modern design-techniques in relation with natural air-conditioning and heating system in the selected area, 4) to attempt to synthesize the whole situation. Environment-friendly architecture using natural ideas and design-techniques in architecture is very important architectural aspect in a current architecture, also for the future. In spite of general considerations, it is expected that this study is use to understand the principle and practical application of natural air-conditioning and heating system in architectural design.

• Architectural research
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• 제22권4호
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• pp.113-122
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• 2020

Hospital architecture must be planned as a therapeutic space. Numerous studies have proven that exposure to nature has a healing effect. However, research on the architecture itself about this issue is still insufficient. This study analyzed Le Corbusier's Venice hospital project and its architectural configurations with nature. Le Corbusier had been interested in blurring the interior/exterior line to draw nature inside. In his projects, nature was conceived in an abstract sense as "something green." However, in the hospital project, natural elements including vegetation, the lagoon, and light, and the landscape scenery they created, were considered in the harmony of the architectural space. The architectural spaces with courtyards, pilotis, and roof gardens provided views and direct access to nature, and in the interior spaces, the connections to these external spaces and the permeation of views of nature and sunlight were incorporated. Many spaces provided the possibility to actually encounter nature, with a variety of indoor/outdoor space configurations rather than a merely passive placing of some natural elements. This project is considered to be an important reference for contemporary hospital architecture, since the architectural space and nature connected through various spatial configurations also in healthcare programs. As Le Corbusier emphasized, sunlight, vegetation, and also architectural space should be an essential factor in therapeutic hospital architecture planning.

• 한국환경복원기술학회지
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• 제17권2호
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• pp.125-136
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• 2014

Urban Green Area has ecologically deteriorated along with quantitative loss, being developed as a dot itself rather than connected to forests and green networks around the park. The present study aims to propose a connected plan on Urban Ecological Network establishment through 'assessment of the connectivity of the entire urban parks' in accordance with distance of forest and river and 'assessment of trends in connection fragmentation of urban parks' in accordance with the past change of forest and river. According to the result of this study, criteria based on previous research was "directly linked type is less than 300m, conceptually linked type is between 300m to 1km, the isolated type is greater than 1km". And the result of 'assessment of the connectivity of the entire urban parks' is analyzed as the rate of park and green network, 41.7% in Suwon, 80.0% in Seongnam, 88.9% in Namyangju on the basis of office and field investigation. Also, according to the result of 'assessment of trends in connection fragmentation of urban parks', consideration for connection to the original forest is insufficient.

• International Journal of Concrete Structures and Materials
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• 제18권3E호
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• pp.199-205
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• 2006

The composite frame system with reinforced concrete column and steel beam can be improved in its structural efficiency by complementing the shortcomings of the two systems. The system, however, has many inherent problems in practical design and construction process due to the dissimilarities of the materials. Considering these circumstance, this research aims for the development of a composite structural system which connects the steel beams to the R/C columns with higher structural safety and economy. Basically, the proposed connection system is composed of four split tees, structural angles reinforced by a stiffener, high strength steel rods, connecting plates and shear plates. Structural tests have been carried out to investigate the moment transfer mechanism 1Tom the beam flange to steel rods or connecting plates through the structural angle reinforced by a stiffener. The four prototype specimens have been tested until the flange of the beam reached a plastic state. The test results indicated that no distinct material dissimilarities between concrete and steel have been detected for the proposed hybrid beam-column connection system and that the stress transfer through the structural angle between the beam flange and steel rods or connecting plates was very encouraging.