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      • KCI등재

        UHF대역 RFID 리더 간섭방지용 전파흡수체 개발

        박수훈,최창묵,송영만,김동일,정지원,김기만 한국항해항만학회 2008 한국항해항만학회지 Vol.32 No.5

        In this paper, the EM wave absorber was designed and fabricated for preventing Reader Interference of RFID communication system in UHF band. We fabricated several samples in different composition ratios of Amorphous and CPE(Chlorinated Polyethylene). Absorption abilities were simulated in accordance with different thicknesses of the prepared absorbers and changed complex relative permittivity and permeability due to composition ratio. The mixing ratio of Amorphous and CPE was searched as 80 : 20 wt.% by experiments and simulation. Then the EM wave absorber was fabricated and tested using the simulated data. As a result, the developed EM wave absorber has a thickness of 4 mm and absorption ability was over 20 dB in frequency range of 860 MHz~960 MHz. Therefore, it was confirmed that the developed absorber can be used for suppressing RFID reader interference in UHF band. 본 논문에서는 UHF대역 RFID 통신 시스템 간에 발생하는 리더 간섭을 방지하기 위한 전파흡수체를 설계 및 제작하였다. 먼저 자 성손실 재료인 Amorphous와 지지재인 CPE(Chlorinated Polyethylene)를 이용하여 조성비별 전파흡수체 샘플을 제작하였고, 이 전파흡수체 샘 플로부터 구한 재료정수를 이용하여 시뮬레이션을 한 결과, 최적의 조성비가 Amorphous : CPE = 80 : 20 wt.% 임을 확인하였다. 그리고 시뮬 레이션 결과를 토대로 전파흡수체를 실제작하여 전파흡수능을 비교․분석하였다. 그 결과 Amorphous : CPE = 80 : 20 wt.%의 조성비 일 때, 두께 4 mm의 전파흡수체가 860 MHz~960 MHz의 주파수 범위에서 전파흡수능 20 dB 이상의 특성을 얻음으로써 UHF대역의 RFID 리더 간 섭을 억제할 수 있음을 확인하였다.

      • KCI등재

        精神障碍者의 入院前 治療에 對한 硏究

        박수훈 大韓神經精神醫學會 1976 신경정신의학 Vol.15 No.4

        The authors studied the treatment experiences prior to psychiatric hospitalization of mental disorders of 1.844 admitting patients and 706 discharged patients, 2,550 patients in total, from 89 psychiatric hospital in Korea. The admission subjects were surveyed by questionnaire method on 4th, July, 1974. The discharged subjects had been taken during one month, April, 1974. Twenty five hundreds and fifty total subjects were classified into two groups; the one has the experience of treatment before psychiatric admission, the other group has no psychiatric treatment. The data of treatment experience was related to three factors, the general backgrounds, the family backgrounds and the situation of admission of the mental disorders. Statistically, These datas were analyzed by frequency and significant differences. The summary of the findings are follows. 1. Sex and age distributions of the general background were seem to be not significant meaning, but mother's educational status has a significant meaning. 2. Family structure is not found any significant differences by the treatment experiences. 3. The economic status seems to be not significant differences, but the times of hospitalization and the period from onset to admission are found significant differences by the treatment experiences.

      • 단지설계시 일조 및 조망분석에 대한 주거환경분석시스템의 구현

        박수훈 한밭대학교 2006 한밭대학교 논문집 Vol.23 No.-

        This paper concerns about residential environment analysis program development for design and analysis on public housing sites such that view and daylight analysis processes are automated and integrated into existing conventional design routine so as to achieve better design efficiency. Considering the architectural design trends this paper chooses ArchiCAD as a platform for general CAD system, which contains those concepts such as integrated object-oriented CAD and virtual building. Residential environment analysis system consists of three components. The first component is the 3D modeling part defining 3D form information for extemal geographic contour models, site models and interior/exterior of apartment buildings. The second is the parametric library part handing the design parameters for view and daylight analysis. The last is the user interface for the input/output and integration of data for the environment analysis. We could expect better performance and precision from this residential environment analysis system than the existing 2D drawing based view and daylight analysis methods and overcome the existing one-way flow of design information from 3D form to analysis reports so that site design modifications are automatically reflected on analysis results.

      • 知識基盤設計모델에서 窓 設計知識의 再現과 推論

        박수훈 한밭대학교 2003 한밭대학교 논문집 Vol.20 No.-

        This paper explains a knowledge-based design model adopting FBS design model and design prototype theory, and examines its capability in representing and reasoning of design knowledge regarding window designing. Firstly, we describe how design processes and design artifacts are conceptually schematized. Secondly, we formulate a window design model and thirdly, we perform experiments on design knowledge using an expert system shell called CLIPS. Finally we explain the use of critical design knowledge in handling windows. The modeling and experiments on knowledge about window designing proves the validity of the knowledge-based design model based on design prototype theory.

      • BIM 설계툴의 초기도입현황과 건물성능분석으로의 방향

        박수훈 한밭대학교 2007 한밭대학교 논문집 Vol.24 No.-

        This paper concerns about the concurrent situations of initial adoptions of BIM design tools in national and international architectural finns and those features that grap the attentions of convemtional designers and firms who found BIM tools attractive in solving their usual and difficult architectural design problems. This paper introduces some of the definitions of BIM and basic categorization of BIM tools and BIM tool characteristics. BIM tools separate themselves from other architectural CAD tools such that they are based on an integrated and interactive 3D model which contain parametrically-defined interacting building objects, capabilities of simultaneous 2D, 3D and parametric viewing and editing as well as integrated reporting of non-gaphical data. Successful adoptions of BIM tool in national architectural firms and their cases are introduced and some of the successful international building performance analysis cases are also introduced. There are still cautionary issues in terms of the cost of translation between BIM modeling data and conventional CAD data. The role of architects in society is not changed but inevitably architects began to realize that role will be affected by available technology such as BIM Now the BIM tool provide us better way to enhance building performance that leads to better, more effective, more optimized and coot sensitive design solutions meaning sustainable green design.

      • KCI등재

        Understanding of the Sung-Rye-Moon Roof Structure and implementation of the traditional Bracket-set Design Modules for BIM tools

        박수훈,안은영 한국멀티미디어학회 2011 멀티미디어학회논문지 Vol.14 No.12

        Roof structure of the traditional buildings in the Northeast Asia region including Korea contains the most complicated and crucial components of the building and therefore the issues such as cost down, productivity and the attempt to combine the traditional building methodology with contemporary building technology turn out to be vital to the survival of the old yet disconnected traditional building industry. One of the distinctive modern building technologies is handling life-cycle building information by constructing virtual buildings using BIM, building information modeling tools. In this paper we follow a procedure to implement some of the design modules to be applied in BIM tools which are platforms for constructing virtual building models. We focus on Gong-po components namely the bracket-sets which are the essential part that connects the middle parts to the top parts (the roof structure) which are considered to be the most elaborate parts of the traditional buildings. The target building to work with in this paper is the Sung-Rye-Moon which has special cultural and social meanings nowadays and we tested our understanding and the design modules such as the bracket-sets by constructing a virtual building model of Sung-Rye-Moon.

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