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CPTED 설계요소에 대한 공동주택 주민인식에 관한 연구
최현식(Choi Hyun Sick),박준석(Park Jun Seok) 한국공안행정학회 2009 한국공안행정학회보 Vol.18 No.4
이 연구는 공동주택에 설계된 CPTED 요소에 대한 중요도-만족도 분석을 통해 주민인식의 관점에서 범죄예방에 필요한 CPTED요소의 효율성을 파악할 목적을 갖고 진행된 연구이다. 경찰청 CPTED 설계지침에 따라 2차 설계집단과 1·2차 설계집단을 세분화하여 CPTED의 구성요소에 대한 중요도-실행도 분석(Importance-Performance Analysis : IPA)을 통해 세분집단별로 중요하게 인식하는 CPTED의 설계요소를 규명하여 실무적인 측면의 유용한 정보를 제공하고자 하였다. 이상의 연구목적에 따른 실증분석 결과는 다음과 같다. 1·2차 설계집단에서 중요도와 만족도가 높은 CPTED 설계요소는 기계적 접근통제, 기계적 감시, 조직적 감시, 근린강화로 나타났다. 2차 집단의 주민들이 중요하게 인식하고 만족하는 요소는 기계적 접근통제, 기계적 감시로 나타났다. 이외의 요소들은 높은 중요도에 비해 만족도가 낮아 개선이 필요하거나, 낮은 중요도에 비해 만족도가 높아 주민들의 홍보를 통해 중요도 인식을 높일 필요가 있는 것으로 나타났다. 특히 CPTED의 1차 설계요소인 자연적 접근통제와 자연적 감시는 1·2차 설계집단과 2차 설계집단 모두 중요도가 낮아 주민의 인식수준은 높지 않은 것으로 나타났는데 이는 공동주택에 있어 주요한 CPTED의 설계요소가 전통적인 2차 설계요소라는 사실을 의미하는 것으로 주민들의 범죄예방을 위한 주요한 활동이 주로 인적요소와 기계적 요소와 관련되어 있음을 보여준다. This study is proceeded with a purpose to explore the efficiency of CPTED element in crime prevention from apartment residents perception through an importance-satisfaction analysis of CPTED elements which is designed in the apartment house complexes. It also aimed to provide working-level side useful information examining closely design element of CPTED recognizing heftily by fractionation group through importance - run chart analysis (Importance-Performance Analysis : IPA) for CPTED s component atomizing the secondary design group, the primary and the secondary design group according to National Police Agency CPTED design guide. The actual analysis results by research purposes of the above were as following. The CPTED design elements where importance and satisfaction were high in the first and second design group were found to be mechanical access control, mechanical surveillance, systematic surveillance and bonding. The factors that the second group s residents recognize high and are satisfied appeared to be mechanical access control, mechanical surveillance. Some other elements showed low satisfaction despite high importance and so required improvement of design. Some showed high satisfaction despite low importance and it was needed to raise residents awareness of importance. Especially, natural access control and natural surveillance, the primary design element of CPTED, showed demonstrated low importance from the first and second groups perception. This means that the resident s awareness level of importance of the primary design approach. This signifies that the secondary and tertiary CPTED approach, such as human element and mechanical element is traditionally more popular in Korea than the primary approach, the natural one.
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안정수렴법을 이용한 불규칙 형상 하이브리드 구조시스템의 기하학적 비선형 동적해석
한상을(Han Sang-Eul),고현석(Koh Hyun-Seok),최현식(Choi Hyun-Sik) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
Cable-domes are representative of Hybrid structures. For their material properties and pretensions, they can generate large deformation which shows geometrical non-linearity. Because cable domes are flexible structures whose stiffness and self-weight are very small, when carry out dynamic analysis, wind loads is more dominant than seismic loads. Cable-domes are composed of Closed shape like Seoul Olympic Gymnasium and open(irregular) shape like Busan Asiad Main Stadium as cable-dome's shape. So, we analyzed these behavior character of two shapes at this study. And the analysis method for solving nonlinear finite element equations is modified Newton-Raphson method. And for dynamic analysis method is Stiffly Stable Method which is based on backward-difference. Then compare its convergence criteria with Newmark-beta method.
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[디젤엔진부문] 예혼합 압축 착화 디젤 엔진의 연소 특성
이창식(Chang-sik Lee),이기형(Ki-hyung Lee),전학식(Hak-sik Jeon),김대식(Dae-sik Kim),최현식(Hyun-seok Choi) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
A homogeneous premixed charge compression ignition engine has been experimentally studied for the reduction exhaust emissions of diesel engines. In this study, the gasoline fuel is injected into the intake manifold to form homogeneous pre-mixture in the combustion chamber and then this pre-mixture is ignited by small amount of diesel fuel directly injected into the cylinder. In the premixed charge compression ignition engine, NOx and smoke concentration of the exhaust emissions were reduced simultaneously as compared with the conventional diesel engine. The combustion characteristics of premixed charged diesel engine such as the power output, the rate of heat release, and the other characteristics are discussed.
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박준석,최현식,정성숙,김진환,정석현 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4
The aim of this study was to investigate Consciousness and Value on Private Bodyguard and Security. I started to search from 7. January. 2004 to 20. May. 2004. so totally I searched for 5month, As a result, I got 526 papers of questionnaire and dropped 26 papers of them because of insincere answers from responders, So I used 500 papers for the research that I am doing. The method of One-Way ANOVA was used to verify the mean ratio and LSD multiple range test was also used for the verification when there was a slight difference among the objected group, All data were analyzed by SPSS 11.0 producer. The results of this study are like the below: 1) The result In the case of ages showed that significant difference(p<.05) companies consciousness were Private Bodyguard and Security for structure of consciousness. 2) The result In the case of Educational Credentials showed that no significant difference self consciousness, welfare conscious ness, social consciousness, companies consciousness were Private Bodyguard and Security for structure of consciousness. 3) The result In the case of work duration showed that significant difference(p<.05) self consciousness were Private Bodyguard and Security for structure of consciousness. 4) The result in the case of monthly income showed that no significant difference self consciousness, welfare conscious ness, social consciousness, companies consciousness were Private Bodyguard and Security for structure of consciousness. 5) The result in the case of working time showed that significant difference(p<.05) self consciousness, social consciousness, companies consciousness were Private Bodyguard and Security for structure of consciousness.
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