聲門下腔에 發生한 Fibroxanthoma의 一例

姜周元 대한이비인후과학회 1963 대한이비인후과학회지 두경부외과학 Vol.6 No.1

융합인재교육(STEAM)을 위한 창의적 공학문제해결 성향 검사 도구 개발

강주원,남윤경 대한지구과학교육학회 2016 대한지구과학교육학회지 Vol.9 No.3

This study is to develop a valid and reliable instrument for measuring students’ creative engineering problem solving propensity. The creative engineering problem solving is operationally defined in this study as a creative problem solving skill in an engineering context. To develop the instrument, first we define seven common constructs between engineering problem solving skill and creative problem solving skill through an intensive literature review; motivation, context, personal character, engineering design, engienering habits of mind, understandings of engineering and engineers, communication skill, and collaboration skill. Based on the seven constructs and the face validity test conducted by two in-service science teachers and 4 experts in science education research, 40 preliminary items were developed. Then the preliminary instrument was implemented in a science gifted highschool to measure the reliability of the instrument. From the 40 items, 34 items were selected through the initial reliability test by Cronbach’s α (>.75). Finally through the three times of factor analysis process, 28 items in five construct categories were selected; motivation (3 items), engineering design (6 items), engineering habits of mind (9 items), understandings of engineering and engineers (4 items), communication and collaboration skill (6 items). The factor analysis result showed that the reliability of each construct category was between .733 to .892., meaning that the instrument is reliable in terms of the higher structural validity (each item is categorized in an appropriate construct category). We expect that the creative engineering problem solving propensity instrument developed in this study can be used in various contexts for STEAM education research as a reliable and valid instrument

개폐식 대공간 건축물의 통합설계 엔지니어링 기술개발 연구단

강주원,김기철,이동우,박금성,Kang, Joo-Won,Kim, Gee-Cheol,Lee, Dong-Woo,Park, Keum-Sung 한국공간구조학회 2015 한국공간구조학회지 Vol.15 No.4

폭발 하중을 받는 프리캐스트 프리스트레스트 콘크리트 패널의 거동 평가

강주원,조은선,김민숙,이영학,Kang, Joo-Won,Jo, Eunsun,Kim, Min Sook,Lee, Young Hak 한국공간구조학회 2015 한국공간구조학회지 Vol.15 No.1

The purpose of this study is to establish and examine the analytical methods based on FEA to predict the behavior of the precast prestressed concrete panels under blast loading. The precast prestressed concrete structures are on the rise, but there is little research in this regard explosion. In this paper, we set the variable to the three models. TNT 500 kg was an explosion in the standoff-distance 3m. In conclusion, the precast models damage was concentrated in the bonded portion. The concrete panels after an explosion occurred continuously deformed. But the including prestressed panels deformation occurs only at the beginning of the explosion were able to see the results.

막구조 건축물의 유지관리를 위한 표면 및 코팅층의 열화 진단

강주원,이승재 한국공간구조학회 2011 한국공간구조학회지 Vol.11 No.1

This paper contains of descriptions of deterioration diagnosis of the surface and a coating layer for maintenance managements of large spatial structures with membrane structure. Membrane is a roofing material of the structures that its performance of durability including its performance of chemical resistance and corrosive resistance is considered to be highly important. In general, the items of diagnosis for maintenance managements such as membrane extensively include the diagnosis of deterioration of the membrane surface, of a coating layer of membrane, the diagnosis of deterioration between a coating layer and fiber, of overall surface of membrane, of the class of ropes, of reinforced belts, and of the cover of rubber. The object of this study that needs maintenance managements of the membrane with PVC and PTFE which are commonly used and shows the diagnosis results of deterioration of the surface and a coating layer.

2024년 파리 올림픽 세계 우수선수와 국가대표선수의 안마 종목 난도 분석

강주원,김동화,박인혜,이수근 한국체육교육학회 2024 한국체육교육학회지 Vol.29 No.4

목적: 본 연구는 2024 파리올림픽 체조 종목의 안마 결승선수와 국내우수선수 안마 연기내용을 분석하여 국제대회에 입상하기 위한 기초자료로서 현장에 있는 선수 및 지도자들에게 정보를 제공하는데 목적이 있다. 방법: 2024파리올림픽 체조의 안마 종목 상위 8명, 국가대표 선발전 안마종목 상위 8명, 총 16명의 선수를대상으로 편의표본추출방법을 사용하였다. 두 집단의 영상분석을 위해서 대한체조협회 및 FIG 공식 영상을비교, 대조를 위한 채점표를 사용하였다. 자료처리는 SPSS 26.0(Ver) 통계프로그램을 사용하여 빈도분석, 독립 t-test를 실시하였고 유의수준은 α=.05로 설정하였다. 결과: 첫째, 올림픽 그룹은 C난도 이상의 고난도 기술을 주로 사용하였으며, E난도와 D난도의 기술 사용 빈도가 높았다. 반면, 국내 선발전 그룹은 A난도와 B난도 기술을 주로 사용하여 상대적으로 낮은 난이도에 의존하는 경향을 보였다. 둘째, 시작점수 비교에서 올림픽 그룹이 국내 선발전 그룹보다 유의미하게 높은 점수를 기록하였으며, 이는 고난도 기술 구사 능력에 따른 결과로 분석되었다. 셋째, 연기 내용 비교에서는 올림픽 그룹이 D, E, F난도와 같은 고난도 기술을 다수 수행한 반면, 국내 선발전 그룹은 B, C난도의 기술에 집중하였다. 결론: 국내 선수들이 국제 대회에서 경쟁력을 강화하기 위해서는 고난도 기술 수행 능력을 향상시키는 훈련이 필요하며, 특히 C난도 이상의 기술을 안정적으로 구사할 수 있는 전략적 접근이 요구된다. 또한, 시작점수 향상을 위해 고난도 기술 구성에 대한 체계적인 훈련 프로그램이 도입되어야 할 것이다. Purpose: This study aims to provide information to athletes and coaches in the field by analyzing the performance of finalists in the men’s artistic gymnastics event at the 2024 Paris Olympics and domestic top athletes specifically in pommel horse, serving as basic data for succeeding in international competitions. Methods: The study used a convenience sampling method targeting a total of 16 athletes: the top 8 from the 2024 Paris Olympics and the top 8 from the national selection trials in the pommel horse gymnastics event. For video analysis of the two groups, scoring sheets for comparison and contrast were used, based on official videos from the Korean Gymnastics Association and FIG. Data processing was carried out using SPSS 26.0, performing frequency analysis and independent t-tests, with a significance level set at α = .05. Results:First, the Olympic group predominantly used high-difficulty skills of level C and above, with a high frequency of techniques at levels E and D. In contrast, the domestic selection group mainly relied on skills at levels A and B, showing a tendency to depend on relatively lower difficulty. Second, in terms of starting scores, the Olympic group recorded significantly higher scores than the domestic selection group, which was analyzed as a result of their ability to perform high-difficulty skills. Third, in terms of performance content, the Olympic group performed numerous high-difficulty skills such as those at levels D, E, and F, while the domestic selection group focused on techniques at levels B and C. Conclusion: To enhance the competitiveness of domestic athletes in international competitions, training to improve the ability to perform high-difficulty skills is necessary. Specifically, a strategic approach that allows for the stable execution of skills at level C and above is required. Additionally, a systematic training program for incorporating high-difficulty skills should be introduced to improve starting scores.

개폐식 대공간 구조물의 현황과 전망

강주원,김기철,김현수,석근영,Kang, Joo-Won,Kim, Gee-Cheol,Kim, Hyun-Su,Seok, Keun-Young 한국공간구조학회 2014 한국공간구조학회지 Vol.14 No.3

포스트 코로나 시대 항공서비스 전공 대학생의 그릿과 진로결정 자기효능감이 진로준비행동에 미치는 영향

강주원,이민정 한국관광연구학회 2024 관광연구저널 Vol.38 No.1

본 연구에서는 항공서비스 전공 대학생의 그릿과 진로결정 자기효능감이 진로준비행동에 미치는 영향에 관해 파악하고자 하였다. 설문조사는2023년 9월 4일부터 9월 18일까지 200명을 대상으로 수행되었다. 유효표본 188개의 데이터는 SPSS 18 프로그램으로 입력하였고, AMOS 18.0 프로그램으로 본 조사 연구모형의 타당성 및 신뢰성을 확인하였다. 연구의 결과는 다음과 같다. 첫째, 그릿에 있어 관심의 일관성은 진로결정 자기효능감에 긍정적인 영향을 미치지 않는 것으로 나타났다. 반면에 노력의 지속성은 진로결정 자기효능감에 긍정적인 영향을 미치는 것으로 나타났다. 둘째, 진로결정 자기효능감은 정보수집활동, 도구준비활동, 실천적 노력활동 등 진로준비행동에 긍정적인 영향을 미치는 것으로 나타났다. 셋째, 그릿과 진로준비행동 간의 관계에서 노력의 지속성과 정보수집활동, 노력의 지속성과 도구준비활동 사이에서 진로결정 자기효능감의 매개효과를 확인하였다. 상기 연구 결과는 코로나 19 이후 항공 수요가 다시 제자리를 되찾고 항공 산업에 있어 전문 인력 채용이 활발해 지기 시작한 현 시점에서 항공서비스 전공 대학생의 그릿과 진로결정 자기효능감, 진로준비행동을 고찰해 보았다는데 의의가 있다. 포스트 코로나 시대에 진로 및 취업문제로 고민하는 학생들에게 실질적인 방향성을 제시했다는 점에서 의미 있는 연구의 시사점이 도출되었다.

아치구조물의 지진응답제어를 위한 스마트 면진시스템의 적용

강주원,김현수,Kang, Joo-Won,Kim, Hyun-Su 한국전산구조공학회 2011 한국전산구조공학회논문집 Vol.24 No.2

Base isolation system is widely used for reduction of dynamic responses of structures subjected to seismic load. Recently, research on a smart base isolation system that can effectively reduce dynamic responses of the isolated structure without accompanying increases in base drifts has been actively conducted. In this study, a smart base isolation system was applied to an arch structure subjected to seismic excitation and its control performance for reduction of seismic responses was evaluated. In order to make a smart base isolation system, 4kN MR dampers and low damping elastomeric bearings were used. Seismic response control performance of the proposed smart base isolation system was compared to that of the optimally designed lead-rubber bearing(LRB) isolation system. To this end, an artificial ground motion developed based on KBC2009 design response spectrum was used as a seismic excitation. Fuzzy control algorithm was used to control MR damper in the smart base isolation system and multi-objective genetic algorithm was employed to optimize the fuzzy controller. Based on numerical simulation results, it has been shown that the smart base isolation system can drastically reduce base drifts and seismic responses of the example arch structure in comparison with LRB isolation system.

등가플레이트 요소를 이용한 일방향 중공슬래브의 동적해석에 관한 연구

강주원,임준호,채승훈,김기철,석근영,Kang, Joo-Won,Lim, Jun-Ho,Chae, Seoung-Hun,Kim, Gee-Cheol,Seok, Keun-Young 한국전산구조공학회 2012 한국전산구조공학회논문집 Vol.25 No.5

Considering that the weight of a hollow slab system is not increased with an incremental increase in its thickness, and that the flexural stiffness of a hollow slab is not significantly lower than that of a general slab, there has been a growing need for hollow slab system, because long span structures are in great demand. In a long span structure, the problem of vibration of floor slabs frequently occurs, and the dynamic characteristics of a hollow slab system are quite different from the conventional floor system. It is required to investigate the safety and the serviceability of hollow slab. Therefore, there exists a necessity for accurate vibration analysis. Hollow slab should be modeled by refined mesh for accurate vibration analysis. For the efficiency of the Eigenvalue Analysis, an equivalent plate slab model when can relatively precisely represent the dynamic behavior of a one-way hollow slab system is used. In conclusion, equivalent plate models relatively precisely presented the dynamic characteristics of one-way hollows.