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끝단질량을 가진 유체유동 회전외팔 파이프의 안정성 해석
윤한인(Han-Ik Yoon),손인수(In-Soo Son),김동진(Dong-Jin Kim) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.6
In this paper the vibration system is consisted of a rotating cantilever pipe conveying fluid and tip mass. The equation of motion is derived by using the Lagrange's equation. Also, the equation of motion is derived applying a modeling method that employs hybrid deformation variables. The influences of a rotating angular velocity, mass ratio and the velocity of fluid flow on the stability of a cantilever pipe by the numerical method. The effect of tip mass on the stability of a rotating cantilever pipe is also studied. The influences of a tip mass, the mass ratio, the velocity of fluid, the angular velocity of a cantilever pipe and the coupling of these factors on the stability of a cantilever pipe are analytically clarified.
유휴산업시설 재생공간의 장소성이 방문만족도와 체류시간에 미치는 영향 - 문래예술창작촌의 방문자들을 대상으로 -
윤한,윤희정,Yoon, Han,Yun, Hee Jeong 한국조경학회 2018 韓國造景學會誌 Vol.46 No.4
본 연구는 유휴산업시설 재생공간 방문자들의 장소성이 방문만족도와 체류시간에 미치는 영향을 밝히는 것을 연구목적으로 한다. 이를 위하여 본 연구는 서울시 영등포구에 위치한 문래예술창작촌을 연구대상지로 선정하였으며, 방문자를 대상으로 설문조사를 진행하였다. 탐색적 요인분석 및 신뢰도분석, 다중회귀분석결과, 문래예술창작촌의 장소성 요인인 매력성, 의미성은 방문만족도와 체류시간에 정(+)의 영향을 미치는 것으로 나타났으며, 매력성이 가장 큰 영향을 미치는 것으로 나타났다. 그러나 역사성은 방문만족도와 체류시간에 유의미한 영향을 미치지 못 하는 것으로 나타났다. 또한, 방문만족도는 체류시간에 정(+)의 영향을 미치는 것으로 분석되었다. 이상의 연구결과는 유휴산업시설 재생공간의 장소성을 진단하고, 추후 도시공간 계획가 및 관리자가 유휴산업시설 재생공간을 활성화시킬 수 있는 장소마케팅 전략을 수립하는 데에 유용한 지침이 될 수 있을 것이다. The purpose of this study is to analyze the influence of visitors' sense of place on regeneration space using idle industrial facilities on visitors' satisfaction and length of stay. For this purpose, this study selected Mullae Art Village in Seoul as a study site and conducted a questionnaire survey focused on visitors. The results of an exploratory factor analysis (EFA), reliability analysis and multiple regression analysis show that among the sense of place factors of Mullae Art Village 'Attractiveness' and 'Meaningfulness' have a positive influence on visitor satisfaction and length of stay. 'Attractiveness' was found to be the most influential factor. 'Historicity' was found to have no effects on visitor satisfaction and length of stay. In addition, visitor satisfaction has a positive influence on duration of stay. These results suggest that it is important to analyze the sense of place of idle industrial facilities. It will be a useful guide for urban space planners in revitalizing and establishing a marketing strategy for these spaces.
도시재생공간 방문자들의 장소성 인지와 장소선택: 사회적 기억이 없는 20~30대 방문자들을 대상으로
윤한 ( Han Yoon ),윤희정 ( Heejeong Yun ) 관광경영학회 2019 관광경영연구 Vol.89 No.-
The purpose of this study is to analyze the influence of sense of place of visitors with no social memories visited urban regeneration space on their place satisfaction and choice of place. For this purpose, this study selected 20s and 30s visitors as the subject of study and Mullae Art Village as a study site. The main results of an exploratory factor analysis (EFA), an confirmatory factor analysis (CFA) and an structural equation modeling (SEM) show that among the sense of place factors of the study site, ‘attractiveness’ and ‘amenities’ have positive influence on visitors’ place satisfaction and choice of place. However, ‘meaning’ was found to have no effects on visitors’ satisfaction and choice of place. These results suggest that it is important to analyze the sense of place of young generations with no social common memories. It will be a useful guide for urban space planners in revitalizing and establishing a sustainable place marketing strategies for these spaces.
테이크아웃 차(茶) 전문점의 브랜드 개성, 브랜드 인지 차이분석
윤한 ( Yoon Han ),이문아 ( Li Wen-ya ),김영국 ( Kim Yeong-gug ) 한국이벤트컨벤션학회 2017 이벤트 컨벤션 연구 Vol.13 No.1
The purposes of this study is to investigate a difference of brand personality and brand awareness focused on Gongcha, which is one of famous tea cafes between Korean and Taiwanese groups. An online survey was conducted to achieve the aim of the sturdy, a total of 300 usable responses were obtained in Korea(n=150) and Taiwan(n=150) for the main survey. As a result, in terms of brand awareness, although both Korean and Taiwanese groups highly recognized Gongcha, Korean group showed more favorable and believable attitudes, compared with Taiwanese groups. While the Taiwanese believed that brand personality of Gongcha are fashionable, leading, and attractive brand personality, but the Korean perceived Gongcha as a unique and professional brand. The theoretical and practical implications are discussed for further research based on the results of this study.
평형 Gold 부호를 이용한 직접대역확산 방식 송신기의 구현
차균현,송문규,윤한 고려대학교 공학기술연구소 1993 고려대학교 생산기술연구소 생기연논문집 Vol.29 No.1
A spread spectrum multiple access system is not only useful in military communication, but also is becoming important in the commercial applications. In this paper, a transmitter has been realized using direct sequence techniques for spread spectrum multiple access. The input signal is digitized through CVSD modulator, and differentially encoded. The encoded data is then modulo-2 added to the 15 stage PN Gold code. Since Gold code is well bounded and it has low cross correlations, it is often used in multiple access situation. The data rate is 32 Kbps, and the chip rate is 4 Mcps. Therefore, the processing gain is about 21 ㏈. The spread spectrum signal modulates the carrier at 70 ㎒. The power spectrum of the spread spectrum signal is identical to that of the PN Gold code, and the data can be well concealed by the PN Gold code.