기포 체인의 기포 상승 궤적 불안정성

여지은(Jieun Yeo),박형민(Hyungmin Park) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11

We experimentally investigate the behavior of individual bubbles within the bubble chain, influenced by adjacent bubbles and the bubble-induced flow, by changing the bubble generation frequency up to 30 Hz. All the bubbles had a diameter of 2.7±0.1 mm. We measure the bubble dynamics using the 2-phase high-speed shadowgraphy technique. It is measured that the mean principal oscillation amplitude had a similar magnitude to that of the single bubble, even the bubble frequency increases significantly. On the other hand, the maximum secondary oscillation amplitude gradually increases and is converged to about 30% of the mean principal oscillation amplitude from 15Hz or higher. Based on this result, we understand that the major oscillation characteristics of each bubble in the bubble chain has a strong tendency to be maintained, although the large positional deviation is caused are not by the interactions with adjacent bubbles at higher bubble frequency.

이태리 한국문화원 태권도강좌에 관한 문화기술지 연구

여지은(Yeo, Ji Eun) 한국체육교육학회 2021 한국체육교육학회지 Vol.26 No.1

본 연구에서 연구자는 이태리 로마 한국 문화원이라는 한국 문화 홍보를 목적으로 하는 기관의 태권도 강좌를 통해 형성되는 문화를 기술하고 태권도가 특정 공간에서 수행됨으로써 가지는 의미를 전달하고자 하였다. 연구를 위해 이태리, 로마 소개 한국 문화원의 태권도 강좌를 3개월간 참여 관찰하였으며 이를 통해 수집한 참여관찰지, 2인의 주요 정보제공자와의 인터뷰, 수업 촬영 자료 및 녹음 자료 등을 자료로 수집하여 활용하였다. 수집된 자료는 ‘공간’, ‘행위자’, ‘활동’, ‘대상’, ‘행위’, ‘사건’, ‘시간’, ‘목표’, ‘감정’이라는 키워드를 중심으로 기술하고 분석하였다. 우선, 낯선 문화 사람들의 태권도 수행의 ‘과정’에 초점을 두고 ‘수련의 공간’, ‘수강생들’, ‘태권도의 수련과정에서 나타나는 행위 양식’을 살펴보았다. 이후, 심층적으로 이태리인 수련생들이 태권도를 배운다는 것의 의미를 태권도를 통해 ‘한국문화 배우기’, ‘새로움에 집중하기’, ‘행위의 공유를 통한 관계 맺기’로 분석하고 이를 다시 문화적으로 해석하여 보았다. 낯설은 몸의 문화를 체험하고 습득하는 과정에서 몸을 기반으로 한 소통의 문화가 나타나며 이것이 태권도가 문화전달의 수단으로 활용되는 방식을 설명해 주고 있는 것으로 파악되었다. Purpose: This study aimed to describe culture formed through Taekwondo lecture of an organization aimed at promoting Korean culture of the Korean Cultural Center in Rome, Italy, and to convey the meaning of Taekwondo by performing it in a specific space. Methods: For the study, the researcher participated in a Taekwondo lecture at the Korean Cultural Center in Italy, Rome, for three months. Data were collected through participant observation at the sites and interviews with two major informants. Data analysis involved focusing on space, actor, activity, object, action, event, time, goal, and emotion. Result: First of all, focusing on the process of Taekwondo practice of people from unfamiliar cultures, the researcher looked at the training space, students, and behavior patterns that appear in the training process of Taekwondo. After that, the researcher analyzed the meaning that Italian trainees learn Taekwondo in-depth as Learning Korean culture, Focusing on newness and building a relationship through Taekwondo"s sharing behavior was analyzed and interpreted based on cultural background. Conclusion: In experiencing and acquiring an unfamiliar body culture, a culture of communication-based on the body emerged, and this was found to explain how Taekwondo was used as a means of cultural transmission.

유아 체육놀이지도자의 전문성 경험탐색

여지은(Ji Eun Yeo) 한국사회체육학회 2009 한국사회체육학회지 Vol.0 No.38

The purpose of this study is to represent and to analyze expert experience for PE teachers of Early Childhood by using the method of narrative inquiry. The participants of this research were selected three professional playful activity teachers. The main materials were the collected stories through in-depth interviews, and it was analyzed by five steps; attending, telling, transcribing, analyzing, and reading. Each individual experience and story of the three participants was reconstructed to the live context through the researcher`s describing and it resulted in three voices. The voice noticed the process of becoming a professional playful PE teacher. For three participants, becoming a playful PE teacher was a experience of technical work however they were not prepared as experts for anything: attitude, knowledge and skill to be needed teaching playful activities for children before their participation in the educational field. Generally, before entering the educational situation as a teacher they have to acquire expertise but every participants experienced it during the process of their teaching. Through the analysis of those teachers` experience, it is concluded that providing expertise curriculum to playful PE teachers for early childhood is the basic difficulty in general education field of early childhood.

주거용 건물에서 전열매트 사용에 따른 재실자의 국부적 온열쾌적에 관한 실험적 연구

여지은(Yeo, Ji-Eun),문선혜(Mun, Sun-Hye),허정호(Huh, Jung-Ho) 대한건축학회 2017 大韓建築學會論文集 : 構造系 Vol.33 No.9

The purpose of this study was to analyze the effects of the personal heating device on local thermal comfort of occupants. In this study, the field survey in a residential building was preceded with composite heating systems including the heating mat. The survey results show that most of the subjects preferred higher thermal sensation on their lower body parts. There is a big difference on comparison the survey results with the thermal comfort indices. In the case of buttocks, the skin temperature was the highest value of 37.3℃(maximum), and over 90% of subjects responded as ‘comfort’. A logistic regression was used with the skin temperature and the survey results, and quantitative relation was carried out. Throughout this paper, the heating characteristics in residential buildings and the analysis of the local thermal comfort in actual conditions were carried out.

기업역량과 외부협력이 벤처기업의 조기 국제화에 미치는 영향 : 창업자 소유지분과 경험의 조절 효과를 중심으로

여지은(Yeo, Ji-Eun),유정이(Yu, Jeong-I),강신형(Kang, Shinhyung) 한국창업학회 2021 한국창업학회지 Vol.16 No.1

일부 벤처기업은 창업 초기 단계에서 국제화를 추진하여 일반적인 벤처기업에 비해 빠르게 성장하고 더 나은 성과를 창출한다. 조기 국제화의 선행요인에 관한 기존 연구는 자원기반 관점에서 보유 자원과 역량의 경쟁력 수준이 조기 국제화 가능성을 높이는 것으로 보고한다. 이처럼 기존연구는 기업 자원과 역량이 조기 국제화 과정에 활용될 것임을 암묵적으로 가정하고 있으나 벤처기업의 국제화 전략 실행 여부는 창업자의 전략적 선택에 따라 달라진다. 이에 본 연구는 창업자의 전략적 선택에 영향을 미치는 창업자의 소유지분과 관련 산업 경험 및 과거 창업경험이 기업역량 및 외부협력과 조기 국제화 가능성 간의 관계를 어떻게 조절하는지 살펴봤다. 실증을 위해 2016년부터 2018년까지의 벤처기업실태조사 자료를 활용했다. 창업자 소유지분이나 관련산업 경험이 적거나 과거 창업경험이 없는 경우 기업역량이나 외부협력 수준이 높음에도 불구하고 오히려 조기 국제화 가능성이 작아짐을 알 수 있었다. 이는 기업의 기술이나 네트워크 역량 등의 자원 보유 여부가 바로 조기 국제화로 이어지지 않는다는 것을 의미한다. Some ventures promote internationalization in their early stages for growth and performance. Existing studies on the antecedents of early internationalization report that the level of competitiveness of company’s resources increases the likelihood of early internationalization. However the existing research implicitly assumes that the resources owned by the company will be used for internationalization. But whether a venture implements an internationalization strategy or not depends on the allocation of resources by the founder. This study examined how founders equity ownership, industry-related work experience, and serial entrepreneurship experience moderate the relationship between the level of internal and external resource competitiveness and the likelihood of early internationalization. We used 2016-2018 Survey of Korea Venture Firms for the empirical analysis. From the analysis, we found positive moderating effect of the founder factors. In addition, we also found that if the equity ownership of the founder, the industry-related work experience and serial entrepreneurship experience are low, the likelihood of the early internationalization decreases despite of the high level of company competency or external cooperation. This infers that the existence of resources, such as a company s technology or network capabilities, may not directly lead to early internationalization.

노인여성의 여가 스포츠 참여를 통한 레크리에이션적 가치 체험

여지은(Ji Eun Yeo) 한국여가레크리에이션학회 2009 한국여가레크리에이션학회지 Vol.33 No.4

The purpose of this study is to find values of leisure sports activities for elderly women in terms of creating or designing active elderly life rather than living in their remaining life. For the study three senior women who were participants in leisure sports activities, were interviewed and the followings were concluded. First, elderly women have an eager desire for recovering their feminity through the leisure sports activities. They believed participation in leisure sports activity as a process to recover healthy and beautiful body which were once lost by feminine activities, for instance giving a birth, nursing, and aging. Second, there is a cultural value which can share each other in elderly women`s group. That is, through the independent physical activity the leisure sports activity expands its meaning to cultural life for senior women, to express themselves. Third, as a part of life long education, the leisure sports activity has educational meaning for elderly women to adapt properly in the fast-changing society.

느린 여가로써의 걷기에 관한 담론

여지은(Ji Eun Yeo),노미라(Mi Ra Noh) 한국여가레크리에이션학회 2013 한국여가레크리에이션학회지 Vol.37 No.2

Present study aims to suggest a discourse of walking, one of main phenomenon for slow leisure in digital generation. To construct the discourse, historical, philosophical, and leisure aspects of walking were considered through the literatures. A drawing conclusion was summarized as follows: Firstly, the meaning of walking in leisure that has been changed from its biological meaning, walking erect was considered. Secondly, the meaning of walking not only physical activity, but in philosophical speculation was searched. Thirdly, the books related to walking were classified depending on the important key words, and finally, the reason why walking is representative activity of slow leisure was investigated.

중년여성의 신체적 여가활동 체험공간 의미

여지은(Ji Eun Yeo) 한국여가레크리에이션학회 2011 한국여가레크리에이션학회지 Vol.35 No.3

This study aims to discuss the necessity of the space for physical leisure activities through analyzing the meaning of lived space by the major consumer of the space, the middle-aged women, and understanding the essence of the space. Seven middle-aged women who have participated in a physical leisure activities for more than five years were chosen as participants of this study and the data was collected from the participants by 2-3 times of in-depth interviews for about 30 minutes to one hour at each interview. The collected data was interpreted based on the diverse concepts in the lived space for physical activities, and focused on personal lived life of each participants narratively. Through the process of reduction, the meaning of spaces for physical leisure activities were recognized as follows. Firstly, for middle-aged women, the spaces was a kind of new vision in their life. Secondly, the lived spaces linked with their social and personal network. Lastly, it was not functional space but real space contained multiple aspects for middle-aged women` life. To conclude, the essence of the lived space for physical leisure activities of middle-aged women was organic and ecological space existed their new life.

Round 함수 병렬화에 따른 SHA-512 하드웨어 구현 분석

여지은(Jieun Yeo),최소연(Soyeon Choi),박지운(Jiwoon Park),유호영(Hoyoung Yoo) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.8

재외국민 청년의 삶과 여가에 관한 내러티브

여지은 ( Yeo Ji-eun ) 한국체육학회 2019 한국체육학회지 Vol.58 No.6

본 연구는 해외에 체류하며 타문화의 환경에서 살아가는 재외국민 청년의 삶과 여가의 의미를 서사적 접근을 통해 이해해 보기 위해 수행되었다. 이를 위해 이태리 로마에 각각 9년과 4년째 거주하고 있는 31세의 여성 한 명과 28세의 남성 한 명을 연구참여자로 선정하였고 심층 인터뷰와 연구 참여자들의 생활세계의 관찰에 대한 연구자의 현장 노트 등을 통해 자료를 수집하였다. 수집된 자료들은 내러티브탐구에 기초하여 현장에의 접근, 이야기하기, 전사하기, 해석하기, 다시 읽기의 과정을 통해 타국에서의 삶과 여가에 대한 서사를 맥락적으로 이해하며 기술하고자 노력하였다. 탐색을 통해 연구자는 연구참여자의 내러티브가 스스로의 선택에 의해 시작된 타국에서의 삶과 여가는 관계 맺기의 과정 속에서 변화하며 그 곳에서의 삶은 다양한 경험, 그 경험 속에 산재해 있는 어려움, 그 어려움을 극복하는 힘이 되는 여가, 생존을 위한 여가로 전환되는 과정을 확인할 수 있었다. 결론적으로 해외에서의 청년들의 삶은 낯선 환경을 극복하기 위한 지지수단으로서의 여가와 경제적 어려움으로 인한 소비지향적 여가활동의 지양, 새로운 관계맺음에 따른 변화되는 일상의 루틴과 여가패턴의 결과로 귀결되는 것으로 해석되었다. This study was conducted to understand the meaning of the life and leisure of the young Koreans living abroad and living in cross-cultural environments through an narrative approach. For this purpose, a 31-year-old female and a 28-year-old male who have lived in Rome, Italy, for 9 and 4 years respectively, were selected as research participants. The data was collected through in-depth interviews with the participants, and researcher's field notes on them for their life in the living world. The collected data tried to contextually understand and describe the narrative about life and leisure in other countries through the process of approaching, talking, transcribing, interpreting, and rereading on the basis of narrative exploration. Through exploration, we can confirm that the narrative of the participants changes in the process of forming a relationship of life and leisure in other countries, which is initiated by their own choice. We can see the process of turning into leisure for survival from the life of a variety of experiences, and difficulties interspersed in those experiences. In conclusion, the lives of young korean living abroad can be interpreted relying on leisure as a support means, for overcoming the unfamiliar environment, the avoidance of consumption-oriented leisure activities due to economic difficulties, and the result of changing daily routines and leisure patterns.