사다리꼴 fin: 사각 fin과의 열손실 비교와 열손실에 미치는 경사요소의 효과

강형석,윤세창 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.A

Heat loss from the trapezoidal fins haying different upper side slope and that from a rectangular fin are investigated by the three dimensional analytic method. It is shown that the trapezoidal fins having different upper side slope become an approximate rectangular fin by inst adjusting the slope factor. The comparison of the heat loss between a rectangular fin and an approximate rectangular fin is represented as a function of the non-dimensional fin length, fin width and Biot number to make sure that the analysis on the trapezoidal fins having different upper side slope is countable. One of the results is that the relative value of heat loss between a rectangular fin and an approximate rectangular fin is less than 1.5% for given ranges of non-dimensional length and width in case of Bi = 0.1.

황색포도상구균 신속 검출용 간이 진단키트

김기영,박샛별,문지혜,이상대,이새롬,장윤정 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

This study was performed to develop a rapid test kit for pathogenic Staphylococcus in various samples. The rapid detection kit has been fabricated based on nitrocellulose lateral-flow strip. Colloidal gold and Staphylococcus antibodies were used as a tag and a receptor, respectively. Manually spotted Staphylococcus antibody and anti-mouse antibody on the surface of nitrocellulose membrane were used as test and control lines, espectively. Feasibility of the rapid kit to detect Staphylococcus aureus in samples were evaluated. The intensity of the color of the tes line started to increase with the samples in which higher concentration of the cells were contained. The sensitivity of the sensor was 106 cfu/mL Staphylococcus spiked in PBS. Also, the rapid test kit could detect 105 cfu/mL of Staphylococcus in chicken meat extract.

Volunteer Management of the Hi Seoul Festival

Sea-Youn Kwak,Yoon-Tae Kim 한국콘텐츠학회 2009 International Journal of Contents Vol.5 No.3

For the success of a festival, effective volunteer management is axiomatic. Given the dramatically increased size and quality of festivals and events in Korea over the past fifteen years, the importance of effective volunteer management has been overlooked among festival organizations in comparison to similar festivals in western countries. This paper provides a description and an assessment of the Hi Seoul Festival 2009 volunteer program based on an seven-step ideal process of an effective festival volunteer program with suggestions for the program development by reviewing organizational documents, and an interview with a staff member of the Hi Seoul Festival organization, and a survey pertinent to festival volunteers’ motivation. This study shows college students are more interested in volunteering at festivals in Korea with the primary motivation of developing relationships and gaining work experience. It also suggests that the Hi Seoul Festival organization should fully appreciate the importance of an effective volunteer program and the position and work of a volunteer coordinator.

스페셜 이벤트 자원봉사자 동기 측정 척도 연구

곽서연 ( Sea Youn Kwak ) 한국이벤트컨벤션학회 2014 이벤트 컨벤션 연구 Vol.10 No.1

The aim of this study was to develop event volunteer motivation scale for Korean by using Farrell, Johnston & Twynam(1998)``s Special Event Volunteer Motivation Scale(SEVMS) and examine its validity and reliability. To conduct this study, a total of 282 individuals who were volunteers of 2012 Chuncheon International Mime Festival. To validity of the questionnaire, we utilized exploratory and confirmatory factor analysis. In order to test the scale reliability, the item-total correlation and Cronbach``s α were determined and analyzed. As a result, 21items of 4 factors(purposive, solidary, external traditions, commitments) were extracted and confirmed from the scale. The validity and reliability of the Special Event Volunteer Motivation Scale were relatively high. This study would be important data to seriously conduct future studies on event volunteers`` motivation with a valid measurement scale.

Volunteer Management of the Hi Seoul Festival

Kwak, Sea-Youn,Kim, Yoon-Tae The Korea Contents Association 2009 International Journal of Contents Vol.5 No.3

For the success of a festival, effective volunteer management is axiomatic. Given the dramatically increased size and quality of festivals and events in Korea over the past fifteen years, the importance of effective volunteer management has been overlooked among festival organizations in comparison to similar festivals in western countries. This paper provides a description and an assessment of the Hi Seoul Festival 2009 volunteer program based on an seven-step ideal process of an effective festival volunteer program with suggestions for the program development by reviewing organizational documents, and an interview with a staff member of the Hi Seoul Festival organization, and a survey pertinent to festival volunteers' motivation. This study shows college students are more interested in volunteering at festivals in Korea with the primary motivation of developing relationships and gaining work experience. It also suggests that the Hi Seoul Festival organization should fully appreciate the importance of an effective volunteer program and the position and work of a volunteer coordinator.

축제 조직의 사회적 자본이 조직몰입과 조직시민행동에 미치는 영향 연구

곽서연 ( Sea Youn Kwak ) 한국이벤트컨벤션학회 2013 이벤트 컨벤션 연구 Vol.9 No.1

The purpose of this study was to examine the relationship among social capital in festival organizations and volunteers` organizational commitment and organizational citizenship behavior(OCB). The four hypotheses were tested on data collected from 407 volunteers and analyzed using SPSS 20 and AMOS 20 in the manner of EFA, multiple regression analysis and SEM. As a result of the EFA, the construct validity of each variable of social capital was ensured. However, the validity of continuance commitment among the three sub-dimensions of organizational commitment was ensured by removing three metrics. OCB initially consisted of five sub-dimensions, but was collapsed as four dimensions. The results of the hypothesis is as follows: (1) the social capital affect OCB positively, especially networks positively affected all of sub-dimensions of OCB, (2) the social capital affected affective commitment and normative commitment positively, but continuance commitment negatively, (3) except continuance commitment, affective commitment and normative commitment were verified to play a mediating role between social capital and OCB. The result of this study could provide festival organizers insights of managing volunteers, they have to focus on strengthening networks in organizations and work on increasing volunteers` affective commitment and normative commitment for the success of their festivals.

축제 자원봉사자 동기와 만족도에 관한 연구: 춘천마임축제 사례를 중심으로

곽서연 ( Sea Youn Kwak ),박순천 ( Soon Chun Park ) 한국이벤트컨벤션학회 2011 이벤트 컨벤션 연구 Vol.7 No.1

본 연구는 축제와 이벤트 성공의 중요한 역할을 하고 있는 자원봉사자에 대한 연구로써 동기, 참여만족도 등을 조사하여, 축제 자원봉사자 본질적인 이해를 하고 현장에서 축제자원봉사자 관리를 위한 기초자료를 제공하기 위함이다. 설문은1994 년 이래 효과적인 자원봉사자 관리 프로그램을 운영하여 지역대학생들을 대상으로 축제자원봉사 문화를 정착해 온 춘천마임축제 자원 봉사자를 대상으로 하였다. 요인분석을 통해 자원봉사자 참가동기는 사회적교류, 공공이익, 경험충족, 직업개발기회4 개의 요인으로 구분되었으며, 이 중 사회적교류의 가장 주요한 참가동기로 나타났다. 참가만족은 개인적만족과 사회적만족으로 구분되는데, 사회적만족은 자원봉사자의 재참가의도에 영향을 주었다. 본 연구는 공연예술축제의 자원봉사자를 대상으로 조사된 것이 한계이며, 앞으로 다른 분야의 축제 자원봉사자를 대상으로도 조사가 필요하다.

축제 조직의 사회적 자본 측정 척도 - 타당도 및 신뢰도 검증

곽서연 ( Sea Youn Kwak ) 한국이벤트컨벤션학회 2015 이벤트 컨벤션 연구 Vol.11 No.2

The aim of this study was to develop a scale to measure social capital in festival organizations, and verify its validity and reliability. By the literature (documentary study) and empirical (empirical study) as a research method to achieve the objectives of this study. Empirical research was conducted a survey of 17 questions of 3 factors(trust, norms and networks) by 201 Chuncheon Mime Festival volunteers. To validity of the questionnaire, exploratory and confirmatory factor analysis and Crobach’s α were determined and analyzed. As a result, two items were deleted and the ‘networks’ factor were divided to ‘peer collaboration’ and ‘networks.’

Evaluation of Nitrogen Fixation between Supernodulating Soybean Mutants and their Wild-Types Using $^{15}N$ in Field Conditions

Youn, Jong-Tag,Van, Kyu-Jung,Ryu, Yong-Hwan,Shimada, Shinji,Lee, Choon-Ki,Kim, Sun-Lim,Seo, Sea-Jung,Lee, Suk-Ha The Korean Society of Crop Science 2008 Journal of crop science and biotechnology Vol.11 No.1

Improvement of $N_2$ fixation by symbiotic rhizobia is considered an effective means for enhancing its productivity without high input of nitrogen(N) fertilizer. Several methods to improve $N_2$ fixation have been proposed including the use of supernodulating mutants. The objective of this research was to identify the varietal difference in N and $N_2$-fixation ability among the soybean supernodulating mutants, SS2-2 and Sakukei 4, with different nodulation abilities using $^{15}N$ in field conditions in both Korea and Japan. The dry weight(DW) was higher in wild-type soybeans. The distribution rate of DW in each plant part was high in seeds of supernoduating and wild-type soybeans but high in stems and leaves of non-nodulating mutants. Although the supernodulating mutants had a low DW rate at maturity, they showed a similar $N_2$ fixation ability compared with wild-type. Supernodulating mutant plants mainly obtained N from $N_2$ fixation, while soil N was the main resource for obtaining N in non-nodulating mutants. The percentage of N derived from atmospheric dinitrogen(Ndfa) was higher in supernodulating mutants than in wild-type and relatively high in seeds between plant parts at maturity. In particular, supernodulating mutants showed higher N content in roots than those of wild-type and non-nodulating mutants. It was considered that supernodulating mutants have the advantage of saving nitrate in soil and being beneficial for N absorption of subsequent crops due to their conserving more N in the field and releasing considerable amounts of N from roots and leaves fallen to the soil.

Vegetation Structure of Natural Populations of a Honey Plant, Hovenia dulcis var. koreana Nakai in Korea

Sea-Hyun Kim,Jingyu Han,Youn-Hee Song,Dong-Jun Chung 한국양봉학회 2008 韓國養蜂學會誌 Vol.23 No.3