農民技術受容에 影響을 주는 要因의 比較分析 : 關係機關과 情報傳達媒體를 中心으로

鄭址雄,崔敏浩,金性洙,徐圭善,李昶植 서울大學校 農科大學 1984 서울대농학연구지 Vol.9 No.2

The purpose of the study was to analyze the variables affecting farmers' adoption process of agricultural innovations in Korea. Specific objectives of the study were to ; (1) review the adoption process and the variables associated with this process, (2) investigate the rate of adoption of selected agricultural innovations in the fields of rice production, animal husbandary and horticulture, (3) analyze communication media and change agencies or institutions which affected the adoption of agricultural innovations, and (4) identify the relations of the farmers' adoption and communication exposure behavior. Data for the study were collected from 393 cluster sampled farmers out of selected 17 rural villages in Korea. Five graduate students and three faculty members of Seoul National University participated in conducting interview with pre-tested questionnairs. The data were analyzed by HP 3,000 computer in the College of Agriculture, Seoul National University. Major statistical techniques used for the study were frequency distribution, chi-square and discriminant analysis. Statistical significance was tested at .05 level. The major findings of the study were as follows : 1. Variables associated with the agricultural adoption process were classified into the following six categories ; (1) perceived characteristics of agricultural innovations, (2) personality and characteristics of adopters, (3) the patterns of communication media or channels, (4) efforts of change agents. (5) priorities in agricultural development policies, and (6) characteristics of social system. 2. Rats of adoption were about 83% in application of silicate fertilizers on rice seed bed, 41% in feeding calf starter known as artificial milk to calves, 56% vinyl mulching practices in vegetable cultivation, and 67% in spreading raw rice straw on paddy land to improve soil conditions. 3. Time lag between awareness and adoption appeared to be about seven months in application of silicate fertilizers on rice seed bed, and about a year in feeding calf starter. 4. Change agent interpersonal communication revealed to be the most important factor affecting farmers' awareness in application of silicate fertilizers on rice seed bed, in feeding calf starter, and in spreading raw rice straw on paddy land, while localite interpersonal communication in vinyl mulching practices in vegetable cultivation. 5. Change agent interpersonal communication appeared to be the most important factor affecting farmers' adoption in application of silicate fertilizers on rice seed bed and in feeding calf-starter, Localite interpersonal communications were more important in vinyl mulching practices of vegetable cultivation and in spreading raw rice straw. Localite interpersonal communications were more important factor at adoption stage than at awarenss stage. 6. Agricultural extension agencies appeared to be the most important factor affecting farmers' adoption in application of silicate fertilizers on rice seed bed, in feeding calf starter, and in vinyl mulching practices. Based on the results of this study, the following are recommended for further development of agricultural extension services and effective adoption process of agricultural innovation. 1. The variables associated with the agricultural innovation decision process should be taken into consideration to improve effectiveness of change agencies or agricultural extension services. 2. Effective use of communication media along with the feedback messages from the change agency as well as client system be considered to increase effectiveness and meaningfulness of both systems. 3. Innovative agricultural research be continually sharpen its focus on the highest priority needs of client system by utilizing feedback from farmers through the communication link of change agents. 4. A long-term educational approach by using various communication media be emphasized, and regular field survey on innovation-decision process will prevent discontinuance of innovations.

마이크로파 여기 플라즈마광 생성을 위한 도파관 시스템 설계에 관한 연구

전상재,전후동,송창현,하석영,이승혁,이태호,박의준 금오공과대학교 2005 論文集 Vol.26 No.-

In this paper, the plasma lighting system(PLS) excited by the commercial high power magnetron is developed. The design concepts are based on maximizing the huninous efficacy in conjunction with the miniaturization of waveguide system Furthermore the fine tuning is simplified by using only one stub, and the impedance matching is maximized by introducing the tapering technique. The experimental results show that the luminous efficacy can be dramatically improved by the proposed design method.

Human Rights Damage and Self-esteem of University Students : The Mediating Effect of Hope and Grit

Chang-Seek Lee,Ji-Young Park,Padhaya Pushpa Raj,Umakanta Gautam,Ndam Mbah Denis,Sunit Adhikari 한국디지털정책학회 2019 디지털융복합연구 Vol.17 No.6

CPPU Promotes Fruit Set in Ardisia pusilla

Chang Hee Lee,Oh Keun Kwon,Hyoung Deug Kim,Kwang Seek Lee,Dong Woo Lee 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Pot Plants Production of Multiple-Branched Ardisia pusilla as Influenced by 6- Benzylaminopurine Related to Spray Time after Pinching

Chang Hee Lee,Oh Keun Kwon,Kwang Seek Lee 한국원예학회 2006 Horticulture, Environment, and Biotechnology Vol.47 No.4

This research was designed to produce compact multiple-branched Ardisia pusilla pot plants during short-term by foliar-spraying with 6-benzylaminopurine (BA) related to spraying days after pinching (SDP). Two experiments were conducted by dividing into growth chamber test in winter season and glasshouse test in the following growing season to screen available concentration and spraying time after pinching. In growth chamber test, all rooted-cuttings pinched were foliar-sprayed with 0, 500, and 1500 ㎎ㆍL?¹ BA at 0, 7, 14, and 21 SDP. Branch formation was examined at 8 weeks after pinching. In glasshouse test, all rooted-cuttings pinched were foliar-sprayed with 0, 250, 500, and 1000 ㎎ㆍL?¹ BA at 0, 7, and 14 SDP. Final growth characteristics were examined at 12 weeks after pinching. Under growth chamber condition, although multiple branches formation successfully increased in BA concentration-dependent manner compared with the control, 1,500 ㎎ㆍL?¹ BA induced the highest lateral branches at 7 SDP followed by 0 and 14 SDP, subsequently at 8 weeks after pinching. In glasshouse culture, although applications at 7 and 14 SDP increased the number of primary and secondary branches in BA concentration-dependent manner, the number of branches in all combination between concentration and SDP did not scarcely increase further after 4 weeks. However, the number of secondary branches derived from primary branches were dramatically decreased to less than one branch after 4 weeks. Thus, it was suggested that both primary and secondary branching initiation, new lateral bud differentiation of A. pusilla, by BA and pinching were limited within 4 weeks after treatment. Moreover, secondary branches affected by BA started to degenerate after 4 weeks. Comparing with the control by pinching alone, all BA applications reduced plant size regardless of concentration and SDP. However, the increase of SDP and BA concentration reduced plant height and width, while induced more lateral branches. Thus, compact multiple-branched A. pusilla pot plants were successfully produced by using 1,000 ㎎ㆍL?¹ BA at 7-14 SDPs within 12 weeks after pinching.

N-(2-Chloro-4-pyridyl)-N'-phenylurea Promotes Fruit Set of Ardisia pusilla

Chang Hee Lee,Oh Keun Kwon,Kwang Seek Lee 한국원예학회 2006 Horticulture, Environment, and Biotechnology Vol.47 No.2

Experiments were initiated to screen an efficient plant bioregulator (PBR) for promoting fruit set of Ardisia pusilla in 2004 and to determine suitable concentration and treating time of a selected PBR in 2005. Three PBRs such as mepiquat chloride (MC), ρ-chlorophenoxyacetic acid (4-CPA), and N-(2-chloro-4-pyridyl)-N'- phenylurea (CPPU) were investigated for fruit set promotion. Plant growth and fruit set of one-year-old rooted cuttings foliar-sprayed with the three PBRs at each four concentrations on May 5, 2004 (about 50% flowering stage) were examined on November 11, 2004. Comparing fruit set of the control (14.9%), CPPU treatments showed the highest fruit set (45.0%) among the three PBRs and stable responses of fruit set regardless of its concentrations (2.5?20 ㎎ㆍL?¹). Thus, CPPU was re-evaluated for fruit set promotion in 2005, dividing foliar-spraying time by three flowering stages (20, 50, and 80%) from May 30 to June 13. CPPU treatment at 80% flowering level was the most effective in fruit set promotion than those at other levels regardless of its concentrations (5?20 ㎎ㆍL?¹). Fruits obtained from all treatments produced 100% normal seeds and seed germination percentages did not show significant difference between all PBRs and control. In conclusion, CPPU was found to be an efficient fruit set promoter of A. pusilla due to high fruit set and constant stability regardless of its concentrations. Moreover, A. pusilla plants treated with CPPU did not produce any seedless fruit related to parthenocarpy, which is generally found in several horticultural crops after this PBR application.

Mediating effect of growth mindset and grit between human rights victimization and self-esteem

Chang Seek Lee,Ji Young Park,Nanje Bakoma Daniel,Sylvia Ngonde,Akunne Faith,Mediki Augustine Eboka,Ma Nsume Pamella 한국디지털정책학회 2017 디지털융복합연구 Vol.15 No.9

스트레스에 대한 대처전략의 중재효과: 남녀대학생의 차이를 중심으로

이창식(Lee Chang-Seek),김윤정(Kim Yun-Jeong) 한국청소년정책연구원 2004 한국청소년연구 Vol.- No.39,40

스트레스와 적응, 대처전략의 수준 및 이러한 수준이 대학생의 성별에 따라 차이가 있는가를 알아보고자 한다. 둘째, 성별에 따른 차이가 두드러지는 경우 스트레스-적응에서 대처 전략의 중재효과가 대학생의 성별에 따라 다른가를 규명해보자 하고자 하였다.<br/> 연구결과 첫째, 대학생들은 학업스트레스를 가장 많이 경험하며, 남자대학생이 문제행동을 많이 하고, 학교생활, 대인관계, 성충동에서 스트레스를 많이 경험하나 대처전략에서는 여자대학생이 문제해결적 대처방식을 더 많이 사용하였다. 둘째, 대처전략의 주효과가 부분적으로 검증되었으며, 남자대학생에게는 문제해결적 대처가 자존감을 보호하고, 여학생은 문제해결적 대처와 정서보호적 대처가 자존감을 보호하는 것으로 나타났다. 셋째, 스트레스와 자존감간의 관계에서 정서보호대처의 중재효과가 발견되었다. 남학생의 경우 성충동에서 여자대학생의 경우 가족관계스트레스와 대인관계스트레스에서 정서보호대처전략을 사용하면 자존감이 향상되는 것으로 나타났다. 넷째, 스트레스와 문제행동간의 관계에서 문제해결대처 및 정서보호대처의 악화효과가 발견되었다. 남자대학생의 경우, 학교생활과 가족관계, 성충동 스트레스가 문제행동에 미치는 부정적인 영향이 대처전략을 사용하는 경우 더 악화되는 것으로 나타났다. 여자대학생의 경우 성충동이 심할 때 정서보호대처전략을 사용하는 것이 여자대학생의 문제행동을 가중시키는 것으로 나타났다. This study examined differences of stress, adjustment, and coping strategies by gender, and then if differences were manifest, moderated effects of coping strategies of stress among a sample of 373 university students.<br/> First, university students had the highest score on academic stress. Second, main effects of coping strategies were tested. For male, problem-focused coping style, and for female, both of problem-focused coping style and emotion-focused coping style protected their self-esteem. Third, moderated effects of emotion-focused coping style were found from the relationship of stress and self-esteem. The self-esteem was improved when sexual impulse for male and family-related stress and human relationship stress for female were used. Fourth, noxious effects of problem-focused coping style and emotion-focused coping style were found from the relationship of stress and problem-focused coping style. For male, when stress from school life, family relationship and sexual impulse affected negative effects on problem behaviors, coping strategies became worse. But for female, when sexual impulse was<br/> high, emotion-focused coping style increased problem behaviors.

주민 의식에 기초한 쾌적 환경 지표 및 요구 - 충남 서산시를 중심으로 -

이창식 ( Chang Seek Lee ) 한국농촌계획학회 1997 농촌계획 Vol.3 No.2

농촌다문화 초등학교 학생의 사회적 지지 및 부모-자녀간 의사소통이 정서지능에 미치는 영향

이창식 ( Chang Seek Lee ),박지영 ( Ji Young Park ),임인택 ( In Taik Lim ) 한국농촌지도학회 2012 농촌지도와 개발 Vol.19 No.4

이 연구는 농촌 다문화 초등학교 학생들의 발달 과정에서 매우 중요한 사회적지지 및 부모-자녀간의 의사소통과 정서지능과의 관계를 파악하고 이러한 변인들이 일반 및 다문화가정 학생 간에 차이가 있는지를 확인하고자 하였다. 연구결과 첫째, 사회적지지, 개방적 의사소통 및 정서지능 간에는 유의미한 정적 상관 관계가 있었으며, 반면 정서지능과 부모-역기능적 의사소통과는 유의미한 상관 관계를 보이지 않았다. 둘째, 사회적지지, 부모-자녀 간 의사소통, 정서지능은 농촌소규모 다문화초등학교 일반가정 및 다문화가정 학생 간에 차이가 없었다. 셋째, 회귀분석 결과 농촌다문화 초등학교 학생들의 정서지능은 친구지지와 가족지지가 예측변인으로 나타났다. This study was to investigate the relationship among emotional intelligence, social support and parent-child communication of multicultural primary school students in rural areas. All of the students for the study were sampled from three multicultural primary schools in rural areas. About 10% among them were from multicultural family students. First, the result indicated that students` emotional intelligence was positively correlated with social support and open communication with their parents. Second, there were no significant differences between unicultural family and multicultural family in social support, parentchild communication, and emotional intelligence. Third, the result of regression analysis revealed that peer and family support were predictors of emotional intelligence of multicultural primary school students in rural areas. The implications for the improvement strategy for multicultural primary school in rural ares were suggested.