• Journal of Internet Computing and Services
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• v.23 no.3
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• pp.77-85
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• 2022

Unlike previous studies that focused on the diversity of YouTube content, this study tried to identify factors affecting users' satisfaction with the YouTube recommendation system. Specifically, by adding content preference suitability and privacy concerns to the technology acceptance model, we empirically analyzed how these variables affect user's satisfaction of the YouTube AI recommendation system. For this purpose, asurvey was conducted on college students in their 20s and 30s, and the main research results are as follows. First, in the respondents of this study, playfulness and usefulness, which are major variables of the technology acceptance model, appeared as significant factors affecting the satisfaction of the YouTube AI recommendation system, whereas the effect of ease to use was not found. Second, content preference suitability was found to affect the satisfaction with AI recommendation system, but privacy concerns did not affect the satisfaction with YouTube AI recommendation system. Based on these research results, the implications of the study and the directions for future studies were suggested.

• Journal of The Korean Association For Science Education
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• v.22 no.4
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• pp.892-905
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• 2002

There are an increasing emphasis on affective domain, for example interest or belief, in science education. But decreasing interest on learning science and tendency to avoid science-related job are serious problems of secondary science education, especially in case of vocational high school students. However there are few researches for vocational high school students. In this study, preference for science is assumed to be a multidimensional property that reveals ones' behavioral volition and valuation as well as emotional response upon learning science. To investigate vocational high school students' preference for science and its causal factors, a Likert style questionnaire was developed through factor analysis. Students' preference for science was analyzed by 3 categories, and its causal factors are investigated by path analysis using structural equation model.

• Journal of The Korean Association For Science Education
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• v.25 no.5
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• pp.571-582
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• 2005

In spite of the importance of cognitive conflict in conceptual change, there has been little research on the characteristics of cognitive conflict in students enrolled at vocational high schools. The purpose of this study was to expose these students' cognitive conflict types and investigate characteristics of cognitive conflict according to the type of cognitive conflict. This paper examined how vocational students' motivational beliefs and epistemological beliefs affect the process of cognitive conflict when students are confronted with an anomalous situation related to the action and reaction concept. Results indicated that many vocational students experienced low levels of cognitive conflict and remained passive during the explanation of anomalous phenomenon or easily desisted any attempt to resolve the conflict situation because of their epistemological belief to depend on the external absolute knowledge of teachers, an extrinsic motivation to choose easier tasks, or reliance on the teachers' reputations. Therefore, Instructors need to recognize these characteristics in order to facilitate vocational students' conceptual change when presenting cognitive conflict tasks.

• Journal of the Economic Geographical Society of Korea
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• v.2 no.1_2
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• pp.123-144
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• 1999

This paper examines the change of quality of life in the Integrated Yosu City and suggests the directions of urban development. Research into the quality of life in local and region scale is interesting both from the point of view of theory and practice, and has attracted much attention in the social sciences since the 1960s. This study is an attempt to examine the change of the quality of hie in the Integrated Yosu City. In the overall assessment of the level of satisfaction about the quality of life during the past five years, most of the respondents have positive evaluation of the changes of quality of urban life. In particular, the quality of living facilities, urban administration and convenience services has relatively improved during the past five years. On the other hand, the quality of physical environment. art and cultural opportunities, transportation options has been backward during the past five years. Therefore, the directions of urban development of the Integrated Yosu City may be summarized as follows: the establishment of a wide transportation network system, waterfront development, the activation of tourism industry and harbor works, the preparation of an urban landscape, the citizens'campaign for a community culture.

• Journal of The Korean Association For Science Education
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• v.30 no.1
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• pp.68-79
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• 2010

This study utilized the What Is Happening In this Class (WIHIC) questionnaire to examine students' perceptions of their science learning environment. Data was collected from 587 middle school students in seven coeducation schools in Seoul. Higher mean scores occurred on the scales of Student cohesiveness, Task orientation, Cooperation and Equity in the WIHIC, whereas lower mean scores occurred on Teacher support, Involvement and Investigation. The effects of gender on students' perceptions of their science learning environment were not statistically significant overall, but girls perceived Student cohesiveness and Cooperation more positively than boys. Correlations between the WIHIC scales of the low-level group that perceived their learning environments negatively (10 percentiles) and the high-level group that perceived their learning environments positively (90 percentiles) were computed. Teacher support, Involvement, Task Orientation and Investigation were highly correlated with each other in the low-level group, whereas only Teacher support and Equity were correlated in the high group. Educational implications were discussed.

• Journal of Mushroom
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• v.17 no.4
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• pp.255-260
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• 2019

The purpose of this study was to identify sector-wise issues that need to be improved for the overall development of the mushroom industry and to prioritize these tasks based on an analysis of the current state of this industry in Korea. To this end, we classified the domestic mushroom industry into four sectors: production, processing, marketing, and export and distribution, and identified major tasks for the improvement of each of these sectors. A total of eleven issues that could be improved were selected, including three each in the production, marketing, and export and distribution sectors, and two in the processing sector. An analytical hierarchy process (AHP) was utilized to identify the issues in each sector that would need to be handled on a priority basis. A questionnaire-based survey was also conducted to gain relevant insights and suggestions from 32 experts in this industry. The present study is significant because it highlights sector-wise priority areas that could be supported by policies and legal measures for the overall development of the mushroom industry.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.127-128
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• 2013

이 연구는 노인의료복지시설 소속 요양보호사들을 대상으로 자기효능감과 직무만족에 대한 요양보호사들의 주관적 인식의 차이를 분석해 보고자 하였다. 분석결과 요양보호사들이 근무하는 노인의료복지시설 유형에 따른 인식의 차이는 없었지만 전체적으로 요양보호사들의 자기효능감과 직무만족의 충족이 노인의료서비스 제공에 있어서 중요하다는 것을 강조하였다. 따라서 노인의료복지시설 소속 요양보호사들이 노인들에게 의료서비스 등을 제공함에 있어서 직무만족과 동시에 지속적으로 높은 수준의 자기효능감을 유지할 수 있도록 하는 인적자원관리전략이 필요함을 시사하였다는데 그 의의가 있다.

• Journal of the KSME
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• v.32 no.4
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• pp.326-334
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• 1992

고온설비에 사용되고 있는 고온재료의 재료 특성변화와 이의 평가방법에 대하여 극히 제한된 범위에서 개략적으로 기술하였다. 이러한 고온설비의 재질열화에 대한 대책은 고온재료의 성능 한계 가까이에서 사용되는 초임 계압 화력발전설비 등을 비교적 조기에 도입한 선진국 공통의 문제로 되고 있다. 우리 나라에서도 최근 발전설비의 보일러 및 터빈을 비롯하여 석유화학 설 비의 압력용기 등과 같이 고온 . 고압하에서 장시간의 운전이력을 갖는 고온기기의 수가 증가 하는 상태에 있고, 급속한 경계규모의 확대와 쾌적한 생활환경의 선호추세로 에너지의 수요가 급증하고 있어서 이들 고온설비의 합리적 이용을 도모하기 위하여 고효율화가 요구되므로 이들 설비의 사용조건은 더욱 가혹해지고 있어서 시급히 해결해야 할 과제로 되고 있다. 이를 원활 하게 해결하기 위해서는 산 . 학. 연의 공동연구를 통하여 종합적이고 체계적인 연구가 절실하게 요구되며, 상호 습득하고 있는 정보교환도 중요하다

• Proceedings of the ESK Conference
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• 1997.04a
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• pp.176-182
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• 1997

본 연구는 고객 지향적 통시서비스 품질기준 정립을 위한 기초연구 과제로서 크게 통신 고객의 감 성파악 및 감성실험 부분으로 이루어졌다. 우선, 전형적 감성공학적 접근법에 의해 화상회의 시스템 을 사용할 때 느낄 수 있는 206개의 감성어휘가 추출되었으며 이를 어의적 기준과 상대적인 중요도를 기준으로 하여 10개의 주요 감성으로 정리하였다. 사용자의 불만사항 등으로부터 감성실험을 위한 설계변수를 추출하였으며 실험환경 구축을 위한 simulator가 구성되었다. 실험은 음성지연, 음성에코, 화면의 초당 프레임수 그리고 통화주제를 인자로 하는 2$^{4}$요인배치법에 의해 실시되었으며 16명의 피실험자와 Magnitude Estimation방법을 이용하여 파악된 각 감성이 주관적으로 평가되었다. 분산분석 결과, 음성지연은 모든 주요 감성들에 유의한 영향을 미쳤으며, 화상프레임 수는 거리감과 안정성을 제외한 모든 사용자 감성에 주인자로 작용하였다. 또한 요인분석을 실시한 결과 동적인 요인과 정적인 요인으로 전체 감성을 구분지을 수 있었으며 속도감과 깨끗함이 각각을 대표하는 감성으로 나타났다. 주관적이고 복합적인 통신 사용자의 여러 감성을 단일 품질 평가지수로 나타내어 통신소비자의 시스템 선호도 평가에 사용할 수 있는 방법이 제안되었다.

• Korean Journal of Child Studies
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• v.13 no.2
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• pp.65-81
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• 1992

The purpose of this study was to investigate children's conceptions about gender and the relation between gender conceptions and preference for gender related tasks. 130 children were interviewed about gender and gender related tasks. Data were analyzed with the component model of gender schema. Results indicated that children's gender schema in the attitudes domain was significantly different with age in all components but not different with sex. The gender schema in the knowledge domain was significantly different with age in within component and between component links, and with sex in the gender label-component and within component links. The difference between the gender inhibitory score and gender facilitative score was significantly different with age, sex, and children's gender schema. The findings that gender schema influenced the children's preferences for gender related tasks suggests a theoretical rationale of gender schema theory.