• Journal of the Korea Society of Computer and Information
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• v.29 no.1
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• pp.231-239
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• 2024

This study was conducted with the purpose of understanding the factors that influence smartphone addiction on adolescents' school adaptation. The subjects were examined with a focus on students currently attending middle schools in Gwangju Metropolitan City, and data analysis was conducted using SPSS 26.0 to examine the factors influencing school adaptation, focusing on the inducements and forced inducements that lead teenagers to fall into smartphone addiction. As a result of the analysis, it was found that anonymity and desire satisfaction among the attractive factors leading to smartphone addiction have a negative impact on school adaptation, and the forcing factors that cause adolescents to become overly dependent on smartphones include online games, online chatting, online addiction, and social interaction. It was analyzed that both action and information search had a negative impact on adolescents' school adaptation. Based on the above results, policy recommendations were presented by considering the points pointed out by the two discovered factors.

• Environmental and Resource Economics Review
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• v.4 no.2
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• pp.197-221
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• 1995

본 논문에서는 산업연관 분석모형을 이용하여 1980년대 수출산업에서의 유가변화의 산업별 파급효과를 분석하고, 1990년대 유가 파급효과를 추정하여 보았으며, 1980년대 산업별 물가상승 요인을 계측하여 1970년대 물가상승요인과 비교분석하여 보았다. 1980년대 상반기의 유가 파급효과가 큰 산업은 석유제품과 에너지 다소비 품종인 화학, 비금속 광물, 전기가스수도, 철강, 금속 등으로 나타났으며 대부분의 산업은 유가인상율의 5% 내외의 인상효과를 나타내었다. 유가 인하기였던 1980년대 하반기에도 인하효과는 산업별로 상반기와 비교할 때 큰 차이는 없었으나, 기계, 전기, 전자통신, 자동차 등 주요 수출산업의 가격인하 효과는 그다지 크지 않은 것으로 분석되었다. 저물가 시대였던 1980년대의 주요 물가변화 요인으로는 임금 등 부가가치 및 원유가격의 변화로서 1970년대와 큰 차이가 없었으나, 중간재 수입가격, 수입계수 및 수업률 변화의 물가변화 기여도는 아주 작아서 1970년대와는 다른 양상을 보였다. 한편 1990년대의 유가파급효과 추정을 위한 모의실험 결과를 보면, 1980년대와 마찬가지로 석유관련 제품의 가격인상 효과가 두드러지겠지만, 1970년대와 1980년대에 비해서 유가파급효과는 상대적으로 낮을 것으로 추정되어 수출산업의 가격경쟁력은 임금, 기타 원자재 가격 등 여타 물가인상 요인에 더 영향을 받을 것으로 예상된다.

• Journal of Digital Convergence
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• v.12 no.12
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• pp.217-225
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• 2014

The objective of this study is to propose the implications using theory of reasoned action(TRA) on u-Tour system. This research model through TRA is consisted as three constructs: user-friendliness(cognitive), perceived usefulness(cognitive) and purchase intention(affective). This study analyzes with a total of 153 respondents and used PLS-SEM method considering the small number of samples. Also, with the analysis, WarpPLS software is used in order to ferret out non-linear relationship between the constructs of research model. As a result of analysis, this research model shows statistical level significantly on proposed hypotheses and the applicability of TRA model in u-Tour system. Furthermore, additional analysis presents the possibility of non-linear relationship on each path between the constructs of research model showing J-shape. Also, the result showes the fact that the relationship had partly negative (-) effect on dependent factor. Additional analysis proposes that income variable as base of purchase intention has a moderating effect on all paths of research model.

• 한국사회정책
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• v.19 no.2
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• pp.69-97
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• 2012

This study has sought to analyze factors affecting work and work preference of older adults at national and individual level. A few theoretical hypotheses such as economic need versus job opportunity (or employability), attitude toward paid work, pull effect versus push effect were tested for citizens in eighteen OECD countries with International Social Survey dataset(2005) using multi-level analysis. Main findings are as follows. First, most older adults wanted to work regardless of the socio-economic status, which implies that non-work of older adults would be due to involuntary constraint rather than voluntary choice. Second, there existed class inequality in that the higher class tended to involve paid work more than the lower class did among 55-64 age group. Third, the push factor such as part-time employment ratio, rather than the generosity of social security, explained the work and retirement patterns better. In conclusion, at least from the comparative perspective, the main problem of older adults' work seems to be of labour demand rather than of labour supply, to be of labour market structure and work opportunity rather than of the pull factor.

• The Journal of the Convergence on Culture Technology
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• v.5 no.1
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• pp.327-332
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• 2019

The purpose of this study was to investigate the effect of 4 week folic acid and vitamin B12 intake on hematological, immune and aerobic anaerobic exercise performance in female basketball players. The subjects were divided into nine groups: ingestion and control group. The results were as follows; 4 weeks of folic acid and vitamin B12 before and after ingestion. There was a significant effect on intake of aerobic and anaerobic capacity, and blood factor analysis showed a significant effect on intake of RBC and Hct. In conclusion, considering the results of the above study, it is expected that folic acid and vitamin B12 intake for improvement of anaerobic and anaerobic exercise ability of female basketball player can improve the performance.

• Journal of the Korea Convergence Society
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• v.13 no.3
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• pp.133-146
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• 2022

Despite the fact that Internet users around the world watch YouTube every day, very few users accurately recognize the recommendation algorithm for search results, and Google and YouTube are not disclosing it. Researchers tried to explore the undisclosed algorithm of YouTube in a reverse engineering design method, find key factors, and check the logical structure in which media platform operators recommend keyword search results and arrange them on the screen. Therefore, researchers studied the basic content priority factors through several months of discussion and data collection, and tried to reverse engineer the influencing factors based on the recommendation results according to male and female gender among the collected keyword search results. Although researchers' design only analyzed some of the almost infinite level of data uploaded and viewed for more than hundreds of hours every hour, these exploratory attempts will study media platform algorithms in the future, understand the intentions of operators, and protect users. thought it could be done.

• The Journal of the Korea Contents Association
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• v.20 no.2
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• pp.150-161
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• 2020

Generation Z(Gen Z), which is referred to people in their late teens to early 20s, becomes one of new major consumer groups in the society. More than 80 percent Gen Z use YouTube content as a main information channel. In this study, we investigate what kind of factors make Gen Z immersed when watching YouTube content. In the background study, we examined immersion and set the cognitive conditions of immersion as reality, fascination, control, and driving as a framework for analysis of case study. In the case study, we analyzed the most popular YouTube channels of each category among the Gen Z with the established framework and then identified 3 main factors: reality, 5 senses, and unpretentiousness and 8 characteristics of them. By conducting survey with Gen Z, we wanted to verify the validity of the characteristics and find out the difference among categories. Subjects answered on a five-point scale how the characteristics of each immersion factor corresponded to their favorite channels. As a result, seven characteristics: 1) familiarity of background, 2) reality of acting, 3)familiarity of material, 4)YouTubers' appearance and 5) voice, 6)multi-sensory, and 7)YouTuber's ability to resemble viewers influenced more than 50% of users' immersion. Although there was no significant difference among categories, the familiarity of the material and the five senses stimulus (YouTube's appearance, voice, audiovisual and surrogate taste) were the most important factors in the entertainment category.

• Journal of Convergence for Information Technology
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• v.10 no.12
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• pp.175-182
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• 2020

This thesis is to investigate the relationship between college students' beauty YouTube viewing satisfaction and the development impact of K-beauty. University students' beauty YouTube viewing satisfaction showed more than average satisfaction in terms of reviews, makeup techniques, makeup trends, agency empathy, and entertainment motives. In order to study the relationship between beauty YouTube viewing satisfaction and K-beauty, as a result of factor analysis of the K-beauty questionnaire, it was divided into factors affecting development and development of other industries. University students' beauty YouTube viewing satisfaction was found to have a positive (+) effect on the factors affecting K-beauty development, and no relationship with other K-beauty industries. Based on these research results, we expect to use reference materials for the development of K-beauty development plans using media contents along with the development of beauty YouTube contents, and we plan to continue a more extensive research.

• 한국벤처창업학회:학술대회논문집
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• 2016.04a
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• pp.228-231
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• 2016

얼마 전까지만 해도 창업유경험자들이 다양한 사유로 인해 창업을 접고 다시 안정적인 보수를 위해 취업을 하려고 해도 창업을 했었다는 이유가 입사의 걸림돌이라는 인식이 강하였는데 최근의 창업 바람은 정부 3.0시대를 맞이하면서 창업은 필수불가결의 요소로서 사회 분위기가 형성되고 있다. 이러한 영향으로 기업에서도 창업유경험자에 대한 인식과 사회적 분위기가 달라지고 있음에 착안하여 본 연구를 실시하였다. 최근의 인식 변화와 함께 어떠한 점이 달라지고 있는지에 대한 요인을 밝혀 기업이 창업유경험자를 채용할 시에 고려해야할 사항들과 창업유경험자들도 기업마다의 문화를 재인식하여 건강한 기업문화와 창업생태계를 육성하는데 있다.

• Tribology and Lubricants
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• v.10 no.2
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• pp.20-29
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• 1994

우수한 기유와 첨가제들이 혼합된 양질의 윤활유라 할지라도 윤활유는 사용중에 차차 변질하여 그 성상이 저하하게 되는데 이와 같은 윤활유의 열화현상은 윤활유 자신이 일으키는 내부변화 즉, 화학변화와 외부적 요인에 의하여 생기는 윤활유의 오염 등에 기인하는 것으로 알려져 있다. 열화현상이 발생되면 폐윤활유는 주기적으로 교체하여야 하는데 소모성 물질이 아닌 윤활유는 국내에서 93년도 기준 년간 약 750,000 k1의 윤활유가 사용되어지고 있다. 윤활유 사용으로부터 발생된 폐윤활유는 첫째, 원유내의 윤활 성분이 10~15%인데 비하여 폐윤활유는 약 85% 이상의 윤활성분이 포함되어 있어 윤활기유의 회수율이 높으며 둘째, 폐윤활유내의 불순물은 윤활성분과는 물리화학적 성질이 달라 쉽게 분리될 수 있으며 셋째, 폐윤활유는 윤활유로서의 부적당한 물질은 이미 열화나 산화에 저거된 상태이므로 재정제가 용이하다는 장점이 있어 폐자원 재활용 측면에서 오래전 부너 관심의 대상이 되어왔다.