• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.6B
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• pp.695-701
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• 2006

A toluene-degrading bacterial strain was isolated from a mixed culture that was maintained using toluene as a sole carbon and energy source. The isolated bacterium was classified as Pseudomonas sp. TBD4 based on the close relationship to bacteria belonging to this genus. A bottle study to determine biodegradation rates of individual aromatic compounds showed that the biodegradation was faster in the order of toluene, benzene, styrene, and p-xylene. However, when various mixtures were subjected to TDB4, styrene was degraded at the highest rate, indicating that both toluene and p-xylene could stimulate the degradation of other substrates whereas styrene played as an inhibitor. In addition, the mixed culture and TDB4 were inoculated to the bioactive foam reactor (BFR), and the reactor performance and the corresponding change of microbial community were monitored using the fluorescent in situ hybridization (FISH) method. When an inlet concentration of the VOC mixture increased to greater than 250 ppm, the overall removal efficiency dropped significantly. The FISH measurement demonstrated that the ratio of TDB4 to the total bacteria also decreased to less than 20% along with the decline in removal efficiency in the BFR. As a result, the periodic addition of the pre-grown TDB4 might have been beneficial to achieve a stable performance in the BFR operated over an extended period.

• Journal of Korea Entertainment Industry Association
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• v.13 no.2
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• pp.145-154
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• 2019

The purpose of this study is to investigate the performance, learning motivation and satisfaction of the students who take the university 's Lifelong Education Program. The research method was interviewed. The results are as follows. In terms of operations; First, the awareness of the kindness of employees of the college lifelong education institute needs to be strengthened at the beginning of the school year. Second, in the operation of the College Lifelong Education Center, the support such as the parking fee should be extended to the students. Third, lifelong education facilities should be supplemented. In terms of participation motivation; First, it can be seen that there are the most learners who want to do complementary learning. Most of them are people who look back on their lives and prepare for their future directions. Second, as the life span of human beings became longer, the economic preparation for life became necessary. Thus, all learning tends to be perceived as a preparation for economic income. Third, most people who participate in lifelong education are very interested in health. Therefore, it is necessary to increase the motivation for participation by expanding health related programs. In terms of satisfaction; First, it depends on the purpose of the individual. Satisfaction was high for those who aimed at hobbies and relationships, and satisfaction for those who aimed for economic activities was low. Second, it is also necessary to consider the instructor 's instructional process. In other words, lifelong learners tend to be adults, so little complaints are not revealed. Therefore, I would like to ask the lecturers to advance the education for the class. The implications for the improvement direction of the lifelong education center are as follows; First, we need to drastically reduce the number of programs overlapping with other universities and conduct research to develop new programs. In order to do this, it is necessary to continuously carry out a survey of demanders' needs. Second, it is necessary to find the appropriate place for program operation considering the movement distance of learners. It should be avoided that the program should be operated with the existing university facilities. Third, universities' lifelong education should go to education that includes college students.

• The Journal of the Convergence on Culture Technology
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• v.10 no.5
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• pp.593-600
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• 2024

This study aimed to investigate the extent to which media advertisements conducted by vocational colleges (such as SNS, banners, university information boards in high schools, terminal advertisements, local daily newspaper advertisements, and elevator video advertisements) influence the formation of a positive image of the college among incoming students. To this end, a total of 430 freshmen at K Vocational College in Jeonbuk were asked about the frequency of their exposure to the college's media advertisements for each type of media. Additionally, they were asked about the impact these advertisements had on forming a positive image of the college, and the results were analyzed accordingly. The frequency of exposure to the advertisements was measured to verify the exposure effect of the advertisements themselves. To determine the impact of the frequency of exposure to each type of media on the formation of a positive image, correlation analysis and regression analysis were conducted. The key findings are as follows: First, while there were differences in the frequently encountered media among different age groups, banners and SNS advertisements were the most frequently encountered when considering all age groups collectively. Second, regarding the impact of the frequency of exposure to each type of media on the formation of a positive image of the college, elevator advertisements had the most significant effect, followed by banner advertisements. The purpose of this study is to aid in the formulation of the college's promotional strategies, with the expectation that the college will achieve better results through more efficient advertising.

• Journal of Digital Contents Society
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• v.12 no.3
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• pp.383-390
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• 2011

The purpose of this study was to examine major motivations for using SNSs and the effect of them on SNS participation. In order to address the research questions, 253 undergraduate and graduate students participated. Results of the study were summarized as follows. First, Cyworld was mainly used followed by Facebook and Twitter. Most of the respondents had access to SNSs via smart devices. The average frequency of SNS use was 1-3 times a day and they used them less than 30 minutes a time. The reasons why they started to use SNSs were mainly to follow current trends, maintain friendship, and accept acquaintances recommendations. Second, the result of component analysis derived four primarily underlying dimensions related to SNS use; self-satisfaction, social interaction, recreation, and information seeking. Third, both self-satisfaction and social interaction motivation had significant correlation with SNS participation. The results of multiple regression analysis showed that self motivation was more influential on active participation than social interaction and information seeking motivation.

• Journal of Korean Dental Hygiene Science
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• v.6 no.2
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• pp.161-172
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• 2023

Background: The purpose of this study is to assess the degree of self-awareness, recognition of others, and adaptation to college life of dental hygiene students, and to identify the factors affecting college life adjustment. Methods: The effect size was calculated using the G*power 3.1.9.4 program, based on the data of 191 people who agreed to participate in the questionnaire. Independent samples t-test, one way ANOVA, Post HOC Scheffe, correlation analysis, and multiple regression analysis were conducted to explore the difference and correlation between self-awareness, perception of others, and college life adjustment according to general characteristics. Results: A significant positive correlation was found in self-awareness (r=.301). The highest positive correlations were with social adjustment in both private (r=.340) and public self-awareness (r=.331) (p<0.01). Recognition of others (r=-.051) showed a negative correlation with college life adjustment, though it was not statistically significant. As factors for adapting to college life, private self-awareness (β=.232) and public self-awareness (β=.254) had a positive (+) effect, and internal self-awareness (β=-.205) was found to have a negative (-) effect (p<0.01) Conclusion: The self-awareness and recognition of others among dental hygiene students influence their smooth adjustment to college life. Improvement measures are recommended to enhance adaptability to college life and develop core competencies related to their major

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.75-82
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• 2020

This study was attempted to identify differences in depression and psychological emotions according to the degree of self-elasticity of college freshmen in COVID-19. The survey was conducted online from April 6 to 13, 2020, and the results were analyzed using a total of 220 copies of the survey data, excluding insufficient surveys. As a result of the analysis, compared to the case where the self-elasticity is below average, the psychological emotion caused by COVID-19 as well as the depression of new students is statistically significant in all emotions such as anxiety, irritability, helplessness, anger, fear, confusion, and distrust. It was found to be higher. Based on these results, several roles and coping strategies were suggested to help students recover and maintain their psychological stability and mental health.

• The Bulletin of The Korean Astronomical Society
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• v.41 no.1
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• pp.64.1-64.1
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• 2016

YAM (Young Astronomers Meeting, 젊은 천문학자들의 모임)과 We Love Galaxies는 인적/학문적 네트워크가 중요시되는 시대의 흐름에 발맞춰 국내 천문학 전공 대학원생들을 위한 워크샵인 "2016 YAM & We Love Galaxies 공동 워크샵"을 강촌에서 개최하였습니다. 2016년 2월 24일부터 26일까지 2박 3일간 개최된 이번 워크샵에는 총 35명의 대학원생/학부생/박사후연구원이 참가하였고, 전원 포스터 발표를 통해 참여 학생 모두가 자신의 연구주제를 자유롭게 소개하고 교류할 수 있도록 하였습니다. 뿐만 아니라 대학원 생활 및 연구 활동에 관련된 9개의 주제를 가지고 조별 토론을 진행하였습니다. 본 발표에서는 "2016 YAM & We Love Galaxies 공동 워크샵" 의 성과와 학생들로부터 받은 피드백을 소개하고 대학원생 워크샵이 나아가야 할 방향에 대해 제시하고자 합니다.

• The Journal of the Convergence on Culture Technology
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• v.7 no.1
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• pp.545-550
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• 2021

In this paper, a university curriculum of Automation Robotics Process(RPA) among several goals for digital transformation of companies was developed. In the process of the development of ICT technology and the 4th industrial revolution, the existing analog information has changed through the stages of digitization, digitalization, and digital transformation. Recently, digital transformation has been cited as an essential survival strategy following a disruptive revolution that changes the paradigm of existing industrial systems and business. It is defined as a continuous process by which a company adapts to or promotes disruptive changes in customers and markets by using digital capabilities to create new business models, products and services. To this end, process automation in companies or organizations is an important factor. Accordingly, the need for a curriculum of robotics processes automation in universities has been raised according to these changes, and the related education contents, which have been centered on companies, have been redesigned to introduce the curriculum for universities. Education contents are composed to help students to attain certificates of essential or advanced of AA.

• The Journal of the Convergence on Culture Technology
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• v.8 no.1
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• pp.253-260
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• 2022

The purpose of this study was to identify the effects of human relations and communication education on nursing students. The participants were 82, 1 grad of students of U university in G city. The data were collected from September 3 to December 6, 2019, and analyzed using the SPSS/WIN 21.0 program with descriptive statistics, Shapiro-Wilk, Paired t-test. There were statistically significant differences in the subject's communication skill(t=-2.87, p=.005), communicative competence self-appraisal(t=-3.80, p=<.001) before and after human relations and communication education, but there was no statistically significant difference between interpersonal communication(t=-0.09, p=.931) and human relationship(t=-0.83, p=.409). Communication skills and skills are important nursing areas for nursing students as well as practical nurses, so continuous communication education is required. Therefore, it is necessary to develop a step-by-step program for improving communication skills of nursing students, apply continuous and repetitive education in connection from the lower grades to the upper grades, and follow-up research to verify the effect.

• The Journal of the Convergence on Culture Technology
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• v.8 no.6
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• pp.543-551
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• 2022

The purpose of this study was to investigate the mediating effect of academic self-efficacy in the process that nursing students' task value affects class participation. The subjects of this study were 161 second-year students of the Department of Nursing at K University located in G city, and the data collection period was from October 5 to October 14, 2020. The mediating effect of academic self-efficacy in the relationship between task value and class participation was analyzed using Baron and Kenny's 3-step mediating effect verification procedure using simple and multiple regression analysis and the statistical significance of mediating effects was verified by the Sobel test. As a result of this study, task value and academic self-efficacy were major factors influencing class participation, and academic self-efficacy was found to be a significant partial mediating variable in the relationship between task value and class participation. These factors explained 55% of class participation. In order to increase learners' class participation, an integrated approach that can improve task value and academic self-efficacy is needed.