• International Journal of Highway Engineering
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• v.16 no.3
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• pp.75-84
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• 2014

PURPOSES : Traffic congestions which occur in the intersections of arterials lead to mobility and environment problem, and then traffic agencies and engineers have been struggling for mitigating congestions with greenhouse gas emissions. As an alternative of solving theses problems, this study is to introduce a low-cost and high-effectiveness countermeasure as unconventional intersections which are successfully in operation in U.S.. The main feature of unconventional intersections is to reroute turning movement on an approach to other approach, which consequently more green time is available for the progression of through traffic. Due to improved progression, this unique geometric design contributes to reduce delays with greenhouse gas emission and provides a viable alternative to interchanges. This study is to evaluate the potential operation and environment benefits of unconventional intersections. METHODS : This study used the VISSIM model with Synchro and EnViVer. Synchro is to optimize signal phases and EnViVer model to estimate the amount of greenhouse gas emissions by each condition. RESULTS : The result shows that unconventional intersections lead to increase the capacity and to reduce greenhouse gas emissions, compared to existing intersections. CONCLUSIONS : Unconventional intersections have the ability to positively impact operations and environments as a low-cost and high-effectiveness countermeasure.

• The Journal of Natural Sciences
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• v.13 no.1
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• pp.113-128
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• 2003

The purpose of his study was to investigate the effectiveness on clothing advertisement of three types of model, perception of model attributes by the clothing consumers, and difference in advertisement effectiveness according to perception of model attributes. Three types of advertisements for easy casual brand were selected, which are using celebrity, expert and general consumer models. The final analysis included 304 persons, who ranged from 16 to 25 in age. The statistics used analysis include ANOVA, Duncan's multiple range test, factor analysis and regression by the SPSS program. The result were as follow:1. The celebrity advertisement was the most effective type on all kinds of attitude changes (cognitive, emotional, and behavioral attitude changes) of consumers.2. The celebrity model received high scores on attractiveness and truthfulness; and the general consumer model received high scores on truthfulness and similarity.3. The amount of consumers attitude changes was different according to the perceptions of model attributes as well as the types of model.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.12 no.1
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• pp.43-51
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• 2013

This is a thesis about the experiment of comparison characteristic of power and exhaust gas in the same condition between diesel engine that is equipped turbocharger different from response power to increase effectiveness of the engine which is recently used in a lot of industry which requires high power. Resulting of the experiment with natural aspiration diesel engine and turbocharger diesel engine, difference in low speed is not significant, but in high speed, effectiveness of turbocharger diesel engine is much higher than the other one. In other hand, in exhaust gas experiment, turbocharger model exhausts more $NO_X$ and $O_2$, but it doesn't significantly affect the result when it comes with decreasing of $CO_2$ and effectiveness of increased power characteristic. As a result, the turbocharger diesel engine is economically effective comparing with the natural aspiration diesel engine.

• Journal of Korea Game Society
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• v.14 no.5
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• pp.69-78
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• 2014

This paper analyzed motivations of early adaptor students in using G-Learning. Also, it has tested academic effectiveness in G-Learning process. As a result, it has found that early adaptor students prefer G-Learning for social relationship, following the trend and showing off to their colleagues. Furthermore, the students showed high academic motivation, which made them taking high performance in their subject.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.11 no.6
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• pp.100-106
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• 2012

This is a thesis about the experiment of comparison characteristic of power and exhaust gas in the same condition between diesel engine that is equipped turbocharger to increase effectiveness of the engine which is recently used in a lot of industry which requires high power. Resulting of the experiment with natural aspiration diesel engine and turbocharger diesel engine, difference in low speed is not significant, but in high speed, effectiveness of turbocharger diesel engine is much higher than the other one. In other hand, in exhaust gas experiment, turbocharger model exhausts more NOX and $O_2$, but it doesn't significantly affect the result when it comes with decreasing of $CO_2$ and effectiveness of increased power characteristic. As a result, the turbocharger diesel engine is economically effective comparing with the natural aspiration diesel engine.

• Journal of the Korean Society of School Health
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• v.22 no.1
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• pp.129-143
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• 2009

An evaluation in school education systems should identify what students achieve and what they do not. Since 2010, if the health education curriculum is provided as a selective course in middle and high school settings, the national health education standards are required because these affect on students' applications of a higher stage of education. It would be better that each school follows their autonomy to evaluate each student's achievement on the health education. In addition, the national health education standards should be set to assess the effectiveness of seven categories in health education. It is hard to achieve good results through 17 hours of the health education per a semester. Therefore, the health education would be better to provide more than 50 hours per a semester, and the 3th graders instead of 5th graders are suitable for taking the health education because they are more flexible to change their lifestyle toward healthier life. There are two categories in the health education, such as "Mental Health" and "Society and Health" which are expanded from originally seven categories of the health education. Moreover, professional training programs for school nurses should be provided because these two categories are relatively a new domain for them. Finally, all elementary middle and high schools have a school nurse to decrease inequal opportunities of the health education between urban and rural area. When these suggestions are all set in school systems, our students' health behaviors will be improved as well as the effectiveness of the health education.

• Journal of Sport and Applied Science
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• v.5 no.2
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• pp.17-21
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• 2021

Purpose: This study aims to analyze the management environment Provincial and Municipal Professional Soccer Teams based on financial statements at a time when strengthening the financial soundness of domestic professional soccer teams is emphasized. Research design, data, and methodology: This study was sampled using convenience sampling and a total of 607 questionnaires were used. In this study, questionnaires were used as a survey tool, consisting of eight questions in a total of four areas, measuring demographic characteristics, shoe design, shoe functionality, shoe price, and promotion. Results: First, the importance of outdoor brand shoe selection attributes was high in cost-effectiveness, discount, and promotional models, while the satisfaction level was high in shoe size, content, and Model. Second, IPA analysis revealed shoe sizes, promotional models, and discount factors as maintenance and management continuation areas. Content factors have emerged as a competency-focused area. A sense of cushioning and wearing has emerged as an area of further improvement. As a status quo area, shoe laces and cost-effectiveness factors appeared. Conclusions: First, consumers considered the cost-effectiveness of choosing shoes, followed by discounts, and efforts are needed to diversify promotional content to maximize promotion for shoe sales. 3. Domestic outdoor brands are not yet satisfied with consumers.

• Safety and Health at Work
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• v.13 no.2
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• pp.180-186
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• 2022

Background: In occupational studies, it is a known situation that technical and organizational attempts are used to prevent occupational accidents. Especially in the mining sector, if these attempts cannot prevent occupational accidents, personal protective equipment (PPE) becomes a necessity. Thus, in this study, the main objective is to examine the effects of the variables on the use of PPE and identify important factors. Methods: A questionnaire was implemented and structural equation modeling was conducted to ascertain the significant factors affecting the PPE use of mining employees. The model includes the factors that ergonomics, the efficiency of PPE and employee training, and PPE usage habit. Results: The results indicate that ergonomics and employee training have no significant effect (p > 0.05) on the use of PPE. The efficiency of PPE has a statistically meaningful effect (p < 0.05) on the use of PPE. Various variables have been evaluated in previous studies. However, none of them examined the variables simultaneously. Conclusion: The developed model in the study enables to better focus on ergonomics and employee training in the PPE usage. The effectiveness of a PPE makes its use unavoidable. Emphasizing PPE effectiveness in OHS training and even showing them in practice will increase employees' PPE usage. The fact that a PPE with high effectiveness is also ergonomic means that it will be used at high rates by the employee.

• Proceedings of the Acoustical Society of Korea Conference
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• 1993.06a
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• pp.206-209
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• 1993

The main purpose of this paper is to verify the effectiveness of a high resolution direction finding method, so called the‘averaged MUSIC’. This method uses a new sample array covariance matrix that consists of diagonal components obtained by taking averages of the diagonal component values of the sample covariance matrix for the MUSIC. The paper shows that the proposed method performs higher resolved direction-of-arrival estimation and better resolution probability than the MUSIC in such cases as low signal-to-noise ratio, when the number of sensors used is finite, based on the statistical analysis.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.1263-1264
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• 2010