• Journal of Information Display
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• 제13권3호
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• pp.113-118
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• 2012

Metal oxide semiconductors were considered promising materials as backplanes of future displays. Moreover, the adoption of carrier-suppressing metal into indium-zinc oxide (IZO) has become one of the most important themes in the metal oxide research field. In this paper, efforts to realize and optimize IZO with diverse types of carrier suppressors are summarized. Properties such as the band gap of metal in the oxidized form and its electronegativity were examined to confirm their relationship with the metal's carrier-suppressing ability. It was concluded that those two properties could be used as indicators of the carrier-suppressing ability of a material. As predicted by the properties, the alkali earth metals and early transition metals used in the research effectively suppressed the carrier and optimized the electrical properties of the metal oxide semiconductors. With the carrier-suppressing metals, IZO-based thin-film transistors with high (above $1cm^2/V{\cdot}s$) mobility, a lower than 0.6V/dec sub-threshold gate swing, and an over $3{\times}10^6$ on-to-off current ratio could be achieved.

• The Journal of Asian Finance, Economics and Business
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• 제7권5호
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• pp.205-216
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• 2020

This study seeks to empirically analyze the effects of core self-evaluation and adaptive selling behavior on sales performance for female salespersons engaged in door-to-door sales through the face-to-face channel in the wellness industry. This study seeks to examine the importance of adaptive selling, through, salespeople derive appropriate strategies in response to market changes. For female salespeople who use face-to-face channels, this study empirically investigated the relationship between core self-evaluation and adaptive selling, and effects on sales performance. A 31-item survey was constructed, based on prior research. We selected six door-to-door sales companies in South Korea and conducted one-to-one interviews with female salespeople in the Seoul metropolitan area and analyzed 208 pieces of significant data. Results demonstrated that among the core self-evaluation factors for female salespeople, self-esteem, self-efficacy, and neuroticism had an effect on adaptive selling factors, while locus of control did not. These factors were found to affect sales performance through the mediating role of adaptive selling. Improvements in the adaptive selling capabilities of female salespeople in charge of face-to-face channels positively affected sales performance. Management efforts are required to enhance self-esteem, self-efficacy, or neuroticism. These results suggest that companies should support enhancing individual adaptive selling capabilities of their salespeople.

• 공학교육연구
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• 제19권4호
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• pp.35-46
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• 2016

With the emphasis on core competencies, the University of Seoul has exerted efforts to reflect the importance of core competencies in university curricula. The main assessment tool used in Korea is the Korea Collegiate Essential Skills Assessment (K-CESA), developed by the Korea Research Institute for Vocational Education and Training (KRIVET). This study examined whether core competencies measured using K-CESA are valid as a tool for assessing educational achievements among college students, and analyzed the correlation between K-CESA scores and course grades. The analysis was performed on approximately 204 engineering students at the University of Seoul. According to the correlation analysis between core competencies and courses, MSC courses were shown to be related to the resource and through information use competency and higher order thinking competency. Through the Analysis of Variance, students in the accreditation programs and students living in urban area showed higher competency scores. In the multiple regression, it was shown that Accreditation and MSC courses grades were the important variables to predict the competency of the students. Based on these findings, we confirmed that the K-CESA tool has a certain level of correlation with academic performance and that it functions as one of several ways to evaluate the program outcomes of engineering education accreditation.

• 보건행정학회지
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• 제6권1호
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• pp.29-58
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• 1996

This study was conducted to identify the factors that affect the output of health conters. An analystical model employed in this study was developed by modifying 'input-output model' and 'organizational behavior model'. Data were collected form two source; the 1995 report of thealth center which was submitted to the Ministry of Health and Welfare and a mail survey questionary of officers at health center, including 66 directors and 1,768 staffs of the health centers in southern region. The major findings are as follows: That analysis has identified the factors associated with dependent variables: medical services provided by the health center and health program performance(HPP). The number of primary medical facilities was negatively associated with health center performance while the number of staffs, job satisfaction, and professional background of health center directors were positively associated. These independent variables accounted for 40.1% of the variance of dependent variables. The variance of HPP was significantly explained by the number of health subcenter and primary health post, priority level of public health program by hief executive officers(CEOs) and legislator. A significant relationship was found between leadership types of health center directors and the performance of maternal and child health program. Considering these results, the authors suggested that the role in medical care service of health center in the should be rearranged at local level because medical care service of the health center is competing with primary medical facilities in the same region. It is also suggested that educational efforts be made to improve leadership of the health center directors and concern with public health program by the CEOs and legislators of local governments.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제5권1호
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• pp.45-58
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• 2001

This study sheds light on the importance of developing creativity in mathematics class by examining the theoretical base of creativity and its relationship to mathematics. The study also reviewed the realities of developing creativity in mathematics courses, and it observed and analyzed the processes in which students and teachers solve the mathematics problems. By doing so, the study examined creative abilities of both students and teachers and suggests what teachers can do to tap the potential of the student. The subjects of the study are two groups of students and one group of mathematics teachers. These groups were required to solve a particular problems. The grading was made based on the mathematical creativity factors. There were marked differences in the ways of the solutions between of the student groups and the teacher group. It was clear that the teachers\\` thinking was limited to routine approaches in solving the given problems. In particular, there was a serious gap in the area of originality. As can be seen from the problem analysis by groups, there was a meaningful difference between the creativity factors of students and those of teachers. This study presented research findings obtained from students who were guided to freely express their creativity under encouragement and concern of their teachers. Thus, teachers should make an effort to break from their routine thinking processes and fixed ideas. In addition, teaching methods and contents should emphasize on development of creativity. Such efforts will surely lead to an outcome that is beneficial to students.

• 한국산업정보학회논문지
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• 제11권1호
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• pp.58-68
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• 2006

본 연구의 목적은 제조물책임(PL)활동과 경영성과간의 관계를 실증적으로 분석하는 것이다. 제조물책임활동을 5가지 영역으로 분류하였고, 경영성과는 제조물책임과 관련한 3개 분야로 측정하였다. 실증분석을 위해 135개 기업 표본을 사용하였으며, 연구 결과 제조 PL활동은 3개 경영성과에 유의한 영향을 미치는 것으로 밝혀졌다. 설계, 표시, 판매 PL활동들은 경영성과에 부분적으로 영향을 미친 것으로 파악되었다. 이러한 결과는 제품안전 관련 노력들이 제품의 설계에서부터 판매에 이르기까지의 전반적인 프로세스와 유기적으로 결합됨으로써 경영성과를 극대화할 수 있다는 시사점을 제시한다.

• 한국식품영양학회지
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• 제26권3호
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• pp.391-397
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• 2013

This study investigated the knowledge, attitude, and behavior of 280 University students towards nutrition labels. The purpose of the study was to examine knowledge, attitudes, and behaviors of university students regarding nutrition labeling, and whether body mass index (BMI) with nutrition labeling was associated with knowledge, attitudes, and behaviors. Descriptive statistics analyzed knowledge, attitudes, and behaviors of university students regarding food labeling. The ANOVA and ${\chi}^2$ analysis was evaluated and assessed for its relationship with BMI. Pearson's correlation coefficient analysis examined relationships between knowledge, attitudes, and behaviors. More than 90 percent of answers relating to 11 nutritional knowledge questions were correct. Only 30% of participants answered correctly regarding questions about plan source oil and cholesterol content. Attitudes and behaviors of nutrition labels were significantly higher among participants who were obese (p<0.001). Knowledge score was positively correlated with general label usage behavior (r=.169, p<0.01), and item buying behavior (r=0.142, p<0.05). Attitude also was positively correlated with behavior (p<0.01). Nutrition labeling education efforts are needed to provide university students with a nutritional education program and information on how to read nutritional labels and apply this information to their lives. University students need to understand their need for numerous nutrients instead of merely focusing on the fat and calories of foods.

• 대한안전경영과학회지
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• 제22권3호
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• pp.31-41
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• 2020

The purpose of this study was to identify the relationship between bullying, nursing work environment, reality shock and factors of influence on turnover intension. Data were collected from 381 nurses who were under the charge nurse at a hospital with more than 600 beds in Seoul. The collected data were analyzed using the SPSS24.0 program. The mean score for turnover intension was 3.61 ± 0.89. The intension of turnover was correlated with bullying in the workplace (r=0.197, ⍴=.001), the nursing work environment (r=-.409, p=.001), and reality shock (r=.572, p=.001). Variables affecting turnover intension were the work department(β=-0.018, ⍴=.049), working environment(β=-0.424, ⍴<.000), and reality shock(β=0.654, ⍴<.000). The total amount of explanation for turnover intension was 37.3%. The degree of turnover intension of nurses was affected by work in general wards, the experience of workplace bullying and the nursing work environment. To reduce turnover intension, nursing work needs to be analyzed and efforts are needed to establish an effective communication system.

• 농촌계획
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• 제26권1호
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• pp.13-22
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• 2020

This study analyzed the relationship between the sense of community, organizational commitment, and business performance among farmers participating in the agricultural products processing center. As a result, the farmer's sense of community at the agricultural products processing center had a positive effect on organizational commitment, and the farmer's sense of community had a positive effect on business performance. In this regard, efforts should be made to systematically manage and sustain the future of formal, formal and informal activities of the agricultural products processing center. In addition, in order for the community formed at the agricultural products processing center to continue to grow, it is necessary to take the approach of improving the competence of personnel, organizing work, developing professional programs, and forming related networks. In addition, the organization formed through the agricultural products processing center should be grown as a farmer's organization of processing base so that it can be linked with the activation policy such as food plan and local food.

• 한국도로학회논문집
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• 제19권6호
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• pp.175-182
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• 2017

PURPOSES : Road sectors contribute approximately 16 % of total GHG emission rates in South Korea. Engineers and experts expend significant efforts to identify countermeasures for the reduction of carbon emission. This study aims to determine how total carbon emission rates change depending on whether or not there is speed limit enforcement. METHODS : In this study, Lamm's travel speed profile theory is first adopted to select the hazard road, which sections are designated as speed limit enforcement. Second, Motor Vehicle Emission Simulator (MOVES) was used to simulate the carbon emission on the road. RESULTS : The total carbon emission rate under speed limit enforcement was 10,773 g higher than the condition without speed limit enforcement in the designated road. This might affect acceleration, which can lead to increased emissions. CONCLUSIONS : There would be no researches about proving the relationship how speed limit enforcement has an effect on carbon emission. The result of our study can provide valuable guidelines regarding road safety and eco-friendly roads.