• Journal of Korean Society of Transportation
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• v.20 no.4
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• pp.213-222
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• 2002

교통사고가 중요한 사회 문제로 대두되어 정부는 교통안전대책의 실질적인 추진 방안으로 "교통사고 잦은 곳"과 "위험도로" 개선사업을 제시·시행하고 있다. 이에 "교통사고 잦은 곳" 개선사업은 추진현황에 따라 각 년도별 기본 개선계획의 평가 및 경제적 타당성에 대한 효과분석이 이루어지고 있다. "위험도로"'의 경우 모든 사업을 건설교통부 산하 국도유지사무소에서 진행을 하고 있으나, 광범위한 사업으로 인한 업무과중 및 개선사업비 조달 등의 문제로 개선된 현황의 체계적인 효과분석이 이루어지지 못하고 있는 실정이다. 이에 따라 본 연구에서는 "위험도로" 개선사업에 대한 효과분석을 수행하여 보다 비용-효율적인 개선사업이 될 수 있는 기반을 마련하고자 한다. 이를 위해 전체 위험도로 구간 중에서 '광주국도유지사무소' 및 '순천국도유지사무소' 관할 구역 내의 "위험도로"로 선정(1995년)된 도로구간 중 1999년 이전에 도로개선공사가 완료된 후 현재 교통소통이 원활하게 진행되는 18개 도로구간을 연구 대상으로 선택하였다. 선택되어진 18개 구간에 대한 도로개선공사 전후의 교통사고건수 및 교통사고율을 효과척도로 삼고 각 사고에 대한 소요비용을 기준으로 경제성 평가를 실시하였다. 이를 근거로 "위험도로" 개선사업에 대한 타당성조사 및 효과분석을 실시한 결과 "위험도로" 개선사업의 타당성이 입증되었다. 연구 분석결과가 전라도 권역의 사업을 중심으로 진행되어져 전국적인 개선사업에 대한 대표성을 가지고 있다고 볼 수는 없으나, 체계적인 분석을 통한 개선사업의 효과를 구체화 할 수 있는 대안을 제시할 수 있을 것으로 사료된다. 더불어 공사 완료된 도로구간에 대한 상세한 공사비 내역과 다수의 개선방안별 자료가 갖추어지면 위험도로의 사고율과 개선방안별 상관관계를 관련 비용을 중심으로 도출함으로서 비용-효율적인 개선 방안을 제시할 수 있을 것이다. 또한 비용-효율적인 개선 방안을 기반으로 한 각각의 사업 투자우선 순위 결정방안에 관한 지속적 인 연구가 요망된다.

• Informatization Policy
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• v.28 no.1
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• pp.43-63
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• 2021

The purpose of this research is to examine the relationships among data literacy, organizational culture, and data analytics maturity and the moderating effects of organizational culture. Analysis of the relationship between data literacy and data analytics maturity shows that the higher the data literacy competency of employees, the higher the organization's data analytics maturity. In examining the relationship between organizational culture and data analytics maturity, it is found that relationship culture and innovation culture are positively related to data analytics maturity. In addition, relationship culture and hierarchy culture show significant moderating effects. Relationship culture shows a synergistic effect, whereas hierarchy culture has a buffer effect between data literacy and data analytics maturity.

• Journal of the Korean Society of Food Science and Nutrition
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• v.41 no.7
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• pp.1020-1027
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• 2012

The purpose of this study was to investigate the priority of menu management by importance-performance analysis (IPA) of school foodservice menu attributes. Questionnaires were distributed to 448 school dietitians with an official letter, and a total of 292 responses were used for analysis. From the 21 menu attributes, the factors of 'nutrition', 'educational effect', 'capability consideration', 'ease of quality management', 'efficiency', and 'preference of students' were induced from exploratory factor analysis. The levels of importance (p<0.01) and performance (p<0.05) of the 'nutrition' factor were significantly higher with nutrition teachers than school dietitians, while the importance of the 'preference of students' factor showed significantly higher score with school dietitians (p<0.05). As a result of gap analysis for IPA, only the 'efficiency' factor was located in the area where performance was higher than importance, whereas no menu attribute factors were included in the 'concentrate here' area by the usual IPA. Further analysis showed that there should be more effort to improve the performance of an 'educational effect' factor for a school foodservice menu.

• Environmental and Resource Economics Review
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• v.20 no.2
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• pp.229-254
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• 2011

In this paper, we decomposed Greenhouse-Gas emissions of Korea's manufacturing industry using LMDI (Log Mean Divisia Index) method. Changes in $CO_2$ emissions from 1991 to 2007 studied in 5 different factors, industrial production (production effect), industry production mix (structure effect), sectoral energy intensity (intensity effect), sectoral energy mix (energy-mix effect), and $CO_2$ emission factors (emission-factor effect). By results, the structure effect and intensity effect has a role of reducing GHG emissions and The role of structure effect was bigger than intensity effect. The energy mix effect increased GHG emissions and emission-factor effect decreased GHG emissions. By time series analysis, IMF regime affected the GHG emission pattern. the structure effect and intensity effect in that regime was getting worse. After 2000, in the high oil price period, the structure effect and intensity effect is getting better.

• The Korean Journal of Financial Management
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• v.13 no.1
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• pp.221-235
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• 1996

본 연구는 우리나라 주식시장에 있어서도 소외기업효과와 주가효과가 존재하는지 그 여부를 검증하고자 하였다. 이를 위해 1992년부터 1995년까지 4년간을 분석기간으로 하고 한국증권거래소의 521개의 상장종목을 표본으로 사용하여 증권회사의 추천회수를 기준으로 한 소외도와 주가에 따라 포트폴리오를 구성하였다. 다음으로 시장조정모형과 시장모형을 사용하여 각 포트폴리오의 초과수익률을 구한 후 이를 살펴보았다. 그 결과 소외도와 주가에 따라 구성된 각 포트폴리오들의 분석기간동안의 평균초과수익률이 영과 통계적으로 유의하게 다르지 않으며, 포트폴리오들의 평균초과수익률 사이에도 통계적으로 유의한 차이가 없다는 것을 확인하였다. 이러한 본 연구의 분석결과는 소외기업효과와 주가효과의 존재에 관해 강한 의문을 던져주고 있다. 한편 1월효과의 존재를 뒷받침하며, 또한 소외도와 주가 사이에 상당한 관련성이 있음을 시사하는 실증적 증거도 발견되었다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.5
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• pp.188-198
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• 2021

The purpose of this study is to verify the mediating effect from acceptance of the latest 4th Industrial Revolution technologies on the relationships between interest in the latest technologies, resistance to the latest technologies, and anxiety in workers at welfare institutions for the disabled. In order to achieve this goal, data were collected from July to August 2018 from workers at disability welfare centers in P Metropolitan City, and we analyzed data from 187 persons. Multiple regression analysis was applied to test the causal relationships between variables; the step-by-step analysis model of Baron and Kenny (1986) was used to verify mediating effects, and the Sobel test was performed to verify their significance. The analyses verified that the degree of interest in the latest technologies affects the degree of resistance to, and anxiety over, the latest technologies through acceptance of the latest technologies. At the same time, we verified that the degree of interest had a complete mediation effect because it did not directly affect the acceptance. In addition, the Sobel test result showed that the mediating effect was statistically significant. In other words, it was found that the degree of interest in the latest 4th Industrial Revolution technologies from workers at welfare institutions for the disabled increases the possibility of adaptation to future society by lowering resistance and anxiety through acceptance of the latest technologies. Based on these results, a plan to reduce resistance to, and anxiety over, the latest technologies was sought, and related measures to increase interest in the latest technologies and their acceptance are suggested.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.1
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• pp.91-104
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• 2022

The operational design domain (ODD) of autonomous vehicles needs to be expanded on highways and urban roads in light of the substantial commercialization of Level 3 autonomous vehicles. Therefore, this study developed a specific infrastructure autonomous vehicle-based cooperative driving service to ensure the driving safety of autonomous vehicles on city roads. The traffic operation efficiency, safety evaluation, and core evaluation indices for each service were selected and analyzed to study the effect of each service. The result of the analysis confirmed that the traffic operation efficiency and safety of autonomous vehicles were improved through the V2X communication-based autonomous cooperative driving service. On the whole, the significance of this study is in deriving the effect of the autonomous cooperative driving service based on V2X communication on urban roads with interrupting traffic flow.

• The Journal of the Korea Contents Association
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• v.9 no.11
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• pp.363-375
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• 2009

This study is to verify effects of banner advertising by context effect in web contents. For this, it analyzed the effects of banner advertising by association of internet article's contents, emotion, difficulty of article and the level of involvement. According to the result of experimental design, banner advertising effects by context effects of web contents were high in the following cases; in the case when the contents were highly associated with banner advertising; in the case when the positive emotions were formed by the internet article; in the case when the difficultly of article was low; and in the case when consumer's involvement was high. And also, when the contents were highly associated with the advertising, the content effects of web contents were high even in the case when the negative emotions were formed; in the case when the difficulty of article was high; and consumer's involvement was low.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.262_263
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• 2009

본 논문에서는 배전계통에 초전도한류기 적용시 전압 Sag 개선효과를 분석하였다. 기존 배전계통의 Sag는 대부분 계통 고장으로 인한 것으로, 고장시 고장전류 증가로 인한 전압강하로 Sag가 발생하게 된다. 기존 계통에 초전도한류기가 설치되면, 설치 위치 및 임피던스 크기에 따라 고장전류가 저감되어 Sag개선 효과를 볼 수 있다. 따라서 본 논문에서는 배전계통에 초전도 한류기 적용시 한류기 임피던스에 따라 Sag 개선효과를 CBEMA 곡선을 이용하여 분석하였다. 분석결과 피더 앞단에 설치할 경우 Sag 개선 효과가 가장 큰 것으로 나타났으며, 임피던스가 클수록, 리액터보다는 저항을 쓸수록 개선효과가 큰 것으로 나타났다. 또한 고장전류의 저감으로 인하여 차단기 트립시간이 늘어남에 따라 Sag의 지속시간은 보다 커지는 것으로 나타났다. 따라서 한류기 적용시 계전기 재정정을 통하여 트립시간을 조정할 경우 Sag의 크기에 많은 효과가 있는 것으로 분석되었다.

• The Journal of the Korea Contents Association
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• v.20 no.11
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• pp.268-280
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• 2020

This research conducted an empirical analysis of factors that influence the process of job choices and start-ups among the youth. By conducting a comparative analysis on 6 countries with adequate career systems and booming startup industries (China, Indonesia, the UK, Germany, Israel, the US.). The statistical sample is based on the Global Entrepreneurship Trend Ratio and covers a total of 7,082 youth across 7 countries. Multivariate variance analysis and correlational analysis were conductedto compare the average figures among different countries and analyze the regulation effect of parental influence. Job satisfaction, parental influence, and willingness to change future job were selected as the factors that influence job choices. Korea's job satisfaction was the lowest among 7 countries and a willingness to change future job was the highest. Meanwhile, Korea's parental influence was at a medium level among 7 countries. It was proven that job satisfaction had a quasi-control effect on the process of influencing willingness to change future job. Entrepreneurial education, willingness to start-up, job satisfaction, and parental influence were chosen as the factors that influence start-up. Two-way ANOVA were conducted to comparatively analyze each country's average, mutual influence among different factors, and analyze the regulation effect of parental influence. In all countries, start-up education has the effect of raising the willingness to start-up. Also, it was verified that parental influence had a quasi-control effect in the process of career satisfaction influencing the willingness to start-up. The research results will provide meaningful implications for the government and educational institutes including universities when designing policy directions to guide overall career for the youth in the future.