• 대한조선학회지
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• 제26권4호
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• pp.14-26
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• 1989

선박의 추진성능 추정을 위한 통계해석 기법을 연구하고 전산 프로그램을 만들었다. 조파저항계수의 추정식은 조파저항이론을 이용하여 스테이션 별 횡단면적계수의 곱으로 표현되도록 도출해 내었고, 이에 대한 회귀계수는 모형시험 결과를 회귀분석하여 얻었다. 형상계수, 반류비 및 추력감소율의 추정식들은 선체 주요지수, 스테이션 별 횡단면적계수 및 모형시험 결과들을 순순하게 회귀분석하여 얻었다. 통계해석은 여러가지 기술통계와 단계별 회귀분석 기법을 적절하게 이용하여 수행하였다. 추진성능 추정 프로그램은 저항계수, 추진계수, 프로펠러 단독효율 및 각종 척도효과 등을 모두 쉽게 수용할 수 있도록 다양하면서도 간결하게 만들었다.

• 한국연초학회지
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• 제20권1호
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• pp.108-114
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• 1998

This study was conducted to evaluate the techniques or analyzing tobacco smoke by statistical treatment method for the analytical data through Asia Collaborative Study V. In addition to five smoke components analysis, consisting of TPM, water, nicotine, NFDPM, and puff count of four cigarettes samples, statistical parameters such as mean, standard deviation, box-and-whisker plots, h plots, k plots, regression coefficients, reproducibility (R), and repeatability (r) were also calculated. Analysis of water content of cigarette smoke was the most difficult task, whereas puff count analysis was the easiest as well recognized by all laboratories. Analysis of nicotine and puff count accounted for both the lowest and the highest variation among four parameters. The water coefficients indicated more randomness or variation in the slops. The NFDPM data exhibited both types of deviations from linearity. Water content of sample D indicated the highest difference between two single results and between two interlaboratory test results. As a whole, KGTRI ranked higher in the analytical techniques for statistical evaluation of results when compared with the practices of 28 other laboratories.

• International Journal of Costume and Fashion
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• 제15권2호
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• pp.19-36
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• 2015

The purpose of this study is to research the purchasing behavior according to the pursuit benefit for outdoor wear and to present a direction to outdoor wear. Questionnaire survey was administered to 533 male and female adults in their 30s to 40s living in Seoul and Gyeonggido from May 1 to 15, 2014. Concerning the statistic treatment for data analysis, SPSS for Window 18.0 was used to carry out frequency analysis, factor analysis, reliability test, cluster analysis, ANOVA and Duncan test as post-test. Benefit was drawn out as 4 elements including 'showing off & brand benefit sought', 'fashion benefits sought', 'functionality benefits sought' and 'economic benefits sought'. Group analysis according to benefit showed that it was materialized to 'multiple benefit sought group', 'unconcern group', 'showing off & brand benefit sought group' and 'utility benefit sought group'. There is an academic significance in that this research found out the level of benefit in purchasing outdoor wear and the difference of purchasing behavior by consumer groups according to benefit. This result might be used efficiently by marketers in outdoor clothing industry in classifying consumers and establishing the marketing strategy to deal with it.

• 한국대기환경학회지
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• 제18권6호
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• pp.465-474
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• 2002

In order to reflect variability due to exposure factors as well as to assess uncertainty associated with cancer risk posed by airborne trace metals, a Monte Calro analysis has been made in this study. Input parameters for Monte Carlo analysis were developed or adjusted using body weight, lifetime, and exposure frequency of Koreans. Ambient distributions of toxic metals were founded to be lognormal distributions for most of them using goodness-of-fit tests. Thus, the 95% UCL and 95% LCL of carcinogenic metals were estimated by H-statistic method for lognormal distribution, respectively. The results of Monte Carlo analysis of 95% UCL showed that the 95th percentile risks for men and women were 1.2 and 1.1 times higher than an acceptable risk of 10$^{-5}$ , respectively. The probabilities which those risks exceed the acceptable risk were estimated to be 8% and 6%, respectively, while to be 95% and 94%, respectively on the basis of the minimum acceptable risk of 10$^{-6}$ , respectively. Approximately 90% of total cancer risk came from human carcinogens such as arsenic and hexavalent chromium. Therefore, it is necessary to properly manage both arsenic and hexavalent chromium emissions in the study area.

• 복식문화연구
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• 제23권3호
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• pp.468-483
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• 2015

Fast fashion brand marketers should develop marketing strategies that effectively satisfy the values consumers seek when purchasing fast fashion brands. This study aimed to identify the consumption value factors of fast fashion brands and to reveal the value factors that influence attitudes toward purchasing fast fashion brands. Data were gathered by surveying university students in the Seoul metropolitan area using convenience sampling. Three hundred and five questionnaires were used in the statistical analysis, which consisted of exploratory factor analysis using SPSS and confirmatory factor analysis and path analysis using AMOS. The factor analysis revealed the following six value factors: Emotional value, social value, price/value for money, durability value, eco-value, and consistency value. The fit statistic for the six-factor model was quite acceptable. Two of the six value factors, emotional value and price/value for money, positively influenced attitudes toward purchasing fast fashion brands. The overall fits of the revealed model suggested that the model fit the data well. The results suggested that fast fashion marketers need to understand the value factors that motivate consumers to purchase fast fashion brands. In addition, marketers should focus their efforts on satisfying emotional value and price/value for money in order to establish their brands in the increasingly competitive fast fashion industry.

• 한국태양에너지학회 논문집
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• 제31권5호
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• pp.99-104
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• 2011

It has to take quantitative energy usage of high school education facilities in nations to set goals of their energy reduction. Therefore, The purpose of this study is to present various analysis result of energy consumption that is a statistic alanalysis of high school education facilities in Korea to set the goal of energy saving. This study has enforced analysis and has provided used energy for the year 2008 and general information from 2022 high school education facilities in 16 cities in South Korea by the relevant agency. Used energy sources in high school education facilities are electricity, gas for heating, oil, coal, water, and this study has changed the various used energy sources as unit 'kWh' only for comparison and analysis them.

• 한국보건간호학회지
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• 제33권3호
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• pp.409-419
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• 2019

Purpose: Factors related to the major satisfaction of nursing students were systematically searched and quantitatively synthesized. Methods: Meta-analysis was conducted upon 47 articles in Korean master and doctorate degree dissertations and academic journals. Meta-analysis of major satisfaction-related variables was conducted using Comprehensive Meta-Analysis (CMA) 2.0 program. The effect size of the related variables was analyzed by converting the statistic r value to Fisher's Z. Results: The overall average effect size of major satisfaction was the largest effect size (ES=.49), followed by cognitive factors (ES=.58), affective factors (ES=.45), and psychomotor factors (ES=.31). The cognitive factors were in the order nursing professionalism(ES=.70), nurse's image (ES=.65), and critical thinking disposition (ES=.36). The affective factors were self-esteem (ES=.59), emotional intelligence (ES=.55), career identity (ES=.49), self-efficacy (ES=.48), college adjustment (ES=.45), practice satisfaction (ES=.45), resilience (ES=.42), (ES=.40), grit (ES=.34), and stress (ES=.26). The psychomotor factors were clinical performance ability (ES=.38) and career search behavior (ES=.31). Conclusion: The results of this study are valuable when giving consideration to the variables related to nursing students' major satisfaction, for developing a strategic model to enhance the satisfaction of nursing students.

• 한국환경과학회지
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• 제16권3호
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• pp.369-376
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• 2007

This study was conducted to evaluate water quality in coastal sea of Kunsan using multivariate analysis. The analysis data in Coastal Sea of Kunsan use of surveyed data by the NFRDI from April 2000 to November 2002. Twelve water Quality parameter were determined on each sample. The results was summarized as follow ; Water quality in coastal sea of Kunsan could be explained up to 62.782% by four factors which were included in loading of nitrogen-nutrients by Keum river(24.688%), suspended solids variation (12.180%), seasonal climate variation (18.367%) and variation of DIP (10.546%). To analyze spatially and monthly variation by factor score, it was divided by inner area and outer area spatially, and spring and summer monthly. The result of time series analysis by factor score, inner area of Kunsan coastal sea(St.1 and St. 2) was the most affected by nitrogen-nutrient and suspended solids due to runoff by Keum river. It could be suggested from these results that it is important to reduce tile pollution loads from Kuem river for the control of the water quality in coastal sea of Kunsan.

• 융합경영연구
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• 제5권3호
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• pp.21-29
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• 2017

This study was conducted to examine the effects of interactivity, entertainment and ease of use, which are positive characteristics of SNS, on SNS using satisfaction and using reluctant intention and the roles of perceived values and trust among users in the relationships among these variables, in order to find a clue to contribution to positive use and development of SNS. For this study, a survey was performed targeting normal people in Seoul and the metropolitan area and a total of 224 effective questionnaires were acquired. Then frequency analysis, descriptive statistic analysis, correlation analysis and structural equation path analysis were carried out. As a result of analysis, interactivity and ease of use increased SNS using satisfaction and decreased using reluctant intention via trust and users' perceived values respectively. The result of analyzing the modification model showed that interactivity and entertainment directly increased SNS using satisfaction. These findings imply that SNS providers fully need to reflect the needs of consumers for interactivity, entertainment and ease of use for improving consumers' perceived values and trust. It is also concluded that consumers can enjoy positive SNS activities by increasing trust with SNS users through a positive understanding of interactivity and participation.

• 벤처창업연구
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• 제10권6호
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• pp.261-268
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• 2015

본 연구는 초등학생의 리더십이 창업가정신에 미치는 영향과 진로인식이 창업가정신에 조절효과를 줄 것인지를 밝히려는데 목적이 있다. 연구 대상은 서울에 소재한 초등학교 4학년 이상의 학생들로 구성하여 2015년 8월에 420부의 자료를 수집하여 SPSS 21.0 통계프로그램을 사용하여 분석하였다. 본 연구에 사용된 통계분석 방법은 빈도분석과 기술통계분석, 교차분석이었다. 연구문제는 첫째, 초등학생의 리더십은 창업가정신에 유의한 영향을 미치는가? 둘째, 진로인식은 초등학생의 리더십과 창업가정신의 관계에서 조절역할을 할 것인가?이다. 본 연구의 연구결과는 다음과 같다. 첫째, 초등학생의 리더십이 창업가정신에 유의한 영향을 미치는 것으로 나타났다. 둘째, 독립변수의 요인이 창업가정신에 미치는 영향관계에 있어서 조절변수로서 진로인식에 따라 차이가 있는지에 관하여는 일부에서만 조절변수로 유의한 효과를 보이고 있다. 본 연구에서는 도출된 결과를 중심으로 현 시대가 요구하는 리더십 교육의 필요성에 대한 교육적 대안을 찾아 자료를 제공하고 초등학생의 교육정책에 활용할 근거를 제시하였다.