• IE interfaces
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• v.11 no.1
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• pp.165-174
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• 1998

This study has empirically analyzed the competitive strategies of the Korean component manufacturers. To differentiate the competitive strategies, the study employed two indexes: degree of support from customer firms and degree of internal innovation process. The performance measures include cost, quality, delivery and flexibility. 115 questionnaires were finally collected from the Korean part manufacturers and used for the final analyses. ANOVA, Chi-squared tests and t-tests were employed for statistical analyses. There are two major findings in this study. First, both internal innovation and external support from customers are equally important to improve manufacturing competitiveness of Korean component manufacturers. Second, strategic path to improve competitiveness of Korean component manufacturers is as follows: focusing on internal innovation ${\rightarrow}$ seeking for formal relationship with customers ${\rightarrow}$ pursuing external support from customers.

• Journal of Family Resource Management and Policy Review
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• v.3 no.1
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• pp.105-121
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• 1999

The major purpose of this study is to examine the effect of the extracurricular lesson expenses on the Burden of Household Expenditure. The data are collected from 537 housewives with a child aged 18(2nd grade in high school) in Seoul. The statistics used for the data analysis are frequency, percentage, crosstables, one way ANOVA, and multiple regression. The statistic softwear used for this study is SPSS. The Result on a base of empirical analyses follow: 1. Respondentg’s expenditure on extracurricular lesson fees is about 430,000 won per month, which is about 28% of the living cost. 2. There are four types of the methods preparing extracurricular lesson fees: ‘Frugal Type’, ‘Excess Type’, ‘Composit Type’, ‘Self-supportable Type’. 3. Region, the living cost, sex of children, net worth, and the mother’s education show statistically significant effect on the extracutticular lesson expenses. 4. The regression analyses incicate that Burden of Household Expenditure increased by 1.9 point according to 1% increase in expenditure on extracurridular lesson fees. The higher budget share of expenditure on extracurricular fees, the higher level of Burden of Household Expenditure.

• Advances in materials Research
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• v.7 no.2
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• pp.137-148
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• 2018

The present paper is a contribution in characterising end milling process of AISI 52100 ball bearing steel through statistical analyses of variance (ANOVA). The latter has been performed to identify the effect of the cutting parameters on the machined surface roughness and the cutting tool life. Wear measurements have been carried on multilayer coated carbide inserts and the respective surface roughness has been recorded. Taguchi's technique has been adapted to conduct the design experiments in terms of orthogonal arrays according to the cutting parameters (cutting speed, feed rate and depth of cut), the type of coating (TiN, TiCN, TiAlN) and lubricating condition. Regression analyses have conducted to the development of simplified empirical models that can be effectively used to predict surface roughness and tool wear in the present milling process.

• Korean Journal of Child Studies
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• v.9 no.2
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• pp.95-117
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• 1988

The present research was designed to study the effect of gender differences and focus of attention (on sadness and on joy) in altruistic behavior. The subjects were 74 boys and 76 girls from a junior high school in Seoul. Emotion arousing and focus of attention identifying methods were used. Statistical analyses were with two-way ANOVA and $Scheff\acute{e}$ test. There were significant differences in altruisic behavior between the sadness self-oriented group and the sadness other-oriented group. The results were explained in terms of the accessibility of cognitive contents.

• The Korean Journal of Health Service Management
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• v.8 no.4
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• pp.69-80
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• 2014

This study examines the relationship between recuperation nurses' oral health knowledge and perceptions and senile denture management behavior. For this study, 198 recuperation nurses who work in recuperation facilities for elderly patients in Andong City, Gyeongsangbuk-do, are surveyed. The data are investigated statistically using t-test, ANOVA, Pearson's correlation analyses, and logistics regression analyses. The analyses results demonstrate that the rate of correct answers for oral health knowledge of recuperation nurses is 76.5%. The relationship between oral health perceptions and oral health knowledge is 0.324, which is slightly high correlation(p<0.01). In addition, the potential of senile denture management behavior is more likely among nurses who have high levels of oral health knowledge and perceptions. Therefore, it is necessary to explore measures that can promote denture management and oral health for the elderly who enter recuperation facilities through helping raise the level of recuperation nurses' oral health knowledge and perceptions.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.31 no.1
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• pp.285-310
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• 2020

A significant number of studies have been conducted on user perceptions of archive and record contents for the National Archives of Korea (NAK) and local record centers in the field of archives and records management in Korea. Yet, there has not been such a research on the use of digital archive contents designed for contents creation. Accordingly, this study investigated user perceptions of the use of the contents on the Korea Creative Content Agency (KOCCA)'s Culturing archive designed for creation purposes. A survey was conducted, examining the user's degree of interests, the expected user preference of the use and the expected extent of help by the contents of the archive. For the analyses of the survey data, this study performed one-way ANOVA for the comparative analyses of the means related to the subjects' general characteristics and the perceptions, along with cross-tabulation analyses for the association among the same items and nominal variables related to perceptions. On the basis of these analyses, this study suggests the following: ① to supplement the contents of the archive; ② to design customized interfaces and to enhance the readability; ③ to reinforce site PRs for large portal sites and creators' groups.

• Journal of the Korean Society for Railway
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• v.16 no.2
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• pp.144-150
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• 2013

This paper presents an analysis of door design for the Ui LRT based on experiments to predict doorway flow-time and their analyses results. A similar railway vehicle (from Gimhae LRT) and operational conditions are utilized to assess the doorway flow-time through repetitive experiments. Design of the experiments consists of four scenarios, and the experiments are repeated 39 times in total. We use the results of the experiments to verify the design of doors of Ui LRT (e.g. the required number of doors and their width). Various statistical analyses are carried out for the flow-time with respect to the number of boarding/alighting passengers. We make three category levels of boarding/alighting passengers, and analyze the mean and variance for each category, and then carry out One-Way ANOVA to analyze how the number of boarding/alighting and onboard passengers impact flow-time. The results of this paper can be used for making decisions about doors of the LRT vehicle.

• Journal of Navigation and Port Research
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• v.32 no.10
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• pp.751-757
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• 2008

This paper made some statistical analyses on marine accidents in Korean waters using marine accident statistics. They were verified through analyses of one-way ANOVA: the difference in average number of marine accidents among Korean waters, between fishing and non-fishing vessels, and by year and by month The pairwise post hoc multiple comparisons of REGW-For GH test were additionally tested. As a result, there were significance differences among Korean waters. The difference of marine accidents by year was verified to have a statistical significance in the South and the East Sea for the fishing vessel, and in the South Sea for the non-fishing vessel. There were signifiant differences of monthly marine accidents by month in the Yellow and the East Sea for the fishing vessel only.

• Journal of the Korea Convergence Society
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• v.10 no.6
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• pp.325-335
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• 2019

The purpose of this study is to determine the impact of physical activity on relieving job burnout among teachers in Korea. To examine this impact, 527 Korean teachers were used in the data analysis. An exploratory factor analysis and internal consistency analysis were employed to verify the validity and reliability of the Maslach Burnout Inventory (MBI-ES), and a t-test and one-way ANOVA were conducted to find the mean differences according to gender, school level, and length of teaching experience. The impact between factors was also verified through correlation and regression analyses. The results of the analyses showed that first, female teachers and teachers with less teaching experience had higher degree of burnout and fewer physical activities compared to male teachers and teachers with longer teaching experience, respectively. Second, teachers' level of moderate-to-vigorous physical activity (MVPA) was negatively correlated with burnout factors. Third, teachers' vigorous physical activity negatively affected depersonalization factors while teachers' sedentary activity positively affected depersonalization factors.

• Journal of Industrial Convergence
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• v.19 no.1
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• pp.43-51
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• 2021

This study aims to implement analyses of types of conflict perceived by teachers and coping methods. Researchers analyzed 561 survey responses of elementary and secondary teachers using independent t-test and ANOVA. Results are as follows. First, regarding perception of teacher conflict, there were statistically significant mean differences by teacher role, status, and location for conflict toward colleague, parents, and policy, by teacher role and status for conflict toward students, by location for conflict toward administrators, and by teacher role and location for conflict toward staff. Second, in regard to coping methods, gender and teacher status in coping methods for students and gender and teacher role in coping methods for policy showed different aspects in the number of responses. Researchers suggested principals' understanding organizational conflict and enhancing conflict management skills and teachers' discussing strategies for conflict resolution.