• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.2
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• pp.358-365
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• 2001

The purpose of this study was to investigate the relation between various aspects of multiple body image and clothing behavior i.e. individuality/self expression, body improvement, social approval, sex appeal. The data were collected from 498 female university students in Seoul and Kyong Ki Province and analyzed using factor analysis, Pearsons correlations, reliability test, analysis of variance, and multiple regression analysis. The results of this study were as follows: 1) Four dimensions of multiple body image were identified : appearance, body attractiveness, degree of fitness and atheletic skill. 2) Perception on appearance and fitness aspect of multiple body image has a positive correlation with all aspects of clothing behavior i.e. individuality/self expression, body improvement, social approval and sex appeal of clothing behavior. Body attractiveness and atheletic skill of multiple body image also had a positive correlation with individuality/self expression, and sex appeal.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.17 no.2
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• pp.71-76
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• 2008

Micro end-milling is one of effective technology that is able to do ultra-precision machining while increasing the productivity and has wide application field. But selection of machining condition is very difficult because of complicated machining mechanism. Therefore this study was carried out to select working factors to get the optimum surface roughness. Machining condition are depth of cut, feed rate and spindle revolution. The result of this study showed that Surface roughness was affected, in the other of depth of cut, spindle revolution, feed rate. And this study provided an regression equation relating surface roughness to working factors through Regression Analysis and determination coefficient of regression equation had a satisfactory reliability of 79%.

• Journal of Families and Better Life
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• v.4 no.1
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• pp.71-93
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• 1986

The purpose of this study is to identify sevral variables which were assumed to have relationships with the role conflict and marital satisfaction of married working women, and to examine the relationship of the role conflict and marital satisfaction of married working women in Korea. The data for this study was obtained from the survey of the 262 married working women who reside in the city of Seoul employing questionnaire method. Such methods as frequency, percentile, factor analysis, analysis of variance (t-test, F-test), and Pearson's correlation were used for the statistical analysis for this study. The major findings of this study can be summarized as follows; 1) The role conflict level of married working women was related to variables such as age, the number of children, work time, husband's support, job satisfaction, motivation to work outside the home. 2) The overall marital satisfaction was relatively high when they have two children and the presence of household work help. Futhermore, ut was found that marital satisfaction considerably high when husband's support and job satisfaction was highly accorded. 3) The role conflict and marital satisfaction of married working women were significantly negatively correlated.

• Transactions of the Korean Society of Automotive Engineers
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• v.8 no.5
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• pp.173-180
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• 2000

European side impact analysis of an electric vehicle was done using robust design. Locations and section properties of some of the vehicle structure components which influence the european side impact characteristics were chosen as the main factors for the robust design. Eight factors were considered for the analysis: one with two level and seven with three level combinations comprising the L18(21$\times$37) orthogonal array. It is shown that the sensitivities of the factors and the best combination of the factors can be obtained, and that the location of the main components were as much sensitive as the section properties of those. Also it is shown that the interactions were existed between some factors.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.8 no.1
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• pp.95-104
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• 2001

This study was done to develop an euthanasia attitude scale. Subjects who participated in the study were a convenience sample of 234 Korean nurses. Data were collected through a survey over a period of three months. The analysis of the data was done using SPSS PC for descriptive statistics, factor analysis and Cronbach's Coefficient Alpha. Initially 63 items were generated from interview data from eighteen nurses and from a literature review. This preliminary scale was analyzed for a reliability and validity. The results are as follow: 1, Crombach's Coefficient alpha for the 19 items was .8804. 2. Factor analysis was done in order to confirm construct validity and four factor were extracted from the results. These contributed 56.6% of the variance in the total score. 3. Each factor was labled 'qualify of life', 'respect of life, 'client's right', 'medical ethics'. The author suggests that this scale could be used in assessing the attitude of Korean nurses toward euthanasia.

• Environmental Engineering Research
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• v.19 no.3
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• pp.197-203
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• 2014

This study estimated spatial and seasonal variation of water quality to understand characteristics of Nakdong river basin, Korea. All together 11 parameters (discharge, water temperature, dissolved oxygen, 5-day biochemical oxygen demand, chemical oxygen demand, pH, suspended solids, electrical conductivity, total nitrogen, total phosphorus, and total organic carbon) at 22 different sites for the period of 2003-2011 were analyzed using multivariate statistical techniques (cluster analysis, principal component analysis and factor analysis). Hierarchical cluster analysis grouped whole river basin into three zones, i.e., relatively less polluted (LP), medium polluted (MP) and highly polluted (HP) based on similarity of water quality characteristics. The results of factor analysis/principal component analysis explained up to 83.0%, 81.7% and 82.7% of total variance in water quality data of LP, MP, and HP zones, respectively. The rotated components of PCA obtained from factor analysis indicate that the parameters responsible for water quality variations were mainly related to discharge and total pollution loads (non-point pollution source) in LP, MP and HP areas; organic and nutrient pollution in LP and HP zones; and temperature, DO and TN in LP zone. This study demonstrates the usefulness of multivariate statistical techniques for analysis and interpretation of multi-parameter, multi-location and multi-year data sets.

• Korean Journal of Child Studies
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• v.11 no.1
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• pp.15-28
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• 1990

The purpose of this study was (1) to investigate and order the levels of parental authority concepts established by Damon, and (2) to investigate the relationship between the development of parental authority concepts and the child's age and sex. The subjects of this study were 120 children from an elementary school in Seoul. There were 40 subjects (20 males and 20 females) in each of three age groups: 8-, 10-, and 12- year-olds. The subjects were interviewed individually using Damon's(1977) open-ended questions concerning family rules. Responses to the assessment questions were coded as positive or negative, and responses to the judgement concept questions were coded into 6 levels. Statistical analysis of obtained data was by percentage, Spearman correlation using an ordinal scale, two-way analysis of variance, and Duncan test. The results showed that (1) the developmental levels of parental authority concepts established by Damon conformed to an ordinal scale, and (2) the development of parental authority concepts was related to child's age but not to child's sex.

• Transactions of the Korean Society of Mechanical Engineers
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• v.17 no.12
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• pp.2962-2969
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• 1993

Recently, a study on the mirror-like surface grinding of brittle materials is active and as branch of these study, new dressing method for superabrasive wheel, electrolytic inprocess dressing(Elid) was developed. Using Elid, the mirror-like surface of brittle material can be generated without polishing or lapping process. In the future, Elid grinding will take important place in industry. But so far the analysis on Elid grinding was not quantitative but qualitative. In this study, The purpose is the quantitative analysis on Elid grinding by computer simulation, For computer simulation, the mean and the variance of the abrasive distribution were measured by tracing of the grinding wheel with stylus in transverse direction in the case of respective dressing current condition. This measurement result in a density distribution of abrasive by mathematical formulation using statistical method. The prediction of the surface roughness in Elid grinding was based on this density distribution.

• Journal of Korean Academy of Nursing
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• v.28 no.3
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• pp.540-549
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• 1998

This study has been designed to develop a health behavior scale. Data were collected through a survey over a period of two month period. Subjects who participated in the study were 298 Korean adults. The author used a convenience sampling method. The analysis of the data was done with SPSS PC for descriptive statistics and factor analysis. Initially 34 items were generated from the interview data of twenty one adults and from literature review and survey. This preliminary scale was analyzed for a reliability and validity. The results are as follow : 1. Crombach Coefficient alpha for the 30 items was .7907. 2. Factor analysis was done in order to confirm construct validity and nine factor were extracted from the results. These contributed 54.4% of the variance in the total score. 3. Nine factor label were 'exercise' 'stress management' 'energy conservation' 'limit in liking' 'selection of food' 'ingestion of natural food' 'health examination' 'relaxation' and 'nutrition'. The author suggests that this scale could be adequately applied in assessing the health behavior of Korean adults. The results of using this scale in a study can contribute to designing an appropriate health promotion strategy.

• Fashion & Textile Research Journal
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• v.2 no.5
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• pp.383-390
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• 2000

The purpose of this study was to classify the somatotype of elderly women and to extract discriminant factors of the classification. The subjects were 218 elderly women aged 60-85 years old. Data were collected from 46 anthropometric and photographic measurements of each subject and analyzed by frequencies, crosstabs, analysis of variance and discriminant analysis. The somatotype was classified into 5 types according to the lateral view. The normal type was defined as the type which the plumb line passes through the cervicale and the lateral malleolus. The lean-back type positioned the plumb line more posteriorly than normal type. The swayback type positioned the plumb line at about the same line as the lean-back type, but curvature of lateral view was prominent. The lean-forward type I and II positioned the plumb line more anteriorly than normal, but the spinal curvature of the type II disappeared. As the result of discriminant analysis, significant discriminant factors of anthropometric measurement were cervicale height, anterior waist height, neck point to posterior waist length, anterior waist length. Photographic measurement were C valve, D value, ∠${\alpha}$ and ∠${\beta}$.