• Journal of the Korean housing association
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• v.15 no.6
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• pp.37-46
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• 2004

The purpose of the study was to examine the socio-psychological factors of outdoor spaces in apartment complex. The data for the empirical analysis were collected from 412 households living in Haeundae New Town, Busan, and analyzed using descriptive statistics, factor analysis, and one-way analysis of variance and Duncan's multiple range test. The socio-psychological factors abstracted were territoriality, privacy, safety, sociality, accessibility, and identity. It was found that the households were generally positive to the overall socio-psycological factors in the current apartment complex. The significant explanatory variables for the responses to the socio-psychological factors were age of the wife, education of the wife, occupation of the wife, tenure type, monthly household income, length of residence, and overall satisfaction with outdoor spaces.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2010.11a
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• pp.419-422
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• 2010

An unsteady numerical combustion analysis was performed to investigate the combustion characteristics of A Dual Combustion Ramjet(DCR) engine using a gas generator. According to a variance of the equivalence ratio of the gas generator, the flow pattern in the combustor was analyzed. A typical acoustic frequency in the combustor was observed by detail analysis of pressure fluctuation at each location of the combustor.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.11 no.6
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• pp.36-41
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• 2012

In this study, we turning plastic mold steel (STAVAX) against cutting speed, depth of cut, feed rate using whisker reinforced ceramic tool (WA1). To predict cutting force, analyze principal, radial, feed force with multi-regression analysis. Results are follows: From the analysis of variance, affected factor to cutting force feed rate, depth of cut, cutting speed in order and cutting speed was very small affect to cutting force. From multi-regression analysis, we extracted regression equation and the coefficient of determination$(R^2)$ was 0.9, 0.88, 0.856 at principal, radial and feed force. It means regression equation is significant. From the experimental verification, it was confirmed that principal, radial and feed force was predictable by regression equation.

• Transactions of the Korean Society of Automotive Engineers
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• v.9 no.3
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• pp.190-200
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• 2001

The homogenization method is applied to maximize crash energy absorption for a given volume. To obtain the best combination of optimizing factors by resizing and threshold algorithms for an example problem, the sensitivity analysis has been performed using design of experiments. The results show that very little interaction among optimizing factors is found. Optimization analysis of several combination of factors is conducted; and the orignal design and a new design with holes for an example problem are compared for crash energy absorption.

• Korean Institute of Interior Design Journal
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• v.13 no.1
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• pp.54-61
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• 2004

This study examined the current interior conditions of children's rooms, and investigated the children's satisfaction of the rooms and their needs for improvement. Survey questionnaires were given to 205 elementary school children in the third or lower year grades and to their parents. Frequency analysis, t-tests, analysis of variance, and Duncan tests were mainly employed for data analysis. The findings indicated that the respondents' satisfaction of the children's rooms differed in their grade, room size, and the main color of the rooms. In general, those in the third grade, those in the rooms under 16.5$m^2$, or mainly painted in cold colors, tended to respond more negatively. Meanwhile, they expected to exchange their furniture for study, such as desks and bookshelves, and to individually possess electric appliances in their rooms. Most children's rooms were designed on the basis of the parents' preferences: The more the rooms reflected the children's opinions, the higher satisfaction with the furniture they showed.

• Korean Journal of Child Studies
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• v.6 no.1
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• pp.61-74
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• 1985

The purpose of the present study was to investigate the relationship between spatial ability and sex-role orientation in children. For this purpose, 303 boys and 293 girls were selected randomly. Spatial ability was measured by Embedded Figures Test. Sex-Role orientation was measured by the Children's Personal Attributes Questionnaire (Spence, Helmreich & Stapp, 1975) which was translated into Korean. An item analysis was done. For the data analysis, a three-way analysis of variance and t-test were applied. The results of the present study showed that 1) spatial ability gradually improved between 10 and 14 years of age. 2) There were no significant differences between girls and boys in the performance on the spatial ability test. 3) Masculinity in girls was not significantly associated with high spatial ability. However, there was a tendency for the masculine girls in the direction of higher spatial scores than feminine girls and undifferentiated girls. 4) Femininity in boys was not significantly associated with high spatial ability. However, there was a tendency for the feminine boys in the direction of higher spatial scores than masculine boys and undifferentiated boys.

• Journal of the Korean Home Economics Association
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• v.37 no.1
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• pp.109-118
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• 1999

The effective construction for ready-made clothes is one of the central concerns of both consumers and manufactures in today's apparel industry. So in order to reduce the burden of stocks and increase clothing fitness, systematic information on typical body size and somatotypes is essential. This study was performed to provide fundamental data on junior high school girls' somatotype by classifying the lower body somatotype and analyzing the characteristics of each somatotype. The subject were 234 Korean Junior High School Girls. The subjects were directly measured anthropometrically and indirectly analyzed photographically. The result of factor analysis indicated that 6 factors were extracted through factor analysis and those factors comprise 70.2% of total variance. Using factor scores cluster analysis was carried out and the subject were classified into 3 cluster as their lower boby front and side silhouette.

• Journal of the Korean Home Economics Association
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• v.45 no.6
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• pp.1-9
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• 2007

Even though self-confidence is a personal factor of a people, it works as behavioristic factor in consumer behavior. In this study, the influence of consumer self-confidence on clothing purchase behavior was investigated. A total of 284 data sets were analyzed after collecting questionnaires from college students in Seoul using convenient sampling method. For data analysis, chi-square test, analysis of variance, reliability test and factor analysis were performed by SPSSWIN program. The results were as followed. First, the clothing purchase places were affected by the consumers' level of self-confidence. The more confident consumers preferred internet shopping and Dongdaemun market to large-scale shops. The discount stores were selected by the less confident consumers. Second, information search was one of the main reasons to visit internet shopping mall by the more confident consumers. Third, the more confident consumers showed the higher level of clothing involvement than the less confident consumers. Finally, unplanned purchases, such as pure impulse buying and reminder buying were more likely to occur by the more confident consumers with less purchase conflicts.

• The Korean Journal of Applied Statistics
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• v.1 no.1
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• pp.21-28
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• 1987

In agricultural research field experiments are usually conducted with the sam etreatments in the same experimental design over several locations for several years in order to draw widely adaptable results. For generalization of the results from the individual locations and the properties of the treatment responses may be evaluated by carrying out the combined analysis over agricultural climate zones or country level. A method of combined analysis of variance was presented and examined by applying to a set of data obtained from a series of rice variety adaptability trials conducted by Kyung Buk Provincial Office of Rural Developmention 1986.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1993.06a
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• pp.1321-1325
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• 1993

This paper investigates the use of Fuzzy vector quantizer(FVQ) in speech synthesis. To compress speech data, we employ K-means algorithm to design codebook and then FVQ technique is used to analysize input speech vectors based on the codebook in an analysis part. In FVQ synthesis part, analysis data vectors generated in FVQ analysis is used to synthesize the speech. We have fined that synthesized speech quality depends on Fuzziness values in FVQ, and the optimum fuzziness values maximized synthesized speech SQNR are related with variance values of input speech vectors. This approach is tested on a sentence, and we compare synthesized speech by a convensional VQ with synthesized speech by a FVQ with optimum Fuzziness values.