• Fashion & Textile Research Journal
• /
• v.14 no.1
• /
• pp.64-74
• /
• 2012

The purpose of this study was to find purchase appraisal standard and post-purchase satisfaction for natural dyeing products. The data used for this study were collected from the women in their from 20's to 50's who are living in the regions of Busan, Ulsan, and Gyeongnam in Korea. The questionnaire of 537 copies was used for a statistical analysis. To analyze data, 2-test, t-test, Cronbach's a test, factor analysis, ANOVA, Duncan test, regression analysis, etc. were carried out. A used statistical package was SPSS 14.0. The analysis results were as follows. The purchase appraisal standards for natural dyeing products were identified as practicality and reliability, suitability of use, symbolic property of status, design property, and convenience of buying. As the analysis result for purchase appraisal standard according to the demographic characteristics, the purchase appraisal standard according to most demographic characteristics showed significant difference. The factors of post-purchase satisfaction for natural dyeing products were verified as product modification and durability, design and price, hygienic property and product quality. As the analysis results of post-purchase satisfaction for natural dyeing products according to demographic characteristics, the post-purchase satisfaction according to demographic characteristics showed significant difference. The factors affecting post-purchase satisfaction were verified as product quality, kinds of item, color change, product lifespan, color change, etc. Consequently, because the purchase appraisal standard of natural dyeing product is very various, it is necessary to enhance post-purchase satisfaction of natural dyeing products by reflecting these factors in advance at the product development stage.

• Journal of the Society of Naval Architects of Korea
• /
• v.34 no.4
• /
• pp.139-147
• /
• 1997

Most of the existing applications developed undter the DOS environment exchange information with the exterior world through reading and writing files in ASCII format. A package program consisting of numerous modules has to exchange data not only between module program and the input/output files but also between module themselves, and hence information exchange via ASCII file is increasingly inefficient and less accurate as the number of modules increases. The present paper describes the design and the implementation of the interface between the module program and the database which stores all the information necessary for the execution of the application. The interface program is then applied to the existing Propeller Design and Analysis System to show that the interface functions smoothly. The development is performed on the personal computer operating under Windows 95 rather than the workstation under Unix operating system to prove that the design and analysis work can be carried out without limit in time and space.

• Journal of Korean Society of Steel Construction
• /
• v.22 no.3
• /
• pp.241-251
• /
• 2010

This paper presents the development of a new analytical solution to the governing differential equation for isotropic annular sector plates subjected to uniform loading in a three-dimensional polar coordinate system. The 4th order governing partial differential equation (PDE) was converted to an ordinary differential equation (ODE) by assuming the Levy-type series solution form and the subsequent mathematical operations. Finally, a series-type solution was assembled with homogeneous and nonhomogeneous solution parts after operating real values and complex conjugates derived from the characteristic equation. To demonstrate the convergence rate and the accuracy of the featured method, several examples with various sector angles were selected and solved. The deflections and internal moments in the example annular sector plates that were obtained from the proposed solution were compared with those obtained from other analytical studies and numerical analyses using the finite element analysis package program, ABAQUS. Very good agreement with the results of other analytical and numerical methodologies was shown.

• Journal of Korean society of Dental Hygiene
• /
• v.12 no.1
• /
• pp.179-187
• /
• 2012

Objectives : The purpose of this study was to examine the influential factors for the choice of dental institutions among adult office workers who were one of major medical consumer groups, the relationship between their health promotion lifestyle and their choice of dental institutions, ways of boosting the efficiency of hospital management and differences in differentiation strategies among dental institutions. Methods : The subjects in this study were 160 office workers who were aged 20 and over and worked in Seoul, North Jeolla Province and South Jeolla Province. They were selected by convenience sampling, and a survey was conducted from February 1 to July 20, 2011. The answer sheets from 149 respondents were analyzed by the statistical package SPSS WIN 12.0 except for 11 incomplete ones. Results : As for the selection factors of dental institutions by general characteristics, they attached a statistically and significantly different importance to convenience according to gender(p<0.05), to reliability, facilities and cleanness according to age(p<0.05), to reliability and convenience according to academic credential(p<0.05) and to facilities and cleanness according to academic credential(p<0.01). Concerning the links between the form of using dental institutions and the selection factors of dental institutions, they gave a statistically and significantly different weight to reliability according to that(p<0.05). Convenience(p<0.001) was the primary selection factor of dental institutions among those who scored higher in health promotion lifestyle. Conclusions : Given the above-mentioned findings, it seemed that the regular implementation of oral health plans geared toward workers and the development of educational programs are required to promote the oral health of workers. But this study examined the workers in several regions only, and the findings might not be generalizable.

• Journal of Engineering Education Research
• /
• v.5 no.2
• /
• pp.22-35
• /
• 2002

The main purpose of this study is to prepare an outline for developing the Contents Systems that achieve self-study systems to make the students adopt themselves into new study atmosphere and maximize the result of study on technical college in Electric-Electronic field. Questionnaire posed to analyze the demand of teaching materials to the students, and professors and also to find characteristics of students in technical college. The SPSSWIN/PC+ statistics Package was used to assay the collected answers. And simple frequency with percentage, average, and standard deviation were calculated to check the entire trend and actual state of each question. The primary outcomes of this study are as follows i) The students in the technical college prefer self-directed learning to lecturer-oriented teaching. ii) It is difficult to offer the technical college students normal education systems since the students?interest and motivation towards study are very low. iii) The lack of capability of foreign language and basic mathematics are considered as obstacles for many students technical college to study. iv) The professors in technical college still depend on traditional method to teach the students without organized research of the intellectual levels and attitude the students. v) Teaching materials in currently use are not appropriated to induce the motivation and interest of study from the students. Also, the teaching materials in use now were discovered not to have enough originality, practical application, andwere text based. Therefore, the improvement of the existing teaching materials was demanded while the fundamental ability to study of general students is declining. Consequently, it is necessary to introduce new teaching materials which are simple, easy, and organized to offer the studen ts study desire and interest.

• Journal of Engineering Education Research
• /
• v.11 no.2
• /
• pp.50-64
• /
• 2008

The final goal of this study is to develop the in-service program of engineering education for professors of engineering college. In this study, survey research method using questionnaire was used to engineering professors of universities and junior colleges. The study contents were analysis of in-service status and educational needs for professors of engineering college. Statistical package SPSS for windows, korean edition version 10.0, was used for analysing data. To do it, 97 questionnaire were used finally. Educational needs was divided into engineering teaching method, engineering evaluation method, and engineering basic competancy. Equation suggested by Borich was induced to calculate the educational needs. Results were that educational needs of engineering teaching method and engineering basic competency were high, respectively, but, educational needs of engineering evaluation method was low. It was known that we need to consider the results during in-service program development.

• Journal of the Korean Society of Food Culture
• /
• v.34 no.6
• /
• pp.719-725
• /
• 2019

This study examined the relative importance and the effective utility of fermented milk by consumers. The questionnaire was developed by an in-depth interview and literature review and was surveyed on-line. Statistical analysis was carried out descriptive analysis, ANOVA, paired t-test, and conjoint analysis using the SPSS package. First, an analysis of the consumption status of fermented milk found that the consumption frequency was 1-2 times/week (36.2%), 3-4 times/week (26.5%). The product choice attributes of fermented milk were found to be the same with 'taste' (3.93) and 'manufacturing date/expired date' (3.92), rated the highest, followed in order by, 'sanitary quality' (3.82), 'origin of ingredient' (3.81). Comparative analysis of the importance and satisfaction level of the choice attributes of fermented milk showed that the choice attributes with lower satisfaction compared to importance were 'taste', 'nutrients', 'manufacturing data/expired date', 'sanitation quality', 'price', 'manufacturing method' and 'certification of quality' (p<0.001, p<0.01). 'Price' and 'certification of quality' were the choice attributes of fermented milk classified as 'Focus Here' because of its high importance and low satisfaction. The preferred combination of relative importance in choice attributes of the fermented milk was 'domestic resource', 'Eat with spoon', and 'none additives'. Therefore, it is believed that sales will increase if dairy companies can improve the 'price' and 'certification of quality'. In addition, the use of domestic ingredients in the development of new fermented milk products in the future could be an important marketing factor in consumer choice.

• Korean Journal of Construction Engineering and Management
• /
• v.8 no.6
• /
• pp.178-187
• /
• 2007

As the government has enforced recently the policies on the distribution of the housing, the construction cost of multi-family housing projects has increasingly become very sensitive and political issue. However, it is difficult to predict the construction cost in planning and design phase of the project because the Bill of Quantity of the multi-family housing projects was composed of breakdown structure based on each work package. To predict the construction cost in planning and design phase for multi-family housing projects in more effective and reasonable way, this study developed the cost breakdown structure based on spaces using Delphi method. The Cost Breakdown Structure (CBS) based on spaces for multi-family housing projects basically consists of three parts: (i) Building part; (ii) Non-building part; and (iii) Additional part. The characteristics of spaces in multi-family housing projects are fully taken into consideration. Then these three parts were subdivided into work packages in terms of work tasks. Additionally, the usefulness and effectiveness of Space CBS in this paper were validated by analyzing the BOQs of several collected sample projects and matching with Space CBS afterwards.

• Journal of Digital Convergence
• /
• v.14 no.11
• /
• pp.417-425
• /
• 2016

The purpose of this study was to examine the impact of perceived social support and self-efficacy on stress-coping behaviors among school-aged children. The subjects in this study were 312 selected students in an elementary school. Data were gathered from May 12 to 23, 2014. The collected data were analyzed by a statistical package SPSS. As a result, social support perceived by the children and their self-efficacy had significant positive correlations with positive stress-coping behaviors. As for influential predictors for positive stress-coping behaviors, social support and self- efficacy were significantly influential. The findings of the study ascertained that the children's positive stress-coping behaviors were under the heavy influence of social support and self-efficacy. In the future, the development of programs that aim at boosting social support and self-efficacy to affect the reduction of children's stress is required, and related intervention is also necessary.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.20 no.6
• /
• pp.572-581
• /
• 1991

For the development of a model to predict absorbed salt quantity in radish during salting, absorbed salt quantity and water content change in radish by the hour were measured at 5%, 10%, 15% brine concentration and $10^{\circ}C,\;20^{\circ}C,\;30^{\circ}C$ respectively. Absorbed salt quantity in radish by the time showed logarithmic function, absorbed salt quantity by brine concentration and temperature showed linear relation. A model to predict absorbed salt quantity in radish at each time, brine concentration and temperature was calculated by the regression program of SPSS. Apparent diffusivity of salt in radish was calculated from appropriated diffusion equation solution of Fick's second law using computer simulation. Salt diffusivity in radish increased as brine concentration increased and the effect of temperature could by expressed by Arrhenius equation. A model equation which could predict salt diffusivity was developed by regression analysis. To specify relation between salt quantity which absorbed into radish and water content which removed out of it, Flux ratio(${\Delta}W/{\Delta}S$) was calcuated. The values showed that the removed water content was greater than the absorbed salt quantity.