• Journal of the Korean Society for Aviation and Aeronautics
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• v.23 no.1
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• pp.103-112
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• 2015

In this study, a study was carried out to see what influence low-cost carrier's e-service quality has on low-cost carrier customers' perceived value and customer satisfaction and what impact the results have on customer loyalty based on the results of previous studies related to e-SERVQUAL, an e-SERVQUAL measurement model for general e-commerce. In addition, a survey of consumers who have experienced using low-cost carrier experience through web sites was conducted. For the analysis of the data collected, SPSS 18.0 was used to conduct frequency analysis, factor analysis, reliability analysis, correlation analysis, and regression analysis and thus to test a hypothesis. Research findings showed that perceived value and customer satisfaction are closely related to customer loyalty, and it was also observed that the reliability factor on the service provided on the web site acts as an important influencing factor for customer loyalty in the perceived value and security factors such as payment by credit cards and protection of personal information serve as important one in terms of customer satisfaction. This study has its limitation in that samples of users who have experienced low-cost carrier are concentrated on specific ages and professions. In the future, it is required to conduct further studies on whether difference is made on the importance of measurement factors related to e-service quality by gender, age group, occupation, and e-service quality.

• Journal of Animal Science and Technology
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• v.65 no.2
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• pp.351-364
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• 2023

The experiment was carried out to study the effect of Korean wild ginseng adventitious root supplementation on the laying performance, egg quality, cytokine expression, ginsenoside concentration, and microflora quantity of Institut de selection Animale (ISA) brown laying hens at 24 weeks old. A total of 90 laying hens were subjected to a completely randomized design at three treatments, five repetitions and six laying hens per replicate. The experiments were divided by diets into the basic feed (CON), basic feed + 0.1% wild ginseng (WG1), and basic feed + 0.5% wild ginseng (WG2). The feeding trial was carried out over a duration of 12 weeks after an initial acclimation period of 2 weeks. Feeds and water were administered ad libitum in mash form, and light was available for 16 hours per day. At the end of study, henday egg production (HDEP), average egg weight (AEW), and egg mass (EM) were increased (p <0.05) in WG2 at week 12. Feed conversion ratio (FCR) was decreased (p < 0.05) in WG2 at week 12. The ginsenoside content in egg yolk was increased (p <0.05) in laying hens in the WG2 treatment at week 12. Relative expression of tumor necrosis factor alpha (TNF-α) was reduced (p < 0.05) in the WG supplemented diets at week 12. The fecal microflora quantity of Lactobacillus was increased (p < 0.05) in WG2 at week 8 to week 12, and Escherichia coli (E. coli) was significantly decreased (p < 0.05) in the WG2 at week 12. We concluded that the result observed in the HDEP, AEW, EM and FCR was due to an increase in ginsenoside content, leading to an improvement in the TNF-α, and fecal microflora quantity such as Lactobacillus and E. coli in the WG2 supplemented diets. We therefore recommend the use of WG at application level 0.5% per basal diet for optimum laying performance in layer hens.

• Child Health Nursing Research
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• v.23 no.3
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• pp.312-318
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• 2017

Purpose: In this study factors affecting quality of life in mothers who have children with precocious puberty were identified. Methods: The participants were 102 mothers of children with precocious puberty. From September 12 to September 30, 2016, data were collected using a structured questionnaire and analyzed using SPSS/WIN 22.0. Results: Regression analysis showed that the model's explanatory power was 45%(F=28.71, p<.001). Role stress (t=-4.83, p<.001), objective burden (t=-2.71, p<.001), and average monthly income (t=4.12, p<.001) were factors affecting quality of life among these mothers. The most influential factor was role stress (${\beta}=-.41$), which showed a negative correlation. Conclusion: Role stress and objective burden were major factors that decreased the quality of life in these. The findings indicate that effective strategy programs for reducing role stress and objective burden are necessary to improve the quality of life in mothers of children with precocious puberty.

• Journal of Fashion Business
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• v.15 no.1
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• pp.145-157
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• 2011

The purposes of this study were to investigate the impacts of empowerment, job satisfaction, and organizational commitment on service quality. So, this research attempted to test the hypothesized relationships between service quality and its determinants such as job satisfaction, organizational commitment, and customer orientation. To measure these hypotheses, total 200 questionnaires were handed out and 185 were collected. Finally 163 questionnaires were used for the analysis, while 22 were found to be invalid. The frequency analysis, factor analysis, reliability analysis, and multiple regression were conducted after coding and cleaning by SPSS 18.0 The result of this study are as follow. As a result of multiple regression, it shows that empowerment have an effect on job satisfaction, organizational commitment, and service quality. And it shows that job satisfaction and organizational commitment have an effect on service quality.

• Journal of the Korean Society of Costume
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• v.52 no.3
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• pp.161-169
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• 2002

The purposes of this study were to investigate effects of the clothing consumption value on the service quality and to examine the determinant factors on the attitude of interned apparel shopping. The data were collected from 227 female adults using questionnaire. Using SPSS 9.0 package. Cronbachs $\alpha$, factor analysis, and multiple regression analysis were performed. The results could be summarized as follows. 1. Clothing consumption value was composed of 5 factors : fashion value, social value, functional value, personality value, and emotional value. 2. Clothing consumption vague had direct effects on the service quality of internet apparel shopping mall. The service quality was perceived as reliability, advantage. responsibility, product assortment, tangibles, and rapidness. 3. Consumer characteristics such as age, household income. experience of internet shopping. and web search ability, clothing consumption value. and product assortment of the service quality had significant effects on the attitude of internet apparel shopping.

• Journal of Korean Society for Quality Management
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• v.7 no.2
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• pp.22-28
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• 1979

The problem considered in this paper is to select the vital factor effect to the product quality through the experimental design and analysis of response surface, so as to control the quality improvement of industrial product. In this time, even through the mathematical model is unknown it could be applicable to control the quality of industrial products and to determine optimum operating condition for many technical fields, particulary, for industrial manufacturing process. When a set of data is available from an experimental design, it is often of interest 1:0 fit polynominal repression model in independent variables (eg, time, temperature, pressure, etc) the optimize the response variable (eg. yield, strength etc). This paper proposes a method known to obtain the optimum operating condition, and how to find the condition by using table of orthogonal array experiments, and optimization methodology of statistical model. A criterion can be applied determining to optimum operating conditions in manufacturing industry and improving the fit of response surface which may be used for prediction of responses and quality control of industrial products.

• Journal of the Korean Dietetic Association
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• v.10 no.4
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• pp.401-406
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• 2004

The purposes of this study was to evaluate the foodservice quality on the viewpoint of personnel in hospital foodservice. In result, S hospital's foodservice quality, that was evaluated by personnel, was comparatively high on the every variables and factors, especially on 'Q13. Meals delivery to the bed'(4.70 out of 5.0), 'Q14. Removal service of tray by foodservice personnel'(4.63), 'Q15. Kind foodservice personnel'(4.63), 'Q16. Foodservice personnel's clean and neat uniforms'(4.56) and 'factor 4. personnel attitude'(4.63). Foodservice quality factors weren't significant by general characteristics of personnel, thus all personnel were considered to hold similarly the level of foodservice quality. On the basis of these results, the gap between foodservice providers and customers need to be analyzed in the further study.

• Journal of Distribution Research
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• v.17 no.5
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• pp.85-111
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• 2012

Introduction : The purpose of this study was to examine the relationship between perceptual characteristics of consumers and intent of relational continuance for PB(Private Brand) products in discount stores. This study was conducted as an empirical study based on survey. For the empirical study, factors of PB products as characteristics perceived by consumers such as perceived quality, store image, brand image and perceived value were deduced from preceding studies. The effect of such factors on intent of relational continuance mediated by brand trust and brand equity of PB products was structurally examined. Research Model : Based on theory analysis and hypotheses, constructed a Structural Equation Model(SEM). The research model is shown in Figure 1. Research Method : This paper is based on s qualitative study of selected literature and empirical data. The survey for empirical study was carried out on consumers in Gyeonggi and Busan between January 2012 and May 2012. 300 surveys were distributed and 253 (84.3%) of them were returned. After excluding omissions and insincere responses, 245 surveys (81.6%) were used for final analysis as effective samples. Result : First of all, the Reliability was carried out for instrument used. The lower limit of 0.7 for Cronbach's Alpha as suggested by Hair et al. (1998). And Construct validity was established by carrying out exploratory factor analysis by Varimax rotation for all. Four factor result for the consumer's perceptual characteristics of PB Products, two mediating factors and one dependent factor. All constructs included in research framework have acceptable validity and reliability. Table 1 shows the factor loading, eigen value, explained variance and Cronbach's alpha for each factor. In order to assure validity of constructs, I implemented Confirmatory Factor Analysis (CFA), using AMOS 20.0. In confirmatory factor analysis, researcher can take control over the specification of indicators for each factor by hypothesizing that a specific factor is loaded with the relevant indicators. Moreover, CFA is particularly useful in the validation of scale for the measurement of specific construct. CFA result summarized Table 2 shows that the fit measures of all constructs fulfill the recommended level and loadings are significant. To test causal relationship between constructs in the research model, used AMOS 20.0 that provides a graphic module as method for analysing Structural Equation Modeling. The result of hypothesis test is shown in Table 3. As a result of empirical study, perceived quality, brand image and perceived value as selected attributes for PB products showed significantly positive (+) effect on brand trust and brand equity. Furthermore, brand trust and brand equity showed significantly positive (+) effect on intent of relational continuance. However, store image of discount stores selling the PB products was analyzed to have positive (+) effect on brand trust and no significant effect on brand equity. Discussion : Based on the results of this study, the relationship between overall quality, store image, brand image and value perceived by consumers about PB products and intent of relational continuance was structurally verified as being mediated by brand trust and brand equity. Looking at the results, a strategic approach that maximizes brand trust and equity value for PB products by large discount stores is required on top of basic efforts to improve quality, brand image and value of PB products in order to maximize consumer's intent of relational continuance and to continuously attract repeated purchase of products.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.13 no.4
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• pp.286-293
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• 2000

In this paper we investigated the structural dielectric and piezoelectric properties of 0.03Pb(Sb$\_$1/2//Nb$\_$1/2/)-0.97Pb(Zr$\_$0.495//Ti$\_$0.505/)O$_3$+0.5 wt% excess PbO + wt% MnO(X=0, 0.1, 0.3, 0.5, 0.7) ceramics to develop the high-power piezoelectric transformer. The piezoelectric transformers with dimension of 27.5$\times$27.5$\times$2.5［mm$^3$］were fabricated and their electrical properties were measured. Maxima of piezoelectric properties such as electro-mechanical coupling factor of 0.534 and mechanical quality factor of 1487 were obtained for the PSN-PZT with 0.3wt% MnO. voltage step-up ratios of piezoelectric transformers at 500［Ω］and no load were 0.78, 12.82, respectively. The maximum efficiency of piezoelectric transformer was 98.6% at 800［Ω］. While the 14W fluorescent lamp were driven by the piezoelectric transformer for more than 20［min］, increment of temperature in the piezoelectric transformer was 7［$\^{C}$］.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.21 no.11
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• pp.1000-1004
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• 2008

In this paper, the influences of poling electric field on piezoelectric properties of $0.95(K_{0.5}Na_{0.5})NbO_3$-$0.05Li(Sb_{0.8}Nb_{0.2})O_3$ (abbreviated as KNN-LSN) ceramics were investigated. The specimens was sintered at sintering temperature of $1050^{\circ}C$. They showed orthorhombic phase structure without secondary phase. Electromechanical coupling factor (kp), dielectric and piezoelectric constant($d_{33}$) increased with poling electric field. However, mechanical quality factor (Qm) decreased. Take into account of poling conditions and piezoelectric properties of KNN-LSN ceramics, the optimum poling condition for KNN-LSN ceramics was poling electric field of 4.5 kV/mm. At the time, kp of 0.458, Qm of 43.97, $d_{33}$ of 278 pC/N, and dielectric constant of 1079 were shown, respectively.