• Culinary science and hospitality research
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• v.20 no.3
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• pp.125-136
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• 2014

The purpose of this study is to provide the bakery franchise chains with practical suggestions through the analysis of the product quality that leads to customer trust and long-term reliance. For this study, I collected corresponding materials and made an inquiry survey with special emphasis on the covariance analysis to produce trustworthy results along with the analysis of factors. For the empirical analysis, among 350 copies of questionnaire distributed in the Seoul metropolitan area, 322 copies with 96% of usable response rate were used for the analyses using SPSS 18.0 and AMOS 18.0. Then, the covariance analysis was carried out for the verification of the hypotheses of the study. A summary of the results are as follows. First, texture, color and decoration, flavor and feel showed a positive effect on customer trust. Second, customer trust had a positive effect on the long-term orientation. Third, texture, color and decoration, flavor and feel showed a positive effect on the long-term orientation.

• Journal of Korea Water Resources Association
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• v.48 no.9
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• pp.743-756
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• 2015

It is necessary to evaluate the effect of dredging and weir operation on the flow and long-term bed change for river management. Especially, large scale river treatment project, with dredging or weir installation and operation, can increase the instability of riverbed in tributaries as well as mainstream. This study focuses on the effect of weir installation and dredging on the long-term bed change in Nakdong river (Gangjeong- Goryeong Weir~Dalseong Weir) and its tributary (Geumho river). HEC-6 model has been used to analyze the amount of long-term bed change and sediment transport resulted from the river treatment including dredging or weir installation. From the result, it was concluded that a large scale river treatment can accelerate and increase the long-term bed change both in mainstream and tributary.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.47 no.2
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• pp.108-115
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• 2002

The effects of long-term fertilization on soil properties and nutrient availability are not well documented for cassava cultivation in Vietnam. In 1990, a field research plots were established with 12 treatments to test the effect of different rates of nitrogen (N), phosphorus (P) and potassium (K) on soil properties in Acrisols at Thai Nguyen University in Northern Vietnam. In 1999, composite soil samples (0 to 20cm depth) were collected from eight selected plots for measurements of nutrient supply rates by ion exchange membrane probes and for growing corn and canola in a growth chamber with and without added lime. Generally, long-term nitrogen (N) fertilization increased available N supply rates but decreased available potassium (K) and magnesium (Mg). Long-term phosphorus(P) applications increased canola N, calcium (Ca) and Mg uptake. Canola P uptake increased with increased P rates only when lime was added. Long-term K applications increased canola N, K, Ca, Mg uptake but only significantly increased corn N uptake. Liming significantly increased uptake of N, P, K, Ca, Mg and S for both corn and canola. However, N $H_{4-}$N, K and Mg soil supply rates were reduced when lime was added, due to competition between Ca from the added lime and other nutrients.

• Proceedings of the Korean Geotechical Society Conference
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• 1999.11c
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• pp.21-38
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• 1999

Engineering properties of most polymers used in geosynthetics such as geogrid can be degraded by the chemical reaction (e.g., oxidization, ultraviolet rays, hydrolysis etc.), chemical and mechanical load, microorganism, and so on. In addition, polymer can be damaged by the compaction during construction, and the characteristic of tensile strength of polymer can be changed by the long-term creep effect. In this study, engineering properties of flexible geogrids which are manufactured by weaving/knitting the high-tenacity polymers such as polyester formed in a very open, grid-like configuration, coated with any one of a number of materials (e.g., PVC, latex, etc.), are investigated. Through the analysis of test results, the durability and the long-term design tensile strength of flexible geogrids are evaluated.

• Journal of the Korean Society of Clothing and Textiles
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• v.33 no.4
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• pp.543-553
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• 2009

The purpose of this study is to identify the dimensions of beauty service benefit and to examine the effect of beauty service benefit on consumer's long-term relationship through consumer satisfaction. Beauty service benefit consists of three dimensions: emotional benefit, technical benefit and functional benefit. The aforementioned three dimensions of beauty service benefits have positive effects on consumer satisfaction. The effort of relationship continuity was a moderating variable among beauty service benefits, consumer satisfaction, and long-term relationship orientation. The findings of this study are expected to be used for developing and applying the program of consumer relationship management.

• Journal of Advanced Navigation Technology
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• v.16 no.3
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• pp.553-561
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• 2012

The study has focused on relationship benefits provided for customers in terms of relationship marketing and empirically analyzed the influence of components of relationship benefits in air service. Those components are, for example, social, psychological, economic and special treatment benefits on long-term orientation of relationship. Also, ultimately, this study aims to suggest marketing strategies and relevant implications for airlines. In conclusion, psychological and special treatment benefits were found to have influence on long-term orientation of relationship.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.10a
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• pp.211-216
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• 2000

Numerical studies were carried out to develop the moment magnifier method for long-term behavior of flat plates, subjected to combined in-plane compressive and transverse loads. Nonlinear finite element analyses were performed for the numerical studies. Through the numerical studies, the long term behavior of the flat plate subjected to uniform or nonuniform floor load was investigated, and creep effects on the degradation of strength and stiffness of the slabs were examined. As the result, the creep factor was developed to epitomizes with creep effect on the flat plate. The moment magnifier method using the creep factor was developed for long-term behavior of flat plates. Also, the design examples are shown for verification of proposed design method.

• Structural Engineering and Mechanics
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• v.8 no.6
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• pp.531-546
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• 1999

The paper presents an experimental and theoretical study on the influence of steel fibers and longitudinal tension and compression reinforcements on immediate and long-term deflections of high-strength concrete beams of 85 MPa (12,300 psi) compressive, strength. Test results of eighteen beams subjected to sustained load for 180 days show that the deflection behavior depends on the longitudinal tension and compression reinforcement ratios and fiber content; excessive amount of compression reinforcement and fibers may have an unfavorable effect on the long-term deflections. The beams having the ACI Code's minimum longitudinal tension reinforcement showed much higher time-dependent deflection to immediate deflection ratio, when compared with that of the beams having about 50 percent of the balanced tension reinforcement. The results of theoretical analysis of tested beams and those of a parametric study show that the influence of steel fibers in increasing the moment of inertia of cracked transformed sections is most pronounced in beams having small amount of longitudinal tension reinforcement.

• Journal of the Korea Society of Computer and Information
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• v.24 no.7
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• pp.143-151
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• 2019

The purpose of the present study was to investigate the causal relationships between social support, spiritual well-being, and depression among family caregivers caring for the elderly in need of long-term care. Based on previous studies and theoretical backgrounds, a mediation research model including the aforementioned variables was proposed. A total of 383 family caregivers from 25 long-term care facilities in G Metropolitan City were included in the present study and hierarchical regression was used. The primary results were as follows. First, family caregivers' social support was negatively associated with depression. Second, family caregivers' social support was positively associated with spiritual well-being. Third, family caregivers' spiritual well-being was negatively associated with depression. Fourth, social support was positively associated with spiritual well-being, which was related to weaker depression among family caregivers. Finally, theoretical implications of these findings and recommendations for policy and practice were also discussed.

• Steel and Composite Structures
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• v.42 no.5
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• pp.671-683
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• 2022

To investigate and predict the long-term time-dependent behavior, such as creep, shrinkage, and relaxation of PS strands, and prestress loss in prestressed steel-concrete composite beams, named Precom, full-scale tests were conducted and the collected data were compared with those obtained from the two proposed analytical models. The combined effective modulus method (EMM)-empirical model proposed with a flowchart considered the creep effect to determine the prestress loss. Conversely, the age-adjusted effective modulus method (AEMM) with CEB-FIP equation was developed to account for the concrete aging. The results indicated that the AEMM with CEB-FIP model predicts the long-term behavior of Precom effectively.