• Journal of the Korea Concrete Institute
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• v.11 no.3
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• pp.89-100
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• 1999

The purpose of this study is to develop an analytic model of the concrete column strengthened with laminated CFS, and to provide a basic guideline for the strengthening design by CFS considering orthotropic properties of laminate. In this study, an analytical stress-strain model of laminated CFS is presented based on Tsai-Hill failure criterion. This model has been implemented in an algorithm which can evaluate the confinement effect of CFS. Through this algorithm, the stress-strain relationship of confined concrete is obtained and compared with experimental results of other studies. Using the constitutive relationships, section analyses of concrete column strengthened with CFS are done, and load-moment and load-curvature interaction curves are obtained. In addition, the strengthening effects of CFS according to various laminated angles are analyzed. Analytical results show that the strengthening effects of the strengthened concrete columns are significantly different in compression, flexure, and ductility according to the laminated ways. In compressive direction of principal stress shows the superiority, where an in flexural strengthening effects, [0/90]s does. In the aspect of ductility, [90]s shows the best effect.

• Journal of the Korea Society of Computer and Information
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• v.25 no.1
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• pp.177-185
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• 2020

The purpose of this study is to analyze the effect of patient's perceived medical quality of service on satisfaction, hospital reputation, and loyalty to provide a strategic way to increase profitability and competitiveness of hospitals by preventing the departure of existing customers and promoting reuse. AMOS 20.0 was used for structural model analysis and identification factor analysis and SPSS 21.0 program was used for empirical analysis. As a result, the quality of medical service had a significant effect on satisfaction and reputation, and the quality of medical service had the greatest effect on satisfaction. Satisfaction has a positive effect on reputation and loyalty and is an important factor in determining loyalty. Recognizing the importance of improving quality of service and building relationships with patients should be prepared for strengthening relationships.

• Earthquakes and Structures
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• v.15 no.3
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• pp.275-283
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• 2018

Seismic strengthening is essential for existing bridge piers which are deficient to resist the earthquake. The concrete and CFRP jackets with a bottom-anchoring method are used to strengthen railway bridge piers with low reinforcement ratio. Quasi-static tests of scaled down model piers are performed to evaluate the seismic performance of the original and strengthened bridge pier. The fracture characteristics indicate that the vulnerable position of the railway bridge pier with low reinforcement ratio during earthquake is the pier-footing region and shows flexural failure mode. The force-displacement relationships show that the two strengthening techniques using CFRP and concrete jackets can both provide a significant improvement in load-carrying capacity for railway bridge piers with low reinforcement ratio. It is clear that the bottom-anchoring method by using planted steel bars can guarantee the CFRP and concrete jackets to work jointly with original concrete piers Furthermore, it can be found that the use of CFRP jacket offers advantages over concrete jacket in improving the energy dissipation capacity under lateral cyclic loading. Therefore, the seismic strengthening techniques by the use of CFRP and concrete jackets provide alternative choices for the large numbers of existing railway bridge piers with low reinforcement ratio in China.

• Proceedings of the Korea Concrete Institute Conference
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• 2005.05a
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• pp.35-38
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• 2005

Carbon fiber sheets are widely used for strengthening the deteriorated RC structures. However most studies on the strengthening method of RC structures with carbon fiber sheets are concerning static problems. The purpose of this experimental study is to present the basic data on fatigue behaviors of. RC beams strengthened with carbon fiber sheets. The experimental parameters of this study are ; 1) the existence of U-shaped carbon fiber sheets at the ends for anchoring, 2) the number of carbon fiber sheet layers in strengthening the RC beams, 3) the load levels of $60\%\~90\%$ of the static bending moment strength, which is obtained form the static tests. Experimental results are estimated from the relationships of load level, displacement, number of repeated load and released energy. It is concluded that U-shaped carbon fiber sheets for end anchoring is very effective and the beams strengthened with one layer of carbon fiber sheet have longer fatigue life than that with three layers.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.1200-1204
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• 2009

Success or failure depends on the customer relationships from information services. Recently, as strengthening the customer relationships, marketing with the customer relationships through the web-site is being important factor. In the web-site, applying the service brand or the sense of community in online is the core. In the order to apply the sense of community in online to KISTI's Scent web-site, it is operated KISTI's Scent supporters and proposed the management of customer group plans.

• International Journal of Human Ecology
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• v.8 no.2
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• pp.85-97
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• 2007

The two main purposes of this study were to develop the 'Three Generation Family-Madang Program' and to examine its effects on enhancing family functioning and strengthening family relationships. The 'Three Generation Family-Madang Program' consisted of six sessions, each of which included various types of activities and educational materials to evoke interests of the three-generation family members. Subjects of this study were 21 triples, consisting of mothers and their family members, each for the experimental group and the control group, respectively. Mean, Standard Deviation, MANCOVA, and Discriminant Analysis were carried out for the data analyses. Our results showed that the 'Three Generation Family-Madang Program' was effective in enhancing family adaptability and family relationships. Our program focused on the parent generation to have a better understanding and a more positive perspective toward other family members, which would enhance family functioning and family relationships. Our program also received positive feedback from the grandparent and grandchildren generation participants.

• Journal of the Korean housing association
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• v.20 no.4
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• pp.59-68
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• 2009

A well-managed brand name (eg., Xi, the #, and I-Park) becomes brand equity. Brand equity affects the name value of brand in question and revenues. Elaborated researches regarding causes and effects forming brand equity, however, are hardly found. This research aims at: (1) examining the relationships among antecedents of apartment brand equity, brand equity components, and brand preference; and (2) proposing marketing strategies for strengthening apartment brand equity. The research method utilized is a survey. The research procedure consists of four steps as follows: (1) literature review; (2) hypotheses construction regarding antecedents and consequences of apartment brand equity; (3) measurement of apartment brand equity; and (4) covariance structure analysis of relationships between antecedents and consequences. This study found following positive relationships. First, the corporate image and apartment advertisement have a positive influence on brand-name recognition/image and perceived quality, consisting of apartment brand equity. Second, brandname recognition/image, perceived quality, and brand-name preference, consisting of apartment brand equity, have a positive influence on a brand affinity. Thus it is concluded that apartment brand equity is strengthened by means of: (1) the distinction of major factors, forming brand equity and enforcing it; and (2) the establishment and implementation of integrated marketing communication (IMC) strategies.

• The Journal of Korean Academic Society of Nursing Education
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• v.18 no.1
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• pp.131-140
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• 2012

Purpose: The purpose of this study was to investigate the degrees of and relationships between self-leadership, stress of clinical practice and self-disclosure in a group of college female students. Methods: Data were collected from 258 participants with self-report questionnaires in August, 2011. Results: There were significant differences in the level of 'self-leadership' depending on 'interpersonal relationships', 'application motivation', 'satisfaction with nursing as a major' and 'satisfaction in clinical practice'. And also there was significant difference in the level of 'self-disclosure' depending on 'interpersonal relationships'. But there was no significant difference in the level of 'stress of clinical practice' depending on general characteristics of participants. There were significant correlations between 'self-leadership' and self-disclosure, 'stress of clinical practice' and 'self-disclosure'. Conclusion: The results of this study suggest that it is needed to develop diverse programs that can reduce the stress of clinical practice by strengthening the capacity of self-leadership and self-disclosure.

• The Journal of Fisheries Business Administration
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• v.47 no.1
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• pp.31-45
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• 2016

This study aims to evaluate the status of implementation of bilateral-fishery order since the Korea-Japan Fisheries Agreement came into effect in 1999 in order to improve fisheries relationships between two countries. The agreement regulates bilateral-fishery order by the principle of the EEZ regime and mutual benefits among countries. (e.g. the mutual agreed fishing in EEZ and cooperation for resource management). However, the Korea-Japan Fisheries Agreement has some limitations such as reducing quotas of the mutual agreed fishing in EEZ, strengthening Japanese fisheries regulation, insufficient cooperation for fisheries management and joint countermeasures. In order to improve fisheries relationships between the two countries, it is imperative to rebalance quotas for the mutual agreed fishing in EEZ, to establish effective resource management systems in the Intermediate zone, to invigorate fisheries cooperation in the private sector, and to introduce new management systems by species over the all waters around East Asia. To accomplish such measures, it is necessary for Korean and Japanese governments to improve fisheries relationships based on trust and cooperation, achieving a win-win situation. Additionally, it is required to incorporate fisheries management among Korea, China, and Japan.

• Structural Engineering and Mechanics
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• v.56 no.3
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• pp.473-490
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• 2015

This paper presents the analysis of intermediate crack-induced (IC) debonding failure loads for reinforced concrete (RC) beams strengthened with adhesively-bonded fiber-reinforced polymer (FRP) plates or sheets. The analysis consists of the energy release and simple ACI methods. In the energy release method, a fracture criterion is employed to predict the debonding loads. The interfacial fracture energy that indicates the resistance to debonding is related to the bond-slip relationships obtained from the shear test of FRP-to-concrete bonded joints. The section analysis that considers the effect of concrete's tension stiffening is employed to develop the moment-curvature relationships of the FRP-strengthened sections. In the ACI method, the onset of debonding is assumed when the FRP strain reaches the debonding strain limit. The tension stiffening effect is neglected in developing a moment-curvature relationship. For a comparison purpose, both methods are used to numerically investigate the effects of relevant parameters on the IC debonding failure loads. The results show that the debonding failure load generally increases as the concrete compressive strength, FRP reinforcement ratio, FRP elastic modulus and steel reinforcement ratio increase.