• Korea Trade Review
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• v.46 no.3
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• pp.135-149
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• 2021

This study analyzes the economic effect through the use of the RCEP direct transport rules, and suggests the necessacity of logistics efficiency and policy alternatives. The advantage of the hub network has been widely applied to the international logistics system, but there is a limit in the FTA logistics system in which goods must be directly transported between two contracting parties. Therefore, based on the new RCEP direct transport rules and the theoretical review on the possibility of an FTA logistics hub, FTA logistics efficiency improvement is estimated. This study quantitatively estimated the economic effect of direct transportation, unlike the previous studies, which were limited to the analysis of judicial precedents or surveys. GTAP model was used through five scenarios according to the impact of the RCEP tariff cut and the FTA logistics hub establishment in Singapore or Korea. As a result of the analysis, Korea's trade volume increased by 0.38% of exports and 1.63% of imports, and RCEP would increase exports by 0.27% and imports by 0.42%. In particular, the establishment of an FTA logistics hub (0.71%) was found to have a greater effect on the improvement of terms of trade than a tariff cut (0.12%), confirming the necessity of establishing an FTA logistics hub in RCEP. As a policy proposal, the institutional support of the customs authorities for the use of RCEP, the expansion of the free trade area where BWT traded cargo can be stored, and the establishment of a system for issuing back-to-back certificates of origin with approved exporters.

• Korean Journal of Human Ecology
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• v.17 no.4
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• pp.649-660
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• 2008

The purpose of this study was to investigate the effect of mother's self-differentiation and marital conflict on child's behavior problems. For this purpose, the data were collected from 255 boys and 211 girls and their mothers using self-administered questionaire method by Amos 7.0 program. The results of the study was as follows: First, mother's self-differentiation had a negaitive direct effect on marital conflict. Secondly, marital conflict had a direct effect on boy's behavior problems only. Finally, mother's self-differentiation indirect effect on boy's behavior problems only.

• Journal of the Korea Society of Computer and Information
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• v.21 no.7
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• pp.77-83
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• 2016

This study aims to examine the effects of communication, mindfulness, and self-efficacy on the performance of online collaboration. The survey method was used for this study, and data from a total of 80 university students were used for the analysis. And structural equation model was used to analyze the data. The results of this empirical study is summarized as followings. First, communication and mindfulness have positive effect on self-efficacy. Second, communication do not have a direct effect on online collaboration performance but self-efficacy mediates the communication effect. Third, mindfulness do not have a direct effect on online collaboration performance but self-efficacy mediates the mindfulness effect. In this study, we suggested the importance of self-efficacy in building the performance of online collaboration.

• Journal of the Korea Concrete Institute
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• v.11 no.4
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• pp.83-93
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• 1999

This paper presents tension stiffening effect of Reinforced concrete members obtained from experimental results on direct tension and bending. From the direct tension test program, crack patterns were investigated with tension softening behaviors of concrete. Tension stiffening effects and losses of strain energy were, also, analyzed from the load-deflection curve with the main experimental variables such as concrete strength, yielding stress and reinforcement ratio of rebar. Tension stiffening effect of RC members increase linearly until the first crack initiate, decrease inversely with number of cracks, and then decrease rapidly when splitting cracks are happened. The tension stiffening effect is shown to be more important at the member of lower reinforcement than that of higher. Therefore, it necessitates to consider the tension stiffening effects at a nonlinear analysis. From the above analysis, a tension stiffening model of concrete is proposed and verified by applying it to bending members. From the numerical analysis by finite element approach, it is shown that the proposed model evaluates a little higher in analyzing at nonlinear region of high strength concrete, but, perform satisfactorily in general.

• The Korean Journal of Ecology
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• v.20 no.2
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• pp.83-94
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• 1997

Stomatal closing by ozone and water stress could reduce further ozone injury by inhibition of ozone influx to the tissue. Direct effect of ozone on stomata can be explained from two aspects which are a stimulation of stomatal closing and an inhibition of stomatal opening. An increase of $Ca^{2+}$ influx into cytoplasm by ozone could stimulate potassium efflux ion channel and inhibits inward potassium ion channels. By this mechanism ozone could induce stomatal closing. On the other hand, ozone could inhibit stomatal opening by affecting the activity of $H^{+}$ dependent ATPase of the membrane in guard cells. This would inhibit proton efflux which precede stomatal opening. It is also possible that ozone could reduce the activity of photosynthesis in guard cells which lead to affect the production of osmotically active sugars and energy. Indirect effect of ozone to stomata is through the effect of $CO_2$ elevation as a result of damage of the photozynthetic machinery. This indirect effect is slower than the direct effect.

• Journal of Biomedical Engineering Research
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• v.17 no.4
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• pp.525-534
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• 1996

We have developed a fast steady state free precession interferometry (SSFPI) technique which is useful for the fMRl (functional Magnetic Resonance Imaging). As is known, SSFP sequence with a suitable adjustment of Vadient (readeut) allows us to measure precession angle 6 which in tw relates to the field inhomogeneity. Combining the two pulses (known as FID and Echo) in FADE (Fast Acquisition Double Echo) sequence, for example, one can obtain the interference term which is directly related to the precession angle It has been known that a fast high resolution magnetic field mapping is possible by use of the modified FADE sequence or SSFPI, and we have attempted to use the SSFPI technique for the susceptibility-induced fMRl. When the method is applied to the susceptibility effect based functional magnetic resonance imaging (fMRl), it was found that the direct susceptibility effect measurement was possible without perturbations such as the backgrounds and inflow effect. In this paper, simulation results and experimental results obtained with 2.0 Tesla MRI system are presented.

• International Journal of Advanced Culture Technology
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• v.10 no.2
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• pp.281-291
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• 2022

Recenlty, the category of luxury wearbles has expanded and the relevant reseach has been scarce. The study tests whether the emotional mechanism regarding luxury wearables within e-tail affects luxury brand perceptions. Furthermore, it tests the moderation effect of gender in the mechanism. A total of 393 responses from U.S. populations were collected through an international research company with using online survey methods. In the results, the positive and direct effect of dominance on positive emotion was significant, and the positive emotion significantly increases perceived brand luxury. However, no direct effect of dominance was found on perceived brand luxury. The moderation effect of gender in the relationship between positive emotion and perceived brand luxury was found positive and significant, but the hypothesized moderation effect of gender was insignificant in the relationship between dominance and perceived brand luxury. Implications and study limitations are discussed.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2004.10a
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• pp.406-410
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• 2004

Rapid prototyping technologies have been widely used to reduce the development cost of new products. Manufacturing industries are nowadays characterized by the flexibility and complexity of products. This to due to the rapid development of manufacturing technology and diverse needs of customers. In this paper, the burning condition for getting casting product of resin pattern have been examined experimentally. In generally, the burning conditions have effect on the casting products. Using the direct casting. we directly producted the jewelry.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2003.11a
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• pp.210-214
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• 2003

The static and dynamic characteristics of HDD slider with ulta-low flying height are analyzed using Direct Numerical method with Boundary Fitted Coordinate System. The slip flow effect is considered using the Boltzmann equation solution in a form of the flow rate database. The air film stiffness and damping are evaluated by the small perturbation method.

• 한국노년학
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• v.30 no.4
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• pp.1077-1093
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• 2010

This study aims to examine the effects of health status on life satisfaction and depression and to examine the effect of spirituality and religious involvement on this relationship among Korean older persons. On the basis of the previous literature, we hypothesize that health status will have a direct effect on life satisfaction and depression, but that spirituality and religious involvement will moderate this effect in addition to having direct effects on life satisfaction and depression. In light of the different gender effects on all five variables (health status, spirituality, religious involvement, life satisfaction, and depression), we also examine the effects of gender on these variables. The data for this study came from the Hallym Aging Study conducted by the Hallym University Institute of Aging from February to March in 2005. Through stratified multi-stage random sampling, 1409 individuals aged 65 and over, who lived in Seoul and Chuncheon in Korea. Multiple regression analysis was used to investigate whether health status, gender, spirituality and religious involvement could predict life satisfaction and depression, and whether the direct relationships were moderated by interactions among these variables. We took three ordered regression steps to examine the hypothesis; the first step contained the covariates of age, education, living with spouse, monthly expense, living with adult children, and household income. We also entered gender into this step, so it would be adjusted for in relation to the other covariates. The second step then looked for any direct effects that gender, health status, spirituality, and religious involvement might have on life satisfaction and depression above and beyond the effects of the covariates. The third step contained interaction terms to look for further variance accounted for by indirect, moderating effects on life satisfaction and depression. The results showed that health status had a significant effect on both life satisfaction and depression, and religious involvement had a significant effect on depression. Spirituality and religious involvement were found overall to be a moderator, reducing the negative effect of health status on life satisfaction and depression. The direct effect of religious involvement and the moderating effects of spirituality and religious involvement on life satisfaction and depression are consistent with the view that spirituality and religion are resources and benefit the well-being of older adults.