• Journal of Distribution Science
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• v.17 no.5
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• pp.39-50
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• 2019

Purpose - The purpose of our study is to provide an understanding of the relationships among consumer attention to social comparison information (ATSCI), consumer ethnocentrism (CET), national identity (NI), and consumer purchase intention to domestic brands (PIDB). Drawing on the social comparison theory (SCT) and social identity theory (SIT), we developed a model that is empirically testable and explains consumer behavior of domestic brands and products. Research design, data, and methodology - The conceptual framework was tested with primary data collected through a survey in China. Structural equation modeling was employed to test hypotheses. Results - The results from empirical analyses indicated that the ATSCI positively influenced CET and NI, and CET and NI affect consumer PIDB. In addition, the mediating effects of CET and NI on the relationship between ATSCI and PIDB were identified. Nonetheless, little direct impact of ATSCI on PIDB was reported. Conclusions - We suggested that international marketers use given information to attract consumer attention and develop appropriate promotions, especially for Chinese young generations that would pay much attention to social comparison information in their purchase decisions. Our study originally connected one socio-psychological antecedent, ATSCI, with CET and NI and estimated the relationships among the three antecedents and their effects on PIDB in order to predict consumer behavior in China.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.522-522
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• 2015

In this study, the effect of threshold applied to the radar rain rate on the comparison of the radar and rain gauge rain rate was theoretically examined. The result derived was also evaluated theoretically, using the Bernoulli random field, and empirically, using Mt. Kwanak weather radar data. The results are summarized as follows. (1) In the application to the Bernoulli random field, it was found that the comparison of the radar and rain gauge rain rate with threshold does not introduce any systematic bias. (2) The same results could also be derived in the application to Mt Kwanak weather radar data. In all cases with several radar bin sizes and thresholds considered, the bias was estimated to be far less than 10% of the mean of the rain gauge rain rate. (3) However, in the comparison with threshold applied to both the radar and rain gauge rain rate, the bias was estimated to be higher than 20%. That is, the systematic bias was introduced. This result indicates that the comparison with threshold applied to both the radar and rain gauge rain rate should not be used.

• Journal of the Korean Solar Energy Society
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• v.37 no.3
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• pp.23-32
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• 2017

This paper presents losses comparison and analysis results for different types of fault modes of grid-connected photovoltaic system generated for long-term operation. The approach of losses comparison and analysis by faults is to identify relationship between measured and estimated values of five loss factors which are quantified from irradiance to system output power. This paper presents the symptom results for faults such as snow, shading, sensor defect, blackout, soiling and so on from three years or more monitored data. These results will indicate that it is useful to develop fault detection and diagnosis tool to enhance capacity factor and save operation and maintenance cost of grid-connected photovoltaic system in the field.

• Transactions of the Korean Society of Automotive Engineers
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• v.3 no.5
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• pp.17-23
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• 1995

A numerical analysis on engine coolant is made by the use of FVM based general purpose 3 dimensional Navier-Stokes solver, TURB-3D. Numerical solutions are verified by comparison with the experimental data of Lotus model. The results show a good qualitative as well as quantitative comparison. Coolant flow rate control is attempted through adjusting the cross section area of passage base on the results of an original coolant passage. It is concluded from the results that the flow rate control is possible as attempted, and thus can be used in the real engine design.

• Smart Media Journal
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• v.13 no.1
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• pp.67-75
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• 2024

The purpose of this research is to investigate consumer responses to production recommendations by AI. In order to test hypotheses of this study, we conducted experimental study that was a 2(Brand reputation: high vs. low) X 2(Social comparison: high vs. low). The results of this study showed the interaction effects of brand reputation and social comparison on brand attitude. Based on the results, we provide theoretical implications to extent the existing research regarding product recommendations. Moreover, the results of this study provide some practical implications and a new aspect about AI recommendations.

• The Korea Journal of Herbology
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• v.27 no.1
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• pp.27-34
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• 2012

Objectives : This study was performed to compare the preventive effect of water extracts from Saponariae Vaccariae Semen(SVS) and Melandryi Firmi Herba(MFH) on hyperlipidemia and liver damage induced by alcohol. Methods : Except for the normal group, I fed rat on 25% alcohol for 55 days. And each extract was administrated for the same period. I measured the serum component in rat's blood, body weight and weight of liver. Results : At first, I observed effects of SVS and MFH on hyperlipidemia induced by alcohol. SVS and MFH group didn't show the significant decrease of total cholesterol in comparison with those of the control group. SVS and MFH group showed the significant increase of HDL-cholesterol in comparison with those of the control group. SVS group showed the significant decrease of triglyceride in comparison with those of the control group, but MFH group didn't show the significant decrease of triglyceride in comparison with those of the control group. SVS group showed the significant increase of body weight in comparison with those of the control group at 4weeks and 8weeks. But, MFH group didn't show the significant changes of body weight in comparison with those of the control group at 4weeks and 8weeks. By the way, SVS group showed the significant decrease of triglyceride in comparison with those of MFH group. SVS group showed the significant increase of body weight in comparison with those of MFH group at 8weeks. At second, I observed effects of SVS and MFH on liver damage induced by alcohol. SVS and MFH group showed the significant decrease of AST(aspartate aminotransferase), ALT(alanine aminotransferase), ALP(alkaline phosphatase) and LDH(lactate dehydrogenase) in comparison with those of the control group. SVS group showed the significant increase of liver weight in comparison with those of the control group, but MFH group didn't show the significant increase of liver weight in comparison with those of the control group. By the way, SVS group showed the significant increase of liver weight in comparison with those of MFH group. Conclusions : Reviewing these experimental results, it suggests that water extracts from SVS and MFH have pharmaceutical preventive efficacy on hyperlipidemia and liver damage induced by alcohol. Therefore further additional study should be conducted to elucidate the pharmaceutical efficacy of these in depth.

• Journal of Oriental Neuropsychiatry
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• v.9 no.2
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• pp.71-85
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• 1998

This study was to investigate the effects of GONGCHENGWHAN(GCW) on the blood and brain tissues of aged rats. For the experiment, the aged rats were divided into three groups : Non treated group (NC), distilled water feeding group(PC), GCW feeding group(GCW).Each group was treated as the procedure for ten days before administration of scopolamine. After this treating, we injected scopolamine to Pc and GCW group their blood cell(WBc, RBC, platelet), blood serum (BUN, creatinine, glucose, uric acid), erythrocyte hemolysis, and the activities of cholinesterase as well as measured the amounts malondialdehysde in the blood serum, catalase, and SOD in the brain tissue.The main results of this investigation are as follows.1. In respect of the number of WBC, GCW group exhibited the administrated incerase in comparison with PC. In respect of the number of RBC· and platelet, however, the changes was not administrated.2. In respect of the number of BUN, creatinine, glucose and uric and the blood, GCW group exhibited the administrated decrease in comparison with PC.3. In respect of erythrocyte hemolysis, GCW group exhibited the administrated repression in comparison with PC.4. In respect of the activity of cholinestease in the blood serum, GCW group exhibited the administrated improvement in comparison with PC.5. In respect of the amounts of malondialdehyde in the blood serum, GCW group exhibited the administrated dexrease in comparison with PC.6. In respect of the activity of catalase in brain tissue, GCW group didn't exhibit the administrated change in comparison with PC7. In respect of the activity of SOD in brain tissue, GCW group exhibited the administrated improvement in comparison with PC.Results of this study indicates that GCW improves the activities of cholinesterase and SOD, but represses the formation of the free radical and the accumulation of the antioxidant materials such as MDA. It implies that GCW has some effects on antiaging.

• Journal of Oriental Neuropsychiatry
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• v.9 no.2
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• pp.53-69
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• 1998

This experiment was done to investigate the effects of GAMIKWYBICHONGTANG(GKCT) on the blood and brain tissues of aged rats. The experimental groups were divided into three groups and treated as follows for ten days before administration of scopolamine ; Non treated group(Normal), Distilled water feeding group (Control), GKCT feeding group(GKCT). After feeding them each, Control and GKCT were injected scopolamine for 5 days.We examined the changes of blood cell(WBC, RBC, platelet), blood serum(BUN, creatinine, glucose, uricacid), erythrocyte hemolysis, the activities of cholinesterase, and measured the amounts of malondialdehyde of the blood serum and checked the activities of catalase, SOD of the brain tissues.The results were as follows;1. GKCT showed significant increase of the number of WBC, but those of RBC and platelet didn't significantly changed in comparison with Control.2. GKCT showed significant decrease of BUN, creatinin, glucose, uric acid in blood serum in comparison with Control.3. Erythrocyte hemolysis were decreased significantly in GKCT in comparison with Control.4. About the activity of cholinesterase of blood serum, GKCT showed no significant increase in comparison with Control.5. In TBA reaction to measure the amount of MDA, oxidant material of blood serum of rats, GKCT showed significant decrease in comparison with Control.6. About the activity of catalase of brain tissue, GKCT showed no significant change in comparison with Control.7. About the activity of SOD of brain tissue, GKCT showed significant increse in comparison with Control.According to the above results, GKCT can reduce the formation of free radical and the accumulation of antioxidant materials, it is suggested that GAMIKWYBICHONGTANG(GKCT) has some effects on antiaging. It is also needed more following studies.

• The Journal of Internal Korean Medicine
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• v.27 no.4
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• pp.879-887
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• 2006

Objectives : This study was done to investigate the effects of JMT on hypothyroidism in rats. Materials and Methods : After pretreatment with 50mg/kg thiouracil for 30 days, the experimental group was treated with 0.56g/kg JMT orally and the control group was treated with 0.56g/kg of normal saline instead for 20 days. The various indicators related to hypothyroidism were measured, such as T3-uptake content, T3 content, T4 content, TSH content, hematological values, enzyme activity, total cholesterol content, Na+ content change in the serum and body weight of rats induced by thiouracil. Results : The JMT-treated group showed significant increase in comparison with the control group in serum T3-uptake and T4 content. The JMT-treated group also showed significant decrease in comparison with the control group in serum TSH content. However, the JMT-treated group did not show significant increase in comparison with the control group in serum T3 content. The JMT-treated group showed significant increase in comparison with the control group in serum RBC. The JMT-treated group showed significant decrease in comparison with the control group in serum CPK, ALP, LDH content and serum total cholesterol content. The JMT-treated group did not show significant increase in comparison with the control group in serum Na+ content. The JMT-treated group showed significant decrease in comparison with the control group in body weight. Conclusions : These results suggest that JMT is useful in treatment of hypothyroidism.

• The Journal of the Korea Contents Association
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• v.16 no.12
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• pp.574-590
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• 2016

This research aims to examine the effects of various types of social comparison in SNS on users' life satisfaction. For this, this research posited four types of social comparison including upward contrast, upward identification, downward contrast and downward identification that might affect SNS users' life satisfaction. Several other factors including demographic variables, SNS usage time, offline social capital and social comparison orientation as control variables were taken into account and the moderating effects of social comparison orientation in the relationships between four types of social comparison and users' life satisfaction was also examined. An online survey was employed for collecting data and the date collected were analyzed with hierarchical regression analysis. The results showed that ages and marriage status have influences on SNS users' life satisfaction. It was proven that the degrees to which SNS users participate in family activities and club/group activities in which they are interested have correlations with their life satisfaction. The findings also revealed that only upward contrast and upward identification among four types of social comparison have influences on the life satisfaction and there is the moderating effect of social comparison orientation on the relationship between upward identification and life satisfaction. On the basis of the results, the necessity of new perspectives in understanding social comparison experience in SNS as compared to the existing literature were discussed.