• 유통과학연구
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• 제17권5호
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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.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2015년도 학술발표회
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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.

• 한국태양에너지학회 논문집
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• 제37권3호
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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.

• 한국자동차공학회논문집
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• 제3권5호
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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.

• 스마트미디어저널
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• 제13권1호
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• pp.67-75
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• 2024

최근 검색사이트의 인공지능 기반 제품 추천 서비스의 도입이 늘어나고 있는 추세이다. 본 연구는 인공지능 기반 제품 추천에 대한 소비자의 반응 및 광고효과를 이해하고자 브랜드의 특성과 소비자 성향에 따라 AI 상품추천에 대한 소비자의 반응이 어떻게 달라지는지 연구하였다. 본 연구는 대학생을 대상으로 실험연구를 진행하였으며 브랜드 명성(높음 vs.낮음)과 비교성향수준(높음 vs.낮음)이 AI가 추천한 상품의 브랜드태도 및 구매의향에 미치는 영향을 검증하였다. 본 연구 결과 브랜드 명성과 비교성향 수준은 AI가 추천한 상품의 브랜드 태도에 영향을 미치는 것으로 나타났다. 본 연구의 결과는 AI 상품추천 서비스에 대한 소비자의 반응을 보다 세부적으로 이해하고 효과에 영향을 미치는 잠재적 요인들을 검증하였으며 AI를 활용한 서비스 전략 수립에 유용한 시사점을 제공하는 데 의의가 있다.

• 대한본초학회지
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• 제27권1호
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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.

• 동의신경정신과학회지
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• 제9권2호
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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.

• 동의신경정신과학회지
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• 제9권2호
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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.

• 대한한방내과학회지
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• 제27권4호
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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.

• 한국콘텐츠학회논문지
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• 제16권12호
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• pp.574-590
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• 2016

본 연구는 SNS에서의 다양한 형태의 사회 비교 경험들이 SNS 이용자들의 삶의 만족도에 어떤 영향을 미치는 지를 살펴보고자 하였다. 이를 위해, SNS에서의 사회 비교 경험 유형으로서 상향 대조, 상향 동일시, 하향 대조, 하향 동일시 등 4가지를 도출하여 이들 경험 유형들이 SNS 이용자의 삶의 만족도에 어떤 영향을 미치는 지를 살펴보았다. 또한 영향 과정에서 인구 통계학적 요인들, SNS 이용 시간, 오프라인 사회자본 및 사회비교 지향성 등을 통제 변인으로서 고려하였으며, 사회 비교 경험들과 삶의 만족도 관계에서 사회비교 지향성의 조절 효과 역시 살펴보았다. 자료 수집을 위해선 온라인 설문을 이용하였고, 수집된 자료는 위계적 회귀 분석을 통해 분석되었다. 분석의 결과 연령과 혼인 여부가 삶의 만족도에 영향을 미치는 것으로 나타났으며, 가족 및 관심사가 맞는 클럽/단체 활동 참여 정도가 삶의 만족도와 연관이 있는 것으로 나타났다. 더불어 분석 결과에 따르면 4가지 사회 비교 경험 유형 중 상향 대조와 상향 동일시만이 삶의 만족도에 영향을 미치는 것으로 나타났으며, 사회 비교 지향성은 상향 동일시 경험과 삶의 만족도 관계에서만 조절 효과를 보이는 것으로 나타났다. 연구 결과를 바탕으로, SNS에서의 사회 비교 경험들을 이해함에 있어 기존 연구와는 다른 새로운 시각들이 필요함에 대해서도 또한 논의되었다.