• 대한산업공학회지
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• 제29권4호
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• pp.321-333
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• 2003

Although manufacturing cost is a major part of profit in a company, it is difficult to be calculated by an analytic method. Besides, the manufacturing cost gained by simple financial structure dose not have an important meaning in market place. Therefore, an analytic method of computing the manufacturing cost is very necessary in manufacturing system. In this study, we suggested the direct cost analysis model which are able to measure accurate cost analysis of product in manufacturing system. The direct cost analysis model is made up of directly used expenditure for unit product. Also, system performances are put in the manufacturing cost analysis model so that it could be possible to analyze the change of manufacturing cost as system performances change. At the end of this paper, it verifies its relevancy and practicality of the suggested direct cost analysis model through the case study, using real data for direct labor cost.

• 산경연구논집
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• 제9권5호
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• pp.17-24
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• 2018

Purpose - Through the analysis of the characteristics of overseas direct purchase websites and the relevant empirical analysis of the quality of service delivery, the activated theory/strategy and significance of the overseas direct purchase are sorted out. Research design, data, and methodology - In the process, to make more effective analysis, several analysis tools and analysis programmes are used, IBM SPSS Statistics 23.0 and IBM SPSS AMOS 23.0. Results - Among the characteristics of the overseas direct purchase website, the security, convenience and information provided by the overseas direct purchase have already had a positive impact on the satisfaction. The quality of the delivery service is composed of four factors: rapidity, reliability, intimacy and correctness. The research results indicate that the satisfaction level has a positive impact on the re-purchase intention. Conclusions - The significance of this study has the characteristics of overseas direct purchase sites which have confirmed that security convenience and intelligence availability have a positive impact on satisfaction and re-purchase intent. It is important to have a safe and reliable access to shopping sites on overseas direct purchase sites. In the characteristics of overseas direct purchase sites, the interaction have no positive effect on satisfaction and re-purchase intention.

• 유통과학연구
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• 제14권11호
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• pp.91-102
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• 2016

Purpose - The objectives of this study are as follows. First, it aims to suggest an analysis model that has integrated the relationship between the two factors and export performance and conduct an empirical analysis of the factors. Second, the study seeks to analyze the mediating effect by setting direct channel governance as a specific activity to connect market orientation, a cultural asset, to export performance. Third, through these analyses, the study intends to apply the relationship between market orientation and direct channel governance that the existing studies have failed to observe comprehensively on SMEs in Korea. Based on these analyses, the study expects to expand the discussion of previous researches by analyzing the mediating effect of direct channel governance. Research design, data, and methodology - This study developed a model that has integrated market orientation, direct channel governance, and export performance. It established 7 hypotheses including the mediating effect of direct channel governance. Market orientation was consisted of customer orientation and competitor orientation, and 4 latent variables were measured by 18 questions. LISREL, an analysis tool of structural equation model, was used for hypothesis test and there were 183 sample for analysis. Results - The analysis results showed that customer orientation has a positive influence on direct channel governance, but competitor orientation did not have a statistically significant effect. On the contrary, export performance showed an opposite result. That is, customer orientation did not have any influence but competitor orientation had a significant influence on export performance. It was also confirmed that there was a significant influence in the relationship between channel governance and export performance. According to the analysis of mediating effect, direct channel governance had a full mediating effect between customer orientation and export performance. Conclusions - The study results demonstrated that it is important to build a direct channel governance on the export SMEs in Korea, especially since the direct channel governance complements the influence of customer orientation that does not directly influence export performance among market orientation activities. This implies that Korean export SMEs must strive to build an effective direct channel governance.

• 유통과학연구
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• 제18권2호
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• pp.29-38
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• 2020

Purpose: Finding out major factors on motivation to purchase Korean products through the analysis of overseas direct purchase in China and through empirical analysis, strategic implications or specific action plans and significance of the overseas direct purchase are investigated out. Research design, data, and methodology: In the process, to make more effective analysis, several analysis tools and analysis programms are used, IBM SPSS Statistics 23.0 and IBM SPSS AMOS 23.0 with 264 questionnaires. Conclusions: Among the factors of the overseas direct purchase, all variables (product diversity, brand image, information validity, convenience, easy payment) are available on satisfaction and repurchase intention. They have affirmative impacts on the satisfaction and repurchase intention. And the satisfaction has a positive impact on the repurchase intention. The brand images and the product diversity of Korean products can induce consumers to visit again and improve managerial performance. In the future, the brand image and ways of purchasing behaviors improve the truthfulness of consumers. Results: The significance of this study is to find out 5 key factors through overseas direct purchase. And we should try to apply the implications drawn from the findings as marketing strategy. So finally we should focus on widening, enlarging and enriching China market gradually.

• 한국정보전자통신기술학회논문지
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• 제12권3호
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• pp.192-200
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• 2019

본 연구에서는 해외직접구매와 해외직접판매와 거시경제변수 간의 인과관계를 도출하고 공적분 검정, 충격반응을 이용하여 인과관계를 실증분석하였다. 실증분석에 이용된 모형은 벡터오차수정모형(vector error correlation model)이고, 거시경제변수인 소비자물가지수, GDP를 이용하였고, 전자상거래변수로는 해외직접구매, 해외직접판매, 온라인쇼핑액을 이용하였다. 실증분석결과에 따르면, 해외직접구매는 소비자물가지수와 인과관계가 있고, GDP는 해외직접판매, 온라인쇼핑액과 각각 인과관계가 있는 것으로 나타났다. VECM의 충격반응분석 결과에 따르면, 해외직접구매는 소비자물가지수와 GDP에는 긍정적인 영향을 미치지만, 해외직접판매는 소비자물가지수와 GDP에 부정적인 영향을 미치는 것으로 나타났다. 그리고 해외직접구매와 해외직접판매 모두 온라인쇼핑액에 부정적인 영향을 미치지만, 해외직접구매가 온라인쇼핑액에 더 큰 부정적인 영향을 미치는 것으로 나타났다.

• Journal of Preventive Medicine and Public Health
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• 제56권4호
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• pp.303-311
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• 2023

Traditional mediation analysis, which relies on linear regression models, has faced criticism due to its limited suitability for cases involving different types of variables and complex covariates, such as interactions. This can result in unclear definitions of direct and indirect effects. As an alternative, causal mediation analysis using the counterfactual framework has been introduced to provide clearer definitions of direct and indirect effects while allowing for more flexible modeling methods. However, the conceptual understanding of this approach based on the counterfactual framework remains challenging for applied researchers. To address this issue, the present article was written to highlight and illustrate the definitions of causal estimands, including controlled direct effect, natural direct effect, and natural indirect effect, based on the key concept of nested counterfactuals. Furthermore, we recommend using 2 R packages, 'medflex' and 'mediation', to perform causal mediation analysis and provide public health examples. The article also offers caveats and guidelines for accurate interpretation of the results.

• 대한조선학회논문집
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• 제42권4호
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• pp.421-426
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• 2005

Scattering center extraction schemes for radar cross section reduction of large complex targets, like warships, was developed, which are an 1-D radar image method(range profile), and a direct analysis based on an object precision method. The analysis result of partial dihedral model shows that the presented direct analysis method is more efficient than the 1-D radar image method for scattering center extraction of interested targets, in terms of radar cross section reduction design, not signal processing. In order to verify the accuracy of the direct analysis method, a scattering center analysis of an naval weapon system was carried out, and the result was coincident with that of another well-known RCS analysis program. Finally, an analysis result of RCS and its scattering center of an 120m class warship-like model presented that the direct analysis method can be an efficient and powerful tools for radar cross section reduction of large complex targets.

• 한국빅데이터학회지
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• 제5권1호
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• pp.41-54
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• 2020

최근 인터넷 채널의 확장, 금융 기술과 정보통신기술이 발달하면서 해외직접구매가 확대되었다. 해외직접구매는 비교적 저렴한 가격의 제품과 국내에서 구하기 힘든 제품을 제공함으로써 소비자에게 가격, 희소성 면에서 유리한 위치를 선점하고 있지만, 아무래도 국내에서 구매하는 것보다 배송, 제품, A/S·환불 면에서 소비자 불만족이 발생할 확률이 높다. 따라서 본 연구에서는 해외직접구매 활성화에 따른 소비자 불만족을 분석하고 해외직접구매 문제점의 개선 방안을 연구하였다. 연구 방법으로 한국소비자원, 관세청, 한국무역협회에서 여러 통계자료를 수집했고, 탐색적 자료 분석 기법(EDA)을 활용해 분석하였다. 분석 결과 소비자는 해외직접구매 관련 정보에 대해 잘 알지 못한다는 것과 구매 유형에 따라 소비자 불만 유형이나 정도가 달라짐을 확인하였다. 따라서 본 연구는 EDA를 활용하여 해외직접구매의 전체적인 현황과 소비자 불만족을 파악하고 이에 따른 해외직접구매의 개선 방안을 제시함으로써 해외직접구매의 활성화 방향을 제시하는데 시사점이 있다.

• 한국유기농업학회지
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• 제21권4호
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• pp.501-522
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• 2013

This study has performed comparative analysis on benefit indicators in agricultural irrigation and drainage project cases between Korea and Japan. The irrigation and drainage project with publicity should do economic analysis of direct benefit factors as well as indirect benefit factors. However, traditional economic evaluations are used that benefit factors are lack of consistency and focused on direct benefits. Therefore, the purpose of this study was to develop indicators for the economic evaluation of irrigation and drainage projects. We conducted a case study between Korea and Japan. The resulting benefit factors was divided into direct factors and indirect factors. The direct benefit factors were increase in income, cost savings. The indirect benefit factors were protection of property due to flooding, agricultural promotion, aesthetic improvement. The implications of this study are that the indicators of economic analysis can be evaluated and easily applied. Moreover, these indicators could promote the feasibility of economic analysis.

• 대한전기학회논문지
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• 제45권4호
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• pp.474-483
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• 1996

In this paper, as a part of the method improving stability, the load-flow calculation in D.C. power system and the models for stability analysis are studied with A.C-D.C. interconnected power systems transmission performed. Moreover, the theory is established in relation to each control method of D.C. power systems. Then the stability of A.C-D.C.interconnected power systems is compared and considered by the way of dividing the operating control method of the rectifier inverter converter into ACR-AVR, APR-A.gamma.R, A.alpha.R-ACR. The dynamics characteristic of terminal voltage, frequency, active-reactive power and rotor angle of the generator with disturbances and load fluctuations is considered. In addition, the characteristic of direct voltage, direct current, power and control systems. From this the comparative analysis of the direct current control method, the possibility of the stability analysis of A.C.-D.C. interconnected power system is considered. (author). refs., figs., tabs.