• 한국경영과학회지
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• 제35권4호
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• pp.17-31
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• 2010

This study investigates two-stage return policy and recycling issues in an e-marketplace supply chain consisting of consumers, a retailer and a manufacturer. The manufacturer, a focal company in the e-marketplace supply chain, considers the recycling of commercial returns so offers the retailer a buy-back contract of which transfer payment consists of a wholesale price and a buy-back price. Then, under the given contract offer, the retailer determines a selling price and a return policy to control consumers' demand and return requests. We consider the retailer's opportunistic behavior and supply chain coordination issues based on the principal-agent paradigm. We compare the first-best and second-best optima and conduct comparative static analyses to evaluate the performance results of the buy-back contract and provide important managerial implications.

• 경영정보학연구
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• 제7권1호
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• pp.97-113
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• 2005

본 논문은 B2C 온라인 인터넷 쇼핑을 돕기 위한 비교쇼핑 에이전트를 설계하고 이를 구현하는데 목적을 두고 있다. 오프라인 상점에서 상품을 구매할 때 구매자가 판매원에게 제품의 제조사, 모델, 기능 또는 가격대를 설명하면 판매원이 해당 상품들을 보여주거나 카탈로그를 보여준다. 구매자는 상품의 기능이나 디자인을 비교하면서 적절한 상품군을 정한 후 가격을 비교한 다음에 가장 싼 곳에서 상품을 구입한다. 본 논문이 소개할 비교쇼핑 에이전트 ${\ulcorner}$PriceMeter${\lrcorner}$는 이러한 구매 행동에 최대한 부합 되도록 설계하였다. 구매자가 원하는 제조사, 가격, 기능 등을 선택한 후 검색하면 해당되는 상품들의 설명과 가격 정보들을 이 비교쇼핑 에이전트가 취합하여 보여준다. 마음에 드는 상품들을 카탈로그 양식으로 비교해서 볼 수도 있고, 프린트 양식으로 출력할 수도 있다. 특정 상품을 클릭하면 해당 상품을 판매하는 쇼핑몰들의 정보와 판매 가격을 함께 보여주며, 구매 아이콘을 클릭하면 쇼핑몰의 해당 상품 페이지로 이동할 수 있도록 하고 있다. B2C 전자상거래에 있어 비교쇼핑 에이전트의 구현과 확산은 구매자에게 더 많은 정보와 권한을 제공함으로써 소비자 중심의 유통경제를 한 걸음 앞당길 수 있다. 특정 상품에 대한 가격과 상세 정보를 일목요연하게 제공받는 구매자들은 보다 현명한 구매를 할 수 있으며, 거래과정에서 판매자(생산자)와 구매자의 협상력이 구매자에게로 옮겨질 수 있다. 본 논문이 제시한 비교쇼핑에이전트는 소비자 중심의 사이버 유통시대를 촉진하는데 일익을 담당하는데 그 의의가 있다.

• 디지털융복합연구
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• 제12권9호
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• pp.359-367
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• 2014

본 연구는 국내 외 모바일 시장에서 치열한 경쟁을 벌이고 있는 삼성, 엘지, 스카이, 애플 등 제조사별 사용자 인터페이스(UI: User Interface) 경험 요인들이 어떠한 차이가 있는지 실증적으로 규명해보자 하였다. 또한 이러한 사용자 인터페이스 경험 요인들이 제품태도 및 재구매의도에 미치는 영향은 제조사별로 어떠한 차이를 보이는지 함께 확인하고자 하였다. 연구결과, 첫째, 사용만족경험을 구성하고 있는 인포메이션과 인터랙션, 유용적경험, 디자인만족경험 모두에서 제조사별 UI경험은 차이가 있는 것으로 확인되었다. 둘째, 제품태도는 제조사별로 차이가 있는 것으로 확인되었다. 마지막으로 재구매의도는 제조사별로 차이가 있는 것으로 확인되었다. 구체적으로 엘지와 스카이보다 삼성이, 삼성에 비해서는 애플이 더 높은 것으로 나타났다. 이상의 연구결과는 UI경험과 관련된 연구의 확장과 함께 제조사별 차이점에 대한 고찰을 통하여 해당 기업들의 UI전략 수립에 유용한 시사점을 제공 할 것으로 기대한다.

• 항공우주시스템공학회지
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• 제7권2호
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• pp.42-46
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• 2013

In 2010, Airworthiness standard for VLA(Very Light Airplane) category was newly introduced as KAS Part VLA. KAS Part VLA is an adaption of EASA CS-VLA which was developed to reduce unnecessary burden of manufacturer of very light, simple, single-reciprocating-engine/propeller powered airplanes having low stall speeds by tailoring some requirements of Part 23. In this paper, difference and similarity of structural requirements between Part 23 and VLA was analyzed.

• 한국컴퓨터정보학회논문지
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• 제21권2호
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• pp.145-152
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• 2016

In this paper, we propose a comparative study of Informatics subject curriculums and textbooks in middle school between Korea and England because both countries have similar national curriculums about software education which has computational thinking as objectives of education and good-qualified textbooks for teachers and students. we looked through the Informatics and Computing curriculums and textbook of both countries in order to give good reference case to Informatics textbook manufacturer. In addition, we verified the validity of this study through FGI. The results of this study will be a good case study about designing Informatics curriculum and making Informatics textbooks in middle school.

• Journal of Biosystems Engineering
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• 제35권6호
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• pp.380-386
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• 2010

This study was carried out to develop soybean thresher which is able to reduce the soybean threshing damage in comparison to the conventional thresher. A threshing cylinder with different diameter of 480 and 384 mm at each end and with one quarter disc pegs of 60 mm radius was developed and attached to the prototype thresher. A conventional thresher which has a threshing cylinder with $\wedge$ type threshing pegs and same diameter of 480 mm at each end was used for comparative test. A series of comparative performance test was conducted using sun-yu and chung-ja soybean. For sun-yu bean, which is white and usually used for soybean paste and soy sauce, the ratio of damaged beans of prototype ranged 2-3% for 330-360 rpm which is recommended cylinder speed by manufacturer. The ratio of damaged beans of conventional thresher was 3-4% for the same range of cylinder speed. chung-ja beans with black color usually shows high damaged ratio compared with white beans, thus cylinder speed of 250-300 rpm is recommended by manufacturer to reduce the damaged ratio. For this range of cylinder speed, the damaged ratio of prototype was 1.3-1.4% and it was 2.7-6.1% for the conventional thresher. Thus prototype is able to reduce the damaged ratio 1.5-5.0% compared with conventional thresher. Prototype shows 0.4% of unthreshed soybean ratio for sun-yu bean in the optimum range of cylinder speed and it was 0.87% for the conventional thresher. For chung-ja bean, the ratio of unthreshed soybean was almost same for both prototype and conventional thresher with the value of 4.0%. The reason of high unthreshed soybean ratio for chung-ja bean compared sun-yu bean is due to the high seed moisture content of 29.11% which is much higher than that of the recommended.

• 유통과학연구
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• 제16권10호
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• pp.47-54
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• 2018

Purpose - The main purpose of the study is to investigate the antecedents of repurchase intention on foreign brand products by Chinese and Indian millennial customers. In addition to this, this study also examines mediating effect of 'CSR' on the relationship between the antecedents and repurchase intention. Research design, data, and methodology - Responses from 202 Chinese university students and 209 Indian university students were finally analyzed. To test the proposed relationships, path analyses, mediation analyses and multi-group analysis were conducted. Results - In China, only brand image had positive effects on repurchase intention. CSR played mediating role between manufacturer's country image and repurchase intention. In India, comparatively, economic factor, manufacturer's country image and brand image had positive effects on repurchase intention. CSR played mediating role between all four antecedents and repurchase intention. Conclusion - This study showed different results of repurchase intentions of Millennial consumers in China and India because cultural and political systems of two countries were so different. So foreign firms should apply customized and differentiated marketing strategies to each country.

• KIEAE Journal
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• 제4권1호
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• pp.11-20
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• 2004

Innovative daylighting systems in buildings in various climatic zones around the world have been developed under the IEA SHC Task21. The performance assessment were obtained by monitoring the most systems using full-scale test model rooms or actual buildings under real sky conditions. This study aims to analyze the configuration and monitoring system of the nine Mock-up models of the IEA SHC Task21 comparatively. For the purpose, the geometry of the test rooms (length, width, height, window area, glazed area and occupied), reflectance of walls, floor and ceiling, transmittance of glazing (transmittance for hemispherical irradiation, normal irradiation and U-value) were compared. And equipment for measurement (manufacturer, range, calibration, maximum calibration error, cosine response error, fatigue error), and data acquisition system (manufacturer, type, number of differential analogue input channels, A/D converter resolution in bits, data acquisition software) were also analyzed comparatively. Some findings of these experimental methodology of standard monitoring have been proven to be a valuable one for future assessment of advanced daylighting systems in our country.

• 한국전기전자재료학회논문지
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• 제35권1호
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• pp.66-71
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• 2022

The insulator used for the transmission line is a device that is bonded with a cap, pin, ceramic, and cement to withstand insulation capacity and mechanical load. The insulator design can help to reduce the dispersion of the electric field; thus, the optimization of today's design, especially as demanded power grows, is critical. The designs of four manufacturers were used to perform a comparative analysis. Under dry circumstances of the new product, an electric field distribution study was done with no pollutants attached. Manufacturer D's design has the best voltage uniformity of 24.33% and the arc length of 500 mm or more. Manufacturer C's design has an equalizing voltage of more than 2% higher than that of other manufacturers. The importance of the design of the insulator and the number of connections according to the installation conditions is very efficient for transmission lines that will increase in the future.

• 대한인간공학회지
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• 제27권1호
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• pp.29-35
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• 2008

An estimated 1 billion mobile phone were sold globally in the year 2006. In Korea, people watch television 3.17 hours in a day. Television isn't what it used to be. Digital TV provides both interactivity and high definition. Mobile phone also transferred from 2G to 3G or 3.5G. This means the complexity of TV and mobile phone is increased, design of user interface is more difficult. Unlike the personal computer industry, TV and mobile phone industries have no standard user interface. A comparative study for user interface between TV and mobile phone is studied. User, task, system are analyzed in requirement analysis. User interface model and interaction are also analyzed between TV and mobile phone. This study provides some insights for user interface design. First, the UI designer have to consider another products because one user using one product at the same time using another products. Experience for one product affects that for another product. Second, TV and mobile phone show very similar pattern, especially interaction task and input interaction. Third, there are not sometimes optimized experience between service operator and device manufacturer. Cooperative design between them is required.