• 한국시스템다이내믹스연구
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• 제11권2호
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• pp.103-118
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• 2010

To reduce costs in general process, product quality degradation or lack of services are appeared. To improve these problems, dramatical solution of 'Freeconomics (Free+Economics) are discussed. Freconomics means, producers provide their products and services free of charge but they get customer's interests and reputations. Based on these customer's interests and reputations, producers generate profits with other services or related products. In this paper, we discuss about Green IT strategic plan with the management technique of Freeconomics. Green IT is called as Next-Generation growth engine to develop economy, so every country and industry hopes to develop it. With Freeconomcs, customers could get more quickly and much better use the Green IT products. So it is expected to spread of Green IT with Freeconomics as industry, country and customers are all satisfied.

• 산경연구논집
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• 제10권5호
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• pp.21-26
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• 2019

Purpose - The IT convergence industry, which is the subject of this study, is the main strategy field during the 4th industrial revolution era. Against this background, it is urgent to establish policy measures to survive and spread export products in the global industries. Research, design, data and methodology - In order to achieve this goal, we conducted the Importance - Performance Analysis (IPA) and found that it is necessary to develop tailor - made marketing support for small and medium sized IT exporters and to develop export strategy products with competitive technologies. Results - Above all, customized marketing support for IT export-related SMEs was needed. Next, in the first quadrant, strategic products, qualitative level, global, value added, and information systems were included, and it was found that 'development of export strategic products with competitive technologies' was necessary. In the third quadrant, related variables calculated at present time are not urgent variables. Conclusions - In this study, it would be necessary to calculate the additional implications of the variables that are not considered in this study, including future studies, because the methods considered here as analysis variables are carried out in comparison with the previous studies.

• 한국인터넷방송통신학회논문지
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• 제19권1호
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• pp.127-132
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• 2019

본 논문에서는 유비쿼터스 컴퓨팅에 의한 농수산물의 생장관리에 필요한 정보시스템을 설계하고 구축하였다. 그러기 위하여 여러 센서 시스템을 설치하고 IP Cam을 개발하여 모니터링을 구축하였다. 이러한 모니터링에 의한 농수산물의 생육조건을 직접 제어하고 관리하는 데이터베이스에 의해 IT 기술에 의한 환경관리시스템을 구축할 수 있었다. 이를 위하여 생육조건을 취합하고 실시간으로 데이터를 획득할 수 있는 여러 센서를 설치하였으며 IP Cam을 세부분으로 나누어 설계하고 제작하였으며 농수산용으로 적용함으로써 토양수분, 온도조절, 환경정보 등 각종정보를 모니터링하여 최적의 생육환경조건을 마련할 수 있었다.

• 한국IT서비스학회지
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• 제22권1호
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• pp.43-56
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• 2023

With the development of the e-commerce market, various types of products continue to be released. However, customers face an information overload problem in purchasing decision-making. Therefore, personalized recommendations have become an essential service in providing personalized products to customers. Recently, many studies on GCN-based recommender systems have been actively conducted. Such a methodology can address the limitation in disabling to effectively reflect the interaction between customer and product in the embedding process. However, previous studies mainly use implicit feedback data to conduct experiments. Although implicit feedback data improves the data scarcity problem, it cannot represent customers' preferences for specific products. Therefore, this study proposed a novel model combining explicit and implicit feedback to address such a limitation. This study treats the average ratings of customers and products as the features of customers and products and converts them into a high-dimensional feature vector. Then, this study combines ID embedding vectors and feature vectors in the embedding layer to learn the customer-product interaction effectively. To evaluate recommendation performance, this study used the MovieLens dataset to conduct various experiments. Experimental results showed the proposed model outperforms the state-of-the-art. Therefore, the proposed model in this study can provide an enhanced recommendation service for customers to address the information overload problem.

• 농촌계획
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• 제4권1호
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• pp.40-55
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• 1998

The objectives of this study are to 1)research the importance of direct trade of agricultural products between farmers and consummers, 2)invest the trade process of agricultural products, 3)survey the patterns of direct trade of agricultural products, 4)find out the situations of direct trade of agricultural products, 5)suggest the directions to improve the direct trade of agricultural products. The data were collected from Taegu city, Taechun city and Kyungsang poop do for this study. The major findings of this study to improve the direct trade of agricultural products between urban and rural are as follows; First, it is very important that producers and consummers have common sense to the direct trade between urban and rural. Second, local government related the trade of agricultural products should positively take parts in the direct trade of agricltural products between producers and consummers in administration and finance. Thirth, non-profit organizations above other organizations in urban and rural must lead the direct trade of agricultural products between urban and rural. Fourth, the markets for direct trade of agricultural products are to be opened according to basing on consummers'needs to agricultural products. Fifth, the engaged farmings between producers and consummers are to be more positive by significant relationship( promised brothers and sisters) between rural and urban. Sixth, people who moved to urban from rural should be finked out in each community(in rural), they can buy the agricultural products in the community that they were born. Seventh, The communities in rural must produce the specific agricultural products in each community.

• 가정과삶의질연구
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• 제27권3호
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• pp.45-60
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• 2009

This study reviewed the influence of consumer innovativeness and consumer knowledge on external information search behavior for the purchase of high-tech products. The strategies for offering information effectively for high-tech products may be proposed as follows based on the results of this study. First, the advertisements of high-tech products which are generally encountered need to offer sufficient information about the products in addition to fulfilling the function of persuading consumers. Second, it is necessary to implement an information network so that neutral offerings of information about high-tech products may be made promptly by reliable institutions. Third, information about high-tech products should be offered with easier explanations so that there should be no information-underprivileged class in utilizing the function of high-tech products.

• International Journal of Reliability and Applications
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• 제7권1호
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• pp.71-77
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• 2006

The market for second hand products has been growing for a variety of reasons (e.g., new products appearing at a faster rate and the expected life of products increasing due to rapid advances in technology). The demand for warranties for second-hand products has been growing along with the growth of the market for second-hand products. Warranty for new products (consumer durables, industrial and commercial, and specialized defense products) has received a lot of attention. In contrast, warranties for second-hand product have received very little attention. Often, dealers of second-hand product such as cars offer 2D-warranties (Year and Kilometers). The expected warranty cost associated with a second-hand product for 2D-Policies is a function of the age of the item and its usage (as it affects failures over the warranty period), the warranty terms and the servicing strategy used by the dealer. This paper deals with development of models for warranty cost analysis along with the decision on sale price and warranty cover for 2D-Warranty policies associated with sale of second-hand products.

• 급식외식위생학회지
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• 제2권1호
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• pp.22-29
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• 2021

This research has conducted one-on-one depth interviews targeting baby boomers who are economically active; It seeks to analyze the purchase factor of HMR products to deduct conclusion. The result of the research deducted through depth interviews is as follows. First, baby boomers described HMR products as a reliable meal. Second, baby boomers described HMR products as a cold-hearted meal. Third, baby boomers described HMR products as a habitual meal. Fourth, baby boomers described HMR products as lacking. Fifth, baby boomers thanked to HMR products. The research deducted the conclusion about the HMR products' purchase factor through one-on-one depth interviews. Additionally, the research showed a potential direction for the research and development of HMR products.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.367.2-367.2
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• 2002

Cnidium Rhizome is a frequently prescribed herbal medicine in Korea, Japan as well as China, which has been successfully used in these countries for the treatment of diseases related to. gynecology, blood circulations and dental troublers in the name of 천궁. And it is circulated as the same chinese character, which is 천궁, although original plants are different as Cnidium officinale in pharmacopoeia of Korea or Japan and Ligusticum chuanxiong Hort. In that of China. (omitted)

• 대한수학회지
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• 제50권4호
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• pp.813-828
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• 2013

It is known that generalized free products of finitely generated nilpotent groups are conjugacy separable when the amalgamated subgroups are cyclic or central in both factor groups. However, those generalized free products may not be conjugacy separable when the amalgamated subgroup is a direct product of two infinite cycles. In this paper we show that generalized free products of finitely generated nilpotent groups are conjugacy separable when the amalgamated subgroup is ${\langle}h{\rangle}{\times}D$, where D is in the center of both factors.