• 한국자기공명학회논문지
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• 제15권1호
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• pp.14-24
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• 2011

We have performed Liquid Chromatography-Solid Phase Extraction-NMR (LC-SPE-NMR) analysis for liquid crystalline mixture and elucidated the structures of selected components by NMR spectra. Combining the results of one-dimensional 1H experiments as well as homonuclear and heteronuclear two-dimensional experiments, we could analyze the molecular structure of the liquid crystal singles whose structure had not been interpretable by mass spectrometry alone.

• 한국도서관정보학회지
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• 제27권
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• pp.271.1-307
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• 1997

This paper intends to describe the concepts and historical development of information resources in the digital library, to analyze the different types and characteristics of electronic information resources, and to comment the cases of electronic information resources-especially electronic books, electronic journals, and electronic newspapers. Over the centuries, since the introduction of the printing press, conventional books have played a fundamental role in a wide range of information dissemination and knowledge transfer activities. But, I have mentioned some of limitations of conventional books and electronic information resources in this article. In order to overcome some of them, I think that we should introduce the idea of electronic information resources as a means of storing, sharing and communicating large volumes of dynamic multimedia information.

• 한국신뢰성학회지:신뢰성응용연구
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• 제9권1호
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• pp.37-45
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• 2009

Recently mechanical watt-hour meters are being replaced by electronic watt-hour meters. The replacement period of mechanical watt-hour meters is 7 years. This period is based on long term historical data. The replacement period of electronic watt-meters is also 7 years. This period is determined using the replacement period of mechanical watt-hour meters. However lifetime of mechanical watt-hour meters is different from the lifetime of electronic meters. In order to determine desirable replacement period of electronic watt-hour meters, accelerated life tests of major components in electronic watt-hour meters were performed. The test results showed that LCD was the component which had the shortest lifetime. In this paper, lifetime of electronic watt-hour meters manufactured by 3 company was estimated and life test standard for LCD was developed.

• 정보관리학회지
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• 제17권2호
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• pp.171-188
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• 2000

본 연구는 디지털도서관 기술의 응용 분야인 웹 기반 전자상거래에 필수적인 전자 카타로그를 cXML을 이용하여 구현하였다. 인쇄문서의 디지털화 기술이 발전함에 따라 전자상거래에서 사용되는 다양한 문서들의 디지털화가 매우 중요하다. 본 연구는 이점에 착안하여 기존의 전자 카타로그에 사용되고 있는 HTML과 XML의 제한점을 제시하고, 최근 개발된 cXML을 소개하였으며, 또한 cXML을 이용한 전자 카타로그를 개발함으로써 표준화되고 보안성 있는 전자상거래를 위한 접근 방법을 연구하였다.

• 한국도서관정보학회지
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• 제22권
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• pp.351-371
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• 1995

This paper intends to describe the concepts and historical development of electronic library, to examine some of information technologies such as CD-ROM, electronic books, multimedia and networks, and to analyze cases of electronic library. Electronic library is able to offer many services in digital form, ranging from bibliographic databases on CD-ROM running on standalone computers, to fully networked abstracts and texts, available inside and outside the library. For users, the electronic library is a means of improving the speed of access to library materials, of providing a simple means of the selecting materials amid the glut of information available, and of eliminating the need to visit a library for many information inquires. In summary, electronic library has the potential to give scholars better service than conventional libraries, at a lower cost. However, remember that, today, almost all these benefits are still potential.

• Journal of Information Processing Systems
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• 제6권3호
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• pp.375-384
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• 2010

Trajectory modeling is foundational for 4D-Route modeling, conflict detection and air traffic flow management. This paper proposes a novel algorithm based Vincenty's fomulas for trajectory calculation, combined with the Dijkstra algorithm and Vincenty's formulas. Using flight plan simulations our experimental results show that our method of En-route trajectory calculation exhibits much improved performance in accuracy.

• 한국중재학회지:중재연구
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• 제15권1호
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• pp.179-206
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• 2005

The development of information & telecommunication technology and internet-based electronic commerce helps to create a new economic environment. Such an economic environment requires the companies to change themselves, while providing unlimited potential and opportunities to them. Thus, in order to help the companies engaged in a fair and free competition in the electronic market, a fair competition policy needs to be designed and operated. The electronic commerce has not only promote the competition but also impede it. The electronic commerces tend to violate the fair trade than the conventional commerces in terms of differentiation, monopoly, conference, limited competition and intellectual property rights, schumpeterian competition, Alliance competition. With such basic concepts in mind, this study was aimed at reviewing the economic effects of the electronic commerce in the market and addressing the problems involving the application of the fair trade code to the electronic commerce, and thereby, suggesting the insights into our fair competition policy and reform measures.

• 한국정보통신학회논문지
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• 제7권6호
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• pp.1252-1268
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• 2003

There is a big change in Electronic Commerce. With little or no profit projected for the foreseeable future with the dotcom companies, Internet venture capitalists are looking for new business models. They are now turning to B to B Electronic Commerce. It is expected that B to B Electronic Commerce will be more active than B to C in the very near future. In the future B to B Electronic Commerce will move to include collaborative Electronic Commerce which includes product development, engineering, material procurement, and management. Even though the solution to this multidimensioal and complicated process may take some time, a total solution to this will dramatically change the landscape of Electronic Commerce. Thus the various corporations must work together to find the total solution that will build this infrastructure.

• 정보학연구
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• 제9권3호
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• pp.1-14
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• 2006

China has recently (28 August 2004) adopted a new act legalizing the electronic signature. This new act provides electronic signatures with the same legal status as handwritten signatures, and states that on-line certification providers will have to be created in order to ensure the security of on-line operations made using said signatures. This new act is intended to increase Chinese electronic business, and thus to raise the revenue China can expect from said business. And the law grants electronic signatures the same legal effect as handwritten signatures and seals in business transactions, and sets up the market access system for online certification providers to ensure the security of e-commerce. As Internet trade requires a reliable third party to identify the signers, the credibility of online certifying organizations is significant for the transaction security. So, considering the weakness of China's social credibility system, the law regulates that the online signatures certification providers should be approved and administered by governments.

• 디지털융복합연구
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• 제2권2호
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• pp.9-28
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• 2004

The purpose of this study is explore the changes of environment in terms of diffusion of EC and to present effective marketing strategies for Electronic Commerce Activation. This paper focuses on the customer management, Real-Time Responding, and market strategies in Electronic Commerce. EC(Electronic Commerce) that out of the evolution of Internet technology gets a corporation changes to survive in 21st century. So the corporation must set the strategy to fit a Internet focused society. This paper is focusing the analysing the difference between the e-marketing and traditional marketing and proposing the new strategical marketing mix. On the Electronic Commerce, the 6Cs of marketing - Contents, Community, Commerce, Connection, Communication, Customizing - are being played out quite differently than they normally are off-line. In conclusion, the change in Electronic Commerce environment results in (1) redefinition of customer group, (2) different marketing strategies to fit in Electronic Commerce environment, and (3) changes in customer management, promotion strategy, advertizing appeal.