• Proceedings of the Korea Multimedia Society Conference
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• 2000.11a
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• pp.81-84
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• 2000

본 논문에서 제안하는 XMF(XML-based Mediation Framework)는 인터넷상의 이질적이고 분산되어 있는 정보 자원에 대하여 사용자에게는 위치 투명성(location transparency)과 접근 투명성(access transparency)을 보장하면서 통합시 발생하는 구조적 충돌(structural conflict)과 의미적 충돌(semantic conflict)을 해결하는 기능을 가지고 있다. 또한 XMF는 통합 모델로써 XML을 채택함으로써 모든 정보 자원에 대하여 모델링 할 수 있게 된다. 본 논문은 이러한 XMF를 기반으로 인터넷에 산재하는 정보 자원, 그리고 DBMS에 저장, 관리되는 데이터를 통합하여 사용자에게 가상 멀티미디어 문서(virtual multimedia document)를 제공하는 시스템을 구축하는 것이다.

• 프린팅코리아
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• v.8 no.4
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• pp.106-107
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• 2009

• 프린팅코리아
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• v.8 no.5
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• pp.92-93
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• 2009

• 프린팅코리아
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• v.8 no.3
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• pp.134-134
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• 2009

• Journal of Nutrition and Health
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• v.24 no.4
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• pp.337-343
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• 1991

The effect of 9-methyl folate on histidine oxidation, the uptake of an injected dose of $[^{3}H]folate$ by the livers and kidneys, the hepatic and blood folate levels were investigated by feeding crude x-methyl folate(XMF) at a level of 5 g per kg diet. 9-Methyl folate is konwn as a major forate antagonist in XMF to produce deficiency signs in rat. Feeding of XMF decreased histidine oxidation and hepatic folate levels significantly, which showed the function of 9-methyl folate as an antifolate in rats. The hepatic uptake of labeled folate in XMF- fed rats was decreased significantly. These data led to conclude that 9-methyl folate inhibited folate uptake and retention by tissue, especially liver, which could explain the low liver folate levels and the decreased histidine oxidation. However, only very low level of 9-methyl folate was detected in liver. It suggested that 9-methyl folate may be metabolized very quickly in the liver after uptaken.

• 프린팅코리아
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• v.8 no.7
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• pp.85-85
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• 2009

• The Journal of Society for e-Business Studies
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• v.6 no.2
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• pp.39-55
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• 2001

As the Proliferation of the Internet, especially World Wide Web, numerous information resources have been constructed. The characteristics of information resources on the Internet are that the information resources are distributed, autonomous, and heterogeneous. Moreover each information resource has its own query method, data representation, and schema structure. The integration of information resources is one of the most important research issues in the Internet data management. The task of information resources integration system is to answer queries that require extracting and combining data from multiple information sources. In this paper, we propose an XML-based Mediation Framework(XMF) for integrating the Internet information resources.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10a
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• pp.96-98
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• 1999

현재의 인터넷은 HTML 뿐만 아니라 다양한 멀티미디어 문서 포맷 및 질의 가능한 정보를 제공할 수 있도록 발전함에 따라 단순한 정보 전달만이 아닌 하나의 통신 수단으로써 활용되는 양상을 띄고 있다. 또한, XML의 등장으로 인하여 구조적 문서 정보를 전달할 수 있도록 발전하고 있다. 인터넷의 비약적인 발전에 따라 기존의 정보 시스템들은 인터넷을 통하여 기존에 존재하던 데이터들을 서비스할 수 있도록 새로 작성되거나 재구축되어 왔다. 이런 경우 기존의 정보시스템들이 제공하는 데이터들은 질의 형식 및 데이터 모델, 스키마 구조, 사용하는 시스템에서 이질적인 특성을 가지고 있으며, 서로 자치적인 시스템으로써 분산되어 존재한다는 특성을 지니고 있다. 본 논문에서는 이런 이질적으로 분산되어 있는 인터넷 데이터들을 XML을 공통 데이터 모델로 이용하는 미디에이터 방식을 방식을 이용하여 통합하는 방법(XMF: XML-Based Mediation Framework)을 제시한다.

• Journal of Biosystems Engineering
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• v.39 no.1
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• pp.11-20
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• 2014

Purpose: Walking type cultivator used for weeding generated excessive handle vibration as well as bouncing motion depending on the weeding speed. This research was conducted to define a design factor of the rotary weeding blades for reducing soil reaction forces as well as hand vibration. Methods: The motion and forces acting on the rotary blades were reviewed to find out the most influencing parameter on hand vibration. The installation angle (IA) of the blade was selected and analyzed to determine the condition of no reaction force less. For removing the unnecessary upward soil reaction, the design factor theory of weeding blade was suggested based on geometrics and dynamics. For evaluation of design factor theory, the experiment in situ was performed base on ISO 5349:1. The vibration $a_{hv}$ and theoretical value $X_{MF}$ were compared with two groups that one was positive group ($X_{MF}$ > 0) and the other was negative group ($X_{MF}$ < 0). Results: $X_{MF}$ was derived from rotational velocity, forward velocity, disk diameter, weeding depth, blade's width and IA of blade. Two groups had significant difference (p < 0.05). In aspect of the group mean total exposure duration, positive group was 17.53% bigger than negative group. When disk radius 100, 150 and 200 mm, minimum IAs were $4{\sim}27^{\circ}$, $3{\sim}15^{\circ}$ and $2{\sim}10^{\circ}$, respectively. A spread sheet program which calculated XMF was developed by Excel 2013. Conclusions: According to this result, minimum IA of weeding blade for soil reaction reduction could be obtained. For reduction hand-arm vibration and power consumption, minimum IA is needed.