• Korean Journal of Veterinary Service
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• v.28 no.4
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• pp.407-412
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• 2005

Ten isolates of Verotoxin-producing Escherichia coli (VTEC) were detected in slaughtered cattle and investigated their phenotypic characteristics and antimicrobial susceptibility. None of the isolates was positive for eae gene. Only one isolate was positive for uidA gene. Eight out of ten isolates of VTEC were originated from broker's cattle. Thus microbiological monitoring for broker farms should be performed to minimize VTEC contamination. In the antimicrobial susceptibility test, all the isolates were highly resistant to bacitracin and lincomycin whilst they are susceptible to apramycin and neomycin.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.05c
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• pp.124-127
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• 2002

EDI를 사용한 전자문서 처리는 두 기업간의 데이터를 전달하기 위해 VAN을 이용하여 데이터를 전달했으나 VAN의 폐쇄성으로 인해 확장에 문제가 제시되었다. 이러한 문제점을 해결하기 위하여 다양한 문서구조 표현이 가능한 XML (eXtensible Markup Language)을 활용한 EDI 서비스 환경으로 옮겨가고 있다. 본 논문에서는 JDBC 브리지를 사용하여 두 관계형 데이터베이스에 존재하는 EDI 메시지를 브러커시스템를 이용한 XML 변환기법을 제안한다. 변환된 XML을 사용하여 스키마를 그대로 복구하는 동시에 정의된 테이블에 원래 레코드들을 그대로 삽입하는 방법을 제시하면서, 반드시 동일한 데이터베이스 관리시스템을 사용해야 한다는 전제조건을 필요했던 기존방식을 탈피했으며 외부로 전달할 경우 환경에 따라 제대로 동작하지 않을 가능성이 높았던 제한점을 극복했다.

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.7
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• pp.141-148
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• 2001

This paper describes a mechanisms for IPv6 multihomming with loadsharing broker, focusing on the interdomain scalability and load sharing with redundancy on IPv6 networks. Unlike currently-practiced IPv4 multihoming, this model does not impact the worldwide routing table size, also it provides inbound load sharing at site level based on router renumbering, and multiple-prefix assigning techniques of IPv6. The proposed model has four modules such as building interfaces MIB module, priority list maintaining module, load detection module, and RRP configuration module.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.112-114
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• 2014

클라우드(cloud)를 이용한 응용 실행에서 클라우드 서비스 브로커 (cloud service broker, CSB)는 효과적인 자원 사용 및 서비스 수준 협약(service level agreement, SLA) 보장 등의 장점을 가진다. 따라서 본 논문에서는 CSB 를 통한 응용 실행에서의 가상 머신 (virtual machine, VM) 할당 기법들을 소개하며 BestFit (BF), WorstFit (WF), Modified BestFit (MBF), Modified WorstFit (MWF), Reserved Instance-aware Modified BestFit (M-MBF) 의 평균 VM 사용률을 비교한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.239-240
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• 2012

When users access to use the computing resources in the cloud, they expect specific quality of service (QoS) which should be guaranteed by the service provider. Meanwhile, the service provider should adopt proper schemes to enhance the resource utilization. In this thesis, we propose the MapChem-Broker which aims to satisfy users' QoS requirements as well as enhance the resource utilization by controlling the provision of VM resources in the cloud. On the experimental cloud testbed, we compare the proposed scheme with an existing one for VM resource provisioning. Results show that the proposed scheme outperforms the existing one.

• The Bulletin of The Korean Astronomical Society
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• v.44 no.1
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• pp.71.2-71.2
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• 2019

We have developed and tested a prototype system to process transient alert messages from the currently working facilities such as Gaia and GCN notices. Our experiments with the prototype focus on developing a platform that can be used in the LSST era with about 10 million alerts per night and helping Korean community members with the automated processing environment to provide auxiliary information for every alert message. The system consists of a message broker implemented by Redis and multiple message subscribers specialized for specific scientific interests. The current implementation of the entire system allows new Korean members to adopt their own processing chains receiving the messages from our local broker. We welcome experimental ideas and opinions from the Korean community about the current message processing system. We plan to test the current system with the ZTF alerts in the near future.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.10
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• pp.279-326
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• 1997

• Review of Korea Contents Association
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• v.13 no.1
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• pp.58-61
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• 2015

• Journal of KIISE:Software and Applications
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• v.31 no.9
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• pp.1180-1195
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• 2004

Due to the exponential increase of information, search and access for the Web information or service takes much time. Web information is represented through several web pages using hyperlinks and each web page is contains several topics. However. most existing web tools don't reflect such web authoring tendencies and treat it as an independent information unit. This inconsistency yields inherent problems in web browsing and searching. In this paper, we propose a web surfing assistant called LinkBroker that provides collodion pages. They are composed of relevant information extracted from several web pages that have table and frame structure in order to improve accessibility to web information. Especially, the system extracts a set of web pages that are logically connected and groups those pages using table and frame tags. Then, essential information blocks in each page of a group are extracted to construct an integrated summary page. It Provides a comprehensive view to user and one cut way to access distributed information. Experimental results show the effectiveness and usefulness of LinkBroker system.

• Journal of KIISE:Information Networking
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• v.30 no.2
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• pp.199-206
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• 2003

one of the representative micropayment protocols. The original PayWord system is designed for a user who generates paywords by performing hash chain operation for payment to an only designated vendor. In other words, a user has to create new hash chain values in order to establish commercial transactions with different vendors on the Internet. Therefore, we suggest an efficient scheme that is able to deal with business to different vendors by using only one hash chain operation to supplement this drawback. In this proposed system, a broker creates a new series of hash chain values along with a certificate for the user's certificate request. This certificate is signed by a broker to give authority enabling a user to generate hash chain values. hew hash chain values generated by a broker provide means to a user to do business with multiple vendors.