• Proceedings of the KSRS Conference
• /
• 2004.10a
• /
• pp.158-161
• /
• 2004

KOMPSAT-2, to be launched in 2005, will be a long awaited addition to the existing high-resolution satellite sensors. The use of download facilities in Europe will greatly increase its capacity without loosing any coverage over Korea. In this paper the concept for an Urban Application Center is presented. It is part of the proposed Regional Application Center which is dedicated to archiving and distributing KOMPSAT-2 images. The Urban Application Center will offer services derived from KOMPSAT-2. Its aim is to promote the use of KOMPSAT-2 data and increase the general awareness and acceptance of satellite data.

• Journal of information and communication convergence engineering
• /
• v.5 no.4
• /
• pp.369-373
• /
• 2007

RFID systems large volume of data, it can lead to slower queries. To achieve better query performance, we can partition into active and some nonactive data. In this paper, we propose two approaches of partitioning for efficient query support. The one is average period plus delta partition and the other is adaptive average period partition. We also present the system architecture to manage active data and non-active data and logical database schema. The data manager check the active partition and move all objects from the active store to an archive store associated with an average period plus data and an adaptive average period. Our experiments show the performance of our partitioning methods.

• The Transactions of the Korean Institute of Electrical Engineers B
• /
• v.52 no.3
• /
• pp.116-123
• /
• 2003

This paper deals with an experimental study for on-line monitoring the performance of a universal motor for vacuum cleaner. Performance tests are conducted on the PC-based virtual instrumentation system designed using the graphical programming language LabVIEW. The proposed monitoring system is capable of performing real time measurement functions, including data acquisition, display, and analyses in the time and frequency domains, as well as data archiving. The measured mechanical and iron loss, voltage, current, input power, power factor, torque, and efficiency characteristics are presented as function of speed.

• The Journal of the Korean dental association
• /
• v.36 no.10 s.353
• /
• pp.691-696
• /
• 1998

지난 4월 제47차 정기대의원총회에서 정보통신위원회 신설에 대한 승인으로 치협 내에 정보통신위원회가 신설됐으며 서울지부에서도 정보통신부가 설립돼 이제는 치과계도 바야흐로 정보화 시대로 접어들게 됐다. 보건복지부와 의료보험연합회 역시 EDI 방식인 통신을 이용한 의료보험 청구를 적극 권장하고 있어 의료계에서도 컴퓨터를 활용하는 분야가 점차 확대될 전망이다. 개원가에서는 의료보험청구 외에도 덴탈 비전이나 디지털 엑스레이를 네트워크화 하여 활용하고 있으며 대학의 치과병원이나 종합병원 치과에서는 OCS(order communication system)와 PACS(picture archiving & communication system))를 중심으로 전산화 작업을 추진하고 있다. 컴퓨터 없이는 생활할 수 없는 현실 앞에서 치과계에는 전산화가 어느 정도 이루어졌는지 살펴보고 단국치대 교정과 김창환 레지던트의 글을 통해 교정분야에서 컴퓨터가 어떻게 활용되고 있는지에 대해 알아본다.

• 제어로봇시스템학회:학술대회논문집
• /
• 2001.10a
• /
• pp.181.2-181
• /
• 2001

Stereo PACS (Picture Archiving and Communication System) is not available yet because of some limitations of medical stereo image software and viewing devices. As a stereo PACS viewer, we designed two functions. One is selecting and viewing a multiplexed stereo image directly, and the other is selecting a stereo pair image (left and right sides both) and merging the stereo pair image into a multiplexed image in software. For the medical image compression of 3-D stereo endoscopic images, we used JPEG and Wavelet compression and to determine an acceptable compression rate using PSNR (Peak Signal-to-Noise Ratio). As a result, we got the conclusion that medically acceptable image compression rate should have the PSNR of above about 40[dB] (JPEG (5:1), Wavelet (10:1)).

• Annual Conference of KIPS
• /
• 2005.05a
• /
• pp.585-588
• /
• 2005

연구자들이 국외 생명과학관련 문헌정보를 찾으려면 PubMed와 같은 세계적인 문헌정보서비스를 많이 이용하며, 국내 생명과학관련 문헌정보를 찾으려면 KISTI 학회마을, KoreaMed 등 여러 사이트를 방문해야 한다. 이에 생명과학관련 연구를 원활히 수행할 수 있도록 생명정보 데이터베이스와 분석도구를 서비스하고 있는 KISTI 바이오인포매틱스센터(CCBB) 홈페이지에서 인터넷상의 Open Access 문헌정보와 국내 학회정보를 수집하여 메타 데이터베이스를 구축하여 서비스하고자 한다. 또한 생명과학 관련 주제별 Open Archiving 커뮤니티의 구성과 운영을 통한 연구자간의 정보교환을 유도하고, 더불어 논문뿐만 아니라 세미나, 연구노트 등의 최신의 연구정보를 공유할 수 있도록 본 프로토타입 시스템을 설계하였다.

• The Transactions of the Korean Institute of Electrical Engineers B
• /
• v.50 no.5
• /
• pp.205-213
• /
• 2001

This paper presents a virtual instrumentation(VI) system for LIMs performance on-line monitoring. The VI is designed using the graphical programming language LabVIEW and is capable of performing on-line measurement functions, including data acquisition, display, and analyses in the time and frequency domains, as well as data archiving. To monitor in real time the steady-state and transient electromagnetic thrust of LIMs, the search coil is used for the determination of the flux linkage components, which is then multiplied by the appropriate current components to yield a signal proportional to the electromagnetic thrust. This paper reports the LIM's dynamics measured by the proposed on-line monitoring system.

• Proceedings of the KIEE Conference
• /
• 2002.11d
• /
• pp.160-162
• /
• 2002

This paper presents a virtual instrumentation (VI) system for on-line monitoring the performance of universal motor. The VI is designed using the graphical programming language LabVIEW and is capable of performing real time measurement functions, including data acquisition, display, and analyses in the time and frequency domains, as well as data archiving. The electrical quantities and the mechanical quantities on the performance of universal motor monitored by the proposed system are reported.

• Journal of Biomedical Engineering Research
• /
• v.11 no.1
• /
• pp.141-146
• /
• 1990

A clinical workstation has been developed for the use in clinical ward. This system is connected to the Picture Archiving and Communication System previously installed. It provides the capabilities of image display, image processing, diagnostic report review, clinical lab data review and analytic diagrams presentation for the hospitalized patients in clinical ward. The performances of this system were evaluated during the 9 months. These results show typical aspects of clinical patterns in data transmissions, image studies and clinical lab data studies. These typical aspects should be counted in the further development of workstation for the clinical use.

• Proceedings of the KSRS Conference
• /
• 2007.10a
• /
• pp.317-320
• /
• 2007

This research focuses on a network based data distribution and visualization system of Multi-functional Tran-port SATellite (MTSAT). Institute of Industrial Science (IIS) and Institute of Earthquake Research Institute (ERI) both at University of Tokyo have been receiving, processing, archiving and distributing of MTSAT imagery with a direct receiving of High Rate Information Transmit (HRIT) since October 2006. A software package, mtsatgeo, is developed including radiometric correction, geometric correction and spatial subset, and they are available on a web-based data distribution and processing service accessed at http://webgms.iis.u-tokyo.ac.jp/.