• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.2
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• pp.289-294
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• 2005

This paper deals with the analysis results of surge voltage and current measured on information devices installed in a power substation. The power recorder to measure surge voltage and current was connected to signal lines near power transformers and switches, and the time resolution of the power recorder is 4 MS/s. Peak value of the measured surge voltage and current were ranges of 500~1,300v and 500~3,100k, respectively. During the period of measurement, over 5~10 events per day were recorded. Consequently, information devices installed in around high voltage power facilities should be designed considering the surge voltage and current caused in the condition.

• The Journal of Korean Obstetrics and Gynecology
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• v.19 no.3
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• pp.247-256
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• 2006

Purpose : To research the Skin Resistance Variability(SRV) of premature ovarian failure(POF) patients by Autonomic Bioelectric Response Recorder(ABR-2000 system, Meridian, Korea) and report the specific results in SRV of POF patients. Methods : We measured SRV of 17 POF Patients who came to Conmaul Oriental Medical Hospital during August 2005 ${\sim}$ July 2006 by ABR-2000 system. We analyzed the results which height of graph Part was converted into 0${\sim}$10, and the readings of Low/Normal/High. Results : The mean value of graph height on each(1, 2, 3) part is lower than normal range(4-6) in POF patients. The distribution ratio of Low/Normal/High on each(1, 2, 3) part shows that there are much more Low proportion in POF patients. Conclusion : The low graph height of POF patients on 1, 2, 3 part means that conductivity & capacitance of POF patients is low, especially on head.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10d
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• pp.613-618
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• 2007

현재 하나의 TV에 연결할 수 있는 수많은 기기들이 개발, 판매되고 있다. 이렇게 연결하는 방법 중 현재 많이 사용하고 있는 방법 중에 하나인 HDMI의 경우에 HDMI-CEC라는 기능을 도입해서 연결된 각각의 기기를 따로따로 컨트를 하지 않고 하나의 리모컨으로 적용하는 방안을 제시하고 있다. 현재 가정에서 사용하는 DVD-Recorder에 HDMI-CEC 기능을 대응하여, 사용자가 원하는 기능을 여러 개의 기기를 직접 제어하는 것이 아니라, 단 하나의 키 동작으로 여러 개의 기기를 동시에 제어하는 시스템을 설계한다면 사용자에게 많은 편의를 줄 수가 있다. 그러나, 이러한 시스템을 설계했을 경우에 사용자가 원하는 동작을 정확히 안 하는 문제, 반응 속도가 너무 느려서 사용자가 동작을 안 하는 것으로 착각하게 만드는 문제와 HDMI-CEC의 Spec에서는 제시하고 있지 않으나 사용자의 편의물 위해서 지원해야 하는 경우가 있을 수 있다. 이 논문에서는 HDMI-CEC와 PDC의 spec에 대한 설명을 하고, HDMI-CEC를 적용한 시스템에 대한 설계를 한다. 그리고, 그 시스템에서 발견된 문제 중 정확한 동작을 하지 않는 TV가 꺼져있는 OnTouchPlay의 경우의 대한 처리와, 반응 속도가 느린 경우인 시스템을 부팅하는 경우의 반응시간을 줄이는 방안, 그리고 HDMI-CEC의 spec에는 없으나 사용자의 편의를 위해서 지원해야 하는 기능들에 대해 논한다.

• Journal of Veterinary Clinics
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• v.24 no.2
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• pp.218-224
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• 2007

Digital electrocardiogram (ECG) recorders are rapidly replacing to conventional paper ECG recorders. Digital ECG recorders have several advantages over conventional type ECG recorders, including better capability for data storage, better portability and better applicability in clinical settings. In this study, we presented 4 case studies related to cardiac rhythm disturbances, which were diagnosed and managed using a digital ECG recorder.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.18 no.1
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• pp.19-27
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• 2011

Purpose: This study was conducted to develop a respiratory nursing program using recorder playing for patients with asthma and to determine the effects of the program. Method: Participants were 26 patients with asthma (experimental group: 13, control group: 13). The experimental group participated in the respiratory nursing program for six months from April, to October, 2007. Content included playing a recorder, group education about asthma, and educational messages including cellular phone messages. The control group received usual care during the six months. Results: In this research the respiratory nursing program using recorders was developed in 3 stages: initial stage, advanced stage, and wrap up stage. Compared to the control group, fatigue status in the experimental group improved significantly as well as level of forced expiratory volume in 1 second. However significant differences were found in sleep status, mood, or quality of life. Conclusions: These results suggest that this respiratory nursing program for symptom management of patients with asthma led to improvements in self care activity. Nursing interventions are needed to maintain and further enhance the quality of life of these patients and the interventions should be implemented over a transition period.

• Journal of the Institute of Convergence Signal Processing
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• v.19 no.3
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• pp.125-132
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• 2018

KVN(Korean VLBI Network) introduced the Mark6 system of the MIT haystack observatory as a recorder for data recording up to 32 Gbps for VLBI(Very Long Baseline Interferometry) observation. The Mark6 recorder can record data at up to 32Gbps when two systems and 64 HDDs are installed. However, because of the unique recording method that is characteristic of Mark6, we are introducing a large amount of data into a virtual file system, or using a general RAID method, which causes data loss when reading and transferring files at the highest recording speed or file system have. The Flexbuff system, a software recorder developed by JIVE(Joint Institute for VLBI ERIC), can be configured to operate as a data recorder through RAID configuration and network upgrades. In particular, when installed in the Mark6 system, it can record VLBI data at a maximum speed of 32 Gbps with less loss of data compared to the existing Mark6 by utilizing Mark6 resources well. In this paper, we propose that the existing Mark6 system can be operated as Mark6-Flexbuff by installing jive5ab software, and it is verified through experiment that it can be effectively used for VLBI observation operation through data recording test.

• The monthly packaging world
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• s.217
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• pp.98-101
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• 2011

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.414-416
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• 2004

The intelligent PVR(Personal Video Recorder) is an enhanced PVR that provides viewers with some advanced features as well as pause, instant replay, search and skip forward found in conventional PVRs. By embedding a home server into a PVR, it is possible for an intelligent PVR to provide a powerful web-based management user interface constructed using HTML, graphics and other features common to web-browsers. When applied to other embedded systems, web technologies offer graphical user interfaces which are user-friendly, inexpensive, cross-platform and network-ready. It is the purpose of this paper to introduce implementation of intelligent PVR which is control by internet. We present the architecture of an home- server with a simple but powerful web-based network interconnection.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2001.05a
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• pp.20-25
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• 2001

In recent years, the concern about a user center design in increasing, and it's needed to task a user's visual cognitive characteristics for information presentation. Then this study aims to grasp user's cognitive characteristics about the information presentation by analyzing the fixation points. In the experiment, actually subject operated a copy machine. Recorded the fixation point movement of the operation panel by the eye mark recorder. Analysis examined the screen interface of the operation panel from the field of a fixation point trace. The top down type fixation oder by experience or the context became clear as a result. Furthermore, the difference of the fixation order by skill level was also examined. In this study, it was assumed that to grasp the visual cognitive characteristics becomes the key of efficient information.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.9 no.2
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• pp.63-76
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• 2001

The number of civil aviation aircraft registered in Korea has continuously increased. Accordingly the accidents accompanying loss of human or economic resources occurred repeatedly. But the analysis of flight data recorded in FDR was not done by ourselves in the accident investigation because of lack of analysis technology. Therefore, this study is performed to secure the safety of civil aviation by establishing systematic analysis ability of Flight Data Recorder. Through this study, download flight data to personal computer, editing interface file to convert from binary data to engineering data, three dimensional graphical analysis and numerical analysis are performed. For the analysis, the flight of B747-400 model aircraft between Narita(Japan) and Gimpo(Korea) was selected.