• 한국한의학연구원논문집
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• 제13권2호통권20호
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• pp.91-100
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• 2007

In this paper, We tried to analyze the patent trend on constitution diagnosis and treatment related technologies. For this, constitution diagnosis and treatment related technologies divided into 16 sub-technology by the advisory committee. And we analyzed patents applied in Korea, Japan, U.S.A., China, and Europe. The 16 sub-technology consist of pulse analyzer, skin diagnosis, tongue analyzer, face and body detector, face analyzer, voice analyzer, intelligence ontology, meridian diagnosis, infrared thermography, electric stimulation, laser, high and low frequency, physical, magnetic, and ultrasound therapy. As a result we found that patents of constitution diagnosis and treatment in Korea has been growing steadily in both quality and quantity since 1980s. The number of patent the pulse analyzer and low frequency therapy are larger than others. But applied relevant international patents, marketability of the patent and Cites per Patent (CPP) index are shown to be very low. In conclusion, to occupy key original technologies of the Oriental medical device, we need to apply more patent of the whole related technology and international patents.

• 전기학회논문지
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• 제56권10호
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• pp.1823-1825
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• 2007

Based on Faraday effect, the variation of current flowing through the conductor can be encoded as that of azimuth angle of light polarization propagating through the fiber coil wound onto the conductor. The amount of current can be obtained by measuring the variation of the light intensity transformed from that of the azimuth angle through a polarization analyzer. In this paper we propose a fiber-optic current sensor system that employs a fiber polarization analyzer as a sensor interrogation device. The fiber polarization analyzer was prepared by inscribing a long-period fiber grating on a high birefringent fiber. At the fixed wavelength of 1522.5 nm, the fabricated fiber device has the polarization extinction ratio of more than 25 dB. The measurement of large current up to 600 Arms was accomplished based on a simple fiber interrogation device and the measurement output of the sensor system showed a good linearity.

• Journal of Veterinary Science
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• 제22권1호
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• pp.14.1-14.11
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• 2021

Background: Quantitation of urine protein is important in dogs with chronic kidney disease. Various analyzers are used to measure urine protein-to-creatinine ratios (UPCR). Objectives: This study aimed to compare the UPCR obtained by three types of analyzers (automated wet chemistry analyzer, in-house dry chemistry analyzer, and dipstick reading device) and investigate whether the differences could affect clinical decision process. Methods: Urine samples were collected from 115 dogs. UPCR values were obtained using three analyzers. Bland-Altman and Passing Bablok tests were used to analyze agreement between the UPCR values. Urine samples were classified as normal or proteinuria based on the UPCR values obtained by each analyzer and concordance in the classification evaluated with Cohen's kappa coefficient. Results: Passing and Bablok regression showed that there were proportional as well as constant difference between UPCR values obtained by a dipstick reading device and those obtained by the other analyzers. The concordance in the classification of proteinuria was very high (κ = 0.82) between the automated wet chemistry analyzer and in-house dry chemistry analyzer, while the dipstick reading device showed moderate concordance with the automated wet chemistry analyzer (κ = 0.52) and in-house dry chemistry analyzer (κ = 0.53). Conclusions: Although the urine dipstick test is simple and a widely used point-of-care test, our results indicate that UPCR values obtained by the dipstick test are not appropriate for clinical use. Inter-instrumental variability may affect clinical decision process based on UPCR values and should be emphasized in veterinary practice.

• Transactions on Electrical and Electronic Materials
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• 제3권4호
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• pp.21-26
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• 2002

Color correction methods of chromaticity coordinates using Color Matching Function (CMF) were studied to develop a device-independent portable-type urine analyzer. The reflection spectra were measured for the degrees of 10 test items of the urine reagent strip (urine strip) to develop a portable-type urine analyzer. A computer simulation was performed to quantitatively distinguish the color reactions of the urine system, by using the spectral power distribution of Light Emitting Diode(LED), the reflection of a urine strip, and spectral sensitivity of a photodiode. To develop a device-independent system, chromaticity coordinates were modified to reduce the color deviations in the urine strip, by using the temperature compensation of LED and the color transformation by CMF. The experimental values obtained by developed urine system exhibited the accuracy above 95% for all color samples.

• 한국정보과학회논문지:시스템및이론
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• 제35권6호
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• pp.248-262
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• 2008

대용량 멀티미디어 파일의 증가와 개인의 디지털 정보의 중요성이 날로 증가하면서 저장장치는 고용량화, 고집적화 되는 방향으로 발전하고 있다. 따라서 저장장치에 발생되는 물리적인 오류는 단순히 작은 영역의 손상이 아닌 매우 넓은 영역에 대한 정보 손실로 이어진다. 이를 방지하기 위해서는 시스템을 사용하기 전에 물리적인 오류에 대한 시스템의 강인성과 대처 수준을 검증하고 사용해야 한다. SOAR(Storage Reliability Analyzer)는 검증의 핵심이 될 수 있는 물리적인 오류 발생 기능과 복구 기능을 가지고 있으며 이것은 시스템에 대한 신뢰성과 강인성을 검증 할 수 있는 유용한 도구이다. 이 기능을 보다 편리하게 사용하기 위해서 SOAR는 3가지의 특수한 오류 적용 기법과 파일시스템에 특화된 2가지 기법을 가지고 있다. 본 논문에서는 SOAR를 이용해서 어플리케이션부터 파일시스템까지 물리적인 오류에 대한 검증을 실제 수행하고 결과 분석을 진행하였다. 그러므로 SOAR는 물리적인 오류에 대한 시스템의 많은 문제점을 발견하였고 동시에 그 기능을 증명하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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• pp.413-416
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• 2007

Use ot Intelligent devices that work on the ANSI/EIA 709.1 protocol is increasing. In this study an ANSI/EIA 709.1 protocol analyzer that can monitor and analyze the packets on LonWorks network is designed and developed. The device is based on TMS320LF2407A processor for decoding data packets, and uses XScale processor for sending data to the application program on PC. The application program has various analysis features as well as basic monitoring function. The developed device can be used for debugging purposes in development of any kind of LonWorks devices, and also it is useful in maintenance of LonWorks network or Lon Works devices.

• 대한한방부인과학회지
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• 제30권3호
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• pp.65-78
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• 2017

Objectives: This study was aimed to develop a guideline for the application of diagnostic devices for menopausal syndrome. Methods: We conducted a literature review and a questionnaire survey on diagnostic devices including Digital Infrared Thermal Imaging (DITI), pulse diagnosis device, Heart Rate Variability (HRV), body composition analyzer, Yangdorak. Results: We retrieved some clinical values for usage of devices from the articles. Especially, DITI was useful to identify the pattern of body temperature distribution. The respondents answered that they diagnosed menopausal syndrome by using body composition analyzer (62.3%), DITI (60%), HRV (60%), pulse diagnosis device (45.7%), Yangdorak (34.3%). The respondents answered that they don't use diagnostic devices when they diagnosed menopausal syndrome because of absence of device, cost, difficulty of interpretation, substitution of another diagnostic method. After experts survey, it was recommended to use DITI, HRV, body composition analyzer. There was no consensus on the use of pulse diagnosis device, Yangdorak in diagnosing menopausal syndrome. Conclusions: We developed a guideline for the application of diagnostic devices for menopausal syndrome.

• 한국응용과학기술학회지
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• 제38권1호
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• pp.196-207
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• 2021

본 연구는 골프참여자들의 골프 디바이스 데이터의 신뢰, 만족 및 인지된 경기력에 대한 관계를 규명하는데 목적이 있다. 연구대상은 일반 골프참여자들을 대상으로 서울, 경기도, 강원도, 경상도, 충청도, 전라도, 제주도 등 7개 시, 도 지역에 온라인 설문을 통해 수집하였으며, 온라인 설문은 총 328부를 수집하여 사용되었다. 수집된 자료는 SPSSWIN 프로그램과 AMOS 를 이용하여 자료를 분석하였으며, 빈도분석, 확인적 요인분석, 신뢰도 분석, 상관관계분석, 구조방정식모형분석 및 경로분석을 실시하였다. 변인 간 관계를 검증한 결과는 다음과 같다. 첫째, 골프참여자들의 골프 디바이스 데이터의 신뢰는 만족에 정(+)에 유의한 영향을 미쳤다. 둘째, 골프참여자들의 골프 디바이스 데이터의 신뢰는 인지된 경기력에 영향을 미치지 않았다. 셋째, 골프참여자들의 골프 디바이스 데이터 만족은 인지된 경기력에 영향을 미치지 않았다. 결론적으로 골프참여자들이 골프 디바이스를 통해 제시된 데이터를 신뢰하고 만족한 결과를 얻고 있다는 것을 알 수 있었다. 하지만 인지된 경기력에는 영향을 미치지 못했다는 점에서 골프참여자들은 골프 디바이스를 경기력을 높여준다는 생각보다는 골프를 하기 위해서 당연히 사용해야 되는 것으로 생각할 수 있다.

• 한국인터넷방송통신학회논문지
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• 제17권5호
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• pp.125-130
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• 2017

PLC 등의 현장제어기기는 주요 이벤트 정보를 로깅하는 기능이 없기 때문에 사고분석이 힘들다. 따라서, PLC, IED와 같은 현장제어기기의 주요 이벤트 정보를 로깅하여, 사이버 사고 발생 시 분석이 가능한 정보 확보가 필요하다. 이벤트 로깅을 위한 현장제어기기(임베디드기기) 통신 프로토콜을 분석하기 위해서는 프로토콜 애널라이저(분석기)가 필요하다. 그러나 Wireshark와 같은 기존의 분석기는 페이로드 데이터 기반의 다양한 프로토콜 분석 및 분류가 어렵고 이벤트 로깅을 위한 대용량의 데이터 식별 및 추출을 처리하기에는 어려움이 있다. 따라서, 본 논문에서는 대용량의 이벤트 로깅을 위한 빅데이터 기반 현장제어기기 통신프로토콜 페이로드 데이터 추출을 위한 시스템을 연구개발하였다.

• JSTS:Journal of Semiconductor Technology and Science
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• 제14권3호
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• pp.339-344
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• 2014

This paper presents a novel bipolar junction transistor (BJT) based electrostatic discharge (ESD) protection device. This protection device was designed for 20V power clamps and fabricated by a process with Bipolar-CMOS-DMOS (BCD) $0.18{\mu}m$. The current-voltage characteristics of this protection device was verified by the transmission line pulse (TLP) system and the DC BV characteristic was verified by using a semiconductor parameter analyzer. From the experimental results, the proposed device has a trigger voltage of 29.1V, holding voltage of 22.4V and low on-resistance of approximately $1.6{\Omega}$. In addition, the test of ESD robustness showed that the ESD successfully passed through human body model (HBM) 8kV. In this paper, the operational mechanism of this protection device was investigated by structural analysis of the proposed device. In addition, the proposed device were obtained as stack structures and verified.