• Journal of Korean Electronics
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• v.5 no.11
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• pp.90-93
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• 1985

• Journal of Korean Electronics
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• v.12 no.3
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• pp.7-21
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• 1992

• The Magazine of the IEIE
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• v.10 no.3
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• pp.43-49
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• 1983

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.32 no.2
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• pp.147-150
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• 2019

There is a need for the development of transparent conductive materials that are economical and environmentally friendly with exhibit low resistivity and high transmittance in the visible spectrum. In this study, the deposition rate and uniformity of Al-doped ZnO-thin films were improved by changing the Z-motion of the sputtering system. The deposition rate and the uniformity were determined to be 3.44 nm/min and 1.23%, respectively, under the 10 mm Z-motion condition. During $O_2$ plasma treatment, the intrusion-type metal elements in the thin film were reduced, which contributed to an oxygen vacancy reduction in addition to structural stabilization. Moreover, the sheet resistance was more easily saturated.

• The Science & Technology
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• v.8 no.6 s.73
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• pp.6-7
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• 1975

최형섭 과기처장관은 5월 21일 과기처 상황실에서 「현재 건설중인 충청 대덕연구학위도시에 12개 국고립기관이 입주할 것이라」고 밝혔다. 최장관은 또 「정부는 상호 중복된 업무를 담당하는 연구 기관의 통폐합을 검토하고 있으며 이들 기관의 보다 효과적인 연구수행을 위해 각종실험 기기와 연구원의 기준을 협의하여 연내로 유치할 계획이라 」고 말했다. 최장관은 「앞으로 일반기업연구기관도 유치할 방침이며 기업연구기관이 입주 할때는 대통령형 7178호(특정연구기관 육성법)에 따라 동등한 혜택을 받게된다」고 밝혔다. 입주키로 결정을 본 12개기관은 다음과 같다. △국립공업표준시험소 △국립농업자재검사소 △국립농산물검사소 △국립농산물시험검사소 △중앙수산검사소 △중앙전매기술연구소△식품가공연구소△주류기술연구소△철도기술연구소△지질광물연구소△전자통신연구소 △국립보건원일부

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.11
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• pp.2111-2118
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• 2008

This parer propose a U-dormitory management system based on 13.56MHz RFID system. The proposed U-dormitory management system consists of three parts, the RFID hardware system, the middleware, and the application. RFID hardware system uses 13.56MHz frequency which is suitable for a close range. The middleware is implemented to accept the RFID hardware system values using RS-232c communication method and forward the values to the application. The application is designed to make the DB using the forwarded Haloes, and works based on the DB. The efficacy of the Proposed U-dormitory management system is verified by means of experiments. In the experiments, we set up the system to the dormitory of Daeduk College to show the improvement results of proposed system.

• The Journal of Korean Institute of Information Technology
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• v.15 no.12
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• pp.157-164
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• 2017

Mobile ECG signal measurement is a technique to measure small signals of several mV, and many studies have been conducted to remove noise including wandering scheme. Removal of the equipotential line noise caused by shaking or movement of the electrode cable is one of the core research contents for the electrocardiogram measurement. In this study, we proposed a modified step-size of combined NLMS(normalized least squares) and DLMS(delayed least squares) adaptive filter to eliminate baseline noise from ECG signals. The proposed method mainly adjusts initial filter step-size to reduce distortion of original ECG signals characteristic after eliminating baseline noise. The modified filter step-size is scaled by filter order size and distortion minimization factor. This method is suitable for portable ECG device with a small processor and less power consumption. This technique also decreases computation time which is essential for real-time filtering. The proposed filter also increase the signal to noise ratio (SNR) compared to conventional NLMS filter.