• 융합보안논문지
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• 제20권4호
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• pp.217-225
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• 2020

최근 "사회적 거리 두기"로 인해 해외 여행객이 대폭 감소하는 반면 개인의 안전과 보안을 위해 CCTV나 전기경보 및 신호장치, 전기진단 및 의료기기에 대한 관심과 수요가 증가할 것으로 기대하고 있다. 본 논문의 목적은 공항 환승여객과 CCTV, 전기진단 및 의료기기, 전기경보 및 신호장치의 수출이 한국 수출에 미치는 영향을 살펴보면서 각 변수별 동조화현상을 찾아보는데 있다. 이를 위해 본 연구에서는 통계청 국가통계포털과 관세청 수출입 무역통계에서 2000년 1월부터 2020년 04월까지 총 231개 월별자료를 이용하였다. 실증분석결과, CCTV와 전기진단 및 의료기기의 수출이 한국 수출에 상대적으로 높은 동조화현상을 보여주었다. 전기경보 및 신호장치의 수출과 환승여객이 수출액과 일정 수준 동조화현상을 보여주었으나 상대적으로 약하게 나타났다.

• 대한한의진단학회지
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• 제9권1호
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• pp.125-130
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• 2005

Background and purpose: We evaluated the reliability of two electrodermal measurement devices on meridian skin areas; Electro Acupuncture according to Dr. Voll (EAV) method and newly developed MIR-1. Methods: Eighteen volunteers were tested repeatedly on the same condition with each device. To explore the intra-rater, inter-rater, and test-retest reliabilities, one rater tested each subject twice in succession, then the other rater tested the subject in a row. Finally, retests on the subjects with each device were performed 1 week later. The reliability was determined by Pearson correlation and intraclass correlation statistics. Results: EAV method showed poor reliability, while MIR-1 showed good reliability. Conclusion: It is suggested that further research on the reliability and useful device in both fields of clinical practice and biomedical research.

• 센서학회지
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• 제20권5호
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• pp.311-316
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• 2011

Monitoring the carbon dioxide concentration in arterial blood is vital for the evaluation and prevention of pulmonary disease. Yet, domestic pure arterial blood carbon dioxide sensor technologies are not being developed, instead all sensors are imported. In this paper, we develop a real time monitoring system for arterial blood partial pressure of carbon dioxide($pCO_2$) gas from the wrist by using a carbon micro-heater. The micro-heater was fabricated with a thickness of 0.3 ${\mu}m$ in order to collect the carbon dioxide under the skin. The micro-heater has been designed to perform temperature compensation in order to prevent damage to the skin. Two clinical trials of the system were undertaken. As a result, we demonstrated that a portable, transcutaneous carbon dioxide analysis($TcpCO_2$) device produced domestically is possible. In addition, this system reduced the analysis time significantly. Carbon films could reduce the unit price of these sensors by replacing the gold film used in foreign models. Also, we developed a real time monitoring system which can be used with optical biosensors for medical diagnostics as well as gas sensors for environmental monitoring.