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박테리아 운동 추진 구조 시스템의 생물리학적 이해와 인공적 프로펠러 모터 시스템과의 비교
정봉수(Bongsu Jung) 창조론오픈포럼 2014 창조론오픈포럼 Vol.8 No.2
In this paper, the author presents biophysical understanding of bacterial flagellum structure and comparison with man?made motor systems. Bacterial flagellar motor system is as one of the most sophisticated and wonderful nanomachines. The flagellar motor system is a great intelligent design in Biological, Biophysical, Mechanical, and Mathematical aspects. The author proposes that there is a package design theory in nature as a sophisticated intelligent design concept.
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수면의 질을 측정하기 위한 안대형 생체신호 측정기기 개발
안창선,임재관,정봉수,김영주,Changsun Ahn,Jaekwan Lim,Bongsu Jung,Youngjoo Kim 한국정보처리학회 2023 정보처리학회논문지. 컴퓨터 및 통신시스템 Vol.12 No.5
우리나라 3대 수면 질환으로는 코골이, 수면무호흡증, 불면증이 있다. 수면 부족은 만병의 근원이며 수면 부족으로 인한 질병은 심혈관계 질환, 인지장애, 비만, 당뇨, 대장염, 전립선암에 이르기까지 다양하게 나타난다. 수면 관리 중요성을 인식한 정부도 2018년 7월부터 수면다원검사를 국민건강보험 혜택을 적용해서 작은 부담으로 검사를 받아볼 수 있도록 하고 있다. 그럼에도 불구하고 불면증 환자는 시간적·공간적·경제적 부담감을 해소하고 일상생활 속에서 수면의 질을 관리할 필요가 있다. 이러한 문제를 해결하기 위해서 본 논문에서는 병원이 아닌 일상생활 속에서 수면관리에 활용할 수 있는 안대형 생체신호 측정기기를 개발하였다. 측정기기에서는 6개 생체신호(안구동작, 뒤척임, 체온, 산소포화도, 심박수, 오디오)를 측정할 수 있다. 사용되는 센서로는 안구동작, 뒤척임은 자이로스코프센서(MPU9250, InvenSense, 미국)가 사용되었다. 센서값 입력 범위는 258~460°/sec 단위로 조정되며, 입력 범위값 내에서 작동상태를 확인하였다. 체온, 산소포화도, 심박수는 센서(MAX30102, Analog Devices, 미국)를 사용하였다. 체온은 30~45℃ 작동상태를 확인했으며, 산소포화도 사용범위는 미사용상태는 0%이고 사용상태는 20~90%의 작동상태를 확인하였다. 심박수의 범위는 40~180 bpm에서 작동상태를 확인하였다. 오디오 신호는 센서(AMM2742-T-R, PUIaudio, 미국)를 통해서 생체신호를 측정하며 감도는 -42±1 dB이며 주파수 범위는 20~20 kHz에서의 작동상태를 확인하였다. 시스템 구성은 생체신호 측정기기와 데이터수집 장치로 PC 및 모바일 애플리케이션으로 구성되었다. 측정된 데이터는 모바일과 PC로 수집되며 수집된 데이터는 수면의 단계를 판단하고 수면 유도와 수면장애에 대한 사전 선별기능을 진행할 수 있는 기초자료로 사용될 수 있다. 앞으로 간편하게 가정에서 불면증 환자들에게 수면의 질을 측정할 수 있게 되어 불면증 환자들의 치료에 도움이 될 것으로 예상한다. The three major sleep disorders in Korea are snoring, sleep apnea, and insomnia. Lack of sleep is the root of all diseases. Some of the most serious potential problems associated with sleep deprivation are cardiovascular problems, cognitive impairment, obesity, diabetes, colitis, prostate cancer, etc. To solve these problems, the Korean government provided low-cost national health insurance benefits for polysomnography tests in July 2018. However, insomnia patients still have problems getting treated in terms of time, space, and economic perspectives. Therefore, it would be better for insomnia patients to be allowed to test at home. The measuring device can measure six biosignals (eye movement, tossing and turning, body temperature, oxygen saturation, heart rate, and audio). A gyroscope sensor (MPU9250, InvenSense, USA) was used for eye movement, tossing, and turning. The input range of the sensor was in 258°/sec to 460°/sec, and the data range was in the input range. Body temperature, oxygen saturation range, and heart rate were measured by a sensor (MAX30102, Analog Devices, USA). The body temperature was measured in 30 ℃ to 45 ℃, and the oxygen saturation range was 0% for the unused state and 20 % to 90 % for the used state. The heart rate measurement range was in 40 bpm to 180 bpm. The measurement of audio signal was performed by an audio sensor (AMM2742-T-R, PUIaudio, USA). The was -42 dB ±1 dB frequency range was 20 Hz to 20 kHz. The measured data was successfully received in wireless network conditions. The system configuration was consisted of a PC and a mobile app for bio-signal measurement and data collection. The measured data was collected by mobile phones and desktops. The data collected can be used as preliminary data to determine the stage of sleep and perform the screening function for sleep induction and sleep disturbances. In the future, this convenient sleep measurement device could be beneficial for treating insomnia.
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의료용 약물주입펌프의 조작스위치 내구성 검증 장비 개발 및 신뢰성입증시험
오상민(Sangmin Oh),신정훈(Junghun Shin),정봉수(Bongsu Jung),정재훈(Jaehoon Jung),김태형(Taehyung Kim),박근묵(Geunmook Park),서수원(Soowon Seo) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
Through market analysis it has been reported that many issues have occurred concerning the reliability of the medical drug infusion pump’s performance in administering drugs into the human body. A test method that demonstrates the reliability of the drug infusion pump is critical insofar as it is directly connected to the patient’s life, and so in this study we have analyzed its failure trends of each part through the analysis of the failure mode of the drug infusion pump, and we have developed equipment as well as a test method that allows demonstration of the reliability of the control switch, with which frequent failures have been observed as being expected to occur. On this basis, a lifespan test has been conducted on the switch, and a study has been conducted in order to demonstrate the reliability of the drug infusion pump by establishing a guaranteed lifetime.
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안창선 ( Changsun Ahn ),박용호 ( Yongho Park ),문정대 ( Jungdae Moon ),박종찬 ( Jongchan Park ),서영곤 ( Youngkon Seo ),손유락 ( Allen Sohn ),최윤종 ( Yoonjong Choi ),하양화 ( Yanghwa Ha ),정봉수 ( Bongsu Jung ),김영주 ( Youngjoo 한국정보처리학회 2023 정보처리학회논문지. 컴퓨터 및 통신시스템 Vol.12 No.2
Dengue virus transmission is a viral infection disease between humans and Aedes mosquitoes. Dengue is ubiquitous throughout the tropics and subtropical zones, where 1/3 of the global population live. The weather in Korea is also changing to subtropical weather, resulting in increased vulnerable Korean population to dengue virus transmission. It is important to control and prevent the dengue risk with track-recording & monitoring system. It is also required to have the control system to treat and monitor dengue patients with various cases such as regions, ages, genders according to the track-record of the disease. In this paper, we developed a Dengue Control & Prevention System, which can monitor and control dengue outbreaks in real-time with in-vitro diagnostic devices. Dengue Control & Prevention System is composed of in-vitro diagnostic device, which is a fluorescent immunoassay, and real-time monitoring system. In the future, we expect that our Dengue Control & Prevention System can be upgraded to have various disease information from Korea Disease Control and Prevention Agency for government policies and diseases control in Korea.
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