• 대한의용생체공학회:의공학회지
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• 제26권6호
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• pp.399-406
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• 2005

In these days, HIS(Hospital Information System) raise the quality of medical services by effective management of medical records. As computing environment was developed, it is possible to search information quickly. But, standard medical data exchange is not completed between medical clinic and another organ so far. In case of patient transfer, past medical record was not efficiently transmitted. It be feasible treatment delay or medical accident. It is trouble that medical records is transferred by a person and communicate with each other. Extensible Markup Language (XML) is a simple, very flexible text format derived from SGML. Originally designed to meet the challenges of large-scale electronic publishing, XML is also playing an increasingly important role in the exchange of a wide variety of data on the Web and elsewhere. Form in system of company product, relative organs that handle bio-signal data is each other dissimilar and integration and to transmit to supplement bottleneck this research uses XML. In this study, it is discussed about sharing of medical data using XML web technology to standard medical record between hospital and relative organization The data structure model was designed to manage bio-signal data and patient record. We experimented about data transmission and all-in-one between different systems (one make use of MS-SQL database system and the other manage existent bio-signal data in itself form in file in this research). In order to search and refer medical record, the web-based system was implemented. The system that can be shared medical data was tested to estimate the merits of XML. Implemented XML schema confirms data transmission between different data system and integration result.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 추계학술대회
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• pp.403-406
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• 1997

Electrogastrogaphy(EGG) is the technique by which gastric myoelectrical activity is recorded noninvasively, from electrodes on the abdominal skin. Despite many attempts made over the decades, the clinical application of the EGG signal has not improved to the identification of waveform characteristics using comparison of EGG signal to be detected other EGG system. Cutaneous measurements of EGG are yet to be standardized in methods of detection and analysis. This may be responsible in part for some of the variability in the results. Thus, we develope EGG system composed of amplifiers, analysis methods, patient database or standardization. we introduce configurations of EGG system and their functions. Several important EGG parameters are introduced, including the dominant frequency and power of the EGG, the relative, period EGG-dominant frequency and power, the instability coefficient of EGG-dominant frequency and power, standard deviation, the percentage of running spectrum activity of gastric slow waves.

• Archives of Pharmacal Research
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• 제25권6호
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• pp.759-769
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• 2002

Mutated forms of ras are found in many human tumors and the rate of incidence is significantly higher in colon and pancreatic cancers. The protein product from the ras oncogene is a small G-protein, $p21^{ras}{\;}(Ras)$ that is known to playa key role in the signal transduction cascade and cell differentiation and proliferation. Mutated Ras is unable to regulate itself and remains constantly activated, leading to uncontrolled cell growth. The function of Ras in signal transduction requires its location near the growth factor receptor at the cell membrane. However, Ras does not have a transmembrane domain. Ras requires farnesylation to increase its hydrophobicity and subsequent plasma membrane association for its transforming activity. This key post-translational modification is catalyzed by the enzyme Ras farnesyltransferase (FTase), which transfers a farnesyl group from farnesylpyrophosphate to the C-terminal cysteine of the Ras protein. The requirement has focused attention on FTase as a target for therapeutic intervention. Selective inhibition of FTase will prevent Ras protein from association with the plasma membrane, leading to a disruption of oncogenic Ras function.

• 감성과학
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• 제12권3호
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• pp.289-298
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• 2009

본 연구에서는 상용화된 MP3-playing 의류와 생체신호 센싱 의류 제품에 따라 소비자들의 수용모델에 있어서 차이가 있는지를 분석하였다. 제품종류에 따른 구성변수의 차이를 분석하기 위하여 SPSS 15.0 package를 사용하여 t-test를 하였고, 구조방정식 모형에 있어서 제품종류에 따라 각 경로의 차이를 밝히기 위하여 AMOS 5.0을 이용한 다중집단 분석을 실시하였다. 총 557부의 온라인 설문에 대한 유효 표본을 분석한 결과, 소비자들은 지각된 사용용이성은 MP3-playing 의류를 높게 인식하였으나 지각된 유용성, 지각된 가치, 태도, 수용의도는 모두 생체신호 센싱 의류를 MP3-playing 의류에 비해 상대적으로 높게 인식하는 것으로 나타났다. 상용화된 제품의 판매가격에 대한 소비자들의 인식을 밝히고자 투입한 지각된 가치는 소비자들의 태도나 수용의도를 형성하는데 중요한 매개역할을 하는 것으로 입증되었다. 제품의 종류에 따른 특성상 소비자들의 수용모델에 있어서 경로의 차이도 발생했다. 생체신호 센싱 의류의 경우 MP3-playing 의류에서는 지지되었던 '지각된 유용성$\rightarrow$태도' 경로가 기각되었고 '지각된 가치$\rightarrow$태도'의 경로가 상대적으로 높게 나타났으며 MP3-playing 의류보다 지각된 가치의 매개 역할이 더 높게 분석되었다. 이와 같은 결과를 고찰해 볼 때, 스마트 의류는 이제 상용화 초기 단계에 있으므로 소비자들은 구매의사결정과정 중 필요의 인식이나 정보의 탐색단계에 있을 것이므로 이에 필요한 효과적인 상용화 전략의 수립이 필요하다고 할 수 있다.

• 한국입자에어로졸학회지
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• 제13권1호
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• pp.25-31
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• 2017

This paper offer the characteristics for the detection and classification of biological and non-biological aerosol particles in the air by using laser-induced-fluorescence (LIF) based Bio-aerosol Detection System (BDS). The BDS is mainly consist of an optical chamber, in-outlet nozzle system, 405 nm diode laser, an avalanche photo detector (APD) for scattering signal and photomultiplier tubes (PMT) for fluorescence signals in two different wavelength range ; F1, 510-600 nm and F2, 435-470 nm. The detection characteristics, especially ratio of fluorescence signal intensity were examined using well-known components : polystylene latex (PSL), fluorescence PSL, $2{\mu}m$ of SiO2 micro sphere, dried yeast, NADH, ovalbumin, fungicide powder and standard dust. The results indicated that the 405 nm diode laser-based LIF instrument can be a useful bio-aerosol detection system for unexpected biological threaten alter in real-time to apply for dual-use technology in military and civilian fields.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2009년도 정보 및 제어 심포지움 논문집
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• pp.357-359
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• 2009

In this paper, the 2.4GHz doppler radar system consisting of the doppler radar module and a baseband module were designed to detect heartbeat and respiration signal without direct skin contact. A bio-radar system emits continuous RF signal of 2.4GHz toward human chest, and then detects the reflected signal so as to investigate cardiopulmonary activities. The heartbeat and respiration signals acquired from quadrature signal of the doppler radar system are applied to the pre-processing circuit, amplification circuit, and the offset circuit of the baseband module. ECG(electrocardiogram) and reference respiration signals are measured simultaneously to evaluate the doppler radar system. As a result, the respiration signal of doppler radar signal is detected to 1m without complex digital signal processing. The sensitivity and calculated from I/Q respiration signal were $98.29{\pm}1.79%$, $97.11{\pm}2.75%$, respectively, and positive predictivity were $98.11{\pm}1.45%$, $92.21{\pm}10.92%$, respectively. The sensitivity and positive predictivity calculated from phase and magnitude of the doppler radar were $95.17{\pm}5.33%$, $94.99{\pm}5.43%$, respectively. In this paper, we confirmed that noncontact real-time heartbeat and respiration detection using the doppler radar system has the possibility and limitation.

• 한국융합학회논문지
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• 제9권2호
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• pp.303-311
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• 2018

스쿼트운동은 안전하고 효과적인 운동성과를 기대할 수 있는 중요한 프리웨이트운동의 하나로 하체강화운동에 가장 효과적인 운동으로 알려져 있다. 인터렉티브 스쿼트운동 장치를 활용하여 동적인 운동과정을 단순화하여 스쿼트 운동 동작을 모델링하고 이를 기반으로 한 생체신호 및 동작 분석을 수행할 수 있으며 또한 장치를 통해 사용자 자세교정을 통해 올바르고 효과 높은 스쿼트운동 과정을 확립할 수 있다. 제안된 모델링을 기반으로 설계된 풋플레이트에 위치한 로드셀의 검출된 신호를 활용하여 스쿼트동작을 생체신호검출과 검출된 신호처리과정을 거쳐 스쿼트운동의 오류동작을 검출해 내는 신호출력을 확보할 수 있다. 본 논문에서 제안된 인터랙티브 스쿼트운동장치의 설계방법과 동작의 안전성 분석방법은 생체역학 신호처리 방법에 기인하며 사용자의 스쿼트 운동자세를 해석을 위한 검출된 생체신호 및 동작신호를 통해 올바르지 못한 스쿼트 동작을 교정함으로서 바른 스쿼트 운동을 유도할 수 있으며 연구 결과를 VR 장치에 적용하거나 운동 평가를 위한 장치로 활용할 수 있다.

• 한국정보통신학회논문지
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• 제12권11호
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• pp.2097-2104
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• 2008

오늘날 가정은 더 이상 의식주를 해결하는 곳이 아니다. 이제 홈 네트워크는 예전 말이 되었고 가정 내 디지털 가전기기들은 OSGi나 UPnP 등이 확장되어 언제 어디서나 인터넷을 통해 자동 제어되고 있다. 본 연구는 OSGi나 UPnP 확장을 통해 디지털 홈 네트워크 미들웨어를 기본 제공하고 JESS 추론 엔진을 통해 스마트 홈 네트워크를 구성한다. 그리고 휴대용 심전도, 혈압, 맥박, 체온 등의 생체 신호 측정 센서를 통하여 생체 인식 기반스마트 홈 미들웨어를 제공하여, 사용자가 집에서 머무르는 동안 사용자와 근접하여 사용자가 요구하는 홈서비스를 예측하여 자동으로 제공해 주며, 제공된 홈서비스가 사용자에게 미치는 스트레스를 분석하여 사용자가 가장 편안하게 느끼는 홈서비스를 추천하고 사용자의 건강 상태를 실시간으로 모니터링 하여 사용자의 건강 상태가 나빠지면 자동으로 사용자, 가족 그리 고 의사에게 자동으로 알려 주는 시스템을 구축한다.

• 한국멀티미디어학회논문지
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• 제21권5호
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• pp.609-616
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• 2018

In this paper, we designed a multimodal bio-signal measurement system to observe changes in the brain nervous system and vascular system during sleep. Changes in the nervous system and the cerebral blood flow system in the brain during sleep induce a unique correlation between the changes in the nervous system and the blood flow system. Therefore, it is necessary to simultaneously observe changes in the brain nervous system and changes in the blood flow system to observe the sleep state. To measure the change of the nervous system, EEG, EOG and EMG signal used for the sleep stage analysis were designed. We designed a system for measuring cerebral blood flow changes using functional near-infrared spectroscopy. Among the various imaging methods to measure blood flow and metabolism, it is easy to measure simultaneously with EEG signal and it can be easily designed for miniaturization of equipment. The sleep stage was analyzed by the measured data, and the change of the cerebral blood flow was confirmed by the change of the sleep stage.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2003년도 생물공학의 동향(XIII)
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• pp.687-687
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• 2003