• Title/Summary/Keyword: Complex Physiological Signal

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A Study on Observation Techniques of Physiological Signal by Polyphase Envelope Detection (다상포결선검파법에 의한 생체신호의 검출에 관한 연구)

  • 이충웅
    • Journal of the Korean Institute of Telematics and Electronics
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    • v.15 no.5
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    • pp.25-28
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    • 1978
  • This paper deals with the development research on the application of the principle of polyphase envelope detectioal),2) to extract the envelope from the complex physiological signal waveforms, which otherwise would be very difficult to observe and determine. In order to verify the developed system, the experimental results are included.

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Clinical diagnostic study of Physiological Signal data measured on 58 cases of numbness with EAV(Electro-puncture According to Voll) (비증환자(痺證患者) 58례(例)에 대(對)한 EAV측정치(測定値)의 진단적(診斷的) 고찰(考察))

  • Han, Sang-Gyun;Ha, Chi-Hong;Cho, Myung-Rae;Ryu, Chung-Ryul;Lee, Byung-Ryul
    • Journal of Acupuncture Research
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    • v.18 no.4
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    • pp.91-100
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    • 2001
  • Background and Objective : Most diagnostic method for numbness were invasive and complex. So we need to simplify and objectify diagnostic method for numbness. Some study with EAV which is one of Physiological Signal Measuring Instruments, report significantly result as objective diagnostic method for other clinical symptom. By using EAV, we have obtained some physiological signal data from meridian-acupoints of 58 numbness cases. Objective and Methods : This study researched into the clinical statistics for 58 case who ware in numbness, and they ware treated with oriental medical care at the Dong-shin university oriental hospital during 1 year from April 3 2000 to March 30 2001. The data were analyzed and interpreted to compare with traditional differentiation of symptom-complexes, then further evaluated as the Five Evolutive Phases to make them differentiated. The EAV valus of Five Evolutive Phases were identified with the sequence of wood(木), fire(火), earth(土), steel(金), water(水). Results and Conclusion : These values of physiological signal were identical with standard differentiation of symptom-complexes of numbness which is the main cause of dishannonious flow of Qi and blood of the in the liver and deficiency of Qi and blood of the bladder with stagnancy of dampness. Among Five Evolutive Phases, Earth and wood values were increased, steel, fire and water were decreased significantly. This data imply the possibility of somewhat generalization from measuring instruments.

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An Evaluation of Driving Fatigue on Long-term Driving (운전 시간에 따른 피로도의 변화)

  • 김선웅;성홍모;박세진
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2002.05a
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    • pp.177-180
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    • 2002
  • The type of physiological stress involved in driving is probably complex, and a comprehensive study involving recording of physiological signals such as electrocardiogram(ECG), electromyogram(EMG). Changes in relevant Physiological parameters, such as ECG, EMG, reflected changes in driver status. In order to derive the mental and physical load of driving a motor vehicle from driving behaviour alone it is necessary to establish the relationship between changes in a driver's physiological parameters and behavioral parameters. In this study, we choose two different condition and investigated driver's status using HRV analysis method. Many previous studies have shown that increasing driving time causes a variation of HRV signal.

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Implementation of a portable telemetry system based on wavelet transform. (웨이블릿 알고리즘을 적용한 휴대용 텔레미트리 시스템)

  • 박차훈;서희돈
    • Proceedings of the IEEK Conference
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    • 2000.06e
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    • pp.113-116
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    • 2000
  • In this paper presents the portable wireless ECG data detection and diagnosis system based on discreet wavelet transform. An algorithm based on wavelet transform suitable for real time implementation has been developed in order to detect ECG characteristics. In particular, QRS complex, S and T waves may be distinguished form noise, baseline drift or artifacts. Proposed telemetry system that a transmitting media using radio frequency(RF) for the middle range measurement of the physiological signals and receiving media using optical for electromagnetic interference problem. A standard hi-directional serial communication interface between the telemetry system and a personal computer or laptop, allows read-time controlling, diagnosing and monitoring of system. A portable telemetry system within a size. of 65${\times}$125${\times}$45mm consists of three parts: a digital signal processing part for physiological signal detect or diagnose, RF transmitter for data transfer and a optical receiver for command receive. Advantages of proposed telemetry system is wireless middle range(50m) FM transmission, reduce electromagnetic interference to a minimum. which enables a comfortable diagnosis system at home.

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Signaling Protein Complex Formation in Detergent Resistant Membrane of Bovine Photoreceptor Rod Outer Segments

  • Liu, Han;Seno, Keiji;Hayashi, Fumio
    • Journal of Photoscience
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    • v.9 no.2
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    • pp.275-277
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    • 2002
  • We have recently found that a detergent-resistant raft like membrane (DRM) can be prepared from bovine rod outer segment membranes as a low-density buoyant fraction in sucrose density gradient ultracentrifugation. G protein (transducin) and its effector enzyme (phosphodiesterase: PDE) drastically change their affinities to DRM in the process of phototransduction. We report here that the recruitment of transducin and/or $^2$PDE to DRM has close relationship with their states in signal transduction. Active T$\alpha$/PDE-complex has a high affinity to DRM, whereas inactive transducin, or inactive PDE are excluded from DRM. Active T$\alpha$/PDE-complex seems to bind to a GTPase activating protein (GRS9) in multi- protein complexes localized on DRM. Physiological significance of the multi-protein complex on the raft-like membrane in vertebrate phototransduction would be discussed.

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Clinical diagnostic study on Physiological Signal data measured on 31 cases of lumbago with EAV(Electro-puncture According to Voll) (요통환자(腰痛患者) 31례(例)에 대(對)한 EAV측정치(測定値)의 진단적(診斷的) 고찰(考察))

  • Han, Sang-Gyun;Ha, Chi-Hong;Kim, Jae-Hong;Cho, Myung-Rae;Bae, Eun-Jeong;Shin, Young-Il;Yang, Ki-Yong;Hwang, Kyu-Jung;Lee, Byung-Ryul
    • Journal of Acupuncture Research
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    • v.19 no.1
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    • pp.101-110
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    • 2002
  • Background and Purpose : Most diagnostic method for lumbago were invasive and complex. So we need to simplify and objectify diagnostic method for lumbago. Some study with EAV which is one of Physiological Signal Measuring Instruments, report significantly result as objective diagnostic method for other clinical symptom. By using EAV, we have obtained some physiological signal data from meridian-acupoints of 31 lumbago cases. Objective and Methods : This study researched into the clinical statistics for 31 case who ware in lumbago, and they ware treated with oriental medical care at the Dong-shin university oriental hospital during 6 month from June 1 2001 to November 10 2001. The data were analyzed and interpreted to compare with traditional differentiation of symptom-complexes, then further evaluated as the Five Evolutive Phases to make them differentiated. The EAV valus of Five Evolutive Phases were identified with the sequence of wood(木), fire(火), earth(土)steel(金), water(水). Results and Conclusion : These values of physiological signal were identical with standard differentiation of symptom-complexes of lumbago which is the main cause of deficiency of Qi and blood of the kidney and bladder. Among Five Evolutive Phases, Earth and wood values were increased, steel, fire and water were decreased significantly. This data imply the possibility of somewhat generalization from measuring instruments.

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Active Spinning Training System using Complex Physiological Signals (복합 생체신호를 이용한 능동형 스피닝 트레이닝 시스템)

  • Kim, Cheol-Min;Kang, Gyeong-Heon;Kim, Eun-Seok
    • The Journal of the Korea Contents Association
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    • v.15 no.7
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    • pp.591-600
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    • 2015
  • Recently high interest in health and fitness has led to vibrant researches for the active fitness system to learn and enjoy the exercise program for oneself. In this paper, we design and implement the active spinning training system which enables user to have self-learning and experience of customized spinning training program by the biometric and movement information acquired from user's physiological signals. The proposed system provides the appropriate difficulty of spinning program which reflects the concordance rate of spinning dance gestures and the amount of exercising by analyzing the physical status of participant from his brain and pulse waves and recognizing the skeletal movement in real time. For the higher exercise effect, the system offers a virtual personal trainer to show the correct poses and controls the level of difficulty depending on the concordance rate of participant's motions. The experiment with various participants through the proposed system shows that it is able to help users in getting the available exercise effect in comparatively short time.

Immunohistochemistry of Paraffin-embedded Tissues by Super-signal Induction Method (슈퍼시그날 증폭 기술에 의한 파라핀 매몰조직의 면역조직화학염색)

  • Yun Young Gab;Lee Jang Cheon;Jang Seon Il
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.4
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    • pp.1154-1158
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    • 2004
  • The classical ABC (avidin-biotin peroxidase complex) method for immunohistochemistry in the paraffin-embedded tissues bring into being disadvantage such as low sensitivity of antigen detection and highly background. The biotinyl-tyramide conjugation recently introduced for sensitive immunohistochemistry was applied to light microscopy in paraffin-embedded pancreatic and liver tissues. The protocol consists of an indirect method in which 4-5㎛ tissue sections are reacted successively within a specific primary antibody, followed by a biotinylated secondary antibody, streptavidin-horseradich peroxidase (HRP), and then finally with biotinyl-tyramide. The labeling obtained for insulin and collagen antigen tested in pancreatic and liver tissues, respectively, was found to be highly specific with the labeling for each antigen confined to its particular cellular compartment. In this study, fish (flounder) serum was specially applied to remove nonspecific binding. Background levels and nospecific deposition of the staining were negligible. This results suggest that super-signal induction method by biotinyl-tyramide conjugate can readily applied to antigen detection of the paraffin-embedded tissues.

A Feasibility Study of Pulse Rate Per Respiration as an Indicator for the Reaction to Cold Stress (냉자극에 대한 맥율 변화 예비 연구)

  • Bae, Jang Han;Jeon, Young Ju;Kim, Hyunho;Kim, Jaeuk U.
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.28 no.6
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    • pp.668-673
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    • 2014
  • Cold and Heat pattern identification(CHPI) in traditional East Asian medicine(TEAM) is one of the major indicator to distinguish characteristics of disease and to determine treatment method. Basic parameters to determine CHPI include the pulse rate, respiration rate, and pulse power. Studies to associate physiological responses of human body by cold stress(CS) with CHPI in TEAM were rarely done so far. This study aims to explore the effects of cold stress on pulse signal via a feasibility study for three subjects and investigate some indices which can reflect autonomic nerve reaction(ANR). We measured radial pulse signals and respiration signal of the investigated subjects before the CS, during the CS which continues for 5 minutes, and immediately after the CS, respectively. Finally, we analyzed the pulse rate (P), respiration rate (R), pulse power, pulse depth, and pulse rate per respiration (P/R ratio). As a result, the P/R ratio showed a consistently decreasing tendency through the CS stimulation process, while other parameters behaved more complex and in subject-specific ways. It implies that, among candidate parameters, the P/R ratio is a simple but the most probable parameter that can be used as the ANR indicator. This result is also consistent with the theory in TEAM scripts, in which the P/R ratio is predicted to be a direct indicator for the CHPI. This pilot study shows that P/R ratio can be more appropriately associated with the ANR than heart rate or respiration rate alone. Extensive studies will be necessary to verify or confirm the P/R ratio as an appropriate and well defined parameter for ANR.

Signal transfduction pathways for infection structure formation in the rice blast fungus, Magnaporthe grisea

  • Lee, Yong-Hwan;Khang, Chang-Hyun
    • Proceedings of the Botanical Society of Korea Conference
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    • 1999.07a
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    • pp.41-44
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    • 1999
  • Magnaporthe grisea (Hebert) Barr (anamorph: Pyricularia grisea) is a typical heterothallic Ascomycete and the causal agent of rice blast, one of the most destructive diseases on rice (Oryza sativa L.) worldwide. The interactions between cells of the pathogen and those of the host involve a complex of biological influences which can lead to blast disease. The early stages of infection process in particular may be viewed as a sequence of discrete and critical events. These include conidial attachment, gemination, and the formation of an appressorium, a dome-shaped and melanized infection structure. Disruption of this process at any point will result in failure of the pathogen to colonize host tissues. This may offer a new avenue for developing innovative crop protection strategies. To recognize and capture such opportunities, understanding the very bases of the pathogenesis at the cellular and molecular level is prerequisite. Much has been learned about environmental cues and endogenous signaling systems for the early infection-related morphogenesis in M. grisea during last several years. The study of signal transduction system in phytopathogenic filamentous fungi offers distinct advantages over traditional mammalian systems. Mammalian systems often contain multiple copies of important genes active in the same tissue under the same physiological processes. Functional redundancy, alternate gene splicing, and specilized isoforms make defining the role of any single gene difficult. Fungi and animals are closely related kingdoms [3], so inferences between these organisms are often justified. For many genes, fungi frequently possess only a single copy, thus phenotype can be attributed directly to the mutation or deletion of any particular gene of interest.

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