• Fibers and Polymers
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• 제7권4호
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• pp.446-449
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• 2006

The purpose of this study was to evaluate the comfort of PET clothing treated by UV. The physiological responses of the human body were investigated. Mean skin temperature and physiological signals such as Electroencephalogram (EEG), and heart rate (Electrocardiogram, (ECG)) were examined for 20 minutes during stable wearing conditions. Mean skin temperature was measured every two seconds using Ramanathan's method. Physiological responses were measured using Biopac MP100 series and analyzed using the software, Acqknowledge 3.5.2. Psychological effects were analyzed every five minutes. Comfort of untreated PET clothing decreased with the passage of time. Compared with PET clothing untreated, treated for 30 minutes, and treated for 90 minutes, the analysis of EEG showed that PET clothing treated for 90 minutes was the most comfortable after 20 minutes. In addition, the interval of the heart rate shown on the ECG was the highest in PET clothing treated for 90 minutes. Skin temperature was the lowest in PET treated for 90 minutes. We thus conclude that suitable UV irradiation would improve comfort.

• Korea-Australia Rheology Journal
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• 제21권1호
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• pp.39-46
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• 2009

Atherosclerosis is a disease that narrows, thickens, hardens, and restructures a blood vessel due to substantial plaque deposit. The geometric models of the considered stenotic blood flow are three different types of constriction of cross-sectional area of blood vessel; 25%, 50%, and 75% of constriction. The computational model with the fluid-structure interaction is introduced to investigate the wall shear stresses, blood flow field and recirculation zone in the stenotic vessels. The velocity profile in a compliant stenotic artery with various constrictions is subjected to prescribed physiologic waveform. The computational simulations were performed, in which the physiological flow through a compliant axisymmetric stenotic blood vessel was solved using commercial software ADINA 8.4 developed by finite element method. We demonstrated comparisons of the wall shear stress with or without the fluid-structure interaction and their velocity profiles under the physiological flow condition in the compliant stenotic artery. The present results enhance our understanding of the hemodynamic characteristics in a compliant stenotic artery.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2000년도 춘계 학술대회 및 국제 감성공학 심포지움 논문집 Proceeding of the 2000 Spring Conference of KOSES and International Sensibility Ergonomics Symposium
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• pp.318-327
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• 2000

Managerial intuition is a well-recognized cognitive ability but still poorly understood for the purpose of developing effective decision support systems. this research investigates whether the differences in accuracy of "time series forecasting" are related to the differences in one's cognitive style, using statistical test The hypotheses established in the research model did not have positive correlation The lack of correlation between "cognitive style and physiological measures" and accuracy in forecasting may be caused by uncontrolled external variable. Thus, further analyses on physiological characteristics and brainwaves are needed. The approaches such as neural network and data mining are proposed.

• 사상체질의학회지
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• 제24권3호
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• pp.50-59
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• 2012

Objectives In this research, the constitutional diagnosis based on the theory of Sasang constitutions were carried out to Japanese subjects living in Japan, and the external applicability of Sasang constitutional medicine was evaluated by analyzing the physiological symptoms and the pathological symptoms according to their constitutions. Methods Total 144 Japanese subjects who live in S city were invited from Mar. 2010 to Jul. 2011 for the research, and their constitutions were analyzed with constitution diagnosing tool that was developed by Korean institution of oriental medicine (KIOM) in 2011. The collected data was analyzed in terms of the physiological symptoms and the pathological symptoms according to the sasang constitutions with computer software of SPSS 17.0. Results In the physiological symptoms related to excrements, Soyangin more frequently did not have excrements of gold color (p=.034) and feel the tenesmus (p=.047) than the subjects of other constitutions. In the physiological symptoms related to cold & heat, Soyangin more frequently felt cold in feet and hands (p=.011), and Soeumin more frequently didn't like drinking water regardless of thirst (p=.017). In the physiological symptoms, Soyangin frequently felt dryness in eyes, and Taeumin frequently felt uncomfortable because of the phlegm. Conclusions The theory of Sasang constitution which is a Korean traditional medicine can also be applied to the health care of Japanese, and it can contribute to the health promotion of Japanese subjects.

• 성인간호학회지
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• 제16권2호
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• pp.276-287
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• 2004

Purpose: This study was undertaken to investigate the effects of foot reflexo-massage on physical, psychological, and physiological parameters in patients with osteoarthritis of the knee. Method: This study was employed non-equivalent control group pretest-posttest time series experimental design. The subjects of this study were 47 elderly patients with osteoarthritis of the knee from two different nursing homes in Deajeon. The patients were divided into two groups; 26 patients in experimental group, the rest in control group. Each patient in experimental group received the 30-minute foot reflexo-massage, 3 times per week for 4 weeks. The dependent variables of each patient were measured before treatment, after 2 weeks and after 4 weeks during the treatment session. The collected data was analyzed using the Social Package Social Science(version 10.0) software program. Result: There were significant differences in the flexion angle of both knees; the flexion and extension muscle strength of both knees; systolic blood pressure; POMS; plantaris skin temperature and blood velocity of dorsalis pedis artery between the two groups over different the three measurement times. Conclusion: The results suggest that foot reflexo-massage could be an effective intervention to improve physical, psychological and physiological parameters for patients with knee osteoarthritis.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1999년도 추계학술대회 논문집
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• pp.211-215
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• 1999

It is well known that a long-term exposure to a loud noise environment affects performance, since it distracts attention, and also is able to evoke stress accompanied by negative emotional states. The purpose of this study was to analyze dynamics of subjective and physiological variables during long-lasting (30 min) exposure to intensive white noise (85 dB[A]). Physiological signals on 23 college students were recorded by BIOPAC, Grass Neurodata systems and AcqKnowledge 3.5 software. Autonomic variables, namely skin conductance level (SCL), non-specific SCR number (N-SCR), inter-beat intervals in ECG (RR intervals), heart rate variability index (HF/LF ratio of HRV), respiration rate (RESP), and skin temperature (SKT) were analyzed on 5 min epoch basis. Psychological assessment (subjective rating of stress level) was also repeated on every 5 min basis. Regression and correlation analyses were employed to trace the time course of the dynamics of the subjective and autonomic physiological variables and their relationship. Results showed that intense noise evokes subjective stress with associated autonomic nervous system responses. However, it was shown that physiological variables endure specific changes in the process of exposure to loud white noise. Discussed are probable psychophysiological mechanisms mediating reactivity to long-term auditory stimulation of high intensity.

• Interdisciplinary Bio Central
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• 제1권1호
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• pp.5.1-5.4
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• 2009

This article is an addendum to the authors’ previous article (Kim, J. et al. (2008) Plant Cell 20, 307-319). The instrumentation and software described in this article were used to analyze the circadian leaf movement in the previous article. Here, we provide detailed and practical information on the instrumentation and the software. The source code of the LMA program is freely available from the authors. The circadian clock regulates a wide range of cyclic physiological responses with a 24 hour period in most organisms. Rhythmic leaf movement in plants is a typical robust manifestation of rhythms controlled by the circadian clock and has been used to monitor endogenous circadian clock activity. Here, we introduce a relatively easy, inexpensive, and simple approach for measuring leaf movement circadian rhythms using a USB-based web camera, public domain software and a Leaf Movement Assay (LMA) program. The LMA program is a semi-automated tool that enables the user to measure leaf lengths of individual Arabidopsis seedlings from a set of time-series images and generates a wave-form output for leaf rhythm. This is a useful and convenient tool for monitoring the status of a plant's circadian clock without an expensive commercial instrumentation and software.

• 문화기술의 융합
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• 제2권4호
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• pp.31-40
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• 2016

인체라는 하드웨어는 전기적 신호에 의한 세포 활성화에 대한 프로그램이 입력되는 생리적 소프트웨어인 문장에 의해서 생명력이 부여된다. 본 연구는 뉴런과 뉴런으로 전달되는 생리적 인지적 시스템의 오류로 신음하는 인체의 보다 나은 치료적 환경 조성을 위해 인간의 정신계에 희노애락(喜怒哀樂)의 정서를 전기적 신호 체계로 접속시킬 수 있는 전도체로서의 기능을 가진 인체의 소프트웨어인 정격 시조의 문장 프로그램을 통해 정격 시조의 문장뉴런이 인체의 뉴런 시스템에 시냅스 되어 마음의 메인보드를 작동시키는 원리를 인문학적으로 규명해보고자 하였다. 이 원리가 규명되면 어떻게 부작용을 최소한으로 줄이고 인체를 치료적 프로그램으로 이끌어 갈 수 있을 지에 대한 방법을 구상할 수 있게 된다. 연구 결과 정격 시조에서 아주 빠르게 마음의 메인보드를 작동시키는 강렬한 에너지원이 존재하는 것으로 판단될 수 있는 근거를 찾게 되었다. 한 수의 정격 시조를 접하고 혹은 한 음보의 정격 시조를 접하고 곧바로 원작인 정격 시조의 신호 체계를 이어받은 또 다른 문장으로의 새로운 부호화 및 재부호화가 치료적으로 재빠르게 형성됨이 확인되었기 때문이다. 이로써 인류에게는 미래에 부작용 없이 인체에 시냅스 되는 전도체로서의 문장과 인체에 장치된 마음의 메인보드 간의 상호작용의 기능을 통해 인간의 정신계를 풍요롭게 업그레이드 할 수 있는 문학치료의 가능성이 도출되었다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 춘계학술발표회
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• pp.917-918
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• 2005

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1998년도 추계학술발표 논문집
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• pp.225-229
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• 1998

The purpose of the current study was comparative analysis of autonomic and electrocortical responses to passive and active touch of the tektites with different subjective emotional preference. Perspective goal of the project is development of a template for classification of tactile stimuli according to subjective comfort and associated physiological manifestations. The study was carried out on 36 female college students. Physiological signals were acquired by Grass and B10PAC 100 systems with AcqKnowledge III software. Frontal, parietal and occipital EEG (relative power spectrum /percents/ of EEG bands - delta, theta, slow and fast alpha, low and fast beta), and autonomic variables, namely heart rate (HR), respiratory sinus arrhythmia (RSA), pulse transit time (PTT), respiration rate (RSP) and skin conductance parameters (SCL, amplitude, rise time and number of SCRs) were analyzed for rest baseline and stimulation conditions. Analysis of the overall pattern of reaction indicated that autonomic response to tactile stimulation was manifested in a form of moderate HR acceleration, RSP increase, RSA decrease (lowered vagal tone), decreased n and increased electrodermal activity (increased SCL, several SCRs) that reflects general sympathetic activation. Parietal EEG effects (on contra-lateral side to stimulated hand) were featured by short-term alpha-blocking, slightly reduced theta and significantly increased delta and enhanced fast beta activity with few variations across stimuli. The main finding of the study was that most and least preferred textures exhibited significant differences in autonomic (HR, RSP, PTT, SCR, and at less extent in RSA and SCL) and electrocortical responses (delta, slow and fast alpha, fast beta relative power). These differences were recorded both in passive and active stimulation modes, thus demonstrating reproducibility of distinction between most and least emotionally preferred tactile stimuli, suggesting influence of psychological factors, such as emotional property of stimulus, on physiological outcome. Nevertheless, development of sufficiently sensitive .and reliable template for classification of emotional responses to tactile stimulation based on physiological response pattern may require more extensive empirical database.