• Asian-Australasian Journal of Animal Sciences
• /
• 제16권8호
• /
• pp.1218-1223
• /
• 2003

The effects of type (high and low voltages) and time (3, 40 and 60 min postmortem) of stimulation on drip loss and meat color at 24 h post-mortem were determined on M. longissimus dorsi of 38 crossbred steers and heifers. In addition, the effect of pH early postmortem (70 min postmortem) on the rate and extend of meat tenderization was examined. Either high or low voltage stimulation at 3 min showed a tendency for faster pH decline (p=0.052) and higher drip loss (p=0.08), and improved the color dimensions of L*, a* and b* (p<0.01), compared to stimulation at 40 min. This was equivalent to approximately one unit of an AUSMEAT color chip. On the other hand, although there were significant differences in pH decline between high voltage stimulation at 40 and 60 min, and between low voltage stimulation at 40 min and control sides, drip loss and meat color did not differ significantly (p>0.05). The results suggested that early application of stimulation, regardless of type of stimulation, improved overall meat color at 24 h postmortem through its effect on faster glycolysing rate. However, if the pH decline was moderate, the benefit of electrical stimulation on meat color was not apparent. An intermediate pH decline resulted in the lowest shear force. Due to differential ageing rates the optimum pH at 70 min postmortem increased with ageing time from 5.96, 6.07, 6.12 and 6.14 for 1, 3, 7 and 14 days postmortem, respectively. This implied that a small difference in the rate of pH decline was important, especially carcasses stimulated for very early postmortem, and the optimum rate of pH decline varied with intended ageing period. The study suggests that the beneficial or adverse effects of electrical stimulation on drip loss, meat color and tenderness is determined by the rate of pH decline, rather than by stimulation treatment and time of application per se.

• 대한감각통합치료학회지
• /
• 제3권1호
• /
• pp.57-65
• /
• 2005

Objective : The purpose of this study was to investigate the effect of sensory stimulation for static balance on normal children. Sensory input was consisted of colors, and music tempo stimulation. Methods : Participants were consisted of 20 normal kindergarten children ranging in age from six to seven years. The static balance was tested by a BPM(Balance Performance Monitor). In this study one-way ANOVA was used and the statistical significance level of results was determined at 0.05. Results : 1. According to color stimulation, there was no significant difference in static balance among red, yellow, green(p>0.05). 2. According to music tempo stimulation, there was no significant difference in static balance, among the high music tempo and low music tempo children in a general environment(p>0.05). 3. However, both green color and low music tempo stimulation have a little effect on static balance on normal children. Conclusion : These results indicate the possibility that the application method of green color and low music tempo stimulation may help in the improvement of static balance for the disabled children. This study will be used as the foundational data of therapeutic environment for the disabled children.

• 한국산학기술학회논문지
• /
• 제16권5호
• /
• pp.3579-3586
• /
• 2015

본 논문은 온도 $25[^{\circ}C]$, 상대습도 50[RH%], 조도 1,000[lux] 및 기류 속도 0.02[m/sec]의 동일한 조건의 항온 항습실에서 감각자극에 노출되기 전, 쟈스민 향기 및 RED 조명의 단일감각자극, 쟈스민 향기와 RED 조명을 동시에 노출시킨 다감각 자극 변화에 따른 EEG, 학습능력, HRV 및 진동이미지를 측정하여 쾌적성, 집중력, 신체적 및 심리적 안정의 변화를 분석하였다. 연구결과 쟈스민 향기와 RED 조명의 다감각자극에서 상대 $S{\alpha}$파, SEF50, $SMR/{\theta}$ 및 SDNN이 향상되었고, 비대칭지수 $A_2$, 스트레스지수, 피로도 및 HRT는 감소하였다. 또한, 진동이미지의 긴장/불안과 스트레스는 감소하였다. 따라서 쟈스민 향기와 RED 조명의 다감각자극이 쾌적성, 작업능률의 생산성 및 주의집중력과 같은 뉴로에너지를 향상시키기 위하여 효과적인 것을 알 수 있었다.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
• /
• pp.1628-1630
• /
• 1997

The purpose of this study is to see the method of the analysis of EEG(Electroencephalography) whcih is a nonlinear system, to quantize human emotion under color stimulation using the analysis of EEG. The result of this study would be used clinical study and development fo image instruments with color. In this study, the method of the analysis of EEG is power spectrum using FFT(Fast Fourier Transform) and the modelling of EEG under color stimulation base on back propagation Neural Networks ond of AI(Artfical Intellignece) skills. First, input layer make a match to relative power which get analyzing s in 4 channels, and output layer make a match to color stimulation which is measured human emotion. Finally, weights of each neurons determine by learing back porpagation Neural Networks.

• 한국정밀공학회지
• /
• 제24권1호
• /
• pp.101-109
• /
• 2007

In situations of spatio-temporal perception about visuo-auditory stimulus, researches propose optimal integration hypothesis that perceptual process is optimized to the interaction of the senses for the precision of perception. So, when the visual information considered generally dominant over any other sense is ambiguous, the information of the other sense like auditory stimulus influences the perceptual process in interaction with visual information. Thus, we performed two different experiments to certain the conditions of the interacting senses and influence of the condition. We consider the interaction of the visuo-auditory stimulation in the free space, the color of visual stimulus and sex difference of testee with normal people. In first experiment, 12 participants were asked to judge the change in the frequency of audio-visual stimulation using a visual flicker and auditory flutter stimulation in the free space. When auditory temporal cues were presented, the change in the frequency of the visual stimulation was associated with a perceived change in the frequency of the auditory stimulation as the results of the previous studies using headphone. In second experiment, 30 male and 30 female were asked to judge the change in the frequency of audio-visual stimulation using a color of visual flicker and auditory flutter stimulation. In the color condition using red and green. Both male and female testees showed same perceptual tendency. male and female testees showed same perceptual tendency however, in case of female, the standard deviation is larger than that of male. This results implies that audio-visual asymmetry effects are influenced by the cues of visual and auditory information, such as the orientation between auditory and visual stimulus, the color of visual stimulus.

• 한국산학기술학회논문지
• /
• 제19권1호
• /
• pp.615-621
• /
• 2018

본 연구에서는 에너지절감과 실내쾌적성을 높이기 위하여 색온도, 아로마 및 소리 변동리듬의 자극을 가하여 비교분석하였다. 온도$25[^{\circ}C]$, 상대습도 50[RH%], 기류속도 0.02[m/s] 및 조도 1000[lux]가 유지되는 항온항습실에서 뇌파, 심박동 변이 및 바이브라이미지가 측정되었다. 자극 종류는 자극을 가하기 전, 소리 변동리듬 a=1.106 재즈 음원으로 이루어지는 단일자극 그리고 붉은 조명, 아로마향기 및 소리 변동리듬 a=1.106 재즈 음원으로 이루어지는 다감각자극의 세종류로 측정이 이루어졌다. 변동리듬 a=1.106의 재즈 음원, 붉은 조명 및 아로마향기의 다감각자극에서 생산성과 집중력이 향상되었고, 스트레스지수와 피로도가 감소되었다. 또한 변동리듬 a=1.106의 재즈음원, 붉은 조명 및 아로마향기의 다감각자극에서 심박동이 안정되게 유지되었으며, 바이브라이미지의 긴장도와 스트레스 역시 감소되었다. 변동리듬 a=1.106 음원, RED조명 및 쟈스민 향기의 다감각자극이 쾌적성과 집중력 향상에 효과적이라는 것을 알 수 있었으며, 단일감각에 노출되기 전보다 뉴로에너지가 증가한다는 것을 알 수 있었다. 변동리듬 a=1.106 음원, RED조명 및 쟈스민 향기의 다감각자극이 자극을 가하기전보다 또한 단일감각자극을 가했을 때 보다 뉴로에너지가 증가된다는 것을 알 수 있었다.

• Korean Journal of Acupuncture
• /
• 제28권1호
• /
• pp.53-60
• /
• 2011

Objectives : Cupping therapy has been used as various treatment methods in oriental medicine clinic for a long time. Specially, Cupping stimulation caused skin hyperpigmentation which has been used as diagnosis method for extravasated blood & inner organs functional disease. But it was difficult to quantitatively measure and analyze the interrelation between extravasated blood and skin hyperpigmentation. The aim of this study is to measure the acupoint's RGB and melanin change pattern by stimulating under fixed 80kPa negative pressure and to evaluate the extravasated blood. Methods : To evaluate extravasated blood, 10 acupoints (left/right BL13, BL15, BL18, BL20, BL23) were stimulated by treatment 80kPa negative pressure for 1 minute. And then we measured the acupoints' skin color change patterns using the color meter, followed by RGB analysis and melanin change pattern. Results and Conclusions : We could observe the correlation of the acupoints' skin color condition related with RGB change pattern. All acupoints' color change degree were different. Regardless of acupoints' color degree due to extravasated blood, we observed in common the fact that RGB values decreased after stimulation and steadily increased according to time. We observed that melanin index increased after stimulation and recovered before stimulation-condition after the lapse of time. In other words, we confirmed the correlation between raised color change degree and $L^*a^*$ index change pattern. Therefore we observed the possibility of charting the $L^*a^*$ index following extravasated blood.

• 대한의용생체공학회:학술대회논문집
• /
• 대한의용생체공학회 1997년도 춘계학술대회
• /
• pp.422-425
• /
• 1997

The purpose of this study is to estimate human sensibility quantitatively under color stimulation. We measured biological signals such as EEG, ECG, skin conductance and the number of respiration and eye blinking that were compared with color sensibilities mutually. Our result showed that red, yellow and violet color provoked active and exciting senses dominatively and blue, cyan, pink, and black color were involved in tranquil and resting emotions deeply. Our quantitative estimations of color sensibilites are useful in the design of manufactured goods and color therapy.

• International journal of advanced smart convergence
• /
• 제8권4호
• /
• pp.82-92
• /
• 2019

The appropriate use of color and light can increase psychological stress or feelings of mental stability. As such, many people currently use color therapy, which provides relaxation and stability through color stimulation. Many people currently use color therapy, which provides relaxation and stability through color stimulation. The smartphone-based psychological color therapy system that is to be developed through the study is a method for relieving stress. This study examines a method of using smartphones to understand user's emotional information such as types of stress and to provide color therapy information regarding these emotions. The goal of this study is to use the user's smart phone to provide color therapy that employs the user's emotional information. The intelligent emotion system, which uses platforms such as mobile devices and the PC, was designed considering the user's context, and it provides the user with various data formats such as images, video, text, audio, to send results to the user. The system was developed in the form of a service-based mobile application. The study designed an emotional color therapy system that uses a smartphone to measure the user's stress and provides appropriate color therapy.

• 한국산학기술학회논문지
• /
• 제13권1호
• /
• pp.133-138
• /
• 2012

사람의 신체 중 손, 발, 얼굴 부위는 오장과 연계되어 있다. 특히 발은 '제2의 심장'이라고까지 불러지고 있다. 이것은 발의 건강이 인체의 건강을 유지할 수 있고 혈액순환에도 중요하다는 의미도 있다. 따라서 본 논문에서는 신장과 연관된 발 지압점 자극에 따른 얼굴 색상의 변화를 분석하고자 한다. 이를 위해 신장에 이상이 없는 20대 남성 10명을 대상으로 신장 발 지압 전과 후의 얼굴 영상을 수집하고 얼굴 영역 중 신장을 나타내는 지각 부위의 Lab 색체계에서 L값과 CMYK 색체계에서 K값을 측정하였다. 실험 결과 90%의 피실험자가 신장 발 지압 후에 L값이 증가하고 K값이 감소하는 현상을 나타냈다. 결론적으로 신장 발 지압 자극에 따른 지각 부위의 색상 변화를 통해 발지압의 효과성을 객관적으로 입증하는 실험을 수행하였다.