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Evaluation of Body Movement during Sleep Using an Infrared Motion Sensor
sleep body movement EEG passive infrared type motion sensor linear discriminant analysis
2009/8/24
The present study was conducted in order to clarify the features of the occurrences of body movement during nighttime sleep and estimate the depth of sleep. Sleep experiments were conducted on seven h...
Noninvasive Measurement of Hemoglobin Concentration Using the Near-infrared Spectroscopic Imaging Method
hemoglobin concentration near-infrared light spectroscopy noninvasive measurement
2009/6/9
We have developed a new noninvasive method for measuring hemoglobin concentration called the “near-infrared spectroscopic imaging method.” This method is based on Lambert-Beer's law and on estimating ...
Safety assessment of near infrared light emitting diodes for diffuse optical measurements
Safety assessment diffuse optical measurements
2010/3/1
In this study, we demonstrate that the major risk source of the LED in direct contact with skin is the conducted heat of the LED semiconductor junction, which may cause serious skin burns. Adjusting o...