pulses generated by the heart’s activity in the blood vessels during a specific unit of time (usually one minute). As a rule, the pulse rate coincides with the heart rate. Various factors, such as exercise, stress or certain diseases, can influence the pulse rate in the short or long ...
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Voltage pulses of 30-100 kV with a rise time of about 20 ns, a pulse duration of 50-250 ns, pulse repetition rate of 1-900 pulses per second, ... Yan,K.,van,... - 《Review of Scientific Instruments》 被引量: 141发表: 2001年 The design and operation of a compact high-voltage,...
For outcome measures where normative values are available, accuracy of clinical determination decreased with decreased pulse rate. Temporal resolution impacts duration and kinematic measures. However, the direction of these changes is unpredictable, indicating sensitivity and specificity are both affected. ...
Bedside estimation of the rate of rise of the carotid pulse is a standard clinical observation whose reliability has not been determined. To ascertain interobserver agreement (primary objective) and compare the velocity of rise of the carotid displacement (not pressure) pulse (supplementary objective)...
we report the direct generation of 50-fs pulses from a stretched-pulse Er-doped ring laser with all-fiber construction.The average output power was 56.4 mW under a 330 mW pump power with a repetition rate of 37.8 MHz,which had relatively high conversion efficiency of 17% for all-fiber ...
saturation and pulse rate through finger.The product is suitable for being used in family, hospital, oxygen bar, community healthcare, physical care in sports (It can be used before or after doing sports, and it is not recommended to use the device during the process of having sport...
A real-time noninvasive and unconstrained method is proposed to determine the respiratory rhythm and pulse rate with an under-pillow sensor during sleep. The sensor is composed of two fluid-filled polyvinyl tubes set in parallel and sandwiched between two acrylic plates. One end of each tube is...
Blood pressure tends to vary cross-culturally and is influenced by various factors including age, body composition and pulse rate. This paper reports the influence of age, body composition and pulse rate on blood pressure variability.: The data were collected from 1316 individuals (646 men and ...
The pulse oximeter uses a special type of light to see how much oxygen is in the red blood cells traveling through the blood vessels under your skin. The test is painless and quick. In just a few seconds, the device will show your heart rate and oxygen saturation level — the percentage...