Quincke's Pulse

Limit for Pulse Compression by Pulse

Combining pulse oximetry and NIRS: Pulse Spectroscopy

Pulse oximetry and NIRS are fundamental technologies in anesthesia and critical care for monitoring oxygenation of the arterial blood and the tissue. Both technologies are based on photometric or spectroscopic methods. Combining both technologies in one sensor-system is the next step for advances in clinical monitoring to get better information about oxygenation and perfusion of patients. A new...

Ankle Pulse Significance of absent Ankle Pulse

The inability to detect the pulsation of the posterior tibial artery behind the internal malleolus, or of the dorsalis pedis artery, is widely used as an important physical sign. In the patient with symptoms or signs of ischaemia of the foot, the absence of pulses is regarded as highly significant. On the other hand, the incidental discovery of an impalpable ankle pulse in a patient who does no...

Pulse to Pulse Encoding in Optical Communications

Optical pulsing of a laser beam provides a convenient manner for transmitting digital information, and such procedures have led to well-accepted classes of pulse amplitude and pulse position modulation formats. However the excessive pulse dispersion and background light bursts that characterize several optical channels severly limit performance and achievable data rates. One procedure for comba...

Regular Pulse Trains in Chaotic pulse Bursts

Electric field pulse bursts generated by lightning flashes are considered as sources of high radio frequencies. In this study, an analysis of pulse bursts in electric field records of 30 negative cloud to ground lightning flashes recorded in the southern coastal area of Sri Lanka is presented. Sixty-four percent (64%) of pulse bursts are typical chaotic pulse trains (CPT). Twenty-four percent (...