Results 21 to 30 of about 4,099,910 (388)
Pulse Wave Velocity in Atherosclerosis
Frontiers in Cardiovascular Medicine, 2019 Early detection of subclinical atherosclerosis is important to reduce patients' cardiovascular risk. However, current diagnostic strategy focusing on traditional risk factors or using risk scoring is not satisfactory. Non-invasive imaging tools also have
Hack‐Lyoung Kim, Sang-Hyun Kim
semanticscholar +1 more source
Electrical engineering & Electromechanics, 2017 Purpose. Investigations of the characteristics of pressure waves presuppose the registration of the total profile of the pressure wave at a given point in space.
V. G. Zhekul +4 more
doaj +1 more source
Intensive Care Medicine, 2004 Pulse oximetry is universally used for monitoring patients in the critical care setting. This article updates the review on pulse oximetry that was published in 1999 in Critical Care. A summary of the recently developed multiwavelength pulse oximeters and their ability in detecting dyshemoglobins is provided.
openaire +3 more sources
Electric discharge method of synthesis of carbon and metal–carbon nanomaterials
High Temperature Materials and Processes, 2020 The current state and prospective of electric discharge methods of synthesis of carbon and metal–carbon nanomaterials (CNMs) in different areas of science, technology and industry are considered in the present paper.
Kuskova Natalya Ivanivna +2 more
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Isolated sub-100-attosecond pulse generation via controlling electron dynamics [PDF]
, 2007 A new method to coherently control the electron dynamics is proposed using a few-cycle laser pulse in combination with a controlling field. It is shown that this method not only broadens the attosecond pulse bandwidth, but also reduces the chirp, then an
Cao, Wei +4 more
core +1 more source
Pulsing and non-pulsing ULXs: the iceberg emerges [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We show that ultraluminous X-ray sources (ULXs) with coherent X-ray pulsing (PULXs) probably have neutron-star spin axes significantly misaligned from their central accretion discs. Scattering in the funnels collimating their emission and producing their apparent super-Eddington luminosities is the most likely origin of the ...
Jean-Pierre Lasota, Andrew King
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A theory of pulse dynamics and disturbance in ecology
Ecology, 2019 We propose four postulates as the minimum set of logical propositions necessary for a theory of pulse dynamics and disturbance in ecosystems: (1) resource dynamics characterizes the magnitude, rate, and duration of resource change caused by pulse events,
A. Jentsch, P. White
semanticscholar +1 more source
Spectral meta-moments reveal hidden signatures of vortex pulses [PDF]
EPJ Web of Conferences, 2019 Ultrashort vortex pulses possess specific spatio-spectral signatures due to Gouy phase shift. Helical movement of anomalies around the phase singularity was found which is referred to as spectral Gouy rotation. The analysis of spectral moments allows for
Liebmann Max +6 more
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Ultrafast optical pulse shaping using dielectric metasurfaces
Science, 2019 Metasurfaces get ultrafast pulses into shape Nanostructured metasurfaces have been designed to function as many passive optical elements. Now, Divitt et al.
S. Divitt +4 more
semanticscholar +1 more source
On the Nature of Precursors in the Radio Pulsar Profiles
, 2007 In the average profiles of several radio pulsars, the main pulse is accompanied by the preceding component. This so called precursor is known for its distinctive polarization, spectral, and fluctuation properties.
Blandford R. D. +6 more
core +1 more source