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, 2021 <div> We examine herein a simple model for the evolution in time of the pressure which a suddenly vaporized, ablating layer exerts upon the subjacent body. The model invokes a plausible construct of surface material instantaneously thrust into a gaseous regime governed by a Maxwell-Boltzmann phase space distribution.
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Pulse pressure and perioperative stroke [PDF]
Current Opinion in Anaesthesiology, 2019 Central pulse pressure (PP), a marker of vascular stiffness, is a novel indicator of risk for perioperative morbidity including ischemic stroke. Appreciation for the mechanism by which vascular stiffness leads to organ dysfunction along with understanding its clinical detection may lead to improved patient management.Vascular stiffness is associated ...
Adam Blaine Kretzer +3 more
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Blood Pressure Estimation by Photoplethysmogram Decomposition into Hyperbolic Secant Waves
Applied Sciences, 2022 Photoplethysmographic (PPG) pulses contain information about cardiovascular parameters. In particular, blood pressure can be estimated using PPG pulse decomposition analysis, which assumes that a PPG pulse is composed of the original heart ejection blood
Takumi Nagasawa +7 more
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Shock-induced collapse of a gas bubble in shockwave lithotripsy [PDF]
, 2008 The shock-induced collapse of a pre-existing nucleus near a solid surface in the focal region of a lithotripter is investigated. The entire flow field of the collapse of a single gas bubble subjected to a lithotripter pulse is simulated using a high ...
Colonius, Tim, Johnsen, Eric
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PLoS ONE, 2015 Abdominal aortic aneurysm (AAA) is a disease of the aortic wall, which can progress to catastrophic rupture. Assessment of mechanical characteristics of AAA, such as aortic distensibility, may provide important insights to help identify at-risk patients ...
Christopher M Haggerty +5 more
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The impulsive motion of a liquid resulting from a particle collision [PDF]
, 1998 When two particles collide in a liquid, the impulsive acceleration due to the rebound produces a pressure pulse that is transmitted through the fluid. Detailed measurements were made of the pressure pulse and the motion of the particles by generating ...
Hunt, M. L., Zenit, R.
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Composite pressure cell for pulsed magnets
Review of Scientific Instruments, 2021 Extreme pressures and high magnetic fields can affect materials in profound and fascinating ways. However, large pressures and fields are often mutually incompatible; the rapidly changing fields provided by pulsed magnets induce eddy currents in the metallic components used in conventional pressure cells, causing serious heating, forces, and vibration.
Doan N. Nguyen +6 more
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Sensors, 2020 The measurement and analysis of the arterial pulse wave provides information about the state of vascular health. When measuring blood pressure according to Riva-Rocci, the systolic and diastolic blood pressure is measured non-invasively with an ...
Horst Hellbrück +3 more
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Method and apparatus for continuously monitoring blood oxygenation, blood pressure, pulse rate and the pressure pulse curve utilizing an ear oximeter as transducer Patent [PDF]
, 1968 Ear oximeter for monitoring blood oxygenation and pressure, pulse rate, and pressure pulse curve, using dc and ac ...
Smith, J. R., Jr.
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Differences in ultrasound-derived arterial wall stiffness parameters and noninvasive blood pressure between Friesian horses and Warmblood horses [PDF]
, 2020 Background: Aortic rupture is more common in Friesians compared to Warmbloods, which might be related to differences in arterial wall composition and, as such, arterial wall stiffness (AWS).
Chiers, Koen +5 more
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