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Pressure oscillations in a chemical garden
Physical Review E, 2009When soluble metal salts are placed in a silicate solution, chemical gardens grow. These gardens are treelike structures formed of long thin hollow tubes. The growth is driven by the increase in internal pressure from osmosis. One particular case is examined here, calcium chloride in a solution of sodium trisilicate.
J, Pantaleone +5 more
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Heat transfer with oscillating pressure and oscillating flow
Proceedings of the 24th Intersociety Energy Conversion Engineering Conference, 2003Heat exchangers in Stirling engines and many other reciprocating machines operating under conditions of both oscillating pressure and oscillating flow are discussed. Experiments were done on an apparatus consisting of a piston-cylinder space connected to an annular dead-end heat exchanger space.
A.A. Kornhauser, J.L. Smith
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Cuff Pressure Oscillations in the Measurement of Relative Blood Pressure
Psychophysiology, 1977ABSTRACTThe continuous relative blood pressure measure obtained with a partially‐inflated arm blood‐pressure cuff operates under the same principle as the oscillometric method of blood pressure determination. In psychophysiological studies the rise in blood pressure seen, for example, in response to an emotion‐evoking question, produces a rise in cuff ...
L A, Geddes, D C, Newberg
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Pressure oscillations in a subsonic cavity at yaw
AIAA Journal, 1998An experimental investigation was undertaken to examine the effect of yaw angle on flow oscillations that occur in an open cavity placed within a subsonic boundary layer. A rectangular cavity with a length-to-depth ratio of unity and a planform aspect ratio of 8.7 was placed within a thick turbulent boundary layer with a corresponding Reynolds number ...
P. J. Disimile, N. Toy, E. Savory
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Blood pressure oscillations in baroreflex failure
Clinical Autonomic Research, 2016A 67-year-old man presented with labile hypertension and orthostatic hypotension after radical neck dissection and radiotherapy for squamus cell carcinoma. Baroreflex failure is clearly evident on autonomic testing.
Ahmad Rida, Abuzinadah +3 more
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Beat‐to‐beat oscillations in pulse pressure
Clinical Physiology and Functional Imaging, 2004SummaryWe compared 5‐min standard deviations (SD) and frequency domain measures of beat‐to‐beat pulse pressure (PP) variability with those of RR‐interval, systolic (SBP) and diastolic (DBP) blood pressure variabilities, and with cross‐spectral baroreflex sensitivity (BRS) in a population‐based sample of 150 healthy individuals, aged 35–64 years.
Raine, Virtanen +3 more
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The oscillations of blood pressure in the chicken
Comparative Biochemistry and Physiology Part A: Physiology, 1974Abstract 1. 1. The classical oscillations described for the blood pressure in the chicken did not differ from those that have been studied on most vertebrates. The recorded arterial pressure is therefore not constant. 2. 2. There is an interdependence between the pressure in the circulatory system and respiratory movements in the chicken by ...
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Subglottal Pressure Oscillations Accompanying Phonation
Journal of Voice, 2013Acoustic and aerodynamic properties of the voice source and vocal tract have been extensively analyzed during the last half century. Corresponding investigations of the subglottal system are rare but can be assumed to be relevant to voice production. In the present exploratory study, subglottal pressure was recorded in a male adult subject by means of ...
Johan, Sundberg +4 more
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Analyses of Pressure Oscillations in an Open Cavity
AIAA Journal, 1980Open cavities an aircraft exposed to high-speed flow, such as weapon bays, can give rise to intense selfinduced pressure oscillations. The amplitude of these oscillations, under certain flight conditions, can cause structural damage. Substantial experimental and analytical efforts have investigated these pressure fluctuations, resulting in some ...
Hankey, W. L., Shang, J. S.
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