pressure level


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Related to pressure level: sound pressure level
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Noun1.pressure level - the force applied to a unit area of surfacepressure level - the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure"
physical phenomenon - a natural phenomenon involving the physical properties of matter and energy
blood pressure - the pressure of the circulating blood against the walls of the blood vessels; results from the systole of the left ventricle of the heart; sometimes measured for a quick evaluation of a person's health; "adult blood pressure is considered normal at 120/80 where the first number is the systolic pressure and the second is the diastolic pressure"
gas pressure - the pressure exerted by a gas
head - the pressure exerted by a fluid; "a head of steam"
hydrostatic head - the pressure at a given point in a liquid measured in terms of the vertical height of a column of the liquid needed to produce the same pressure
intraocular pressure, IOP - pressure exerted by the fluids inside the eyeball; regulated by resistance to the outward flow of aqueous humor; "glaucoma can result from increased intraocular pressure"
oil pressure - pressure that keeps oil on the moving parts of an internal-combustion engine
osmotic pressure - (physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solvent by a semipermeable membrane
corpuscular-radiation pressure, radiation pressure - the minute pressure exerted on a surface normal to the direction of propagation of a wave
instantaneous sound pressure, sound pressure - the difference between the instantaneous pressure at a point in a sound field and the average pressure at that point
suction - a force over an area produced by a pressure difference
vapor pressure, vapour pressure - the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form)
References in periodicals archive ?
THESE TWO STUDIES suggest that a higher blood pressure level in young adulthood is associated with a greater hazard of premature cardiovascular disease, according to Ramachandran S.
the subject of these planned contractual arrangements should be: - cpap systems for the treatment of sleep-disordered breathing (one level of pressure) - 14.24.20, - auto-cpap systems for the treatment of sleep-disordered breathing (automatically adjusted pressure level) - 14.24.21, - bilevel systems for the treatment of sleep-disordered breathing (2 pressure levels) - 14.24.22, - auto-bilevel systems for the treatment of sleep-disordered breathing (automatically adjusting pressure level) - 14.24.23, - bilevel systems for the treatment of sleep-disordered breathing with st function (two pressure levels) - 14.24.24, - specialized devices for the treatment of sleep-disordered breathing - 14.24.25.
"Regardless of blood pressure level in young adulthood, blacks have a substantially higher risk for hypertension compared with whites through 55 years of age," the authors write.
He pointed out that decrease in blood pressure level could cause heart failure and brain stroke.
In childhood, high blood pressure is based on percentiles, rather than blood pressure level. Researchers looked at whether organ damage in teens develops below the 95th percentile, which is the clinical definition of high blood pressure in youth, Medical Xpress reported.
Case history complaints of duct rumble were generated when the low-frequency rumble was less than or equal to 63 Hz and 70 dB sound pressure level in the occupied spaces.
[sup][3],[5],[6],[7] The higher the peak plantar pressure level, the higher the commensurate risk of foot ulceration.
The pilot phase was performed in order to determine changes in the equivalent sound pressure level within the weekdays and during different occasions of the morning, noon, and evening.
Transcritical C[O.sub.2] booster systems (Systems 2, 3 and 4 shown in Table 1) are divided into four pressure levels. At the highest pressure level, the C[O.sub.2] from the high pressure compressors enters a gas cooler/condenser and rejects heat to the surroundings.
However the prognosis of intracranial trauma patients can be significantly improved by cognitive function training during recovery.Besides affecting brain atrophy significantly hypertension also influences regulation of cognitive function and dementia eventually.5-7 High blood pressure level accelerates the aggravation of mild cognitive dysfunction and leads to cardiovascular and cerebrovascular insufficiency and devastating diseases finally by inducing vascular lesions such as intimal hyperplasia vascular spasm and endothelial dysfunction.8 Considering that intracranial trauma is commonly accompanied by cognitive dysfunction without the influencing factors clarified hitherto910 we herein studied the effects of blood pressure levels on the prognosis of such patients.
In cases, when the sound pressure level was with much fluctuation, we moved the direction of microphone between 10-50 cm and the shortest time of measurement at each stations was determined to be 15 seconds.