pressure gradient


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Related to pressure gradient: Adverse pressure gradient

pressure gradient

n
1. (General Physics) the change of pressure per unit distance. See adverse pressure gradient, favourable pressure gradient
2. (Physical Geography) meteorol the decrease in atmospheric pressure per unit of horizontal distance, shown on a synoptic chart by the spacing of the isobars
References in periodicals archive ?
Various technology tools that are utilized to assess circulatory right-to-left shunt abnormalities, such as cardiac ultrasound visualization, transcranial Doppler, and dye dilution curves, are reviewed as well as the importance of the Valsalva procedure in creating a positive right-to-left atrial pressure gradient.
To proceed modeling, the pressure gradient backward along the length of the fully filled sections of the screw must be calculated.
Contract notice: Delivery kit uhplc liquid chromatography to 130 mpa of pressure gradient on the high pressure mass spectrometer triple quadrupole and additional detectors.
Once inflation was complete, the mean pressure gradient was reduced to 5 mm Hg (Figures 1b and 2).
The study of 100 patients with hepatitis C and compensated cirrhosis showed that the probability of developing a first episode of liver decompensation at 1, 5, and 7 years was 4%, 25%, and 28%, respectively, among patients with an hepatic venous pressure gradient (HVPG) value of 10 mm Hg or above, compared with 0, 0, and 16% in patients without cirrhosis with severe portal hypertension (CSPH).
As the vacuum time and dyeing time increased, color change and dye uptake first gradually increased until water began to be discharged, leading to a decrease of the pressure gradient in the log, and then decreased.
First, the value for height (h) does not appreciably change because the flow through the tracheobronchial tree originates from the pressure gradient between the mouth and the alveoli.
The report said a variation in the sedimentation changes different parameters like conversion of energy, pressure gradient between surface and ground water, meandering ( curve in a river's flow) and flow velocity among other factors vital for a stable river ecosystem.
The occurrence of a leak changes the pressure gradient along the pipeline in characteristic manner.
This was accomplished through comparison of the maximum and average pressure and root-mean-square (RMS) of the pressure gradient of both the raw, unprocessed array data and data interpolated with a bilinear versus bicubic spline.
As a result of an extension of surface low pressure from the east , with the presence of high pressure on Saudi Arabia will cause a strong pressure gradient between the high and low pressure, that will accelerate the northwesterly winds from North Arabian Gulf," a statement by the NCMS said on Saturday.
As a result of an extension of surface low pressure from the east, with the presence of high pressure on Saudi Arabia, a strong pressure gradient between the high and low pressure has been created, which will accelerate the northwesterly winds from North Arabian Gulf," a statement from the NCMS said on Saturday.