A study is made of the plane convergent forced flow of an incompressible liquid with anomalous viscosity, whose rheological properties obey a power law. A reduction in flow cross section leads to the development of a counterpressure whose existence produces near the inlet a counterflow in the regi...
In the present study, a plane jet issuing from a rectangular nozzle and impinging on a slotted plate was investigated experimentally by means of 3D-stereoscopic PIV. The velocity field was experimented for thirty parallel planes. The whole field was obtained by an interpolation between the ...
For single-plane calculations, no linearity was found. For the disc method, the regression equation was given by y=0.91x + 8.4, the correlation coefficient (r) was 0.989, and the standard error of estimate (s.e.e.) was ± 12.8 ml. The confidence interval was 0.85 to 0.98. With the ...
The technology of thin sections or of tomographic imaging can produce a visualization ofpore spaceand solid material in a cross-sectional plane, as inFigure 1. The summed area of pore space divided by total area gives the areal porosity over that plane. An analogous procedure can be followed ...
Klee V (1979) Some unsolved problems in plane geometry. Math Mag 52(3):131–145 Google Scholar Lieb EH (1982) Monotonicity of the molecular electronic energy in the nuclear coordinates. J Phys B 11(18):L63–L66 Google Scholar Lieb EH, Simon B (1978) Monotonicity of the electronic co...
A new method to represent and evaluate crackles on the flow-volume plane is described. Characteristic crackle patterns were found in patients with pneumonia, bronchiectasis, chronic obstructive pulmonary disease, heart failure and cryptogenic fibrosing alveolitis. In addition to visual assessment, simple ...
a. by formula, v = 1/3 * 2*1/2 * 4 = 4/3 b. v = volume of cylinder with height of 4 and radius of 2, v = pai * 2*2 * 4 = 16 pai
Just consider the first quadrant in a plane. A circle of raduius 15 is expressed as y = √(15² - x²); the hole can be considered as line y = 3; 3 = √(15² - x²),x² = 216they inercept at (√216,3)The volume is double the result from rotating the region ...
In 2023, China's civil aviation industry registered a cargo and mail traffic of 28.36 billion ton-kilometers, representing a rise of 11.6 percent compared to the previous year.
It is not necessary to fit geometric primitives to the sampled data; images are formed by directly shading each sample and projecting it onto the picture plane. Surface-shading calculations are performed at every voxel with local gradient vectors serving as surface normals. In a separate step, ...