Bottom Pressure Method for the Determination of the Flooding/Loading Transition in an Aerated Vessel Stirred by a Rushton Impeller

2017 ◽  
Vol 56 (41) ◽  
pp. 11977-11982 ◽  
Author(s):  
Baoqing Liu ◽  
Fangyi Fan ◽  
Ruijia Cheng ◽  
Zilong Xu ◽  
Yijun Zheng ◽  
...  
Keyword(s):  
Bottom Pressure ◽  
Pressure Method ◽  
Rushton Impeller

On the determination of dynamic surface tensions by means of a modified bubble pressure method

1982 ◽  
Vol 260 (12) ◽  
pp. 1145-1147 ◽  
Author(s):  
K. Lunkenheimer ◽  
R. Miller ◽  
J. Becht
Keyword(s):  
Surface Tensions ◽  
Dynamic Surface ◽  
Pressure Method ◽  
Bubble Pressure

scholarly journals Contribution of the Excluded Volume of Bovine Serum Albumin for Solute Molecules to the Apparent Nonsolvent Water

1970 ◽  
Vol 56 (2) ◽  
pp. 180-190 ◽  
Author(s):  
G. W. F. H. Borst-Pauwels ◽  
D. A. Goldstein
Keyword(s):  
Bovine Serum Albumin ◽  
Vapor Pressure ◽  
Solute Concentration ◽  
Critical Examination ◽  
Excluded Volume ◽  
Apparent Increase ◽  
Bovine Albumin ◽  
Pressure Method ◽  
Order Of Magnitude

Addition of a macromolecule to a solution will give rise to a large excluded volume for the centers of the solute molecules. This will cause an apparent increase in solute concentration which is of the same order of magnitude as that associated with the nonsolvent volumes reported in the literature. A critical examination of one of the procedures used for the determination of nonsolvent water—the vapor pressure method of Hill—is given, and it is concluded that, with the use of this method, it is impossible to detect any significant nonsolvent water surrounding bovine albumin for either sugars or polyols. Generally, data reported in the literature for the nonsolvent water of proteins or other macromolecules will be too high unless they are corrected for the excluded volume.

scholarly journals New exact relations for easy recovery of steady wave profiles from bottom pressure measurements

2013 ◽  
Vol 726 ◽  
pp. 547-558 ◽  
Author(s):  
Didier Clamond
Keyword(s):  
Free Surface ◽  
Wave Profile ◽  
Pressure Measurements ◽  
Bottom Pressure ◽  
Reconstruction Procedure ◽  
Free Surface Wave ◽  
Wave Profiles ◽  
Fixed Point Iterations ◽  
Exact Relations

AbstractThis paper is about the determination of a free surface wave profile from a given pressure distribution at the bottom. For a two-dimensional irrotational steady surface water wave propagating over a flat horizontal bed, this problem is solved analytically in an implicit form. Explicit solutions can be easily obtained numerically via fixed point iterations, whose convergence is outlined mathematically and numerically. This new surface reconstruction procedure does not involve the resolution of a differential or an integral equation, i.e. the surface is given by algebraic local relations. Thus, this formulation permits the free surface recovery in a simpler and more efficient way than previous methods.

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