scholarly journals Behavior of Proteins under Pressure from Experimental Pressure-Dependent Structures

2021 ◽  
Author(s):  
Beatriz Fernández del Río ◽  
Antonio Rey
Keyword(s):  
Experimental Pressure

Effects of Malnutrition on Development of Experimental Pressure Sores

1992 ◽  
Vol 19 (10) ◽  
pp. 602-609 ◽  
Author(s):  
Toshiaki Takeda ◽  
Tamotsu Koyama ◽  
Yoshihiro Izawa ◽  
Tokutaro Makita ◽  
Nobuo Nakamura
Keyword(s):  
Pressure Sores ◽  
Experimental Pressure

Paper 10: Pressure Losses in the Inlet and Outlet Casings of Axial Flow Turbines for Turbo-Chargers

1967 ◽  
Vol 182 (4) ◽  
pp. 71-79 ◽  
Author(s):  
C. W. Simpson ◽  
D. E. Y. Scarlett
Keyword(s):  
Axial Flow ◽  
Annular Nozzle ◽  
Design Studies ◽  
Pressure Losses ◽  
Pressure Loss Coefficient ◽  
Turbine Efficiency ◽  
Annular Section ◽  
Turbine Casing ◽  
Transition Piece ◽  
Experimental Pressure

During initial design studies for a new range of turbo-chargers it was apparent that a considerable gain of efficiency could be achieved by a reduction of turbine casing losses. In this paper the theoretical and experimental pressure losses obtained from rig tests on the inlet and outlet casings for old and new designs will be presented. The inlet casing tests were completed on an axial entry casing with transition from circular to semi-annular section. The effect of this transition piece on gas incidences is also shown for the semi-annular nozzle entry. Studies on the outlet casing as a transition from annular through radial to axial flow have been completed and will be presented as a pressure loss coefficient for various designs. The tests have been undertaken with both convex and flat plate radial diffusers, with or without swirl. Different outlet ducts were used to determine the effects on pressure losses in the casings, and the results are discussed. Finally, the gains in overall turbine efficiency obtained by adopting the beneficial results from these tests are considered.

scholarly journals On the Pressure Behavior of Tubular Weft Knitted Fabrics Constructed from Textured Polyester Yarns

2011 ◽  
Vol 6 (2) ◽  
pp. 155892501100600 ◽  
Author(s):  
Homa Maleki ◽  
Marzie Aghajani ◽  
A.H. Sadeghi ◽  
Ali Asghar Asgharian Jeddi
Keyword(s):  
Pressure Reduction ◽  
Knitted Fabrics ◽  
Factors Affecting ◽  
Pressure Behavior ◽  
Interfacial Pressure ◽  
Stitch Length ◽  
Laplace’S Law ◽  
Experimental Pressure ◽  
Theoretical Results ◽  
Laplace's Law

This study attempts to investigate the pressure behavior of tubular knitted fabrics after a long period of time. For this purpose, two kinds of knitted fabric (plain and interlock) with various stitch lengths were chosen and the interfacial pressure and pressure reduction of fabrics after 48 hours were analyzed at different strain percents. The same tests were performed on the same specimens after repeated washing and repeated usage. Finally, the experimental pressure values were compared with the theoretical results obtained from Laplace's law. The results reveal that the stitch length and strain percent are important factors affecting the interfacial pressure and pressure reduction of both plain and interlock fabrics. As the results of statistical analysis, the repeated washing and repeated usage have significant effect on interfacial pressure and pressure reduction of both fabrics. The comparison between experimental pressure values and theoretical values calculated from Laplace's law shows a considerable difference in both plain and interlock fabrics.

scholarly journals Experimental pressure-temperature phase diagram of boron: resolving the long-standing enigma

2011 ◽  
Vol 1 (1) ◽  
Author(s):  
Gleb Parakhonskiy ◽  
Natalia Dubrovinskaia ◽  
Elena Bykova ◽  
Richard Wirth ◽  
Leonid Dubrovinsky
Keyword(s):  
Phase Diagram ◽  
Temperature Phase ◽  
Experimental Pressure ◽  
Temperature Phase Diagram

Characteristics of Air-Oil Two-Phase Flow Across a Sudden Expansion

2003 ◽  
Author(s):  
W. H. Ahmed ◽  
C. Y. Ching ◽  
M. Shoukri
Keyword(s):  
Void Fraction ◽  
Two Phase Flow ◽  
Pressure Recovery ◽  
Sudden Expansion ◽  
Phase Flow ◽  
Sudden Increase ◽  
Two Phase ◽  
Recovery Coefficient ◽  
Dynamic Head ◽  
Experimental Pressure

The pressure recovery and void fraction change of air-oil two-phase flow across a sudden expansion has been investigated experimentally over a range of flow conditions. The pressure upstream and downstream of a half-inch to one-inch sudden expansion was measured using a series of pressure taps, and capacitance sensors were used to measure the void fraction along the test section. The void fraction increases as the flow approaches the sudden expansion section, with a sudden increase immediately downstream of the expansion followed by a gradual relaxation to the fully developed value further downstream. The normalized pressure recovery coefficient using the dynamic head based on the homogeneous density and two-phase velocity is found to collapse when plotted as a function of the mass quality. The experimental pressure recovery data are compared with predictions from existing models, and are found to be in good agreement with the Delhaye model with the void fraction relation of Wallis.

A Comparison of Theoretical and Experimental Pressure Distributions on Bodies of Revolution

1980 ◽  
Vol 24 (01) ◽  
pp. 60-65
Author(s):  
A. J. Smits ◽  
S. P. Law ◽  
P. N. Joubert
Keyword(s):  
Calculation Method ◽  
The Body ◽  
Viscous Effects ◽  
Bodies Of Revolution ◽  
Pressure Distributions ◽  
Wide Range ◽  
The Right ◽  
Right Order ◽  
Axisymmetric Bodies ◽  
Experimental Pressure

A wide range of experimental pressure distributions along axisymmetric bodies was compared with the results of Landweber's potential flow calculation method. Apart from certain viscous effects, some discrepancies were found, and it is shown that blockage corrections are of the right order to account for these discrepancies. The calculation method was also used to show that the pressure distribution over the nose of the body is largely independent of the tail shape, and vice versa.

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