On the determination of the skin factor and the turbulence term coefficient through a single constant gas pressure test

2000 ◽  
Vol 26 (1-4) ◽  
pp. 121-131 ◽  
Author(s):  
Edgar Rangel-German ◽  
Fernando Samaniego V
Keyword(s):  
Gas Pressure ◽  
Skin Factor ◽  
Pressure Test ◽  
Single Constant

Bestimmung der Haftzugfestigkeit dichter Beschichtungen / Determination of bond strength of impermeable polymer coatings

1999 ◽  
Vol 5 (4) ◽  
pp. 387-398
Author(s):  
R.M. Frey ◽  
F.H. Wittmann
Keyword(s):  
Bond Strength ◽  
Polymer Coatings ◽  
Theoretical Background ◽  
Gas Pressure ◽  
Blister Formation ◽  
Controlled Conditions ◽  
Porous Substrates

Abstract In many cases there is a risk for the formation of blisters if impermeable polymer coatings are applied on porous substrates. On covers of courses in sport stadiums formation of blisters has been observed recently. In this contribution a method is described which can be used to investigate the causes of blister formation in a given system. Blisters are artificially created by the application of a gas pressure in the interface between coating and substrate. In this way the growth of blisters can be varied under controlled conditions. The theoretical background of this method is outlined. In this way it is possible to estimate the necessary pressure under the cover to create blisters of the observed size.

A method of rapid determination of gas pressure in a coal seam based on the advantages of gas spherical flow field

2017 ◽  
Vol 45 ◽  
pp. 502-510 ◽  
Author(s):  
Chaojie Wang ◽  
Shengqiang Yang ◽  
Chenglin Jiang ◽  
Dingding Yang ◽  
Chaojie Zhang ◽  
...  
Keyword(s):  
Flow Field ◽  
Coal Seam ◽  
Rapid Determination ◽  
Gas Pressure

Instrumental Determination of Molecular Weight by Gas Pressure.

1974 ◽  
Vol 46 (9) ◽  
pp. 1349-1351
Author(s):  
F. W. Karasek ◽  
R. J. Laub
Keyword(s):  
Molecular Weight ◽  
Gas Pressure
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