An Attempt at a More Precise Evaluation of the Approach to Mesopore Size Distribution Calculations Depending on the Degree of Pore Blocking

1993 ◽  
Vol 160 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Peter T. Tanev ◽  
Lyubomir T. Vlaev
Keyword(s):  
Size Distribution ◽  
Pore Blocking ◽  
Mesopore Size Distribution ◽  
Precise Evaluation

Preparation of Mesoporous Si–C–O Fibers with a Narrow Mesopore Size Distribution

2013 ◽  
Vol 13 (3) ◽  
pp. 2272-2275
Author(s):  
Chengyong Li ◽  
Rongan He ◽  
Shiying Zhang ◽  
Jingyu Liu ◽  
Ning Yang
Keyword(s):  
Size Distribution ◽  
Mesopore Size Distribution

Possibilities of determining the polymodal pore-size distribution from physical adsorption of nitrogen

1987 ◽  
Vol 52 (5) ◽  
pp. 1160-1166
Author(s):  
Dagmar Tomanová ◽  
Petr Schneider
Keyword(s):  
Pore Size ◽  
Size Distribution ◽  
Physical Adsorption ◽  
Relative Pressure ◽  
Size Distributions ◽  
Porous Sample ◽  
Fine Grained ◽  
Mesopore Size Distribution ◽  
Pore Size Distributions ◽  
Adsorption Of Nitrogen

It is shown, on the basis of experimentally determined adsorption isotherms of physical adsorption of nitrogen on two- and three-component mixtures of fine grained porous glasses with narrow pore-size distributions, that the polymodal mesopore-size distribution curves can be evaluated in case that the porous sample contains groups of mesopores differing rather significantly in size. The differentiation of groups of pores gets worse with wider pores where the demands on the accuracy of the relative pressure measurement grow stronger.

Effects of alkaline media on the controlled large mesopore size distribution of bimodal porous silicas via sol-gel methods

2014 ◽  
Vol 259 ◽  
pp. 46-51 ◽  
Author(s):  
Huan Zhou ◽  
Jihong Sun ◽  
Bo Ren ◽  
Feng Wang ◽  
Xia Wu ◽  
...  
Keyword(s):  
Size Distribution ◽  
Sol Gel ◽  
Alkaline Media ◽  
Mesopore Size Distribution

The extinction time of a general birth and death process with catastrophes

1986 ◽  
Vol 23 (04) ◽  
pp. 851-858 ◽  
Author(s):  
P. J. Brockwell
Keyword(s):  
Laplace Transform ◽  
Size Distribution ◽  
Sufficient Conditions ◽  
Necessary And Sufficient Conditions ◽  
Death Process ◽  
Extinction Time ◽  
Birth And Death Process ◽  
Different Types ◽  
The Laplace Transform ◽  
Necessary And Sufficient

The Laplace transform of the extinction time is determined for a general birth and death process with arbitrary catastrophe rate and catastrophe size distribution. It is assumed only that the birth rates satisfyλ0= 0,λj> 0 for eachj> 0, and. Necessary and sufficient conditions for certain extinction of the population are derived. The results are applied to the linear birth and death process (λj=jλ, µj=jμ) with catastrophes of several different types.

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