A Practical Approach to Determination of Imbibition Gas-Water Relative Permeability

1976 ◽  
Vol 28 (02) ◽  
pp. 199-204 ◽  
Author(s):  
D.K. Keelan
Keyword(s):  
Relative Permeability ◽  
Practical Approach

scholarly journals A Statistical Approach to Model the H-Index Based on the Total Number of Citations and the Duration from the Publishing of the First Article

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Mohammad Reza Mahmoudi ◽  
Marzieh Rahmati ◽  
Zulkefli Mansor ◽  
Amirhosein Mosavi ◽  
Shahab S. Band
Keyword(s):  
Nonlinear Regression ◽  
Research Funding ◽  
Statistical Approach ◽  
Practical Approach ◽  
H Index ◽  
Model Based ◽  
Funding Agencies ◽  
Number Of Citations ◽  
The Impact

The productivity of researchers and the impact of the work they do are a preoccupation of universities, research funding agencies, and sometimes even researchers themselves. The h-index (h) is the most popular of different metrics to measure these activities. This research deals with presenting a practical approach to model the h-index based on the total number of citations (NC) and the duration from the publishing of the first article (D1). To determine the effect of every factor (NC and D1) on h, we applied a set of simple nonlinear regression. The results indicated that both NC and D1 had a significant effect on h ( p  < 0.001). The determination of coefficient for these equations to estimate the h-index was 93.4% and 39.8%, respectively, which verified that the model based on NC had a better fit. Then, to record the simultaneous effects of NC and D1 on h, multiple nonlinear regression was applied. The results indicated that NC and D1 had a significant effect on h ( p  < 0.001). Also, the determination of coefficient for this equation to estimate h was 93.6%. Finally, to model and estimate the h-index, as a function of NC and D1, multiple nonlinear quartile regression was used. The goodness of the fitted model was also assessed.

scholarly journals A Practical Approach to Determination of Laboratory GC-MS Limits of Detection*

1997 ◽  
Vol 21 (1) ◽  
pp. 12-16 ◽  
Author(s):  
Paula J. Underwood ◽  
Gerald E. Kananen ◽  
Edwin K. Armitage
Keyword(s):  
Practical Approach ◽  
Limits Of Detection

Field determination of mechanical aperture, entry pressure and relative permeability of fractures using NAPL injection

Géotechnique ◽  
2006 ◽  
Vol 56 (1) ◽  
pp. 27-38 ◽  
Author(s):  
A. Steele ◽  
D. A. Reynolds ◽  
B. H. Kueper ◽  
D. N. Lerner
Keyword(s):  
Relative Permeability ◽  
Entry Pressure ◽  
Mechanical Aperture

Modeling Giant Magnetoresistance and Relative Permeability in Granular Films

1993 ◽  
Vol 313 ◽  
Author(s):  
M.R. Parker ◽  
J.A. Barnard ◽  
S. Hossain ◽  
D. Seale ◽  
M. Tan ◽  
...  
Keyword(s):  
Experimental Data ◽  
Relative Permeability ◽  
Giant Magnetoresistance ◽  
Spin Correlation ◽  
Permeability Model ◽  
Granular Films ◽  
Cluster Radius ◽  
Reliable Determination ◽  
Spin Dependent Scattering

ABSTRACTA Model for the field dependence of giant Magnetoresistance (GMR) in ‘granular’ co-sputtered alloy thin films (based on a relatively simple spin-dependent scattering concept appropriate to superparamagnetic and weakly ferromagnetic films) is applied to new experimental data from the Co90Fe10-Ag system. The Model and the experimental data can be shown to compare very well with the help of a single adjustable parameter related to spin correlation of adjacent Co-Fe clusters. A careful fit of field-dependent MR data and theory leads to a fairly reliable determination of spin-cluster radius. An analysis of the relative permeability of granular GMR films derived from the generalized form of the Clausius-Mossoti relationship is also presented. For a non-Magnetic Matrix the effective relative permeability is shown to be materials independent. The permeability model is applied to Co-Au granular films.

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