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The effect of filter type and porosity on total suspended sediment determinations
Analytical Methods, 2018Glass fiber filters and cellulose ester membranes from 0.4 to 3.0 μm yielded similar results up to 20 000 mg L−1 of TSS.
Daniele Kasper +2 more
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Influence of porosity on the behavior of cement orthopaedic of total hip prosthesis
Biomaterials and Biomechanics in Bioengineering, 2015This paper presents three-dimensional finite element method analyses of the distribution of equivalents stress of Von Mises. Induced around a cavity located in the bone cement polymethylmethacrylate (PMMA). The presences and effect of its position in the cement was demonstrated, thus on the stress level and distribution.
Benouis Ali +2 more
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Total Porosity of Tight Rocks: A Welcome to the Heat Transfer Technique
Energy & Fuels, 2016Total rock porosity is a key parameter in a wide range of disciplines from petroleum to civil and mining engineering. Porosity is particularly important in petroleum engineering applications, e.g., from estimation of hydrocarbon in place to prediction of geomechanical properties. Conventional techniques used to measure the total porosity, i.e., mercury
Roshan, H. +9 more
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Thermogravimetric evaluation of the specific surface area and total porosity of microporous carbons
Carbon, 1996Abstract A comparative study was carried out for over 20 microporous carbons using high-resolution thermogravimetry (HRTGA) and adsorption techniques. The utility of the HRTGA technique for characterization of active carbons was demonstrated by correlating the HRTGA data with adsorption measurements. The linear correlation was established between the
D. Pan, M. Jaroniec, J. Klinik
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X-ray Microanalysis of Hydrated Cement: Is the Analysis Total Related to Porosity?
Cement and Concrete Research, 1998Abstract The significance of the analysis total of X-ray microanalysis of many microporous materials, such as hydrated cement, appears not to be well understood. Taylor [1] has proposed that the analysis total of hydrated cement can be affected by local porosity. The results of the present paper support this idea.
K.O Kjellsen, E Helsing Atlassi
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Measurement of Total NMR Porosity Adds New Value to NMR Logging
5th International Congress of the Brazilian Geophysical Society, 1997The CMR* Combinable Magnetic Resonance logging tool has been upgraded to provide a robust measurement of clay bound water and microporosity. The upgraded measurement is now possible because of a 50% increase in the signal-to-noise (SIN) ratio, a decrease in the minimum echo spacing from 0.32 ms to 0.2 ms and improved signal processing software that has
R. Freedman +5 more
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The APPEA Journal, 1996
Use of petrophysical evaluation models that rely on predicting mineral composition of reservoir rocks is becoming more prevalent in the oil industry. Evaluation tools such as Schlumberger's Elan or Mincom's Geolog/Multimin allow prediction of variability in reservoir composition and petrophysical parameters.
R. K. Penney, S.Y. Looi
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Use of petrophysical evaluation models that rely on predicting mineral composition of reservoir rocks is becoming more prevalent in the oil industry. Evaluation tools such as Schlumberger's Elan or Mincom's Geolog/Multimin allow prediction of variability in reservoir composition and petrophysical parameters.
R. K. Penney, S.Y. Looi
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Measurements of Clay-Bound Water and Total Porosity by Magnetic Resonance Logging
SPE Annual Technical Conference and Exhibition, 1996Abstract Pulsed nuclear magnetic resonance (NMR) logging has until now been limited to measurements of capillary bound water and of free fluids, the sum of which is considered the "effective porosity" of rock. Clay-bound water and fluids trapped in micropores generally exhibit NMR relaxation times too fast to be ...
M.G. Prammer +6 more
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Catalysis Today, 2010
Abstracts Pt nanoparticles (Pt-NPs) dispersed in either SiO 2 or SiO 2 –TiO 2 hierarchical matrix were investigated for the total oxidation of propene as a typical volatile organic compound. The proposed scalable synthesis method, based on a “one pot” sol–gel pathway enables the encapsulation of isolated Pt-NPs mainly in the organised mesopores and
C. Yacou +4 more
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Abstracts Pt nanoparticles (Pt-NPs) dispersed in either SiO 2 or SiO 2 –TiO 2 hierarchical matrix were investigated for the total oxidation of propene as a typical volatile organic compound. The proposed scalable synthesis method, based on a “one pot” sol–gel pathway enables the encapsulation of isolated Pt-NPs mainly in the organised mesopores and
C. Yacou +4 more
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Total porosity, theoretical analysis, and prediction of the air permeability of woven fabrics
Journal of the Textile Institute, 2012Air permeability is one of the most important properties of textile materials that ensure their comfort. For many materials for technical applications (filters, sails, vacuum cleaners, parachutes, etc.), this is one of the main properties that determine their quality.
Ogulata R.T., Mezarcioz S.
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