Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume...

Effective porosity is most commonly considered to represent the porosity of a rock or sediment available to contribute to fluid flow through the rock or...

Porosity sealing is done through the process of vacuum impregnation. Vacuum impregnation is a preferred OEM process that seals porosity and leak paths...

must be eliminated. They are broken down into five main categories: gas porosity, shrinkage defects, mould material defects, pouring metal defects, and...

Gas porosity is the fraction of a rock or sediment filled with a gas. Determining the true porosity of a gas filled formation has always been a problem...

of varying sizes as well as organic compounds. In order to understand porosity better a series of equations have been used to express the quantitative...

field of formation evaluation, porosity is one of the key measurements to quantify oil and gas reserves. Neutron porosity measurement employs a neutron...

Porosity Storage Reservoirs are man-made water storage reservoirs located in shallow alluvial (sand and gravel) deposits. The porosity, or void space,...

Hydrogen gas porosity is an aluminium casting defect in the form of a porosity or void in an aluminium casting caused by a high level of hydrogen gas...

There are low, medium and high hair porosity. Low hair porosity is when the hair cuticles are tightly shut. Low porosity hair has difficulty obtaining moisture...

Pore structure is a common term employed to characterize the porosity, pore size, pore size distribution, and pore morphology (such as pore shape, surface...

mitigating Kirkendall porosity. Controlling annealing temperature is another method of reducing or eliminating porosity. Kirkendall porosity typically occurs...

type logs where resistivity logs and porosity logs were recorded in one pass in the borehole. The two types of porosity logs (acoustic logs and nuclear logs)...

Stroke 2016. Liebeskind DS, Agbayani E, Woolf GW, et al. Imaging of clot porosity prior to endovascular thrombectomy. Cerebral Large Artery Disease Posters...

is a matter of answering two questions: What are the lower limits for porosity, permeability and upper limits for water saturation that permit profitable...

services such as crop production, are texture, structure, bulk density, porosity, consistency, temperature, colour and resistivity. Soil texture is determined...

off-white to yellow to red color. The density of limestone depends on its porosity, which varies from 0.1% for the densest limestone to 40% for chalk. The...

aquifer, releasing relatively large amounts of water (up to the drainable porosity of the aquifer material, or the minimum volumetric water content). In isotropic...

10% vol. fraction porosity, models begin to deviate significantly. Different models, such as the rule of mixtures for low porosity, two-material matrices...

tools that are commonly used to calculate porosity, the other two being sonic logging and neutron porosity logging The tool was initially developed in...

which can range from 0 (completely dry) to the value of the materials' porosity at saturation. It can be given on a volumetric or mass (gravimetric) basis...

Spain's cultural ties with Latin America, its geographical position, the porosity of its borders, the large size of its underground economy and the strength...

but in practice most aerogels exhibit somewhere between 90 and 99.8% porosity. Aerogels have a porous solid network that contains air pockets, with the...

porosity and permeability of the rock. The porosity and permeability are directly influenced by the way the sand grains are packed together. Porosity...

effective porosity and increasing with an increasing effective confining stress. This means that a sonic log can be used to calculate the porosity, confining...

for porosity because some water will remain in the medium even after drainage due to intermolecular forces. Often the porosity or effective porosity is...

empty space from which atoms were leached/diffused away. The way that porosity develops during the dealloying process has been studied computationally...

onggi includes gochujang, doenjang, kimchi, and soy sauce. With proper porosity and permeability, onggi can give an optimally ripe quality to fermented...

on the fraction f of the volume occupied by voids. This number f is the porosity of the medium; the wetted length is then x = i f = S f t . {\displaystyle...

reservoirs are considered as a dual-porosity reservoirs. Dual porosity reservoirs are reservoirs in which porosity related to cleats (natural fractures)...