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See searches and references containing EFFECTIVE POROSITY!EFFECTIVE POROSITY
Part of the porosity in which a given fluid can flow
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
Effective_porosity
Ratio of void volume and total volume of a porous material
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
Porosity
increasing effective porosity and increasing with an increasing effective confining stress. This means that a sonic log can be used to calculate the porosity, confining
Sonic_logging
Step in the metal casting process
Porosity sealing is done through the process of vacuum impregnation. Vacuum impregnation is a preferred OEM process that seals porosity and leak paths
Porosity_sealing
Material containing fluid-filled voids
as in a sponge. However, there is also a concept of closed porosity and effective porosity, i.e. the pore space accessible to flow. Many natural substances
Porous_medium
Quantity of water contained in a material
which can range from 0 (completely dry) to the value of the materials' porosity at saturation. It can be given on a volumetric or gravimetric (mass) basis
Water_content
field of formation evaluation, porosity is one of the key measurements to quantify oil and gas reserves. Neutron porosity measurement employs a neutron
Formation evaluation neutron porosity
Formation_evaluation_neutron_porosity
Study of groundwater's movement and distribution
for porosity because some water will remain in the medium even after drainage due to intermolecular forces. Often the porosity or effective porosity is
Hydrogeology
Study of physical and chemical properties of rocks
oil that can move or be "produced" (i.e. effective porosity). While the magenta line indicates the toral porosity, meaning that it includes the water that
Petrophysics
Amount of water an aquifer releases while staying saturated
has an insignificant contribution. Specific yield can be close to effective porosity, but several subtleties make this value more complicated than it seems
Specific_storage
Mass per unit volume of granular matter
velocity. Brazil nut effect Characterisation of pore space in soil Effective porosity Density meter Number density Buckman, Harry O.; Brady, Nyle C. (1960)
Bulk_density
Natural gas produced from reservoir rocks
permeability and less than ten percent matrix porosity. Although shales have low permeability and low effective porosity, shale gas is usually considered separate
Tight_gas
Source of drinking water in Texas
the burrowing action of worms and crustaceans at the seafloor. The effective porosity, or the amount of water that is capable of being recovered, of the
Edwards_Aquifer
Pore structure is a common term employed to characterize the porosity, pore size, pore size distribution, and pore morphology (such as pore shape, surface
Pore_structure
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
Hydrogen_gas_porosity
Soft, siliceous sedimentary rock
similar to pumice powder, and has a low density as a result of its high porosity. The typical chemical composition of oven-dried diatomaceous earth is 80–90%
Diatomaceous_earth
Thin layer of water surrounding mineral surfaces
quality decreases or pathogen increases. Adsorption Capillary action Effective porosity Surface tension W.A. Jury & R. Horton, 'Soil Physics', Wiley; 6th
Bound_water
Pressure between two fluids from forces between the fluids and tube walls
n} is the number of core samples, ϕ {\displaystyle \phi } is the effective porosity, V b {\displaystyle Vb} is the bulk volume of sample, and P c {\displaystyle
Capillary_pressure
Proportionality constant in some physical laws
is the tortuosity (dimensionless). The transport-available porosity equals the total porosity less the pores which, due to their size, are not accessible
Mass_diffusivity
Mix of crumbled stones
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Gravel
Soil material that is ordinarily a solid behaving like a thick liquid
embankment dams and retaining structures. Soil liquefaction occurs when the effective stress (shear strength) of soil is reduced to essentially zero. This may
Soil_liquefaction
Dimensionless quantity related to porosity
in materials science and in soil science, and is closely related to the porosity (often noted as ϕ {\displaystyle \phi } , η {\displaystyle {\eta }} (sometimes
Void_ratio
Device used to measure density of liquids
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Hydrometer
Narrow shaft bored in the ground
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Borehole
Change of shape of geological salt bodies submitted to stress
those lacking salt. Rock salt has an effective porosity of nearly 50% on the surface, while the effective porosity decreases to less than 10% at a depth
Salt_deformation
Detailed record of borehole contents
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)
Well_logging
Granular material composed of finely divided rock and mineral particles
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Sand
Differential diffusion
be an effective model for mitigating Kirkendall porosity. Controlling annealing temperature is another method of reducing or eliminating porosity. Kirkendall
Kirkendall_effect
Fine grained natural soil
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Clay
Movement of rock or soil down slopes
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Mass_wasting
Measure of the ability of a porous material to allow fluids to pass through it
with low permeability. The permeability of a medium is related to the porosity, but also to the shapes of the pores in the medium and their level of connectedness
Permeability_(porous_media)
Classification of soil or sediment
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Silt
Israeli hydrologist
hydrology Dagan G., A method of determining the permeability and effective porosity of unconfined anisotropic aquifers, Water Resour. Res., 3 (4), 1059–1071
Gedeon_Dagan
Synthetic ultralight solid material
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
Aerogel
identification of specific clay minerals is also useful for calculating the effective porosity of reservoir rock. Gamma ray logs are also used in mineral exploration
Gamma_ray_logging
Excavated channel in ground
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Trench
Aquifer contamination by medical drugs
_{\text{accumulation}}} Where ϕ {\displaystyle \phi } represents the effective porosity of the medium, x {\displaystyle {\boldsymbol {x}}} and t {\displaystyle
Groundwater contamination by pharmaceuticals
Groundwater_contamination_by_pharmaceuticals
Change in viscosity of a gel or fluid caused by stress
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Thixotropy
Excavation or structure to provide access to groundwater
well, and the characteristics of the substrate at the well bottom. (e.g., porosity). The volume flow rate into the well can be written as a function of the
Well
Metal casting process
venting, or too much lubricant. Other possible defects are gas porosity, shrinkage porosity, hot tears, and flow marks. Flow marks are marks left on the
Die_casting
Process of forming and bonding material by heat or pressure
proportional to the inverse square root of the fractional porosity, implying that pores are the most effective retardant for grain growth during sintering. If a
Sintering
Sudden movement of the Earth's crust
66S. doi:10.1038/physci243066a0. Rudnicki, J.W.; Rice, J.R. (2006). "Effective normal stress alteration due to pore pressure changes induced by dynamic
Earthquake
Class of solid chemical substances
COFs are classified as reticular materials. Additionally, their tunable porosity and high surface area make COFs particularly attractive for applications
Covalent_organic_framework
Method for basic wastewater treatment (on-site)
locality. A percolation test is required prior to installation to ensure the porosity of the soil is adequate to serve as a drain field. Septic tank effluent
Septic_tank
Geologic formation in Poland
contamination, effective porosity and total permeability of the complexes. Several works based on static 3D model recovered effective storage capacity
Drzewica_Formation
Main parameter determining concrete strength and durability
"crushed". Moreover, a higher porosity also increases the hydraulic conductivity (K, m/s) of concrete and the effective diffusion coefficients (De, m2/s)
Water–cement_ratio
Microporous, aluminosilicate mineral group
have ion exchange properties. The nature of the cations influences the porosity of zeolites. Zeolites have microporous structures with a typical diameter
Zeolite
services such as crop production, are texture, structure, bulk density, porosity, consistency, temperature, colour and resistivity. Soil texture is determined
Physical_properties_of_soil
Mountain in Slovenia
reserves held in the rock pores are estimated—using a conservative effective porosity of two per cent—at nearly 110 million m3. These figures, together
Olševa
convenient to introduce a porosity, which measures the fraction of the REV that constitutes pore space. To keep track of the porosity in a deforming material
Poromechanics
Civil engineering technique
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Slurry_wall
High-porosity, water-permeable concrete
concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation
Pervious_concrete
Type of paper or paperboard
a paper machine from the wood pulp. The paper is microcrepped to give porosity and elasticity. Microcrepping is done by drying with loose draws allowing
Kraft_paper
(slider), saturated hydraulic conductivity, wetting front suction, effective porosity, and soil depth Abstraction and impervious area parameters with ASCII
Vflo
Ability of a liquid to flow in narrow spaces
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
Capillary_action
Methods used to protect natural stone
colors provide an exceptionally versatile range of building materials. The porosity and makeup of most stone does, however, leave it prone to certain types
Stone_sealer
pre-existing pores, reducing porosity. Clay minerals are phyllo-silicate, in other words, with sheet-like structure. They are effective agents that block fluid
Fault_zone_hydrogeology
Methods to reduce sound pressure
be determined by a number of factors, including cell size, tortuosity, porosity, thickness, and density. The absorption aspect in soundproofing should
Soundproofing
Tile used to keep out rain
tile inferior to clay tile, largely due to its fundamental weaknesses of porosity and color impermanence. Glass tiles, also referred to as skylight tiles
Roof_tiles
Works that re-shape the earth's surface
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Earthworks_(engineering)
Ability of water to flow through a porous material
account, otherwise the result may be erroneous. Because of their high porosity and permeability, sand and gravel aquifers have higher hydraulic conductivity
Hydraulic_conductivity
Composite material consisting of ceramic fibers in a ceramic matrix
required, further treatments like coating or impregnation of the intrinsic porosity. The first and the last step are almost the same for all CMCs: In step
Ceramic_matrix_composite
Intrusion of water causing destruction and attack
is saturated will have a greater potential evaporation rate due to its porosity that a hard wood floor that is saturated with water. Determing the class
Water_damage
Form of the chemical element silicon
porosity and complex refractive indices of Si and the medium inside the pores. Effective refractive index of PS can be modelled by means of effective
Porous_silicon
Field in geology
Analysis of reservoirs at the simplest level requires an assessment of their porosity (to calculate the volume of in situ hydrocarbons) and their permeability
Petroleum_geology
Binary Kuiper belt object
using thermal modeling indicate that the Altjira system has a combined effective diameter of approximately 331+51 −187 km. The primary body has an estimated
148780_Altjira
Inorganic, nonmetallic solid prepared by the action of heat
ceramics were glazed and fired to create smooth, colored surfaces, decreasing porosity through the use of glassy, amorphous ceramic coatings on top of the crystalline
Ceramic
Class of chemical substance
would be stable upon removal of guest molecule and would exhibit permanent porosity. In 1995, Omar M. Yaghi demonstrated interpenetrated 2-D structure with
Metal–organic_framework
Twenty-first letter in the Greek alphabet
diameter. A sentence in first-order logic. The Veblen function in set theory. Porosity in geology and hydrology. Strength (or resistance) reduction factor in
Phi
Computer modelling of a petroleum reservoir
although 1D and 2D models are sometimes used. Values for attributes such as porosity, permeability and water saturation are associated with each cell. The value
Reservoir_modeling
Gases commonly used in several welding processes
oxygen makes the shielding gas oxidize the electrode, which can lead to porosity in the deposit if the electrode does not contain sufficient deoxidizers
Shielding_gas
Metropolis in Maharashtra, India
as porosity and permeability. The groundwater occurs under water table conditions and is mainly controlled by the extent of its secondary porosity, i
Aurangabad
Aerial manned-kite sport
unique tow yoke harness arrangement, its construction, and the use of zero porosity fabrics which allowed it to be used over water safely. The majority of
Parasailing
Fired clay construction material
freeze/thaw cycling, and salt formation from atmospheric pollution. The porosity of terracotta greatly impacts its performance. The ability or inability
Architectural_terracotta
Phenomenon of surface adhesion
14..453W. doi:10.1063/1.1724167. Condon, James (2020). Surface Area and Porosity Determinations by Physisorption, Measurement, Classical Theory and Quantum
Adsorption
Puffed or extruded corn snacks
conditions during extrusion. Characteristics of puffcorn, notably diameter, porosity, and homogeneous structure, are appearance attributes that aid in the perception
Puffcorn
Equation describing the flow of a fluid through a porous medium
125–128, 2006). The flow velocity (u) is related to the flux (q) by the porosity (φ) with the following equation: q = φ u . {\displaystyle \mathbf {q} =\varphi
Darcy's_law
Industrial welding process
percentages to help prevent oxygen porosity. Some contain denitriding metals such as titanium and zirconium to avoid nitrogen porosity. Depending on the process
Gas_metal_arc_welding
Country in Southern and Western Europe
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
Spain
Practice of changing the hair color
color and porosity along the length of a hair strand. The final color of each strand of hair will depend on its original color and porosity. This variation
Hair_coloring
Process that separates solids from fluids
can also be added to the slurry before filtration. This increases the porosity of the cake and reduces the resistance of the cake during filtration. In
Filtration
Accumulation of partially decayed vegetation
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Peat
Kinetic theory of gravity
drag and heating remain. A basic prediction of the theory is the extreme porosity of matter. As supposed by Fatio and Le Sage in 1690/1758 (and before them
Le Sage's theory of gravitation
Le_Sage's_theory_of_gravitation
oxidation resistance. Residual porosity and stoichiometry of the material can vary its thermal conductivity, with increasing porosity leading to lower thermal
SiC–SiC_matrix_composite
Metal treatment process
completely effective and reduces abrasion resistance by 20%. The oxide is converted into its hydrated form and the resulting swelling reduces the porosity of
Anodizing
Norwegian North Sea oil field
overlying Cenozoic rocks causing low seismic velocities. However, the high porosity of the reservoir rock does cause an increase in seismic amplitude which
Ekofisk_oil_field
Porous material made from a metal
(open-cell foam). The defining characteristic of metal foams is a high porosity: typically only 5–25% of the volume is the base metal. The strength of
Metal_foam
Compost production method
producing large volumes of compost. These rows are generally turned to improve porosity and oxygen content, mix in or remove moisture, and redistribute cooler
Windrow_composting
Form of carbon with an extremely high surface area
(920,000 square feet per ounce), as determined by gas absorption, and its porosity can run 10ML/day in terms of treated water per gram. Researchers at Cornell
Activated_carbon
Persistent body of ice that moves downhill under its own weight
depends on the porosity and pore pressure; higher porosity decreases the sediment strength (thus increases the shear stress τB). Porosity may vary through
Glacier
Being submerged in grain, with possibly fatal consequences
the grain, they may be able to keep breathing and be rescued; the 40–60% porosity of stored grain makes it at least theoretically possible. In one instance
Grain_entrapment
Welding process
free from oil, moisture, dirt and other impurities, as these cause weld porosity and consequently a decrease in weld strength and quality. To remove oil
Gas_tungsten_arc_welding
Science and technology of creating objects from inorganic, non-metallic materials
pressing and sintering, glass-ceramics do not contain the volume fraction of porosity typically present in sintered ceramics. The term mainly refers to a mix
Ceramic_engineering
Material to reduce heat transfer in structures
conventional plastic foam insulation materials, due to their designed high porosity. But the difficulties in processing and low productivity limit the development
Building_insulation
Animal flesh produced by culturing cells
bovine cells. Its spongy texture enables efficient cell seeding and its porosity encourages oxygen transfer. Additionally, it degrades during cell differentiation
Cultured_meat
Electron oscillations in a nanoparticle
wavelength underwent a red-shift as a larger amount of HAuCl4 was added and porosity of the particles increased. For semiconductor nanoparticles, the maximum
Localized_surface_plasmon
Methods of storing hydrogen for later use
surface area, porosity and hydrogen storage capacity. However, the active metal centers are low. MOF hybrids have enhanced surface area, porosity, loading
Hydrogen_storage
Metallic material
properties can be adjusted through manufacturing manipulations that vary porosity and cell morphology. The high appeal of titanium foams is directly correlated
Titanium_foam
High strength concrete additive
maintaining a better workability of fresh concrete results in a lower porosity of the hardened concrete, and so to a better resistance to compression
Superplasticizer
Natural hazard involving ground movement
Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity Structures (Interaction)
Landslide
EFFECTIVE POROSITY
EFFECTIVE POROSITY
Boy/Male
Hindu, Indian
Effective
Girl/Female
Sikh
Form of God, Effective
Boy/Male
Tamil
Form of God, Effective
Boy/Male
Indian, Punjabi, Sikh, Tamil, Telugu
Light of King; Effective King; Light of Day
Boy/Male
Hindu, Indian, Marathi
Effective; Powerful
Boy/Male
Indian, Sanskrit
The Spring Season; Effecting Wishes
Boy/Male
Muslim Hindi
Worker. Effective.
Girl/Female
Hindu, Indian, Marathi, Sanskrit
Effective; Efficient; Goddess Durga
Boy/Male
Hindu
Form of God, Effective
Boy/Male
Arabic, Indian, Muslim, Sindhi
Doer; Work Man; Worker; Effective
Surname or Lastname
English
English : topographic name for a man who lived by an enclosure, from Middle English hay (see Hay 1) + man. The term was in many cases effectively a synonym for Hayward.English : nickname for a tall man (see Hay 2).English : occupational name for the servant of someone called Hai (see Hay 3), with man in the sense ‘servant’.English : occupational name for someone who sold hay.Jewish : variant of Heiman.Possibly an Americanized spelling of German Hamann or Heumann.
Boy/Male
Indian, Punjabi, Sikh
One who is Aware and Reflective
Boy/Male
Arabic, Muslim
One who Desires Another to do Something Effectively
Boy/Male
Muslim
Worker. Effective.
Boy/Male
Indian, Sanskrit
Not Defective; Healthy; Whole
Boy/Male
Anglo, Australian, Hindu, Indian, Kurdish, Punjabi, Sikh
Pain; Effective
EFFECTIVE POROSITY
EFFECTIVE POROSITY
EFFECTIVE POROSITY
EFFECTIVE POROSITY
EFFECTIVE POROSITY
EFFECTIVE POROSITY
EFFECTIVE POROSITY
adv.
Effectively.
n.
One who is capable of active service.
a.
Exerting the power of choice; selecting; as, an elective act.
a.
Throwing back images; as, a reflective mirror.
a.
Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workmen; an inefficient administrator.
a.
Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment.
a.
Effective, as a cause or agent; causing.
a.
Capable of exercising thought or judgment; as, reflective reason.
a.
Dependent on choice; bestowed or passing by election; as, an elective study; an elective office.
superl.
Vigorous; effective; forcible; powerful.
a.
Addicted to introspective or meditative habits; as, a reflective person.
a.
Not effective; ineffectual; futile; inefficient; useless; as, an ineffective appeal.
a.
Lacking some of the usual forms of declension or conjugation; as, a defective noun or verb.
n.
That which produces a given effect; a cause.
a.
Effective.
n.
Direct, forcible, and effective speaking.
n.
Specie or coin, as distinguished from paper currency; -- a term used in many parts of Europe.
n.
The quality of being effective.
a.
Wanting in something; incomplete; lacking a part; deficient; imperfect; faulty; -- applied either to natural or moral qualities; as, a defective limb; defective timber; a defective copy or account; a defective character; defective rules.
a.
Not effective.