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Proportion of the total volume of a constituent part
fluid mechanics, the volume fraction φ i {\displaystyle \varphi _{i}} is defined as the volume of a constituent Vi divided by the volume of all constituents
Volume_fraction
Mathematical element in composite engineering
Fiber volume ratio is an important mathematical element in composite engineering. Fiber volume ratio, or fiber volume fraction, is the percentage of fiber
Fiber_volume_ratio
Set of units to describe small values
miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantity-per-quantity measures, they are pure numbers
Parts-per_notation
Volume percentage of red blood cells in blood
the hematocrit, such as packed cell volume (PCV), volume of packed red cells (VPRC), or erythrocyte volume fraction (EVF). The term hematocrit (or haematocrit
Hematocrit
Fraction of one substance's mass to the mass of the total mixture
mixture in a dimensionless size; mole fraction (percentage by moles, mol%) and volume fraction (percentage by volume, vol%) are others. When the prevalences
Mass_fraction_(chemistry)
Ratio of part of a mixture to the whole
(not to be confused with volume fraction) is defined as the volume of a constituent V i {\displaystyle V_{i}} divided by the volume of the mixture V {\displaystyle
Concentration
Proportion of a constituent in a mixture
In chemistry, the mole fraction or molar fraction, also called mole proportion or molar proportion, is a quantity defined as the ratio between the amount
Mole_fraction
Portion of blood pumped per heartbeat
ejection fraction (LVEF), is calculated by dividing the volume of blood pumped from the left ventricle per beat (stroke volume) by the volume of blood
Ejection_fraction
Material made from a combination of two or more unlike substances
upon the volume fraction of the strong phase. Thus, the tensile strength of the composite can be expressed in terms of the volume fraction. ( T . S
Composite_material
Measure of how much alcohol is in a liquid
as volume fraction expressed as a percentage. Volume fraction, which is widely used in chemistry (commonly denoted as v/v), is defined as the volume of
Alcohol_by_volume
Mathematical expression
}}}}}}} A continued fraction is a mathematical expression written as a fraction whose denominator contains a sum involving another fraction, which may itself
Continued_fraction
American comic book writer (born 1975)
Matt Fritchman (born December 1, 1975), better known by the pen name Matt Fraction, is an American comic book writer, known for his work as the writer of
Matt_Fraction
count, or sometimes fraction of molecules in gases), or by volume fraction. Volume fraction is a common abundance measure in mixed gases such as planetary
Abundance of the chemical elements
Abundance_of_the_chemical_elements
Ratio of two numbers
A fraction (from Latin: fractus, "broken") represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English
Fraction
Packing method for objects
spheres is an empirical parameter used to characterize the maximum volume fraction of solid objects obtained when they are packed randomly. For example
Random_close_pack
Free-surface modelling technique
single scalar variable per grid cell representing the volume fraction of fluid in it. Thereby, the volume of fluid is governed by an advection equation. This
Volume_of_fluid_method
Process of forming new, defect-free crystal grains within a material
time increment dt and the grains are assumed to be spherical then the volume fraction will be: f = 4 3 π N ˙ G 3 ∫ 0 t ( t − t 0 ) 3 d t = π 3 N ˙ G
Recrystallization (metallurgy)
Recrystallization_(metallurgy)
Heat treatment technique used to increase the yield strength of malleable materials
{\displaystyle r} is the particle radius, f {\displaystyle f} is the particle volume fraction, b {\displaystyle b} is the burgers vector, r f / b {\displaystyle
Precipitation_hardening
Gas layer surrounding Earth
climate conditions that allow life to exist and evolve on Earth. By mole fraction (i.e., by quantity of molecules), dry air contains 78.08% nitrogen, 20
Atmosphere_of_Earth
Phenomenon in solid-state physics
two-phase ceramic materials, with a focus on optimizing particle shape and volume fraction. Fracture mechanics is a fundamental discipline for understanding the
Faber–Evans_model
Lattice model of polymer solutions
{\displaystyle T} is the absolute temperature. The volume fraction is analogous to the mole fraction, but is weighted to take account of the relative sizes
Flory–Huggins_solution_theory
Pressure of a component gas in a mixture
is calculated as: partial pressure = (total absolute pressure) × (volume fraction of gas component) For the component gas "i": pi = P × Fi For example
Partial_pressure
Description of constant-temperature solid phase changes
randomly, the fraction of the extended volume that forms during each time increment that is real will be proportional to the volume fraction of untransformed
Avrami_equation
Relation between properties and composition of a compound
1 V 1 + V 2 {\displaystyle f={\frac {V_{1}}{V_{1}+V_{2}}}} is the volume fraction of the first constituent E 1 , E 2 {\displaystyle E_{1},E_{2}} are
Rule_of_mixtures
Method of approximating the properties of a composite material
_{m}} and ε d {\displaystyle \varepsilon _{d}} with corresponding volume fractions c m {\displaystyle c_{m}} and c d {\displaystyle c_{d}} , D.A.G. Bruggeman
Effective medium approximations
Effective_medium_approximations
Topics referred to by the same term
sociologist Ville Valo (VV; born 1976), Finnish musician v/v (volume by volume), the volume fraction VV Cephei, a star system Vorontsov-Vel'yaminov Interacting
VV
Measure of alcohol content
specific gravity. Fifty percent alcohol by volume was defined as 100 proof. This is different from 50% volume fraction (expressed as a percentage); the latter
Alcohol_proof
Type of polycrystalline material
atomic volume in the amorphous phase, T m {\displaystyle T_{m}} is the melting temperature, and f g {\displaystyle f_{g}} is the volume fraction of material
Nanocrystalline_material
Physical process
aggregate material behave as a solid. The system may be able to unjam if volume fraction is decreased, or external stresses are applied such that they exceed
Jamming_(physics)
Material in which viscosity increases with the rate of shear strain
behavior are: particle size and particle size distribution, particle volume fraction, particle shape, particle-particle interaction, continuous phase viscosity
Dilatant
Twenty-first letter in the Greek alphabet
the symbol. In emulsion and suspension science, Φ often denotes the volume fraction of the dispersed phase. Archaically used in chemistry for phenyl group
Phi
Highly viscous liquid exhibiting a kind of semi-solid behavior
polymer volume fraction. Suppose the initial gel has a polymer volume fraction of ϕ 0 {\displaystyle \phi _{0}} , the polymer volume fraction after swelling
Gel
Measure of solute's contribution to viscosity
kinematic) viscosity of the solution and ϕ {\displaystyle \phi } is the volume fraction of the solute in the solution, then intrinsic viscosity is defined
Intrinsic_viscosity
with an ordered L12 structure. But Al–Sc alloys contain a much lower volume fraction of precipitates, and the inter-precipitate distance is much smaller
Aluminium–scandium_alloys
Ratio of void volume and total volume of a porous material
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, between
Porosity
Small crystal which forms under certain conditions
small fraction of the material. However, very small grain sizes are achievable. In nanocrystalline solids, grain boundaries become a significant volume fraction
Crystallite
Topics referred to by the same term
packing factor, the fraction of volume in a crystal structure that is occupied by the constituent particles Packing fraction (mass spectrometry), the atomic
Packing_fraction
Mechanical process
a function of their size and shape, centrifugal acceleration, the volume fraction of solids present, the density difference between the particle and
Centrifugation
Colloid consisting of granular material and water
of sand sediment form; it is because of the formation of these high volume fraction regions that the viscosity of the quicksand seems to decrease suddenly
Quicksand
Homogeneous mixture of a solute and a solvent
collectively called concentration. Examples include molarity, volume fraction, and mole fraction. The properties of ideal solutions can be calculated by the
Solution_(chemistry)
applications of stereology include: calculating the volume fraction of quartz in a rock by measuring the area fraction of quartz on a typical polished plane section
Stereology
Conglomeration of discrete solid, macroscopic particles
the critical volume fraction ϕ c {\displaystyle \phi _{c}} . Define the distance to point J {\displaystyle J} , the critical volume fraction, Δ ϕ ≡ ϕ −
Granular_material
Equation in polymer science
{\displaystyle \nu _{2}} is the volume fraction of polymer in the swollen mass, V 1 {\displaystyle V_{1}} the molar volume of the solvent, n {\displaystyle
Flory–Rehner_equation
Thermodynamically stable, isotropic mixture of oil, water, and surfactant
corresponding volume fraction is 100%. Moving away from that corner reduces the volume fraction of that specific component and increases the volume fraction of one
Microemulsion
Model particles in statistical mechanics
sphere system exhibits a fluid-solid phase transition between the volume fractions of freezing η f ≈ 0.494 {\displaystyle \eta _{\mathrm {f} }\approx
Hard_spheres
Type of steel with a ferritic–martensitic microstructure
Therefore, the overall behaviour of DP steels is governed by the volume fraction, morphology (size, aspect ratio, interconnectivity, etc.), the grain
Dual-phase_steel
Relationship between two numbers of the same kind
be converted to a dimensionless ratio, as in weight/weight or volume/volume fractions. The locations of points relative to a triangle with vertices A
Ratio
Class of extremely unreactive, inert and fire-resistant polymers
will form due to hydrophobic force. If the volume fraction of the polymers exceeds the critical volume fraction, the micellar segregates will be packed to
Liquid-crystal_polymer
same void fraction as the sample it represents and each particle type in the sample has the same volume fraction and surface area fraction as does the
Representative_layer_theory
Chemical compound
hardening. In these alloys the volume fraction of the γ' precipitates is as high as 80%. Because of this high volume fraction, the evolution of these γ' precipitates
Nickel_aluminide
Study of flow properties of blood and its elements of plasma and cells
processes. Blood viscosity is determined by plasma viscosity, hematocrit (volume fraction of red blood cell, which constitute 99.9% of the cellular elements)
Hemorheology
Mass per unit volume of the Earth's atmosphere
density of air or atmospheric density, denoted ρ, is the mass per unit volume of Earth's atmosphere at a given point and time. Air density, like air pressure
Density_of_air
Mixture of an insoluble substance microscopically dispersed throughout another substance
aggregation due to entropic effects. Unstable colloidal suspensions of low-volume fraction form clustered liquid suspensions, wherein individual clusters of particles
Colloid
Identity, arrangement, and ratio of the elements that make up a compound
composition of a mixture. It may be expressed as molar fraction, volume fraction, mass fraction, molality, molarity or normality or mixing ratio. Chemical
Chemical_composition
Type of alloy steel
matrix. This eliminates the toughness-reducing effect of a pearlitic volume fraction yet maintains and increases the material's strength by refining the
High-strength_low-alloy_steel
Quantity of a three-dimensional space
This method is common for measuring small volume of fluids or granular materials, by using a multiple or fraction of the container. For granular materials
Volume
Term used in composite materials theory
straightforward manner. The RVE has the same elastic constants and fiber volume fraction as the composite. In general RVE can be considered same as a differential
Representative elementary volume
Representative_elementary_volume
Mass per unit volume
volume of the void fraction. Sometimes this can be determined by geometrical reasoning. For the close-packing of equal spheres the non-void fraction can
Density
boundary is that expected for a random distribution of particles. For a volume fraction, F v {\displaystyle F_{v}} , of randomly distributed spherical particles
Zener_pinning
System for waste clearance in the brain
water movement through the brain parenchyma slows as the extracellular volume fraction decreases and becomes more tortuous. The continuity between the brain
Glymphatic_system
Group of snails
capabilities of limpet teeth. This is further supported by the large mineral volume fraction of elongated goethite nanofibers within limpet teeth, around 0.81.
Limpet
Topics referred to by the same term
Mass fraction (or "% w/w" or "wt.%"), for percent mass Volume fraction (or "% v/v" or "vol.%"), volume concentration, for percent volume "Mass/volume percentage"
Percentage_solution
Bulge in the wall of a blood vessel
aortas have a much higher volume fraction of collagen and ground substance (54.8% vs. 95.6%) and a much lower volume fraction of elastin (22.7% vs. 2.4%)
Aneurysm
Processes involved in the separation of isotopes
Isotope fractionation describes fractionation processes that affect the relative abundance of isotopes, a phenomenon that occurs (and so advantage is
Isotope_fractionation
Tissue element that supports or anchors a framework of parts within a body or organ
trabeculae and sustaining blood supply to deep tissue osteocytes. Bone volume fraction (BV/TV) was found to be relatively constant for the variety of animal
Trabecula
properties, such as hardness and elastic modulus, can be linked to the volume fraction of each phase, with the rule of mixtures giving an upper bound and
Liquid_phase_sintering
Very small scale structure of material
robust technique for determination of morphological features such as volume fraction, inclusion morphology, void and crystal orientations. To acquire micrographs
Microstructure
Aspect of anatomy
exclusion effect is the exclusion of electrolytes from the fraction of the total blood plasma volume that is occupied by solids. This phenomenon plays an important
Electrolyte_exclusion_effect
Steel microstructure characterized by long needle-like grains
Composition control of weld metal is often performed to maximise the volume fraction of acicular ferrite due to the toughness it imparts. During continuous
Acicular_ferrite
Alloy with higher durability than normal metals
For this reason, this γ' intermetallic phase, when present in high volume fractions, increases the strength of these alloys due to its ordered nature and
Superalloy
Infinitely connected triply periodic minimal surface
of the gyroid and made further numerical investigations about the volume fractions of the minimal and CMC gyroids. The gyroid separates space into two
Gyroid
Method of strengthening materials by changing grain size
It was concluded that by plotting both the volume fraction of grain boundary sliding and volume fraction of intragrain dislocation motion as a function
Grain_boundary_strengthening
including scalar, vector, and tensor variables; volume fraction-based materials; and mass fraction-based species. It fully supports block structured
Silo_(library)
Medical condition
preserved ejection fraction (HFpEF, hef-PEF) is a form of heart failure in which the ejection fraction – the percentage of the volume of blood ejected from
Heart failure with preserved ejection fraction
Heart_failure_with_preserved_ejection_fraction
found that average trabecula fiber width was 30μm, and the average volume fraction was 26%. Arachnoid trabeculae are surrounded by fibroblast cells. There
Arachnoid_trabeculae
Fraction of a space filled by objects packed into that space
A packing density or packing fraction of a packing in some space is the fraction of the space filled by the figures making up the packing. In simplest
Packing_density
Rule in materials science
of the components are equal or nearly equal. If the concept of the volume fraction is introduced, density, coefficient of thermal expansion, compressibility
Vegard's_law
State in which a suspension's settling rate is the same as its diffusion rate
_{0}e^{-z/l_{g}}} where Φ ( z ) {\displaystyle \Phi (z)} is the colloidal particle volume fraction as a function of vertical distance z {\displaystyle z} above reference
Sedimentation_equilibrium
Ballpoint pen with less viscous ink
shall remain visible when tested with a 50% aqueous ethanol solution (volume fraction). Hydrochloric acid resistance – The line shall remain visible when
Rollerball_pen
Finite sum of distinct unit fractions
An Egyptian fraction is a finite sum of distinct unit fractions, such as 1 2 + 1 3 + 1 16 . {\displaystyle {\frac {1}{2}}+{\frac {1}{3}}+{\frac {1}{16}}
Egyptian_fraction
Silicate mineral or igneous rock that is rich in magnesium and iron
proportion of pyroxene and olivine, so that their color index (the volume fraction of dark mafic minerals) is between 50 and 90. Most mafic volcanic rocks
Mafic
Hollow sphere made largely of silica and alumina and filled with gas
J.D, Jha A.K, Rao H & Kumar H (2016) Effect of Cenosphere Size and Volume Fraction on the Microstructure and Deformation Behavior of Ti-Cenosphere Syntactic
Cenosphere
to microcrystalline phase in the silicon thin film. The crystalline volume fraction (as measured from Raman spectroscopy) is another criterion to describe
Nanocrystalline_silicon
Indian American materials scientist
particle reinforcement as an important parameter, in addition to the volume fraction, for controlling the properties of syntactic foams. Another development
Nikhil_Gupta
Chemical compound
a poor determination of particle radii and determination of solid volume fraction. It is a standard coupling partner of cross coupling reactions. Similarly
Bromocyclohexane
due to gravity, Φ the particle volume fraction, ρ the particle density, ρo the medium density, λ the specific volume conductivity, and η the viscosity
Sedimentation_potential
Slanting line punctuation mark (/)
modern period and comma, the slash is now used to represent division and fractions, as a date separator, in between multiple alternative or related terms
Slash_(punctuation)
Simultaneous flow of materials with two or more thermodynamic phases
disperse and continuous phase are treated as fluids. The concept of a volume fraction is introduced for each phase, discussed in the parameter section below
Multiphase_flow
Ordered arrangement of atoms, ions, or molecules in a crystalline material
small fraction of the material. However, very small grain sizes are achievable. In nanocrystalline solids, grain boundaries become a significant volume fraction
Crystal_structure
percentage. GVF – Gas volume fraction is the ratio of the gas volumetric flow rate to the total volumetric flow rate. LVF – Liquid volume fraction is the ratio
Wet_gas
Hard, brittle internal structure found in all members of the family Sepiidae
of a composite will be dominated by the material with the largest volume fraction, the cuttlebone is also stiff. The specific stiffness of the cuttlebone
Cuttlebone
Gas law describing volume of a gas mixture
{n_{i}}{n}}} is the mole fraction of the i-th component of the gas mixture. It follows that the mole fraction and volume fraction are the same. This is true
Amagat's_law
background quantities such as fluid velocity, temperature, and fluid volume fraction. These reconstructed fields are subsequently used to evaluate momentum
CFD-DEM
Science and technology of creating objects from inorganic, non-metallic materials
usually no pressing and sintering, glass-ceramics do not contain the volume fraction of porosity typically present in sintered ceramics. The term mainly
Ceramic_engineering
Measurement in cardiovascular physiology
also used to calculate ejection fraction, which is stroke volume divided by end-diastolic volume. Because stroke volume decreases in certain conditions
Stroke_volume
Mathematical models for calculating viscosity
free volume theory (short FV theory and FV model) originates from Doolittle (1951) who proposed that viscosity is related to the free volume fraction f ν
Viscosity_models_for_mixtures
Poisonous gas consisting of carbon and oxygen
without a catalytic converter Parts per million by volume (note: volume fraction is equal to mole fraction for ideal gas only, see volume (thermodynamics))
Carbon_monoxide
Volume occupied by one mole of a substance
related fields, the molar volume, symbol Vm, or V ~ {\displaystyle {\tilde {V}}} of a substance is the ratio of the volume (V) occupied by a substance
Molar_volume
Energy transfer influence
strongly influenced by the soil volumetric water content, volume fraction of solids and volume fraction of air. Air is a poor thermal conductor and reduces
Soil_thermal_properties
Materials science concept
Giannaros, P.; Al-Tabbaa, A. (2016-09-30). "The effect of varying volume fraction of microcapsules on fresh, mechanical and self-healing properties of
Self-healing_concrete
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