Densitometry Dent

Density

Meanings and phrases

density

Pronunciation American British Australian Indian
n.
  1. the amount per unit size; denseness
  2. the spatial property of being crowded together; concentration; denseness; tightness; compactness

flux density

Pronunciation American British Australian Indian
n.
  1. (physics) the number of changes in energy flow across a given surface per unit area; flux
E.g.
  • The stacking factor is used when calculating the magnetic flux density within the core.
  • The surface emits a radiative flux density F according to the Stefan-Boltzmann law: where σ is the Stefan-Boltzmann constant.
  • Thus ε plays the role of neatly blending, or averaging, the two streams of radiation in the calculation of the outward flux density.

flux density unit

Pronunciation American British Australian Indian
n.
  1. a measure of the amount of flux per unit of cross sectional area

low density

Pronunciation American British Australian Indian
n.
  1. a rarified quality; rarity; tenuity
E.g.
  • It can also penetrate into the forest habitat, but has low density there.
  • The bubbles also give the wetsuit a low density, providing buoyancy in water.
  • Primary factors usually include high electrical conductivity, and low density.

magnetic flux density

Pronunciation American British Australian Indian
n.
  1. the amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow; magnetic field strength; magnetic intensity; magnetic induction

optical density

Pronunciation American British Australian Indian
n.
  1. (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation; transmission density; photographic density; absorbance

photographic density

Pronunciation American British Australian Indian
n.
  1. (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation; optical density; transmission density; absorbance

relative density

Pronunciation American British Australian Indian
n.
  1. the ratio of the density of something to the density of a standard

transmission density

Pronunciation American British Australian Indian
n.
  1. (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation; optical density; photographic density; absorbance

vapor density

Pronunciation American British Australian Indian
n.
  1. the density of a gas relative to the density of hydrogen; vapour density

vapour density

Pronunciation American British Australian Indian
n.
  1. the density of a gas relative to the density of hydrogen; vapor density

very low density lipoprotein

Pronunciation American British Australian Indian
n.
  1. large lipoproteins rich in triglycerides; VLDLs circulate through the blood giving up their triglycerides to fat and muscle tissue until the VLDL remnants are modified and converted into LDL; VLDL

population density

Pronunciation American British Australian Indian
E.g.
  • With an area of , it has a population density of .
  • The population density was 5,113/sq mi (1,974/km2).
  • Its population density is 78.04 inhabitants per km.

average density

Pronunciation American British Australian Indian
E.g.
  • There were housing units at an average density of .
  • There were 484 housing units at an average density of .
  • There were 101 housing units at an average density of .

high density

Pronunciation American British Australian Indian
E.g.
  • The town has a high density of supercentenarians.
  • The last widely adopted diskette was the 3½-inch high density.
  • The River Oaks campus was leveled and is now high density housing.

energy density

Pronunciation American British Australian Indian
E.g.
  • During inflation, the energy density in the inflaton field is roughly constant.
  • Similar to LFP, LYP batteries offer high energy density, good safety and long life.
  • The raw energy density of liquid ammonia is 11.5 MJ/L, which is about a third that of diesel.

probability density

Pronunciation American British Australian Indian
E.g.
  • The simulator displays the results as a probability density map that can be animated over the drift duration.
  • The probability density function (pdf) for the noncentral "F"-distribution is when formula_9 and zero otherwise.
  • This function is fitted to the distribution of detection ranges represented as a probability density function (PDF).

density function

Pronunciation American British Australian Indian
E.g.
  • Assume "K" to be a symmetric kernel density function with unit variance.
  • A common model is the exponential failure distribution, which is based on the exponential density function.
  • The probability density function (pdf) for the noncentral "F"-distribution is when formula_9 and zero otherwise.

electron density

Pronunciation American British Australian Indian
E.g.
  • Most chemical reaction in general involves a change in electron density.
  • Different molecular orbitals have different spatial distribution of the electron density.
  • Similarly, positron annihilation can be used as an indirect measurement of local electron density.
E.g.
  • The probability density function (pdf) for the noncentral "F"-distribution is when formula_9 and zero otherwise.
  • This function is fitted to the distribution of detection ranges represented as a probability density function (PDF).
  • The probability density function (PDF) for a particle in one dimension is found by solving the one-dimensional diffusion equation.

current density

Pronunciation American British Australian Indian
E.g.
  • This way, vertical information can be extracted from the current density images.
  • A magnetic field image can be converted to a current density image in about 1 or 2 seconds.
  • The Scanning SQUID Microscopy (SSM) data are current density images and current peak images.

higher density

Pronunciation American British Australian Indian
E.g.
  • While WASP-17b has a density of g/cm, WASP-39b has a slightly higher density of g/cm.
  • This is because higher density populations often imply more competition for resources.
  • Research published in 2009 shows a much higher density of stream channels than formerly believed.

power density

Pronunciation American British Australian Indian
E.g.
  • Typical power density is 30 W/cm³ or greater.
  • Pumps have a power density about ten times greater than an electric motor (by volume).
  • Calculation of wind power density includes the effect of wind velocity and air density.

charge density

Pronunciation American British Australian Indian
E.g.
  • These are commonly called charge density waves, and they are an example of collective charge transport.
  • Field effects can therefore tune the acidity or basicity of bonds within their fields by donating or withdrawing charge density.
  • This deformation of the lattice causes another electron, with opposite spin, to move into the region of higher positive charge density.

lower density

Pronunciation American British Australian Indian
E.g.
  • The Integrator was test flown at lower density altitudes.
  • As the magma rises, it eventually reaches regions of lower density.
  • By buoyancy the air, which has a lower density than the liquid, rises quickly.

low population density

Pronunciation American British Australian Indian
E.g.
  • The town is characterised by low population density.
  • The region has a very low population density.
  • Owing to the low population density, most of the land is located in the Unorganized Borough.

density matrix

Pronunciation American British Australian Indian
E.g.
  • in such a basis the density matrix is diagonal.
  • However, one can again find the time evolution of the density matrix formula_13 rsp.
  • Mathematically, for a given density matrix formula_13, the von Neumann entropy formula_12 is formula_15.

bone density

Pronunciation American British Australian Indian
E.g.
  • Likewise, an athlete's bone density may decrease, but may not yet have dropped below her age-matched normal range.
  • Several studies have shown that bone density may be measured by QCT using CT images that were ordered for other purposes.
  • Cycling while seated is a relatively non-weight bearing exercise that, like swimming, does little to promote bone density.

mass density

Pronunciation American British Australian Indian
E.g.
  • This is not the same thing as volumetric mass density.
  • The tubes averaged a height of 380 nm and a mass density of 1.6 g cm.
  • To determine volumetric mass density, one must first discount the volume of the void fraction.

highest density

Pronunciation American British Australian Indian
E.g.
  • The highest density was reached in the 2nd century.
  • The highest density is reached in Montserrat.
  • Cologne has the country's highest density of pubs per capita.

density functional

Pronunciation American British Australian Indian
E.g.
  • This is where density functional theory comes in.
  • The data for the animation was obtained from density functional theory molecular dynamics computer simulations.
  • The density functional theory (DFT) has been widely used since the 1970s for band structure calculations of variety of solids.

air density

Pronunciation American British Australian Indian
E.g.
  • Calculation of wind power density includes the effect of wind velocity and air density.
  • The dynamic pressure on a rocket varies with air density and the square of relative velocity.
  • These missions have also investigated air density, radio astronomy, geodesy, and gamma ray astronomy.

high population density

Pronunciation American British Australian Indian
E.g.
  • Mass slavery requires economic surpluses and a high population density to be viable.
  • The country has a high population density, few natural resources, and a fragile soil.
  • The beaches are associated with a high population density of tourists in high season.

density of states

Pronunciation American British Australian Indian
E.g.
  • A more recent quantum description is given in terms of atomic contributions to the electronic density of states.
  • The biggest problem in performing a multicanonical ensemble is that the density of states has to be known "a priori".
  • From the Fermi golden rule, the transition probabilities can be written as where formula_2 is the density of states.

density functional theory

Pronunciation American British Australian Indian
E.g.
  • This is where density functional theory comes in.
  • The data for the animation was obtained from density functional theory molecular dynamics computer simulations.
  • The density functional theory (DFT) has been widely used since the 1970s for band structure calculations of variety of solids.
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