# Density

## Meanings and phrases

n.

- the amount per unit size; denseness
- the spatial property of being crowded together; concentration; denseness; tightness; compactness

n.

- (physics) the number of changes in energy flow across a given surface per unit area; flux

- 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.

n.

- a measure of the amount of flux per unit of cross sectional area

n.

- a rarified quality; rarity; tenuity

- 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.

n.

- the amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow; magnetic field strength; magnetic intensity; magnetic induction

n.

- (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation; transmission density; photographic density; absorbance

n.

- (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation; optical density; transmission density; absorbance

n.

- the ratio of the density of something to the density of a standard

n.

- (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation; optical density; photographic density; absorbance

n.

- the density of a gas relative to the density of hydrogen; vapour density

n.

- the density of a gas relative to the density of hydrogen; vapor density

n.

- 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

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.

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 .

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.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.