" Just as the Power Spectral Density ( PSD ) is the Fourier transform of the auto-covariance function we may define the Cross Spectral Density ( CSD ) as the Fourier transform of the cross-covariance function.

Sorting by Size and Density: Most fine coffee goes through a battery of machines that sort the coffee by density of bean and by bean size, all the while removing sticks, rocks, nails, and miscellaneous debris that may have become mixed with the coffee during drying.

These may be heuristics-based such as the Extended Kalman Filter or the Assumed Density Filters described in Peter S. Maybeck's book or more methodologically driven such as the projection filters introduced by Damiano Brigo, Bernard Hanzon and François Le Gland, some sub-families of which are shown to coincide with the Assumed Density Filters.

Density functional theory ( DFT ) methods are often considered to be ab initio methods for determining the molecular electronic structure, even though many of the most common functionals use parameters derived from empirical data, or from more complex calculations.

By 1978 Parr had realized that Density Functional Theory ( DFT ) would be extremely useful in quantitative calculations of chemical and biological systems, especially those with high molecular weights.

In " Lisa's Date With Density ", Nelson kisses Lisa, only to be berated by Jimbo, Kearney, and Dolph, who believe that kissing girls is " gay " ( Despite the events that occurred revolving around Jimbo in " New Kid On The Block ").

In excited states, chemical reactions or when a more accurate representation is needed, electronic behavior can be obtained from first principles by using a quantum mechanical method, such as Density Functional Theory.

At increased Density Altitude, for the same given indicated airspeed the aircraft's true airspeed ( TAS ) will be higher, but the same indicated airspeed limits ( IAS ) apply.

Density can then be calculated according to a molar form of the original formula:

* Density: The media should be denser than the material being ground.

Density matrices acting on H < sub > A </ sub > only constitute a proper subset of the operators on H < sub > A </ sub > and same can be said for system B.

Density altitude is the altitude in the International Standard Atmosphere at which the air density would be equal to the actual air density at the place of observation, or, in other words, the height when measured in terms of the density of the air rather than the distance from the ground.

Density altitude can be calculated from atmospheric pressure and temperature ( assuming dry air ).

Density, Bulk Density, or Wet Density,, are different names for the density of the mixture, i. e., the total mass of air, water, solids divided by the total volume of air water and solids ( the mass of air is assumed to be zero for practical purposes ):

Conversion of Cineon Printing Density ( CPD ) to Status-M can be estimated with a 3x3 matrix or by using tables contained in the Kodak " Digital LAD " document.

The most common reliability parameter is the mean time to failure ( MTTF ), which can also be specified as the failure rate ( this is expressed as a frequency or Conditional Probability Density Function ( PDF )) or the number of failures during a given period.

Density is desirable as weights must be as small as possible, in order to minimize visual cues which could drive fish away from a fishing operation.

So by reducing the number of tracks used and thus capacity, it was possible to further reduce cost-in contrast to Double Density drives used e. g. in IBM PC computers of the day which saved 180 kB on one side ( by using a 40 tracks format ).

* Electric Dipole Potential by Stephen Wolfram and Energy Density of a Magnetic Dipole by Franz Krafft.

Density contrasts between different sedimentary layers, such as between sand and clay, can result in flame structures or load casts, formed by inverted diapirism.

The plans have been opposed vehemently by many townspeople, most notably the Kings Park Coalition Against High Density Housing, and has become an important political issue in many local political campaigns.

Density increases to 6. 41 lb / US gallon at-40 ° C, and decreases by about 0. 5 % per 5 ° C ( 9 ° F ) increase in temperature.

A book, ' The Fundamentals of Density Functional Theory ' written by H. Eschrig, contains detailed mathematical discussions on the DFT ; there is a difficulty for N-particle system with infinite volume ; however, we have no mathematical problems in finite periodic system ( torus ).

* Medium Density Fibreboard by Design Technology Department

In the early 1990s two high-density optical storage standards were being developed: one was the MultiMedia Compact Disc ( MMCD ), backed by Philips and Sony, and the other was the Super Density disc ( SD ), supported by Toshiba, Matsushita and many others.

thesis, Low Density Parity Check Codes, was published by the M. I. T Press as a monograph in 1963.

* Fowler, W. A., " Temperature and Density Conditions for Nucleogenesis by Fusion Processes in Stars ", W. K. Kellogg Radiation Laboratory at the California Institute of Technology, United States Department of Energy ( through predecessor agency the Atomic Energy Commission, ( June 1958 ).

The first published recognition of the cosmic microwave background ( CMB ) radiation as a detectable phenomenon appeared in a brief paper by Soviet astrophysicists A. G. Doroshkevich and Igor Novikov, entitled " Mean Density of Radiation in the Metagalaxy and Certain Problems in Relativistic Cosmology ", in the spring of 1964.

Density 21. 5 is a piece of music for solo flute written by Edgard Varèse in 1936 and revised in 1946.

* Density 21. 5 – a piece of music for solo flute written by Edgard Varèse

If separation by Density is required, centrifugation is the most common method.

*" Density Stratification ", part of an educational website Water on the Web operated by the University of Minnesota, Duluth.

Dry Density,, is the mass of solids divided by the total volume of air water and solids:

Density of a sum of three variables.

Density of a mixture of three normal distributions ( μ = 5, 10, 15, σ = 2 ) with equal weights.

Density functional methods have been applied to investigate the transimination reaction, and the results have shown that the reaction involves three sequential steps: ( i ) formation of a tetrahedral intermediate with the active site lysine and the amino substrate bonded to the PLP cofactor ; ( ii ) nondirect proton transfer between the amino substrate and the lysine residue ; and ( iii ) formation of the external aldimine after the dissociation of the lysine residue.

DE-15 is also conventionally called RGB connector, D-sub 15, mini sub D15, mini D15, DB-15, HDB-15, HD-15 or HD15 ( High Density, to distinguish it from the older and less flexible DE-9 connector used on some older VGA cards, which has the same shell size but only two rows of pins ).

Density of ice increases slightly with decreasing temperature and has a value of 0. 9340 g / cm³ at − 180 ° C ( 93 K ).

: See Density for a table of the measured densities of water at various temperatures.

Density at minimum cost per transistor.

He performed Edgard Varèse's Density 21. 5 for solo flute at the Ojai Music Festival in 1962 and participated in Gunther Schuller's Third Stream efforts of the 1960s.

The High Energy Density Matter ( HEDM ) project pushed the world of basic research in the area of physics and chemistry to find rocket propellants to surpass the capabilities of propellants existent at that time.

Other efforts at the lab include electric and solar propulsion research, High Energy Density Matter ( HEDM ) propellant research, and Theater Missile Defense testing.

The pins are spaced at horizontally and vertically, in what is called High Density.

In 2001, Plum Creek at their Medium Density Fiberboard facility completed the installation of a biofilter, a new air emission treatment technology.

Density of residences is still low for an urban area at 1200 / km².

has no relevance at all to Density 21. 5.

And here, in the last two notes of Density 21. 5 we at last find B paired with its tritone associate.

* Density: 6. 44 g / cm < sup > 3 </ sup > ( at 20 ° C )

* Lombardo-Lattice QCD at Finite Temperature and Density

Density adjustments at different temperatures, corrections for soda-lime glass expansion and contraction and meniscus corrections for opaque oils are detailed in the Petroleum Measurement Tables, details of usage specified in ASTM D1250.

* Density ( at 15 ° C ) 779 – 806 kg / m³

*" Lisa's Date with Density " at The Simpsons. com