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 ).

Density was checked as development was occurring.

" Lisa's Date with Density " ( season eighth, 1996 ) was the first episode to center around Nelson and was used to explain why he acts the way he does.

JVC produced a system very similar to CED called Video High Density, it was launched in 1983 and marketed predominantly in Japan.

The trademarked SD logo was originally developed for the Super Density Disc, which was the unsuccessful Toshiba entry in the DVD format war.

Introduced in 1988 under the Trademark name FDHD ( Floppy Disk High Density ), the subsequently renamed SuperDrive was known primarily as an internally mounted floppy drive that was part of the Macintosh computer ; however, an external version of the drive was manufactured that came in a Snow White-styled plastic case.

The old nomenclature for this value was Optical Density ( OD ), current nomenclature is Absorbance Units ( AU ).

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.

Hebden's first solo release was the 1997 single " Double Density ", released on the Output label under the artist name 4T Recordings.

This allowed the use of Enhanced Density disks, and there was a utility to read DOS 3 disks.

Video High Density ( VHD ) was a videodisc format which was marketed predominantly in Japan by JVC.

There was also an audio-only variant, Audio High Density ( AHD ).

NASA's new Polar Orbiting Density Scanner ( PODS ), part of the Earth Observation System ( EOS ), a collection of satellites monitoring the globe for signs of large-scale change, has found an extremely dense spot in the Milne Ice Shelf.

C < sub > 60 </ sub > with isosurface of ground state electron density as calculated with Density functional theory | DFT

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

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.

Lisa has been friendly with several boys, including Ralph Wiggum in " I Love Lisa " ( season 4, 1993 ), Nelson Muntz in " Lisa's Date with Density " ( season 8, 1996 ) and Colin in The Simpsons Movie ( 2007 ).

Nelson shows the occasional glimpse of humanity, though, and other characters have occasionally warmed to him ; Lisa dates him briefly in " Lisa's Date With Density ", Marge informally adopts him in " Sleeping with the Enemy ," and Bart is shown as a friend to him several times, such as in " The Haw-Hawed Couple.

Density and pressure decrease smoothly with altitude, but temperature ( red ) does not.

Above the viewfinder is a filter bar used to slide a green or an orange filter in front of the lens ; starting with the BL, there is only a Neutral Density filter.

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 ).

Density logging tools contain a Caesium-137 gamma ray source which irradiates the formation with 662 keV gamma rays.

Density ( normalized to average density ) versus radius ( normalized to external radius ) for a polytrope with index n = 3.

It's Density is 770 kg / m³ and with color golden to dark brown.

In August 1989, Apple introduced the Macintosh SE FDHD with the new SuperDrive, a floppy disk drive that could handle 1. 4 MB High Density ( HD ) floppy disks.

Originally marketed as FDHD ( Floppy Disk High Density "), later some Macintosh SE FDHDs were labeled Macintosh SE Superdrive, to conform to Apple's marketing change with respect to their new drive.

On the below half, rendered with Density Estimation, the noise is smoothed out without destroying the sharp edges.

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

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

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.

Compatible with DOS 2. 0-Allowed the use of Double Density floppies.

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.

His works, published in Proceedings of the London Mathematical Society, were " Density integration " ( 53, 1951 ); " On the measure of sum sets ( I ) The theorems of Brunn, Minkowski, and Lusternik, ( with A. M. McBeath )" ( 3, 1953 ); " Linear functions with domain a real countably infinite dimensional space " ( 5, 1955 ); " Linear and bilinear functions with domain contained in a real countably infinite dimensional space " ( 6, 1956 ); " The use of convergence factors in Ward integration " ( 10, 1960 ); " The equivalence of generalized forms of the Ward, variational, Denjoy-Stieltjes, and Perron-Stieltjes integrals " ( 10, 1960 ); " N-variation and N-variational integrals of set functions " ( 11, 1961 ); " Definitions of Riemann type of the variational integrals " ( 11, 1961 ); " Difference-sets and the Banach – Steinhaus theorem " ( 13, 1963 ); " Generalized integrals of vector-valued functions ( 19 1969 )

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 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.

Density varies from 1 person per square kilometre ( 3 per sq.

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.

Density is not measured directly but is calculated from measurements of temperature, pressure and humidity using the equation of state for air ( a form of the ideal gas law ).

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 ranges from 0. 917 g / cc to 0. 933 g / cc.

Allmusic's Sean Hickey says, " According to the composer, Density 21. 5 is based on two melodic ideas — one modal, one atonal — and all of the subsequent material is generated from these two themes.

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

* Stereophile magazine names the best recordings, including " EDGARD VARÈSE: The Varèse Record Ionisation, Density 21. 5, Interpolations from Déserts, Octandre, Intégrales "

Another form of light weight row cover is made from High Density Polyethylene ( HDPE ) and is a knitted fabric.

Population Density of Buildwas from 1880 to 1960.

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.

For these reasons, the keraunic number has been replaced by more accurate Flash Density maps, which collect data from both ground-based and satellite lightning detectors.

Density of the tuff ranges from fine-grained to aphanitic and is densely welded.

Equivalent Circulating Density ( when forward circulating ) is defined as the apparent fluid density which results from adding annular friction to the actual fluid density in the well.