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

Density tools use gamma ray radiation to determine the lithology and porosity of the well environment.

Density contrasts can also cause small-scale faulting, even while sedimentation goes on ( syn-sedimentary faulting ).

Density also improves the effectiveness of caches and instruction prefetch cycles.

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 ).

The two also worked together on a paper in gravitational theory, ' Evaluation of the Cosmic Density Parameter, Omega ', concerning the component of omega due to mass.

Manufacturers also introduced other systems such as needle-based, record-style discs ( RCA's Capacitance Electronic Disc, JVC's Video High Density disc ) and Philips ' LaserDisc.

Density can also refer to:

Density also generally has a fairly direct effect on the performance within a particular medium, as well as price.

( The Digital Picture Exchange ( DPX ) file format is also used in those applications ; DPX files commonly store pixel data encoded according to Cineon Printing Density.

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.

The basic methodology is Density Functional Theory ( DFT ), but the code also allows use of post-DFT corrections such as hybrid functionals mixing DFT and Hartree-Fock exchange, many-body perturbation theory ( the GW method ) and dynamical electronic correlations within the random phase approximation.

" He also wrote " Team Homer " and " Lisa's Date with Density ".

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

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.

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.

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 independent dispersal: Organisms have evolved adaptations for dispersal that take advantage of various forms of kinetic energy occurring naturally in the environment.

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.

# Density matrices are specified to have trace 1, so Φ has to preserve the trace.

* Point defects in transition metals: Density functional theory calculations have been performed to study the systematic trends of point defect behaviours in bee transition metals.

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.

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 ).

SWP Microcomputer Products of Arlington, TX ( formerly Software Publishers ) provided the Bigboard Dual Density upgrade, which provided both hardware and software to allow the Big Board I to use dual density formats on its drives.

In 1974 – 75, Lee published several papers on " A New Form of Matter in High Density ", which led to the modern field of RHIC physics, now dominating the entire high energy nuclear physics field.

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

* Density function, a mathematical function which has a wide range of applications such as in the study of macromolecular structure

Molded in Low Density Polyethylene, Polyseal cone liners form to the inside of the bottle neck providing a leak-proof seal which guards against back-off and product evaporation.

Density: graphite's specific gravity is 2. 3, which makes it lighter than diamonds.

In 2007 Vagrant formed another imprint label, Density Records, which will release heavier material than has traditionally been released on the label.

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.

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.

Barangays Rosario, which includes contested areas between Municipality of Tagoloan and Municipality of Malitbog, Bukidnon and Sta Cruz, occupy relatively bigger areas ( 11. 2 %) than the other nine barangays. The Gross Population Density of Tagoloan in 2004 is 650 persons per square kilometer.

" Lisa's Date with Density " is the seventh episode of the animated television series The Simpsons < nowiki >'</ nowiki > eighth season, which originally aired December 15, 1996.

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.

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.

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

Density is often expressed in grams per cubic centimeter ( g / cm < sup > 3 </ sup >).

Density is an intensive property in that increasing the amount of a substance does not increase its density ; rather it increases its mass.

Density is highest in the southwest where Colombo, the country's main port and industrial center, is located.

Density and vesicularity ( gas bubbling ) of the volcanic products in question is not taken into account.

* Density altitude is the altitude corrected for non-ISA International Standard Atmosphere atmospheric conditions.

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 ").

Whistling a bar of " Density 21. 5 " is a traditional musical quote.

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.

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.

" 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.

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 ).

Density functional theory ( DFT ) is a quantum mechanical modelling method used in physics and chemistry to investigate the electronic structure ( principally the ground state ) of many-body systems, in particular atoms, molecules, and the condensed phases.

Density of board when evaluated in relation to density of the fiber that goes in to making of the panel is important.

It is a hybrid of Philips and Sony's MM-CD ( Multi-Media Compact DIsc ) format and Toshiba's SD ( Super Density ) format.

This is a Pretty Cool Drink, giving you the errors compensated for between the speeds Position, Compression and Density

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

Density dependence is the regulator process that allows the population to return to equilibrium after a perturbation.

This spacing is called Normal Density.