packing density

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packing density

[′pak·iŋ ‚den·səd·ē]
(computer science)
The amount of information per unit of storage medium, as characters per inch on tape, bits per inch or drum, or bits per square inch in photographic storage.
(electronics)
The number of devices or gates per unit area of an integrated circuit.
(geology)
A measure of the extent to which the grains of a sedimentary rock occupy the gross volume of the rock in contrast to the spaces between the grains; equal to the cumulative grain-intercept length along a traverse in a thin section.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

packing density

The number of bits or tracks per inch of recording surface. Also refers to the number of memory bits or other electronic components on a chip.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
The astronomer Johannes Kepler (1611) studied the packing of mono sized spheres to determine which was the most efficient way of packing in regard to packing densities and efficiency.
The values packing densities range within 70~92 kg/[m.sup.3] for Printex-U, 75~105 kg/[m.sup.3] for DK4A, 78~118 kg/[m.sup.3] for CB FW200, 88~242 kg/[m.sup.3] for SB 4A, and 160~327 kg/[m.sup.3] for SB 250, respectively.
However, Ulm's nanoindentation experiments (poking a tiny dot of cement paste with an even smaller needle and measuring the resistance), which relate the hardness of a nanoscale unit to its packing density, indicate that C-S-H particle strength occurs on a spectrum, suggesting that there could be more than two packing densities.
This power law relation demonstrates that the SERS signals become more sensitive to the molecule surface density at such low packing densities, from 3 x [10.sup.-13] to 1 x [10.sup.-14] mol/[mm.sup.2], with a molecular coverage from 0.2% to 6%.
The plates can provide high packing densities of up to 35 cables per plate, for wiring sizes from 3.2 to 6.5 0/D.
The outer diameter of 16 mm leads to higher packing densities. SnapN connectors (tools are not necessary) can be mated even in the tightest places.
Today's continuous miniaturization of components results in high packing densities within enclosures.
The larger recording surface provided by linear technology drives allows for greater storage capacities in linear products at equivalent data packing densities. Linear recording technique also allows the scaling of data transfer rate, adding more recording channels in parallel.
The Galaxy G3 Mini Coil is designed to have a random complex shape which may make the coil conformable and enable them to seek and fill open spaces in cerebral aneurysms to achieve higher packing densities, which have been shown to lower patient retreatment rates.
It is worth mentioning that the aforesaid experiments in the parts 1, 2, and 3 have been accomplished for two packing densities (77 and 110 [m.sup.2]/[m.sup.3], respectively), since two types of packings are depended.