Combining all of these considerations and providing an optimized structure for random packings
can be challenging, but the results offer improved separation efficiency inside the column.
Then we tested metal models of standard, short layered packings
Therefore, the following requirements are imposed on biofilter packings
: high specific surface, porosity and low aerodynamic resistance.
The experimental clues led the researchers to develop a model that successfully captures the geometry, connectivity, and density of the observed sphere packings
Engineers use high-dimensional sphere packings
to generate the error-correcting codes that electronic equipment uses for communication (SN: 10/2/04, p.
Boroczky (Hungarian Academy of Sciences) builds from the foundation set by Toth (Regular Figures) and Rogers (Packing
and Covering) by describing arrangements of congruent convex bodies that either form a packing
in a convex container or cover a convex shape, covering arrangements in dimension two (including congruent domains in the Euclidean plane, translative arrangements, parametric density, and packings
and coverings of circular discs) and arrangements in higher dimensions, including packings
and coverings by spherical and unit balls, and congruent convex bodies.
that harden, leave residue or tend to score shaft sleeves.
The latest techniques and packings
can be modified to suit all duties, hot or cold, and can now provide longer gland packing
life at high temperatures, as well as acid and hot gas/oil resistant packings
, while low friction materials can make for easier valve operation, combined with lower injection pressures.
, however, are intimately connected to what are called error-correcting codes.