A packing density or packing fraction of a packing in some space is the fraction of the space filled by the figures making up the packing. In simplest...
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space filled by the spheres is called the packing density of the arrangement. As the local density of a packing in an infinite space can vary depending...
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circle can be enlarged without creating an overlap. The associated packing density, η, of an arrangement is the proportion of the surface covered by the...
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the highest average density – that is, the greatest fraction of space occupied by spheres – that can be achieved by a lattice packing is π 3 2 ≈ 0.74048...
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achieve a packing density greater than any smaller number > 1. (Higher density records all have rattles.) Disk covering problem Square packing in a circle...
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find the configuration that packs a single container with the maximal packing density. More commonly, the aim is to pack all the objects into as few containers...
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Heptagon (section Tiling and packing)
double lattice packing of the Euclidean plane of packing density approximately 0.89269. This has been conjectured to be the lowest density possible for...
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otherwise the optimal packing density of spheres could be surpassed by putting a sphere in each rhombicuboctahedron of the hypothetical packing which surpasses...
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monolayer (SAM) enable variations of desired probe packing density. The density of aptamer packing on the electrode surface is an important parameter...
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Permutation pattern (section Packing densities)
is only one nontrivial packing density. Walter Stromquist (unpublished) settled this case by showing that the packing density of 132 is 2√3 − 3, approximately...
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higher the packing density, the less empty space there is in the packing and thus the smaller the volume of the hull (in comparison to other packings with the...
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Random close pack (redirect from Random close packing)
close-packed density for this particular procedure of packing. The random close packing is the highest possible volume fraction out of all possible packing procedures...
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three-dimensional equivalent of the circle packing in a circle problem in two dimensions. Best packing of m>1 equal spheres in a sphere setting a new density record...
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disordered packing at densities exceeding 78%. For a periodic approximant to a quasicrystal with an 82-tetrahedron unit cell, they obtained a packing density as...
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923,} which is the density of one possible double lattice packing for these shapes. The best proven upper bound on the packing density is approximately...
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Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ρ (the...
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Packing fraction may refer to: Packing density, the fraction of the space filled by objects comprising the packing Atomic packing factor, the fraction...
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three-dimensional convex body with lower packing density than the sphere? More unsolved problems in mathematics Ulam's packing conjecture, named for Stanisław...
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In crystallography, atomic packing factor (APF), packing efficiency, or packing fraction is the fraction of volume in a crystal structure that is occupied...
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any edge-to-edge tiling made by regular polygons: The maximum known packing density of a regular pentagon is ( 5 − 5 ) / 3 ≈ 0.921 {\displaystyle (5-{\sqrt...
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This number is a measure of the local packing density around a given residue. The influence of local packing density can be assessed by series expansion...
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nanoparticles. The methods differ by their ability to control particle packing density and layer thickness, ability to use different particles and the complexity...
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eyes. AOSLO has also revealed significant decreases in foveal cone packing density for myopic eyes in comparison to emmetriopic eyes. This difference...
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called asymptotic density) Dirichlet density Packing density Density (polytope) Density on a manifold Tensor density in differential geometry Dense set...
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chemistry. Barium ferrite is a highly magnetic material, has a high packing density,[clarification needed] and is a metal oxide. Studies of this material...
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Kepler conjecture (category Packing problems)
sphere packing in three-dimensional Euclidean space. It states that no arrangement of equally sized spheres filling space has a greater average density than...
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head size. Furthermore, bird brains have two-to-four times the neuron packing density of mammal brains, for higher overall efficiency. The visual and auditory...
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Circle packing in a square is a packing problem in recreational mathematics where the aim is to pack n unit circles into the smallest possible square....
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aneurysms by limiting blood circulation to the aneurysm space. Clinically, packing density is recommended to be 20-30% or more of the aneurysm's volume, typically...
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Sphere packing in a cylinder is a three-dimensional packing problem with the objective of packing a given number of identical spheres inside a cylinder...
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