Icosahedral in a sentence

The icosahedral order is in equilibrium in the liquid state for the stable quasicrystals, whereas the icosahedral order prevails in the undercooled liquid state for the metastable quasicrystals.

For a small icosahedral structure, this angle is small and acute.

An icosahedral structure can be regarded as being constructed from 12 pentamers.

A protein common to the families Bicaudaviridae, Lipotrixviridae and Rudiviridae and the unclassified virus Sulfolobus turreted icosahedral virus is known suggesting a common origin.

Around this time, intense theoretical group theory activity also predicted that C 60 should have only four IR-active vibrational bands, on account of its icosahedral symmetry.

Capsid proteins of most icosahedral ssRNA and ssDNA viruses display the same structural fold, the eight-stranded beta-barrel, also known as the jelly-roll fold.

However, multiple boron atoms reacting with each other have a tendency to form novel dodecahedral (12-sided) and icosahedral (20-sided) structures composed completely of boron atoms, or with varying numbers of carbon heteroatoms.

Instead it has a number of complicated structures in which icosahedral B 12 clusters dominate.

Nevertheless, there is a common feature observed in most quasicrystal-forming liquid alloys or their undercooled liquids: a local icosahedral order.

Other morphologies have also been described: spindle shaped, rod shaped, filamentous, icosahedral and spherical.

See icosahedral symmetry: related geometries for further history, and related symmetries on seven and eleven letters.

The ancestral tailed phage had an icosahedral head of about 60 nanometers in diameter and a long non contractile tail with sixfold symmetry.

The idea was quickly rationalized as the basis of an icosahedral symmetry closed cage structure.

The majority of viruses have capsids with either helical or icosahedral citation citation structure.

The multiple polyhedral structure was termed later by many researchers as icosahedral glass but in effect it embraces any arrangement of polyhedra connected with definite angles and distances (this general definition includes tiling, for example).

Toys and games Icosahedral dice with twenty sides have been used since ancient times.

Triangulation number Virus capsid T-numbers Icosahedral virus capsids are typically assigned a triangulation number (T-number) to describe the relation between the number of pentagons and hexagons i.e. their quasi-symmetry in the capsid shell.