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In condensed matter physics, the Kitaev chain is a simplified model for a topological superconductor. It models a one dimensional lattice featuring Majorana bound states . The Kitaev chain have been used as a toy model of semiconductor nanowires for the development of topological quantum computers .
In condensed matter physics, the Su–Schrieffer–Heeger (SSH) model or SSH chain is a one-dimensional lattice model that presents topological features. [1] It was devised by Wu-Pei Su, John Robert Schrieffer, and Alan J. Heeger in 1979, to describe the increase of electrical conductivity of polyacetylene polymer chain when doped, based on the existence of solitonic defects.
Bulk polymerization is carried out in the absence of any solvent or dispersant and is thus the simplest in terms of formulation. It is used for most step-growth polymers and many types of chain-growth polymers. In the case of chain-growth reactions, which are generally exothermic, the heat evolved may cause the reaction to become too vigorous ...
Density logging is a well logging tool that can provide a continuous record of a formation's bulk density along the length of a borehole.In geology, bulk density is a function of the density of the minerals forming a rock (i.e. matrix) and the fluid enclosed in the pore spaces.
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Tsubakimoto Chain Co. (株式会社椿本チエイン, Kabushiki-gaisha Tsubakimoto Chiein) (TYO: 6371) is a Japanese manufacturer of power transmission and roller chain products. It was founded in Osaka in 1917 as a bicycle chain manufacturer. Later it became the first roller chain manufacturer in Japan approved by Japanese Industrial Standards.