molecular crystal उदाहरण वाक्य

The major experiments are focused on physical phenomena in the absence of gravity, including fluid flows, flame propagation, heat transfer and the formation of molecular crystals of metals.
During this time he initiated, as applied to dams, theory of gravitational stresses in growing elastic bodies, and also developed a theory of exciton-phonon coupling in molecular crystals.
Molecular crystals, liquid crystals, colloids, micelles, emulsions, phase-separated polymers, thin films and self-assembled monolayers all represent examples of the types of highly ordered structures which are obtained using these techniques.
This experimental result also was of crutial scientific importance because it provided a firm scientific ground for identification strongly polarized absorption bands in the spectra of molecular crystals with exciton multipletes.
Later, Tolpygo generalized his theory to describe homopolar crystals ( Si, Ge, diamond, etc . ), cryocrystals of noble gases, and molecular crystals by introducing long-range Coulomb interactions in their lattice dynamics.

Participants are hoping studies of fluid flows, heat propagation and molecular crystal growth in the absence of gravity can be applied to a variety of manufacturing processes on Earth as well as in space.
Another example is a molecular crystal : Each molecular unit has a preferred orientation due to interactions with the nearby molecules, but they have librational modes corresponding to small rotations about this preferred orientation.
While normally carbon dioxide forms molecular crystals, where individual molecules are bound by Van der Waals forces, in amorphous carbonia a covalently bound three-dimensional network of atoms is formed, in a structure analogous to silicon dioxide or germanium dioxide glass.
The other type of solids is weak molecular crystals ( e . g ., fluorocarbons, hydrocarbons, etc . ) where the molecules are held together essentially by physical forces ( e . g ., van der Waals and hydrogen bonds ).
It is an important property of typical molecular crystals with two or more symmetrically-equivalent molecules in the elementary cell, such as benzine and naphthalene, that their exciton absorption spectra consist of doublets ( or multiplets ) of bands strongly polarized along the crystal axes as was demonstrated by Antonina Prikhot'ko.