Results 31 to 40 of about 415,174 (326)

Spiral Pitch Control in Cholesteric Liquid Crystal Layers with Hybrid Boundary Conditions

open access: yesCrystals, 2022
The optical spectra of the cholesteric liquid crystal (CLC) layers under conditions of hybrid anchoring show a short-wave shift under a pulsed electric field.
Serguei P. Palto   +3 more
doaj   +1 more source

Interferometric Study of the Stability of K2CoxNi(1−x)(SO4)2·6H2O (KCNSH) Mixed Crystal Faces Depending on the Composition and Flow Velocity of the Solution

open access: yesCrystals, 2020
The change in the surface morphology of the (001) and (110) faces of K2CoxNi(1−x)(SO4)2·6H2O (KCNSH) mixed crystal, depending on the supercooling solution, has been studied under various conditions by laser interferometry.
Vadim V. Grebenev   +6 more
doaj   +1 more source

An insight into the microstructures and composition of 2,700 m-depth deep-sea limpet shells

open access: yesFrontiers in Marine Science, 2022
Structural and physiochemical properties contribute to the biological adaptation of deep-sea animals to their harsh living environment but have hardly been investigated systematically.
Zhehan Ying   +16 more
doaj   +1 more source

Generalized crystallography [PDF]

open access: yes, 2002
X-ray crystal structure analysis can now be seen as a special kind of microscopy which is being extended to the recognition and examination of many kinds of ordered structure more general than crystals and which leads to their synthesis or construction ...
Mackay, Alan L.
core   +1 more source

Quantum crystallographic charge density of urea [PDF]

open access: yes, 2016
Standard X-ray crystallography methods use free-atom models to calculate mean unit cell charge densities. Real molecules, however, have shared charge that is not captured accurately using free-atom models.
Wall, Michael E.
core   +8 more sources

The Crystallography of Color Superconductivity [PDF]

open access: yes, 2002
We develop the Ginzburg-Landau approach to comparing different possible crystal structures for the crystalline color superconducting phase of QCD, the QCD incarnation of the Larkin-Ovchinnikov-Fulde-Ferrell phase.
A.G. Truscott   +57 more
core   +4 more sources

Precise local control of liquid crystal pretilt on polymer layers by focused ion beam nanopatterning

open access: yesBeilstein Journal of Nanotechnology, 2019
Background: The alignment of liquid crystals by surfaces is crucial for applications. It determines the director configuration in the bulk, its stability against defects and electro-optical switching scenarios. The conventional planar alignment of rubbed
Maxim V. Gorkunov   +4 more
doaj   +1 more source

Cosmic Crystallography with a Pullback [PDF]

open access: yes, 1999
We present a modified version of the cosmic crystallography method, especially useful for testing closed models of negative spatial curvature. The images of clusters of galaxies in simulated catalogs are ``pulled back'' to the fundamental domain before ...
Best   +7 more
core   +3 more sources

Fifteen years of the Protein Crystallography Station: the coming of age of macromolecular neutron crystallography

open access: yesIUCrJ, 2017
The Protein Crystallography Station (PCS), located at the Los Alamos Neutron Scattering Center (LANSCE), was the first macromolecular crystallography beamline to be built at a spallation neutron source.
Julian C.-H. Chen, Clifford J. Unkefer
doaj   +1 more source

Crystallography and Databases

open access: yesData Science Journal, 2017
Crystallographic databases have existed as electronic resources for over 50 years, and have provided comprehensive archives of crystal structures of inorganic, organic, metal–organic and biological macromolecular compounds of immense value to a wide range of structural sciences. They thus serve a variety of scientific disciplines, but are all driven by
Ian Bruno   +5 more
openaire   +5 more sources

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