Basic principles of two-dimensional graphics

2008 ◽  
pp. 7-48
Keyword(s):  
Two Dimensional ◽  
Basic Principles

Simple model designed to generate new crystal structures derived from a mother phase; application to molecular compounds

2002 ◽  
Vol 58 (4) ◽  
pp. 662-672 ◽  
Author(s):  
Claire Gervais ◽  
Gérard Coquerel
Keyword(s):  
Crystal Structure ◽  
Simple Model ◽  
Three Dimensional ◽  
Second Step ◽  
Two Dimensional ◽  
Basic Principles ◽  
Space Groups ◽  
Step Procedure ◽  
Symmetry Operators ◽  
Molecular Compounds

The basic principles of a model predicting new lattices from a known crystal structure are described. The first of the two-step procedure consists of extracting one- or two-dimensional periodic fragments (PF) from the mother structure. In the second step, symmetry operators are added to the PFs in order to generate one or several new three-dimensional lattices consistent with the 230 space groups. Most of the examples are related to polymorphism, but relationships between racemic compounds and enantiomers, twinning and lamellar epitaxy phenomena are also exemplified.

scholarly journals Two-Dimensional Strain Imaging: Basic principles and Technical Consideration

2014 ◽  
Vol 46 (2) ◽  
pp. 126-130 ◽  
Author(s):  
Mustafa Kurt ◽  
Ibrahim Halil Tanboga ◽  
Enbiya Aksakal
Keyword(s):  
Strain Imaging ◽  
Two Dimensional ◽  
Basic Principles ◽  
Technical Consideration

Plasmonic Devices for Detection of Terahertz Radiation

2010 ◽  
Vol 5 (4) ◽  
pp. 140-146
Author(s):  
Vyacheslav V. Popov
Keyword(s):  
Frequency Band ◽  
Terahertz Radiation ◽  
Two Dimensional ◽  
Terahertz Frequency ◽  
Metal Contacts ◽  
Dimensional Electron ◽  
Basic Principles ◽  
Plasma Oscillations ◽  
Electric Potentials

Physics of plasma oscillations and basic principles of plasmonic detection of terahertz radiation in FET structures with two-dimensional electron channels are discussed. Plasmonic devices are practically attractive because they are extremely fast and electrically tunable through the entire terahertz frequency band by changing electric potentials at metal contacts of the device

DATAD: a Python-based X-ray diffraction simulation code for arbitrary texture and arbitrary deformation

2021 ◽  
Vol 54 (2) ◽  
pp. 686-696
Author(s):  
J. W. Huang ◽  
Y. Y. Zhang ◽  
S. C. Hu ◽  
Y. Cai ◽  
S. N. Luo
Keyword(s):  
Single Crystal ◽  
Applied Strain ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Simulation Code ◽  
Polycrystalline Specimen ◽  
Basic Principles ◽  
X Ray ◽  
Deformation State ◽  
Diffraction Patterns

DATAD, a Python-based X-ray diffraction simulation code, has been developed for simulating one- and two-dimensional diffraction patterns of a polycrystalline specimen with an arbitrary texture under an arbitrary deformation state and an arbitrary detection geometry. Pixelated planar and cylindrical detectors can be used. The basic principles and key components of the code are presented along with the usage of DATAD. As validation and application cases, X-ray diffraction patterns of single-crystal and polycrystalline specimens with or without texture, or applied strain, on a planar or cylindrical detector are simulated.

Two dimensional speckle tracking echocardiography: basic principles

Heart ◽  
2010 ◽  
Vol 96 (9) ◽  
pp. 716-722 ◽  
Author(s):  
H. Blessberger ◽  
T. Binder
Keyword(s):  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Two Dimensional ◽  
Basic Principles
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