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Incommensurate Crystallography

Sander van Smaalen

Published in print:
2007
Published Online:
January 2008
ISBN:
9780198570820
eISBN:
9780191718762
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570820.001.0001
Subject:
Physics, Crystallography: Physics

Aperiodic crystals are crystalline materials with atomic structures that lack translational symmetry. This book gives a comprehensive account of the superspace theory for the description of the ... More


Spatial Discretizations

Gary A. Glatzmaier

in Introduction to Modeling Convection in Planets and Stars: Magnetic Field, Density Stratification, Rotation

Published in print:
2013
Published Online:
October 2017
ISBN:
9780691141725
eISBN:
9781400848904
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691141725.003.0009
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter considers two ways of employing a spatial resolution that varies with position within a finite-difference method: using a nonuniform grid and mapping to a new coordinate variable. It ... More


Measures of EEG Dynamic Properties

Paul L. Nunez and Ramesh Srinivasan

in Electric Fields of the Brain: The neurophysics of EEG

Published in print:
2006
Published Online:
May 2009
ISBN:
9780195050387
eISBN:
9780199865673
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195050387.003.0009
Subject:
Neuroscience, Neuroendocrine and Autonomic, Techniques

This chapter suggests a general working framework for experimental study of large-scale dynamics of EEG, including interpretation of data recorded at different spatial and temporal scales. It views ... More


The reconstruction of momentum density

N. K. Hansen

in X-Ray Compton Scattering

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198501688
eISBN:
9780191718045
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198501688.003.0006
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter describes how the three-dimensional electron density distribution can be reconstructed from measured one-dimensional projections (the directional Compton profiles) by the Fourier-Bessel ... More


Ab initio structure solution

Erich H. Kisi and Christopher J. Howard

in Applications of Neutron Powder Diffraction

Published in print:
2008
Published Online:
January 2009
ISBN:
9780198515944
eISBN:
9780191705663
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198515944.003.0006
Subject:
Physics, Condensed Matter Physics / Materials

This chapter describes general approaches to the ab initio solution of crystal structures from X-ray or neutron powder diffraction data. The steps in the process, unit cell determination and ... More


Non-linear Dynamics of Involuntary Head Movements

Jefim Goldberg

in The Head-Neck Sensory Motor System

Published in print:
1992
Published Online:
March 2012
ISBN:
9780195068207
eISBN:
9780199847198
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195068207.003.0061
Subject:
Neuroscience, Sensory and Motor Systems

This chapter discusses the sensory-motor origins of involuntary head movements. These movements can be regarded as a continuous sequence of deviations and succeeding corrections effected by ... More


The electrostatics of conductors

J. Pierrus

in Solved Problems in Classical Electromagnetism: Analytical and Numerical Solutions with Comments

Published in print:
2018
Published Online:
October 2018
ISBN:
9780198821915
eISBN:
9780191861055
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198821915.003.0003
Subject:
Physics, Condensed Matter Physics / Materials

This chapter begins by proving some important properties of (i) conductors in electrostatic equilibrium, and (ii) harmonic functions. These results underpin most of the remaining questions of Chapter ... More


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