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SYSTEMATIC CRYSTAL CHEMISTRY

Sander Van Smaalen

in Incommensurate Crystallography

Published in print:
2007
Published Online:
January 2008
ISBN:
9780198570820
eISBN:
9780191718762
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570820.003.0011
Subject:
Physics, Crystallography

This chapter gives an overview of compounds with incommensurate crystal structures. Superspace is an excellent tool for crystal chemical considerations, as it is demonstrated for selected classes of ... More


Microstructural data from powder patterns

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/9780198515944.003.0009
Subject:
Physics, Condensed Matter Physics / Materials

This chapter describes how diffraction peaks can be broadened, and sometimes their intensities altered, by microstructural effects. Much of the theory was developed for X-rays, but is also applicable ... More


CONTINUUM RADIATION

Takashi Fujimoto

in Plasma Spectroscopy

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198530282
eISBN:
9780191713149
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198530282.003.0006
Subject:
Physics, Nuclear and Plasma Physics

The intensity distribution of the recombination continuum continues smoothly across the ionization limit to the series lines, the upper levels of which are in LTE. Thus, a Boltzmann plot of the ... More


MODULATED CRYSTALS IN SUPERSPACE

Sander Van Smaalen

in Incommensurate Crystallography

Published in print:
2007
Published Online:
January 2008
ISBN:
9780198570820
eISBN:
9780191718762
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570820.003.0002
Subject:
Physics, Crystallography

This chapter introduces the superspace theory for the description of the crystal structures of incommensurately modulated crystals. Two alternative constructions of superspace are presented. In ... More


INCOMMENSURATE COMPOSITE CRYSTALS

Sander Van Smaalen

in Incommensurate Crystallography

Published in print:
2007
Published Online:
January 2008
ISBN:
9780198570820
eISBN:
9780191718762
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570820.003.0004
Subject:
Physics, Crystallography

This chapter introduces the superspace description of the crystal structures of incommensurate composite crystals, and the characterization of their symmetry by superspace groups. The treatment ... More


Time Series Plots

David P. Feldman

in Chaos and Fractals: An Elementary Introduction

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199566433
eISBN:
9780191774966
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199566433.003.0005
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter describes a way to visualise and think about the orbits of a function by presenting examples of time series plots. The first example is a square root function in which the orbit is ... More


Random and systematic errors

Simon Parsons and William Clegg

in Crystal Structure Analysis: Principles and Practice

Published in print:
2009
Published Online:
September 2009
ISBN:
9780199219469
eISBN:
9780191722516
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199219469.003.0016
Subject:
Physics, Crystallography

This chapter outlines some basic statistical methods and shows their application in crystallography, particularly in analysing the results. Concepts include: random and systematic errors, precision ... More


Extreme Value Statistics

Ray Huffaker, Marco Bittelli, and Rodolfo Rosa

in Nonlinear Time Series Analysis with R

Published in print:
2017
Published Online:
February 2018
ISBN:
9780198782933
eISBN:
9780191826153
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198782933.003.0011
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This Capstone chapter illustrates how concepts in the book come together to diagnose real-world dynamics from observed time series data. In particular, we apply NLTS to diagnose multi-strain ... More


Electronic Absorption Spectroscopy of Molecular Iodine

Robert N. Compton and Michael A. Duncan

in Laser Experiments for Chemistry and Physics

Published in print:
2015
Published Online:
December 2015
ISBN:
9780198742975
eISBN:
9780191816932
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198742975.003.0017
Subject:
Physics, Atomic, Laser, and Optical Physics

Electronic absorption spectroscopy of molecular iodine is performed in essentially every physical chemistry laboratory in the world using a conventional UV/VIS spectrometer. In this experiment a ... More


Global network invariants

Ernesto Estrada

in The Structure of Complex Networks: Theory and Applications

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199591756
eISBN:
9780191774959
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199591756.003.0008
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter analyses several global structural invariants for networks. The discussions cover degree-based global invariants, such as degree centralisation and variance; graph irregularity and ... More


Laser frequency stabilization and control systems

Warren Nagourney

in Quantum Electronics for Atomic Physics and Telecommunication: Second Edition

Published in print:
2014
Published Online:
June 2014
ISBN:
9780199665488
eISBN:
9780191779442
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199665488.003.0012
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter discusses the techniques of frequency stabilization using negative feedback and a stable frequency reference, which is usually a passive optical cavity. It is assumed that the frequency ... More


Statistical description and structural correlations

Walter Steurer and Julia Dshemuchadse

in Intermetallics: Structures, Properties, and Statistics

Published in print:
2016
Published Online:
September 2016
ISBN:
9780198714552
eISBN:
9780191782848
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198714552.003.0005
Subject:
Physics, Crystallography

In this chapter, a statistical analysis of all structures and structure types of the intermetallic compounds contained in the reduced database “Pearson’s Crystal Data” (PCD) is discussed. The goal is ... More


Quantities Directly Measurable by Scattering

Eaton E. Lattman, Thomas D. Grant, and Edward H. Snell

in Biological Small Angle Scattering: Theory and Practice

Published in print:
2018
Published Online:
September 2018
ISBN:
9780199670871
eISBN:
9780191749575
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199670871.003.0003
Subject:
Physics, Soft Matter / Biological Physics

In this chapter we note that solution scattering data can be divided into four regions. At zero scattering angle, the scattering provides information on molecular weight of the particle in solution. ... More


Examples of Data Collection and Processing

Eaton E. Lattman, Thomas D. Grant, and Edward H. Snell

in Biological Small Angle Scattering: Theory and Practice

Published in print:
2018
Published Online:
September 2018
ISBN:
9780199670871
eISBN:
9780191749575
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199670871.003.0007
Subject:
Physics, Soft Matter / Biological Physics

This chapter provides a detailed example of SAXS data analysis from a well behaving system. After collecting the SAXS data, several data analysis procedures are illustrated to ensure the data were of ... More


Capstone: Application of NLTS to Real-World Data

Ray Huffaker, Marco Bittelli, and Rodolfo Rosa

in Nonlinear Time Series Analysis with R

Published in print:
2017
Published Online:
February 2018
ISBN:
9780198782933
eISBN:
9780191826153
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198782933.003.0010
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter investigates the use of Extreme Value Statistics (EVS) to probabilistically model extreme events separated as unstructured noise in signal processing. We apply a version of EVS that ... More


Optical Spectroscopy

Robert N. Compton and Michael A. Duncan

in Laser Experiments for Chemistry and Physics

Published in print:
2015
Published Online:
December 2015
ISBN:
9780198742975
eISBN:
9780191816932
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198742975.003.0014
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter provides an introduction to atomic and molecular electronic and rovibrational spectroscopy. It contains many of the elements one might find in an introduction course in atomic and ... More


Raman Spectroscopy Applied to Molecular Conformational Analysis

Robert N. Compton and Michael A. Duncan

in Laser Experiments for Chemistry and Physics

Published in print:
2015
Published Online:
December 2015
ISBN:
9780198742975
eISBN:
9780191816932
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198742975.003.0029
Subject:
Physics, Atomic, Laser, and Optical Physics

Conformational isomers represent one form of stereoisomer in which the two structures can be interconverted by simple rotations about a single bond. Such conformational isomers are called rotomers ... More


RSW Modons and their Surprising Properties: RSW Turbulence

Vladimir Zeitlin

in Geophysical Fluid Dynamics: Understanding (almost) everything with rotating shallow water models

Published in print:
2018
Published Online:
April 2018
ISBN:
9780198804338
eISBN:
9780191842627
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198804338.003.0009
Subject:
Physics, Geophysics, Atmospheric and Environmental Physics

By using quasi-geostrophic modons constructed in Chapter 6 as initial conditions, rotating-shallow-water modons are obtained through the process of ageostrophic adjustment, both in one- and in ... More


Temperature dependence of threshold current

Peter Blood

in Quantum Confined Laser Devices: Optical gain and recombination in semiconductors

Published in print:
2015
Published Online:
November 2015
ISBN:
9780199644513
eISBN:
9780191810329
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199644513.003.0016
Subject:
Physics, Atomic, Laser, and Optical Physics

The variation of the threshold current density with temperature is an important characteristic of a diode laser and considerable effort is devoted to designing devices that have a ... More


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