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Magnetic Field

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/9780691141725.003.0011
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter focuses on magnetoconvection, which refers to thermal convection of an electrically conducting fluid within a background magnetic field maintained by some external mechanism. It first ... More


Instrumentation and Data Preprocessing

Lauri Parkkonen

in MEG: An Introduction to Methods

Published in print:
2010
Published Online:
September 2010
ISBN:
9780195307238
eISBN:
9780199863990
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195307238.003.0002
Subject:
Neuroscience, Behavioral Neuroscience, Techniques

This chapter reviews the methods and technology required for magnetoencephalographic measurements. The key concepts discussed include sensor components, noise reduction methods, co-registration of ... More


The early-type magnetic stars

Leon Mestel

in Stellar Magnetism: Second Edition

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199641741
eISBN:
9780191738609
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199641741.003.0009
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

Chapters 4 and 5 discussed various aspects of the interaction between the magnetic field and the thermal-gravitational-rotational fields in different stellar domains. This chapter broadens the ... More


Critical-Current Data Analysis

Jack W. Ekin

in Experimental Techniques for Low-Temperature Measurements: Cryostat Design, Material Properties and Superconductor Critical-Current Testing

Published in print:
2006
Published Online:
January 2010
ISBN:
9780198570547
eISBN:
9780191717710
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570547.003.0010
Subject:
Physics, Condensed Matter Physics / Materials

This chapter begins with a discussion of the methods of defining critical current that are practical. It then looks at the notorious problem of current-transfer voltages and how to correct them; all ... More


Somatosensory and Motor Function

Ryusuke Kakigi and Nina Forss

in MEG: An Introduction to Methods

Published in print:
2010
Published Online:
September 2010
ISBN:
9780195307238
eISBN:
9780199863990
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195307238.003.0012
Subject:
Neuroscience, Behavioral Neuroscience, Techniques

In the twenty years since the averaged MEG values following somatosensory stimulation, i.e. the somatosensory evoked magnetic field (SEF), were first reported, many studies have been conducted and ... More


Fundamentals

Bernhard Blümich

in NMR Imaging of Materials

Published in print:
2003
Published Online:
January 2010
ISBN:
9780198526766
eISBN:
9780191709524
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198526766.003.0002
Subject:
Physics, Condensed Matter Physics / Materials

Nuclear magnetic resonance (NMR) exploits the interaction of nuclei with magnetic fields. A strong static field is applied to polarise the nuclear magnetic moments, time-dependent magnetic radio ... More


Temperature Measurement and Control

Jack W. Ekin

in Experimental Techniques for Low-Temperature Measurements: Cryostat Design, Material Properties and Superconductor Critical-Current Testing

Published in print:
2006
Published Online:
January 2010
ISBN:
9780198570547
eISBN:
9780191717710
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570547.003.0005
Subject:
Physics, Condensed Matter Physics / Materials

This chapter focuses on cryogenic thermometers. Section 5.1 gives an overview of thermometers and singles out several that will serve well in most measurement situations. It then looks at the ... More


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

Gary A. Glatzmaier

Published in print:
2013
Published Online:
October 2017
ISBN:
9780691141725
eISBN:
9781400848904
Item type:
book
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691141725.001.0001
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This book provides readers with the skills they need to write computer codes that simulate convection, internal gravity waves, and magnetic field generation in the interiors and atmospheres of ... More


Magnetism and convection

Leon Mestel

in Stellar Magnetism: Second Edition

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199641741
eISBN:
9780191738609
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199641741.003.0004
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

Our Sun is a veritable laboratory for the study of magnetohydrodynamics. It exhibits a wide variety of phenomena — sunspots, flares, prominences — in which a magnetic field is clearly the crucial ... More


Dynamo processes in stars

Leon Mestel

in Stellar Magnetism: Second Edition

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199641741
eISBN:
9780191738609
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199641741.003.0006
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

The term ‘dynamo action’ appears in the literature describing two related but distinct processes. When the velocity v of a conducting fluid is driven by the non-magnetic forces in the direction ... More


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