Anisotropy
Seismic anisotropy is the variation of seismic wavespeed with direction. Seismic anisotropy is an indicator of long range order ... Look up anisotropy or anisotropic in Wiktionary, the free dictionary. Anisotropy (/ˌænaɪˈsɒtrəpi, ˌænɪ-/) is the structural ... "Overview of Anisotropy" DoITPoMS Teaching and Learning Package: "Introduction to Anisotropy" "Gauge, and knitted fabric ... Physicists use the term anisotropy to describe direction-dependent properties of materials. Magnetic anisotropy, for example, ...
Magnetocrystalline anisotropy
The anisotropy of such crystals is called uniaxial anisotropy. If the z axis is taken to be the main symmetry axis of the ... while that for uniaxial anisotropy is second order. The magnetocrystalline anisotropy parameters have a strong dependence on ... The magnetocrystalline anisotropy energy is generally represented as an expansion in powers of the direction cosines of the ... In general the anisotropy parameters for cubic ferromagnets are higher than those for uniaxial ferromagnets. This is consistent ...
Magnetic anisotropy
Magnetoelastic anisotropy Tension may alter magnetic behaviour, leading to magnetic anisotropy. Exchange anisotropy Occurs when ... A magnetic particle with cubic anisotropy has three or four easy axes, depending on the anisotropy parameters. The energy has ... the anisotropy is uniaxial. A magnetic particle with triaxial anisotropy still has a single easy axis, but it also has a hard ... The magnetic anisotropy of a benzene ring (A), alkene (B), carbonyl (C), alkyne (D), and a more complex molecule (E) are shown ...
Dipole anisotropy
... is a form of anisotropy and the progressive difference in the frequency of radiation from opposite directions ...
Fluorescence anisotropy
Steady-state fluorescence anisotropy only give an "average" anisotropy. Much more information can be obtained with time- ... residual anisotropy and rotational correlation time can all be determined from fitting the anisotropy decay. Typically a ... Where r is the observed anisotropy, r0 is the intrinsic anisotropy of the molecule, τ {\displaystyle \tau } is the fluorescence ... The anisotropy (r) of a light source is defined as the ratio of the polarized component to the total intensity ( I T {\ ...
Seismic anisotropy
... prestack depth anisotropy migration, and fracture characterization based on anisotropy velocity models. The anisotropy ... Anisotropy differs from the property called heterogeneity in that anisotropy is the variation in values with direction at a ... Seismic anisotropy can be defined as the dependence of seismic velocity on direction or upon angle. General anisotropy is ... In sedimentary rocks, anisotropy develops during and after deposition. For anisotropy to develop, there needs to be some degree ...
Anisotropy energy
The word anisotropy means "directionally dependent", hence the definition. The most common form of anisotropic energy is ... In order to study magnetocrystalline anisotropy, energy (usually in the form of an electric current) is applied to the domain, ... Magnetic anisotropy Brune, Harald (November 2007). "Nanomagnetism: Probing magnetism at the nanoscale". Nature Nanotechnology. ... Moskowitz, Bruce M. "Magnetic Anisotropy". Retrieved 5 December 2013. (Articles needing additional references from October 2015 ...
Fractional anisotropy
... (FA) is a scalar value between zero and one that describes the degree of anisotropy of a diffusion ... called Generalized Fractional Anisotropy. GFA computations use samples of the ODF to evaluate the anisotropy in diffusion. They ... have been used to define newer and richer estimates of the anisotropy, ...
Cosmic Anisotropy Telescope
... (CAT) online The first detection of small-scale structure in the cosmic microwave background Press ... The Cosmic Anisotropy Telescope (CAT) was a three-element interferometer for cosmic microwave background radiation (CMB/R) ...
Mobile Anisotropy Telescope
MAT was an experiment to measure the anisotropy of the Cosmic microwave background at angular scales of 50 < l < 400. Cosmic ...
Wilkinson Microwave Anisotropy Probe
The Wilkinson Microwave Anisotropy Probe (WMAP), originally known as the Microwave Anisotropy Probe (MAP and Explorer 80), was ... The anisotropies then were used to measure the universe's geometry, content, and evolution; and to test the Big Bang model, and ... the Soviet RELIKT-1 that reported the upper-limit measurements of CMB anisotropies, and (ii) the U.S. COBE satellite that first ...
Cosmic Anisotropy Polarization Mapper
CAPMAP is an experiment at Princeton University to measure the polarization of the Cosmic microwave background. Cosmic microwave background experiments Observational cosmology Barkats, D.; Bischoff, C.; Farese, P.; Gaier, T.; Gundersen, J. O.; Hedman, M. M.; Hyatt, L.; McMahon, J. J.; Samtleben, D.; Staggs, S. T.; Stefanescu, E. (July 2005). "CMB Polarimetry using Correlation Receivers with the PIQUE and CAPMAP Experiments". The Astrophysical Journal Supplement Series. 159 (1): 1-26. arXiv:astro-ph/0503329. doi:10.1086/430208. ISSN 0067-0049. S2CID 18785000. CAPMAP Homepage v t e (Coordinates on Wikidata, Articles with infoboxes completely from Wikidata, Cosmic microwave background experiments, All stub articles, Physical cosmology stubs ...
Residual chemical shift anisotropy
... (RCSA) is the difference between the chemical shift anisotropy (CSA) of aligned and non- ... Lipsitz, Rebecca S.; Tjandra, Nico (2003). "15N chemical shift anisotropy in protein structure refinement and comparison with ... and Carbonyl Chemical Shielding Anisotropies in a Protein Dissolved in a Dilute Liquid Crystalline Phase". Journal of the ... "Determination of Relative Configuration from Residual Chemical Shift Anisotropy". Journal of the American Chemical Society. 138 ...
Millimeter Anisotropy eXperiment IMaging Array
The Millimeter Anisotropy eXperiment IMaging Array (MAXIMA) experiment was a balloon-borne experiment funded by the United ... Wikimedia Commons has media related to Millimeter Anisotropy eXperiment IMaging Array. Cosmic microwave background experiments ...
Neodymium magnet
"Magnetic Anisotropy". Hitchhiker's Guide to Magnetism. Retrieved 2 March 2014. Boysen, Earl; Muir, Nancy C. (2011). ... most important is that the tetragonal Nd2Fe14B crystal structure has exceptionally high uniaxial magnetocrystalline anisotropy ...
Kenneth G. McCracken
"Cosmic-Ray Anisotropy". NASA. Retrieved 24 May 2012. (Use dmy dates from April 2022, Articles with hCards, 1933 births, Living ...
Texture (chemistry)
ISBN 978-1-4200-6365-3. U. F. Kocks, C. N. Tomé, H. -R. Wenk and H. Mecking (2000). Texture and Anisotropy: Preferred ... H.-R. Wenk & P. Van Houtte (2004). "Texture and anisotropy". Rep. Prog. Phys. 67 (8): 1367-1428. Bibcode:2004RPPh...67.1367W. ... in which the crystalline anisotropy is so great that a good-quality filament will be a distorted single crystal with ... "Texture and Anisotropy - Preferred Orientations in Polycrystals and Their Effect on Materials Properties" (2000) Cambridge ...
Exchange bias
Exchange anisotropy has long been poorly understood due to the difficulty of studying the dynamics of domain walls in thin ... Exchange anisotropy was discovered by Meiklejohn and Bean of General Electric in 1956. The first commercial device to employ ... doi:10.1016/S0304-8853(98)00266-2. Berkowitz, A.E.; Takano, Kentaro (1999). "Exchange anisotropy - a review" (PDF). Journal of ... Exchange bias or exchange anisotropy occurs in bilayers (or multilayers) of magnetic materials where the hard magnetization ...
List of cosmic microwave background experiments
"Balloon-Borne Anisotropy Measurement (BAM)". Brown University. 2002. Retrieved 22 July 2015. Polenta, G.; P. A. R., Ade; J., ... Some notable experiments in the list are COBE, which first detected the temperature anisotropies of the CMB, and showed that it ... There have been a variety of experiments to measure the CMB anisotropies and polarization since its first observation in 1964 ... This list is a compilation of experiments measuring the cosmic microwave background (CMB) radiation anisotropies and ...
Hans-Rudolf Wenk
226, 507-519 [doi:10.1016/j.epsl.2004.07.033] Romanowicz, B., Wenk, H.-R. (2017). Anisotropy in the deep Earth. PEPI (Review ... 45, 3283-3296 Kocks, U.F., Tome, C., Wenk, H.-R. (2000). Texture and Anisotropy. Preferred Orientations in Polycrystals and ... Tectonophysics 321, 253-277 Wenk, H.-R., Voltolini, M., Kern, H., Popp, H., Mazurek, M. (2008). Anisotropy of Mont Terri ... His work quantifying preferred orientation and correlating crystal alignment in shales to seismic anisotropy is used in seismic ...
Interindividual differences in perception
Chaudhuri, Avi (1991). "Metastable motion anisotropy". Visual Neuroscience. 7 (5): 397-407. doi:10.1017/s0952523800009706. PMID ...
Isotropy
Exceptions, or inequalities, are frequently indicated by the prefix a- or an-, hence anisotropy. Anisotropy is also used to ... "Anisotropy and Isotropy". Archived from the original on 2012-05-31. Retrieved 2012-05-26. Landman L. "The Epidermal ... An example of anisotropy is in flows with a background density as gravity works in only one direction. The apparent surface ...
Innermost inner core
"Joint inversion of normal mode and body wave data for inner core anisotropy 1. Laterally homogeneous anisotropy". Journal of ... It has also been theorized that the anisotropy observed represents an unknown phase change in iron. Understanding the ... Trampert, Jeannot; Beghein, Caroline (2003-01-24). "Robust Normal Mode Constraints on Inner-Core Anisotropy from Model Space ... and claims the data are best described by hemispheric anisotropy. Ishii, Miaki; Tromp, Jeroen; Dziewoński, Adam M.; Ekström, ...
Autowave reverberator
Anisotropy induced drift. Boundary induced drift (see also). Interaction of spirals. High frequency induced drift. Note that ...
Acoustoelastic effect
"Anisotropy and Isotropy". Archived from the original on 2012-05-31. Retrieved 2013-12-07. Norris, A. N. (1997). "Finite- ...
List of important publications in geology
Defined a version of elastic anisotropy using transversely isotropic media that could be analyzed through the use of Thomsen ... Thomsen, Leon (October 1986). "Weak elastic anisotropy". Geophysics. 51 (10): 1954-1966. Bibcode:1986Geop...51.1954T. doi: ...
Abir Al-Tabbaa
A, Al Tabbaa (16 September 1984). "Anisotropy of clay". publications.eng.cam.ac.uk. Archived from the original on 26 September ... Her Master's research considered the anisotropy of clay. She obtained her PhD in 1987 with a dissertation entitled Permeability ...
Collimated transmission theory
These optical properties are described by the absorption coefficient μa, scattering coefficient μs, and anisotropy factor g. In ... scattering anisotropy = ; μt = extinction coefficient = μa + μs Where Na is the number of absorbers in a medium, 𝜎a is the ...
Transverse isotropy
"Weak Elastic Anisotropy". In geophysics the anisotropy in elastic properties is usually weak, in which case δ , γ , ϵ ≪ 1 {\ ... These expressions are also useful in some contexts where the anisotropy is not weak. Hooke's law Linear elasticity Orthotropic ... In geophysics, vertically transverse isotropy (VTI) is also known as radial anisotropy. This type of material exhibits ... Backus, G. E. (1962), Long-Wave Elastic Anisotropy Produced by Horizontal Layering, J. Geophys. Res., 67(11), 4427-4440 Ikelle ...
Janardan Ganpatrao Negi
His studies have been detailed in a book, Anisotropy in Geoelectromagnetism, as chapters in books by others, and as several ... J. G. Negi; P. D. Saraf (1989). Anisotropy in geoelectromagnetism. Elsevier. ISBN 978-0-444-87495-5. S. Böhme; U. Esser; H. ... J. G. Negi; P. D. Saraf (1989). Anisotropy in geoelectromagnetism. Elsevier. ISBN 978-0-444-87495-5. S. Böhme; U. Esser; H. ...