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Showing 1 to 20 of 32 for “"Anisotropic Media"”.
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Anomalous diffusion in anisotropic media
… first consisting of crosslinked flat lamellae in anisotropic hydrogels and the second consisting of spherically bent lamellae in multilamellar vesicles. In the third system, a swollen PDMS network, obstructed diffusion was investigated in the fractal topology. <br> <br>Anisotropic Hydrogels: The …
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Displacement Potentials for Anisotropic Media
Made available in DSpace on 2014-12-10T17:25:25Z (GMT). No. of bitstreams: 1 6500782.pdf: 1199597 bytes, checksum: eb9ee16bfdf2591be6e395c84c0d3947 (MD5) Previous issue date: 1964
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Velocity analysis for laterally heterogeneous anisotropic media
Includes bibliographical references (pages 144-151).
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Atom-light interactions in ultracold anisotropic media
… studies on atom-light interactions in ultracold anisotropic media were conducted. Methods to trap ultracold neutral atoms in novel traps with widely tunable trap frequencies and anisotropies were investigated. In comparison to conventional magnetic traps, it was found that magnetic traps …
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Seismic reflection moveout for azimuthally anisotropic media
… waves in horizontally stratified azimuthally anisotropic media. Reflection moveout in common-midpoint (CMP) gathers is generally treated by an azimuthally-isotropic hyperbolic equation. Recently, special treatment for the reflection moveout in azimuthally anisotropic media has been introduced …
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Reflection coefficients and azimuthal AVO analysis in anisotropic media
Includes bibliographical references (pages 140-147).
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Modeling, imaging and waveform-inversion in attenuative anisotropic media
Seismic attenuation, which is often anisotropic, has a profound influence on wave propagation and seismic processing. In addition to application of attenuation coefficients in lithology and fluid discrimination, compensation for angle-dependent attenuation and velocity dispersion is critically …
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Arbitrarily Oriented Biaxially Anisotropic Media: Wave Behavior and Microstrip Antennas
… behavior of arbitrarily oriented biaxially anisotropic media. An overview of wave behavior in biaxially anisotropic (or simply biaxial) media is presented. The reflection and transmission behaviors of electromagnetic waves from half-space and two-layer isotropic-biaxial interfaces are …
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Elastic wave radiation from borehold seismic sources in anisotropic media
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.
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Efficient modeling and waveform inversion of multicomponent seismic data for anisotropic media
… isotropic with a vertical symmetry axis) media using multicomponent ocean-bottom data. First, I develop a graphics processing unit (GPU)-based MFD+FSG algorithm to efficiently model elastic wavefields in anisotropic media. The CUDA Aware MPI framework is used to handle communication across …
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Elastic wave propagation in anisotropic media : source theory, traveltime computations and migration
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.
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Borehole wave propagation in isotropic and anisotropic media : three-dimensional finite difference approach
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.
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DYADIC GREEN'S FUNCTIONS FOR LAYERED GENERAL ANISOTROPIC MEDIA AND THEIR APPLICATION TO RADIATION OF DIPOLE ANTENNAS
… functions (DGFs) for unbounded and layered anisotropic media, with no restriction imposed on the medium property, are derived. Utilizing the obtained DGFs, the radiation problems of a Hertzian dipole and a microstrip antenna in the presence of an anisotropic substrate are solved.</p> …
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Anisotropic media and the determination of subsurface velocity by the use of surface seismic reflection data
… with the determination of subsurface velocity in anisotropic media by the use of surface seismic reflection data are analyzed. Previous studies of anisotropy in exploration seismology required bore-hole data as well as surface data to detect the presence of velocity anisotropy. Three special types …
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On the boundary integral equation method for the solution of some problems for inhomogeneous media / Mohammad Ivan Azis.
… associated with inhomogeneous materials or media: a class of elliptical boundary value problems (BVPs), the boundary value problem of static linear elasticity, and the calculation of the solution of the initial-boundary value problem of non-linear heat conduction for anisotropic media.
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Effect of in situ stresses on the stress analysis in soils by the finite element method
… The soil was considered as a nonlinear elastic media having a hyperbolic stress strain relationship. Isotropic and cross anisotropic media were considered in the analysis. Also the effect of in situ stresses on the plastic analysis of a perfectly plastic media was investigated. Details of the …
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ΓΕΝΙΚΕΥΜΕΝΑ ΚΡΙΤΗΡΙΑ ΑΣΤΟΧΙΑΣ ΑΡΧΙΚΩΣ ΑΝΙΣΟΤΡΟΠΩΝ ΕΛΑΣΤΙΚΩΝ ΜΕΣΩΝ ΜΕ ΙΔΙΑΙΤΕΡΗ ΕΜΦΑΣΗ ΣΤΑ ΣΥΝΘΕΤΑ ΥΛΙΚΑ
THE "ELASTIC STRUCTURE" OF LINEARLY ELASTIC ANISOTROPIC MEDIA WAS STUDIED IN TERMS OF SPECTRAL ANALYSIS THEORY OF 4TH RANK SYMMETRIC TENSORS. BY MEANS OF THE SPECTRAL DECOMPOSITION OF THE TRANSVERSELY ISOTROPIC COMPLIANCE TENSOR, ITS EIGENVALUES AND EIGENTENSORS WERE EXPLICITY DEFINED. IT WAS SHOWN …
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On Enforcing Maximum Principles and Element-Wise Species Balance for Advective-Diffusive-Reactive Systems
… solutions for complex geometries and highly anisotropic media. We therefore develop a novel structure-preserving numerical methodology for advective-diffusive reactive systems that satisfies local and global species balance, comparison principles, maximum principles, and the non-negative …
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Wave Propagation Problems in Certain Elastic Anisotropic Half Spaces
… to solve certain wave propagation problems in anisotropic media. The solutions are expressed in terms of analytic functions which are determined from the boundary conditions in a straightforward manner. Two types of problems are considered. The first type concerns the two-dimensional case of an …
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