Introduction: At 7T in the human brain reduced RF amplitude and increased spectral dispersion result in chemical shift dispersion (CSD) artifacts that can distort metabolite ratios. For 2D encoding within the plane of a slice, CSD artifacts can be eliminated by replacing in-plane gradient based slab selective refocusing with RF shimming based outer volume suppression. However, for 3D acquisitio...

The transverse magnetic resonance satellite frequency and intensity associated with a bound pair of half quantum vortices in a thin slab of 'He-A, rotating about the slab normal and subject to a magnetic field applied at an angle 0 with the slab normal, is recalculated in a variational approach. This approach takes properly into account the azimuthal symmetry of the spin wave function and there...

Shift multiplexing is a holographic recording method that uses a spherical reference wave. We extend the principle to a thin slab of holographic material that acts as a waveguide. Total internal reflection folds the reference spherical beam in one dimension. We demonstrate that the shift selectivity with the folded spherical beam is independent of the slab thickness but depends instead on the n...

We describe a promising thin-slab light-emitting diode ~LED! design, which uses a highly efficient coherent external scattering of trapped light by a two-dimensional ~2D! photonic crystal. The light generation region was an unpatterned heterostructure surrounded by the light extraction region, a thin film patterned as a 2D photonic crystal. A six-fold photoluminescence enhancement was observed ...

We present a new model, called the dual-microfacet, for those materials such as paper and plastic formed by a thin, transparent slab lying between two surfaces of spatially varying roughness. Light transmission through the slab is represented by a microfacet-based BTDF which tabulates the microfacet’s normal distribution (NDF) as a function of surface location. Though the material is bounded by...

One of the basic functionalities of photonic devices is the ability to manipulate the polarization state of light. Polarization components are usually implemented using the retardation effect in natural birefringent crystals and, thus, have a bulky design. Here, we have demonstrated the polarization manipulation of light by employing a thin subwavelength slab of metamaterial with an extremely a...

The analysis of magmatic distribution, basin formation, tectonic evolution and structural styles of different segments of the Andes shows that most of the Andes have experienced a stage of flat subduction. Evidence is presented here for a wide range of regions throughout the Andes, including the three present flat-slab segments (Pampean, Peruvian, Bucaramanga), three incipient flat-slab segment...

The derivation of a local mobility model for symmetrical ultra-thin DGSOI nMOSFETs is outlined. A local-field variant is found to reproduce the dependencies of the quantummechanical mobility on silicon slab thickness and normal field with a maximum error of 10%. The model can be used with the density-gradient approach.

A new scheme of data-driven segmentation is proposed, which is based on detection of object boundary, and volumetric pattern reconstruction as implicit function by using the detected object boundary and the radial basis functions (RBF). By using clinical X-ray CT data, applications in visualization of the pancreatic duct by MINIP of curved thin-slab and in liver segmentation are shown.