نتایج جستجو برای: spherical involute surface
تعداد نتایج: 675624 فیلتر نتایج به سال:
Introduction: To date, gold nanoparticles (GNPs) have been demonstrated to have great potential as contrast agent for CT imaging and therapeutics. This study was designed to evaluate any effect on X-ray attenuation that might result from using GNPs with a variety of size, surface chemistries and shapes. Materials and Methods: Spherical GNPs and gold nanorod...
Generally, in the laser measurement of gears, beam passes through center gear, and displacement sensor reads spatial distance from gear involute tooth surface to sensor. However, this method, angle between normal vector measured is too large, which affects accuracy stability data. This paper proposes an offset method. The by a certain form larger incident with surface, can effectively address p...
Although there are numerous publications on amygdala volumetry, so far there has not been many studies on modeling local amygdala surface shape variations in a rigorous framework. This paper present a systematic framework for modeling local amygdala shape. Using a novel surface flattening technique, we obtain a smooth mapping from the amygdala surface to a sphere. Then taking the spherical coor...
This letter presents a method for reducing antenna-excited surface waves in mobile devices. Surface are canceled either by actively injecting compensating opposite phase, or passively creating reactive conditions from which scattered, secondary cancel the primary waves. We use spherical wave expansion to calculate amplitudes and phases of canceling show also how loading near antenna can launch ...
In this work, we present a novel cortical correspondence method with application to the macaque brain. The correspondence method is based on sulcal curve constraints on a spherical deformable registration using spherical harmonics to parameterize the spherical deformation. Starting from structural MR images, we first apply existing preprocessing steps: brain tissue segmentation using the Automa...
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