نتایج جستجو برای: surface distortion
تعداد نتایج: 674652 فیلتر نتایج به سال:
We compared cortical folding patterns between patients with schizophrenia and demographically-matched healthy controls in prefrontal and temporal regions of interest. Using the Freesurfer (http://surfer.nmr.mgh.harvard.edu) cortical surface-based reconstruction methodology, we indirectly ascertained cortical displacement and convolution, together, by measuring the degree of metric distortion re...
This communication reports strongly anisotropic wetting behavior on one-dimensional nanopatterned surfaces. Contact angles, degree of anisotropy, and droplet distortion are measured on micro- and nanopatterned surfaces fabricated with interference lithography. Both the degree of anisotropy and the droplet distortion are extremely high as compared with previous reports because of the well-define...
A reversible switching of the easy axis of magnetization for Ni on Cu(001) from in plane to out of plane is found by changing the partial pressure of hydrogen in the gas phase around the sample, allowing even for oscillations of the magnetization direction. A quantitative low-energy electron diffraction study of the diffracted intensity versus electron energy [I(E)] shows that the hydrogen-indu...
This paper describes a fast method of correcting for optical distortion in head-mounted displays (HMDs). Since the distorted display surface in an HMD is not rectilinear, the shape and location of the graphics window used with the display must be chosen carefully, and some corrections made to the predistortion model. A distortion correction might be performed with optics that reverse the distor...
In this paper, we present a new method to compute the distortion vector field from two images. The aim of this study is to characterize the distortion between to images. Several methods are based on optical flow techniques. However they are sensitive to image noise and grey-level variations between the two images. Our method is based on distance transforms. Images must be passed over twice befo...
Ocean maps are rarely in the scope of current studies on minimum-distortion map projec-tions. This study aims to create an uninterrupted projection display planet Earth as Blue Planet: aspect is rotated into middle water surface; favourable distortions optimized numerically across World Ocean. The paper starts with a short overview existing similar projections. In next pages, reader may find de...
BaFe2As2 exhibits properties that are characteristic of the parent compounds of the newly discovered iron (Fe)-based high-T(C) superconductors. By combining real-space imaging of scanning tunneling microscopy and spectroscopy (STM+STS) with momentum-space quantitative low-energy electron diffraction (LEED), we have identified the surface plane of cleaved BaFe2As2 crystals as the As terminated F...
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