Papers by Keyword: Texture

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Authors: Dan Liu, Yong Ke Yan, He Ping Zhou
Abstract: <001> textured Pb(Mg1/3Nb2/3)O3-0.325PbTiO3 (PMN-32.5PT) ceramics were prepared by reactive templated grain growth (RTGG). Plate-liked {001}-SrTiO3 single crystal particles were used as template seeds. MgNb2O6, TiO2, PbO were mixed with SrTiO3 templates as a reactive matrix. SrTiO3 templates were oriented after tape-casting. The textured PMN–32.5PT ceramics were produced after heat treatment. In preparing textured PMN-32.5PT, RTGG was more efficient than TGG because of the chemical energy released in reaction. The final texture degree was very sensitive to the sintering history. An initial anneal step below the melting point of PbO resulted in better development of texture.
Authors: Wei Min Gan, Yuan Ding Huang, Yu Ling Xu, Michael Hofmann, Karl Ulrich Kainer, Nobert Hort
Abstract: A new Mg-RE (rare earth) alloy was previously developed by micro-alloying method (RE< 0.4 wt.%), which achieves a high ductility and good corrosion resistance. In-situ tensile test via neutron and synchrotron diffraction were performed to investigate first the deformation behaviour; and second the texture evolution which can be related to the deformation mechanism, and finally to understand why the as-cast Mg-RE alloys show such a high tensile ductility.Preliminary results showed that a dominated basal fibre texture was gradually developed with the increase of tensile strain. However, before the sample was broken a (10.0) fibre texture showed a similar intensity to that in (00.2), which means more activations of the non-basal slip planes during tensile deformation. This could also contribute to a relatively high elongation of this new Mg-RE alloy at room temperature. Further discussion will be showed together with the microstructures.
Authors: Jun Ling Liu
Abstract: The color, shape and texture are the basic intrinsic features of visual scene and important features for scene recognition and visual salient feature. The recognition of four targets of “bird”, “ball”, “butterfly” and “flower” under the color image, gray image, edge image and low-pass blurred image was completed in the paper through psychology experiment, and the experimental result showed that the speed to recognize the color image was quickest, it was a little slower to recognize the gray image with the same accuracy of the color image, the edge image had a great impact on the recognition of certain object, thus increasing the recognition time, the blurred image increased the time to recognize various objects while reduced the recognition accuracy. The cognitive research on the scene image’s visual feature is helpful to reveal the secrets of human information processing and explore the law for the formulation of human visual saliency.
Authors: Anthony D. Rollett
Authors: Atsuto Okamoto, H. Yashiki
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