The effect of strain path changes on the microstructure/crystallographic texture characteristics was studied in a 22Cr-6Ni-3Mo duplex stainless steel subjected to several deformation regimes comprising forward and reverse torsion, performed at a temperature of 1000 °C using a strain rate of 1 s. A high-resolution EBSD technique, utilising an FEI Sirion FEG SEM in conjunction with a HKL Technolo...

In this study, we have successfully fabricated electrospun polystyrene (PS) nanofibers having a diameter of 326 ± 50 nm with a parallel grooved texture using a mixed solvent of tetrahydrofuran (THF) and N,N-dimethylformamide (DMF). We discovered that solvent system, solution concentration, and relative humidity were the three key factors to the formation of grooved texture and the diameter of n...

A pattern of 12,860 short (0.15 x 0.05 deg) texture lines contained an orientation texture-defined (OTD) rectangle of aspect ratio a/b (a was the rectangle's height and b was its width). All the lines within the rectangle had the same orientation and all the lines outside the rectangle had the same orientation. These two orientations were theta deg symmetrically clockwise and anticlockwise of t...

The effect of surface texture on friction reduction under fluid lubrication has been broadly acknowledged in the tribology community. However, lack understanding underlying mechanisms remains a challenge for advancement textured enhanced lubrication. Numerous models have proposed, but they are almost all based hydrodynamic alone and proven complex, system limited unreflective beneficial seconda...

The Bidirectional Texture Function (BTF) is the recent most advanced representation of visual properties of surface materials. It specifies their altering appearance due to varying illumination and viewing conditions. Corresponding huge BTF measurements require a mathematical representation allowing simultaneously extremal compression as well as high visual fidelity. We present a novel Markovia...

A Rietveld method is described which extracts information on crystal structure, texture and microstructure directly from two-dimensional synchrotron diffraction images. This is advantageous over conventional texture analysis that relies on individual diffraction peaks, particularly for low-symmetry materials with many overlapping peaks and images with a poor peak-to-background ratio. The method...

â  natural disasters are known as one the most important factors in demolition human settlement. so study of impacts of natural disasters one human settlements specially cities are an important for urban planners iran had been faced with natural disasters specific earth quake because of its geographical position (its located on world earth quake belt). some earth quakes cause many human, financ...

Texture compression is recently one of the most important topics of 3D scene rendering because it allows visualization of more complicated high-resolution scenes. As standard image compression methods are not applicable to textures, an overview of specific techniques that are currently used in real 3D accelerators is presented. Because their major weakness is eventual image quality degradation,...

In this paper, a new texture classification method is provided for dividing texture images into three classes: periodic, directional, and random. The method is based on the fact that for a directional texture image, the magnitudes of its Fourier spectrum will concentrate on a certain direction; for periodic, on several directions; and for random, spread out over all directions. To use this fact...