Grain size determination of superconducting MgB2 powders from magnetization curve, image analysis and surface area measurementdoi:10.1088/0953-2048/27/6/065007Antonio Sergio SiriCristina BerniniEmilio BellingeriGennaro RomanoGianmarco BovoneMariateresa Buscaglia...
The methods discussed include comparison techniques employing standard charts or the Shepherd fracture grain size standards; measurement techniques based on determination of the number of grains per unit area (Jeffries method), the number of triple points per unit area, or the number of grains ...
The results of a preliminary investigation into the distribution of seed size of a multi-seeded sorghum mutant, as compared to the wild type from which it was developed are also reported, and are used as an example of the method's utility.关键词:...
摘要: Focuses on the grain size determination for parallel processing in the United States. Optimization of parallel programs; Application of grain packing on extended serial and concurrent programming language; Technique to develop a parallel-processor simulator....
Full size image The milling and appearance quality of YNSM The grain size of YNSM is between those of Yuexiangzhan (YXZ) and Xiangyaxiangzhan (XYXZ). The grain length is 9.28 mm, the grain width is 2.3 mm, and the LWR is 3.2–3.4; these values are different from those of the small-...
An image processing system based on ARM protocol is built on the basis of V4L2,and the grain boundary is extracted by the image processing system. Then an accurate determination of the average grain size of a metal is carried out. The measurement results show that this improved method has low...
Variation in the effective strength of the lithosphere allows for active plate tectonics and is permitted by different deformation mechanisms operating in the crust and upper mantle. The dominant mechanisms are debated, but geodynamic models often employ
Samples for grain size analysis were then collected from the cleaned surface to the bottom at 2 cm intervals, yielding a total of 200 samples.Preprocessing and determination of grain sizes of samples were performed in the Qinghai Province Key Laboratory of Physical Geography and Environmental ...
Full size image 2.4Grain size distribution determination Three types of GSDs (i.e. power-law, monodisperse and polydisperse GSDs) are considered and described in Table2. The power-law GSDs are produced from a fractal model mentioned in [67]: ...
Full size image Determination of sediment grain size Sample preparation and grain size measurements were performed at the Key Laboratory of Mongolian Plateau Environment & Global Change. Sample preparation included air drying, sieving for impurities, removal of organic matter and desalting19. The quarter...