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However, it is difficult to get satisfied regeneration sand using the traditional mechanical and pneumatic regeneration because that the resin coating on the surface of alkaline phenol formaldehyde resin bonded sand has a certain toughness, and there is a large number of used sand abandoned, resulting in environmental pollution and waste of natural resources, which may restrict the promotion and application of the alkaline phenol formaldehyde resin bonded sand process.
It can be seen from Table 2, the shape factor of the sand is not significantly affected by a variety of regeneration methods and the sand grain shape is not subjected to baking and mechanical regeneration.

From the XRD results, it was concluded that the presence of mineralizer in the reaction medium had an effect on the interplanar distance, grain size as well as strain and crystalline quality of the as-synthesized materials.
It clearly depicts that large numbers of one dimensional (1-D) rods distributed homogeneously and their ends typically look the hexagonal cross section.

All diffraction peaks can be indexed as the hexagonal structure of magnesium hydroxide (JCPDS .le number 7-239).
The significant broadened peaks indicate that the magnesium hydroxide particle has very small grain size．And there are not any additional peaks showing that the magnesium hydroxide sample has high purity.

In addition, XACML is able to adapt to various application environments, supports wide data types and rule combined algorithm, and it also can be used to describe all kinds of complex and fine-grained access control security requirements.
DecisionResult=false; for(i=0:inumber of rules, namely it equals as: E.

If these tasks contain only a simulation activity, then these will bring a lot of operational inconvenience, so each simulation type should be divided into a series of fine-grained tasks, which constitute sub-process as part-level processes .
Parameter is the initial parameters and its' value, different Components have different number and type of parameters.

Then adding PVA solution , AgNO3 and H2C2O4 successively in distilled water , the Ag2C2O4 dispersion of white precipitation can be obtained .Through adjusting the dosage of PVA aqueous solution in so far as 3ml-8ml, the white Ag2C2O4 precipitation dispersion can be got numbers A to F in turn .
And the grain boundaries could be observed obviously in the interior of the lamella particle.

is the ratio between straw and grain.
The total number of workers and staff in the plant was 153.

The additions of Mn and Cu into Ti-rich TiAl alloy increase the free electron densities in the bulk and the grain boundary simultaneously[9].
The Nb ratio curve is higher than the Ti ratio curve, this may be due to the increase in the number of d electrons of the Ti and Nb elements, as it is known that Ti and Nb atoms have 2 and 4 electrons in the 3d and 4d orbital, respectively.

By pressure die-casting, it is easy to generate grain coarsening of casting structure and uneven distribution, [5] so that it is difficult to ensure the requirements of mechanical properties.
The basic parameters of the simulation settings are as follows: Temperature: 300 degrees, Speed: 1mm/s, Friction factor: 0.3, Grid number: 10,000, Steps: 0.2 mm (the minimum grid is 0.6 mm steps is a minimum of 1/3), Total steps: 115 (when the convex mould pushes down about 23mm, simulating stops).

In the case of fine-grain stoneware produced from powder of comparatively narrow particle size distribution, the craters are smaller and more uniform.
In fact the scanning width can be increased twice so that only half the number of scanners is required.