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Anchor rope fracture number is more and fracture rate is as high as 17%.
No. 5 coal roof for the lithology of sandstone and mudstone powder and fine grain sandstone.

Currently, CFRP has been used for aircraft, a small number of sports cars, and industrial applications such as wind generator blades, but in the future, it is expected to be used for an even wider variety of products [1].
The mean grain size of the PCD is 5 μm.

Murch), GRAIN  BOUNDARIES AND INTERFACES: STRUCTURE, THERMODYNAMICS AND DIFFUSION PROPERTIES (by V.V. 
The large number of presented papers emphasises the considerable academic and industrial interest in the  conference theme. 

A number of surface technologies have been developed for improving properties of aluminum and its alloys including anodic oxidation, PVD, and micro-arc oxidation (MAO).
As it will be shown in the more microcosmic observation, a cluster is composed of smaller grains 50-80 nm in size.

Table1 Performance Indicators of Coating Base Paper fixed amount  （g/m2） 60°glossiness (%) opacity (%) whiteness   (%) K&N (%) Cobb value（g/m3） 220 49 94.8 93.6 5.29 3.6 Pigment : nano-silica :the performance of nano-silica is showed in table 2: Table 2 The characteristics of nano-silica which exclusive used in glossy photo paper performance norm BET /m2/g 200 mean grain size /nm 100 compaction density /g/l 50 volume concentration /g/l 30 pH 3.7-4.7 Plastic pigment HP1055：hollow sphere, ROHM HAAS HP 1055, solid content is 26%, wet density is 1.08 g／mL, dry density is 0.486g／mL, pH value of 8 ~ 9, viscidity is 50～700mPa·s，particle diameter is 1.0 μm (ID 0.82μm), shell thickness is 0.091μm，volume porosity is 55％.
Conclusion Hollow plastic pigment due to its own advantage made a large number of applications in the ink-jet printing paper, plastic paint plastic paint usage at 10%, it can improve the performance of coated paper to change the coating surface smoothness and gloss, but the main effect is special effects in the finishing course.

The microstructure primarily consists of relatively large grains of single β phase (Fig. 1-a).
A consequence of such ω-assisted heterogeneous nucleation is that a relatively large number of α precipitates are finely formed and uniformly distributed within β matrix.

The early elastic modulus of cementitious materials is an important parameter in the design of structure, but attaining the elastic modulus needs a large number of experiments.
The cement paste is composed of three phases: the anhydrous cement grains, the hydrates and the porosity.

As shown in Fig. 1 Fig. 1 Schematic diagram of matrix abrasive wear The vertical component OB of the oblique force OP acting on the rock debris can press the abrasive grain into the matrix surface, and the horizontal component OA can make the rock debris and the matrix surface do the relative movement.
Experimental results are shown in Tab. 1 Tab. 1 The relationship between the matrix hardness and its wear resistance The matrix number Average wear rate[g/m] The average resistance coefficient[m/g] Matrix hardness（HRC） 1 0.1502 6.657 50 2 0.2106 5.072 48 3 0.1971 4.748 46 4 0.2693 3.713 42 5 0.3146 3.179 40 6 0.3045 3.284 32 7 0.5516 1.813 27 8 1.253 0.798 20 Regression analysis of the data, the regression analysis of different types, the correlation coefficient R between matrix hardness and wear resistance is more than 0.87;they have the strong correlation.

SiC epi-layer grown above these terminated micropipes is continuous without any twins and grain boundaries.
Finally we can say that Ti is one of the most promising solvents since it realizes stable solution growth without formation of crucial number of defects.

The material has a small grain size of ~5 µm, and the mean particle size in the material is ~3 µm.
It was therefore not possible in this experiment to determine whether the misfit stresses continue to evolve or cycle at greater numbers of stress cycles.
However, in this experiment it was not possible to determine unambiguously if there is stabilization of the misfit stresses at these or larger numbers of cycles.
At the peak tension and compression loads, the strains becoming increasingly tensile and compressive, respectively, as the number of cycles increases.
It is not clear from the results whether the shape misfits have completely stabilized after the five cycles that were applied, or whether there would be further changes at greater numbers of load cycles.