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Table 1 Formulations and physical properties of specimens number formulations[wt%] bulk density [g·cm-3] apparent porosity [%] MOR [MPa] HMOR [MPa] elastic modulus [GPa] zirconia graphite G3 97 3 4.10 15.9 5.2 6.1 5.0 G9 91 9 3.87 14.6 6.3 7.4 5.6 G15 85 15 3.58 13.7 6.8 7.8 5.2 G21 79 21 3.30 12.8 7.5 8.5 6.6 Evaluation Method for Corrosion Resistance A medium frequency induction was used to measure the corrosion resistance of ZG material, sketch of experiment is shown in Fig. 1.
G3 1mm G15 G21 G9 Fig.4 Micrograph of slag line Fig .5 shows that liquid slag penetrated into spacing of decarbonization layer, and the fringe of zirconia grain split acutely, and there is a clear boundary between decarbonization layer and original layer.

Due to the high strength and wear resistance of the D6AC steel [4, 5] a number of the mining equipment manufacturers use the steel under consideration as a material for producing drill bits, casings, bearings instead of the conventional case-hardening steels [6, 7].
Lee, Effect of austenite grain size on the transformation kinetics of upper and lower bainite in a low-alloy steel, Scr.

In addition, they may have inferior resonant characteristics due to a large number of defects in these SiC films such as stacking faults and dislocations (or grain boundaries).

If the calcination temperature is 350 ℃ and the reduction temperature is 350 ℃, the reduced catalyst is numbered as MC350-350, and the code of the prepared carbon nanotubes is M350-350.
The detailed number is shown in Table 3.
Table 1 Catalysts sample number Calcination temperature (℃) Reduction temperature (℃) Catalyst number Carbon nanotube number 350 350 MC350-350 M350-350 350 450 MC350-450 M350-450 350 600 MC350-600 M350-600 450 450 MC450-450 M450-450 450 600 MC450-600 M450-600 600 600 MC600-600 M600-600 Characterization.
Both the number of coarse carbon nanotubes and the tube diameter span increases with the increase of the reduction temperature.
There are nanocrystalline grains of various sizes, which affect the difference of carbon nanotube diameter, possibly because of the agglomeration of active components[18].

To discovery the affection of the shearing surface on the direct shear strength, three different calculation methods of shear surface and its affection on the shear strength were put forward based on the new mathematical model and large number of experimental with improvement direct shear apparatus, the new calculation method makes the result more accuracy and closer to the really shear strength of the samples.
Development of New Testing Apparatus on Direct Shear Test for Coarse-grained Soils[J].Journal of Sichuan University(Engineering Science Edition), 2008,40(4):12－16,in Chinese

It has been shown that Mössbauer spectroscopy enables quantitative evaluation of the degree of ordering of phases occurring in samples characterised by large graining, in the case of which it is not possible to determine the long-range order parameter by X-ray diffraction.
The influence of the nearest neighbouring shells is determined by the number of various atoms in those shells, but not by their space arrangement.

A carbonization time was 1 hour under vacuum condition to produce initial values of particle and grain sizes that had a neat structure and had absorption capacity.
Acknowledgment Full gratitude for the financial support provided by the Directorate of Research and Development of the University of Indonesia in the International Publication Indexed Grant (PUTI) program based on contract number NKB-1018 / UN2.RST / HKP.05.00 / 2020, and Postgraduate Program's support in Materials Science, University of Indonesia, for research facilities.

Experiment Design Experiment Materials and Wall Parameter The experiment uses the C20 concrete that the laboratory abandoned, after man-power broken processing, selected the grain diameter to take the coarse aggregate in the 5~30mm continuous grading, and uses to it stone enveloped with cement processing[7], then maintains for 28 days under the nature conditions, the processed coarse aggregates and the natural coarse aggregates take this experimental according to 1:1 proportion mix the coarse aggregates.
The test sample serial numbers respectively were RCSW1, RCSW2, and the parameters were indicated in figure 1.

As social and economic development, urbanization into accelerated, aggravating of agricultural activities, industrial "three wastes” and the large number of vehicle exhaust emissions, excessively use of pesticides and fertilizers containing heavy metals, environmental pollution problems had become worse, heavy metal pollution was paying more and more attention [1].
Pinghu located in Golden Yangtze River Delta region, and was an important grain-producing county in Zhejiang Province.

Time step can be roughly estimated that the initial time step approach using the Biot and Fourier number to determine.
When the laser power is 1.6KW, the cladding layer of surface temperature is 3,165℃the temperature of substrate and cladding layers is too high, dilution rate increased significantly in the middle of cladding layer, substrate melt too much, Grain boundaries exist melting characteristics, combined with some cracks, indicating that in this parameter was injected into the molten pool of laser energy density is too large.