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(3) Coarse Aggregate: Grain size is 5 ~ 31.5mm graded limestone gravel, physical and mechanical properties are shown in Table 3
It showed that relative dynamic elastic modulus of concrete freeze-thaw decline was not obvious at an early stage, to reach a certain number of freeze-thaw times there would be a sudden drop, concrete without fly ash appeared this phenomenon in 175 freeze-thaw cycles.
The results show that: (1)Filling fly ash could change the cavity structure of concrete, increased the cavity number per unit volume and mainwhile accelerated freeze-thaw deterioration.

A number of complexes with same center metal and different ligands appear dissimilar antibacterial activity [5, 6].
SEM images of the molybdates are displayed in Fig. 2, with different shape of grains for different kinds of samples.
An increase in the bacteria number implies more light being absorbed by the bacteria.

Feng and his groups point out that with the variations of addition of PEG and the molar ratio of PEG/Zn2+, the dissolved state of PEG and the interaction of PEG and zinc species will be different, which also results in different attachment stability and the orientation of the nucleation, affect the crystallization of ZnO crystalline grains and the final morphologies of ZnO [7]. 
And the nuclear number density increased with the increase of the concentration of MPS.
The exponential function, the fitting curve used here is as follow equation (3): (3) In which, the dependent variable N stands for the difference nuclei population density of copper electrocrystallization between adding different concentration of MPS and additive free solutions, the independent variable CMPS stands for the concentration of MPS added in solutions, k1 and k2 are undetermined parameters, which also are positive numbers。

The reflection came mainly from Al2TiO5 (marked by #, PDF number 01-070-1434) and the substrate α-Ti (marked by $, PDF number 44-1294).
The corrosion product consists of very fine crystal grains which may have protection effect.

He has found that the sound velocity V in a crystal can be related to its average relative atomic mass M ( defined as molecular mass divided by number of atomic in a molecule ) and density ρ by baM V +−=)/log( ρ (1) where a and b are constants determined by experiment.
So that influence of grain boundary on thermal conductivity of crystal can be neglected at room temperature.
Applying average atomic density Q (defined as sum of element density in a molecular divided by number of atomic in a molecule) to instead of density ρ in equation (8), an empirical equation for predicting thermal conductivity of crystal materials can be got as follows BMAQk −=)/log( (9) where A and B are constants determined by experiment.

Therefore, the cohesive stress c is expressed as  2/ 2/ cos      dfnA sofc (6) where n is the average number of bridging whiskers per unit area of crack surface and f is the probability density of the number of bridging whiskers for the angle .
This figure reveals that the length of the SiC whiskers and the diameter of the alumina grains are of the same order of magnitude, and there scarcely exist whiskers of extremely short pull-out length.

It can be seen that the specimen without hydrogen shows a rolled α + β dual phase structure, with an average prior-α grain size of 14 µm and an area fraction of 81% (Fig. 1a).
It can be seen that large numbers of dislocations appeared in the specimens with 0.278% and 0.514% hydrogen (Fig.3a, e). δ hydrides were found in specimens with 0.278 % and 0.514% hydrogen (Fig. 3b, c).
In addition, large numbers of twins were found in the specimens with 0.514% hydrogen (Fig. 3f).

Experimental The �-Fe-Ni nanoalloy powder in the form of agglomerate consisting of 40 nm grain size was fabricated by hydrogen reduction of Fe2O3-NiO powder at 600 o C for 1h.
It was interesting to note that, the average size of inter-agglomerate pore in the PIM part (brown part) Journal Title and Volume Number (to be inserted by the publisher) (a) (b) (c) (d) (e) (f) (g) (h) 800o C Brown part 1100o C 650o C PIM PM 50µµµµm 400 500 600 700 800 900 1000 1100 0 5 10 15 20 25 30 35 (a) ����V / V0 (%) Temperature ( o C) PIM PM 400 500 600 700 800 900 1000 1100 0 5 10 15 (b) Temperature ( oC) d(����V / V0) / dt [10 -4 s -1 ] 400 500 600 700 800 900 1000 1100 0 1 2 3 4 (c) Shrinkage anisotropy Temperature ( o C) Fig. 2.
Vol. 38 No. 1 (2002), p. 51 Journal Title and Volume Number (to be inserted by the publisher) [6] E.S.

Fig. 1: Experimental set up for high speed end milling of glass A micro-grain cemented carbide tool (diameter = 4 mm, number of flutes = 2) with plasma CVD coating was used for machining rectangular pieces of soda lime glass (dimensions = 20 mm x 15 mm x 5 mm, Composition: 73% SiO2, 14% Na2O, 9% CaO, 4% MgO, and 0.15% Al2O3).
And, finally, a surface roughness value of 151.712 nm could be attained with these optimum cutting parameters with 100% desirability Table 2: Optimal predicted solutions for glass end milling Solutions Number Spindle Speed (RPM) Depth of Cut µm Feed Rate mm/min Surface Roughness nm Desirability 1 30052.77 51.16 8.06 151.712 1 Selected 2 30100.42 56.70 6.41 154.134 1 Validation test was conducted to confirmation the predicted value of the surface roughness corresponding to solution no. 1 of Table 2.

, (5) Where the Empirical constants =0.09; Turbulent Prandtl number =1.0,=1.3; Equation constants =1.44,=1.92; the turbulent kinetic energy production caused by mean velocity gradient , (6) two-phase flow related to the flotation cell fluid flow equation is established.
The greater pressure difference is, the greater saturation gas dissolved in the slurry is, the smaller the surface energy is, the more number of the precipitated bubbles is and the smaller the bubble diameter is[10,11].
This can significantly reduce the induction time of the flotation and reinforce the selective sorting of fine-grained materials[12].