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For example the embankment of expressway is usually high, so it not only takes up large number of farmland but also needs a lot of clay resource to filling with.
By the grain size analysis, it can be known that the content of particles smaller than 0.075mm of the river sand is from 0.3% to 2.0%.
As the moisture content decreases, the safety factor increases, and this is mainly due to the moisture content reducing increases the friction between grains of sand, enhancing the shear strength.

The use of this processing technique reaches, under some circumstances, homogeneous and fine-grained alloys near room temperature.
During the processing itself, the powders mixtures are placed in a sealed vial, with a number of hardened steel or WC coated balls.
In order to separate the effects of grain sizes from internal strain, the full widths at half maximum of the Bragg peaks DK as a function of their K value can be plotted, K being the corresponding reciprocal space variable (K = 2 sin q/l) [22].

Large number of reports are dedicated to establish the RTFM as intrinsic nature of these systems [11].
Form the micrograph; it is clear that the films are composed of grains of nanosize.
The film is composed of nano grains as earlier seen through FE-SEM.

Although the D peak intensity of this sample was lower than the other samples, its D peak intensity was still higher than its G peak intensity, suggesting the grain size of graphene was very small, because D peak intensity is inversely proportional to the crystallite size [11, 12].
The number and size of the islands on the sample surface continuously increased with the growth time as shown in Fig. 3(d and e).
The intensity ratios of D to G peaks of samples grown for 30 minutes, 60 minutes, 90 minutes and 120 minutes were 1.07, 1.43, 1.07, and 0.933, respectively, suggesting that the grain size of graphene was still small even as growth time increased.

The separation effect is not ideal because the perovskite crystalline grain is minute.
Where, firstly, the BF slag containing titanium was dealt with carbon nitriding process and the process parameters were optimized to promote the growth of carbonitride grain for separation of products.
Main phase and their percentin in BF slag containing titanium Phase composition perovskite titanaugite+ba yi mineral glassiness Carbon nitriding titanium solid iron wt, % 18-21 30-35 39-44 1 5-7 Table 3 Energy spectrum analysis with scanning electron of the slag,% Number O Mg Al Si S K Ca Ti Mn Σ 1- perovskite 32.59 - 1.06 1.18 - - 30.15 35.03 - 100 2- perovskite 32.11 - 0.43 - - - 31.08 36.38 - 100 3-posterior vitreous 42.98 5.88 10.15 17.62 0.76 1.05 18 2.77 0.79 100 4-posterior vitreous 41.43 4.36 10.02 19.15 1.36 1.73 20.28 1.67 - 100 5-bayi mineral 41.03 4.21 7.68 13.26 0.52 - 22.08 11.22 - 100 6-titanium pyroxene 40.73 5.49 10.79 17.66 - - 18.88 6.45 - 100 Thermodynamic Analysis of Carbon Nitriding Reaction The slag used in the experiment mainly contains TiO2, CaO, MgO, SiO2, Al2O3 and other oxides.

Suitable hot extrusion can effectively improve the defects such as segregation, porosity, and coarse grains in cast structure to obtain small and uniform recrystallized microstructure.
Effect of alloy element on thermal conductivity The Serial number Magnesium silicon ratio The iron content electrical conductivity thermal conductivity 1 1.56 0.20 28.0 0.000183 2 1.66 0.15 29.3 0.000192 3 1.73 0.20 29.1 0.000190 4 1.78 0.15 27.5 0.000180 5 1.83 0.20 26.0 0.000171 Adding the Rare Earth Elements Properly Rare earth has the effect of degassing, after joining the rare earths can react with the main gas hydrogen in aluminum liquid will product ReHx compounds.
And the grain boundary segregation and coring segregation basically eliminated [9].

One possible explanation could be that thiourea molecules coaxed producing more crystal nucleus and hindered the crystal grains growth of ZnO.
The generated electron-hole pairs had higher oxidation-reduction ability, although the numbers were lesser than that of pure ZnO.
Thiourea molecules coaxed producing more crystal nucleus and hindered the crystal grains growth of ZnO.

Experimental Procedures With compounding ingots listed in Table 1, hypereutectic Al-17Si-4Cu and Al-17Si, hypoeutectic Al-7Si-4Cu and Al-7Si alloys were prepared without adding grain refining agents to primary and/or eutectic silicon.
The number of primary silicon particles extremely increases in rheocast samples with sono-solidified slurry, because the primary silicon is only 5area% in that with normally solidified slurry.
Okumiya, Grain refinement of primary silicon in hypereutectic Al-Si alloy by ultrasonic Radiation, J.

If any of the original dimensions M or N is an odd number, delete the last row or column of the image.
Fig.6 Portrait engraving: a) grayscale image, b) binary image with color differentiation of stroke strength levels, c) engraved image The proposed image processing is applicable only for engraving on the frequently used black granite with fine grain.
Other setups of stroke strengths and other image enhancement processes need to be developed for other kinds of stone that have significantly different grain or colour.

Therefore, the white substance cannot be alumina abrasive grains, but the material (abrasive grains) peeled off during the friction process of the metal disc.
By comparing the dezincified surfaces of the three metal shaft sleeves after corrosion wear, the uniform wear marks on the surface of the alloy B shaft sleeve can also be seen, as shown in Fig.17 (b); There are obvious pits on the surface of alloy A shaft sleeve caused by material spalling; The surface of 316L stainless steel has the most serious wear, the largest number of pits, the larger pit area and the most uneven surface morphology, as shown in Fig.18 (b).