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Many novel CuO micro/nanostructures such as nanosheets, wheat grain-like and nanorods [5,6] structures have been fabricated by a range of techniques, including chemical vapour deposition, hydrothermal methods, and some solution processes.
When the initial concentration was 0.075 M, in addition to generate a large number of carambola-shaped particle with the size of 200-300 nm, there also randomly appeared square shaped CuO particles on the copper wafer substrate.

The direct roof is fine-grained sandstone, and its thickness is 14.67m.
Fig.2 Changing curves of vertical stress of measuring points Table 1 Field measurement results of vertical stress of measuring point Drilling number Relative stress peak（Mpa） coefficient of stress concentration Distance between working face and stress peak (m) Distance of mining influence(m) 1 21.5 3.3 6.5 56 6 17.4 3.8 7.3 58 12 19.2 3.2 6.5 57 17 23.5 3.6 7.5 54 19 25.5 3.4 7 57 From Table 1, it can be seen that the relative peak value of pilot abutment pressure in working face reaches 25.5Mpa, the average stress concentration coefficient is 3.4, distance between working face and stress peak is about 7m and influence scope is 56m.

Titanium and vanadium finished the grains and improve the mechanical characteristics.
Borsos, Experimental and theoretical aspects of aluminum expanding laser plasma, Japanese Journal of Applied Physics, 48, issue 6 (2009) article number 066001

Through adjusting numbers of CBN grain, type and proportionment of adhesive agent, the tools materials toughness was improved.

The number of pores increases with increasing applied voltage. 2.
The extent of melting as a function of applied voltage is indicated by the decrease in the visibility of grain boundaries (surface homogeneity).

Construction waste , concrete, brick , gravel and other waste materials into recycled aggregate for concrete block , the number of natural aggregate savings , to maximize the protection of the environment .
Table 1 Aggregate basic performance indicators table aggregate water absorption/ % bulk density /㎏/m3 crush index % modulus of fineness name grain diameter /㎜ pit sand ＜4. 75 - 2618 － 2.90 crushed stone 4.75～9.5 2.97 2670 11.2 － recycled fine aggregate ＜4.75 7.03 2420 14.6 2.78 recycled coarse aggregate 4.75～9.5 6.76 2400 15.9 － 2 Experimental Design This test uses Dimensions 190 mm ​​× 190 mm ​​× 190 mm ​​block outer wall thickness of 30 mm , single-hole , for a 190 mm ​​single row of holes block with brick .

In the course of deformation, and simultaneously, a number of processes occur, namely: the deformation of austenite, the phase transformation induced deformation g®e and e®a’, and also the deformation of austenite and martensite both by slip and by twinning alike.
In turn, the lowering of the intensity of them in case of the higher degrees of deformation may be explained by the formation of the e martensite from the grains of those orientations, because they are privileged, and it is in them that the g®e transformation occurs first.

., Germany) with an outer diameter of 6 mm), wall thickness 0.5 mm, length of the abrasives section 10 mm and the grain size D76 (63/75 μm) were used.
The normal tool concentration provides a smaller number of abrasives than the high one, which enhances the chip evacuation from the machining zone and reduces Ra.

Secondly, the ash grains play the role of fine aggregate, or rather the smallest fractions of this aggregate.
The use of more coarse ash fractions is not recommended due to the fact that they contain a significant number of large inclusions that adversely affect the strength and durability of lightweight concrete.

These levels differ in their constituent elements (nuclei or atomic cores, molecules or microcrystals of chemical elements, spherulites or grains and subgrains, etc.) and the type of bonding (chemical, physical, mechanical or the combination of these).
In general, any property of metal and non-metal material can be determined by the total contribution of all its structural levels [1-3]: MP = f(Σ(ki∙MPi)), (1) where MP – material property; MPi – material property determined by a certain structural level according to Table 1; ki – coefficient, which takes into account contribution of a specific structural level of material to a certain (physical, mechanical, chemical, etc.) property; n - number of levels of the material structure, where the first (basic) is the electron-nuclear (chemical) level of the structural organization of the material.