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(7) According to the analysis above, impact factors on grinding force for single abrasive consist of Reynolds number Re of abrasive flow, material flow rate U, the pressure gradient ▽P when abrasive flowing, abrasive particle size d, ξ is shape factor of abrasive.
As far as the whole abrasive in abrasive flow is concerned, abrasive number ψ of unit grinding material must be taken into account in contact with the surface of part.
Conclusions The following conclusions can be drawn from the analysis of movement of abrasive flow: (1) Because the abrasive flow is viscoelastic fluid, the total normal stress tensor on wall is less than the total normal stress tensor in the direction of flowing; (2) Slippage on wall is one of the necessary conditions in abrasive flow machining; (3) In the processing of abrasive flow, viscosity coefficient of abrasive flow, grinding coefficient of abrasive grain and first normal-stress difference are the main factors influencing slippage on wall; (4) The grinding force in slip is proportional to the force of the entrance; the grinding force of unit length will increase tempestuously in the direction of flow with the decreasing slip height.

A small number of long strips of reinforcement could be seen in Fig.1 (a), (b), but could not seen in (c), (d).
Meanwhile, grain defects and distortion would form more micro-battery, therefore, it would facilitate the nucleate of pitting, in the weight loss of composite materials would increase, corrosion resistance would deteriorate.
When the enhance particles increased to 10%, due to the intermetallic compounds with high corrosion resistance, which would interrupt the continuity of the matrix, inhibit the further expansion of pitting corrosion, making the number of composite pitting more, the diameter of the pits was small and light, therefore, the total weight loss is smaller, corrosion resistance of composite materials would be greatly enhanced.

Efficiency Let k be the number of attributes with respect to identity ID. p is bilinear pairing in G1. sk denotes private key.
In addition, the number of group elements in a private key or in a signature grows linearly with the size of the identity.
Waters, Attribute-based encryption for fine-grained accesscontrol of encrypted data, Proc. of CCS, New York, ACM Press, pp. 221-238(2006)

The number of cycles for an aircraft component, up to in-service fatigue failure, determines by the S-N curve in dependence on the cyclic loads conditions.
Al-based alloys under uniaxial cyclic loads, with surface state without dramatic roughness or with residual stresses in the surface layer because of its surface hardening by the well-known shot-peening procedure, had several types of subsurface origins in area of VHCF, Fig.1: (1) triple point of interacted grains; (2) area ahead of the porosity; (3) smooth facet with or without small particles.
Number “1-3” in (b) pointed out zones of local X-ray analyses of material composition.

Percentage passing / % Fig.3 Particle size distribution curves for different soil types But it is difficult to take the soil samples home if there have large numbers of big particles.
To find the area of the particles use dot notation to access the area field element of grain data structure array to get the actual number of pixels of the particles.

The compactness and structure of the soil can be improved and the bearing capacity can be increased. 4, drainage effect of the pile body: At the primary stage of pile, because the coarse grain is filled in pile hole and surrounding, it forms the vertical drainage and decompression channel, it make the water upward along the pile body.
According to "Technical code for testing of building foundation piles" JGJ106-2003, J256-2003 and "Specification for low strain dynamic testing of piles" JGJ/T93-95, 1010 CFG plies were tested, accounting for the total pile number 10%. 910 of them belonged class I and the proportion was 90.1%; 76 of them belonged class II and the proportion was 7.5%; 28 of them belonged class III and the proportion was 2.4%.
Table 2 Result of Static Load Text Pile number Deformation modulus (Mpa) Compression modulus (Mpa) Termination load (kPa) Accumulative total settlement (mm) Bearing capacity characteristic value(kPa) 3-10 42.28 33 900 27.19 450 13-11 46.77 37 900 24.26 450 4-30 36.41 29 900 32.55 450 11-27 46.09 36 900 25.54 450 3-48 43.14 34 900 26.39 450 Conclusion The bearing capacity of composite foundation after treatment of this project has increased by 1.8 times than that of natural foundation; the compression modulus met the design requirements.

In the synthesis of PZT powders, the lower temperature leads to slower crystal nucleus formation rate, that is, less formation number of crystal nucleus per unit time.
Due to the formation of crystal nucleus requires a long time, the grain sizes of crystals formed by previous crystal nucleus growth are bigger, and those of the later formed crystal nucleus are smaller.
With the increasing of temperature(200oC), the number of crystal nucleus formation of powder per unit time rapidly increased and particle size also gradually reduced (100 nm).

The density of states of each primitive cell by definition is equal to the results that the number of lattice wave mode is divided by the number of the total of the primitive cells.
Chen, Mechanism of grain growth about Mg(OH)2 under thermal liquid condition, Rare Metal Materials Science and Engineering. (2004) 1-4.

A bimaterial is composed of an FGM (denoted by number 1) and a homogeneous material (denoted by number 2).
It was assumed that all internal cracks in the FGM have the same size 2ak = 2a (k = 1, 2, ... , N), for example, they have the characteristic size of the grain size of the material.

The decorative effect of laminate flooring was poor; especially its decoration layer was printed wood grain paper which lacked three-dimensional decorative effect and layering [6].
Fig. 1 Experiment technology flow chart Fig.2 Curve of hot-pressing Table 1 Hot-pressing process orthogonal test scheme Test Number Hot-pressing Temperature [℃] Hot-pressing Pressure [Mpa] Hot-pressing Time [s/mm] 1 160 3 30 2 160 4 40 3 160 5 50 4 170 3 40 5 170 4 50 6 170 5 30 7 180 3 50 8 180 4 30 9 180 5 40 Experimental Results and Analysis After testing and statistics, the average values of wear value, surface bond strength and dipping peeling degree of the thin bamboo veneer consolidated composite floor were listed in table 2.
Table 2 Test result of mechanical properties Test Number Wear Value [mg/100r] Surface Bond Strength [Mpa] Dipping Peeling Degree [mm] 1 0.0124 1.453 26 2 0.0102 1.621 20 3 0.0110 1.608 22 4 0.0087 2.508 16 5 0.0101 2.334 14 6 0.0090 2.479 13 7 0.0068 1.883 31 8 0.0059 2.610 12 9 0.0057 1.891 15 Table 3 Wear resistance variance analysis Source of Variance Square of Deviance Degrees of Freedom Average of Square of Deviance Value of F Critical Value of F Significance A 3.7×10-5 2 1.85×10-5 30.8 F0.10(2,2)=9.00 F0.05(2,2)=19.00 ** B 1.2×10-5 2 0.6×10-5 10 * C 0.1×10-5 2 0.05×10-5 0.8 No Error 1.2×10-5 2 0.6×10-5 Sum 6.2×10-5 8 Table 4 Surface bond strength variance analysis Source of Variance Square of Deviance Degrees of Freedom Average of Square of Deviance Value of F Critical Value of F Significance A 1.05 2 0.525 42 F0.10(2,2)=9.00 F0.05(2,2)=19.00 ** B 0.15 2 0.075 6 No C 0.05 2 0.025 2 No Error 0.25 2 0.0125 Sum 1.5 8 Table 5 Dipping peeling variance