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Grinding fluid has an important effect in processing work piece, so in view of the new grinding fluid, a large number of tests have been taken in the application of the power ultrasonic vibration honing.
The circumference surface of the grinding wheel, including grain, bond wheel and air hole, and work piece surface are full lubricate.
When grain overpasses the grinding area, it will bring a good effect of lubricating, cooling and protecting grand surface.

During the production of domestic automobile vent pipe, because the crystal grains of welding Joint heat-affected zone are not refined by heat treatment and become very big, forming properties of cold machining of ferrite stainless steel become bad.
For the vertical jet of gas, formula is following as (3) In the formula: is the convective heat transfer coefficient; is the gas Reynolds number; is the number of gas Planck; is the gas thermal conductivity; is the distance between work piece surface and spray nozzle .

The Mo sample has a small grain size (around 10 μm) and 99.9 % purity, with an impurity content listed in Table 3, as provided by Goodfellow metals.
It is more than 1 order of magnitude higher than self-diffusion at the same temperature due to the grain boundary diffusion contribution; probably, measurements in samples with a larger grain size would be closer to self-diffusion, which is work in progress.
In the English translation [17] of [20] Table 34 page 79, the effect of W grain size on U diffusion parameters is reported.
For grain size between 75-170 μm: Q = 282.1 kJ/mol, D0 = 3.6×10-8 m2/s; for grain size 8000 μm: Q = 342.5 kJ/mol, D0 = 2.4×10-7 m2/s, and for single crystal Q = 376.8 kJ/mol and D0 = 1.8×10-6 m2/s.
Even though the number of element is not so high (6), the homogeneity among U diffusion in these metals is noticeable when compared to the large dispersion observed in Fig. 1.

CLC number: S129 Document code: A.
D Methods (1)Electrostatic Radiation: After selecting seeds, 500 grains of the rice, vegetables, cucumber seed is divided into five groups respectively.
There are 100 grains in each group.
Germination rate = G／N (1) (G: total germination, N: seed number.)
*Project Supported by National Natural Science Foundation of China (Funding Numbers: 50977041) were put in the incubator, and the germination experiments References [1] Chen Da.

Low-cycle tests of alloyed compounds showed that an increase in the number of cycles to failure doubled.
In certain modes of the plastic deformation, not only the alignment of the mechanical properties of welded joints and their approximation to the properties of the parent metal occurs, but also the grain orientation directions, the most advantageous with the cyclic axial loads.
Mechanical hysteresis loops: a) – steel 321; b) – TiNi; c) – alloyed weld (the numbers indicate the number of cycles); and d) – low-cycle fatigue curves for steel 321 samples cycle asymmetry factor r = 0,3 (● - alloyed steel 321; ▲ - alloyed TiNi).
If the value of 280 MPa is exceeded, the number of cycles to failure for these welded samples begins to decline sharply.
Hardness numbers for steel varied between 82 and 88 HRB, for weld 79 and 84 HRB.

It is found that with the increase of the pass number of ECAP, the yield stress decreases gradually, but the strain hardening rate increase obviously.
After one pass ECAP process, the grains were elongated along a direction 45º to the extrusion direction as shown in Fig.2 (b), presenting the fiber band.
The breadth of fiber band becomes narrow with the ECAP pass number increases.
With the increase of the pass number of ECAP, the yield stress decreases gradually, but the strain hardening rate increase obviously, as shown in Fig. 4(a), (c) and (e).
The summary is as follows: (1) With the increase of the pass number of ECAP, the yield stress decreases gradually, but the strain hardening rate increase obviously.

The rotating substrates increased the uniformity of the films. 1000 times-magnified pictures were taken to analyze the micro-grains of TiN.
Results and Discussions The Fig. 2 shows the 1000 times-magnified pictures of the surface of KP-4 mold base before (left) and after (right) TiN depositions and it shows the number of micro grains are decreased after film deposition, providing good surface smoothness due to uniform structure which is generally important for the mold function.

Porosity and binder phase among the fly ash grains were investigated using scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP) and capillary flow porosimetry (CFP).
At lower magnitude, differences in the FA-6 and FA-12 samples are not very high, but somewhat higher binding phase content is observable for a higher dose of activator in the form of rims around the fly ash grains.
While the CFP results are given in the percentual number of the pores of certain size with respect to the total amount of detected pores, the MIP results show volume changes of intruded mercury between the two different pore diameters normalized to the sample weight.

Introduction Al-Mg-Si alloys (AA6xxx-series) have a number of excellent properties that make them interesting for the automotive industry.
The alloys had a coarse, equiaxed grain structure (grain size of the order 80-100 µm) and were expected to be texture-free.
The number density and volume fraction are much less in AA6063 than in AA6082, but the precipitates are at the same time larger.
In fact, a large number of small dots, that might arise from GP-zones, were observed between the precipitates.
In T6, it is especially the large number density of β00 particles that contributes to the increased strength of AA6082.

This prototype is the 29th silo in National grain depots of Henan province where 4 squat silos was built in 2004.
The column number and the corresponding measuring wall height measurement point in Table 1.
Table 1　 The Column Number and The Corresponding Measuring Wall Height test point (m) 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.45 0.55 0.65 20一wall number 20 44 68 92 116 140 164 188 212 236 23一wall number 23 47 71 95 119 143 167 191 215 239 25一wall number 25 49 73 97 121 145 169 193 217 241 32一wall number 32 56 80 104 128 152 176 200 224 248 35一wall number 35 59 83 107 131 155 179 203 227 251 Table 2　 Simulation Model Main Parameters Wall Normal stiffness/Pa wall Tangential stiffness/Pa particle Normal stiffness /Pa particle Tangential stiffness /Pa Particles Friction coefficient Friction coefficient between wall and particle particle gravity density kg/m3 4×106 2×106 3×104 3×104 0.5 0.40 35000 Engineering Analysis The large diameter squat silos are generally for flat bottom.
This offers a model of large-diameter shallow silo flat bottom of the silos used, the end positions have three entrances and exits, in the warehouse filled grains to the static equilibrium in Fig.3, the columns were recorded in all measuring points measured wall static lateral pressure values, followed by eccentric unloading of two different conditions, while monitoring the measured 5 different directions side of the wall pressure in the unloading process changes, in order to analyze the eccentric unloading of large diameter shallow silo wall side of the pressure.
So in project, to avoid unfavorable affect eccentricity discharge to side wall, the number of steel bars on side wall should be properly increased in design