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Histogram equalization is for nonlinear tensile, redistribution image pixel values, the number of pixel gray level range about the same.
If the image has a horizontal grain, the COR in the horizontal direction matrix of COR value will be greater than the rest of the matrix.

The following parameters of cutting modes were taken as independent variables: fn – longitudinal feed of the cutter per revolution of the processed shaft, 0.08…1.2 mm/rev; faz - azimuthal feed circular feed of a workpiece, m/min; nr – number of revolutions of the workpiece, 12.5…630 rpm; nb – revolutions of the tool, 6000…18000 rpm; amf – cutting depth, 0.1…0.9 mm.
Influence of Additives of Nanoparticles on Structure Formation of Fine-Grained Hard metals.

In order to further increase the density above 500 Gbit/in2, some technical problems must be solved, such as the effects of thermal fluctuation, which become more and more serious with decreasing magnetic grain size.
Based on these two of basic patterns, we also designed a series of patterns with different pitches, line intervals and numbers of post rows.

It can be known from Figure that the main crystals included in two kinds of residual liquid are of the identical types and are of normal constitutive paraffin, namely, coarse grain paraffin, the molecular formula is described as (CH2)x.
DL4 Single Deoiling Spectrogram Single Deoiling Spectrogram after touches for two times Fig. 3 X Diffraction Spectrogram for DK4 Single Deoiling as well as Distilled Residual Liquid after Single Deoiling for two times Table 2 The interplanar crystal spacing and variation condition parameters The single deoiling distilled residual liquid The distilled residual liquid after 2 –time touches interplanar crystal spacing/nm 4.1490 4.1554 variation condition/% 10.5 21.6 4.Phase State Simulation on Paraffin Deposition Mechanism The Winprop phase state in the CMG numerical simulation software can be employed to analyze the module and the characterization method of crude oil can be employed to perform the characterization analysis for C11+ , the corresponding extension can be employed until C20+ for carbon number.

Near-wellbore friction According to Micheal theory, perforation friction calculation formula is as follow: (3) Where ρ is fracturing fluid density, g/cm3; Q is delivery rate, m3/min; np is the number of perforation; dp is perforation diameter, m; cp is eyehole flow coefficient.
The force analysis of single proppant in stationary flow is expressed as: (13) Where FS, Wb and Fh are respectively defined as stokes resistance, effective gravity and grain of interference force.

Currently widely used method is to transform it into a sphere particles diameter, namely particle size: experiments in order to avoid the seeds is too small and blocking suction hole, samples for the primary screening, screening of grain diameter less than 1.5 mm, then randomly selected from 200, the third axis is measured with vernier caliper, accuracy of 0.01 mm, the probability distribution as shown in figure [1], it can be seen that three axis frequency similar to normal distribution.
Figure [2] Suction nozzle flow field in the geometric model Table [1] Geometry size and fluid properties geometry The parameter value Fluid properties The parameter value Import cone large (small) size 0.03（0.006） density 1.2 Imported high 0.01 viscosity 1.5x Excessive zone height 0.002m Outlet pressure 0Pa Exit diameter 0.001m Inlet pressure 5KPa/10KPa/20KPa/30KPa/40KPa Export highly 0.006m Reynolds number Re 1~20x 3.1.2 Mesh to the model In the grid, in order to get more tidy, regular grid, the geometric model is divided into three parts, the upper part is divided into a rectangle, the middle is a transition area, the following is an isosceles trapezoid.

The definition of includes a drag function (CD) that is based on the relative Reynolds number (Res), which is given by Equation (8)
The radial distribution function is a correction factor that modifies the probability of collisions between grains when the granular phase becomes dense.

Table 1 Chemical composition of the test materials Sample number #0 #1 #2 Boron content, [%] 0 0.56 1.23 A solidification test was conducted using a DSC (STA449C, Netzsch).
Austenitic dendrites were not clear, and bundles of eutectic boride structures appeared all over the austenite grain boundary with breaks in only some localities.

Large numbers of coal fly ash (CFA) were produced in electric power plants in the world every year.
It can be observed from micrographs of modified CFA that there were some regular cubic particles and their grain diameter was smaller compared with commodity zeolite 4A.

The surface of the samples with conglomerate coating are porous surfaces [10, 15] with grains size 0.1–0.25 μm Tribological tests were performed using CSM Instruments pin-on-disk type tribometer according to ASTM G99-05 [16] at an air temperature of 20.4°C and a humidity of 35 %.
During the study, an assessment was made of the coefficient of friction of a number of samples.