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The definition of shale gas Jinchuan Zhang defined shale gas and said shale gas refers to the thermal maturation or continuous as well as the interaction between biological effects mainly generated, gathered at the gas source rocks in the body, including a free state (that exists between natural fractures and grain pores), adsorbed (presence of clay mineral particles, kerogen particle surface) and dissolved (found in kerogen and asphaltenes), basically includes all the possible presence of gas phase. 3.
However, according to statistics show that only a small number of well-developed natural fractures can be used in shale gas development and production direct, more than 90% of shale gas well needed fracturing to communicate naturally fractured, improving conductivity near the wellbore. 6.2.1 Water fracturing technology Hydraulic fracturing technology uses water to add the appropriate drag reduction agent, clay stabilizers and necessary surfactants to replace the traditional gel fracturing fluid.
A large number of water supply problems lead to development of new environment-friendly technologies fracturing.

Table 2 TiC-NiMo cermet powder particles angularity parameter at different milling cycles Parameter Number of milling cycles, N 1 2 3 4 5 16 SPQmean1 0.619 ± 0.042 0.526 ± 0.056 0.416 ± 0.039 0.316 ± 0.047 0.366 ± 0.048 0.179 ± 0.032 SPQmedian2 0.619 0.549 0.384 0.293 0.366 0.152 SD3 0.145 0.192 0.134 0.156 0.154 0.101 n4 46 46 46 43 39 39 1 SPQmean – the mean value of the SPQ data set 2 SPQmedian – the median value of the SPQ data set 3 SD – standard deviation of SPQ data set 4 n – number of studied particles (data set size) On Figure 3, dependence on SPQmean from milling cycles and uncertainties of measurements of TiC-NiMo powder particles is shown.
Grain defectivity of used powder particles is low.

The most number of scientists associate an activating effect of mineralizers on the ceramic material sintering with the structure of the silicate melt [2, 3].
Specificity of grain and chemical-mineralogical composition determines the technological properties of investigated kaolin: moderate plasticity, low sensitivity to drying, sufficiently high coherency.
In the complex it determines the technological properties of bauxite, such as low-plasticity (plasticity number 4.6 – 5.2), low sensitivity to drying (coefficient of sensitivity to drying 0.3 – 0.4), non-sintering to the temperature of 1400 °C.

Through traditional plant-breeding procedures, a joint venture between CSIRO (Commonwealth Scientific and Industrial Research Organization, Australia) and United Grain Growers Ltd of Winnipeg, Canada has led to the development of edible linseed oil.
The IV is expressed in the number of centigrams of iodine absorbed per gram of sample.
The Iodine number of the oil was unknown, but for linseed oil it is generally stated from 113 to 145.

Hybrid intelligent techniques such Adaptive Neuro Fuzzy Inference System (ANFIS) is used to classify the surface imperfection according to surface roughness measurement or Reynolds Number (Ra).
The image processing output will be in the form of Reynolds Number (Ra-micron) and the classification is performed by using artificial intelligent.
According to the literature conducted on 25 papers about polishing parameter, it is found that the most significant parameter is Polishing time = 6%, Tool speed = 6%, Feed Rate = 9.6%, Polishing force 9.6% and Grain size = 4.8%.

Sepiolite (Yixian sepiolite factory in Hebei Province, China), having an average grain diameter of 150µm was used in this study.
(Grant Number: 2006BAJ02A08) & (Grant Number: 2006BAJ18B05) References [1] R.L.Pozzo,M.A.Baltanás,A.E.Cassano: Catal.Today.

Water jet used abrasive particles of natural garnet of 150 - 300 µm grain size, 3800 bar pressure, 1.02 mm nozzle diameter and 81 mm/min cutting speed.
Individual points in Fig. 6 were amended with corresponding specimen marking to enable further more detailed analysis of fatigue life and crack initiation mechanisms. 290 300 310 320 330 340 350 360 370 10000 100000 1000000 10000000 100000000 Number of cycles Stress range (MPa) Milled - failed Milled - run out H1 H3 H2 H4 H5 D4 S4 D6 D5 S1 H6 D2 S2 S3H7 D3 H8 D1 H2 Fig. 6: Fatigue S-N curve of specimens with milled surface. 200 220 240 260 280 300 320 340 360 380 10000 100000 1000000 10000000 100000000 Number of cycles Stress range (MPa) Water jet impact Center Jet outfall Milled Electroerosion Regression - water Impact Regression - center Regression - jet outfall Fig. 7: Results of fatigue tests of specimens with water jet and electroerosive cutting surface, respectively, in comparison with milled specimens.

The inclined Y groove welding crack test method was used in the experiment, and various welding process tests were grouped, numbered and explained.
The fiber surface in the fracture center is composed of small dimples and a small number of large dimples, which undergo large plastic deformation during crack propagation.
It can also be seen from the microstructure of the fracture that the grains of the joint are uniformly deformed during the tensile process.

However SLM process is defined by a large number of parameters: laser power, scanning speed, layer thickness, point distance, exposure time, hatch space, stripe width, scanning strategy, powder bed temperature, building atmosphere and other), this complicates optimization of SLM process for each new metal or alloy.
SLM process is defined by a large number of parameters.
Attallah, The influence of the laser scan strategy on grain structure and cracking behavior in SLM powder-bed fabricated nickel superalloy, Journal of Alloys and Compounds. 615 (2014) 338-347

Several test cycles of 24 hours were carried out (the number of test cycles was limited by a weight loss of one of the samples equal to 0.07 g.), after that the samples were removed from the installation, and their wear resistance was evaluated by weight loss, and the microstructures of metals were examined by metallographic analysis using the OLYMPUS BX51M microscope at magnifications of 100, 500 and 1000 times in order to investigate the causes of wear of the samples.
The microstructure of the sample of steel 15 with a deposited layer X10, x100: a - crack from the fusion zone; b - crack from the surface of the weld metal Metallographic studies showed the presence of a significant number of cracks in the deposited metal, which propagate both from the zone of fusion of the deposited metal with the base (Fig. 2) and from the working surface, which was probably the reason for the significant mass loss of the sample.
Summary Practical recommendations for optimizing the primary structure are the following: it is necessary to strive to reduce dendritic parameters in massive workpieces, for example, by blocking the process of coarsening of dendritic branches with surface-active substances, and grinding primary grains by selecting heterophasic modifiers.