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The Selection of Physical and Mechanical Parameters.The selection of the physical and mechanical parameters of rock and soil importantly affect the numerical analysis.Over field engineering geolog ical survey and mapping, drilling, in situ testing, combined with some of the laboratory test data and referring to the past experience in analog engineering analysis to determine the physical and mechanical parameters.
Table 1 Physical and mechanical parameters of the rock and soil mass of slope.
Fig.5 Picture of max shear strain distribution of primary excavation of north wallslope The main reason of occurring the results of Figure 5 is that North Slope in the first mining district of the East open pit is formed by a thick layer of silty soil and silty clay, its stability is mainly controlled by the mechanical properties of the soil, especially red silty clay (red clay).Its special physical and mechanical properties, vertical fissures, vertical permeability is greater than the horizontal permeability coefficient, and groundwater is easily gathered here.
By backpressure treatment in platform1330 to 1348, slope safety factor increased to 1.1856, and the upper soil layer of slope maintained good stability.
Considering the differences of parameters of rock mass in the collapse column within the affected areas and external one was necessary.

The mechanical properties of Potassium Dihydrogen Phosphate (KDP) crystal had been relatively well investigated, and it was reported that mechanical properties of KDP crystal are anisotropic corresponding to crystallography orientation.
Researcher Chen M.J. analyzed critical cutting condition for brittle-ductile transition of KDP crystals in ultra-precision machining, he stated the mechanical characteristics of KDP crystal anisotropy, the tool rake angle, and cutting parameters are main factors for ductile cutting KDP crystals [4,5].
The major frequency component, 67.1Hz, should be the result of mechanical anisotropic properties on {001} plane of KDP crystal, which have four periods.
Fang: Near surface mechanical properties of optical materials in deterministic micro-grinding (University of Rochester Publications, USA 1997)
Ma: Research on Mechanical Properties of KDP Crystal in Ultra-precision Machined Surface (Harbin Institute of Technology University Publications, China 2006)

In spite of numerous experimental and theoretical works the understanding and control upon crucial factors such as step and terrace stability or surface roughening is not fully comprehended and then technologically optimized.
Graphene growth on SiC wafers is one of the most promising routes for benefiting from the intrinsic properties of graphene in planar technology electronic applications.
Instead, Si-terminated SiC substrates require the formation of the so-called C buffer layer to enable the epitaxial growth of graphene films, which results detrimental to graphene structural, therefore, functional properties.
Evaluated as independent variables our study exemplifies a fine but very complex interplay of factors.
As it occurs for both CMP and MP substrates, SiC de/reconstruction is probably influenced, among other factors, by the use of the graphite cap, which is discussed below.

The microstructures and mechanical properties of the sheets were tested, and the cause of the increase in sheet deformability was analyzed.
Moreover, the microstructures and mechanical properties of the Al alloy sheets before and after pretreatment following the stamping are analyzed.
The mechanical properties of the untreated sheet, welding joints, HAZs, and welding seams were tested, as shown in Figs. 2 (b)–(e).
However, the microstructure of the material is an intrinsic factor for determining material properties.
The mechanical properties of the sheet pretreated by arc welding are tested (Fig. 2), and the results are shown in Fig. 9.

Internationally, the research on new permeable pavement materials has led Lu G[7] and others to use recycled ceramic aggregates and bio-based polyurethane adhesives instead of natural aggregates and asphalts to obtain good mechanical properties, functional properties and environmental properties.
The study pointed out that the most critical factor affecting ceramic permeable bricks is the crystal phase type and state, and the ceramic aggregate should not penetrate too much during preparation, otherwise the permeability coefficient will increase but the compressive strength will decrease.
A large number of studies have shown that the mechanical properties of permeable bricks are inversely proportional to the water permeability, so the core factors and test methods that affect the relationship between the two are all permeable.
Separation factor method Separate the mechanical properties of the permeable bricks from the water permeability, find the corresponding optimal conditions, and then comprehensively analyze the various factors to finally obtain the optimal solution.
Preparation and properties of red mud permeable bricks [J].

These factors in turn are affected by the tool geometries, the cutting conditions, and the properties of the work materials.
Establish Of The Mathematical Model In this research, all other factors are kept constant.
The four factors are shown in Table 1 and an orthogonal table is shown in Table 2.
By removing the insignificant factors one by one, the resulting ANOVA table for reduced model is shown in Table 3.
The adjusted R2 is a statistic that is adjusted for the “size” of the model; that is, the numbers of the factors (terms).

In the future, improved modeling of microstructural evolution and attendant mechanical properties will incorporate these important features.
In the future, improved modeling of microstructural evolution and attendant mechanical properties will incorporate these important features.
Mechanical Properties.
It is thought to be another factor affecting toughness of steel depending on its volume fraction, size and morphology.
In the future, improved modeling of microstructural evolution and attendant mechanical properties will incorporate these important microstructural features.

Material properties mentioned above are shown in Table 1.
Table 1 Material properties Material name Material properties BK7 optical glass mohs hardness: 6.5;density:2.5-3mg/mm3; thick: 2mm white corundum abrasive mohs hardness: 9;grain size:#180,#280,#320,#500,#600,#800,#1200,#2000 Polyurethane polishing pad shore Hardness:55-95; Type Model:IC1000 2.5-3mg/mm3 Polish a piece of BK7 optical glass each time in accordance with the processing parameters the experimental design.
Study on the effect of these eight factors to lapping under certain lapping conditions.
That is to say, the effect function of factors is obtained first, and then the regression equation.
(1) which X(xi) is the effect function of factors, =1, 2, 3, 4, 5, 6.

There are many factors that affect the geopolymerization process and mechanical properties such as starting material including chemicals and mineral additives, alkali activators, plasticizers, processing conditions that usually time and temperature used.
The curing temperature is also considered as the factor when researching compressive properties of geopolymer matrix.
Finding out the curing temperature at which we can achieve the best mechanical properties of fly ash-based geopolymer matrix and unidirectional glass fiber are the main targets of this project.
In order to determine the mechanical properties, the samples were prepared and tested for compressive properties.
This is may be caused by sintering factor that the reaction during the process was changing of sample properties from polymer to ceramic.

This article analyzed from the aspects of reservoir, oil production, storage and transportation, etc the effects of colloid asphalt, the asphalt deposition analyses the influence factors, in view of the colloidal asphaltene harm, put forward the methods and measures to improve colloid asphalt influence.
In the process of reservoir evolution and migration, due to the pressure, temperature, and factors such as reservoir fluid to a change in the group, asphaltene precipitation analysis may from crude oil system, bring a lot of difficulties to the reservoir development.
Colloid asphalt environment impact analysis of crude oil Part of asphaltene dissolved in oil, while more most of the asphaltene is in a state of suspended colloid particles, colloid will parcel on the asphaltene molecules, to form clumps and prevent asphaltene precipitation, colloid is insufficient or other factors can lead to a state after damage, so as to make the asphaltene deposition occurred during oil system [7], affects the viscosity of crude oil.
(3) Adding light oil viscosity, however, mix oil changed the composition of crude oil and colloidal properties, can lead to a suspended the asphalt deposition in crude oil, pipeline and heat transfer process in trouble
Research on anti-aging properties of recycled asphalt.