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Introduction Natural stone materials with good properties, its texture, resistant to wear and corrosion, become the world's most important construction materials since the ancient times.
With different content of its composition, the physical and chemical properties of the stone material are quite different.
The factors influence the fracture of the granite thin slab can be divided into the external factors and internal factors.
The external factors in the process of grinding are force and vibration.
The internal factors are native cracks, micro voids, grain boundaries of the granite thin slab, etc

Although a great deal of nonlinear influence factors have been researched separately, the meshing backlash and bearing contact are the major influence factors in planetary gearing due to significant clearances.
In this paper, a dynamic simulation model of planetary gearbox with gear mesh backlash and contact of multiple bearings is accomplished to study the effect of both the factors at the same time. 2.
The mass and material properties are listed in Table.1.
The contact spur gear method calculates the contact forces by using the involute function (which describes the tooth profile) and the contact properties.
Analytical characterization of the unique properties of planetary gear free vibration[J].

These significant features will be considerable factors in drug carrier design.
Many researches focused on PEG as a plasticizer to PLA to cause the property changes, such as mechanical properties, thermodynamics and polymer processing properties.
However, the PEG modified PLA for drug carrier design with the respect to the unique modification properties has not been well-reported [13-21].
Mechanical test were not done because the mechanic properties is not a main concern in drug carrier system in medicals. 2.
The crystallinity will seriously affect the degradation and therefore the drug release properties, which will be detailed later. 3.

The presence of macrosegregation could result in different mechanical properties in the corresponding locations [5], and therefore variability in physical and mechanical properties of the final product.
Despite the fact that most of segregation phenomena can be physically explained [6], the increase in ingot sizes and the existence of a multitude of factors that could affect the macrosegregation properties make the analysis of this phenomenon more complex.
This could affect the mode of the primary solidification, austenite (γ) or ferrite (δ), which could affect in turn the quantity of alloying elements, (γ) promoting or (δ) promoting, contained in the solidifying phase.
Summary The individual alloying element chemical heterogeneity analysis is a useful way to understand the macrosegregation mechanisms and properties.
Funatani, Handbook of mechanical alloy design, Marcel Dekker, Inc., New York Basel, 2004.

It was discovered that subsurface cracks distributed around shear stress peak, and flaking failure was dominated by subsurface shear stress. 1 Introduction PPS (Poly-phenylene-sulfide) has excellent mechanical properties such as water resistance and corrosion resistance.
Due to such mechanical properties, PPS bearings are widely used in food processing machines and washing machines.
(2) Shear stress is affected by friction between subsurface crack faces and shear stress works as crack driving force.
Lundberg and Palmgren, Dynamic capacity of rolling bearing, Acta Polytechnica, mechanical Engineering.
(Editor-in-Chief), Stress intensity factors Handbook Vo4, 2001, pp1072-1075, The society of the Materials Science, Japan & Pergamon Press

The presence of water trees directly affect the life of the cable.
Table 2 Effect of DCP on the Mechanical Properties of Cross-linked Insulation Material Formula No.31 No. 32 No. 33 No.34 No. 35 No. 36 DCP (phr) 0 0.5 1.0 1.6 2.2 2.5 Tensile Strength (Mpa) 11.1 12.4 14.9 18.7 25.8 30.1 Elongation at Break ( %) 487 463 454 448 441 423 Load Elongation (％) Broken Broken Broken 155 75 70 Antioxidant.
Effect of antioxidant 300 on material thermal aging properties was shown in table 3.
Effect of sorbitol on PE space charge and properties of anti-watertreeing[J].
[7] DOU Ming,WEN Xi-shan, GONG Ying.The qualitative and qualitative study on effects of some factors on the growth of water tree [J].

Fig.5 Variation curve of � under certain inputs of WA and WB Fig.6 Simulation results of lapping traces on ball surface 0 20 40 60 80 -5 0 5 10 15 ¦¤¦Ä (¦Ìm ) Spin angle( 0 ) 30 40 50 60 70 80 38 40 42 44 46 48 Viberation(dB) Load(g.force/ball) Fig.7 Relationship between � and modifying Fig.8 Relationship between vibration ball’s capacity of diameter difference ( � � ) and loads under given conditons WA/WB (rad/s) Time (s) � ( �) Journal Title and Volume Number (to be inserted by the publisher) 199 Effecting Factors The two keys to globularity are affected by lots of factors expect for the motion principle of lapping process.
Some factors are listed below: Precision of Tools.
The factors, expect those mentioned above, such as the chemical and mechanical properties of slurry and pad also affect the shaping process, should be chosen properly.
Wang: Ultraprecision Manufacturing Technology Handbook (Mechanical Industry Press, China 1999)
Shi: Mechanical Technologist Vol. 8 (1995), p. 15

It has an advantage for avoiding from repetition of experiment as several factors are utilized in experiments.
The variables in this study contained three numerical factors of ambient humidity, applied voltage and tip speed.
Chang, Design of experiment (DOE) method considering interaction effect of process parameters for optimization of copper chemical mechanical polishing (CMP) process, Microelectronic Engineering, 83 (2006) 506-512
Mahmood, Physical properties of fish gelatin-based bio-nanocomposite films incorporated with ZnO nanorods, Nanoscale research letters, 8 (2013) 1-6
Rusop, Optical properties of well-aligned ZnO nanostructure arrays synthesized by an electric field-assisted aqueous solution method, Ceramics International, 40 (2014) 11193–11198

（4）The parameters of discrete element material properties and element stiffness matrix are calculated, the total stiffness matrix is assembled and the displacement of node is calculated
The Lagrangian multiplier is qualified by convolution processing on the sensitivity values with the convolution factors
The updated design variables are convolution processed by the selected convolution factors
Mechanical Engineer,2010,07:45-48[In Chinese]
Chinese Journal of mechanical engineering, 2004，40(12):31-37[In Chinese].

Moreover, they did not study the influence of the slope height, and Hansen [4] didn’t take account the effect of soil properties.
Also, Gemperline [24] who developed empirical equations for the ultimate bearing capacity factors for a footing on a slope based on centrifuge tests.
The properties of the interface elements are related to the properties of the adjacent soil elements, for the smooth case, the cohesion is set as C=0, these ensures that the shear stress underneath the footing is zero and the displacement of nodes in the horizontal direction is free, while for the rough case C=Cu, it is characterized with normal stiffness Kn =109 Pa/m and shear stiffness Ks =109 Pa/m.
Various geometries and soil properties were considered, the results of the analyses were compared to other available solutions.
Influences of nonassociated flow rules on seismic bearing capacity factors of strip footing on soil slope by energy dissipation method, 2007, pp. 842–847