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Table.2 Earthquake eluvia soil the soil physical and mechanical properties Name Color thickness (m) Gravel particles （%） sand （%） silt （%） clay （%） ρ(g/cm3) C (kPa) Φ (°) e Sand clay Red-brown 0.5-7 0.1-28.0 20.9-47.0 10.7-38.0 22-55.6 1.57-1.90 8.9-70.0 12.0-35.0 0.8-1.07 Pink clay brown 5-15 15.0-34.0 10.0-55.0 8.0-38.0 10.5-34.0 1.63-1.78 8.9-50.0 18.6-33.0 0.72-1.13 silt Brown spots >10 15.0-47.0 42.3-67.0 8.0-30.2 4.0-13.0 1.66-1.93 10.0-40.0 24.0-35.0 0.63-1.04 On the grain size distribution of it in residual soil from top to bottom, with the increase of weathering degree, significantly reduce the content of clay, gravel content.Eluvia soil layers soil density from top to bottom with the reduce of void ratio increases gradually, basic is within the scope of 1.75 to 2 g/cm2, pore ratio is between 0.8 0.99 distribution, pore ratio is larger.Eluvia soil cohesion around from top to bottom with the loss of the clay content decreases, and the internal friction Angle are increased
Rainfall condition Intensity is the most commonly used at home and abroad - Duration curve, at the same time considering rainfall [2], rainfall Intensity and rainfall three rainfall factor, and more intuitive to reflect the landslide and the rainfall factor, the relationship between the domestic and foreign researchers have according to the geological conditions of different regions and meteorological conditions Intensity - Duration curve is established.
Table .3 The rainfall intensity and the instability probability Pf the data table rainfall intensity /(mm/h) Pf=50% Pf=80% t2-t1 Rainfall duration t1 /h Rainfall duration t2 /h 20 20.0 21.3 1.30 50 10.3 10.8 0.45 70 8.17 8.50 0.33 100 6.00 6.50 0.50 120 5.30 5.67 0.37 150 5.25 5.58 0.33 According to the random simulation method, considering the uncertainty of geotechnical properties [3] get the I - D with different instability probability curve.
Figure .3 The Pf I - D curve The I - D curve calculation results and data analysis: Mountainous and coastal areas more landslide potential sliding surface of the residual is located in the bottom of the residual sola, safety factor of slope stability under the condition of rainfall and the change of the pore water pressure of the potential sliding surface has the very good corresponding relationship, pore water pressure increases, the safety factor decrease.
Many factors influencing the landslide problem is complex, the main three factors is the terrain, geological and meteorological conditions of [4], this paper lay a foundation for later in-depth and comprehensive study.

The effects of injury, the number of fixated segments and the configuration of the fixator, have demonstrated complex mechanical interactions between the fixator and host spinal segment.
These internal loading mechanisms will affect the behavior of the instrumented spine [3].
We compared the mechanical performance of a spinal pedicle screw system with that of computer simulations using finite element method for validating the finite element model and finding critical design parameters affecting fatigue.
Table 1 Material properties of Pedicle Screw Assembly and UHMWPE Block Part Material Young's Modulus (MPa) Poisson's ratio Compressive yield Strength (MPa) UHMWPE Block Polyethylene 1.11e+3 0.42 - Pedicle Screw Assembly Ti6Al4VELI 1.1e+5 0.33 795 Methods We compared both the experimental result of Pedicle screw assembly and the results of computer simulation by FEM in order to examine the usability of the methodology and to obtain design variables, fatigue yield, available life, and other design variables needed to develop a new model.
[2] Shigley J: Mechanical engineering design (New York, McGraw Hill, 1977)

The ductile deformation behavior of PLA is an important factor for solid-state PLA foam.
The mechanical properties and foaming behavior of PLA and PLA/beeswax composite was examined, with a particular goal of achieving low foam densities.
Results and discussion Mechanical properties of PLA and PLA/beeswax composites Tensile testing was carried out on a GS-QC-Tester tensile testing machine (model GS-1520) with a crosshead speed of 50 mm/min.
Sorption and foaming properties of PLA and PLA/beeswax composites The CO2 saturation results of 3mm PLA and PLA/beeswax specimens at 2500psi and 1500psi are shown in Figure 2 (a) and 2(b).
Tsuji, Poly(lactic Acid): Synthesis, Structures, Properties, Processing, and Applications, John Wiley and Sons, 2010 [5] Y.

In marine seawater, the Copper-Nickel alloys possess excellent anticorrosive properties.
A Cu-Ni-Mn alloy possesses excellent thermal and electrical properties [5-6].
Boric acid maintain the pH of the solution and used as catalyst to improve the quality of deposited material Cu-Ni-Mn and it also affect the compositional and morphological properties of Cu-Ni-Mn ternary alloy.
The Copper-Nickel alloys-Engineering properties and applications INCO, p.12, (1981)
The effect of current density on properties of electrodeposited nanocrystalline nickel.

The reinforced concrete structures can be affected by the carbonation seriously.
The unique cavity contained in the cellulose fiber can store some free water in the cement hydration process, and this part of water will be slowly released to promote the continued hydration of cement, which can compensate the concrete shrinkage and thus improve the microstructure of concrete, the mechanical properties of concrete and the early crack resistance properties.
The bending rigidity of the structure and the mechanical properties of materials are directly related to the section thickness, and reducing the thickness of the second lining can reduce the stiffness of the second lining and distribute the loads with initial supports reasonably in usage.
Thinning the thickness of the second lining is not simply reducing it’s thickness, and the mechanical properties of it’s concrete should be improved at the same time, and that is to increase the strength grade of concrete appropriately.
INFLUENCE FACTORS AND COUNTERMEASURE ABOUT THE DURABILITY OF CONCRETE [J].

The purpose of this research paper is focused on the X40CrMoV5-1 hot work tool steel surface layers improvement properties using high power diode laser.
Remelting of the steel without introducing into liquid molten pool the alloying additions in the form of carbide powders, causes slight increase of properties of surface layer of investigated steel in comparison to its analogical properties obtained through conventional heat treatment, depending on the laser beam power implemented for remelting.
Thanks to the very fast heating up followed by cooling the surface properties obtained, could not be attained with other conventional methods.
Improved abrasion wear resistance, mechanical-, and tribological properties, and also very high resistance to thermal fatigue displayed by these materials, can be obtained in particular by alloying with the carbides particles.
This phenomenon is the reason for the super-fast phase transformations affecting the structural mechanism of forming the surface layers subjected to laser treatment.

Crack phenomenon and causes Many factors will cause cracks of aerated concrete block walls, such as material properties, construction seasons, construction quality, the service conditions, temperature changes, the engineering geology conditions and so on[1-2].
But there are some special properties in the wall with aerated concrete blocks.
But horizontal crack at the junction of walls and beams or floors is more common still because it occur considering two factors, dead load of material and shrinkage of mortar stitch.
The different properties of aerated concrete block and plastering mortar lead to different expansion and shrinkage between aerated concrete block and plastering mortar, which caused cracks of aerated concrete block walls, as shown in figure 6.
Bonding agent is jetted uniformly on the walls by using mechanical pressure.

For all that, the growing number of proteins containing various Ca2+-binding motifs supports the importance of Ca2+, which controls various protein functions by affecting protein stability, enzymatic activity or signal transduction [9].
Audible sound, one of the environmental factors, widely exists in natural world.
It inevitably affects the growth and metabolic behaviors of organism.
As a mechanical wave, audible sound would produce a mechanical stress to E.coli cells, similar to an alternate pull and press forces.
Xi, The effects of alternative stress on the thermodynamic properties of cultured tobacco cells.

Due to the increasing resistance to antifungal medications, an interest towards nanoparticles, especially silver, has been increasing due to their antimicrobial properties.
Nanoparticles of silver with their large surface area have shown profound antibacterial property through “pit” formation, which affects the membrane permeability and leads toalterations in the DNA of the microrganism [5].
However, the addition of any additive components in the PMMA resin can affect its structure and, hence, its mechanical properties.
Shibata et al.[24]explained that the addition of the other material can act as an impurities which reduce in degree of conversion of acrylic resin and increase in residual monomer which can result loss in mechanical properties.
Moreover, the bonding between inorganic substances and the acrylic resin are weak as they lack the chemical bonding.Furthermore, Sodager et al. [25]concluded that the type of the acrylic resin and the concentration of nanoparticles are the deciding factors for the effect of AgNPs on flexuralstrength of PMMA resin.

In order to evaluate the feasibility of 9SiCr alloy tool steel produced by thin slab casting the high temperature mechanical properties of 9SiCr alloy tool steel were investigated by Gleeb-1500 thermal simulator.
Change of High Temperature Properties.
Effect of Austempering Heat Treatment on Microstruture and Mechanical Properties of 9SiCr Steel, Foundry Technology. 7 (2017) 1588-1590
Study on the Relationship between the Factors of Casting Process and the Slab Surface Quality of 9SiCr Steel, Jiangxi Metallurgy. 2 (1982) 78-81
Zhang, et al, High Temperature Mechanical Properties of Continuously cast blooms, Journal of University of Science and Technology Beijing.