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In addition, the high requirement on mechanical property of oscillatory key parts are demanded [10-12].
The factors which can affect the tillage resistance of subsoiler include tillage depth, (whereis maximum longitudinal length of the soil-engaging part of subsoiler, is tillage depth, is named longitudinal/depth ratio), structural shape and dimensions of subsoiler, penetration angle and soil physical properties.
The penetration angle is another important factor which can affect the tillage resistance and mechanical property of subsoiler.
The penetration angle which is either too large or too small can directly affect penetrability of subsoiler and increase the tillage resistance.
Mishra, Characterization of Wear and Metallurgical Properties for Development of Agricultural Grade Steel Suitable in Specific Soil Conditions, Wear, 263(2007) 228-233

Then friction material properties are very important on the output characteristics of TWUSM.
Properties of friction material directly affect motor’s conversion efficiency, service life, running noise, and drive stability, etc.
These properties are the basic requirements for friction material which will be applied to TWUSM.
This is a problem of multi-factor formula design.
Proper content ranges of modified materials were determined to improve the mechanical properties and maintain the tribological properties of EK matrix.

The existence of welding residual stress will reduce fatigue strength and other mechanical properties when the components were servicing.
We also select the largest peak as to experimental point in the weld and heat affected zone of each section.
Deviation of drilling holes, plastic deformation and holes depth are the factors causing the calculation error of blind-hole method, so the authors suggest that the finite element analysis should be used for designing the weldment of Wind-driven generator as reference.
[2] Yi Pei, Yafeng Bao, Muyao Tang: Journal of Mechanical Strength, Vol. 19(1997) No.1, p. 18-21
[6] Xiaoxue Liu, Wei Tong: Mechanical Research & Application, Vol. 20(2007) No.3, p.26-34

The structure and performance of PP membrane are affected by lots of factors especially nucleating agent which can change crystallization behavior of resin, improve the processing and application properties of product [1, 2].
The mechanical properties of the prepared membrane were measured by universal materials testing machine (Kexin, WDW3020, China).
Zhong, Nucleation characteristics of the α/β compounded nucleating agents and their influences on crystallization behavior and mechanical properties of isotactic polypropylene, J.
Xin, Influence of a novel β-nucleating agent on the structure, mechanical properties, and crystallization behavior of isotactic polypropylene, J.
Na, Vibration-induced change of crystal structure in isotactic polypropylene and its improved mechanical properties, J.

the former has transversely isotropic properties, and on the other hand the latter has the quasi-isotropic (QI) properties.
Lumped material properties are used and assumed to be constant.
On the other hand, the effective mechanical properties of the QI CFM layer is calculated considering the material properties of the UD layer obtained by the SCFM approach for the same Vf as the QI layer [15].
Different local material orientation is employed for the UD and CFM layers in order to reflect the mechanical properties correctly.
On the properties of quasi-isotropic laminates.

There are many parameters that affect the stresses in the joints, including overlap length[2-3], properties of adherend and adhesive[4-5], and thickness of adhesive and adherend[6-7].
Physical and mechanical properties of composites was given in Table 1.
Table 1 Properties of adherend material.
Adherend Density Vf Mechanical properties Carbon/Epoxy 1.56 g/cm3 48±5 % E1=65 GPa E2=65 GPa XT=634 MPa YT=634 MPa S=55 MPa Table 2 Adhesives and their basic type.
The state of stress in the adhesive layer of lap joint is very complex, determined by many factors, including configuration of the joint, and properties of both adhesive and adherend.

Drought is an important factor that affects economic and social development in our province.
The contradiction between the water resources supply and demand become more prominent, drought has become an important factor that affects the economic and social development in Guizhou.
Agricultural drought relief emergency water project includes electro-mechanical well and flow drought relief device, and so on.
In terms of drought analysis and prediction: mainly analyze the comprehensive influence result according to various factors such as the soil moisture content and comprehensive rainfall data in the database collected by the monitoring system and surface runoff, and multiple models and methods to soil moisture short-term forecast.
The disasters’ development is complex, to really grasp the nature laws, and avoid the harm of disasters, reduce the loss of property, humanity should make long-term unremitting efforts to explore and research.

The other physical properties, such as Young's modulus E, Poisson's ratio ν, specific heat C, material density ρ, thermal conductivity κ and thermal expansion coefficient λ, of OFHC copper and diamond are all listed in Table 1.
Table. 1 Physical properties of OFHC copper and diamond tool E [GPa] ν C [J/kg/ºC] ρ[kg/m 3] κ[W/m/ºC] λ[10-6/ºC] OFHC copper 128 0.3 385.5 8960 393.6 16.5 Diamond 1050 0.1 420 3520 1000 2.5 Heat transfer.
Temperature distribution properties indicate the extrusion effects of tool edge on machined surface and chip root are extremely intense.
Conclusions In present work, a FE cutting model is developed to emulate the diamond cutting process, with which the cutting temperature can be predict so as to analyze the factors influencing on it.
The simulated results indicate that, in diamond turning, the heat converting from plastic work is the primary source affecting the distribution shape of cutting temperature and the frictional heat is in the second.

These advanced materials offer superior properties compared to the monolithic constituents; primarily, improved specific strength and stiffness compared to metals and improved impact and fatigue resistance when compared to composite materials.
The use of these advanced materials is currently restricted to specialised applications where the superior properties justify the high cost of manufacturing.
Reyes and Cantwell [1] investigated the mechanical properties of an FML system based on a glass fibre reinforced thermoplastic and found that the strength and elastic modulus of the system followed the rule of mixtures with the strength increasing and modulus decreasing with the composite volume fraction.
This method was used because it does not adversely affect the properties of the materials.
Cantwell, The mechanical properties of fibre-metal laminates based on glass fibre reinforced polypropylene, Composites Science and Technology, 60 (2000) 1085-1094

The factors influencing machining accuracy were pointed out from the viewpoint of system.
The NAM-820 ultra-precision CNC lathes uses the ultra precision aerostatic spindle which wins the first prize in National Science and Technology Progress Award with independent intellectual property rights to ensure the spindle rotation accuracy <0.05µm.
Factors effects machining accuracy of ultra-precision machine tool Precision machine tools mainly composed by the mechanical system, control system and management system which influence each other to ensure the accuracy of precision machine tool processing.
The mechanical system is the body structure of ultra-precision machine tool and its performance is the fundamental guarantee of the processing precision.
CHINA MECHANICAL ENGINEERING, 1999,10(5), p. 570-576