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Comparable to the mechanical emulsions, the ultrasound emulsions had longer stable time.
However, compared to liquid fuels such as diesel and gasoline, bio-oil’s fuel properties have some disadvantages, such as low heating value, high oxygen content, high water content, acidity and instability, which limit its application as high-grade fuels [3].
The surface tension of emulsions via HLB values under different mechanical speeds are shown in Fig.8.
They were lower than mechanical emulsification and fluctuated around 28.7 mN/m.
Surface tension and droplet size distribution were two important factors which affected the stability of the emulsions.

Further research in material flow condition in precision forging gear process and effective control of the influence law of the key factors on forming can provide the basis for the technology optimization and mould design [1-2].
Combined with the actual production and finite element analysis program deform, and of blank high aspect ratio for optimization design variables, through the forming force, dynamic recrystallization, mould wear of multiple criteria forging process parameters of optimization, which can improve the utilization ratio of material and the mechanical properties of the gear parts.
Using Archard wear model predicts that of wear value in die forming process, and the expression is : Where: W-wear depth; P-pressure of mould surface; V-sliding speed; a, b and c -standard constants, a, b take 1 and c take 2; K-the constant related to the material properties, take 2×10-6; H-the die initial hardness
With the temperature of surface mould increases, the surface hardness and strength are decline, which affects the mold service life.
Although slightly bigger mould wear, but it gets good mechanical properties.

Passive Strain Transfer Analysis of Wireless SAW Torque Sensor Lijiu Wang 1, a *, Yuntao Zhang 2,b and Xipeng Li3,c 1 Key laboratory of Fundamental Science for Advanced Machining, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081,China 2 Key laboratory of Fundamental Science for Advanced Machining, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081,China 3 Key laboratory of Fundamental Science for Advanced Machining, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081,China awanglijiu@bit.edu.cn, b176304129@qq.com, clixipeng2008@163.com Keywords: Surface Acoustic Wave , FEA, strain transfer, passive wireless Abstract.
Torque measurement based on the SAW technology has advantages of high measuring accuracy, fast response and passive wireless property, overcoming disadvantages of strain gauge measurement, grating measurement, etc.
There are many factors that affect the strain transfer.
By studying the relationship between these factors and strain transfer, we will provide a theoretical basis for optimizing the design of sensor structure.

Elastic modulus and mechanical strength are factors influencing the load distribution between a load-bearing bone implant and natural tissue.
Various elements are added into the CoCr alloys to improve their mechanical properties.
This limitation was overcome by the introduction of titanium and it alloys due to their excellent mechanical and biocompatibility properties.
Dąbrowski, “Modification of mechanical properties of sintered implant materials on the base of Co–Cr–Mo alloy,” J.
Niinomi, “Mechanical properties of biomedical titanium alloys,” Mater.

Several relations for calculating these two factors are shown in Table1.
Table 1: Bearing capacity factors Investigators Mayerhof [2] Hansen [3] Vesic [4] Simulation of Bearing Capacity of Foundation on Granular Soils Material Properties.
The test material properties are given in Table 2.
Table 2: Properties of sand sample Property Values Cohesion () 0 kPa Internal angle of friction () 33.1o Maximum dry unit weight () 16.6 kN/m3 Optimum moisture content () 7.0% Simulations.
The value of bearing capacity factors are obtained from Table 1.

The formation of shear bands is an unstable phenomenon that is greatly affected by the initial imperfection.
In this model, on the other hand, the temperature or the strain rate also affects the yield behavior considerably.
The mechanical properties of those materials are greatly different from those of crystalline metals, whose elementary process comes from the dislocation movement.
This model also implies that the strain rate affects the fracture behavior and the stress–strain relationship.
Yishikawa, Journal of the Japan Society of Mechanical Engineers. 79-808 (2013) 1807-1817 (in Japanese)

Fabrication of Ultrahydrophobic ZnO by Vapor Phase Transport Zhijun Xi1, a Gang Li2, b,* Liming Lu 2, c 1School of Mechanical and Electrical Engineering, Xinyu University, Xinyu 338004, China 2School of Mechanical and Electrical Engineering, East China Jiaotong University, Nanchang 330013, China axyxzj2000@163.com, bligang0794@163.com, cluliming@mail.china.com * Author to whom correspondence should be addressed Keywords: Ultrahydrophobicity, ZnO, Vapor phase transport, Wettability, Bearing lubrication Abstract.
The surface structural properties of as-synthesized ZnO film was characterized using scanning electron micrograph (SEM).
Since the surface energy is an intrinsic property of materials, wettability is usually enhanced by the increase of surface roughness, especially by fractal structures [3].
The results showed that such a lotus-like structure with micro and nano-papillae in the film, which was strongly affected the contact angle and the rolling angle.
Ye and L.Cai: Chinese Journal of mechanical engineering Vol. 21 (2008), p. 77 [10] R.

As long as the known material properties, loading, local stress, and then select the appropriate fatigue damage model can predict the fatigue life estimation.
This selection of a type six-cylinder car engine crankshaft for the study, the following steps to estimate its fatigue life: (1) by using standard samples and experimental research Crankshaft 48MnV arc spray coating with 3Cr13 mechanical properties and fatigue behavior of fatigue-related parameters obtained and the fatigue life correction factor of remanufacture; (2) Loads, connecting rod crankshaft neck suffered by, are obtained from multi-body dynamics simulation of crankshaft, which are the crankshaft of finite element analysis of force boundary conditions.
Table 4 remanufactured crankshaft fatigue life results after Damage model Uniaxial Multi-axis S-N Normal strain SWT - Bannantine Shear strain Fatemi-Socie life 1.96×1013 2.11×1013 85×1013 1.30×1013 3.62×1012 New Crankshaft Engine Testing Crankshaft cane fatigue test Fig. 5 Process of crankshaft test Crankshaft fatigue test Crankshaft fatigue strength depends not only on manufacturing materials, while also being rough machining processing, heat treatment methods and many other factors.
This can be worked out when the survival rate of 50% safety factor is: (4) Survival rate of 99.9%, the safety factor is: (5) Where K is the standard deviation of correction factor, this test take K = 1.051.
Chinese Journal of Mechanical Engineering,2006,19(2):307-311 [2] Baumel Jr.

Its characteristic is beautiful appearance, good anticorrosive property, good heat resistance, good tensile properties.
Non-stick Coating Properties Not Sticky.
Non-stick coating has excellent heat resistance and low temperature resistant properties.
Almost not affected by drugs, can protect the parts from any kind of chemical corrosion.
Mechanical Industry Press, 2011.In Chinese

Temperature is important technological parameter of production that affects the structure and quality of castings.
Mechanical properties at elevated temperatures are also important; where at low levels in the alloy could occur during braking shrinkage cracking casting [7-9].
Mura, Thermal factors of die casting and their impact on the service life of moulds and the quality of castings, Acta Polytechnica Hungarica 10/3 (2013) 65-78
Mura, Impact of technological factors on dosing of metal at die-casting, Advanced Materials Research 801 (2013) 143-149
Novák-Marcinčin, Influence of technological parameters of die casting on qualitative properties of castings, Manufacturing engineering and technology 1 (2010) 3-6