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Local eddy current and viscous dissipation of stream will cause the temperature difference of cavity, which led to the shift of resonant frequency affecting the stability of sensor.
Wet steam problems, to a great extent, affect the safe and economic operation of the steam turbine.
Table 1 The material parameter of cavity Material Invar(4J32) Red Cooper(Cu) Density(kg/m3) 8100 83000 Thermal Expansion Coefficient(℃-1) 1.06×10-6 1.8×10-5 Young's Modulus (pa) 1.34×1011 1.1×1011 Poisson's Ratio 0.3 0.34 Thermal Conductivity (w/m·℃) 13.9 401 Specific Heat (J/kg·℃) 512 390 Analysis of calculation results The result of cavity body thermal deformation under different conditions (a) The x=0 section pressure distribution of flow field (b) The x=0 section temperate distribution of flow field (c) The cloud temperature distribution of resonant cavity (d) The total deformation nephogram of resonant cavity Fig.3 P=5KPa,Ma=0.3,The calculation results of fluid-solid coupled Fig.3 is the fluid-structure coupling calculation results of the condition, p=5Kpa, Ma=0.3.The effective part of inner surface of cavity size is the key factor of altering cavity resonance frequency.Tab.2, the thermal deformation calculation results of inner effective surface of cavity
Steam wetness Y is related with the thermal properties and dielectric properties of two phase wet-vapor liquid and relative deviation of resonance frequency of cavity ().
Theoretical and experimental research on resonant cavity dielectric perturbation technique to measure steam humidity [D].Baoding, School of energy power and mechanical engineering, north China electric power university,2012.

In a molecular dynamics (MD) simulation, grain size and crystal orientation can be chosen, and their effects on the mechanical properties of nano-crystalline materials can be evaluated clearly.
Introduction In recent years, various polycrystalline metals with nano-scaled grains have been developed, and their detailed properties are being evaluated[1-5].
However, the effects of grain size in the very small grain range on the mechanical properties, especially fracture mechanism, are not fully clarified.
However, we think that the indicated errors do not significantly affect the crack growth behavior.
Therefore, the crack opening and extension are affected by the grain size.

Friction Type Monorail Crane Driving Design and Analysis Based on ANSYS Weiwei Tua, Han Lib School of mechanical Engineering Anhui University of Science and Technology Huainan, China aamandatww@126.com,b439600579@qq.com Keywords: Physical design,Ansys ,Drive,The finite element Abstract.
Fig. 2 Meshing of Connection plate and Wheel bracket Motor locate the connection plate and the wheel's decisive factor is the material strength, using material directly affect the overall strength whether meet the requirements.
High strength, especially in normalizing or normalized and tempered condition have higher comprehensive mechanical properties. [2] The ANSYS Structure analysis In accordance with the due to the drive wheels need to be large enough radial force, thus the motor and wheel is the main stress components, the main effect of the hydraulic cylinder so provided by the fluid pressure in motor positioning connecting plate, and then through the motor output shaft is passed to the wheel, so the analysis process, motor positioning connection plate and the wheel requires the finite element analysis.
Beijing: higher education press, 2006 [2] Cheng Daxian: Mechanical design manual [K].
Beijing: mechanical industry publishing house, 2010 [4]Wang Ping ,Zhang Yunjie: SolidWorks2009[M].Tsinghua university press,2009,12 [5] Xie QiKai,Wang Kaisong: Based on the ANSYS modal analysis of shearer picks shape [J].

They are operated under an acidic, humid and high temperature conditions for long time so the chemical and mechanical properties of gaskets are crucial to the electro-chemical performance of fuel cell.
That may be due to the concentration of HF acid affecting the aging of silicone rubbers.
This indicated that the exposure time and exposure temperature are both the key factors affecting the degradation of silicone rubbers.
Lee, Assessment of mechanical properties of fluoroelastomer and EPDM in a simulated PEM fuel cell environment by microindentation test, Mater.
Lee, Microindentation Test for Assessing the Mechanical Properties of Silicone Rubber Exposed to a Simulated Polymer Electrolyte Membrane Fuel Cell Environment, J.

Introduction Due to the rapid development of automobile and aircraft industry, magnesium and its alloys have drawn global attention because of the good properties, such as low density, high specific strength, excellent damping capacity and good electromagnetic shield abilities.
While most papers state the thermal distributes of molten pool, the microstructure of as-cast strips and their mechanical properties after rolling.
Few detailed the factors in molten zone and their influences on microstructure.
The initial microstructure generated during casing process will affect the microstructure and properties of the after strips.

γLF γSF θc γSL Figure 1 Wetting is affected by large number of factors including substrate surface roughness, flux, temperature, atmosphere, liquid properties and trace elements.
In lead free solder systems, wettability becomes a concern due to the important effect to the solder joint properties.
It gives good mechanical interlocking between the two interfaces [1].
,Jing,H.Y. & Wei,J., Effect of Ni-Coated Carbon Nanotubes on the Microstructure and Properties of Sn-Ag-Cu Solder, Electronic Components and Technology Conference (2010) 979-984

The fundamental properties of IPMC as an actuator and sensor are explained as follows.
The level of generated voltage depends on the amount of mechanical variation.
Since IPMC materials have both sensor and actuation properties, one IPMC is enough for the sensing while it is actuating.
Although both of actuator, and sensor phenomena are known for a long time, there are only very few attempts to make use of the sensor and actuator properties of an IPMC simultaneously.
Without that consideration, the output voltage for sensor is affected by the input voltage for actuation.

Decellularized native tendon extracellular matrix (ECM), which contains specific bioactive factors and a large number of collagen fibers, seeded with bone marrow-derived stem cells (BMSCs) has been found to promote tendon neogenesis.
However, tendon repair remains to be a challenge in clinic, because of the poor intrinsic healing effect, such as high risk of injury recurrence, poor mechanical properties, limited long term function recovery [1, 2].
In view of the two cues, growth factors and matrix protein, decellularized native tendon ECM gained great attention recently, which has been highly considered as a candidate scaffold in tendon tissue engineering [5-7].
On one hand, native tendon ECM harbors specific molecules secreted by the resident cells of tendon, equivalent to the role of growth factors.
However, how the arrangement of collagen fibers affects the differentiation of BMSCs was unclear.

Because it is known that the direction of void growth is different due to applied stress and/or strain distribution in general, the void growth law must have the anisotropic property.
Fig.3 Relation between damage tensor and local strain for shape factor L2/L1 = 1.
Figures 4 and 5 show the results of shape factor L2/L1=4/3 and 3/2, respectively.
Fig. 5 Relation between damage tensor and local strain for shape factor L2/L1 = 3/2.
Conclusion The validity of the proposed anisotropic void growth model was investigated under the uniaxial tensile test of perforated sheets with several different shape factors and it was found that the proposed model can well describe the anisotropic development of void shape under uniaxial tension for both two materials SUS304 and A5052.

The properties of HAZ would not be much affected by the weld repair and are assumed to be the same as before.
The life can be extended by a factor of 1.84 at a small cost of weld repair.
The material properties of HAZ may govern the life of the weldments.
The properties of the constituent materials of the weldment at 640 oC are taken from the previous literature[9, 10].
It is thus suggested that the attention should be paid to the improvement of HAZ properties in the repair weld [11].