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The characteristics of the medium in terms of its physical, mechanical and physicochemical properties may be of a wide range [1–3].
The latter, in addition to the force factors, is also determined by the boundary conditions.
for natural values of the material factors Steel Grade 45 takes the form:
Vibrational centrifugal processing of parts involves a complex combination of mechanical, physical, and chemical phenomena that significantly affect the condition of the surface layer, and surface defects influence the mechanical and physical properties of materials.
Similarly, but with a weaker influence on mechanical properties, the size of subgrains also plays a role.

In this case the ME effect characteristics depend on magnetic, electric, and elastic properties of the structure [2].
This work is aimed on investigation of the temperature characteristics of resonant ME effects in bilayer structures containing the layers of single-crystal langatate (LGT) La3Ga5.5Ta0.5O14, lead zirconate titanate ceramics (PZT) PbZr0.52Ti0.48O3, amorphous magnetic alloy (Metglas 2605S3A), and nickel (Ni) in order to determine the factors which affect temperature stability of the structures.
Temperature dependence of mechanical quality factor for ME structures.
The LGT-based structures have mechanical quality factors up to ~103 at low temperature, but Q falls down by several times with temperature growth.
The PZT-based structures have nearly constant mechanical quality factor in the 200-380 K range, their ME coefficient depends weakly on the temperature.

In addition to the above mentioned changes, elastic constants are also significantly affected by temperature.
Using the resonance frequency, for a known mass and dimensions of the specimen, elastic properties can be determined with the help of relevant frequency equations.
Experimental Dynamic elastic constants and internal friction properties of IN718 and Haynes 214 super alloys were evaluated as a function of temperature.
In addition to the elastic constants, the IET method allows to calculate internal friction properties.
Change of these properties attributed to the minor coarsening of intermetallic γ” Ni3(Al, Nb) precipitation may take place up to 650°C, which is very close to the aging temperature [6].

Finite element analysis of the mechanical behaviour of the different cemented hip femoral prostheses M.
Some studies have analysed factors like stem geometry, cement material, surgical techniques, which may directly or indirectly influence the performance of the cemented arthroplasty [1].
The material properties adopted were specified in terms of Young’s modulus and Poisson’s ratio for the implants and all associated components (Table 1).
Material properties used for the Table 2.
The obtained results lead to the following conclusions: - The stress values in the cement and the bone femur are affected by the material, design and shape of the femoral stem.

Grinding wheel wear, grinding temperature, and vibration are main factors affecting job quality and machining efficiency.
In grinding process, primary effect factors of grinding force are grinding depth and feed rate, and the grinding depth is variable on CNC tool grinder.
In Fig.4, E, EC and ∆u are grinding force error, error change rate and controlled value, respectively. ke, kec are quantizing factors, while ku is scale factor.
Force response shows that the dynamic properties are good and the force will reach steady state in 1~2 s when grinding depth changes suddenly.
Force response also shows good dynamic properties.

In addition, such factors as the cost were taken into account, separation method is necessary carried out in mice for acute studies of patch-clamp technique[3].
Which has played an important role in the drug and physical factors of depth study on the cerebral cortex neurons ion channels and signal transduction mechanism and has important value.
But inward currents are seen in a very short time of the beginning of stimulation, which is showed rapid activation and fast inactivation properties.
Transient outward potassium current shows relatively fast activation and fast inactivation properties.
This shows that acute isolation method has the properties of simple and fast, easy to operate.

In this study, treated palm oil fuel ash (POFA) was used as substitute material in producing porcelain ceramic with improved mechanical properties.
The proposed work would aid in resolving reducing environmental problems caused by palm oil waste, reducing the production cost of porcelain ceramic and increases the mechanical properties of porcelain body produced.
The mould pressure and bending strength of porcelain body produced with POFA substituting quartz content is measured to provide better understanding on the mechanical properties of the product.
These oxides serves as fluxing agents that strengthens the mechanical properties of the porcelain.
However, Carty and Senapati [15], claims that, mould pressure is not the only factor affecting the bending strength.

Material is easy to attach scraps and to generate hardening phenomenon during manufacturing processes, simultaneously the tool life will shorten greatly and drilled quality like surface roughness will also be affected.
Table 1 Experimental parameters Parameters Conditions Materials Mar-M247 Haynes-230 Inconel-718 Feed rate (mm/min) 100 125 150 Speed (rpm) 3600 4800 6000 Experimental material properties Ni-based superalloys mostly applied in military and aerospace industries; major application includes aerospace motor, steam turbine machine, high temperature heat treatment equipment, environmental protection incinerated machine, chemical industrial equipment, airplane turbine leaf, missile engine, nuclear energy generator parts and others thermostable, Bears dives changes equipment [1].
The chemical and mechanical properties [2] are shown in Table 2 and 3: Table 2 Chemical components Alloy Nickel base alloy Material Haynes 230 Mar-M247 Inconel 718 Composition WT(%) WT(%) WT(%) Cr Co Mo W Ti Al Fe C Si Ta Hf La B Nb S 22 5< 2 14 - 0.3 3< 0.1< 0.4< - - 0.02 0.015< - - 8.25 10 0.7 10 1 5.5 0.5 0.15 - 3.3 1.5 - - - - 17~21 1< 2.8~3.3 10 0.65~1.15 0.2~0.8 17 0.08< 0.35< - - - 0.006< 4.75~5.25 0.002< Ni ~57 ~59 50~55 Table 3 MAR-M247, Inconel-718, Haynes-230 mechanical properties Properties (room temp) Value MAR-247 Inconel-718 Haynes-230 Ultimate Strength (MPa) 965 1375 860 Yield Strength (MPa) 815 1100 390 Elastic Modulus (GPa) 205 － 211 Hardness (HRC) 38 22 12 Results and Discussion Bush length comparisons after drilling This study tries to explore friction drilling using three different materials such as MAR-M247, Inconel-718, Haynes-230 under different drilling condition spindle speed
From above three results that we can see that different spindle speed, feed rate could have significant impacts on the strength and mechanical property of Ni-based superalloys after thermal friction drilling.
Figure 8 Comparison of simulation and real friction drilling result (Haynes-230) Conclusions This study applied thermal friction drilling to conduct experiments selecting three materials such as Mar-M247, Haynes-230 and Inconel-718 Ni-based superalloys using different spindle speeds and feed rates to form a bush length of workpiece and obtain hole surface roughness , axial force, and drill wear to see the different features, from the result of the experiment shows that material strength and mechanical features are the most significant factors and the conclusion as follows: 1.Inconel-718 is a high strength material, so the destructive and yield strength is the highest of three materials.

That automobile steering system are designed to suitable or not have a direct impact on vehicle safety, handling stability and driving comfort.The rotary valve of hydraulic power assisted steering system is one of the key components which affects the automotive steering performance.
Design a reasonable spool valve in size can allow the car to get good properties .
No matter HPS or EHPS rely on the rotary valve's properties mainly.
(2)Practice has proved that through the production and use of this method to design rotary valve ,it's sensitivity properties coincide with the actual sensitivity curve higher than by the traditional method (3)The method used for automobile valve to simulate the design, not only improved the precision of the design and shorten the design cycle, but also reduce production costs.
[2] N.F.Zhang:Drive System Technique,Vol.1(2007),pp.9-13 [3] N.F.Zhang:Practical examples of mechanical design and programming.

Thus, it is crucial that RCS should have proper mechanical properties to provide the cores made from it have enough strength to prevent core crack during the casting process.
Some researches studied relevant factors affecting to quality and improve properties of RCS.
There were 7 factors of interest in the experiment.
Type and properties of sand and resin under study.
Factors used in the CCD and their levels.