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Although the sign and the strength of the Casimir force depend strongly on the properties of the plates, it is found that in the high temperature regime, the Casimir force has a classical limit that does not depend on the properties of the medium separating the plates.
To study the properties of the Casimir force in the low temperature regime (, we need to do some manipulations to (7).
In the low temperature regime, it is smaller by a factor .
Therefore the properties of the medium separating the plates do not affect the Casimir force when the temperature is high enough.
Therefore the sign of Casimir force depends strongly on the properties of the plates.

Many studies [1,2,5,7] have been published over the years for mechanical components, but by far, very limited information on the gear design and analysis has been revealed.
If the accuracy tolerance is acceptable, then we can claim that slope β is not affected by the loading conditions.
Thus, based on the test results, this function can be expressed by the following regressed equation: α=K1×R+K2 for the material properties tested
To further simplify and facilitate the life calculation process for different reversal loading condition (i.e. under different R-ratios), the normalization of the life degrading factor (DF) approach can be applied as shown by equation 15 Degrading Factor (DF)=α(at any R-ratio)/α1 (15) Applying equations 15, the following table (Table 4) show the relationships of the degrading factors (DF) under entire range of different R-ratios from uni-directional to fully reversal bending loads.
Dowling: Mean Stress Effects in Stress-Life and Strain-Life Fatigue, SAE 2004-01-2227 [2] AGMA 908-B89: Geometry Factors for Determining the pitting and Bending Strength of Involute Spur, Helical and Herringbone Gear teeth, AGMA Standard (1997) [3] ISO 6336-3: Calculation of Load Capacity of Spur and Helical Gears, ISO STD. (1996) [4] T.

Flexible and Ecological Reinforced Earth Retaining Wall belongs to flexible retaining wall, which can withstand large ground deformation, differential settlement and the load which can’t be predicted, these features will not only not reduce the structural integrity , but also improve the structural integrity by strengthening the interaction of the entire structure, and it does not produce internal force affecting the stability and the temperature sewing, all of those overcome the shortcomings of easy to crack due to uneven ground of traditional gravity retaining wall. 2.4 The Better Stability Three dimensional Drainage Flexible and Ecological Reinforced Earth Retaining Wall with self-locking structure, by force as a whole, have a good cushioning effect on the impact and good earthquake resistance.
The Main Component 3.1 Reinforced Material Reinforced material choose two-way high-strength polyester warp geogrid with high strength, small tensile strain, good anti-aging properties, small creep deformation, its tensile strength not less than 110kN/m and corresponding to the maximum tensile strain of ≤ 10 % ,the width is 5 meter. 3.2 Ecological Bags The ecological bags is most important component of the Three dimensional Drainage Flexible and Ecological Reinforced Earth Retaining Wall, polypropylene as the main raw material, with anti-UV, anti-aging, anti-acid salts, anti-microbial erosion and other effects.
Try to avoid large-scale construction machinery close to the 1meter range of the ecological bags, small mechanical compaction or artificial compactor can be used within this range , in order to meet the design requirements for the degree of compaction. 4.8 Slope greening Retaining wall construction is completed, Seeding herbaceous plants of tall fescue and zoysiagrass, and cutting liana creeper cuttings density of 4 per bag.
By "Li-zheng geotechnical retaining wall design software " checking, the structure meet the following safety factor : (1) internal stability : (1) The Safety factor of anti - pulling force Fs ≥ 1.5 ; (2) external stability : (1) The Safety factor of anti- slip Fs≥ 1.5 ; ②The Safety factor of against overturning Fs≥ 2.0 ; ( 3 ) foundation stress is greater than the design stress ( 4 ) The Safety factor of overall stability Fs≥ 1.5 . 6 Conclusion By the analyzed and discussed of the new type retaining structures ---Three dimensional Drainage Flexible and Ecological Reinforced Earth Retaining Wall through its advantages, its compositions and its construction key points, we learned the Three dimensional Drainage Flexible and Ecological Reinforced Earth Retaining Wall was a perfect combination of reinforced earth retaining wall and Grass protection, which has full play of the advantages of the two kinds of protection.

Introduction As machinery has become more complex and mankind has demanded greater productivity from each mechanical system.
The supplementing control system by additional vibration symptoms of mechanical defects seems reasonable and economically justified [15].
The performance of accelerometers is affected by measurement errors that are classified into deterministic errors and stochastic errors.
Deterministic errors consist of bias, scale factor and inertial axis misalignment.
Burdzik: Implementation of multidimensional identification of signal characteristics in the analysis of vibration properties of an automotive vehicle’s floor panel, Eksploatacja i Niezawodnosc – Maintenance and Reliability Vol. 16(3) (2014), p. 439–445

Foams containing large cells suffer a reduction in mechanical properties; therefore, an optimal foam contains small, evenly sized, and well distributed bubbles in large numbers.
Foams containing large cells suffer a reduction in mechanical properties; therefore, an optimal foam contains small, evenly sized, and well distributed bubbles in large numbers [1].
Resin viscosity also has a strong affect the nucleation of rotationally moulded foams.
Fig. 5 demonstrates the behaviour of a range of polymers with varying melt flow properties.
It was though that the use of mould pressure to control densification could also remove the careful balancing act of polymer rheology properties needed to create foams in rotational moulding, meaning that higher zero shear viscosity materials with a high melt strength could be explored instead.

Thus, during the processing by an electron beam, significant changes occur in the structural-phase states and in the properties of the material in thin surface layers [8].
Developing in this process of structural rearrangement, structural-phase transformations occur under conditions that are far from thermodynamically equilibrium states, and they allow obtaining modified surface layers with a unique complex of physical and mechanical properties [9].
Fig. 1 – Microhardness of P9, P6M5 and P18 steels surface before and after electron beam processing Structural-phase states of the surface layer of high-speed steels were investigated to determine the structural factors affecting the hardness of high-speed steels.
Microstructure and Tribological Properties of Electrolyte Plasma Nitrided R6M5 High Speed Steel.
Features of the formation of the structure and properties of the surface layer of steel when irradiated by a beam of relativistic electrons // MITOM. 1997. 4.

Tarcosil and nanopowders of other materials are the basis for creating a wide range of new materials which have unique properties and characteristics in some cases [23].
Nanoparticles additive influences on increase of zirconium-containing components which underline heat-resistant material properties.
Kingery, Factors Affecting Thermal Stress Resistance of Ceramic Materials, J.
Mitamura, Synthesis and Mechanical Properties of Alumina-MgO Stabilized Zirconia-Zircon Composite, J.
Nazarenko, Electroexplosive nanopowders: production, properties, application, TSU Ed., Tomsk, 2005

Introduction Because of small proportion, high temperature resistance and corrosion resistance of titanium alloy ,it has a good thermal stability in the following 500 ℃,in addition ,our country has a lot of titanium resources, therefore, titanium alloys have been widely used in aircraft rockets, satellites, tanks, submarines and precise instruments [1,2] However, because some of the specially physical, mechanical properties of titanium alloy, resulting in grinding titanium alloy difficultly, melting point of titanium alloy is up to 1725 ℃, the thermal conductivity is only 1/4 to aluminum, 1/5 to steel, but titanium alloys have high friction coefficient.
In this way, it will produce a large number of grinding heat in the grinding process, but the grinding heat cannot spread rapidly from grinding zone, it leads to have high temperature in grinding zone, then there is grinding burn in work piece, thus it will seriously affect the quality of the surface of the work piece.
factors temperature ( -℃) Angle of nozzle and Horizontal （°） Cold Wind flow （m 3 /h） The weight of pre-grinding （g） The weight after grinding （g） difference （g） 1 30 0 10 801.4 796.7 4.7 2 30 45 8 865.8 862.3 3.5 3 30 90 6 851.3 847.7 3.6 4 60 0 8 746.4 742.7 3.7 5 60 45 6 652.9 649.6 3.3 6 60 90 10 636.4 631.3 5.1 7 90 0 6 681.4 677.6 3.8 8 90 45 10 955.7 950.3 5.4 9 90 90 8 669.4 664.3 5.1 K1j 11.8 12.2 15.2 K2j 12.1 12.2 12.3 K3j 14.3 13.8 10.7 K1j/3 3.93 4.07 5.07 K2j/3 4.03 4.07 4.1 K3j/3 4.77 4.60 3.57 Rj 0.83 0.53 1.5 Table 3 Experimental results (3M241D) No.
factors temperature ( -℃) Angle of nozzle and Horizontal （°） Cold Wind flow （m3/h） The weight of pre-grinding （g） The weight after grinding （g） difference （g） 1 30 0 10 950.4 946.3 4.5 2 30 45 8 670.7 667.1 3.3 3 30 90 6 675.9 672.3 3.4 4 60 0 8 683.1 677.6 4.8 5 60 45 6 823.3 819.5 3.6 6 60 90 10 654.6 649.8 4.8 7 90 0 6 858.5 854.8 3.5 8 90 45 10 775.3 771.4 4.5 9 90 90 8 873.6 869.8 3.8 K1j 11.2 12.8 13.8 K2j 13.2 11.4 11.9 K3j 11.8 12.0 10.5 K1j/3 3.73 4.27 4.6 K2j/3 4.4 3.8 3.97 K3j/3 3.93 4.0 3.5 Rj 0.67 0.47 1.1 Experiment Two Belt type: 577F, 3M241D Air flow: 10 m³/h the angle between nozzle and the horizontal: 90 ° the other is same to the table 1,the results is Fig.2, Fig.3.
Zheng: Annals of the Chinese Mechanical Engineering, Vol. 17 (2006) No.11, pp.1117-1120.

Introduction Diamond, as a functional material, bears the unique properties, such as high thermal conductivity, chemical stability and mechanical strength, large forbidden band gap and high charge mobility.
Now, it is clearly known that doping diamond with some impurities, such as sulfur, boron, phosphorus, can vary some properties of diamond [1-3].
Nitrogen impurities are the most common impurities in diamond crystals, and doping nitrogen impurities in diamond lattice can also significantly affect its optical, mechanical property and thermal stability.
The concentrations of nitrogen in the form of A-center (NA) and C-center (NC) were calculated from the absorption coefficient which were multiplied by converting factor of 16.5 ppm/(cm-1) and 25 ppm/(cm-1) at 1282 cm-1 and 1130 cm-1, respectively , after the spectra decomposed into two individual components using the procedure described in Ref. [7].
ST and SP are atomic sensitivity factors for P2p and N1s spectra, respectively.

But as the coal bed methane is attached to the coal seam and different from the conventional hydrocarbon reservoir in the physical and mechanical properties and in the storage, it determines the particularity of the drilling techniques.
On occasions that position drift is affected seriously by the formation factors, we can use cascade two stabilizers on the bit to stable position and deviation to a great extent.
Solid particles like cuttings and barite make the fluid flow properties go bad resulting into not only breaking the fluid property stability, but also increasing the friction of the circulation system which make the equipments wear prematurely.