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This is a very important reason why car`s interior acoustical performance is an invisible but significant factor for the vehicle comfort characteristics.
While the textiles used in the engine and trunk areas have a more functional value, the textiles in the passenger compartment require very good visual properties.
It defines the number of needle penetrations per unit area (punches/cm²), directly affects fabric properties, and dimensions [14].
In addition, there is a demand for textiles with good visual properties of the surface in the automotive industry.
Mechanical bonding.

Polymer electrolytes have the advantages of their excellent properties such as relatively high ionic conductivity, good stability and easy fabrication.
Among all the polymer electrolyte materials, poly(ethylene oxide) (PEO) has been intensively investigated as solid polymer electrolyte due to its mechanical and chemical stability and polar moiety that can act as excellent solvent for dissolving metal salts [7].
Polymer blends offer a way to produce new materials by using polymers existed and their physical properties are devised by changing the compositions of the polymer blends.
But further addition of PEG to the composite PEO network up to 1.0:1.0 weight ratio lowered the stickiness of the composite polymer blend electrolyte and might affect the mechanical strength and conductivity enhancement factor from the weak interaction of ethanol molecule with PEO network as shown in previous studies [12-15] and thus resulted in a decrease in conductivity.
Kang, Effects of compositions on properties of PEO-KI-I2 salts polymer electrolytes for DSSC, Solid State Ionics, 177 (2006) 1091-1097

Compared to a film of TiO2 nanoparticles, nanotubes have been shown to provide directionality benefits in oriented arrays through improvements in unique electronic properties, such as separation of charges, high electron mobility, low quantum confinement effects, and high mechanical strength.
They found that the presence of W6+ species and cation vacancies affects lattice cell dimensions and was a main factor in rationalizing the significant increase of the c cell parameter and lower effect in a/b ones.
In summary, heat treatment temperature, time, and loading amount are all crucial factors in preparation of WO3-TiO2 nanocomposite photocatalyst via hydrothermal technique.
They concluded that reducing the probability of charge carrier recombination rate is one the most significant factors that determine the photodegradation of dye using the WOx-TiO2 nanocomposite photocatalyst.
Kim, Electrochromic properties of porous WO3–TiO2 core–shell nanowires.

Then, the morphology, water uptake and retention abilities, in vitro degradation property in the simulated medium, cytotoxicity of this novel γ-PGA/β-TCP composite is investigated.
Introduction Currently, composites of polymers and ceramics are being developed with the goals of increasing the scaffold mechanical stability and improving tissue interactions [1].
Its physical factors are greatly affected by humidity and have high hydrophilic property and excellent water-binding capacity.

precipitation and coarsening kinetics) in these alloys [3-5], the description of mechanical response has been limited to yield strength and creep properties.
This aspect of the mechanical response of Al-Sc alloys has not been clearly described in the literature and deserves a systematic examination.
At higher stress levels a number of relaxation processes, e.g. formation and glide of prismatic dislocation loops [10], become potentially active thereby affecting the average storage rate of dislocations due to the particles.
Conclusions The mechanical response of a model Al-2.8Mg-0.16Sc alloy for different stages of aging were examined by means of tensile tests performed at 77K.
A robust process model to couple the microstructure evolution and the mechanical response of the alloy is being developed to optimize the parameters for such a complex aging treatment.

This article pays attention to the processes that cause wear of individual components of equipment, which in turn can significantly affect the cost and quality of the concrete.
Physical and chemical properties of concrete mixtures from the point of view of interaction with production devices Concrete is still very popular material applied in building constructions.
All technical properties of concrete depends on the technical characteristics of the mortar.
The typical rheological properties of the mortar are descripted in the literature [1, 2, 8] by: - fluidity, - the susceptibility to deformation under the effect of force, - while maintaining their homogeneity.
Triboengineering properties of austenitic manganese steels and cast irons under the conditions of sliding friction, Materials Science (Springer) – 2005, vol.41, No 5.- P.624 –630

Obtained characteristic is not affected by the physical state of the sample.
However, these methods have not obtained an international consensus, and due to the differences of operators, experimental materials, environment and other factors, the experimental process and results cannot be standardized recognition.
The halloysite nanotube effects on workability, mechanical properties, permeability and microstructure of cementitious mortar, J.
Effects of Environmental Factors on Concrete Carbonation Depth and Compressive Strength, J.
The effects of grinding on the properties of portland-limestone cement.

The depth-thickness ratio limit can improve mechanical performance by disposing section steel, it increase the stability of vertical bearing capacity when web pressed , improve failure patterns【2】, have huge potential for strengthen or regulating structural capacity. 1 Structure arrangement The various of constructional element’s type and size cause confusion in design and building that Increase the construction cost and the cycle.
Because of displacement of the rigid body rotation of the lower floors will affect displacement calculation of the upper floors of the layer, so how to eliminate rigid rotational displacement influence to floor and choose appropriate performance parameters as the shear wall structure of performance index in actual work of engineering design is the the problem need to solve in earthquake-resistant design.
Lateral drift mode of the shear wall structure is taking short-leg shear walls section as the non-equal cantilever rods, its moment of inertia computation is often to be inaccurate, we should consider the various factors, which can make calculation accurate
（3）With axial compression ratio of short leg shear walls change, axial stiffness will change too, also the shear rigidity ,the calculation of the bearing capacities should consider the influence of above 3 factors.
Simulative analysis on the static elasto-plastic property of shot-leg shear wall [J].

As shown in Figure 1 to establish the spray cooling model, in order to facilitate the analysis, the spray cooling model is simplified as follow: Fig.1 The model of jet cooling Fig.2 The affect of water density to heat transfer coefficient The flow of steam in steam film is laminar flow ； The physical properties of steam in film are constant and do not change with the temperature； The steam temperature near the cutting area is same to the high-temperature wall ，and the steam temperature in contact with the liquid film is saturated temperature； The fogdrop density is small enough not to influence each other； The fogdrop penetrates the liquid and steam film at the spead of , and maintains the fogdrop as a ball in the course of the move。
So we need to build experimental platform such as: Simulation of the materials generating cutting heat continuously in practice cutting, feeding heat to one end of the test sample, cooling the other end of the test sample with different water density in cryogenic gas atomization jet cooling, and we should minimize the impact of environmental factors as far as possible , check the changes of the temperature real-timely and transmit it to the Data Acquisition Instrument.
There are many factors impact to the spray cooling effect, we mainly consider the amount of water dose achieving the best cooling effect under different temperature of the test sample surface.
Acknowledgements This work was supported by the Natural Science Foundation of Jiangsu Province (No. 50845064) References [1] Jialong Ren: Chinese Journal of Mechanical Engineering.
Vol. 15, No.1, 40-42 (2002) (In Chinese ) [2] Hongjun Xu, Yucan Fu, FanghongSun．A basic study on heat affect mechanism and enhancing heat transfer in Contact Zone in efficient Grinding ．Science in China(Series E)，2002，32 (3) ：297-307 [3] Deb S, Yao S C, analysis on Film Boling Heat Transfer of Impacting Spray [J] .Int J Heat Mass Transfer 1989, 32(11): 2099～2112 [4] MeiGuohui MengHongji WuRongyang Analysis of spray cooling heat transfer coefficient on high temperature surface ENERGY FOR METALLURGICAL INDUSTRY Vo123, No.6,2004 18-23 [5] Liu L and Yao S C, Heat Transfer Analysis of Droplet Flow Impining on a Hot Surface, Heat Transfer 1982, 4, Hemisphere Publishing Co. 1982 (6)

Among numerous influence factors affecting the stability of rock excavation, in-situ stress state is the most basic and essential one. [2] Aiming at reasonable mining design and construction of mine wells, from the standpoint of primary rock stress, the mechanism of rock burst was analyzed and more effective protect measurements were proposed.
The in-situ stress inversion progress is divided into two steps: (1) through the further study of geologic structure of survey region and using numerical stimulation to analyze network samples of software components, numerical model of 3D in-situ stress back analysis is established with FLAC 3D software, and the boundary conditions of the model should be constantly adjusted to obtain proper parameters of training samples; (2) neural network is involved in the construction of parameters with the inversion target of stress imposed conditions and material properties, BP neural network is applied to build model corresponding to parameters obtained before, and then the parameters should be constantly modified to optimize BP network and enhance the accuracy of prediction .
FLAC is a general-purpose code that can simulate a full range of nonlinear static & dynamic mechanical problems, with coupled fluid flow, flued flow, heat flow and structural interaction.
(a) Diagram of Fault Numerical Model (b) Diagram of In-situ Stress Measuring-point Positions During the calculation of numerical stimulation, four factors should be considered, namely lateral force coefficients, material parameters, elastic modulus E and Poisson's ratio μ.