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the relative weights ratio distribution wi/wj Equal importance Weak importance of one over another Essential or strong importance Demonstrated importance Absolute importance Intermediate values between the two adjacent judgement aij 1 3 5 7 9 2, 4, 6, 8 Optimization strategy base on the grey rational grade The grey rational grade is a method which can analyzes rational factors correlation or scalarization regional innovation in the grey system theory.
The weighs factors approaches scale according to develop extend resemble and dissimilarity in the person of relations between factors, providing information with system identity, forecast, decision, control.
The rational grade describes dynamic status similar degree between events, factors[13-15].
Fig.1 Auto panel three-dimension model Simulation forming Set up finite element model The St1405 material is investigated in this work which the property is listed in Table1.
Batoz, et al: International Journal of Mechanical Sciences Vol. 43 (2001), p. 2407-2434 [6] N.M.

It has excellent adhesion properties, strength, chemical/corrosion resistance and low shrinkage [5].
Figure 2.3 Hot water immersion adhesion testing is often carried out on epoxy coatings to test their adhesion properties.
This is due to its excellent properties, such as good adhesion properties, resistance to moisture absorption, and good mechanical and thermal properties.
Prior studies have shown that most of these properties are compromised.
Hoftyzer, Properties of Polymers - Their Estimation and Correlation with Chemical Structure, second edition, Elsevier Scientific Publishing Company, 1976

Introduction The influence factors of size effect.
Fly ash is levelⅠ, whose property parameter is also shown in table 2.
Acknowledgment The author would like to thank the Research Project on the Connecting Mechanical Properties of Components and Parts and Construction Technology of the Prefabricated Maintenance System (2012BAJ16B04-03) for the financial support.
Experimental study on size effect of compressive strength and Deformation properties of large size fly ash concrete.
The properties of concrete.

The roughness of asphalt pavement is bound to a certain degree of change under car loads and all kinds of environment factors in the long process of the airfield runway on highway being used.
Lots of people are consistent with the definition of the American Society of Testing and Materials (ASTM), the roughness is a vertical deviation of pavement surface which relative to the ideal plane and this kind of deviation will affect the dynamic characteristics of vehicle, driving quality, dynamic load and drainage.
Planes(cars, similarly hereinafter) will generate additional vibration effect, this effect will not only cause the plane's turbulence, affect driving smooth(even affect the instrument in extreme cases) and passengers comfort., but also the additional vibration effect of the plane will impact on the pavement and increase the damage of the pavement.
The data collected by laser profilometer is the relative height value of the pavement and it requires calculating the IRI value with International Roughness Index standard calculation procedure and 100 meters as calculation interval and providing the relevant relation and parameters between the measurement value of laser profilometer and IRI under selected testing condition. 2.4 Vehicular turbulence cumulative meter test method Vehicular turbulence cumulative meter is assembled by displacement mechanical sensor installed in the car; the test system mainly constitutes of carrying vehicles, distance measurement device, turbulence cumulative meter device and control system.
But the test results are related to the own dynamic property, running speed, types of surface, and so on.

It negatively affects the behavior of this material at low temperatures.
Apparently, such ambiguous behavior of steels depends on the nature of the material, its chemical composition, structural phase state, and other factors.
Aleksandrov, Ob’emnye nanostrukturnye metallicheskie materialy: poluchenie, struktura i svojstva, Moskva, 2007 (Bulk Nanostructured Metal Materials: Production, Structure, and Properties) [in Russian]
Maier, etc., Annealing behavior of ultrafine grained structure in low-carbon steel produced by equal channel angular pressing, Materials Science and Engineering A - Structural Materials Properties Microstructure and Processing. 1(581) (2013) 104-107
Syromyatnikova, Vliyanie rezhimov termoplasticheskoj obrabotki na mekhanicheskie svojstva i mekhanizm razrusheniya nizkolegirovannoj stali pri nizkih temperaturah ispytaniya, Fundamental'nye issledovaniya. 2(1) (2015) 30-35 (Influence of thermoplastic treatment modes on mechanical properties and fracture mechanism of low-alloy steel at low test temperatures) [in Russian]

Fabrication of bricks includes clay minerals mixed with water making this new material to be highly plastic (hydroplasticity property).
Under this severe condition of drying, the highest moisture content and temperature gradients occur at the surface of the solid mainly close to the vertex region, which would induce thermal, hydric and mechanical stresses, rendering this region more vulnerable to cracks and fissures.
The mechanical behavior of clay is generally described as elastic viscosity and plasticity depending on the moisture content.
Further, the drying rate can also be affected by the shape of the brick.
Based on the results presented, the following conclusions can be summarized: a) as larger the drying time smaller will be the average moisture content of the solid; b) The influence of temperature as a major factor in the drying rate is confirmed.

The last factor includes the composition and properties of the surface films on the particles formed at their preparation and storage, which may affect the process both thermodynamically and kinetically [45].
First of all, it regards the situation when nanopowders may absolutely vary its chemical, physicochemical and adsorptive properties.
Cheetham (Eds.), The chemistry of nanomaterials: synthesis, properties and applications, Wiley, Weinheim, 2005, 94-112
Sidorov, Mechanical Properties and Structure of Zinc-Containing Latex-Silicate Composites, J.
Fenin, Synthesis and properties of zinc nanoparticles: The role and prospects of radiation chemistry in the development of modern nanotechnology, Prot.

Aerodynamic characteristics analysis of high-speed train on cutting under crosswinds YE Kun1,2,a,LI Renxian1,b 1School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031, China 2China Aerodynamics Research and Development Center, High speed Aerodynamic Research Institute, Mianyang, 622000, China ayekun2008313@163.com,brxli@home.swjtu.edu.cn Key words: High-speed train, Crosswinds, Cutting, Numerical analysis Abstract: Cutting is an effective device to reduce crosswind loads acting on trains.
The cutting depth, width and gradient of slope are important factors for design and construction of cutting.
Strong crosswinds cause a serious threat to safety of railway transportation and people's life and property [1-7].
Effect factors of cutting on transverse aerodynamic forces mainly include the following three aspects: (1) cutting depth; (2) cutting width; (3) gradient of cutting slope.
The cutting depth, width and gradient of slope can affect aerodynamic side forces and yawing moments acting on the train.

However, the sensor will conduct electrochemical reaction in seawater, at the same time, when the probe is falling free, its own declining rate, attitude angle and so on all may affect the measurement result and cause the data deviation.
To get accurate and effective current data, based on the mathematical model and against the effect factors of measurement results, this paper provides the neural network modification method based on generalization ability [2] ，and discusses the design of system circuit and sensor electrode.
Therefore, the selection of electrode material is very important, apart from a good electrical property, its physical properties such as thermal expansion coefficient, strength, corrosion, oxidation, etc. also should be ensured.
Compared with the normal Ag / AgCl cladding electrode, its main advantages are: 1) it has good anti-polarization interference performance, high accuracy and low noise; 2) No wear problems, good mechanical properties and easy to be facilitated various shapes electrode by machining; 3) it can well send the electric field letter.
Among them, the learning algorithm of network weights uses Levenberg-Marquardt (LM) algorithm [12], which is the improved form of Gauss – Newton method, it not only has the local properties of Gauss - Newton method, but also owns the global properties of gradient method.

Surface properties of particles are more dominant than bulk properties as particle size decreases.
In the ceramic industry, it is specially investigated for colloidal processing, dispersion and agglomeration, friction, and chemical mechanical polishing.
Colloidal stabilization is importantly considered in ceramic processing to control rhelogical properties and achieve maximum particle packing densities.
The behavior and property of the particulate system is dominated by the net force acting on the given particle.
The properties such as solubility, molecular weight, ionic charge developed in the liquid medium are critical factors to decide the proper dispersant in the given system.