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Fig. 1 Form of bridge structure Nodes are created in the order from bottom to top and connected to form units which were endowed to corresponding unit type, shape of cross section and material properties.
Modeling factors The initial model is modified considering different modeling factors: (a) The synergy between steel tubular and concrete.
According to the formula 1 and 2, steel section is transformed into concrete section, the elastic modulus and section properties are calculated to modify the initial model.
To avoid and solve the disadvantage influence to structure stress with the factors, these modeling factors should be considered.
Mechanical System and Signal Processing, (2007), p. 2406-2426

Therefore, ignoring the accumulation of PG stockpiles raises environmental concerns regarding the distribution of harmful elements via leachate migration and air, negatively affecting living organisms [4].
It is worth noting that the physical and chemical characteristics of raw PG highly vary depending on the properties of phosphate ore used and the type of production.
It is proposed that the formation of ettringite from sulfate in PG can squeeze the large pore volumes, making the structure denser which positively affects the mechanical properties of the mixture.
Using the proper concentration of this chemical can positively affect the mechanical performance by delaying C3A hydration.
Thus, further research is needed on the use of various types of soil and an analysis of the effectiveness of PG in soil stabilization under the influence of possible external factors such as freeze-thaw cycles.

Al 6061 alloy is one of the non-ferrous metals which have properties of light; the power level is roughly equal to mild steel, good corrosion resistance, electrical conductivity and good heat and easily formed through the process of forming and machining [4].
The four end mill parameters (control factors) are type of milling operation, spindle speed, feed rate and depth of cut.
When the range of the series is too large or the optimal value of a quality characteristic is too enormous, it will cause the influence of some factors to be ignored.
Finally, with the application of Analysis of Variance (ANOVA), significant factors in this quality index and their contribution percentage for total variation in MPI can be obtained.
Thomas, Application of HSS Cutting Tools in the Mechanical Engineering Industry, Paper International HSS Forum Conference 2005, Aachen, Germany

This essay study that in magnetic field and current intensity, measurement, work of electric motor regulating speed applied by Hall integrated sensor shows that in electrical machinery electric circuit control and automatic control system, using Hall integrated sensor has stable properties, high reliability, good temperature stable properties, anti-pollution, without touch dot, etc advantages, comparing with traditional automatic control electric circuit has obvious advantages.
As is known to all, relay control system extensively used in the production, because of its many mechanical contact dots, complicated wiring, low reliability, high wasted work and when productive technological process change, we must design and change control line again, its general properties and flexibility properties is not good, therefore it can’t satisfy complicated and changeable control demand in modern production process day by day.
After considering above problems we determine selecting the type of the sensor and consider the properties index of the sensor.
But in practical use, because of various effect of environmental factors, we often pile up various errors in Hall voltage, in which Hall varied potential and the effect of environ mental temperature are the main factors.
In order to control electrical machinery working speed accurately and ensure punctual property of automatic control at the same time, we can choose proper model of Hall integrated sensor to conduct automatic control, this can lower cost, line structure is simple, the property is stable, operation is reliable and it is easy to operate.

Noted tendencies can be considered in further researches of phytotoxic and phytostimulating MWCNTs properties.
Among all nanomaterials, carbon-based materials (particularly, MWCNTs) have attracted much interest due to their unique mechanical and chemical properties, they are produced in large amounts and can be used for developing effective products for agricultural and environmental applications [2].
Difference in outputs can depend on several factors, such as species dependent effects, plant age and development stage, nanomaterial concentration and surface area, and many more.
Noted tendencies can be considered in further researches of phytotoxic and phytostimulating MWCNTs properties.
Biris, Carbon nanotubes are able to penetrate plant seed coat and dramatically affect seed germination and plant growth, ACS Nano. 3 (2009) 3221-3227

This research is to investigate the properties of compressed building bricks producedfrom Cameron Highlands reservoir sediment.
This study is also to identify the mechanical properties and chemical properties of the compressed sediment brick.
Table 1 shows the material properties of the sediments.
Water absorption is one of the key factor affecting the durability of the bricks against the environment.
Thermal properties and durability will also be investigated.

Feedstock having multi-polymer components showed better rheological properties than those having mono-polymer because of good wettability between powder and binder, and less sensitivity to temperature and shear rates.
Factors that influence the feedstock properties include processing variables such as speed and time of mixing, geometry of mixing blades, raw material feed rate, processing temperature, and material variables such as particle characteristics, solid volume fraction, binder composition and viscosity [4, 7].
The purpose of this study is to see the affect of various wax-based on the rheological property of the feedstock, in order to seek a suitable binder for the injection molding of tungsten-based heavy alloys. 2.
The purpose of Mechanical alloying was to avoid the powder agglomeration problem.
It was also found that feedstock having mono-polymer components exhibited poor rheological properties compared to multi-polymer.

In order to study viscoelastic properties of asphalt mixture, an advanced Shear Rheometer is used.
It is difficult to determine directly mechanical properties of asphalt mixture in such a broad range of temperature and load, even using the most advanced equipments and instruments.
A appropriate rheological model can describe well rheological properties of asphalt mixture.
Temperature - shift factor equation.
It is considered that strain will affect viscoelastic properties of material during the process of dynamic test.

By simulation, the results show the phase locus has time ergodicity and chaotic characteristic with cutting drive system in different bifurcation parameters, realizing the simulation of chaotic simulating load signal; cutting drive system properties have important significance to develop efficient cutting working mechanism.
Introduction Spiral drum is an important working mechanism of shearer, whose power consumed is 80% -90% of installed power of shearer; its cutting performance directly affects the productivity and reliability of shearer [1].
Such as Figure 1 shows the cut-off contact with broken teeth with coal formed a, b, c and d phase coal and rock cutting pick of the stage and pick suffered the corresponding cutting resistance. cutting coal cutter rock the process is divided into two phases: one phase is starting from the cut tooth movement, the force gradually increased until the cutting conditions to the maximum; the other stage is the separation of coal block at this time rapid decline in force has been reduced to a certain value, whether it is the growth rate or rate of decline in force, is a quantitative index, with the cutting of coal by the physical and mechanical properties of the rock.
The experimental physics model of single pick cutting coal is shown in Figure 1, which is equivalent to pick cutting coal simulation process. 1 2 4 5 3 1—drive system 2—pick seat posit 3—pick-shaped cutter 4—cutting coal 5—cutting resistance Fig. 1 The physical model of single-pick cutting coal Pick-shaped cutter cutting resistance curve can be measured when a test simulation to determine the coal wall coal cutting resistance and cutting the equivalent thickness by using a single tooth cutting bench[4], it has a strong volatility result from the size change and coal's internal structure, hardness, and the crushing process and other factors.
organization mechanical and physical properties of coal determine its amount is controlled, generally ranging from x1 and x3, considering the pick of quality, the establishment of a single coal and rock cutting pick the chaotic dynamics model such as equation (7) of the said: 1 ξ2 111ξξξξ x3 x1 Ke K 2 3 ξ1 1-drive system 2- pick-shaped cutter 3-coal and rock Fig.3 The mechanical model of cutting coal by single pick ， （6） Where x1, x3 is pick invasive drive systems and displacement,m； Ke is drive system equivalent spring stiffness,N /m； mt, mf is pick equivalent quality and drive campaign,kg； ξ1, ξ2 is drive system and the coal equivalent damping,N/(m/s)； C is drive constant，N/(m/s)2.

Therefore, the effectiveness of surfacing depends on the mechanical properties and functional characteristics of the deposited metal.
The structure and operational properties of the Fe-Ni alloying system have been studied in most detail among maraging steels.
Guo, Maraging Steels: Modelling of Microstructure, Properties and Applications, Woodhead Publishing, Cambridge, 2009
Heo, Effect of Nonequlibrium grain boundary segregation of alloying elements on mechanical properties in Fe-5Mn-9Ni-5Mo alloy, Materials Transactions. 37 (1996) 56-62
Gonzalez, Microstructural factors controlling the strength and ductility of particle-reinforced metal-matrix composites, J.