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Due to its mechanical and thermal properties, besides being easy to process, this type of resin is highlighted in the group of thermosets [1].
This combination has presented a wide potential in the improvement of properties and characteristics of the materials [4].
In the preparation of thermosetting composites, the POSS have been widely studied in obtaining hybrid materials which would be able to support higher temperatures [5], promoting an improvement in the mechanical and surface properties as, for example, polymer hydrophobicity [6].
These were mainly in reference to the addition of POSS to epoxy resin, reaching better mechanical properties such as impact and flexibility resistance, a higher thermoxidative resistance and a significant increase of glass transition temperature of the material [4,7].
Factors as free volume, coefficient of thermal expansion, forces of intermolecular interaction and degrees of freedom of conformation can affect the way polymer chains assume the equilibrium of molecular vibration [18,19].

The technical parameters related raw materials used in this project are as follows: (1) Cement used Shui P. 042.5 Cement, its physical and chemical properties in Table 1.
Table 1 Physical and chemical properties of cement Physical analysis Degree of fineness (0.08mmSieve, %) Surface area (m2/kg) Setting time (min) Compressive strength (Mpa) Initial setting Final setting 3d 7d 1.7 337 150 226 26.7 58.9 Chemical analysis 22.32 5.17 3.31 65.28 0.41 2.26 (2)Mineral admixtures utilize powdered slag, the powdered slag produced by the Wuyang Steel, Surface area4200cm2/g, its physical and chemical properties is in Table 2.
Table 2 The physical and chemical properties of slag Physical analysis Surface area (m2/ kg) LOI (%) 7d activity index (%) 28d activity index (%) Density (g/cm3) 420 5.16 76 106 2.94 Chemical analysis 37.4 16.7 4.6 28.5 6.2 0.6 (3)Coal ash is low calcium fly ash Class Ⅰproduced in Henan Yaomeng, dry row, The physical and chemical properties in Table 3.
The delivery of concrete, it should be as short as possible in delivery time and distance, so as to avoid vibration during transport sinking of the steel fibers, affecting the uniformity of mixing materials, At the same time to prevent fiber contamination, the maximum transportation time take the initial setting time test and to give the construction of cement with sufficient operating time as the limit time.
Experimental study on mechanical behavior of prestressed steel fiber reinforced concrete hollow slab.

This affects the thermal performance of power devices seriously and makes the working temperature of power devices too high to work normally and causes multifarious questions [1,3].
The results of the present study focus on impacts of different solder voids’ area and distribution on thermal properties and thermal resistance of power devices[2,4].
Chiriac et.al, have won some achievements on impacts of solder voids on PQFN package devices’ thermal and mechanical characteristics [1].
In general, the uppermost influence factor of power devices cooling is the solder voids under active region.
Chiriac and Youmin Yu: Impacts of Solder Voids on PQFN Packages’ Thermal and Mechanical Performances (2010)

For the results presented here, all precautions were taken, to ensure that all the specimens were tested at the same strain amplitude and thus avoiding any other phenomena affecting their behaviour.
As one might expect the elastic and damping properties of polyurethane would be strongly temperature dependent, whereas for the ceramic coating the opposite is true.
Cfl Temperature [ ] Cfl First set of tests Second set of tests 23 64% Factor of 2.1 100 Factor of 2 Factor of 2.5 150 Factor of 1.9 Factor of 2.5 Table 1.
It is true that temperature now becomes a parameter affecting the damping of the otherwise non-temperature dependent ceramic coating, but not to a great effect.
Williams, Hard damping coatings: material properties and F.E. prediction method, CD-Rom Proceedings of the 8 th National Turbine Engine High Cycle Fatigue (HCF) Conference, Monterey, California, April 14-16, (2003).

In the present study, mechanical properties and fracture toughness of two cast A356 alloys were measured, and effects of eutectic Si particles on mechanical properties and fracture toughness were investigated.
Tensile Properties and Fracture Toughness.
Thus, the CF alloy shows the excellent overall mechanical properties including strength, elongation, and fracture toughness over the RC alloy.
Consequently, the CF alloy has more excellent mechanical properties including higher hardness, strength, elongation, and fracture toughness than the RC alloy
Therefore, the CF alloy had superior mechanical properties including hardness, strength, elongation, and fracture toughness to those of the RC alloy.

Factors at the scene of the fire were explored such as smoke spread and changes in temperature.
The high carbon monoxide (CO) concentration and temperatures, and low smoke layer height caused low visibility levels, impeding firefighting and rescue operations at the fire scene; thus, these factors were explored.
The field commander must assess the circumstances at the scene to determine which firefighting tactics are appropriate considering the aforementioned factors
Visibility could have been improved by using smoke control equipment, but restricting factors at the scene (e.g., high temperatures) exacerbated the search for the origin point.
If factors at the scene (i.e., high temperatures, high CO concentration levels, and low gas layer height) result in low visibility levels, impeding rescue efforts, ventilation tactics should be employed instead.

Through the creation of the finite element analysis model of the composite pavement, the paper analyzed the shear stress and influencing factors such as a different level of force, the contact between the different layer, shear stress conditions, the surface layer modulus and thickness, base thickness, soil base resilient modulus.
The use of flame-retardant modifier to improve the flame retardant properties of the asphalt concrete, with cold-rolled ribbed steel mesh cement concrete leveling layer to adjust the aspect of the road slope, thick paving asphalt pavement, asphalt concrete leveling layer between set crumb rubber modified asphalt stress absorbing layer.
Stress-absorbing layer affect in maximum shear stress between layers According to the pavement structure, a finite element analysis model is established, the thickness of laying stress-absorbing layer takes 2~8cm and resilient modulus is in the range of 10~300Mpa and its benchmark value is 150Mpa.
Table 2 Stress-absorbing layer modulus variation of the maximum shear stress between layers Stress layer modulus changes(Mpa) 80 90 100 110 120 130 140 The top layer of shear stress(Mpa) 0.223 0.232 0.240 0.248 0.255 0.261 0.266 Layer bottom shear stress(Mpa) 0.161 0.166 0.170 0.174 0.177 0.179 0.182 Stress layer modulus changesMpa) 150 160 170 180 190 200 210 The top layer of shear stress(Mpa) 0.272 0.277 0.282 0.287 0.291 0.294 0.298 Layer bottom shear stress(Mpa) 0.184 0.186 0.188 0.19 0.192 0.192 0.194 Fig.2 Interlaminar shear stress and stress-absorbing layer resilient modulus curve Fig.2 shows that the size of the interlayer shear stress increases with the increase of the stress-absorbing layer resilient modulus, when the resilient modulus varies from 80MPa to 210MPa and when the top layer and layer bottom shear stress change values respectively33.7% and 20.2%, visible stress-absorbing layer resilient modulus of the interlayer shear stress significantly affect the lower resilient
[2] XiaoMin Wang:Tunnel composite asphalt pavement structure of the mechanical properties and anti-drainage system optimization(chongqingjiaotong University ,Chongqing 2007) .In Chinese

So the joint interface characteristics are the main factors that affect the overall performance.
The studies above had measured the joint surfaces stiffness and damping coefficients and analysed the influence of various factors on the joint surfaces stiffness and damping, and some corresponding models were established at the same time.
The properties of iron-based porous oily material inserts are shown in Table 1.
Table.1 The properties of Fe-based porous oily material Parameter H(Pa) E(Pa) G(m) h(m) V(m/s) m(kg) Value Experimental Results 1) Still state stiffness and damping experiments When the normal load was 2Nm, the joint surfaces acceleration response curve shown in Fig. 4 could be measured by the measuring system.
Journal of Mechanical Engineering Science, 1979(21): 25-32

Based on the XRD result, the Mg doping is affecting the stability of the phases presence and the crystal lattice creating a distortion due to the substitution of smaller Mg ion.
To further increase the biological properties of BCP, doping was introduced.
Through all advantages, HA also has suffered some disadvantages to be utilized for long-term biomedical application due its possess slow degradation rate [2] and low mechanical properties for load-bearing application [3].
From the graph, decreasing trend of HA shown was due to two factors which is the Mg substitution and influence of temperature as it increased from 800 oC to 1000 oC.
Aizawa, Zinc-substituted hydroxyapatite: A biomaterial with enhanced bioactivity and antibacterial properties, J.

There is therefore a need for models that predict the electroelastic properties and describe the deformation process of such piezoelectric materials.
Microscopic damages unlike submicroscopic damages, which under unloading, as a rule, vanish (are healed), are of irreversible character (i.e. they remain in the form of microcracks) and at a macrolevel are manifested as changes in mechanical properties of a material, in particular, in its deformability.
At the second phase, the method for determining effective electroelastic properties of the damaged medium and the model of accumulation of microdamages are employed.
To approximate distributions of the microstrength properties of structural elements the power law is used
Dependence of the stress from mechanical strain Because of the direct and inverse piezoelectric effect, we can see that the presence of an electric field affects the stress-strain dependence.