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However, the mechanical properties of Al is pretty moderates.
A high strength, stiff and light weight reinforcement phase is needed to improve the mechanical properties.
There are two factors that could influence the properties of graphene reinforced Al matrix composites: dispersion of graphene and graphene/Al interface [8, 9].
Rolling is a conventional processing method that can improve the mechanical properties of alloys [13].
Agarwal, An analysis of the factors affecting strengthening in carbon nanotube reinforced aluminum composites, Carbon 49(2) (2011) 533-544

Moreover, introduction of these quantum dots into commercial production can significantly improve the mechanical properties of the covering films used for greenhouses and slow down the process of their destruction.
The first two factors can be achieved, the latter factor we can control to a less extent.
Main characteristics of the solar radiation, affecting the efficiency of light conversion can be determined by methods given in [22, 23].
Moreover, the introduction of these quantum dots in a commercial can significantly improve the mechanical properties of the film and decrease process of destruction.
Basic methods of testing the effects of external factors.

When choosing the appropriate trenchless technology, several factors need to be considered.
The resin system may or may not contain organic or inorganic fillers and various additives affecting the workability time.
Tests have also shown that non-compliance with design thicknesses has no effect on the mechanical properties of the composite.
It is known from practice that a number of factors influence the resulting thickness of the renovation product.
Other factors that need to be considered are the manipulation of a saturated lining, work pressures during installation, and so on.

In the loading process of heterogeneous rocks, crack initiates locally and the crack initiation will affect its neighbors, which leads to the propagation of cracks.
Spatial variation is also one of the most important factors that affect the failure modes of rock.
As shown in figure 6, before the peak region, the curves have the same slope factor.
A new meso-mechanical approach for modeling the rock fracturing process.
Research on influence of pre-existing crack geometrical and material properties on crack propagation in rocks.

They protect IC or PCB substrates from physical and chemical destruction, prevent signal delay affecting system performances and provide paths for heat dissipation.
They also have the characteristics of increasing thermal stability of packaging materials, lowering the coefficient of thermal expansion to decrease thermal stress and improve mechanical properties. [2] Composites are materials combined by two or more than two materials with different physical and chemical properties.
Epoxy possesses good mechanical, electrical, chemical and adhesive properties and is widely used in paint, binder, polymer composite materials.
Because of its high strength and insulation properties, using epoxy is the majority in the polymer market.
Some researches [4-7] show significant improvement in thermal and mechanical properties using nano-size fillers.

Research on the Properties of Collapsible Loess Reinforced by Cement 1,a Xiaoping Su 1School of Civil Engineering, Changchun Institute of Technology, Changchun 130012, China a E-mail: sxp5400@163.com Keywords: Collapsibility; Loess; Cement; Stadium; Strength Abstract.
The collapsibility of loess ground can directly affect the stability of the subgrade.
Basic Physical and Mechanical Properties.
The loess developed in different geomorphological units own different physicals and mechanicals properties.
The factors that affect the size of loess collapsibility in this area are mainly include temperature, pressure, water, matter and structure composition of loess, besides have some mater with the geomorphological units type of the loess .

As a result, the mechanical property of the circuit drops in a large extent and it cannot run smoothly.
As a result, the mechanical reliability turns into the determining factor for the reliability of vacuum circuit breaker.
Among all these influencing factors, the main deformation is caused by the pre-tightening force of the bolts during installation.
This type of circuit breaker is a three-phase pillar type structural with compact dimensions, light weight and stable switching properties.
The material properties can be seen in table 1.

Introduction Materials of an ultrafine-grained and nanometric structure exhibit mechanical properties that often surpass those of conventionally obtained materials having phases or grain structures on a micrometric scale.
Ultrafine-grained structures and nanostructures can be characterized as being unique owing to their physical and mechanical properties, such as: high low-temperature strength and/or high stress superplasticity and others [1, 3, 6, 7].
During applying high deformations, a strain anisotropy occurs in the material, which causes the anisotropy of mechanical properties.
Therefore, computation results are particularly affected by: the properties of material examined, friction conditions, and the kinetic and thermal parameters describing the plastic working process.
Kwapisz: The study of accumulation roll-bonding processes of aluminum and development of the model microstructure and mechanical properties, PhD dissertation, Czestochowa University of Technology, 2007 [4] M.

The high-cycle fatigue properties of 0.35 % carbon steel and work-hardened oxygen-free copper in 10MPa hydrogen were studied.
The effect of hydrogen on the fatigue properties of metals is one of the most important issues in the design of hydrogen equipment.
However, there are very few studies about the high-cycle fatigue properties in high-pressure hydrogen.
The mechanical properties of the materials are shown in Table 2.
Further investigation is required to determine the effect of hydrogen on the very high-cycle fatigue properties.

The vulcanizate of this compound showed good physical properties, high electrical conductivities and also complied with Malaysia Standard 1097 [1].
The usage of these electrically conductive tire components readily affected the physical properties of tire tread, such as lowering its elasticity, increasing its rolling resistance and also reducing its wet performance.
At the first stage, ENR based masterbatches with different proportions of hybrid electrical conductive fillers and silicas (accordingly to Table 1) were prepared by using an internal mechanical mixing device (fill factor of 0.70, starting temperature 70oC and rotor’s speed 100 rotations per minute.
Test samples of sulfur-vulcanized ENR based compounds showed some tensile properties values (measured accordingly to the Malaysian Standard, MS ISO 37) as summarized in Figs. 1and 2.
Elongation at Break Percentage (EB%) Values versus Hybrid Conductive Fillers Contents Electrical Properties Testing.