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Some academics have also studied the strength and mechanical properties of concretion stones [6,7].
In this paper, combination of factors affecting the stones strength, the data of grouting concretion stones strength obtained by test is regression predicted based on support vector machines method.
These factors are inextricably linked with particle size of soil media, so the particle characteristic is the key factor to affect the soil permeability and the physical properties of grouting concretion stones.
Finally, grouting concretion stones strength is affected by many factors, and it will be changed in any factors changing.
"Analysis of Factors Affecting the Strength of the Grouting Stones.

The alkaline environment of concrete with a pH higher than 12.0 affects the glass fibres degradative, whereas this degradation presents by reduction of their mechanical characteristics, resulting in a decrease in the tensile strength of the whole composite.
Properties of the FRP are now well known.
Composite reinforcements based on glass fibres (GFRP reinforcement) are presently being used the most often, due not only to their favourable physico-mechanical and chemical properties but also their good availability and lower initial cost [2].
The limiting factor is also the fact that the properties of the composite can be negatively affected by the alkaline environment of the concrete in the long term, which is of particular importance for the frequently used E and ECR glass fibres (for ex. [5], [8] or [1]).
It is therefore always necessary to take into account the limiting physical properties of the tested GFRP reinforcement.

This article has carried on the description about atomized characteristic of oil-water slurry, and it’s atomizing performance and analysis to the nozzle of type ZCK154S432 and type ZCK154S423 is studied experimentally from different spurting pressure, the different spray nozzle type as well as the different density of refined oil-water slurry, obtained the main factors of affect oil-water slurry’s atomization, illustrated the importance of developing coal instead of oil.
Introduction As an alternative fuel, coal water slurry not only preserve the original physical and chemical properties of coal, but also possess liquids liquidity and stability like oil.
Opening pressure, nozzle type and consistency of oil coal water slurry are the major factors affecting atomization.
Opening pressure affect engine performance by affecting the quality of the spray.
Liaoning Technical University, currently Lecturer of Mechanical Engineering, mainly engage in experimental theory, mechanical design and environmental protection machinery and so on. email: weiannie2003@sohu.com.

In order to solve the problems of the waste of resources, and reduce the cost directly caused by the short life of the hot die in enterprises, this paper analyzes the wear of hot die which is one of the main factors affecting service life, and a thought that enhanced mold through laser surface local stripe grid bionic process is pointed out.
Wear failure is complex and influenced by various factors.
Erosion wear, one of the most important factors is erosion wear, which are results of wear and chemistry wear, melting loss will cause bonding phenomenon of mold and die casting.
Fig. 2 Archetypes of butterfly wings with crack resistance Wings are combined by rigid wing veins and light wing membranous distributed as striated gridding, which is a typical model with excellent mechanical properties, perfect combination of rigidity and flexibility and obvious non-smooth shape.
Atkins: Journal of Mechanical Engineering Science.

The results show that both steels have similar martensite due to high hardenability of B element which is responsible for high mechanical properties.
Martensite size in B-bearing steel was refined by Nb element for high fatigue property and toughness.
It shows that both steels have similar martensite due to high hardenability of B element which was responsible for high mechanical properties.
The effect of such precipitates is more dominant on fatigue property and toughness than other mechanical properties of B-containing steels.
The most important factors affecting the mechanical properties of B-bearing steel was the number of precipitate.

The mechanical properties of the welded joints produced are influenced by various factors.
This study aims to determine the effect of the magnitude of the welding current on the mechanical properties and physical properties of the SMAW weld joints.
The researchers have been described above have investigated the effect of welding current on the mechanical properties of welded joints.
The mechanical properties studied here were through impact and hardness testing.
The Effect Of Polysilazane On The Densification And Mechanical Properties Of SICF/SIC Composites.

Especially the mechanical properties of inservice facilities under a cruel environment are decreased by material degradation.
This degradation of mechanical properties is an important factor that affects the safety of operation of facilities.
A harmonic generation of the incident wave is the most typical non-linear response in the material with non-linear factors[5-7].
Then it was compared with mechanical properties from ultrasonic parameters such as attenuation and non-linear parameter.
(4) So it's possible to evaluate the material degradation and material properties using the relation between ultrasonic parameters and mechanical properties.

Determination of the Y flaw shape factor.
Fractography at a sufficient magnifications (N= 5000-10000x) allows of determining the necessary features required by the quantification of their affect.
These properties are among the others the characteristic dimensions, e.g. the diameter of a circular or axis of an elliptical pore parallel and perpendicular to the direction of fracture, or.
Soc. for Test. and Mats., Philadelphia, (1997) [3] Advanced technical ceramics - Monolithic ceramics - Mechanical properties at room temperature, Part 6: Guidelines for fractographic investigation (CEN/TS 843-6:2004) [4] V.D.
Richerson: Modern ceramic engineering - Properties, processing and use in design Marcel Dekker Inc., New York (1992)

Study on the mechanical properties of the latex-mycelium composite HE Juan1, a, CHENG Cong-mi1,a , SU Da-gen2,b , ZHONG Ming-feng2,b 1School of civil engineering,Guangzhou University,Guangzhou 510006,China 2School of materials science and engineering,South china university of technology ,Guangzhou 510640 acongmi2008@sina.com, bccm88888888@sina.com Keywords: composite, styrene-butadiene rubber latex, mycelium, silane coupling agent Abstract.
Interface is suggested to be a key factor contributing to the properties of the composite[3], thus interface modification is recognized as an effective way of improving the bond between mycelium and polymer.
The compressive strength was measured in accordance with the Standard Test Method for Measuring Compressive Properties of Thermal Insulations[6] in this study, and it was taken as the load that caused a 10% deformation along the horizontal axis.
a) sem image of the mycelial network b) sem image of bond between mycelium and latex Fig. 4 Sem image of the sample treated with latex and coupling agent The effect of coupling agent and sbr latex At last, the effect of sbr latex and mycelial network on the mechanical properties of the composites was studied.
Vol. 118 (2008), p. 106 [6] ASTM C165-2007 Standard Test Method for Measuring Compressive Properties of Thermal Insulations [S] [7] M.Stajic, L.Persky, D.Friesem, Y.Hadar:Enzyme and Microbial technology .

Selection of multi-contact simulation parameters based on the model of material properties and geometric characteristics would determine the validity of the solving result of multi-contact.
In Mechanical Systems, viscous damping is most commonly used.
Coefficient of restitution must be determined by the experiment and it is influenced by many factors such as material properties and geometric characteristics and so on.
Therefore, the maximum damping coefficient is related not only with their own material properties of the two collision objects (Young's modulus, Poisson's ratio, etc.), but also with the geometric characteristics and motion characteristics of two collision objects.
Conclusion The research and analysis show that viscous damping coefficient affects the rigid body contact force.