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Introduction In vivo, the sclera and scleral fibroblasts have been in mechanical environment because of the internal pressure and eye movements, the mechanical stimulation play an important role in sclera remodeling of myopia development and recovery by means of regulating the biochemical and biomechanical properties of the sclera and scleral fibroblasts.
Scleral pathology (e.g. scleral thinning, the loss of scleral tissue, the weakening of the scleral mechanical properties) is a major cause of high myopia development [6].
Therefore, we hypothesize that the mechanical stimulation can affect the sclera remodeling by regulating the scleral fibroblasts after PSR surgery.
Li, “The study of the role of MMP–2, TIMP-2 and growth factors in lens-induced myopia”, Chinese Journal of Optometry & Ophthalmology, vol. 10, pp 17-20, 2008
Zhang, “An experimental study on collagen content and biomechanical properties of sclera after posterior sclera reinforcement”, Clinical Biomechanics, vol. 23, pp 17–20, 2008

It is known that composite properties do not depend only on the types of the matrix and fiber, but also other factors such as manufacturing processes, fiber concentration, fiber length, fiber orientation and fiber matrix adhesion.
All these factors are interconnected [8-11].
The mechanical properties of the obtained composites materials are presented in Table 2.
[2] Song Guiming, Li Qiang, Mechanical properties of short carbon fiber-reinforced TiC composites produced by hot pressing, J.
Effect of carbon fiber surface functional groups on the mechanical properties of carbon–carbon composites with HTT.

The purpose of the paper is the short presentation of these dimensions, affecting the applicable techniques and methods.
The aim of the research work is the answering of the question of the technical dimension, affecting the economic dimension.
The damage or fracture during an unordinary application - different from the designed one - not affects the basic concept.
Good example for this if we imagine the levels as the faces of a tetrahedron; in this case the summit of the tetrahedron will be the materials characteristics, the damage processes, the results of the destructive examinations, and the material properties databank.
DEFECT SIZE AND TYPE AS ABOVE, PLUS PIPE DATA, PIPE PRESSURE AS ABOVE, BUT ADDITIONAL DEFECT, PIPE AND MATERIAL DATA AS ABOVE, PLUS PIPE SAMPLE OR MATERIAL PROPERTIES AS ABOVE, PLUS DISTRIBUTIONS OF PIPE, MATERIAL AND DEFECT DATA STAGE 1 QUALITATIVE e.g.

Bending fatigue properties of gears The factors that influence bending fatigue properties of gear drive are divided into three categories.
(i) Factors that influence local stress.
(ii) Factors that influence the microstructure of gear material.
(iii) Factors that influence the source of tooth root fatigue damage. such as surface roughness of gear.
Fig.2 S-N curves of bending fatigue Load spectrum of tooth root bending stress The properties of stress cycle are decided by average stress sm and stress amplitudesa[5].

However, it still retains superior mechanical properties, resistance to fatigue and high-temperature corrosion resistance under elevated temperatures.
It is deemed that the Nibase alloys have the best high-temperature mechanical properties comparing with other materials [1].
Under an highly elevated temperature, it would still retain excellent mechanical properties, such as tensile strength, fatigue resistance and creep strength etc [2][3].
The main purpose was to discover the significant factors.
The machining process would be able to select an appropriate combination through the formula without affecting the work removal rate in order to meet the requirements for surface roughness. 6.

THE WELDING PARAMETERS SUCH AS WELDING CURRENT, FORCE, WELDING SPEED, AND FILLER METAL WILL DIRECTLY AFFECT THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF THE WELDING JOINT.
These standard arrays will provide complete information about the factors and their influence on the efficiency of the process.
The orthogonal arrays utilized in the experiment were chosen from the orthogonal arrays determined by the number of factors and their levels.
On the other hand, welding joints are formed on the surface of two materials with different chemical and mechanical properties.
The degree of influence of each welding technology parameter on two mechanical properties are: bonding strength and microscopic hardness of the weld have been determined.

Laser forming of open-cell aluminum foams can be modeled by means of 3D thermo-mechanical models but the correct evaluation of the alloy material properties is a key-factor for obtaining good predictions.
Experimental tests have been performed by compression and used to infer mechanical properties by means of a 3D FE model.
As a general conclusion, laser forming is able to produce large deformations of the foams without affecting their structural integrity.
The temperature-dependent material properties were partially extracted by references for elastic, yielding, and thermal properties.
Mechanical properties of foams are not uniform and it is also expected that they would change as an effect of the laser forming process.

Laser forming technique is based on the temperature gradient mechanism (TGM) and temperature distribution is the main factor that affects the laser forming process.
The temperature distribution can be influenced by several parameters, such as laser spot diameter, laser power and laser scan-speed, which ultimately affect the shape and mechanical properties of the workpieces [13, 14].
The thermophysical properties of SiC is listed in table 1 and thermophysical properties of TC4, as shown in Fig.3, varies with temperature.
The thermophysical properties of SiC [11, 15].
Li, Effect of electron beam welding on the microstructures and mechanical properties of thick TC4-DT alloy, Materials & Design, 34 (2012) 509-515

However, the mechanical properties of the viscous materials are between flexibility and viscous between, building models is more difficult, the dissipation of energy is more difficult to estimate.
Nonlinear factors analysis β/κ, q reflect respectively the size of the passive isolation system stiffness, the strength of the nonlinear damping.
Effect of nonlinear stiffness (β/k, η) factors on frequency response Fig.3.
Effect damping factor(fractional operator q)on frequency response Fig.4.Effect of nonlinear stiffness and damping factors on frequency response Summary This paper considered factors of the stiffness vibration isolation system and the nonlinear of damping, established the fractional order nonlinear dynamical equation of the viscoelastic passive vibration isolator; the response equation are derived by the method of harmonic balance frequency, studied the intensity of nonlinear how to affect frequency characteristics; The Floquet theory is used to analyse the stability of the vibration isolator stable periodic solutions, discussed the stability interval of constant periodic solution.
[2] A.H.Chen, D.S.Liu, Y.P.Zhu: Chinese Journal of Mechanical Engineering, ·Vol·37· (2001), No.6, p9-105.

These fibers were used because of their impressive mechanical properties.
The main reason for select sansevieria cylindrica fiber is due to its better mechanical properties compared to other natural fiber composites.
Test for Chemical Properties Test for Cellulose.
Hassan, A review of the flammability factors of kenaf and allied fibre reinforced polymer composites, Advances in Materials Science and Engineering. (2014) [5] V.S.
Ramamoorthi, Investigation of mechanical properties and morphological study of the alkali treated agave angustifolia marginata fiber reinforced epoxy polymer composites.