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Introduction Surface modifications and coatings offer the possibility of altering the surface properties of surgical component and thereby achieving improvements in performance, reliability and biocompatibility.
To assess possible mechanism(s) by which surface chemistry modification with CHAp affected the adhesion, of HBDC we examined expression of intracellular signalling proteins by HBDC plated onto different surfaces.
The production of a homogeneous film is necessary to ensure good mechanical properties as well as protection of the substrate.
[5] Chung-Fang Lai and Su-Li Cheng Signal Transductions Induced by Bone Morphogenetic Protein-2 and Transforming Growth Factor- in Normal Human Osteoblastic Cells J.
[7] Roest, R., Physical and Mechanical Properties of Hydroxyapatite and Zirconia Sol-Gel Coatings on Anodised Titanium Substrate, MSc Thesis, University of Technology: Sydney, (2004) [8] Jaiswal.

The size of individual zones on the blank’s edge, burr height, deflection and fracture angle affect the blank’s geometrical quality.
The accuracy of such modeling is affected by several factors, in particular on applied ductile fracture criterion, the method and accuracy of material parameter determination and the parameters of the modeling itself.
However, the shape of the crack is largely affected by the size and shape of the mesh in these two techniques.
Experimental material property present in literature has been used.
To obtain a more reliable FE model for the blanking simulation it is necessary to go ahead with specific numerical and experimental activities, in order to define accurately the mechanical material properties, as the critical value of damage, C (Eq. 1).

There are two main factors that need to be considered as important parameters that affect the response of a structure: kinetic energy () and potential energy ().
When a material is subjected to impact loading, the kinetic energy is required since it is an essential factor used to validate design criteria of a structure [1-2].
Therefore, before performing tests on a structure, the selection for the appropriate test parameters such as the material properties, mass of impactor, geometry of the impactor and the impacted surface, the impact velocity, and boundary condition must be made carefully to ensure that the test conditions are similar to the actual impact conditions.
The most commanding factor is the impact velocity since various damage models have been built with specific regard to the series of impact velocities [2, 7].
This impactor was controlled electro-magnetically during the test whilst a simple mechanical catching system was designed to prevent multiple impacts on the test specimen.

Response surface methodology (RSM) is a collection of mathematical and statistical techniques that is useful for improving, developing and optimizing processes , and it can be used to evaluate relative significance of several affecting factors even in the presence of complex interactions[11,12].
The independent variables (factors) were hybrid polymer dose (X1) and wastewater pH (X2).
These factors have three levels as follows: -1 (low), 0 (center), and +1 (high) as shown in table (Table 1).
Whereas A and B are the coded factors (independent variables) of hybrid polymer dose and wastewater pH respectively.
Rebhum, Effect of properties of polyelectrolytes on their interaction with particulates and soluble organics, PERGAMON, PII:S0273-1223(97)0042-3 [19] S.S.

One of the crucial factors that decide the morphology of nanostructures in such syntheses is the enthalpy of ambient gas.
We have attempted to correlate the change in morphology of silicon nanostructures with the change in thermodynamic properties of plasma.
Fig. 1 Thermodynamic properties of argon and argon–hydrogen plasma. a.
Murphy whose code was used to calculate Thermodynamic properties of thermal plasma.
Shen, Polymer/Silica Nanocomposites: Preparation, Characterization, properties, and Applications, Chem.

For these applications magnesium alloys are required to possess good die-castability and excellent mechanical properties, especially high temperature creep resistance, since the operative temperatures are in the range of 150-200C.
It has been found that the creep properties of Mg-RE based alloys vary with different RE additions, but the underlying mechanism is not clear.
This work seeks to provide an insight into the microstructural factors that are important to the creep resistance of HPDC Mg-RE based alloys.
The Nd solute may affect the creep deformation by solid solution strengthening at the beginning.
[2] Aune, T.K., Ruden T.J. (1992) High temperature properties of magnesium die casting alloys, SAE Transactions: Journal of Materials and Manufacturing 101, 1-7

Therefore, the fatigue properties of cold-recycled materials become the focus of the issue, which determines its application prospects.
This is due to the strength of the coarse aggregate in natural factors and driving load declined, the damage caused by the tiny crack.
Interface transition zone become cold regeneration material mechanics properties and durability of the weak point: The different between the older material aggregate and new materials, it is easy to have the stress concentrationwhen cold regeneration materials is in force.
Research of semi-rigid base material fatigue properties [D].Xi’an: Chang-an university, highway college. 2008.
Research of fly ash the fatigue property of lean concrete.

So, adjusting driving/braking force is widely used to improve the dynamic property of vehicles and enhance their stability.
Sliding mode control has the advantage of robustness features against possible disturbances and parameter variations affecting the vehicle model, and it will produce low complexity control laws compare to other robust control method.
Establishing the vehicle model, it should be fully consider the main factors affect vehicle handling and stability that the model can exactly descript the vehicle dynamic, while it should be as simple as possible that it can meet the requirement of real-time calculation.
Advanced Sliding Mode Control for Mechanical Systems[M].Beijing：Tsinghua University Press,2011：19-25.

To enhance its mechanical, physical, and electrical properties, including conductivity, magnetic and optical properties, PANI is often combined with metal particles [6].
Additionally, the physical and chemical properties of these aromatic conjugates are mainly driven by π electrons in the molecule [12-15].
The temperature and protonic acid concentration were critical factors affecting the initial coloration during the mixing of reactants.
Ravikiran, Tungsten disulfide: An efficient material in enhancement of AC conductivity and dielectric properties of polyaniline, J.
Marjanovic, Recent advances in polyaniline research: Polymerization mechanisms, structural aspects, properties and applications, Synth.

In regards to the diamond abrasive, its type, size and concentration are factors that have the greatest significance.
By using either cobalt- or nickel-base alloy as a solvent in the diamond synthesis, crystals of different internal structure and particle properties can be obtained.
The particle shape will also affect the behaviour of crystal breakdown.
The grit size, along with its strength and retention behaviour, determines the crystal protrusion window and thus affects the distance by which the matrix clears the workpiece.
The application of pressure-less sintering in the manufacture of diamond impregnated tools is limited by restrictions on the composition, mechanical strength and dimensional accuracy of the final product.