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Biomaterials that are used for bone tissue engineering need to fulfil many requirements that are closely connected to the biofunctional properties, physical and chemical characteristics, mechanical properties, interactions with the physiological environment.
An important properties for polymeric based composite it’s the porosity, who affects their mechanical properties, degradability, dimensional stability and have the potential of compromising not only the function of the implant but also can affect the biocompatibility [3].
For these biomaterials, the degradation of the collagen matrix is very important because the rate of degradation (loss in mechanical properties) should be tailored with the rate of tissue generation [1].
We use β-tricalcium phosphate and hydroxyapatite as bioceramics for reinforcing the collagen matrix because we want to see how the bioceramics type will affect the biodegradation properties of the composites [6, 7].
Future studies will be made in order to optimise the composition of the composite materials, analyse the mechanical properties and the biocompatibility of the experimental composite materials developed.

The effects of feeding order on properties of cured silicone resin were studied in detail.
Table 3 presented the mechanical properties of cured block copolymers prepared by three strategies.
It could be found that even if the proportion of D and T in the structure was the same, there was a significant difference in the mechanical properties because of the different feeding order.
Table 3 showed the changes of the mechanical properties and Mc of cured copolymer before and after radiation.
Fig. 4 SEM images of the cross section of the silicone resin before (a) and after (b, 1500kGy) radiation Conclusions The structure, mechanical properties, Tg and initial thermal decomposition temperature of cured block polysiloxane were greatly affected by the feeding order of phenylsesquioxane and silanol end-capped PDMS.

Therefore, it is very necessary to investigate the material and mechanical properties of thin films, such as the deformation and the failure mechanism, to offer the design and fabrication of the micro devices sufficient information and data.
To compare with the experimental results and evaluate different factors influencing on microbridge deformation, we simulated this problem with AQABUS.
Thirdly, different factors are considered in the model to explain the difference.
Among these factors, boundary condition, boundary shape, nonuniform thickness and uniform residual stress have little effect on the microbridge deformation.
Furthermore, the results of experiments are compared with results of the finite element simulation and some possible factors might affect the deformations of the microbridges are also discussed.

Choosing Control and Noise Factors The selected controllable factors in this study are walls (A), ceiling (B), window (C).
Table 2 defines each level for the main factors.
Main and noise factors and levels Level Main Factors Noise Factors Wall (A) Ceiling (B) Window (C) Humidity (E) Air flow (F) Temperature (G) Low level(1) 1 1 1 60 1 20 High level (2) 2 2 2 80 3 26 Table 2.
Maximum desirability of energy saving Table 4.Effect and ranking of mean and SN ratio for each controllable factor Factors Levels Wall (A) Ceiling (B) Window (C) Low level (1) 226051 -107.08 235730 -107.44 236560 -107.47 High Level (2) 240938 -107.63 231259 -107.28 230429 -107.25 Effect 14887 -0.55 -4471 0.16 -6134 0.22 Ranking 3 3 2 2 1 1 Discussion Generally, building elements behave differently regarding energy performance depending on the location, climatic conditions and physical properties of the building.
Conclusion In the residential buildings there are many factors that have effect on the energy efficiency and saving such as location, climate condition and physical properties and etc.

Finite Element Analysis of the Roll Collar 's Temperature Field of Universal Rolling Mill Xi-Ping Guo1,a,Xiao-Yong An1,b ,Shuang Zhou 2,c 1Inner Mongolia University of Science and Technology, Institute of Mechanical Engineering, Baotou, Inner Mongolia, China 014010 2 Rail and Beam Plant of Baotou Iron and Steel Group Co., Ltd.
Fig. 1 Finite element model of roll collar 3 Initial conditions and boundary conditions Before the finite element model is analysed, material properties of roll collar should be defined.
By practical experience and field production factors affecting the temperature field of roll ring are as follows:firsrly, high temperature contact between work piece and roller rings heat transfer and heat radiation; secondly, cooling convection cooling of the liquid; thirdly,roller ring in thermal radiation in the air.
An analysis in this article is intended primarily for those three factors.
ANSYS Mechanical Engineering essence 30 cases.

INTRODUCTION AE technique by detecting the phenomenon has become a passive dynamic NDT method, which has been widely used to study material properties and monitor running state of all kinds of equipment [1-4].
There may exist several factors affect the performance of AE detection [5].
The existence of noise affects the credibility of the AE detection technique and attenuation characteristics of AE signals across equipment are the basis of NDT [6-8].
Fig. 2 Waveforms in interface tests As a result, the interface has effects on attenuation and the relative scale of structures constructed a discontinuous interface is one of the main factors.
Mechanical Engineering Science Vol. 214 (2000), p. 1141-1149

In order to solve this problem, a high accuracy grinding method using a large cup wheel had been proposed and the tilt angle of the cup wheel spindle become a crucial factor affecting the ground form errors.
The seal rings are often made of hard materials such as silicon nitride, alumina, silicon carbide and tungsten carbide for their excellent mechanical, thermal properties and chemical stability, and the form error is restricted within the length of one to two helium light band [4, 5].
Journal of Mechanical Engineering, 2012, 48(21), pp: 183-189.
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2013, 227(1), pp: 111-119
A Micro-contact and Wear Model for Chemical–mechanical Polishing of Silicon Wafers.

The specific structure of these CPC, with high surface area and reactivity of nano-crystals, is ideal for in vivo remodeling of new bone and controlled release of protein and growth factors.
The high shear and powerful impact produces an array of calcium phosphate cements (CPC) with different physico-chemical and mechanical properties.
Results The material properties changed most significantly in the first two hours of milling and changed more gradually after that, approaching steady state by 24-h.
Thus, milling altered the initial but not final properties of the CPC.
The existence of the reactive non-apatitic environment prepares the CPC to be biocompatible, highly bioactive, resorbable, and to associate with proteins and bioactive organic molecules such as growth factors.

It is known that a large number of factors influence the formation of adhesive contact and the most important of them are the processes of a consistent adhesive distribution on the surface of the substrate with the formation of chemical bonds, mechanical adhesions, local stresses and defects at the phase boundary.
For injection composites based on CF treated with graphene, an increase in mechanical properties of 20 % appears compared to untreated ones.
The structure and arrangement of the fiber in the matrix plays a crucial role in regulating the mechanical properties.
Carbon fiber fabric reinforced PPS laminates: Influence of temperature on mechanical properties and behavior, Adv.
Taleb, Carbon fiber fabric reinforced PPS laminates: Influence of temperature on mechanical properties and behavior, Polym.

The packaging film based on TPS possesses low mechanical properties and high moisture sensitivity.
Retrogradation causes detrimental effect to the TPS films as it will alter the mechanical properties and affect the quality of the final product.
There are many factors that lead to the retrogradation in the TPS films such as humidity, storage time and glass-transition temperature, Tg [6].
Hybrid fillers were studied extensively for enhancing the mechanical properties of the TPS films.
The mechanical properties of TPSF and HTPSF aged for 15, 30, 45, 60, 90-days are shown in Table 1.