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Compared with other hard tissue substitutes, CPC has the properties of good biocompatibility, convenient operation, stable capability and conducting the formation of new bone with the adsorption of the material, which make it possible to solve the longstanding problems of bone repairs.
The mechanism of the hydration process, the mechanical properties, physicochemical properties and biocompatibility have been explored in details [5-7] .
Porous Calcium Phosphate Cement Most of the hydration production of current available calcium phosphate cement is dense, which not only affects the biodegradability, but influence the formation of blood vessel, the growth of cells and surrounding tissue into the material, the controlled-release of the bioactive substance, such as growth factor, drug etc.
The formation of networks and the development of the microstructure in the slurry affect not only its flow and injection, and consequently its workability, but also the mechanical properties of the cement after hardening.
Previous studies have showed that sodium alginate could improve the water-resistant property of CPC.

Considering mechanical property of matrix, hot die steel of Cr12 is selected as boronizing matrix.
These characteristics of these corrosive wear surfaces is the function of the properties of the materials suffered wear.
If the wear is the main mechanism of the corrosive wear, the hardness would affect the wear property according to wear theory, the fundamental precept in wear is that wear resistance increases with hardness [12].
The lack of hot hardness data for materials at test temperature makes it difficult to relate the performance of materials in molten zinc to their mechanical properties.
Ratio of hardness of corrosion products to matrix is the key factor to corrosive wear performance, which is bigger, the corrosive wear performance is worse.

Bipolar plate is one of the key components of the proton exchange membrane fuel cell, not only affects the performance of the battery, but also affects the cost of the battery, which is become a bottlenecks.
It has invested a considerable period of time in the research on material properties and chemical reactions, and of course, it has found some better materials.
They are very important design specifications in the design of the flow, determining the line speed that reaction gas flowing through the field in and the contact area between reaction gas and electrode diffusion layer, affecting contact resistance and efficiency of fuel gas.
Mechanical processing methods of non-porous graphite bipolar plates are: cutting, grinding and polishing.
Metha [13] agreed with Woodman’s views and took the design factors into account for the metal plate, then increased processing methods up to five: common closed die forging, die casting, melt casting, metal powder forging and electroforming.

Numerical Analysis for Galloping of Iced Quad Bundle Conductors Junyan Cai1,2,a, Xijun Liu1,2,b and Suxia Zhang1,2,c 1School of Mechanical Engineering, Tianjin University, Tianjin 300072, China; 2Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control, Tianjin 300072, China acaijunyan1987@126.com, blxijun@tju.edu.cn, czhangsux@tju.edu.cn Keywords: Bundle conductors, Galloping, Spacers, Anti-galloping Abstract.
Simultaneously, the relation curve between elastic property of spacers and conductor galloping is obtained.
In companion papers, the influence of various factors such as non-linear aerodynamic loads and non-uniform ice geometry on conductor galloping was taken into account by Q.
The galloping of iced quad bundle conductors often causes line break and the damage of conductor components, which seriously affecting the normal operation of transmission lines.

In some cases, the problem also was extended to find proper distributions of the structural fixations and connections to improve different structural performances like stiffness or dynamic properties [6,7].On the other hand, some works on the multi-fasteners were done to analysis stress and predict the failure [8].
At this point, the shear load on the joint fastener becomes a critical limiting factor in a weighting saving design.
Also we discuss the different constraints value how to affect the optimization process.
Summary In this paper, we discuss how the value of the fasteners pin load constraint affects the optimal results.
Chirehdast : Journal of Mechanical Design Vol. 119 (1997), p. 40 [7] T.

Preparation and Magnetic Properties of Ball-milled and Subsequently Hot Pressed Fe77Al2.14Ga0.86P8.4C5B4Si2.6 Bulk Metallic Glass J.
The other restriction which can affect bulk glass formation is impurity content in the melt, which may initiate heterogeneous nucleation [12].
Upon ball milling impurities in form of the wear debris from the milling tools (mainly iron) and oxygen contamination, mechanical stress and surface roughness are introduced into the material, which changes the structural and magnetic properties of the ball-milled powder compared to the melt-spun ribbon.
The coercivity measurements reveal that the ball milling process significantly influences the soft magnetic properties characteristic for the ribbon.
In agreement with the reduction of the coercivity of the ballmilled powder upon annealing, one can prepare bulk amorphous samples with good soft magnetic properties by combination of pressing and annealing (hot pressing).

Concrete Mixture Properties.
According to Chinese specification (JGJ55-2011) [7], the properties of concrete mixture are obtained as shown in Table 1.
Table 3 Test results of concrete Strength grade Chloride diffusion coefficient [10-12m2/s] Cube crushing strength [MPa] 56d 84d 7d 28d C20 7.45 4.78 16.9 23.4 C30 4.05 2.48 24 38.2 C40 3.14 1.68 34.4 46.5 C50 2.35 2.11 40.3 52.2 Microcosmic pore structure properties results of different strength grade concrete specimen at different age are shown in Table 4.
Water-binder ratio is the most important factor that affecting the pore structure of concrete.
[11] GB/T 50081-2002, Standard for Test Method of Mechanical Properties on Ordinary Concrete, China Building Industry Press, Beijing, 2002

The use of this material for safety applications requires the identification of the mechanical properties of these cellular materials under different kind of loading and in a large range of strain rates.
The properties of these components are resumed in table 2.
Since one wants to establish response surfaces (for each response E, and ) as a function of the three parameters D, e and , the estimation of the quadratic model can be obtained using a 3 factors Box-Benkhen Design.
Brechet, Quasistatic mechanical behaviour of stainless steel hollow balloon foam: Macroscopic properties and damage mechanisms followed by X-ray tomography, Materials Letters, Volume 63, Issues 13-14, 31 May 2009, Pages 1113-1116, ISSN 0167-577X [2] S.
B., Uniaxial tensile elastic properties of a regular stacking of brazed hollow balloons, Scripta Materialia, 2003, 48, 1617-1623 [3] H.B.

Design and Simulation of the Cleaning parts of Comb-Type Cotton Picker Yiping Yuana, Wenlei Sunb, Shuai Huangc and Yiyou Nid Yanan road 1230# Tianshan district Urumqi xinjiang China, Mechanical Engineering College of Xinjiang University ayipingyuan@163.com,bsunwenlei007@163.com,c huangshuai9228@126.com,dniyiyou@163.com Keywords: Comb-Type Cotton Picker; The Transmission System; Key Components; Simulation Abstract.
Its working performance directly affects the complete machine efficiency.
But “hardly pick up’” has been one of the factors inhibit the development of cotton industry in Xinjiang [1].
The Qing-ling machine transmission sketch map Building three-dimensional model based on Pro/E Adopting bottom-up modeling method in hierarchy to build information model of Qing-ling machine with a hierarchical digital prototype, including visual machine parts model, physical properties model and geometric topology model in order to meet the requirements of different kinds of analysis of Qing-ling machine prototype which the assembled model of products related to Qing-ling machine virtual prototype is built based on.

Introduction Polyetheretherketone (PEEK) is a semi-crystalline polymer having a unique combination of high mechanical properties, heat resistance and chemical resistance [1-3].
In this paper, the effect of polyetheretherketone drying processes on its thermal properties is investigated.
In order to more accurately assess the effect of PEEK drying modes on its thermal properties, we used pyrolytic gas chromatography.
Receipt, properties and application, Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Khimiya i Khimicheskaya Tekhnologiya. 58-3 (2015) 3
Bazheva, Polyetherketones: Synthesis, Structure, Properties, Application (Review), Plastics. 8 (2013) 13-19