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According to Kim et al [1] most synthetic polymers can be modulated with respect to molecular weight, degradation rate, and mechanical properties.
The increasing of the PCL weight through the scaffold samples caused the improvement of mechanical properties.
Mechanical properties also influence specific cell functions within the engineered tissues.
Also, the increasing of the PCL weight caused the improvement of the scaffolds mechanical properties.
Calcite: Formation, Properties and Applications.

Introduction Alumina is one of the preferred ceramic materials for armor applications due to its outstanding mechanical properties, including strength and hardness, as well as having relatively low manufacturing costs [1].
The porosity is a mechanical defect which lowered the flexural strength of all the samples to some degree.
It was found that both PVA and glass content strongly affected the adhesion property to the alumina surface.
More factors need to be studied, including adhesive de-airing and thermal debinding, as low porosity, good densification, and strong adhesion are essential requirements for armor ceramic manufacturing.
Silva, Structural, electrical and thermal properties of borosilicate glass-alumina composites, J.

Several factors affect the surface roughness such as the machining parameters, the cutting tool properties, the workpiece properties, and the cutting phenomena [1].
Therefore, the temperatures generated in the cutting zone are an important factor to take into the consideration.
Hence, the dynamic cutting temperature is the important factor that can help to explain the chip breaking.
Somkiat: Journal of Advanced Mechanical Design Systems and Manufacturing (2007), p. 366 [10] J.
Stephenson: The American Society of Mechanical Engineer.Vol.113 (1991)

And micro-slip is an important factor to effect the energy dissipation, from the fretting characteristics, the damping and stiffness of connection, superficial effect and control engineering [2].
Thus, one is led to search for alternative representations of the energy dissipation induced by mechanical interfaces with larger structural models.
The significance of this work is to study the interfacial interaction parameters, e.g., pre-stress or pre-mechanical, joint clearance, kinematical velocity, on how to affect the dynamics response behavior of the translation joint.
Standard elastic properties for the steel are used: Young's modulus, Poisson's ratio.
The fundamental linear static is investigated and the interfacial interaction factors are considering in the studied, for example, the kinematics joint clearance changed with itself and the distribution pressure applied on the system is conduced the clearance variably.

Very often, only a thin layer of material, with high functional properties (e.g. high anti-corrosive properties at higher temperatures), applied on a relatively inexpensive base construction material is enough to fulfill the assumed customer expectations.
The processes described above leads to important structural changes in the subsurface areas of the bonded plates, strongly affecting the macroscopically measured ‘parameters’ characterizing the properties of the clad.
The rate of the heat transfer, the severe plastic deformation and the high pressure are the most important factors which induce the melting of the material close to the weld interface, and more generally, control the reactions occurring at the boundary between the solid and the liquid phase.
The rate of the heat transfer, the severe plastic deformation and the high pressure are the most important factors which control the reactions occurring at the Fig. 1.
The described processes lead to important structural changes not only inside the intermetallic inclusions but also in the subsurface areas of the bonded plates (e.g. inside the microstructure of the bonded plates near the interface); these changes strongly affect the macroscopically measured parameters characterizing the properties of the clad.

Change of bridge’s dynamic performance reflects the change of the stiffness properties of bridge, so the bridge's dynamic property obtained as the main index to evaluate bridge’s health status, namely gained the "fingerprint" of structure.
As for the suspension supporting structure of the bridge, its suspension system (stay-cables) not only affects dynamic characteristics and mechanical characteristics of the main girder structure and itself under the interaction of alternating stress.
The main factors to influence vibration characteristics of bridge girder are the stiffness in structure itself, the mass distribution, damping etc.
Environmental temperature, cable force, traffic, vibration of cable tower and wind also affect vibration characteristics of the main girder.
T., Grigoriu M.: Random Vibration of Mechanical and Structural Systems (Prentice Hall Publications, Englewood Cliffs, New Jersey 1993)

They have great mechanical resistance and they can be improved constantly by changing the components to achieve the targeted properties.[1] Most prosthetic works are made of metal-ceramics or metal-acrylate.
The microscopic image shows that the metallic structure is not affected by corrosive agents and did not break under the mechanical strain.
Usually the materials qualities concerning mechanical properties, chemical resistance to aggressive substances, wear resistance are reflected in the high costs of the prosthetic works which become unaffordable to certain categories of people.
Among the studied structures we found that the chrome structure is one of the best affordable, the allergic reactions are scarce and the mechanical and chemical properties very good.
The gaudent structure which used to be often encountered in the past might be cheaper but its properties are much lower.

The fallowing facts are the main factors to be considered in the design of the countor detection system
The roughness is presented in two Physical Properties: big variation in the angle of the reflective surface caused by the shape and reflective Level caused by the color grade of the material.
According to the above five factors, the sensor must works well in a strong light，dense smoke, high temperature working environment.
The accuracy of the optical grating is 10μM; the total error of the mechanical parts is 0.1mm; the whole static error is not greater than 0.11mm.
By analyzing the mechanism of the linear servo system[3], the motion detection system transfer function is : where the parameters are: Ka: driver amplifier factor.

Unfortunately, these two properties are in conflict with one another.
Based on this understanding, studies are required to better understand the factors influencing the shrinkage and cracking of glossy ink jet coatings containing nano particle metallic oxides.
The optical properties of the whole coated paper dominate the print density achievable.
Salmen: Cell wall properties and their effects on the mechanical properties of fibers.
Moss: Effect of calendaring and wetting on paper properties.

A New Structure Design Method for Improve Modular Joint Output Performance in Modular Robot Xiao Li1,a, Hanxu Sun2,b, Yingwen Tang2,c, Jingzhou Song2,d 1School of Mechanical Engineering and Automation, Beihang University, in China 2School of Automation, Beijing University of Posts and Telecommunication, in China alxwishyou@163.com, bhxsun@bupt.edu.cn, c1061451674@qq.com, sjz2008@bupt.edu.cn Key words: Modular robot joint, Structure design, Joint output torque.
Because the structure of module is simple and the similar module has same properties, we just need to make some simple modules to form the complete robot system, the manufacturing cost is low.
Because each module of robot is designed as simple structure, a single module has high stability, additionally, each module in the whole system can realize limited function and has limited influence to the system’s performance, which means the system will not be affected too much and can continue its work even if some modules fails.
The theoretical power consumption is .Take the power factor as 2, then the power of electric machinery is .
ASME Journal of Mechanical Design, Vols.114 (1992), p. 117-125 [4] http://www.amtec-robotics.com/1275.html B.H.