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Zhang et al. [5] proposed a model of describing relationships among functional requirements and structural characteristics, design parameters and uncontrollable factors in non-linear systems.
In reality, design parameters in the physical domain may have variations (∆DP= DP - DP*) caused by changes in the environment including material characteristics, geometrical properties, manufacturing processes, analysis/simulation model accuracy, loads, and/or operational environments.
The above equation shows there are two groups of factors affecting the total squared deviation in FR: the Σ∆DP coming from variations in manufacturing, material and usage; and the inner product of [B] matrix, which amplify the total variance of DP.
Bao, et al.: Chinese Journal of Mechanical Engineer Vol. 45 (2009), p.207-215, in Chinese
Li: Journal of Mechanical Design Vol. 131(2009), p.1-9

Introduction Metal Matrix Composites (MMCs) have many potential engineering applications – in many industries including automotive and aerospace industries; due to their superior mechanical properties such as high strength, high hardness, good wear resistance and excellent weight ratio [1].
MMCs possess the combined properties of metals and ceramics [2, 3].
The structure and properties of MMCs are affected by the type and properties of the matrix, reinforcement and interface [4].
ANOVA was performed to find whether individual factors and their interactions that affect the tool life were meaningful.
The other important factors were cutting speed (16.09%) and feed rate (8.83%).

In addition to compositions content, the hot pressing process parameters are the factors that affect the mechanical properties and the microstructure of ceramic materials.
And the materials is prepared and mechanical properties are tested in order to validate the combination algorithm.
According to above mentioned technology, the materials are prepared and the mechanical properties are tested.
And the output was the main mechanical properties including hardness, flexural strength and fracture toughness.
With the hot pressing parameters working as input parameters, and mechanical property as an output parameter, the optimum mechanical properties can be obtained.

These factors considerably limit the range of UF resin uses.
This is due to numerous advantages that isocyanate adhesives provide over other adhesives, for example: faster press times, no formaldehyde emission, higher moisture tolerance and superior mechanical properties at low resin loading.
These negative factors go against technology researching.
Effect of content of EP on the properties The effect of different content of EP in UF resin on the properties of plywood was shown in figure 3.
The better properties were obtained when the content of EP was 7.5%.

Currently, some scholars had prepared various properties of the activated carbon using rice husk, walnut shell, cotton stalk, macadamia shell, bamboo, wood waste and rod[4-5].
At the same time, the biomass activated carbon preparation factors were shown in table 1.
Fig.3 Influence of the activator concentration on the mercury removal performance Generally believed[6], in the process of biomass raw materials activated, the activator concentration was the most important factor affecting the structural performance of activated carbon.
For this reason, the adsorption properties of the prepared activated carbon for mercury also declined.
(1) In the process of biomass raw materials activated, the activator concentration was the most important factor affecting the structural performance of activated carbon.

The study involved determining the frequency characteristics and the condition for maintaining contact between two sealing rings with completely different elastic properties.
Design and properties of the face packing seal The design and principle of operation (Fig. 1) of the face packing seal are similar to those of a mechanical face seal.
The fundamental difference is that one of the sealing rings in a face packing seal is made of a soft packing characterized by elastic and plastic properties.
The calculations were conducted for two configurations with significantly different parameters in order to show the substantial differences in their dynamic properties.
Gaft, Experimental investigations of physicomechanical properties of packing, Scientific Books, Series Technical Sciences – Exploitation and Mechanical Engineering, Kielce University of Technology, No. 10, Vol. 2, 2008, pp. 115-121.

The use of thin films in optoelectronic and photovoltaic devices is aimed at improving the physical properties of the substrate material.
In solar cells functional layers are used, which often apart from optical properties also have other such as: chemical, mechanical, electrical.
The catalysts are alkaline or acidic and have a significant effect on the properties of the layer.
Among the factors that affect the properties of the layer stands out: · temperature, · concentration and type of precursor, · concentration and type of solvent, · pH of the solution, · polarity of the solvent.
A large number of factors affecting the properties of the layers allows for a variety of shaping of the physicochemical properties of the layers, but also forces continuous monitoring of the production for industrial repeatability.

The impact of hardened steel milling surface structure on mould service load Minli Zheng1,a, Jinhui Xu1,b , Wei Zhang1,2,c, Zhaoxing Zhang1, Tong Wu1 1College of Mechanical and Power Engineering, Harbin University Science And Technology, Harbin in Heilongjiang province 150080, China 2Measurement-control Technology and Instrument Key Laboratory of Universities in Heilongjiang province, Harbin University Science And Technology, Harbin in Heilongjiang province 150080, China aemail:minli@hrbust.edu.cn, bemail:583391331@qq.com, cemail:zhangwei1977@hrbust.edu.cn Keywords: hardened steel; milling surface structure; numerical simulation; service load Abstract.
Mould surface loading state is one of the most important factors which would affect the mould performance in the course of service.
Milling surface integrity seriously affects the service performance of hardened steel, mould failure behavior such as wear and fatigue which not only depend on the material properties, but also relate to the load state[1-4].
It can be seen from table 4 that machining parameters will affect the density of machined surface geometry structure.
Through the above analysis, it can be know that the mould machined surface load distribution is seriously affectted by the change of surface geometry structure.

This paper examines the mechanical properties of reinforced thermoplastic pipes (RTP) under the influence of external pressure.
However, prevalent work on the mechanical properties of RTP has mostly used laminated plate theory combined with the finite element model and experimental approaches, and has ignored the nonlinearity and interlaminar stress of the material.
Because the functional units were used only for signal transmission and did not affect the overall mechanical properties of the RTP, they were not considered in the mechanical model.
When the winding angle was greater than ±50°, the compression properties of fiber could more fully manifest, the fiber compression fracture occurred.
Effect of temperature on tensile properties of reinforced thermoplastic pipes.

Compared with metals and plastics, engineering ceramics have the properties of high hardness and high strength, and they have much superiority to be used as tribological parts.
The mechanical processing may result in some defects and damages on the ground surface of ceramics, and may affect some properties such as mechanical properties and optical properties etc. [1-2].
The mechanical properties of ZTM are listed in Table 1.
Table 1 Mechanical properties of ZTM ceramics Hardness HV [GPa] Fracture toughness KIC [MPa.m1/2] Mass density � [g/cm3] Flexural strength � f [MPa] 8.2 4.5 3.51 329 Journal Title and Volume Number (to be inserted by the publisher) 367 The counterparts in wear tests were GCr15 steel balls.
But the lateral cracks, which may easily propagate and result in the spalling of materials in friction process, are the main factor to affect tribological performance for ceramics.