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With the development of the pipeline network, advanced mechanical properties become more and more requisite.
So, grain-refinement becomes the most favorable way to promote the mechanical properties of materials.
Thus, it is expected that the application of ECP could improve the mechanical properties of pipeline steels by refining the grains.
Fig. 3 plots the mechanical properties of the samples.
Xiao et. al studied the drive force for dislocation motion during ECP, they suggested that four main factors may affect the dislocation motion under ECP: thermal compressive stress, pinch effect, electron-wind force and temperature effect[14].

Two factors have been pooled which are screw speed and filling time.
Ozcelik et al. [4] used the same method to investigate the influence of injection parameters and weld line on the mechanical properties of polypropylene during plastic injection.
Finally, he found that the mechanical properties was increased under optimum conditions, and all mechanical properties gave linear relationship with injection parameters.
From the analysis results, the higher percentages pure sum of factor will contribute more affects from these factors to the samples or product.
[6] “Plastics – Determination of Tensile Properties – Part 2 Test Conditions for Moulding and Extrusion Plastics.”

Improved Comprehensive Index Method for the Evaluation of Rock Burst Risk in Mining There are mainly geological factors (mining depth, mechanical properties of coal bed, characteristics parameters of the roof rock thickness, tectonic stress concentration and so on) and mining factors (stopping line of upper terrane, mined-out area, coal pillar, mining speed and so on) affecting rock burst in coal mine.
Determining the affecting degree of each factor and linking the comprehensive index with different risk level, the comprehensive index method for the evaluation of rock burst risk is put forward [1].
Here, is the affecting index by geological factors, is the affecting index by mining factors, and the larger one between them will be used in the evaluation of rock burst risk as the comprehensive index
(9) Here, is the practical risk index of each factor, is the maximum risk index, is the number of geological factors, is the number of mining factors.
The description of the factors and corresponding risk index are seen in the literature [1].

The research can provide some mechanical parameters basis to physical mechanics properties of sandstones.
Introduction Research shows that the pore water in rocks is in the state of freezing and thawing if temperature alternates positively and negatively, and thus the physical and mechanical properties of rocks will be affected under the effect of freezing and thawing.
Therefore, the studies on the physical and mechanical properties of rocks under the condition of water chemical environment and temperature effect are of great importance to know well the deformation and strength properties of rocks.
In the mechanical properties of rocks under the effect of water chemistry, many foreign and domestic scholars also have conducted studies.
Third, rock's strength damage is affected by many factors, and the rock the practical engineering is often under coupling action of many factors.

The results show that the mechanical properties of the surface with 20% MSZ rate are relatively superior.
Introduction The study of materials surface/interface mechanical properties is an important direction of solid mechanics in 21st century [1].
The main factors, which affect materials surface mechanical property under contact loads are 㧦 applied load magnitude, profiles of contact pairs, friction coefficients, etc.
Conclusion The wear properties of the materials are different for varying MSZ rates and surface contour.
The numerical simulation results show that the wear properties are not proportional to MSZ rate, and the wear properties will be better while the MSZ rate of materials nearly equal to 20%.

In this paper, we investigated the impact of four different drying methods on paper physical properties.
Their physical properties were determined after being balanced for 24 hours.
Factors which affect the tensile strength most are the binding force between the fibers and the strength of the fibers, then the length of the fiber.
Conclusions In this paper, we examined the impact of different drying conditions on the paper physical properties.
Rocha, Drying conditions influence on physical properties of recycled paper, Chem.

Mechanical performance of CF/PEEK composites Carbon fiber can greatly improve the mechanical properties of PEEK composites.
However, there are various factors can affect the mechanical properties of CF/PEEK.
They analyzed the effect of molding press parameters on the mechanical properties of CF+G/PEEK composite material.
They found that the mechanical properties are improved if higher forming temperatures are used, but the increase is most dramatic in mode I delamination behavior and the improvement in mechanical properties with forming temperature is due to an increase in interfacial strength between fibre and matrix.
The evaluation of the tensile properties and the short beam shear strength of the consolidated samples suggest that successive consolidations can affect the mechanical behavior of the CF/PEEK composites.

Affected factors such as coating times, oxidation temperature and time were investigated.
Thickness is one of the most important factors on anti-oxidation of alumina coating, and in this work, thicker coatings have better anti-oxidation quality.
Introduction Carbon fibre is widely used in material engineering because of its excellent properties, such as low coefficient of thermal expansion, high modulus and strength, low density, relative flexibility and good mechanical, thermal and chemical properties in high temperature in vacuum and inert atmospheres [1,2].
But unfortunately, carbon fibre exhibits a very poor oxidation resistance in oxidizing environment above 400°C; furthermore, it carbon fibre reacts with most matrix materials of composites during manufacturing, which deteriorates in mechanical properties [3].
Coating thickness, oxidation temperature and time is the three most important factors affect the anti-oxidation quality of alumina coating.

Cement addition (CA), water addition (WA) and wet curing period (WCP) are selected as the effect factors on these two mechanical properties.
Experimental Factors and levels selected for orthogonal experiment are given in Table 1.
For factors of cement addition and water addition, four levels were chosen for each factor.
Chotard, Influence of the thermal history on the mechanical properties of two alumina based castables, J.
Urazova, Refractory cement-free castables: Properties and potential uses in metallurgy, Refract.

The objective of this study was to determine the affecting factors that can possibly change slipperiness of flooring.
Introduction Floor covering is responsible for ensuring the quality, mechanical properties of flooring regarding its intended use, so it is unavoidable to know if it will fit for its purpose.
Hence surface properties of ceramic tiling such as cleanability, slip resistance and its negative changing is an important research topic.
As a matter of fact, surface roughness can be an indicator of the behavior of the different texture, so it can quantify surface properties.
We examined earlier how the cleaning regime effects the change in slipperiness and roughness of ceramic tiles (deterioration in the surface was observed affecting the surface quality).