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In this study the damping property of the R-Rubber composites were tested in the dynamic mechanical analysis (DMA).
But even a tiny amount will affect the quality.
However it decreases the tensile strength yet and the viscoelastic properties of rubber are invalid just as the filler [7].
The dynamic mechanical properties of various binary R-Rubber/AO2246 systems were investigated by DMA, so as to illustrate the possibility of expanding the application of textile reclaimed rubber to other fields.
A possible explanation is that the formation of intermolecular hydrogen bonding due to the right amount of AO2246 crystallizing contributes to improve the mechanical properties of R-Rubber/AO2246 blends, especially the strength and toughness.

There are many factors that affect selection of a casting process for producing a specific aluminum alloy part.
The most important factors for all casting processes are feasibility, cost factors and quality factors.
Quality factors are also important in the selection of a casting process.
When applied to castings, the term quality refers to both degree of soundness (freedom from porosity, cracking and surface imperfections) and levels of mechanical properties (strength and ductility).
As we can see from literature review the pouring temperature is one of parameter that may effect on mechanical properties and microstructure which will influence quality.

University of Minho, Campus de Azurém, 4804-533, Guimarães, Portugal apeixinho@dem.uminho.pt Keywords: Open-cell foams; Mechanical properties; Finite element analysis.
The latter requires knowledge of the relationship between their morphology and their overall properties [1-3].
Although the relative density is the most dominant factor in determining the behavior and strength of a metal foam, other parameters such as cell topology and material properties can also have great influence on its mechanical behavior [1, 3, 7-9].
Table 2 summarizes the properties of this material with a bilinear isotropic hardening.
Ashby, Cellular Solids: Structure and Properties, second ed., Cambridge University Press, Cambridge, 1997 [3].

Rheological Properties and Segregation of Fresh UHPC with Fibers Affected by Initial Temperature of Concrete Mix Tomáš BITTNER1,a*, Karel HURTIG1,b and Dita JIROUTOVÁ1,c 1CTU, Klokner Institute, Solinova 7, Prague 6, 16607, Czech Republic aTomas.bittner@cvut.cz, bKarel.hurtig@cvut.cz, cDita.jiroutova@cvut.cz Keywords: Segregation, Fibers, Temperature, Properties, UHPC, HPC.
The results have been compared by degree of changes in rheological properties and mechanical parameters.
The critical factor for a properly designed UHPC mixture with steel fibres has been its stability with respect to the distribution of fibres throughout the cross-section or avoiding excessive segregation in the cross-section, while maintaining the properties typical of HPC.
Rheological properties of ultra-high-performance concrete - An overview.
Estimation of rheological properties of UHPC using mini slump test, Constr.

As the only process which allows changing shape and mechanical properties of the component at the same time, HCDF occupies an important position in manufacturing processes.
As it is well known that the flow stress and mechanical properties of the forging component may be significantly affected by changes in the strain rate, microstructure and temperature during the forming process.
Hence, as new materials continue to arise, it is necessary to investigate all mechanical and physical properties of them so as to estimate stresses, strains and strain rates during the forming process.
Precision forging technology can be defined as a series of measures, which affect improvement of one or more of the above mentioned factors, and due to that the quotient of the mass of the end-component and the mass of the forging component tending to zero while the machining allowance remains the same [1].
In addition, the mechanical properties could be improved if there is no convection while cooling.

In present work, the force-state mapping technique is successfully applied to the honeycomb paperboard dynamical properties modeling problem.
A experiment system is set up to learn the dynamic properties of the honeycomb paperboard.
Experiment results show paper honeycomb structure factors, have a certain effect on the impact behavior of paper honeycomb sandwich panels.
Tab.1 Parameter values of honeycomb paperboard L[mm] 30 40 50 60 k[106N/m] 12.508 9.242 7.628 6.070 c[Ns/m] 849.9 840.0 705.3 633.7 k3[1010N/m3] 2.469 47.815 176.980 240.372 Damping ratio 0.0380 0.0389 0.0404 0.0406 From Tab.1, the height of the honeycomb paperboard L is an important factor who affect the dynamic properties.
The model for the dynamic properties of honeycomb paperboard can be used to predict the vibration transmissibility of the packaging system.

Within a certain scope, increasing ignition timing angle appropriately can improve property of combustion.
All these results can help to optimize the parameters that affect the combustion, and provide certain reference for the further study blast-furnace gas engine.
And it is based on the following assumption: (1) the gas injected into the cylinder is ideal; (2) the pressure and the temperature of the environment keep unchanged; (3) the initial conditions of each cycle are the same; (4) there are no leakage and disaffirmation factors; (5) the mixture is even in the process of combustion [4].
Basic equation The operation process in the cylinder is rather complicated, including physical, chemical, mechanical elements and so on.
Within a certain scope, increasing ignition timing angle appropriately can improve property of combustion.

The research programs aimed at developing the new methods for designing compounds and evaluating the performance properties of asphalt concrete are becoming widespread.
The structure of asphalt concrete is characterized by the mass ratio of grains of various sizes, their shape and properties of the mineral material, as well as the structure and properties of the binder.
The basic physical and mechanical properties of asphalt concrete are determined by its structure.
The research aimed at obtaining its optimal compositions and properties has been conducted for a long period.
All this suggests that the laboratory AP should carry out continuous monitoring of the asphalt mixture composition quality, which affects the physical and mechanical performance characteristics of the coating.

Alginate nanoparticles are obtained by diverse methodologies and the physical and chemical properties can be affected by production techniques and the molecules incorporated.
The structural characteristics of alginate i.e., a ratio of M and G, sequence, G-block length, and molecular weight, are critical factors affecting the physical properties and also the formation of hydrogel and when alginate molecules have longer length of G-block and higher molecular weight, the gels present enhanced mechanical properties [3-4].
The wound healing develops by an interaction among cellular growth factors, blood components and extracellular matrix and thus cytokines are key proteins to promote the healing processes [12].
To import specific effects on the mechanical properties and bioactivities, the diverse molecules can be incorporated into the materials.
Mooney, Alginate: properties and biomedical applications, Prog.

These factors contain honing speed, reversing acceleration, oil-stone.
This paper studied the influence factors of reticulate pattern quality and honing efficiency.
The conclusion: in addition to consider such factors as honing machine power, rigidity of honing head and fixture ,the most important selection principle is that: according to different machining process, physical properties of oil-stone materials, the requests of circular degree and straightness ,oil-stone pressure can be selected reasonably.
Conclusions This paper studied the influence factors: honing speed, reciprocating reversing acceleration, oil-stone pressure and the physical properties of oil-stone, how to affect honing efficiency , It can draw three conclusions through the above analysis
[6] Baofu Zhou, Mechanical Manufacture, 2 (1998) p.17-18.