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Several factors such as their chemical composition, viscosity, porosity, radiopacifiers and antibiotic additives, mixing methods, sterilization, and temperature during handling, mechanical properties and biocompatibility, affect the clinical performance of PMMA bone cements.
Chemical, physical and mechanical properties of acrylic bone cements Commercial bone cements consist of a powder and a liquid component.
Mechanical properties of different ABC according to ref. [4].
The influence of the size and shape of the alumina fillers and the loading on the mechanical properties of the prepared composite were studied using nanoindentation measurements and dynamic mechanical analysis.
Rizkalla, Physical and mechanical properties of PMMA bone cement reinforced with nano-sized titania fibers, J.

By determining the damping properties of structures, the vibration and movement of structures can be controlled.
Very little published data exist on the vibration loss or resistance factors of composite sandwich plates.
Results and Discussion Nine foam-core sandwich plates were tested to determine the vibration mode and damping properties.
It can be seen from Fig. 2 that sandwich plates made by different fabrication processes give different damping properties.
It can be seen from Fig. 3 that fabrication process has a moderate effect on damping properties composite plates.

This negative factor has highly affected the reliability of water wall heating surfaces and led to the need for frequent boiler shutdowns and mechanical cleaning of furnace chamber water walls.
Turbulent gas properties are calculated by use of a two-parameter «k-e» – turbulence model which also takes into account the effect of moving particles.
Such aerodynamic structure positively affects completeness of burning fuel particles in up flow and reliability of subsequent heating surfaces.
Such negative factors of Talovsky coal combustion as undersize of fuel particles and lower surface contact of the aerodynamic lug with the combustion core can be attributed to shortcomings of the selected layout relevant to a specific combustion chamber.
Obukhov, Numerical analysis of the burning of pulverized coal with different thermal properties in the furnace of a BKZ-420-140-2 boiler, J.

The earthquake affected 27 villages and towns of 7 counties in Qinghai and Sichuan Province, affecting 35,862 square kilometers of land as well as killing 246842 people.
After the earthquake, plenty of examples show that the roof is overweight, which is the main factor causing houses collapsed.
Frost volume expansion destroys the wall and reduces soil adhesion between grip strength and influences the mechanical properties of the wall. 2.
Discussion Due to that the different soil properties and different materials, the response to the variation of different soil properties should be understood, so as to take the most appropriate construction technology.
Rammed earth construction relates to the determination and arrangement of load-bearing structure, which can be improved from the following aspects: 1.From the point of view of seismic design for rammed earth quality, through the correct operation of construction technology and reasonable use of unification, the specialized technical staff should be responsible for implementation. 2.In the forming process of rammed earth materials, construction technology, stirring, water, solid work and other factors influence the strength of rammed earth.

In this study, a U-channel bending test with tension were used to evaluate the surface damage resistance of dual-phase (DP) steel against heat treated Mo-Cr cast iron, and a numerical simulation model of the U-channel bending were developed to analyze the interface contact pressure on formed part that is an important influencing factor of surface damage.
The mechanical properties of the tested DP steels are listed in Table 1.
Table 1 Mechanical properties of the tested sheets Materials DP590 DP780 Yield strength [MPa] 428 562 Tensile strength [MPa] 627 835 Hardening coefficient 0.16 0.13 Normal anisotropy coefficient 0.8 0.6 Brinell hardness 175 247 In order to improve the dimensional precision of pressed part, the bending method with a small profile radius is adapted in practical engineering to manufacture the auto-body structure of advanced high strength steel.
The mechanical properties of the DP steels are summarized in Table 1.
For the high pressure region the magnitude of the contact pressure increases with increasing of the tensile strength which is because compassion bending stress proportionally relates with the strength of material, and for the low pressure region its magnitudes are almost the same which are only affect by the friction that relates to the blank holder force on the flange.

The simulation results showed the scan speed is the most significant factor affecting thermal stress, followed by the layer thickness.
Deposition speed: the main effect resulting from the changes of travelling speed is the frequency changes of the material heating and cooling cycle, which essentially alters the degrees of thermal gradients, affecting the thermal induced stresses accordingly.)
The Preparation of the Simulation The acrylonitrile butadiene styrene (ABS) is considered as the feedstock, which is widely used in FDM thanks to its perfect mechanical property.
However, the performance of ABS shows a little change with temperature, Table 1 shows the properties of ABS under different temperature.
The mechanical property of ABS is the same at any part of the model.

Chemical mechanical polishing slurry in CPM is a key factor.
The type, physical and chemical properties, particle size, particle dispersion and stability etc. of polishing abrasive, are closely related with the polishing.
In addition, the polishing pad properties (such as material, roughness, etc.) are also greatly affected the results of CMP[16].
The study shows that the polishing efficiency of chip surface is mainly affected by its pattern density, and its pattern density in different station also affected[19].
Its viscoelastic property is better than traditional polyurethane pad.

The characterisation of mechanical properties of the polymer concrete was realised by determining its strength in a temperature range between - 40 °C and 60 °C.
The aspects of the material development, especially the investigation of mechanical properties and durability of the binders and the polymer concretes, are described in this paper.
Specific characteristics such as particle shape, particle size distribution, chemical composition and impurities, as well as the type and form of organic admixtures influence for example the processing properties, the curing characteristics, the mechanical properties and the durability properties of the polymer concrete.
In general an optimized particle size distribution for minimum binder content and good mechanical properties is made for polymer concrete as well as for cement concrete.
For the use of polymer concrete in building constructions, the change of mechanical properties in dependency on the temperature is an important factor.

Don’t affect to use.
Analysis of causes and mechanism for the rapid floor heave The main factors of floor heave based on similar simulation experiment obtained by Jiang Yao-dong et. are floor rock, rock stress, water, and support strength [4~6].
Of course, for the rapid floor heave, we should do for the prevention: (1) Strengthen the underground geological prospecting, probe the detailed litho logy and structure of roof and floor, change the mechanical properties of rock and improve the strength of surrounding rock.
(2) The causes on rapid floor heave are mainly four factors including the weakening of surrounding, affect by the stress concentration, affect by the gas pressure and floor water pressure rock, and affect of support situation and so on
Therefore, high stress, soft surrounding rock, bad effect of water, the additive effect of influence to mine and supporting pressure and other factors were superimposed on varying degrees for speeding to floor heave, thus rapid floor heave is occurred

Different laser parameters and the resultant can affect the barcode grade profoundly.
He found that contrast and print growth factors limited the laser mark achieving a higher grade.
It can get the deeply understanding and knowledge about the connection among laser parameters and substrate properties with barcode quality.
Conclusions The experiment results and analyses show that the microstructure and micro-components of formations that created by the interaction can affect the barcodes grade level significantly and determine the barcodes grade level
Li: Metal Metallographic Map (Mechanical Industry Press, Beijing 2006)