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The gas sensing and other properties of the SnO2 materials are affected by many factors.
One such important factor is the microstructure of the SnO2 materials such as their size and shape [4].
In recent years, nanocrystalline SnO2 particles have been used to improve the gas-sensing properties, because the nanocrystalline SnO2 particles have smaller size, higher surface-to-volume ratio, larger proportion of grain boundaries on the crystal surface compared with conventional materials.
Traversa, et al.: Effect of surface modification on No.2 sensing properties of SnO2 varistor-type sensors.
Liu, et al.: Photoluminescence properties of SnO2 nanowhiskers grown by thermal evaporation.

Effect of Nozzle Layout Parameters on the Controlled Cooling of Flat Steel Shaojun Zhang, Dongmei Zhu and Guoyong Liu School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083,China sjzhang@me.ustb.edu.cn Keywords: Flat steel, Controlled cooling, Numerical simulation, Nozzle Abstract.
Relatively the number of nozzle rows affects cooling rate of flat steel greatly.
Different layout parameters of the controlled cooling nozzle will be used by considering different factors.
And the state organization of steel, ratio of the every phase and precipitation of carbonitride are controlled by controlling the cooling rate of the phase transition, so as to enhance and improve the mechanical properties and performance of steel.
The layout nozzle in every water cooling area can affect cooling rate of flat steel directly.

Among all kinds of environmental geological factors, the water permeability has the most significant influence on grottoes.
The more diluent solvent was added in 6# and 7#, the volatile and shrinkage were increased more. 8# added filler, so its shrinkage and weight loss were relatively smaller. ② Mechanical properties of materials(Fig. 1 & Fig. 2) Fig. 1.
The mechanical properties of test scheme 2 were higher an order of magnitude compared with scheme 1, which were all above 10MPa.
Thermal properties of materials (50°C).
The shrinkage and weight loss rate of 11 and 12# were too larger. ② Mechanical properties of materials Within limits, the strength of the material was increased as the curing time extended.

The cast Al-Zn-Mg 7000 alloy has become one of the most potential structural materials in many engineering fields such as aircraft body, automotive casting due to their high strength to weight ratio, strong age hardening ability, competitive weight savings, attractive mechanical properties and improvement of thermal properties.
This process can be used to locally refine microstructures and eliminate casting defects in selected locations, where mechanical properties improvements can enhance component performance and service life.
FSP is a local thermo-mechanical metal working process that changes the local properties without influencing properties in the remainder of the structure.
Grain refinement is an effective means to improve the mechanical properties, e.g. yield strength, fracture toughness and fatigue.
In addition, the knowledge of the fracture properties of Al-Zn-Mg alloys (7000 series) is an important factor for industrial application under failure-safe design.

For finding the properties about heating plastic material, some researchers analyze temperature distribution in poly(ethylene terephthalate), PET, plate when heated [1].
Moreover, the side of preform is one of the factors about the actual receiving the energy from the lamps through radiation.
Moreover, each lamb power intensity is different for a better temperature distribution on the bottle.[6,7] All these factors must be decided before machine working.
We use numerical method to predict the number of all factors first, and then we check the values about all factors with experiments.
The main factors about the lamps are the power intensity of each lamp.

The finite element method has been used to study the relationship between the porosity and the mechanical properties by quasi-static compression simulation.
The basic mechanical properties of AISI 304 stainless steel were simplified by bilinear isotropic hardening model.
The basic mechanical properties of the AISI 304 stainless steel were listed in Table 1.
The mechanical properties of the matrix material at the elastic-plastic stage.
The results reveal that the porosity is the main factor affecting the mechanical properties of the steel-based porous materials, which is consistent with the theoretical formulas (3) and (4). 3.2 Quasi-static compression test In order to demonstrate the accuracy of the finite element simulation results under the quasi-static compression, real quasi-static compression experiment of the steel-based porous material with porosity of 82% was carried out as shown in Fig.4, the lower plate was completely fixed, and the upper plate was displacing uniform velocity (1mm/min) until the end of the experiment.

However, the weakness of these alloys lies in its poor mechanical properties compared with wrought alloys due to microstructural defects such as porosity and segregation introduced during solidification.
This alloy has good mechanical properties having tensile strength of 513MPa and 2.5% elongation.
In order to extend the applications, it is necessary to investigate the SCC properties of the alloys.
In general, two factors are known to affect the electrical conductivity of precipitation hardened alloy.
The highest electrical conductivity in Si containing alloy can be explained by considering two electron path barrier factors together, i.e solute atom and precipitate.

The effects of erosion on turbine depends on certain water and turbine material factors.
Wear resistance and other mechanical properties are function of the hardness of the second phase particles in the matrix [20, 21].
The mechanical properties of aluminium–silicon alloys are often improved by casting technology [23].
These morphological features need to be refined and modified for the alloy to possess better mechanical properties.
Gruzleski:, "Mechanical Properties of A356.0 Alloys Modified with Pure Strontium " American Foundry Society Transaction, pp. 453-464, 1982

Results and Discussion Kinetic and Thermodynamics properties.
For instance, Mn, Cr and Fe atoms have similar DW factors while that of the other ones are much smaller.
Moreover, the tracer diffusivities can be exclusively predicted by DW factors which represent the compactness of the local atomic environment.
On temperature dependence of cooperative relaxation properties in glass-forming liquids.
Thermodynamic properties of Al, Ni, NiAl, and Ni3Al from first-principles calculations.

All these endowed properties to the Fc-chimeric protein made them very attractive molecule for the drug market.
Such kind of factors directly affect properties of ESC in culture thus originate limitation for application of relevant protocols for regenerative medicine.
Collectively these protocols are highly detrimental for cell survival as well as cellular properties.
Takeichi, Functional correlation between cell adhesive properties and some cell surface proteins, J.
Daley, Reprogramming of human somatic cells to pluripotency with defined factors, Nature 451 (2008) 141-146