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One of the important factors in assessing the quality of epoxy coatings is their climatic resistance.
The action of heat, moisture, sunlight and oxygen, as the main climatic factors, initiates destruction processes in epoxy materials, the occurrence of which may be evidenced by a change in the mass of the samples and a decrease in their physical and mechanical characteristics.
Lankina, Assessment of changes in the decorative properties of protective coatings under the influence of UV irradiation, Bulletin of Mordovian University. 4 (2008) 128-133
Korenkova, Influence of the Sequential Impact of Climatic and Operational Factors on the Properties of Fiberglass Plastics, Aviation Industry. 1 (2004) 45-48
Rakitina et al., Investigation of the effect of heat and humidity on the properties of epoxy glass fiber laminates, Plastics. 9 (2008) 14-17.

Introduction To realize significant cost-saving, increasing of operating pressure and deterioration of serving circumstance[1], properties of strength, toughness, weldability, anti corrosion, anti-HIC and anti-SCC for pipeline steel are more strictly required.
Pipeline steel properties are controlled fundamentally by the chemical composition and the cleaness, especially the content of non-metallic inclusions.
Inclusions are one of the dominant factors affecting HIC which are usually considered as irreversible trap sites in steel [9].
Inclusions, especially the large scale inclusions are the most harmful to mechanical, anti-HIC, anti-SCC and other properties for pipeline steel.
To avoid the influence of inclusions on the properties of pipeline steel and mis-down grade induced by mold entrapment during the period of drastic changing of casting speed, the increasing rate of the casting speed approaching to stead casting state should be adjusted more evenly.

The corresponding material properties are summarized in Table 1 and are modeled having an isotropic behavior [7,8,12,13].
Normal stresses, either tensile or compression, will be analyzed to evaluate the strength of implant material, its safety factors and the rate of healing.
Thus, plastic deformation will not definitely arise, and all safety factors have positive value.
Their performance from a viewpoint of material strength, safety factors and healing rate are analyzed.
Zdero, Biomechanical properties of an intact , injured , repaired , and healed femur : An experimental and computational study, J.

Shear and volume strains resulting from the austenite-martensite-transformation affect the development of residual stress during welding.
The conventional methods to introduce compressive residual stresses in the weld line are thermal and mechanical in situ and post weld treatments.
The composition and the mechanical properties for the stress relieved S690Q base metal is shown in Table1b.
Table 1: a) Test weld designation, chemical composition in wt-% and experimentally determined transformation temperatures of the LTT alloys. b) Chemical composition and selected mechanical properties of S690Q base metal.
The EDXRD data were fitted using a PVII function and the phase specific lattice parameter dhkl converted into the unit cell parameter ahkl, which were subsequently used to calculate a weighted average unit cell parameter a by using the multiplicity factor mhkl as weighting factor.

MEMS based resonators with tens of square microns in size have been showing great quality factors (Q) of more than 10,000 in research lab for more than a decade.
This problem mainly caused by the changeable physical properties of the materials according to the around environment, such as the temperature, and the complicated manufacturing process.
The thin film SiO2 is used as the first layer of the resonating element because of its high inherent mechanical quality factor and stress free properties.
So the change of will not affect the resonance frequency of the resonator.
White, MEMS Mechanical Sensors, Artech House, Boston, 2004

Due to its large emissions,complex component ,high toxicity,high cost but poor effect traditional mothed to deal with, it has become one of the difficulties in wastewater treatment in recent years[1-2].The TiO2 photocatalytic oxidation technology as its fast speed, high efficiency degradation, no secondary pollution, stable chemical properties and other advantages has been recognized as one of the most widely spread technology.
In this study,the immobilized TiO2 photocatalyst was prepared by Sol - gel impregnation method under microwave irradiation, study the factors on the influence of photocatalyst preparation and photocatalytic oxidation reactive gaudy red -3B dye.
At the wavelength of λmax=538nm measure the absorbance value about reactive gaudy red X -3B dye, then according to the changes of absorbance value get the decolorization rate, to rating the influences to activity of the photocatalyst of different reaction factors.
Adjusting microwave power, the highest decolorization rate and best mechanical properties occured when the microwave power was 520W, therefore the suitable microwave power is 520W.
It is because microwave radiation can immobilize TiO2 more firmly, and microwave can effect together with activated carbon, rise mechanical stability; at the same time, microwave may alter the interactions between the TiO2 crystal lattice, which also contribute to the photocatalytic activity.But when frequency of usage continued to increase, the effect of treatment declined.

In the same year, the first paper on the influence of hydrostatic pressures on the mechanical properties of substances was published.
The mechanical force that fills in the missing pressure affects the nature of the stress state of the metal and changes the friction condition on die contact.
The data [5] were used to determine the mechanical properties of the composite components.
The material of the deformable billet has rigid-plastic properties specified by the material model (Eq. 1).
Variable factors Quality criteria Draw-forming λ Die angle, deg.

The sequence is important as different materials have different properties.
However, the properties of the kaolin based geopolymer brick is still need to be considered in term of compressive strength, its resistance to the environment and so on before can be used as construction material.
BnHussain in: Effect of Curing System on Properties of Fly Ash-based Geopolymer Bricks, Int.
Eklund, Factors affecting the suitability of fly ash as source material for geopolymers, Fuel, vol. 89, pp. 992, (2010) [9] Davidovits, J. in: Geopolymer chemistry and properties.
Alkali activation of metakaolins: parameters affecting mechanical, structural and microstructural properties.

Therefore, the purpose of this research is to identify the factors that affect the quality of surface roughness, find out how much influence (% contribution) these parameter factors setting, and determine the optimum parameter combination on the plasma arch machining.
Robust Design The purpose of robust design is to determine the optimum combination treatment by measuring uncontrolled factors (noise) which affect the results of the response.
This research has three factors and three level which can affect the surface roughness of the plasma arc machining cutting results.
Parameters factor setting which affect the surface roughness are as follows: a.
G., Metrology and Properties of Engineering Surfaces (1st edition), Kluwer Academic Publishers, 2001

Furthermore it affects the exchange rate.
Therefore the fluctuations of oil prices should be the monetary factor.
(F-statistic) 0.000 Simulation results are given to illustrate the excellent performance of the statistical properties.
Fig.3 Statistical properties of the fitting equation Although regression results in Table 1 confirm the close relationship between the Brent oil price and the U.S. dollar liquidity, the exchange rate, do not yet confirm that they can decide Brent prices.
Its fluctuation will affect the dollar exchange rate and the liquidity of the global market, thereby affecting the global economy, including china’s economy.