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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.

Determination of the equivalent properties for dynamic simulation is not always a direct and straightforward calculation, as they have to represent, not only the static reactions, but also the dynamic behavior, which depends on a more complex relation of the geometrical (area, inertia moment), mechanical (elastic modulus) and physical (density) properties.
But in all these cases, key factors for successful damage detection are, on the one hand, the experimental setup for controlled conditions and to reduce ambient noise; and on the other hand, the assemblage of the finite element model, including mesh refinement, boundary conditions and the material's properties.
In most cases, simple experiments are recommended to define the general properties of the material and the FE model element type.
Properties for the joint were calculated from an inverse problem experiment.
In practical cases for mechanical elements in service, where it is not possible to get specimens for direct tests to get the mechanical properties of the material, this type of technique opens up the possibility for its characterization using simple experimental tests and the SDM method.

Additional factors, such as cost, time, operation and maintainance etc. for remedial technology selection and contaminant bioavailability in soil matrix for remediation target values, were proposed to be paid more attention for specific contaminated sites.
The main properties and characteristic of soils in the site were also investigated, showing that soil moisture is 13.2% to 29.3%, total organic matter is 2.2% to 3.6%, and soil density is about 1.9 g/cm3.
A biopile with a treatment capacity of 450 m3, 28m × 10m × 2m, was constructed on site after the soil excavation and mechanical screening for homogeneity to remediate the PAHs contaminated soil.
Fig. 2 Residual concentration of 16 USEPA priority PAHs after remediation Discussions Besides of remediation effect on contamination removal, some other factors, such as cost, time, operation and maintainance , are most important for remediation technology screening and selection.
Low bioavailability of PAHs in aging soils might have become the most factor affecting the efficiency of biopile and soil washing.

Effects of the Microstructure and Mechanical Properties for Wear Resistant Casting Surface with Vacuum Evaporable Pattern Casting Infiltration Process Dachun Yang 1Faculty of Mechanical Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu 223003, China adachuny@163.com Keywords: high boron steel casting, wear-resistant composite layer, lost foam casting, vacuum evaporable pattern casting (V-EPC) infiltration process Abstract.
Introduction In practice, the casting surface is required with some special properties in many cases, such as wear-resistance, corrosion-resistance, etc.
This way may change microstructures of the casting surface and improve its mechanical properties due to interaction of the molten metal and ceramic particles.
As further investigation on material preparation and mechanical properties, it was used to research and develop composite materials of the casting surface [3].
Carbon content of the high boron steel casting also is another important element which determines its mechanical properties.

The main disadvantage of all metal products is their manifestation of electrochemical properties and participation in electrochemical processes which can flow into the oral cavity and provoke galvanoses, especially for their joint use.
A common drawback, like all other metals, including and noble, used in dentistry, is manifestation of their electrochemical properties and participation in electrochemical processes that can occur in the oral cavity and cause galvanosis.
Its values depend on the chemical composition of the metal inclusion, the state of the surface (roughness, the presence of passivating oxide or salt films), internal stresses (compressive or tensile) due to mechanical and thermal factors in the manufacturing process of dental products.
On the other hand, the composition of the oral fluid and its acidity (pH) affect the values of electrode potentials.
All these factors negatively affect the quality of the protective passive film.

Microstructural properties of porous Ti substrates.
Mechanical properties of porous Ti substrates.
Consequently, the above facts and considerations would suggest the need of changing deposition parameters, i.e. deposition time, in order to affect other factors like the mean pore size.
Hanada, Mechanical properties of porous titanium compacts prepared by powder sintering, Scripta Materialia 49 (2003) 1197–1202
Collings, Materials Properties Handbook: Titanium Alloys.

Introduction Recently, surface texturing as a means for enhancing tribological properties of mechanical components has been indicated by test and application [1-4].
It indicates very clearly that crater depth varies with laser intensity and the function of plasma body correction factor.
On the contrary, smaller crater and heat affected zone is when pulse duration is short.
And heat affected zone is bigger as well.
On the contrary, smaller crater and heat affected zone is when pulse duration is short.

Metal Rubber made by the specific process has excellent mechanical properties.
The wire diameter is decided by the size of products, mechanical and hydrodynamic properties.
The resilience amount of wire is related to the size of the material, material quality, the size of spiral roll and other factors, so the mandrel diameter is difficult to determine.
The concrete mechanical structure is shown in figure 3.
[2] Hongyuan Jiang, HongRui Ao, Yuhong Xia: The mechanical design and manufacturing(2001)

Orientation of fibre preforms is an important factor that affects the properties of short natural plant fibre composites.
Literature reports that dynamic sheet forming (DSF), used for paper production, has the potential to be used to form aligned fibre mats which could improve the mechanical performance of NPFCs [1-3].
Analysis of alignment in such fibre mats would be invaluable for estimating composite properties.
Le, A review of recent developments in natural fibre composites and their mechanical performance.
Efendy, Preparation and mechanical properties of novel bio-composite made of dynamically sheet formed discontinuous harakeke and hemp fibre mat reinforced PLA composites for structural applications.

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.