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In the present study, the effect of compositions on the mechanical properties of zirconia-alumina multiphase ceramics was studied.
Introduction ZrO2-Al2O3 multiphase ceramics have attracted much attention because their mechanical properties are more excellent than the single-phase ceramics, and many researches have been done on them.
Results and Discussion Fig.1 shows the mechanical properties of zirconia-alumina multiphase ceramics with the change of composition.
In Transition zone, the mechanical properties of (Y,Ce)-ZrO2/Al2O3 multiphase ceramics were complex.
It was found that stress-induced transformation toughening of ZrO2 and dispersion strengthening of Al2O3 were the two main factors that affected the mechanical properties of ZrO2-Al2O3 multiphase ceramics, which were also relative to the microstructure of the multiphase ceramics.

Additionally, samples were evaluated using dynamic mechanical analysis, and the results suggest that the obtained MMC could have very good mechanical properties, similar or superior to the aluminium alloys commonly used for structural applications such as 6XXX family.
Just like the kind, size, shape and quantity of reinforcing particles affect the properties of a MMC, also the fabrication technique has a considerable influence.
A very interesting process is the semisolid technique; highlighting the work of Du et al [7] who used thixoforming in a semisolid state for produce Al-MMC reinforced with high alumina contents, obtaining excellent mechanical properties.
The study has relation with some phases formed in the material during the fabrication process and the transformation of this phases during heat treatment, the distribution of the reinforcement (slag) and some guiding about the mechanical properties determined by means of dynamic mechanical analysis (DMA).
The generation of intermetallic phases normally considered harmful for mechanical properties are easily modified by means an adequate heat treatment, transforming partially the metastable phase Al6(Fe, Mn).

Introduction DLC coatings have drawn much attention in recent years because of their excellent mechanical properties, including great hardness, high wear resistance, low coefficient of friction [1].In addition , DLC is chemically inert, materials such as 304 stainless steel coated with DLC are likely to show huge potential in biomedical filed [2,3,4,5].
The surface morphology and roughness are important factors affecting the adhesion strength of coatings-substrate ,since not only suitable surface morphology can increase the mechanical interlock between the coatings and the substrate but also suitable roughness can promote the nucleation which reduced internal stress during initial stage of deposition [18,19].
Combining with the result in the previous section: the longer etching time, the greater surface roughness, the result indicate that the roughness is not the only factor affecting the binding strength but the surface morphology may be particularly important.Fig. 5 is photograph of Rockwell indentation of DLC coatings on substrate (a)without etched(b)chemically etched(c)electrolytically etched.The chemically etched substrates and the electrolytically etched one here are the same roughness.According to Fig. 5,coatings spallation on etched substrate both decrease in the edge area of indention compared with coatings on substrate without etching.Coatings spallation reduce more on electrolytically etched substrate than that on chemically etched substrate.In addition, in the central area of indention ,the coatings spallation on electrolytically etched substrate reduce much more than that without etching.
Fig. 5 Rockwell indentation of DLC on (a)no etched(b)chemically etched(c)electrolytically etched substrates a mechanical interlock by hole b mechanical interlock by cave Fig. 6 Micro model of coating-substrate combined As shown in Fig. 2, the surface of dense honeycomb hole structure is beneficial for coating atoms to form strong pinning effect.
Qi: Materials for Mechanical Engineering, Vol. 69 (1988), p.31.

Used the influence of technological factors of the rolling process on the intensity of the rolling out of the defect to determine the value of deformation and the coefficient of use of the plasticity resource.
Quality of sheets and strips determines by the accuracy of their size and shape, chemical composition and physic-mechanical properties of steel, surface quality [1].
The surface of hot rolled and cold rolled strips and sheets for one reason or another often affected by defects.
In this regard, it is important to identify the factors influencing on the formation of such defects [3].
To determine the value of deformation and the coefficient of the plasticity resource at the stage of transformation of the surface defect use the influence of technological process factors on the intensity of the rolling out of the defect.

The properties of coatings received by means of a vacuum arc method are considered.
At the second stage coating which properties are defined by heating temperature of a processed surface is created.
Mathematical modeling of a vacuum arc discharge process is complicated because of multiple factors of the process as well as combined interrelation between different parameters (Fig. 1).
Content of drop fractions causes premature corrupting of coatings, corrosions and lowering of their operational properties.
Interrelation between parameters defining properties of formed nitride coatings For the synthesis of nitride compounds as a reaction gas chemically active molecular nitrogen with a strong triple bond is used.

Application enhanced heat transfer technology, a relatively compact structure can be used to transfer the required heat, using enhanced tubes instead of smooth tube is an effective method.Considering the safety, cost, and heat transfer efficiency and other factors, the final evaporation-air-cooled (methanol) built-spring heat exchange tube is more reasonable choice.
The flow channel shape is the key to enhanced heat transfer, corrugated tube flow channel section is alternating between straight and curved pipe section formed, the model shown in Fig.9, due to the existence of the periodic straight section and curved section, fluid flow within the tube is very complicated, thereby change the flow state, to improve the corrugated tube properties of enhanced heat transfer.
Fig. 9 Three-dimensional model of corrugated tube Fig. 10 Corrugated tube temperature distribution However, due to the corrugated tubes of irregular shape and many factors affect the stress distribution, stress distribution from the theoretically more difficult to study, but the actual production, due to stress corrosion and fatigue failure led to more instances of corrugated tube.
(3) Considering the safety, cost, and heat transfer efficiency and other factors, the final evaporation-air-cooled (methanol) heat transfer select pipe built-in spring tubes
Beijing: Mechanical Industry Press, 1987.

While its promotion is still very difficult, the major barrier affecting the application of green strategies is the high initial cost.
Xiaoling Zhang et al. [5] examined the benefits and barriers in applying green strategies in the process of housing development and facilities management, concluding that the major barrier affecting the application of green building was high costs.
What’s more, previous research focused on the factors affecting the cost and benefit while the evaluation and quantity indexes are not given.
But some factors that are difficult to quantify, such as the economic benefits of corporate image brought by adopting green strategies, are not taken into account, so further studies are needed.
[11] Zhang, X.L., Shen, L.Y., Wu, Y.Z., Fan, C.N.L.: International Journal of Strategic Property Management Vol.13 (2009),p.229-245

Defect influence on the electrical properties of 4H-SiC Schottky diodes L.Scaltrito 1,2, E.
We report on the defect influence on the electrical properties of 4H-SiC Schottky diodes.
The devices were fabricated on a n-type epilayer treated by chemical mechanical polishing.
A surface treatment by chemical mechanical polishing (CMP) was done by Novasic to reduce the surface defects density.
The most important results is that the presence of micropipes does not affect the electrical behavior of the devices, which could be ascribable to a partly filling.

Which factors in an enterprise have a good self-organizing adaptive potential, which factors will tend to maintain the original mode?
Review of the Literature Holland defines the complex adaptive system (CAS), "The system is composed of agents affecting mutually which are described by rules".
It is a set of material and physical properties.
According to the path analysis, we can build path model of structural equation affecting the telecom change.
Implications and Conclusion According to this study, organizational mood, leadership, knowledge are the factors which affect the telecommunications organizational adaptability.

Tests were also performed on the pressure-resistant properties of the stalks bales.
Cotton stalks are often 30-90 cm long depending on factors such as their growth conditions and the control of top-cutting.
Fig.6 Cotton stalks bales vertical pressure load-displacement curve Conclusions (1)When density control was used to make cotton stalks bales, the fabricated bales had constant density, and the mechanical properties of multiple bales were fairly close.
When cotton stalks were placed orderly, stalks bales had fairly stable properties
[5] Jin Qiang,Fen Yong, Gypsum-based cotton the straw fiber composite material study of mechanical properties and water resistance performance, 6(2013) ,30-33.