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The total test duration was 60 min to acquire the reliable data in the stable stage with the rotating radius of 4 mm.
The friction coefficient was continuously recorded by an online data acquisition system attached to the tester.
stator materials Density(g/cm3) Hardness（Shore D） Wight reduction ratio phosphor bronze 8.89 - - PEEK 1.35 90.1 85.9% PPS 1.38 86.3 85.5% PI 1.41 87.5 85% CF/PI 1.46 88.1 83.6% Except for different friction behavior, the four kinds of materials also have different wear rate and wear mechanisms.
So, the CF/PI composite was an ideal stator materials judged from weight reduction and mechanical output performance of TWUM.

In industrial production, in order to save energy and reduce working hours, volume reduction of first-rolling of aluminum alloy is generally set to 20% [4,5].
The volume reduction of rolling is 2 mm.
Two data points were picked in the rolled piece surface and internal.
The process of hot rolling belongs to the plastic deformation of metal material; ductile fracture criteria should be adopted.The material stress-strain data of 4004 aluminum alloy from tensile tests assigned to the finite element model of the tensile test.

The function description methods of figures are appropriate for many applications because of their advantages over other methods such as: effective data reduction (frequently only a few coefficients of the approximation functions are needed for a rather precise form description); a convenient description of different forms starting to simple until to the more complex; an intuitive characterization of many form properties.
This method are appropriate for many applications because of their advantages over other methods such as: effective data reduction (frequently only a few coefficients of the approximation functions are needed for a rather precise form description); a convenient description of different forms starting to simple until to the more complex; an intuitive characterization of many form properties.

The study [4] result showed it is possible to analyze the characteristics of the life-cycle CO2 emission reductions and the service life of buildings using green technologies; 36 technologies capable of satisfying the 40% life-cycle CO2 emission reductions target and the 100-year service life target were selected.
Weather data for years of 2013 and 2014 are introduced in Fig. 2.
Fig. 2 Weather data for Košice, Slovakia 2015 - 2017 Family house A is placed by the Hornád River - approximately 30 m.

Silicon loss reduction, metal gate selectivity and strip efficiency are key requirements.
Si loss validation: The process parameters which are responsible for a drastic Si loss reduction were not detected within this DOE parameter space.
It was impossible to fit all Si loss data points in a reliable model.
b) clean surface after DOE run 12 c) still residues after DOE run 3 Figure 2: a) Typical OES spectra of CO and O during a 2-step resist strip process b) Ellipsometric measurement data of TiN loss as function of "crust only" and "crust+bulk" process times.

In addition, the average HTS index and the liquid penetrant results (Fig. 2) show that the SSF route offers further significant reduction of the hot tearing sensitivity over the conventional (liquid) die casting.
The improved castability due to the lowering of the hot tearing susceptibility made it attractive especially in the semi-solid forming applications. 0 2 4 6 8 10 12 14 16 18 AA6061 standard Alloy 2 Alloy 3 Hot Tearing Sensitivity Index Liquid SSF Further significant reduction of the hot tearing sensitivity in SSF Fig. 2.
Nevertheless, according to a simple power law regression on experimental data, the fatigue properties of AA6061-T6 semi-solid material are comparable to those of the standard AA6061 wrought material.
[7] ASM International, Fatigue Data Book: Light Structural Alloys, (1995)

After 1000h the samples which were exposed to deionised water show only slight changes while the reduction of the debonding shear strength of the other samples is significant.
The linearly applied data is shown in Fig. 3 and interpolated with the help of the parameters in Table 1 (n=0.25).
A good accordance between the measured data and the interpolated curves is given with Eq. 2 using n=0.25.
All in all, only long exposure times or a very strong corrosion impact of the medium (NaOH) lead to a clear reduction of the debonding shear strength.

The data, however, about a wettability of pure Ti by molten magnesium, which was necessary to clarify the bonding mechanism, was not completely introduced.
The vaporization of magnesium from the molten drop occurs, and causes the volumetric reduction during measuring.
Compared each data measured by the camera-1 (0°) and camera-2 (90°), the difference of the length (L) and height (H) of the magnesium droplet on the Ti substrate is very small, and the error is less than 3%.
It means that a volume reduction of the magnesium droplet gradually occurs during the wettability test at 1073K, and causes the decrease of the contact angle.

Document Analysis is a research method to extract the necessary data through collection and analysis of literature, and to give an objective and systematic description of the literature.
This study uses Document Analysis to collect data for analysis and comparison to understand the possible causes, solutions and results of the problems.
Second is "Material Science Experiment”, and in three evaluation methods, such as material science application restatement, teaching theme reproduction of disaster prevention and reduction, material science topic drawing, material science applied to the analysis of the learning outcome of disaster prevention and mitigation.
Conclusion The study found that although materials science is a very specialized discipline, but through a simple pre-teaching and teaching design can effectively improve the multi-level 36.5% for materials science students used in disaster prevention and reduction of interest in learning.

The experimental data were interpreted taking into account these two parameters. 2-(dimethylamino)ethyl methacrylate (DMA) was polymerized with monomethoxy-capped oligo(ethylene glycol), OEG, by using aqueous atom transfer radical polymerization (ATRP) chemistry.
Further increase in the cationic polymer concentration results with a reduction in this gelation.
The interaction behaviour between montmorillonite particles and polymers were interpreted by data obtained from rheological and electrokinetic measurements.
Further increase in polymer concentration results with a reduction in this gelation.