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The microstructures characterized by SEM revealed that the high porosity content and the large size of pores in the thick PEO coating should be responsible for the significant reduction in the properties of cast pure magnesium.
All tests were performed at ambient temperature on an Instron machine equipped with a computer data acquisition system.

Abstract:Based on the principle of hydraulics,an effective equipment of hydrodynamic cavitation is designed and built in this paper.The orifice plates with various geometry size were used as hydrodynamic cavitation generator to study the relation ship between many factor,such as,inlet pressure,discharge,flow speed in orifice,and the cavitation number.Analysis of water flow cavitation status for the experimental unit,this device can produce cavitation phenomenon.The methylene blue and spectrophotometer method can capture the free radicals generated successfully.This is an effective way to measuring the free radicals quantitatively in cavitation,moreover it is easy to fulfill.The intensity of cavitation increases with reduction in the cavitation number.By analyzing the influence of cavitation number on concentrations of •OH.It would be strength of hydrodynamic cavitation.The effect of operating parameters,such as inlet press,low speed in orifice and optimum the structure of hydrodynamic cavitation
Water flow cavitation number Cv's impact on the concentration of •OH.At a pressure P=0.12MPa,0.15MPa,0.2MPa,0.25MPa,0.30MPa,were measured under the conditions of the plate 1,2,4,5,6 5 group Cavitator cavitation data.Detecting the concentration of hydroxyl radical in the corresponding state,and to obtain the relationship between the cavitation number and hydroxyl radical production,as shown in Figure 5.

Equations for calculation of the thermal conductivity coefficient and heat capacity of tungsten billets were obtained in the temperature range of 700 - 1500°C, based on the literature data.
Combined heat-exchange coefficient αc was calculated from the formulas obtained on the basis of statistical processing of experimental data: for cooling without reflection shield (bare pipe): ; (2) for cooling with reflection shield: (3) where t - metal surface temperature, ºC.
Equations for calculation of the thermal conductivity coefficient and heat capacity of 11x11 mm tungsten billets were obtained in the temperature range of 700 - 1500°C, based on the literature data. 2.
[28] S.A Snitko, A.V Yakovchenko, Influence of the axial reduction conditions on the variation in the thickness of a wheel rim at the initial stage of rolling, Metallurgist. 61(5-6) (2017) 387-393

In order to solve the problem of Diesel natural gas dual fuel engine, such as power reduction, low charging efficiency, the conception of diesel engine fueled with pilot-ignited directly-injected liquefied natural gas is put forward.
Conclusions 1) By analyzing the three groups of simulation data, delaying the injection timing for LNG will reduce the mean pressure peak and the mean temperature peak and increase the amount of NOx emission, but with the postpone of the injection timing for LNG, the indicated power performance becomes worse and worse.

Increasing pore size results in the reduction in its strength.
Such model representative achieved exploring membrane fracture and deformation and their mechanical properties are also comparable to experimental data [7].

TEM results suggested the reduction of mechanical properties of samples was attributed to the coarsening of Ω phase and the precipitation of θ phase during thermal exposure.
After experienced designed exposure process, the specimens were stretched to fracture to get a series of data about residual strength and ductility (i.e. tensile strength, yield strength and elongation).

Furthermore the proposed based isolation systems has enhanced performance in terms of response reduction and re-centering capacity.
All dimensions, material charachterisitics, mass of the structure and other necessary data for modeling are extracted from the paper presented by Ohtori et., al. [4].

The experiments were carried out in the Gleeble-3800 thermal and mechanical simulator in the temperature range of 770-970˚C and strain rate range of 10-3-10s-1, and height direction reduction of 70%.
By plotting the experimental data, the results demonstrate that there were nearly line correlations between lnσ and lnε, 1/T, and lnε, show as Fig.3-5.

The advantages of the LIPCA design are weight reduction by using the lightweight fiber reinforced plastic layers without compromising the generation of high force and large displacement, and design flexibility by selecting the fiber direction and the size of prepreg layers.
The power consumed by the actuator can be determined by using Eq. (7) based on the measured capacitance data, the input voltage, and the driving frequencies.

The introduction of the solution provides a reduction in the setting time of cement without loss of strength both at the initial and at the final stages of hardening.
Results According to the obtained data, the introduction of bacterial inoculum and precursors in a solution of biocarbonization initiators does not affect the water consistency and consistency of the cement paste, regardless of the concentration (Table 1).