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In CHINA, a developed dynamic test conducted at a 10:1 scale shrinkage ratio prototype of Qingdao Subway Track Vibration Reduction Structure.
The reduction of structural vibration by the application of surface damping treatments is a standard practice in many industries.
It is useful to express the frequency dependence of the DMA data as a strain rate dependence.
From the DMA data, the peak value of tan d with the peak temperature and the tan d value at different temperature of each viscoelastic damping layer were summarized as follow: polyurea viscoelastic damping material has wide damping temperature range from -10°C to 80°C, which the damping loss factor (tan d) is all above 0.4 in this range.
Conclusion In this work, a new new type of high damping and strong frequency-dependent viscoelastic materials from vibration test data has been presented.

The specimens were tested at room temperature on an Instron 30 kN Materials Test System equipped with a data acquisition system.
The output data, including the displacement measured by an extensometer, and tensile load, were analyzed.
The reduction in the strengths of the alloy treated at T6 condition should be at least attributed to the absence of the Mg2Si intermetallic phase, since the dissolution of the Mg2Si phases would cause the strength reduction in A356 cast alloy. 4.
The analyses of fractography indicated that the fractured faces of T6 A356 cast alloy contain deeper dimples with dramatic height variation, which fit the high elongation data.

They found on average a 4.5% and 4.3% reduction in power and torque respectively.
The equipment is fully compatible with TecQuipment’s Versatile Data Acquisition System (VDAS, available separately).
Using VDAS enables accurate real-time data capture, monitoring and display, calculation and charting of all relevant parameters on a computer (PC available separately) making tests quick and reliable.
A standard 1000ml container was constructed for use as fuel tank and was directly connected to the injector combustion chamber so that precise data will be collected without difficulty and ran for 40 minutes for each sample.
At the start of each test the test engine was operated with base fuel-diesel for about 30 minutes to attain a normal working temperature condition after that base line data were generated and the corresponding results were obtained.

The results show that the structral relaxation , free volume migration and annihilation during the vacuum annealing will lead to the reduction of like-vacancy defects concentration and distortion stress.
The vabrating sample magnetometer(VSM) was used to measure the main soft properties of annealing specimens.The microstructural changes of specimens were analysed by Mössbauer spectrometer and tranmission electron microscopy(TEM).The g-radiation source is 57Co/pd, the data fitting of Mössbauer spectra adopted the MSU8 program.
Fig.2 show the Mössbauer spectra of amorphous Fe52Co34Hf7B6Cu1 specimens after magneto-pulsing and low-temperature annealing .Table 4 show the fitting results of Mössbauer spectra data.

[3] SHU K L.Ray-trace analysis and data reduction methods for the Ritchey-Common Test[J].Applied Optics,1983,22(12):1879-1886
A data processing method in Ritchey-Common test [J].Opto-Electronic Engineering,2004,31(1):24-25.

The initial temperature rises rapidly, and along with fuel reduction, but drops gradually.
Table 3 Test sample compressive strength orthogonal data analysis K1 74.75 39.79 31.93 K2 -21.79 39.37 23.83 K3 -19.99 -13.45 -2.83 K4 -0.03 -32.77 -19.99 k1 18.69 9.95 7.98 k2 -5.45 9.84 5.96 k3 -4.10 -3.36 -0.71 k4 -0.01 -8.19 -4.10 range 24.14 18.14 12.98 scheme A2 B4 C4 Table 3 for the tentative data orthogonal analytical table, from the test result analysis, selected the 2nd level, the 4th level, the 4th level for the polypropylene textile fiber, the silica flour and the carbon fiber, the ratio of compressive strength loss is in a small scope.

Based on this, the two sets of data will be establishedinto the model.
Table 1,Electric parametersof different time B2 B4 B6 B8 B10 B12 B14 B18 Capacitor 1 U 401.9 401.9 401.9 405.9 405.9 405.9 402.3 402.3 402.3 I 3.251 9.948 6.608 0.687 8.196 8.862 1.412 2.737 0 P 322.1 1083.8 896.4 19.2 707.7 2035.0 308.7 326.7 0 Q -1266 -3841 -2520 -277 -3250 -2956 -476 -1052 0 2 U 141.3 141.3 141.3 142.6 142.6 142.6 141.6 141.6 141.6 I 1.107 4.083 2.354 0.234 3.721 2.708 0.517 0.526 38.302 P 37.4 175.5 150.6 -0.5 180.3 128.3 44.3 21.7 -0.5 Q -151.3 -547.4 -298.6 -32.9 -500.4 -364.2 -58.1 -70.9 -5426 Through the above-mentioned data, table 2 shows the results in the testing time for different situations of the system harmonic impedance: Table 2, Under the different running system impedance 11 times System impedance Z Capacitor to exit 1.89-5.19i Capacitor input 0.15-1.53i The capacityof # 2 main transformeris 20 MVA, impedance is 10.02%.
Calculate the reduction to 10 kV side bases of wave impedance is 0.501i, according to the harmonic impedance of ideally calculation method, the harmonic impedance of 11 times is about5.5i.

The physicochemical data, mechanical strength and phase composition of this ceramic were analysed.
Also in comparison to published data for Y-TZP or common ZTA-ceramic showed that our results concerning the initial monoclinic ZrO2 are in the same range below < 2 % [4,5].
After the test the remaining static strength was 70 kN, which corresponds to a reduction of approximately 18 %.

In the present research, the effect of cyclic compressive loads of different amplitudes on clay bricks was studied, with two main objective of acquiring specific data on the fatigue behaviour in relation to the static behaviour and studying the fatigue effect on the possible change of the elastic properties of the bricks.
With increasing number of cycles the load versus displacement curve shows a deterioration consisting of a reduction in its inclination relative to the displacement axis; this process comes to a limit, i.e., failure occurs, when this curve intersects the descending branch of the static test (Fig. 1b).
For a higher intensity compressive cycles, brick fatigue life can be evaluated by means of a failure criterion based on the observation of the static and cyclic curves, as already ascertained by several authors for concrete: a very good applicability was found for bricks, despite it was observed a medium variability of the data.

Using high-purity cobalt oxide or cobalt oxalate by hydrogen reduction and electrolytic cobalt powder to prepare metallic cobalt powder are two main methods for preparing cobalt powder, the processes of which have a wide range of applications in practice [5].
The data of the mass loss of the pyolytic decomposition of CoC2O4 . 2H2O in the argon gas is presented in Table 1 according to its TG-DSC curves.
Fig.1 The curve of TG-DSC of CoC2O4 . 2H2O from the room temperature to 500 °C in the argon gas (heating rate of 10 °C. min-1) Table 1 The data of the weight loss of the pyolytic decomposition of CoC2O4 . 2H2O in the argon gas Temperature / °C Thermal decomposition process Mass loss rate / % Real mass loss rate Theoretical mass loss rate 150~275 CoC2O4 . 2H2O→CoC2O4+2H2O 19.07 19.67 300~450 CoC2O4→Co+2CO2 47.60 48.09 Analysis of the morphologies of the pyrolysates of CoC2O4 . 2H2O SEM images of the pyrolysate of CoC2O4 . 2H2O at the different temperature for 10 min in the argon gas (heating rate of 10 °C. min-1) are shown in Fig. 2.