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The average reduction of UPV was ranged 5.80 to 13.65% at 14 days, 3.25 to 11.52% at 28days and 2.65 to 10.69% at 56 days, respectively.
The obtained equations are plotted in Fig.5 with experimental data.
However, the proposed equations in this investigation are given only as a function of their compressive strength using a relatively small number of experimental data.

It is well known that fast cooling rate will be favorable for a reduction of porosity content in aluminum alloys castings, but the thermal gradient effect is not discussed completely yet.
All the thermocouples were connected to a data acquisition unit to record the variation of temperature with time.
All the data points (1cm and 2 cm plate castings) are mixed.

A temperature profile of each paste was set up according to the data-sheet and producer's recommendations.
The primary recording device is temperature measuring instrument with data logger ALMEMO 2390-5 (AHLBORN).
Results don’t confirm the general fact that the strength of solder joint is increased in the case of reduction the residual oxygen concentration in the solder atmosphere.

The experiment was carried on under the normal temperature, and the data shown in Tab.1.
Table.1 Test Data load P/N the calculation stresses σ/MPa measurement voltage U/mV σ1 σ2 U1 U2 0 0 0 0 0 50 17 -18 9 -9 100 34 -34 18 -18 150 52 -51 29 -27 200 69 -67 34 -33 250 85 -87 43 -42 300 101 -103 52 -48 350 115 -119 59 -58 400 136 -135 69 -68 The static testing curve of the 45 steel is given out, as shown in Fig.2 [4].
Fig.2 Sensor static testing curve The test result shown that under simple tension the magnetization is easy, the magnetic resistance is reduction, and the magnetic measurement output is increase along the stretch direction (strain for direction),but the magnetization difficult , the magnetic resistance increases, the magnetic measurement output reduces along direction vertical to the stretch direction (strain for negative direction).

Therefore, accuracy degradation of the machine caused by machine-size reduction is less effective for lens assembly process.
Also, maximum deviation in repeatability test is less than 1 µm after data averaging process.
Also, the experimental data and the calculated values show very good matches: the maximum difference between the calculated value and measured one is about 15 µm.

In a few recent-years papers[7][8], theoretical and experimental data have indicated that the piezoelectric response of ScxAI1-XN film with a Sc concentrationof 43% exhibit a four times larger piezoelectric response than pure AlN films.
Their experimental data shown in Fig.1 indicated that the piezoelectric response of ScxAI1-XN film with a Sc concentrationof 43% exhibit a larger piezoelectric response (d33=27.6pCN-1 ) than pure AlN films (d33=5.5pCN-1), which open the way to a broad calss of applications, including use in high-temperature device [7].
It probably means that the crystal growth is more highly disordered above 450 °C, and that reduction of the growth temperature from 580 to 400 °C was identified as the crucial improvement to overcome the dip in the piezoelectric response as shown in Fig.1(a) at Sc concentrations between 30% and 40%.

Consequently, the treatment causes an increase in crystallinity and a reduction of the fibers diameter and density [3].
The Identification of crystalline phases is/was done with the aid of crystallographic data available in the International Centre for Diffraction Data System / Joint Committee on Power Diffraction Standards (ICDD / JCPDS ).

Examination object Weighting factor Human resources 0.21 Process stability 0.29 Controllability 0.29 Resources 0.09 Financial position 0.12 Thanks to the data, you can convert the model of the production potential of the enterprise in the form of: (4) In the Table 3-7 shows the quantification of the factors affecting the production potential of the enterprise, on 5 point scale.
(5) Given the state of the stability of technological process, the financial condition and the condition of other factors in the company of Open Joint Stock Company "Reinforced concrete structures-1", the value of the production potential: (6) Conclusion Analyzing the data ascertained: (7) It was established that the company uses its production capacity is only 80%, therefore, it is necessary to take measures to improve the use of the potential for the competitiveness of the enterprise market city Penza.
Extensive provisions are given concrete expression in the following: • reduction of production cycles of assembly and installation work; • an increase in the number of units actually operating equipment; • improving the organization of repair of equipment; Intensive reserves find their concrete expression in the following: • expansion of the range • increasing specialization of departments and sections in order to increase commercialization and implementation of advanced technology; • expansion of harmonization, normalization and standardization of products; • renewal and modernization of the equipment; • introduction of scientific organization of labor in the workplace

This signal was then connected to a T-junction splitter which simultaneously sent the signal to an amplifier and to the data acquisition (DAQ) system’s trigger switch.
The data was then fed into the chirp decomposition algorithm based on the equations in [6] to produce the reconstructed wavefields that would be obtained at various tonebursts.
The S0 mode mainly as mode conversions and the A0 mode mainly as a phase shift and amplitude reduction across the damage.

In order to ensure the desulfurization units operated continuously and efficiently, a series of policies and measures such as desulfurization electricity price subsidy, dispatch by energy-saving and emission reduction had been carried out by the State.
Nowadays, for some of the Chinese desulfurization units, part of the gas parameters such as chlorine, fluorine and dust in flue gas were designed almost the same, and the commonly used design data were: HCl ≤80 mg / m3, HF ≤ 25 mg / m3, dust ≤ 100 mg / m3 (the data were in standard, dryer and excess air ratio 1.4).