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Based on microscale gases leakage to produce ultrasonic principal, pressure vessels for small leaks can produce ultrasonic signal, determining the design of scheme to extracted container leak of weak signal, and analyze the signal, it can provide the method of using ultrasonic testing for tank leakage based on basic theory experiment, and presents the system design scheme of the system consists of hardware and software, used for data collection and analysis processing respectively, in order to realize the function of estimating of the microscale gas leakage.
System adopts Japan Fuji in the design of the company's production model for FUS-40CRUZA ultrasonic sensor, as shown in the Fig. 1 below: Fig. 1 FUS-40CRUZA ultrasonic sensor Because of the leak holes of 0.3 mm ultrasonic leakage signal is very weak, ultrasonic attenuation of signal propagation in the medium is very quickly, so we do need to increase the subsequent processing circuit magnification, and magnification should be amplified 10000 times above, what we require is the follow-up circuit magnification is the actual magnification, and to improve the magnification, we need to have a higher requirement for the signal processing part, improvement of magnification is bound to the introduction of interference and noise amplification, it needs to be noise reduction processing, have a higher demand for circuit design.
Noise Reduction.
Based on noise reduction of anti-interference requirements, we design four layer board, followed by signal layer, formation, power supply, signal layer and 4 layer board can effectively noise interference, the existence of formation can be effectively isolated noise or crosstalk, has an independent power supply layer can be eliminated as much as possible, power supply for signal crosstalk.
Ultrasonic weak Piezoelectric transducer Amplifying Circuit High-pass Filter Circuit Circuit Envelope DAQ Card software process Fig. 2 Process of signal conditioning Ultrasonic testing device is mainly composed of sensor module, a signal processing circuit of module, data acquisition and processing module.

Sanind Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Moscow, 142432 Russia a*ade@ism.ac.ru, byukh@ism.ac.ru, cdenis-ikornikov@yandex.ru, dsvn@ism.ac.ru Keywords: combustion synthesis, centrifugal SHS, aluminothermy, calciothermic reduction, cast titanium aluminide.
For the first time is used a reduction mixture on Al/Ca base which markedly increases the yield of Ti–Al–Nb and decreases the amount of non-metallic impurities (oxygen, nitrogen, carbon) in target product.
According to XRD data, the structural constituents of the product are TiAl and Ti3Al.

Under the strain rate range, the tensile strength increases and the elongation and the reduction of area decrease.
Fig. 2 Metallographic microstructure of SA508-III steel Fig. 3 Stress - strain curves of SA508-Ⅲ steel with different strain rates at 350 ℃ Table 3 shows the tensile properties of SA508-Ⅲ steel with different strain rates at 350 ℃, and the Fig. 4 is drawn according to the data in Table 3.
All above can explain why they own higher reduction and elongation than those of other strain rates under the same condition.
This is consistent with the data derived from the experiments.
Huang, Dynamic strain aging and grain size reduction effects on the fatigue resistance of SA533B3 steels, Elsevier B.V. 324 (2004) 140–151.

It already has been shown that a reduction of the bending force takes place [4].
This can be done with a constant wall thickness reduction or with a variable reduction along the tube axis
Therefore the ratio of initial and final wall thickness can be written as (3) The analytical approach was proven by experimental data.
The revolution speed U as well as the diameter reduction x are kept constant.
Figure 4: Wall thickness depending on bending radius [10] Figure 4 also shows that the analytical assumptions (ana.) concerning the strains (Eqs. (1)-(3)) are proven by the experimental data (exp.).

Comparison with the results obtained by the strength reduction FEM proposed by AcademicianYingrenZhengshows that the proposed method is more simple and reasonable to determine slope stability or not.
During modeling, under the premise of not affecting the calculation results, simplifying the slope lineappropriately.At the same time, because of the relative lack of drilling data of the slope, when modeling considered that the most dangerous situation, namely thought the marlstone dissection links up continuously in the analysis section plane.
The stabilitycoefficient analysis using finite element method The stabilitycoefficient of basic operating condition.The comparison of using gravity load ratio method to calculate the slope stability coefficient and the results obtained by thestrength reduction FEM is showing in Table 2: Table2The contrast table of stability coefficient Calculation times Safety coefficient Gravity Loading Proportion Method 1 1.21 Strength reduction method 7 1.1963 Contrasting two kinds of methods can explain the science, simplicity and rationality of the Gravity Loading Proportion Method Evaluation of slope stability.According to the slope geological survey data and the results of slope safety coefficient calculation, the following conclusions can be drawn: 1 - 1 profile basically stablein natural condition, but the safety coefficient do not meet the requirements of specification.
Conclusion Given the steps and implementation process of the ADINA software platform of the Gravity Loading Proportion Method, this paper comparedwith the stability safety factor of the strength reduction FEM, finally drawnthe conclusion of whether the slope stabilityor not.

The gradation is made from the condition of the reduction of metal viscosity in the overheating zone, determined by the magnitude of the impact of Sharpy samples at the temperature of 40 °C below zero.
The concept of pipe steel development adopted in Russia provides for the reduction in carbon content; increasing the purity of the metal by harmful impurities (S≤0.001 %, P≤0.010); rational micro-alloying; thermo-mechanical rolling [6].
Minimum values of the impact of a metal of coarse grain area of HAZ (lower envelopes) depending on the number of reheats and linear energy The data obtained show that the studied steels of K70 (X90) strength class must have appropriate limitations when applying repair technologies based on heating by an electric arc.
The obtained test data allowed the gradation of the investigated semi-finished products according to their repair ability, i.e. by the number of permissible repeated local heating of the material of parts during repair (Table 2).
In addition to the reduction of heat input, one more technological technique should be pointed out, which allows avoiding overlapping of superheat sections during repeated heating, which is quite simple in its design to avoid overlapping of superheat sections on each other.

The experimental data from Cr and Cu were fitted to adsorption isotherms models.
The Cr adsorption data with various adsorbents fitted by the Langmuir and Freundlich models is shown in Fig. 4.
Fig.4 Compare different experimental data with isotherm models for Cr adsorption using a) nZVI, b) nZVI- PAC, and c) nZVI- GAC The principal mechanism of Cr removal by nZVI is the oxidation reaction of iron and the reduction of Cr, resulting in the deposition of trivalent Cr and other products.
As described previously, the data obtained from Cr adsorption by nZVI were not even fitted to the Langmuir model.
After fitting the experimental data, the results were similar to the current study.

After the reduction step, the reactor was purged with a He flow at 250 ºC for 30 min and was cooled down to 90 ºC at which the N2O titrations were carried out.
The CO2 conversion and CH3OH selectivity were obtained from the GC data, in which N2 is the internal standard gas.
The TPR profiles revealed that all catalysts displayed a similar reduction profile with a main reduction peak in the narrow range of 326–345ºC.With the increasing of the Zn/Zr ratios, the reduction temperature took on a volcano variation trend.
When the amount of Zn or Zr was higher, the reduction temperature was lower.
The result indicated the synergy of Cu-ZnO and the dispersion of Cu had influence on the reduction temperature simultaneously.

It is suggested that the crack width of unbonded partially prestressed RPC beams calculated in accordance with the specification for unbounded partially prestressed concrete structure should multiply the reduction factor of 0.7.
Table 2 L2 crack spacing’s measured and calculated results under normal loads No. rte deq (mm) c (mm) ccr,m (mm) tcr,m (mm) ccr,m/ tcr,m L2-1 0.0174 14.28 20 103.6 83 6.35 L2-2 74 6.88 Comparison of the data can be seen from table, the calculated average crack spacing value of L2 beam according to specification is larger than the measured value.
Bring Measured data in this experiment into the above formula can be obtained the calculated value of crack width are shown in Table 3.
Experiment phenomena and the experimental data indicate that the measured value of crack spacing is less than the values calculated by the formula in " code for design of concrete structures" ​and suggest that modify the calculated values.
The experiment results show that the reduction coefficient is 0.7.

The Avrami exponent data indicate the occurrence of an unidimensional grain growth due only to high angle boundaries migration, with values ranging between 0.9 and 1.2.
The EBSD data were processed by Orientation Image Microscopy (OIM)™ from the commercial software developed by EDAX Inc.
Vickers Microhardness The softening kinetics was studied through Vickers microhardness measurements for both series, in which the data analysis shows that the softening process proceeds as the annealing time and temperature increase (Fig. 2).
This step is characterized by the reduction of grain boundary energy through their growth [5].
Recrystallization Kinetics The Avrami expoent data indicate the occurrence of an unidimensional grain growth due only to high angle boudaries migration, with values ranging between 0.9 and 1.2.