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Corrosion is accompanied by reduction reactions, in which the reduction of water leads to the evolution of hydrogen in neutral and alkaline solutions.
Lower indentation loads of 50g were preferred in the investigation as they generate smaller indentation areas and thus facilitate the collection of more data points.
Analysis of Data Figure 1 shows that the hardness (MHv) was higher in the near-surface region, and gradually diminished to a near-constant value in the bulk region of the sample.
The hydrogen diffusivity in pure iron has been determined by several authors, and the available data have been critically reviewed [11-13].
The diffusivity of hydrogen in pure bcc Fe, as calculated from reliable data, is between 2.45 x 10 −8 and 8.7 x 10 −9 m2/s for the temperature range of 293K to 322K [11-13].

According to survey data, strata of this section from 15m~16m below the surface is poor, from top to bottom are: 4m~ 8m thick miscellaneous fill soil, 0~2m thick plain fill soil, 2m~6m thick layer of silty clay, which also mixed with 0~2m thick round gravel layer, which has a hydraulic connection with the Xiangjiang River.
D Ramp North Main Lne South Main Line mid-weathered slate Fill soil round gravel strong weathered slate C Ramp Fig.1 Cross tunnel plan Fig.2 Numerical calculation model Calculations of early supporting and excavation: Due to a large amount of data to calculate the 3-D, screen and analyze it, select a few more representative cross-section or point to analyze, data collection points is as shown in Fig.3, in which UY2-UY5 is north-south main line data acquisition section, Ic, IIc, Id and IId are located respectively at C ramp and D ramp calculation data acquisition section.
The force and displacement phase contours of part of the rock and supporting structure is in Fig.8, UY2 ~ UY5 data collection points of north and south main line bending, axial force, displacement results is shown in Fig.4, C, D ramp data collection points Ic, IIc, Id, IId, whose moment the axial force, displacement can be seen in Figure 5.0.
The moments of main north-south tunnel invert are in the reduction of the state, mainly due to the reduction in load above the tunnel, because of ground reaction force decreases.
Monitoring data during excavation shows a smaller deformation that proved to be reasonable.

The reduction of ion concentration in the solution led to the decrease of conductivity.
Table 1 lists the data of tourmaline from different regions on the conductivity difference in solution.
According to the data in the table,it could be calculated the change slope K of conductivity difference and the strength of spontaneous polarization.
Calculation is as follows: Other data of different origin tourmaline were calculated by the formula described above.The calculation results are as follows: kNM = 2.73 µ S / (), kHB = 3.80 µ S / (), kGX = 2.91 µ S / (), kSD = 9.30 µ S / () By the above data the slope in order as: SD＞XJ＞HB＞GX＞NM.
Conductivity difference is , is the conductivity difference of reaction at 10 min.Table 2 is of changing data of density, particle size, and conductivity difference about different origin tourmaline.

Comparative analysis of test and calculated data for a weld size showed the model adequacy.
The results of calculated and test data are given chart 1 and figure 4.
Welded sample The calculation error of penetration depth in calculated and test data is 3-4 %, weld reinforcement – 6-7 %.
Chart 1 - Calculated and test data of weld size № Welding conditions Weld size, mm Calculation error, % I, А U, В f, Hz L, mm V, mm/s h e g Δh Δe Δg calculated data test data calculated data test data calculated data test data 1 45 16 120 125 3,31 1,45 1,48 0,37 0,39 0,26 0,27 2 5,1 3,7 2 42,5 22 120 125 3,29 1,65 1,71 0,84 0,82 0,25 0,24 3,6 2,4 4 3 42,5 24 120 125 3,28 1,71 1,61 1,15 1,11 0,26 0,24 5,8 3,5 7,7 4 40 18 120 125 3,30 1,52 1,57 0,30 0,28 0,27 0,26 3,3 6,6 3,7 5 42,5 16 115 130 3,31 1,45 1,48 0,34 0,33 0,20 0,21 2,1 2,9 4,7 6 42,5 18 115 130 3,29 1,52 1,51 0,52 0,54 0,22 0,21 1 3,7 4,5 Computer application “Calculation of sheet metal weld dimensions” is shown in figure 4.
The calculation error of penetration depth in calculated and test data is 3-4 %, weld reinforcement – 6-7 %.

Nominal data of the test part can be obtained using a coordinate measurement machine.
Therefore, the test part has to be designed to allow an easy data capture of the MT; taking into consideration the different kinematic models used to improve its accuracy.
In addition, a series of conical holes are strategically located along the surface to improve data capture and errors identification.
Tests Results A synthetic data simulator was used to validity the adequacy of the design parts, and its adequacy to applicate on it several verification methods.
The error reduction achieved in this case is 57% in the maximum error, 74% in the mean error and 90% in the minimum error Fig. 8 shows the colour map when the verification is performed using only the data of the pyramid cones Fig. 8a, and the reduction of the error after identification Fig. 8b.

The circles represent data points.
The gray box shows where 50% of the data values lie.
Figure 3 shows the data on the effect of the surface on the mechanical properties.
The data on scatter has to be interpreted.
The evaluation algorithms of the test data do not detected a significant change from elastic behavior.

The higher the carbonation temperature, the percentage reduction in Cr (VI) levels also increases.
Calculation After obtaining absorption data from samples, series standards, standard curves and Cr (VI) blanks, it can be calculated using the formula: Y= a x + b, to calculate the level of Cr(VI) samples x=y-ba x fp; y = absorbance; X = concentration of Cr (VI); b = coefficient and fP = dilution factor [27] Percentage of Decrease in Cr (VI) Concentration Initial Cr VIconcentration-final Cr (VI) concentration x 100initial Cr (VI) concentration= ... % (4) Results and Discussions The quality test of activated coconut shell carbon: Water content.
Graph of percentage reduction in Cr (VI) levels with varying concentrations of NaOH activator at an activation temperature of 500 ℃.
Figures 5, 6, and 7 show that the higher the NaOH concentration, the percentage reduction in Cr (VI) levels also increases.
This causes the active groups to interact with the heavy metal Cr(VI) and result in a greater percentage reduction in Cr(VI) levels.

On the aspect of reservoir sediment reduction in scheduling: rich experience on Sediment Reduction in scheduling.
Sediment flushing with density current may gain the aim on sediment reduction with other sediment reduction in scheduling for better. operation on "retaining clear water and releasing muddy”.
On the simulation of reservoir sedimentation, M.Frenette and J.C.Souriac computed sedimentation process on Peligre reservoir in Haiti in use of numerical model according to the surveyed data.
The scheduling rules can be extract from the fuzzy systems, data mining methods such as cluster analysis, nonlinear analysis, and mapping of logical association analysis based on a large number of deterministic and non-deterministic data.
Decision Support System based on Spatial data.Research focuses on：architecture design of decision support system; Location query and spatial analysis; Spatial Data Cube Construction；OLAP-based image classification and spatial analysis of spatial trends.

Data Acquisition and Processing In the experiment, when the driver stepped on the brake pedal, the data acquisition system will be activated and begin to record the test data.
Fig. 1 Data statistics.
Test Result First of all, we processed and analyzed the data, then calculated these data we obtained, so we could get the braking load index.
The brake load index of different cities and the experimental data we processed are shown in Table 2.
Data processing results of different cities.

It demonstrates that waste acid fluoride, stored for a substantial amount of time in waste piles is a crystallizing fuse for anhydrite binding materials providing improved strength performance and reduction of solidification time.
The analysis of phase composition, coherent scattering region rates, internal elastic stresses (∆d/d) was performed with the use of data bases PCPDFWIN and PDF4+ as well as the program of full-profile analysis POWDER CELL 2.4.
Distinctive endoeffects, given in the reference sample (Figure 6) almost lack in modified acid fluoride binder which proves almost total transition of anhydrite into calcium sulfate dehydrate and considerable reduction of calcium carbonate.