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The test site, presented in our earlier papers [12], is equipped with control and measurement circuits for grinding parameters, three-axial piezoelectric force gauge 9257B made by KISTLER and computerized system for experimental data logging.
Substantial reduction of the tangential component of the specific grinding force during AEDG process has been observed during negative polarization (-) of the machined element (sample 3).
An advantageous reduction of the grinding energy has been observed also when applied working current of the 12 A intensity at the voltage drop about 150-200 V giving an energy reduction of about 40-50% in comparison with conventional grinding process.
Presented results of investigations have confirmed a substantial influence of electro-erosive process on reduction of the specific grinding energy in comparison with the conventional grinding (CG).
Effect of working current voltage and intensity on specific energy for conventional grinding (CG) and AEDG process of sintered carbides S20S: vs=30 m/s, vf=0.5 m/min, a=20 µm, ti=32 µs, tp=63 µs, dielectric – distilled water An advantageous reduction of the energy consumption has been observed also when the applied working current of 12 A intensity at the voltage drop in the range 150200 V giving an energy reduction of about 3.5 times for the whole voltage range in comparison with conventional grinding process.

Products Eco-Line (sphere shaped formers): · Slab depth 400 – 700 mm · Void formers height 270 – 450 mm · Particularly suitable for wide slab spans · Exceptional reduction of dead-weight load Product Slim-Line (rotational ellipsoid or flattened void formers): · Slab depth 200 – 450 mm · Void formers height 100 – 260 mm · Particularly suitable for low slab depth · Savings potential of cost and material · Eco-friendly construction · Economical transport options.
There are stiffness reduction factors and self weight reduction for Reduced slab models.
Table 3 The thickness of the slabs, the height of the void formers, the designed spans and the type designation of the slabs COBIAX Type   Slim-line (rotational ellipsoid)   S-100 S-120 S-140 S-160 S-180 S-200 S-220 Height of a void former m 0.1 0.12 0.14 0.16 0.18 0.2 0.22 Height of a slab m 0.2 0.22 0.25 0.28 0.3 0.32 0.35 Span of a slab m 5.95 7 8.05 9.1 9.8 10.5 11.55 Stiffness reduction factor - 0.93 0.91 0.91 0.9 0.9 0.89 0.89 Self weight reduction kN/m2 1.4 1.64 1.88 2.1 2.32 2.56 2.8   Eco-Line (sphere) E-270 E-315 E-360 E-405 E-450 Height of a void former m 0.27 0.315 0.36 0.405 0.45 Height of a slab m 0.4 0.45 0.5 0.55 0.6 Span of a slab m 12.9 14.35 16 18 19.5 Stiffness reduction factor -  0.91 0.9 0.89 0.88 0.88 Self weight reduction kN/m2 2.86 3.34 3.82 4.29 4.77 The Lightweight slab models have been made by 3D elements SOLID187.
The modifications of the material properties have been based on the recommendations of the manufacturer specified in the product data sheet.

On the other hand, the formation of BaTi2Si2O8 phase causes a reduction in the Ba/Sr ratio, which is also responsible for lattice shrinkage.
However, at high Si-B-O levels (≥10mol%), the Tm markedly reduces, which caused by the reduction in the Ba/Sr ratio due to the formation of BaTi2Si2O8.
The reduction in the permittivity is due to the deterioration of the ferroelectric long-range order [16], the decrease of Ba/Sr ratio and the formation of low-permittivity BaTi2Si2O8 [17].
We fitted our data to Eq. (1) as indicated by the solid line in Fig. 4.
The symbols indicate the experimental data and the solid lines represent fitting to Eq. (1).

Above all, in order to achieve the strategic objective of sustainable development, energy consumption reduction of pumping units, improvement of system efficiency and reduction of production cost become the main tasks of oil fields to achieve the energy saving and efficiency improvement.
In order to improve the efficiency of pumping units to achieve energy saving and consumption reduction, some energy-saving technologies in pumping units have been continually developed such as parallel compensation capacitor technology; digital motor controller technology; general frequency-conversion and speed-regulation technology; permanent magnet synchronous motor technology, etc.
The main circuit inverter uses IGBT power transistor, and the control loop core uses DSP processor, which has the capacity of high-speed data computing and meets the requirements of DTC high-speed real-time calculation.
· Flexible Extension Taking into account of the trend of the future digital wells and the need for centralized control of the production process, it sets aside the extended interface of supporting the field bus, which can easily transmit the relevant data to the upper management system.

The initial Al alloy sheets were then asymmetrically rolled to different reductions per each passes ranging from 5 to about 10% on a laboratory asymmetrical rolling mill with upper and lower rolling speed ratio of 1.5:1.
Orientation distribution functions (ODF) of Al alloy sheets were calculated from the measured pole figure data [16].
After asymmetric rolling with 5% reduction in thickness, distorted cube texture, {001}<100>, distorted rotated cube texture, {001}<110> at s=0.9 layer and distorted rotated cube texture, {001}<110> at center layer (S=0)was observed in Fig. 2 (b).
After asymmetric rolling with 10% reduction in thickness, distorted cube texture, {001}<100>, distorted rotated cube texture, {001}<110>, {123}<634>, {120}<021> and {120}<233> at one tenth thickness surface (S=0.9) and center (s=0) layer in Fig. 2 (c)
The average r-values (r(_) -values) and |Δr|-values were able to be calculated by using pole figure and ODF data [16] of Fig. 1 and 2 as shown in Fig. 3.

Compared with traditionary quality improvement means, the outstanding characteristics of six sigma improvement are following: it emphasizes the analysis of customer demand as well as identification and improvement of quality characteristic; it emphasizes the data makes decision and the quantification of quality improvement process; it emphasizes comprehensive application of quality technique and method; it emphasizes financial data evaluation of quality improvement result. 1.2 The main process of six sigma improvement Form the point of six sigma improvement procedures, the currency is DMAIC (Define, Measure, Analysis, Improve, Control) process.
Aerospace six sigma improvement project evaluation The evaluation of aerospace six sigma improvement project includes two aspects, on the one hand, the evaluation of the implement process of aerospace six sigma improvement project, whether achieved the standard and target requirement of every stage; on the other hand, the evaluation of the benefit of the project, using quantitative index including cost reduction, capital requirement reduction, customer satisfaction and growth, risk reduction and so on.

Mould electro-magnetic stirring and soft-reduction at the end of solidification are used in Bloom caster.
Bloom Continuous casting 4 machine 4 arc bloom caster with 3 point straightening, arc radius R=15m, separation distance of flow is 2m-2.2m-2m, metallurgy length is 40m,casting speed is 0.5-1.5m/min, section of Bloom is 360mm×450mm,mould weight is 45t,soft-reduction at the end of solidification. converter smelting technology According to the requirements of customers, the composition of L80-3Cr steel should be controlled in Table 2 mentioned and the practical composition of products are shown in Table 2.
Soft reduction technology is adopted.
Table4 Results of macroscopic examination/level Items General porosity Center porosity Center segregation Center shrinkage cavity Practical data 0.5～1.0 0～1.0 0～1.0 0.5～1.0 Requirement ≤1.0 ≤1.0 ≤2.0 ≤1.0 Fig5 Typical macroscopic picture Tabale5 Metallographic examination of bars /level Items A B C D Ds Practical data 0.5～1.0 0.5～1.0 0～0.5 0.5～1.0 0.5～1.0 Requirement ≤2.0 ≤2.0 ≤2.0 ≤2.0 ≤2.5 Inclusion level of 23 heats of bars are examined in talbe5 and it meets the requirement of customers.

A 12 bit analog-to-digital converter, a 100 pin programmable logic device and a high speed 51 serials microcontroller are used to digitize the sensor’s outputs, process sensor data and control instrument.
The output noise is reduced by measuring the intensity of the reflected beam and averaging the output data.
The oxidation peak is at 0.46V and the reduction peak is at -0.02V.
The peak current ratio between oxidation and reduction reaction is nearly 1.
Then the potential sweeps in an opposite direction from 0.7V to -0.2V and the reduction peak gives the similar results.

Nowadays, coal seam water infusion, spray and dust reduction, dedusting by dust collector, ventilation and dust control, and chemical depression of dust are commonly used to decrease higher concentration of dust on extracting coal face at home and abroad.
Three repetitions of this operation were done in order to take the average data so that we can finally obtain a optimal concentration of the foaming agent.
Tab.2 Concentration of dust without any dust-reduction measures on spot.
Heading face Working spot of driver Tail of transfer machine 100m far from heading face Respirable dust/mg·m-3 459 145.6 103.3 97.5 Totalcoal dust/mg·m-3 1077 323.3 275.4 200.6 Tab.3 Concentration of dust after traditional dust-reduction measures on spot.
Heading face Working spot of driver Tail of transfer machine 100m far from heading face Respirable dust/mg·m-3 59.2 8.0 7.9 7.4 Totalcoal dust/mg·m-3 126.1 t17.5 17.6 12.6 Data from the three figures above shows that after taking former dedusting measures, dust-laying rate of respirable dust and total coal dust are individually 53.4% and 54.4%.

Reduction of European emissions has consistently demonstrated a decrease in the acidity of rainwater in Slovakia [1].
The available data on air pollution shows the changes that occurred in 2014 compared to 2004 [1].
Three different periods of monthly averages of climatic data values were compared.
Using the monthly averages of climatic data and values of the air pollution from 2003 to 2006, the maps were obtained that are shown in Fig. 2a.
The main factors obtained in this standard STN EN ISO 9223 could be based on the dose-response function uncertainty or by measurements of air pollution and climatic data.