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Therefore corrosion tests with the materials listed in table1 were performed by using pure Figure 1a: Mass loss data of the materials listed in Figure 1b: Corrosion depth of the materials listed in table 1 after 100h of corrosive attack in table 1 after 100h of corrosive attack in 1N H2SO4 with different amounts of KF 1n H2SO4 with different amounts of KF added and in pure 1N H2SO4 at 90°C added and in pure 1n H2SO4 at 90°C Amount of KF added / wt.-% 0 % KF 0,01 % KF 0,1 % KF 1,0 % KF Mass loss / mg cm-2 0,01 0,1 1 10 100 MgAlY-SiN 1 MgAlY-SiN 2 YAl-SiN1 YAl-SiN 2 Amount of KF added / wt.-% 0 % KF 0,01 % KF 0,1 % KF 1,0 % KF Corrosion depth / µm 1 10 100 1000 MgAlY-SiN1 MgAlY-SiN2 YAl-SiN1 YAl-SiN 2 sulfuric acid and sulfuric acid that contained increasing amounts of KF (0.01, 0.1 and 1.0 wt-%).
The mass loss data (figure 1a) were measured after exposing the samples for 100h to the acid.
Time dependent mass loss data of YAl-SiN3 and YAl-SiN7 in 1N H2SO4 containing 1,0 wt.-% KF and KF free acid at 90°C Independently on the KF content of the acid the residual strength of YAl-SiN2 drops to a nearly constant level of 500MPa.
The questions of strength reduction of Si3N4 ceramics caused by corrosive degradation in aequeous media are discussed in more detail in other publications [1 - 4].

For example, lanthanum strontium manganite (LSM) is currently the material of choice for solid oxide fuel cell (SOFC) cathodes based on zirconia or ceria electrolytes due to its chemical stability, electronic conductivity, thermal expansion, activity for oxygen reduction, and compatibility with other SOFC components [8,9].
Temperature (K) CO (x10-10 F) fC (Hz) p n G (x10-5 mho) 300 4.45 4900 0.9995 0.60 0.1 333 5.50 90000 0.9995 0.97 1.0 353 5.00 90000 0.9994 0.65 3.5 373 3.00 535000 0.9995 0.90 1.0 The data were fitted using the quasi-dc response model and the parameters for fitting are tabulated in Table 1.
To analyse the origin of the dielectric response, the same data from the capacitance were transform into impedance and presented in cole-cole impedance plot as in figure 3.
It can be seen that the impedance data only accumulated at lower frequency which difficult in predicting the response origin.

These carbides should confer higher creep resistance to the low chromium steel, since its micro/nano size would determine a strong interaction with matrix dislocations together with a reduction of the prior austenite grain size.
Data of compression tests are given in Table 1.
Data of temperature, stress and stress rate for the compression tests.
Unreinforced steel Reinforced steel Temperature (K) Stress (MPa) Strain rate (s-1) Temperature (K) Stress (MPa) Strain rate (s-1) 1223 211 1 1223 227 1 1323 131 1 1323 164 1 1373 115 1 1373 142 1 1423 89 1 1423 114 1 1223 248 10 1473 104 1 1323 177 10 1223 259 10 1373 146 10 1323 210 10 1423 139 10 1373 170 10 1473 115 10 1423 150 10 1223 273 20 1473 138 10 1323 196 20 1223 285 20 1373 179 20 1323 226 20 1423 157 20 1373 202 20 1473 149 20 1423 178 20 1473 160 20 The experimental compression data of Table 1 were adjusted to a hyperbolic sine equation of Garofalo type and the Garofalo parameters were calculated simultaneously [9,10].

Conventional approaches for the removal of zinc include chemical precipitation, chemical oxidation and reduction, ion exchange, filtration, electrochemical treatment, reverse osmosis, membrane technologies and evaporation recovery.
Powder diffraction data were recorded at room temperature using a Bruker AXS D8 Advance powder diffractomter [CuKα (Ni filtered) with scintillation detector; 2θ range, 5-50° step size 0.02°].
Results and Discussion The data obtained from the sorption of Zn(II) ions on the Amusium Pleuronectes shell powder showed that a contact time of 50 min was sufficient to achieve equilibrium and the sorption did not change significantly with further increase in contact time.
The data indications that the maximum metal removal with lower initial concentrations show percentage Zn(II) uptake was 98.27%, while the percentage removal of Zn(II) decreased from 98.27 to 78.29% at Zn(II) ions concentration at 400.

It can be deduced that hybrid fibers had good flame-retardant properties from these data.
Flammability data for pure viscose fibers and hybrid fibers were shown in Figs. 1-3 and Table 1.
Rate of heat release of viscose fibers and hybrid fibers were shown in Fig. 1, and the data of pHRR was listed in Table 1.
The reason for the reduction of HRR and THR for hybrid fibers is silicic acid is a weak acid (pKa 11-12).

Introduction Reduction of vacant land for construction in large cities leads to the need to construct high-rise buildings (by Russian standards applicable to high-rise buildings accepted if a height greater than 75 m).
Statement of the problem and initial data The purpose of research is to analyze the effects of wind and assign billing wind loads for high-rise building located in Moscow on the basis of three-dimensional numerical simulation of aerodynamic problems taking into account the terrain, the wind rose and the surrounding buildings.
The terrain was produced using specially designed program based on the digitized data space probe NASA.
Based on initial data summarizing validated three-dimensional numerical wind aerodynamics model of residential complex has been developed, which takes into account the terrain and surrounding buildings. 2.

Moreover, the related research usually analyzed the relationship between the different water utilization ratios according to the compositional data method while lack of systemic think of water utilization structure.
In an open environment, the relations among the subsystems’ competition and cooperation often make the overall system far from equilibrium, while system’ benign development is possible according to the expansion of positive feedback and reduction of negative feedback by the feedback effects which adjust the material and energy cycle emerge.
Based on the country’s’ most stringent water management system and according to recent survey data related to the allocation of water resources, the water supply capacity and water-saving target, we give the total water supply of Y city in 2015 is 6.67 billion m3.
Reference to the water planning report of the province which Y city belong to and the water data over the years, we dentify each optimal allocation weight of domestic water, industrial water, agricultural water, ecological and environmental water is: ω1=0.07, ω2=0.26, ω3=0.49, ω4=0.18, and, ω1+ω2+ω3+ω4=1.

(2)Human-computer interface design Control system adopts touch screen for industrial use,it designs three interfaces which contain data input interface, data monitoring interface and parameter setting interface. switching each interface by touching the button
Application and Conclusion In this paper, based on ARM and wireless network technology, transform gas flow detection system ,replace the original computer work, and complete detection of the processing and transmission of data by the control system. reduce the detection cost, greatly improve the detection accuracy and efficiency,it has an important significance in practical application References [1] Wen Huaihai, Application of ultrasonic flowmeter on the large diameter gas pipeline in the Petroleum Planning and design，The fourteenth volume sixth issue ，In 2003 November [2] Wang Zihe,Zhen Fan,Gas flow standard device,China Suzhou Calibration Network Press 2005-9-1 [3] Huang zhiyong,Discussion on WiFi technology and applications,Theoretical studies of urban construction, 2012,(35) [4] Ma changju,Ma boyuan, Design and simulation of fuzzy self-tuning PID controllers based on MATLAB parameters, Electronic Test, 2007.20-22 [5] reduce the impact on the aerodynamic performance because of
reduction rotating fan blade twist angle Ⅱ grade abnormally ,Mining Safety and Environmental Protection ,No.1(3),2012 [6] JJG 643 —2003 flow standard device with standard meter method,Beijing, Chinese Measuring Press

The sparse activation energy data on grain boundary relaxation lead us to undertake a detailed investigation.
The whole measurement is controlled using an IBM586 computer and an 8087 processor, and the data can be processed in real time.
Martin: Scripta Materialia Vol. 39(1998), p.131 [8] P.R.Bevington, in: Data Reduction and Error Analysis for the Physical Science, New York, McGraw-Hill (1969), p.235 [9] A.S.

Results and discussion Analysis of hysteresis loops M(H) of Cox(SiO2)100-x и Cox(Al2O3)100-x films, measured at room temperature, showed that a reduction of the cobalt content resulted in a decrease of an initial susceptibility and maximum magnetization Mm (17 kOe) more rapidly than it would be expected from a simple model of the component mixing.
This state is confirmed by the data of the temperature measurements taken for Co50(Al2O3)50 and Co50(SiO2)50 samples by well known method of zero field cooling  field cooling (Fig. 1).
It is seen, that for 40£x£50, the d value is within 3¸6 nm, which coincides with the data obtained by the blocking temperature analysis.
After the analysis of the present data we can definitely conclude that the maximum effect in samples of both systems is observed at x» 50, but the effect is higher in case of Co- Al2O3 film.