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China encourages the development of circular economy of coal at present , the coal companies in China are also elongating industry chain, expanding industrial categories and creating the development mode of coal circular economy industry chain, and coal washing, coking, coal chemical industry, electricity, building materials and industrial system has been taken in shape.
Industry argument, MK is said that coal mining, XM is said the coal washing plant, GD is said gangue power plant, MD is said the coal plant, JH is said the coking plant, JC is said the building materials factory, JCH is said methanol plant.
Acknowledgements This work was financially supported by the Shanxi Province Natural Science Foundation ( 2009011021-2) and the Education Department of Shanxi Province of China (No. 20101156) References [1] Wang Lingmei, Zhang Jintun, Ni Weidou.
Journal of China Coal Society, 2008, 33(2):237-240.
Chinese Journal of Geotechnical Engineering, 2008, 30(4): 617-619.

So as to give full play to the advantages of steel and concrete and make up for the shortcomings of two kinds of materials.
Material properties of steel with thickness 2.86mm and 7.6mm in reference [1] are listed in table 2.
Table 2 Material properties of steel Elasticity modulus （Mpa） Poisson ratio Yield limit fy （Mpa） Ultimate tensile strength fcu（Mpa） 182000 0.3 227.7 294.4 194000 0.3 194 298.6 The selection of concrete material model.
Schneider: Axially Loaded Concrete-Filled Steel Tubes, Journal of Structural，ASCE Vol.124(1998):1125 [5] Yu Zhiwei: Experimental study on multi-storey residential concrete-filled rectangular steel tube and node performance.
Harbin industrial university, master's thesis (2001) [7] Han Linhai, concrete filled steel tube structure, Beijing：science press(2003)

We referred to the materials and had acclimation experiment on the soil sample from Daqing Oilfield afterwards and screened out the Citrobacter braakii and Pseudomonas chlororaphis.
Environmental science, 2008, 11(29)
Beijing: Chinese Environment Science Press, 2002. 210-213
Environmental Science and technology, 2006, 11(29): 96-98
Chem Eng [J], 2005, 106:269 [12] Wu Yaoguo, Chen Peirong, Sun Weimin, Zhang Shuheng, Modification of Fly Ash and Its Application in Water Treatment, Journal of Materials, 2008, 8(22): 368-371.

Analysis indicates that if outside flange were enlarged to about 3.0m, not only the capacity of prestressed concrete double Tee floor slabs to bear corresponding design loading is ensured, but also the expense such as materials expense, labor cost and transportation and installation charge is reduced generally, therefore, the economic efficiency is obvious.
Acknowledgements The research reported in this paper was supported by the Natural Science Foundation of Heilongjiang Province (No.
[5] Kawakami M.T., Kagaya M., Hirata M.: ACI Structural Journal, Vol. 82(1) (1985), pp. 203
[6] Brondum-Nielsen T.: ACI Structural Journal, Vol. 76(2) (1979), pp. 195

According to controlling geological factors of the distribution of Karst development and the concrete features of project regions disasters ,the study chose six first-class indexes to establish the risk evaluation index system[3,4], namely:formation and lithology U1(C1～C2)，geologic structure U2(C3～C4)，terrain and landform U3(C5～C7)，surface water system U4(C8～C9)，Groundwater system U5(C10～C12)，Karst development depth and tunnel design U6(C13～C14).At the same time, in terms of the investigation and studying materials, the Level 1 factor is subdivided and chose fourteen influential factors as the Level 2 discriminant index of Karst bursting water disaster risk, that is C1～C14.The specific indexes are as following: (l) The aspect of formation and lithology (U1).
Acknowledgements This work was financially supported by the Cultivation Fund of the Key Scientific and Technical Innovation Project, Ministry of Education of China (No.708010) and the National Natural Science Foundation (NSFC) of China (No.41072256).
Journal of the China Railway Society,2001,23(6):85-88.
Journal of the China Railway Society, 2007,29（4）：131-134.

Therefore, one should pay attention to the heat resistance of material when designing this part.
The temperature of point 13 that on the body is 80.2°C, in other places the temperature is lower than 100°C, and this is lower than material deformation temperature (120°C).
Acknowledgement The study is supported by the National Natural Science Foundation of P.
[2] Wagner Andrej, Bucar Tomaz and Fajdiga Matija: Strojniski Vestnik/Journal of Mechanical Engineering, 52 (2006), p. 52
Heath: International Journal of Heat and Fluid Flow, Vol.26, Issue 5(2005), p. 709.

Table 1 Comparison of different dioxin analysis method Method HRGC/MS DR-CALUX® Procept® ELISA Type Chemical assay Bioassay Bioassay Bioassay Time Over 14 days 5 to 7 days 3 to 5 days 3 to 5 days Substrate All kinds of samples All kinds of samples Soil and sediments Soil and sediments Advantage High accuracy Congener applicable Widely applicable Good correlation with chemical method Low setup costs Large amounts samples available Low setup costs Simple Operation Drawback High analysis cost Long analysis time Expensive instrument Not measurable for congener Cell technology needed High patent fees Not measurable for congener Expensive kit Not measurable for congener Low sensitivity Materials and Method Sampling Method.
Phillips, “Estimates of the Half‐Life of 2,3,7,8‐Tetrachlorodibenzo‐P‐Dioxin in Vietnam Veterans of Operation Ranch Hand”, Journal of Toxicology and Environmental Health, vol. 27, 1989, pp. 165-71
[5] Stephen H Safe, “Development Validation and Problems with the Toxic Equivalency Factor Approach for Risk Assessment of Dioxins and Related Compounds”, Journal of animal science, vol. 76, 1998, pp. 134-41

Theoretical background for identification of the technical condition of avionic hydraulic drives on the basis of information from means for unbiased flight control of aircrafts Past experience demonstrates that among all commonly known physical phenomena affecting the technical condition of hydraulic units, the following can be distinguished as the most important ones [3, 4]: – mechanical deterioration of hydraulic plunger and barrel mating assemblies due to abrasive and erosive wear of their working surfaces (Fig. 1), – fatigue wear of individual components exposed to the impact of dynamic loads, – ageing of materials, in particular sealing and packing stuff of any type made of elastomeric rubber, caused by various substances used for operation of the units.
Tomczyk, Dynamic models for components and circuits of hydrostatic drives, Publishing House for Technology and Science, Warsaw, 1999
Ułanowicz, Outline of the method to operate hydraulic drives by their technical condition with continuous monitoring of their parameters, Polish Journal of Environmental Studies, Vol. 18, No 4B, 2009, pp. 206¸211
Ułanowicz, Violation of the steady-state friction behaviour of a precise hydraulic pair due to imbalanced radial hydrostatic force, Journal of Konbin No 2,3(14,15), 2010, pp. 341-358.

Liščák: Assessment of the vibroactivity level of SI engines in stationary and non-stationary operating conditions, Journal of Vibroengineering, Vol. 16(3), pp 1349-1359 (2014)
Journal of Vibroengineering, Vol. 17(1), pp. 175187 (2015)
Mechatronic Systems, Mechanics and Materials II, Vol. 210, pp. 200-205 (2014)
Experimental Thermal and Fluid Science, Vol. 62, pp. 151-163 (2015)

Experimental aspects Material.
This material was obtained from Plansee Metallwerke AG, Austria, and produced by a powder metallurgical (PM) processing route.
Kofstad: High Temperature Corrosion, (Elsevier Applied Science, London, U.K., 1988), p. 116 [21] Y.P.
Stroosnijder: Journal de Physique IV, Vol. 12 (2002), p. 207 [26] K.
Rea: Journal of the Less-Common Metals Vol. 1 (1959), p. 152