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Material and Methods The all parameters of mixed liquor and wastewater quality were determined according to standard methods.
Acknowledgment This research is financially supported by Supporting Certificate of China Postdoctoral Science Foundation (NO.20070420882); The National Natural Science Foundation of Heilongjiang Province of China (NO.
E200812); China Postdoctoral Science Foundation (NO. 200902408); The National Research and Public Service Industry Special Fund (NO. 200909055).
Environmental Engineering Science, 2004, 21(5): 606-616
Journal of Environmental Sciences ,2004 , 16 (3) : 380-383

Generally speaking that, any rocks on the surface of the earth will slowly decomposed and transformed into soil parent material, which is is a slow and complex process, and then through the climate, biological factors such as comprehensive formed under the action of minerals, organic matter and microbial soil based on the role of weathering.
In general, water and soil erosion not only worsen the mountainous rural material production and living conditions but also results in the decrease of the agricultural production income, and so exacerbating the mountain rural poverty and even some areas appeared "hard farming, draft and raise difficult" situation.
(4) the soil parent material and fragile ecological environment.
Journal of Mountain Science, 2001, 19 ( 5 ) [2]Language Institute of Chinese Academy of Sciences.Modern Chinese Dictionary.Beijing: Commercial Press,2005
Beijing: Social Sciences Documentation Press, 2008 [5]Sun Chang-an.

It can reach to 0.003c with the development of flexible skin and smart material.
McCullers: 47th AIAA Aerospace Sciences Meeting. 2009- 931
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Epstem: AIAA journal.

Neff, Degassing, in ASM Handbook, Vol. 15: Casting, ASM International, Materials Park, Ohio, 2008, pp. 370-374
Han, Degassing of Molten Aluminum A356 Alloy Using Ultrasonic Vibration, Materials Letter, 58 (2004) 3668-3672
Han, Effect of Ultrasonic Vibration on Degassing of Aluminum Alloys, Materials Science and Engineering A, 473 (2008) 96-104
Huang, Effct of Ultrasonic Vibration on Microstructural Evolution of Reinforcements and Degassing of in-situ TiB2p/Al-12Si-4Cu Composites, Journal of Materials Processing Technology, 212 (2012) 365-371
Sadler, TMS (The Minerals, Metals & Materials Society), 2013, pp. 949-955.

Kuhn: SAMPE Journal 21 (1985), p. 33 [3] R.
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Hayashi (Ed.): Handbook of Composite Materials Engineering, JUSE (Japanese Union of Scientists and Engineers, in Japanese) (1971), p. 521 [8] M.
On Composite Materials (ACCM-2000) (2000), p. 993

[6] Crawley, E.F. and J. de Luis: AIAA Journal Vol. 25 (1987), p. 1373 [7] Liang, C., F.P.
Rogers: A Dynamic Model of Piezoelectric Actuator-Driven Thin Plates (SPIE Smart Structures and Materials Conference, Orlando, Florida 1996)
[10] Fairweather, J.A.: Designing with Active Materials: An Impedance Based Approach, (Ph.D.
Littlefield: Application of the Impedance Method of Modeling Active Materials to Plate Structures ( Ph.D. dissertation, Rensselaer Polytechnic Institute, Troy, NY 2000)
(AIAA/ASME/ASC/AHS Structures, Structural Dynamics, and Materials Conference, Monterey 1987).

Materials Sodium silicate (Na2SiO3·H2O, industrial grade) was purchased from Yongqing JingYong Chemical Co.
Materials Chemistry and Physics.
Nanjing University of Science and Technology, China (2008)
Journal of Materials Science.
Vol. 17 (1982), p. 3371 [12] Chen Jin et al: Non-metallic nano-functional materials.

According to the information formation processing path, the layers of the prototyping materials are solidified or cut under the action of controls system, to form slices of all the sections.
In these days, molding materials get mature increasingly.
After the ceramic slurry is paved on the platform, the lift bears not only its own weight, and the weight of the materials as well.
Automatic control refit of boring machine based on PLC [J].Journal of Engineering Design, 2005, 12(3): 182-184
Fujian, Fujian Science and Technology Press, 2006

The application of electropolishing is suitable for difficult-to-machine materials, such as ceramic and cermit.
Blum: Benchmark Simulation for Coupled Electromagnetic-Mechanical Metal Forming Processes, Journal of Materials Processing Technology Vols. 177, No.1-3 (2006), p. 270-273
Shinmura: Development of Effectve Magnetic Deburring Method for a Drilled Hole on the Inside of Tubing Using a Magnetic Machining Jig, Key Engineering Materials Vol. 329 (2006), p. 243-248
Pa: Design of Forming Sheet Electrodes in Electrochemical Finishing of ZDC2 Castings Surface, Materials Science Forum Vols. 532-533 (2006), p.965-968
Pa: Design of Completely Inserted and Feeding Electrode for Female Screw in lectrochemical Finishing, Key Engineering Materials Vols. 329 (2006), p.231-236

Finally, the photographic material gathered during the tests was processed with the own created software to get the results in the form of colour maps.
Collins, The Modified Compression Field Theory for Reinforced Concrete Elements Subjected to shear, ACI Journal Proceedings, v. 83, 2 (1986)
Hsu, Softening Truss Model Theory for Shear and torsion, ACI Structural Journal, v.85, 6 (1988)
Hsu, Fixed Angle Softened Truss Model for Reinforced Concrete, ACI Structural Journal, v. 93, 2 (1996)
Schreier, Image Correlation for Shape, Motion, and Deformation Measurements, Springer Science+Business Media (2010)