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In contrast to steel volute casing, the strength and stiffness of the volute casing made of PMMA or other engineering plastics must be taken into consideration because these materials have smaller allowable stress and are more deformable.
The material of volute casing is PMMA.
It can be found that when the rotational speed is 1690r/min, the maximum stress of volute casing is 62.5MPa, which is equal to the allowable stress of the material PMMA.
Carlos: Journal of Fluids Engineering, Vol. 128 (2006), pp. 937-946 [2] P.
Christian: Journal of Fluids Engineering, Vol. 125 (2003), pp. 61-72 [3] ABAQUS version 6.5 User's manual.

Kinetics for sulfate removal in tannery wastewater by immobilized activated sludge Changqing Zhao 1,3,a, Qinhuan Yang 2,b, Wuyong Chen3,c 1 College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China 2 College of Material and Chemical Engineering, Sichuan University of Science and Engineering, Zigong 643000, China 3 National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China aemail: zhaocq81@163.com, bemail: yqhyqhyqh1@126.com, cemail: zhaocq81@126.com Keywords: tannery wastewater; sulfate; immobilization; kinetics Abstract.
Experimental Procedure Materials The activated sludge and the actual tannery wastewater containing sulfate in the experiments were collected from the wastewater treatment system in a tannery (China).
Environmental Science & Technology, Vol. 31 (2008), p.67-71
Journal of shaanxi university of science & technology, Vol. 22(2004), p.143-148
Shanghai Environmental Science, Vol. 11(1992) , p.27-29, 48

Using absorbent material to reduce the moisture in the air, thereby reducing the relative humidity of the air, is the common method.
Acknowledgements This work was financially supported by the Science Foundation of North China Institute of Aerospace Engineering (ZDKY201201).
References [1] Li Dao Liang: Agricultural IOT introduction (Science Press, China 2012)
[2] Qi Li: Study on the Characteristics, Advantages and the Application in Greenhouse of the Agricultural Intelligent Control System Based on the Internet of Things (Journal of Anhui Agricultural Sciences, China 2011)
[5] Yan E Duan: Research on IOT Technology and IOT’s Application in Urban Agriculture (Advanced Materials Research (Volumes 457 - 458), 2012)

Acknowledgements This work was supported in part by Shanghai Nature Science Foundation Project (No. 10ZR1413200), Innovation Program of Shanghai Municipal Education Commission (No. 10YZ115), Shanghai Science Commission International Cooperation Project (No. 09530708200), Shanghai Science Commission Project (No. 09DZ2250400), Shanghai University Key Sujbect Construction Grant (No.
J50604) and Shanghai Municipal Science Commission Local University Capability Project (No. 08170511300).
Information Sciences, 2010, 180(10): 2029-2043
Journal of Hazardous Materials, 2006, 134(1-3): 27-35
Estuarine, Coastal and Shelf Science, 2006, 70(4): 525-532

Micro-nano-composite ceramic material AWT10 has favorable property of shock resistance.
The conchoidal spalling, ladder face and the molten workpiece materials can be observed in Fig. 7a, 7b.
Micro-nano-composite ceramic material AWT10 has favorable property of shock resistance.
Acknowledgements This research is supported by the National Basic Research Program of China (2009CB724402), the National Natural Science Foundation of China (51175310) and the Scientific Research Foundation for Outstanding Youth Scientists of Shandong Province of China (BS2011ZZ010).
Zhou: International Journal of Refractory Metals and Hard Materials Vol. 28(3) (2010), p. 330 [5] D.

Currently, dynamic deformation behaviors research on the sand, fly ash and other soil materials carried out under different initial stress conditions, and many results obtained [7-10].
CHINESE Journal of Geotechnical Engineering, 2000, 22(4): 435－440. ( in Chinese) [8] Ying GUO, Maotian LUAN, Danda SHI.
Civil Engineering Journal, 2005:38(3):81-86.
Beijing: Science press, 2001. ( in Chinese) [15] WANG Zhongning, YU Peiji.
Journal of Hydraulic Engineering. 2005, 36(7):830- 834.

Experimental Materials preparation.
Journal of Materials Science & Technology. 31 (2015),512-516
Journal of Materials Science & Technology. 11(2016) 1152-1160
Infrared Spectroscopy - Materials Science, Engineering and Technology.
Key Engineering Materials. 734 (2017)104-115

Considering the processes, materials, energy sources and efficiency of existing hydrogen production technologies, except using the renewable energy sources, the other technologies directly or indirectly give off a large amount of carbon dioxide or pollutants.
But they are seldom used as fuel, but the materials for manufacture of fertilizers (50%), oil refining (35%) and methanol (8%).
For hydrogen production, the physical and chemical properties of hydrogen determine that the energy needed for hydrogen production is always more than the energy it releases no matter what kind of methods and materials are used.
As a result, in order to obtain sufficient quantities of hydrogen, there must be abundant and cheap primary energy sources to meet the need of production and be used as materials.
Coal and natural gas are ideal materials for hydrogen production, but the technologies are complex and will emit greenhouse gases.

In addition to their good thermal performance, earth materials are abundant, inexpensive, and readily available, reducing the need for resource-intensive materials like concrete and steel.
For earth materials extracted on site, the compaction energy represents the main parameter to evaluate.
Materials and Methods 2.1.
Materials and workmanship for earth buildings. 1998
Olivier, ‘Clayey soil behavior under static compaction test’, Materials and Structures, vol. 32, pp. 687–694, Nov. 1999

AlthoughL*2000 contributes most toE*2000 (r=0.854), taking consideration of variation range of purple is wide in color science, it is extremely not rigorous if we ignore the influence of H*2000 orC*2000.L*2000 less thanH*2000 andC*2000 for all the lavender of jadeite parameters affecting the appearance.
In addition, hue and chroma is the basic important parameters in color science.
Upon the comparative of material object and the photos by numerous people contrast many times, we can find that y1 tends to be partial to blue and y2 tends partial purple.
The variation range of purple is wide in color science because it is the most broad one from partial red purple till partial blue purple.
Journal of Beijing Institute of Technology. 2000.8.p489.