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This is mainly because: (1) as output variables, alumina concentration can not be directly measured, which must depend on long time interval sampling and analysis. (2) electrolytic aluminum production process cannot be described with mathematical analytical model, the factors which affect the electrolytic aluminum concentration are many, such as raw material composition, voltage and current, additives, aluminum quantity, anode movement, those have the uncertainty.
Cell is a complex industrial process system with multi-variable coupled, nonlinear, time-varying and large delay, due to its own between electrolytic cell material and the energy balance state, and many important parameters with non-continuous determination, which bring about enormous difficulties for the precise mathematical model's establishment.
Xing: Science in China,Ser.E, Vol. 32 (2002) No.6, pp.321-323.
Ling: Journal of Central South University of Technology, Vol. 34 (2003) No.5, pp.551-554.

However, there are always dewing problems in cooling conditions, which can never be avoided by improving the materials of the radiant panels [4].
Journal of Nanjing Normal University, 2009, 9(3) 39-41(In Chinese) [4] Qing He, Jinming Shen, Qingyun Shou, et al.
London Applied science publisher, 1980 [7] Xiang Huang.

Study on Chemical Grout Permeation Mechanism Based on Experiment of Mud and Sand Medium Duo Tian1,a, Haoyu Shi1,band Enjun Fu 3,c 1 North China Institute of Science and Technology, Beijing 101601, China 2 No.1 Coal Mine; Pingshuo Coal Industry Company, Shuozhou 036006, China ashihaoyu2000@163.com, btiand_2001@163.com Keywords: mud and sand medium; grouting experiment; pore; permeation mechanism Abstract: In order to fully mechanized caving face bypass collapse column on safety and high efficiency, this paper do similarity simulation experiment, and obtained experimental result that main type of seepage flow includes finger seepage and surface seepage, the grout enter into around pore and occupy it’s space in grouting pressure.
Material development and research of osmosis and diffusion on chemical grouting for extraordinary cracked coal and rockmass [D].
China Coal Research Institute. 2007,In Chinese [6] Shimada, H, Sasaoka, T, Kubota, S．The Application of Flyash Cement in Mining Backfill Material．Australasian Institute of Mining and Metallurgy Publication series, 2003(1): 199~204 [7] Ma Xiurong; Hao Ze.
Chinese Journal of Rock Mechanics and Engineering. 2004(2) ,In Chinese

Journal of Materials Processing Technology, 2011, 11( 2) : 205-211
Xi'an University of Electronic Technology (Natural Science Edition), 2011(02): 39-40

Acknowledgment The work was supported by NSFC (60905051), Lishui science and technology bureau (SGY1203).
Applied Mechanics and Materials.
Journal of process control, 19(2009):1496-1510

Table 3 Basic arm three conditions calculated summary Working conditions Maximum average stress (Mpa) Material allowable stress (Mpa) Maximum average stress occurs at Boom calculated deformation (mm) Boom allowable deformation (mm) Working conditions One Working conditions Two Working conditions three Luffing Rotary Luffing Rotary Luffing Rotary 159.064 163.49 134.199 137.433 115.015 117.712 501-549 501-549 501-549 501-549 501-549 501-549 Boom upper main chord with reinforcing plate welding of the roots Boom upper main chord with reinforcing plate welding of the roots Boom upper main chord with reinforcing plate welding of the roots Boom upper main chord with reinforcing plate welding of the roots Boom upper main chord with reinforcing plate welding of the roots Boom upper main chord with reinforcing plate welding of the roots 35.897 71.899 30.741 57.822 27.238
49.965 118.3 118.3 118.3 118.3 118.3 118.3 The above comparative analysis of three conditions shows that the boom suffered maximum mean stress σ is less than the material allowable stress [σ] (allowable stress [σ] give a specific value), and the emergence of the maximum average stress of the boom is at the roots of the connection of the upper arm at the main chord and reinforcing plate welding, so we can infer that the most dangerous operating position of the basic arm is in the area.
The theoretical basis and method of ANSYS beam unit. journal of China three gorges university(Natural sciences).2005

Yen: A DMAIC Approach to Printed Circuit Board Quality Improvement, Internatioanl Journal of Advance Manufacturing Technology, Vol. 23 (2004), p. 523–531
Devore, in: Probability and Statistics for Engineering and Sciences, 8th ed.
Memarzadeh: Using Two-Way ANOVA and Hypothesis Test in Evaluating Crumb Rubber Modification (CRM) Agitation Effects on Rheological Properties of Bitumen, Construction and Building Materials, Vol. 25 (2011), p. 2094-2106

It is a good material for adsorbent preparation because of its excellent dilatability, adsorption and cationic exchange capacity[3-4].
Characterization and measurement of material.
Acknowledgements This work was financially supported by the Natural Science Fund Project of Hubei Province (2012FFB04703).
Journal of Wuhan University of Technology,Vol.28-7(2006), p. 33-35.

Characteristics of Electron Structure and 4f Orbital of Rare Earths and Their Reinforcement of Wastewater Degradation Juchi Kuang School of Science, Foshan University, Foshan 528000, Guangdong Province, China kjc2277@163.com or kjcfs123@sina.com Keywords： rare earth(RE); 4f orbital; hybrid; bonding; wastewater; degradation.
Acknowledgements This work was supported by the Joint Center for Functional Polymer Materials of Foshan University.
[6] Patrik K，Ernst G，Siegfried H E, TiO2 photocatalytic oxidation of monochloroacetic acid an d pyridine：Influence of ozone, Journal of Photochemistry and Photobiology A：Chemistry. 3(2000) 163-168

Acknowledgements This work was financially supported by the grant of Russian Education and Science Ministry “Theory and methods of position path control for robotics systems in extreme modes and uncertain environments”, the grant of Southern Federal University “Theory and method of power saving control for distributed systems of energy generation, transmission, and consumption”, the grant of Russian Foundation of Basic Research 13-08-00315, the grants of Russian President Council MD-1098.2013.10 and NS-3437.2014.10.
Applied Mechanics and Materials Vols. 490-491 (2014).
Power Engineeing Journal, 1994.- Vol. 3.