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Starch (St) and acrylamide (AM) copolymers was prepared by aqueous solution polymerization, which as raw material finished hydroxyl methylation reaction, then condensation dehydration with dicyanodiamine, cationic starch graft flocculant is synthetized.
Experiments Raw material and Instruments.
Cationic degrees (Dc) determination: regard cetyl pyridine bromide as the basis material, determine with polyvinyl alcohol potassium sulfate gel titration method.
Starch is main raw material of the self-made agent, which is low cost, has good environmental and economic benefits, and the preparation technology is simple, easy to popularize.
(in Chinese) [5] Zhenru Liu, Chunlu Zhao, Jianwen Pei and Guangke Li: Journal of Environmental Sciences, Vol. 1(1995), p. 48-55.

In order to adapt to the processing of different materials and different processing methods, the main drive system of milling machines must have a wide speed range and the corresponding output torque.
Acknowledgment The study was supported by Science and Technology Development Plan of Shandong Province (No. 2009GG10004027).
Journal of Nanjing Normal University(Engineering and Technology),2008(2):83-85
Journal of Northwestern Polytechnical University, 2006, 24(2),255-259
[13] Tian 　Xiaojun,Wang 　Huiliang, “Open CNC System Analysis,” Journal of Luoyang Technology College,2003, 13(1), 22-23

Advances in Water Resources and Hydropower Science and Technology, 2015, 35 (05): 27-35
On void size distribution of granular materials.
European Journal of Environmental and Civil Engineering, 2014, 18(6): 683-698
Chinese Journal of Geotechnical Engineering, 2017, 39(10): 1884-1891
Canadian Geotechnical Journal, 2012, 49(1): 45-58.

Shaanxi University of Science & Technology， Xi'an 710021， China； 2 School of Chemistry and Chemical Engineering，Shaanxi University of Science & Technology， Xi'an 710021， China amail: lyt@sust.edu.cn bmail: zhaomingtaoshida@126.com Keywords: Ferrocene; Schiff base; 1,3,4-Thiadiazole; Synthesis ; Antibacterial activity.
Introduction Ferrocene and its derivatives have shown a broad variety of application prospects in homogeneous catalysis,1–3 material science,4 nonlinear optics5–7 and molecular sensors,8–10etc.
Acknowledgement The authors are thankful to Shaanxi University of Science & Technology for FTIR and 1HNMR analysis.
References [1] A,Togni and T,Hayashi: Ferrocene: Homogeneous Catalysis,Organic Synthesis and Material Science ( VCH, Pakistan 1995)
Spinelli, C.Moustrou and B.Mandrand: Acids Res Vol. 32 (2004), p. 5310 [11] Jumat.Salimon, Nadia.Salih and Emad.Yousif: Australian Journal of Basic and Applied Sciences Vol.7 (2010), p. 2016 [12] L.F.Landy: The Chemistry of Macrocyclic Ligand Complexes (Cambridge University Press, England 1989)

Materials Samples: 6 kinds of yogurt and five kinds of cheese were provided by Wuhan Bright Dairy Company, three kinds of milk were provided by Zhengzhou Bright Dairy Company.
Modern Food Science and Technology, 2005, 21: 133-136
EMBO Journal, 2013, 32: 385-394
Science, 2007, 315: 1709-1712
Food Science, 2013, 34: 153-157

Theoretical calculation of β transition temperature of Ti-6Al-4V from valence electron level Hua Qua, Weidong Liub School of Materials Science and Engineering, Liaoning University of Technology, Jinzhou 121001, China aliutongzi@sina.com, blgveslwd@sina.com Key words: titanium alloy; β transition temperature; valence electron structure; calculation Abstract.
Acknowledgements This work was supported by the science and technology foundation of Liaoning Province (Grant No. 20031083) and the science and technology project of Education Department of Liaoning Province (Grant No.
References [1] Yutao Li , Geng Lin, Xu Bin , et al: Chinese journal of rare metals Vol. 30 (2006), p. 231 [2] Xin shewei, Zhao yongqing and Zeng weidong: Titanium industry progress Vol. 25 (2008), p. 26 [3] C.
Peters: Titanium and Titanium alloys (Chemical Industry Press, Beijing 2005) [4] Ruihuang Yu: Chinese science bulletin (in Chinese) Vol. 23 (1978), p. 217 [5] Ruilin Zhang: The Empirical Electron Theory of Solids and Molecules (Jilin science and Technology Press, Changchun 1993) [6] Zhilin Liu, Zhilin Li and Weidong Liu: Electron structure and properties of interface (in Chinese) (Science publishing house, Beijing 2002) [7] Weidong Liu, Zhilin Liu and Hua Qu: Acta metall sin Vol. 38 (2002), p. 1037 [8] Weidong Liu, Zhilin Liu and Hua Qu: Acta metall sin Vol. 38 (2002), p. 1246

Intrduction As new structural materials, metal matrix composites (MMCs) are attracting attention because of their superior mechanical and thermal properties compared to those of un-reinforced ones [1,2] .
It has well been known, the residual stress in composite materials can be of critical importance to crack growth.
Huang and D.Yan, Journal of Materials Science Letters 1999 (18):213-216
Ashby, Elservier materials selector, Elservier Science Publishers Ltd.,(1991) [6]P.
[14]ASTM E-8 'The test method for tension testing of metallic materials', American society of testing and materials, Race Street, Philadelphia, PA, 1995

The technological shift towards electric mobility affects not only the development of technical components but is also accompanied by a change in the material composition of vehicles.
From a materials perspective, estimations on the material demand for energy storage are still difficult to assess, as it is still unclear which of the so far proposed technologies will prevail.
Even within one technological concept (such as batteries), a broad range of different approaches with differing material demands exists (e.g. lithium-ion, redox flow, iron-air batteries).
Tercero Espinoza, Journal of Cleaner Production 2018 (submitted)
Rauch, Proceedings of the National Academy of Sciences of the United States of America 2009, 106 (45), 18920 – 18925.

Acknowledgements The grant supports from National Natural Science Foundation of China (NO. 51105034) is greatly acknowledged.
Liang, A methodology for trading-off performance and robustness under uncertainty, ASME Journal of Mechanical Design 128(4) (2006) 856-863
Choi, A new study on reliability-based design optimization, ASME Journal of Mechanical Design 121(4) (1999) 557-564
Doong, Study of an assembly tolerance allocation model based on Monte Carlo simulation, Journal of Materials Processing Technology 70(1-3) (1997) 9-16
Yang, A new sparse grid based method for uncertainty propagation, Journal of Structural and Multidisciplinary Optimization 41(3) (2010) 335-349

Introduction Because of the excellent physicochemical characteristics and chemical properties, kaolin are very important raw materials in industries such as ceramics, paper manufacture, pigments, rubbers, medicine and so on.
Materials and methods Reagent.
Acknowledgements This work was financially supported by Hebei province science and technology research and development program (11215122D).
Journal of Nanchang University (Engineering &Technology), 2012, 34(3): 216-219.
Coal Science and Technology, 2012, 40(7): 120-124.