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Materials and methods Sampling.
B., Julián B., et al.: Science of the Total Environment.
Roselli: Journal of Radioanalytical and Nuclear Chemistry.
Liu et al.: Journal of Hohai University (Natural Sciences).
Š., et al.: Chemical Engineering Journal.

Canyurt [2] proposed the Genetic Algorithm Welding Strength Estimation Model (GAWSEM) to estimate the mechanical properties of the welded joint for the brass materials.
The 150x200x4.5mm mild steel with SS330 materials and steel wire with a diameter of 1.2mm for the butt welding were employed for experiment.
Canyurt: Estimation of welded joint strength using genetic algorithm approach, International Journal of Mechanical Sciences 47 (8), August, (2005) 1249-1261
Ferraresi: Comparison between genetic algorithms and response surface methodology in GMAW welding optimization, Journal of Materials Processing Technology 160 (1), 1 March, (2005) 70-76
Meran: Prediction of the optimized welding parameters for the joined brass plates using genetic algorithm, Materials & Design 27 (5), (2006) 356-363

Preparation of N, O-carboxymethyl chitosan–Human-like collagen microspheres for drug delivery PEI MA,1,a RAN SU,1,b and DAI-DI FAN,1,c* 1 Shaanxi R&D Center of Biomaterials and Fermentation Engineering, Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi’an, Shaanxi 710069, China amapei@nwu.edu.cn, bsuranxida@163.com, cfandaidi@nwu.edu.cn Keywords: Cs, NOCC, HLC, microspheres.
Hydrogels microspheres are polymeric materials that have a three-dimensional network structure and can swell considerably in aqueous medium without dissolution.
Materials and methods 2.1.
Materials Sodium tripolyphosphate (TPP) and chitosan were purchased from Sigma (USA).
Sung, A novel pH-sensitive hydrogel composed of N,O-carboxymethyl chitosan and alginate cross-linked by genipin for protein drug delivery, Journal of Controlled Release. 96 (2004) 285–300

Export the entire model form Solidworks as .xt file[4].and import it to dynamics simulation software ADAMS, then give the corresponding materials information to every part.
The details are in the Table 2.The material of roller is elastic acrylic, the wheel support body is high-strength aluminum, and the body is steel.
But in practical applications, we should also be comprehensive consideration of the roller materials, number of the roller, and the wheel support way, combined with perfect control strategies to achieve the ideal Omni-directional movement.
References [1] GUAN Liying, HAO Xin, Design of Mecanum Wheels of Omni-directional Electric Forklifts [J],JOURNAL OF ACADEMY OF MILITARY TRANSPORTATION，Tianjin, China, 2009
[5] FAN Qinshan, YIN Yajun, Mechanics of materials[M], Beijing:Tsinghua University Press, 2008 [6] Jefri Efendi, Mohd Salih, Designing Omni-Directional Mobile Robot with Mecanum Wheel[J], American Journal of Applied Science s 3 (5):1831-1835,2006

[3] A.Molinari, M.Pellizzari, S.Gialanella, G.Straffelini, K.H.Stiasney, Effect of deep cryogenic treatment on the Mechanical properties of tool steels, Journal of Material Processing Technology 118 (2001) 350-355
[4] V.Leskovsek, B.Ule, Influence of Deep Cryogenic Treatment on Microstructure, Mechanical Properties and Dimensional Changes of Vacuum Heat-Treated High-speed Steel, Heat Treatment of Metals, 2002.3 pp. 72-76 [5] J.Y.Huang, Y.T.Zhu, X.Z.Liao, I.J.Beyerlein, M.A.Bourke, T.E.Mitchell, Microstructure of cryogenic treated M2 tool steel, Materials and Engineering, A 339 (2003) pp. 241-244
Iyer, R.K.Paretkar, D.R.Peshwe, “ Deep subzero processing of metals and alloys: Evolution of microstructure of AISI T42 tool steel, Journal of Materials and Manufacturing Processes, 24: 718 – 722, 2009
[7] J.Y.Huang, Y.T.Zhu, X.Z.Liao, I.J.Beyerlein, M.A.Bourke, T.E.Mitchell, Microstructure of cryogenic treated M2 tool steel, Materials and Engineering, A 339 (2003) pp. 241-244
[9] Magnus Bergstrom, The Eta-carbides in the ternary system Fe-W-C at 12500C, Material Science and Engineering, 27 (1977) 257-269

The RF card on the material surface, as a kind of material (Electronic) label, through the portable handheld reader realize material identification and complete the tag data reading and writing, through two-way information transmission network, the final completion of the background server database updating of the information, to realize the dynamic management of equipment information.
Fixed reader and the PC machine is connected through the RS232 interface, through the development of label read-write subroutine to achieve label information initialization, the material information to the label in the list, as the electronic archives materials.
Acknowledgements This work was financially supported by the Xijing University Science Foundation (XJ120219) and Military Foundation Project.
Vol. 11 (2007), p. 56 [4] Lei Fu, Lijun Qiu: Journal of The Fourth Military Medical University (In Chinese).
Vol. 28 (2007), p. 1329 [5] Jun Yin, Jian Wang, Kaiyuan Li et al: Chinese Journal of Management (In Chinese).

Materials and Methods 2.1 Material Silk fbroin was supplied by Shanghai Chengshao Biological Technology Co., Ltd., (Shanghai, China).
Samples were stretched at a speed of 10 mm/min The crosslinking degree, molecular weight, properties of additives and solvents affect the mechanical properties of materials.
Dong, Electrospun Polylactide/Silk Fibroin-Gelatin Composite Tubular Scaffolds for Small-Diameter Tissue Engineering Blood Vessels, Journal of Applied Polymer Science 113(4) (2009) 2675-2682
Svorcik, Modulation of cell adhesion, proliferation and differentiation on materials designed for body implants, Biotechnol.
Lisa, Bone and vascular endothelial cells in cultures on nanocrystalline diamond films, Diamond and Related Materials 17(7-10) (2008) 1405-1409

Journal of Materials Processing Technology, Volume 240, 2017, pp. 397-403
Materials Letters, 156, 2015, pp. 202–204
Journal of Materials Processing Technology, 213, 2013, pp. 791–800
Materials science and technology, 2018, Vol. 34, №. 8, pp. 895–916. https://doi.org/10.1080/02670836.2018.1455012
Journal of Materials Processing Technology 148, 2004, pp. 93–102

Two new thermotropic liquid crystalline polyesters and their composites: Synthesis and characterization Zhang chuanji1, a, Huang zhixiong2,b Shi minxian3,c Zhang ming4,d 1, 2,3 Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China a luqing850604@163.com, b zhixiongh@whut.edu.cn, c minxianshi@whut.edu.cn ,d mz12095@126.com Keywords: Thermotropic liquid crystalline; characterization; Synthesis; Liquid crystal texture; Glass fiber Abstract.
Materials The purification or drying of compounds was carried out according to the common procedure.4,4'-Biphenol, isophthalic acid,terephthalic acid, p-hydroxybenzoic acid, glass fiber,1,3-dibromobutane ,acetic anhydride, 1,6-dibromohexane ,zinc acetate.
The chemical structure of intermediates and target materials were analyzed by infrared spectra with a Brucker PS-15 Transform spectrophotometer using KBr pellets.
[6]Chung TS:Journal of Polymer Science Part C Volume 24, Issue 7,(1986) , p. 299-302
Cambridge: Cambridge University Press; (1992),p.235 [10]HussainF,HojjatiM,OkamotoM,GorgaRE:Journal of Composite Materials Volume 40, Issue 17,(2006) , p. 1511

Also costs of materials, equipment, energy consumption will effect the technological process competitiveness estimation.
Skripkina, The models of supporting the strategic decisions on engineering products competitiveness, Applied Mechanics and Materials. 770 (2015) 656-661
Mu, The research on product quality competitiveness based on innovation, Advanced Materials Research. 744 (2013) 591-594
Suet, The fuzzy comprehensive assessment of brand competitiveness of property insurance companies, Applied Mechanics and Materials. 55-57 (2011) 1489-1493
Zhao, Optimization of evaluation indexes of competitiveness of science technology and innovation based on quantitative approach, Journal of Discrete Mathematical Sciences and Cryptography. 20(6-7) (2017) 1357-1362