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Such as artificial vertebrae or intervertebral spacers, filling material and some other bone repairing materials [3-5] .
It demonstrated MSC could adhere onto the surface of porous materials and grow well.
The material is expected to be good candidate for bone repairing and bone tissue engineering scaffold materials.
Sci. : Materials in Medicine Vol. 15 (2004), p. 859 [2] M.
Nakamura: Journal of Biomedical Materials Research Vol 28 (1994), p. 365 [3] T.

Acid Red 27 by immobilized ZnO on glass plates in continuous-mode, Journal of Hazardous Materials. 140 (2007) 257–263
Sud, Studies on photodegradation of two commercial dyes in aqueous phase using different photocatalysts, Journal of Hazardous Materials. 141 (2007) 581–590
Jasra, Photocatalytic degradation of dyes and organic contaminants in water using nanocrystalline anatase and rutile TiO2, Science and Technology of Advanced Materials. 8 (2007) 455-462
Sivakumar, Effect of deposition of Ag on TiO2 nanoparticles on the photodegradation of Reactive Yellow-17, Journal of Hazardous Materials. 147 (2007) 906–913
Direct Red 23 in aqueous solutions under UV irradiation using SrTiO3/CeO2 composite as the catalyst, Journal of Hazardous Materials. 152 (2008) 1301–1308

At present, however, the high cost of materials is limiting the commercial application of PEMFCs.
Moreover, metallic materials can be used to manufacture thin plates with flow channels, thus significantly reducing the volume and the weight of PEMFC.
The main problems associated with the use of metallic materials, however, are corrosion or dissolution, because PEMFC environments are weakly acidic media containing SO4 2−, Cl−, F− etc.
Corrosion Science, 52(2010):229-234 [4] L.M.
Journal of Power Sources, 168(2007):184-190 [8] M.

Nakagawa: Journal of Materials Processing Technology.
Andersson: Journal of Materials Processing Technology.
[4] Dong Hongzhi, Lin Zhongqin: Journal of Materials Processing Technology.
Kim: Journal of Materials Processing Technology.
Ruan, etc.: Journal of Materials Processing Technology, Vol.187-188(2007), pp.227-231.

More materials are removed near the center than near the edge of jet.
Their speed and the kinetic energy are lower and not sufficient to cut materials or cause mass material removal.
Guo: Journal of Materials Processing Technology Vol. (121) (2002), pp: 390-394
Chang: Journal of Materials Processing Technology Vol. (40) (1994), pp: 287-304
Ramakrishnam: Journal of Materials Processing Technology Vol. (121) (2002), pp: 102-106

Analysis of experiment teaching material using at present.
Analysis of other experiment teaching material.
The five teaching materials[20-25] using different remote sensing software didn't compile with experiment teaching style, but they still had considerable practicability.
The data wasn't inconsecutive, and the teaching materials price were expensive.
(in Chinese) [3] Qing LI, Journal of Liaoning Normal University(Natural Science Edition),vol. 4(2007), pp. 123–126.

Ultrasonic Effect on Fabrication of Intercalated MgAl-LDH/PVA Nanocomposites via Exfoliation-Adsorption Route Bao-guang Lia, Yong-zi Xu, Lu Bai, Huan Dai, Cai-cai Xie, Hai-bin Lib* School of Materials Science and Engineering, Yunnan University, Kunming, Yunnan, 650091, P.R.
Such natural materials inspire synthetic nanocomposites with unique physical or chemical properties based on 2-dimensional nanosheets and polymer [3].
Yu: Journal of Macromolecular Science Part B Vol. 53 (2014) No.10, p. 1601 [6] P.
Greenland: Journal of colloid Science Vol. 18 (1963), p. 647 [12] D.
Hobbie: Journal of Colloid and interface Science Vol. 274 (2004), p. 515

Material and methods Experimental equipments.
Materials.
In this study, materials could be divided to wire electrode and heat sink.
Lecheheb, Micro electro-discharge machining of ink jet nozzles: optimum selection of material and machining parameters, Journal of Materials Processing Technology 58, 53 (1996)
Megtert, Mircofabrication: LIGA-X and applications, Applied Surface Science 164, 97 (2000)

Materials and Methods Poly (methyl methacrylate) (PMMA), acetone, ammonium trifluoromethane sulphonate or ammonium triflate (NH4CF3SO3), ethylene carbonate (EC) are used to prepare SPEs and GPEs.
Ahmed, A conceptual review on polymer electrolytes and ion transport model, Journal of Science: Advanced Materials and Devices 3 (2018) 1–17
Guruviah, Preparation and characterizations of PMMA–PVDF based polymer composite electrolyte materials for dye-sensitized solar cell, Current Applied Physics 18 (2018) 619–625
Ali, Electrochemical properties of glyme based plasticizer on gel polymer electrolytes doped with lithium bis(trifluoromethanesulfonyl)imide, Materials Science Forum 846 (2016) 534–538
Kanchan, Effect of PC: DEC plasticizers on structural and electrical properties of PVDF–HFP:PMMA based gel polymer electrolyte system, Journal of Materials Science: Materials in Electronics 30 (2019) 12260–12268.

Tianjin Li[22] has investigated the potential of simultaneous removal of SO2 and NO by low cost sorbent-catalysts prepared by lime, fly ash and industrial waste materials.
[9] Materials and Structures Volume 38,Number 1(2005)：63-72,Scientific Reports ,Effect of fly ash and slag on the fracture characteristics of high performance concrete.B.
[10] Materials and Structures Volume 35,Number 9(2002), 536-540, Strength development of concretes with ordinary Portland cement, slag or fly ash cured at different temperatures Ö.
Journal of Hunan University of Arts and Science(Natural Science Edition).Vol.19,NO.1,2007,3
Simultaneous removal of SO2 and NO by low cost sorbent-catalysts prepared by lime, fly ash and industrial waste materials.Korean Journal of Chemical Engineering 2007,24(6):1113-1117