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The observed changes affect the catalytic properties of the materials obtained which was confirmed by the catalytic tests undertaken with CH4.
Introduction Cerium dioxide based materials have been mainly used as catalysts and pigments in ceramics or glasses.
They are also materials of great interest for gas sensor devices.
Munuera, Journal of Catalysis, 195, 207-216, (2000)
[2] A.Trovarelli, Catalysis Review- Science and Engineering, 38, 4,439-520, (1996)

There are several applications introduced by public journals, such as SC-CO2 to extract cholesterol from biological materials, egg yolk[7],cow brain[8],pork[9],goat placenta[10] and soft-shell turtle fish egg[11].
Materials and Methods Materials.
Srinivasa kannan, et al: Journal of Supercritical Fluids, vol. 32( 2004), p. 231-238
Socantaype: Journal of Supercritical Fluids, vol.16(2000), p.225-232
[17]Li Li, Yufeng Liu, Huacheng Tang, et al: Food Science (in Chinese), vol. 28(4) ( 2007), p. 289-291

Experimental Materials and Sample Preparation.
Mohan: Journal of applied polymer science, Vol. 70 (1998) No.11, p.2251
Nilsen: Construction and Building Materials, Vol. 25 (2011) No.4, p.2122
Wang: Wiley Inter Science, Vol. (2007), p.612
Saurina: Journal of Applied Polymer Science, Vol. 60 (1996) No.2, p.153

Cristian Baban, G.I.Rusu: Applied Surface Science Vol.211 (2003) p. 6
Cheng-min Shen, Xiao-gang Zhang, Hu-lin Li: Materials Science and Engineering B Vol.84 (2001) p.265 [7].
T.Mahalingam, S.Thanikaikarasan, R.Chandramohan, M.Raja, C.Sanjeeviraja, Jong- Ho Kim, Yong Deak Kim: Materials Chemistry and Physics Vol.106 (2007) p.369
S.Thanikaikarasan, T.Mahalingam, M.Raja, Taekyu Kim, Yong Deak Kim: Journal of Materials Science:Materials in Electronics (In Press) [9].
Journal of Physics D: Applied Physics Vol.25 (1992) p.1488

Journal of Biomechanics, 1999, 32: 477-484
Science Press, Beijing, 1998.
Chinese Journal of Sersors and Actuators. 2006, 19 (5): 1652-1654(in Chinese)
Materials for Mechanical Engineering, 2003, 27(3): 8-11(in Chinese)
Science, 1980,207: 1077-1079

Introduction The study of the fatigue phenomena is more complex for composite materials than for the conventional ones.
These boundaries separate the constituent materials that have different responses and different resistances to the long-term applications of external influences [1].
A wide literature review showed that the fatigue behavior of composite materials is dependent on many factors.
Harris The Use of Neural Networks for the Predication of Fatigue Lives of Composite Materials, Composites Part A: Applied Science and Manufacturing, Vol. 30 (10), pp. 1159-1169, (1999)
Serra, Predication of Fatigue Strength of composite Laminates by Means of Neural Networks, Key Engineering Materials, Vol. 144, pp. 231- 240 (1998)

The material of rubber is smashed and kneaded by mixer with different-speed meshing movement between main mixer shaft and the cleaning shaft.
Fig.2 The finite element model of the mixer shaft 1.2 Mechanics Analysis As known as mixing principle, the mixer shaft can be deformed under the exciting force acting on the mixer shaft surface when the mixer shaft smashing and kneading materials [3].
Here, material of shaft is carbon steel [5], its main attribute is shown in table 1. 2.2 Model building, Element selecting and Mesh dividing The full-scale mock-up of mixer shaft is built by Solid Works.
Journal of Qingdao University of Science and Technology.
Journal of Qingdao University of Science and Technology，Vol.29-1 (2008), p. 57-60

The most widely used and least expensive polymer resins are the polyesters and vinyl esters; these matrix materials are used primarily for glass fiber-reinforced composites.
As the raw materials of the composites are liquid and glass hollow spheres, the flexural test specimens were cast to shape.The mixture of glass powder, resin and accelerator was blended with mechanical blender to ensure a more homogenous mixture.
[2] W.D.Callister: Materials Science and Engineering: An Introduction (Wiley, USA 2003), pp. 505, 550
Kumagai, Journal of Material Science, Vol. 23 (1988), pp. 1182-1188
Trada: accepted for publication Journal of Applied Polymer Science (2011).

Recently, LCD of IT fields, DVD discs also lead the demands of MMAs’ composited materials to quickly increase.
The suspension copolymerizing reaction conditions was studied in this thesis, effect factors of resin yields and properties in water medium, like initiator kinds, reaction time, dispersants, also, used a new dispersant, organic-montmorillonite (O-MMT), which can not be found in references, made the polymerization technics become better. 2 Experimental part 2.1 Materials Styrene (St; A.P.
Wei and Y.P.Bai: Polymeric Materials Science & Engineering, Vol.16 (2000).p. 173~175, In Chinese [2]HUANG F CH, KE CH H.
:Journal of Applied Polymer Science, Vol.80(1) (2001). p.39 - 46
Research Fields: Preparation and Modification of Functional Polymers & Nano-composited Materials.

North, Metallurgical and Materials Transactions A, 40A, (2009). 920-931
Wang, Journal of Metallurgy, (2009) [3] L.
Kokawa , Texture Produced by Abnormal Grain Growth in Friction Stir-Welded Aluminum Alloy 1050, Metallurgical and Materials Transactions A, 44, 3, (2013) 1153-1157 [7] K.
Svenson, Crystallographic texture and the austenite grain structure of low-alloy teel weld deposits, Journal of Materials Science Letters, 10 (1991) 142-144
DebRoy, Current Issues and Problems in Welding Science, Science, 257 (1992) 497