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The starting materials, high pure Y2O3, BaCO3, CuO and Fe2O3 powders, were weighed out at the nominal composition and thoroughly mixed.
Acknowledgements This work was supported by the National Natural Science Foundation of China (Grant No. 10604027) and by the Fundamental Research Funds for the Central Universities.
Niinistö, Variation of oxygen stoichiometry in BaRE(Cu0.5Fe0.5)2O5+δ double perovskites upon heat treatments under ambient and high pressure, International Journal of Inorganic Materials, 2 (2000) 203 [11] A.

PVDF piezoelectric films are new, valuable materials for sensing application and have attracted people’s attention due to their excellent characteristics (e.g. high piezoelectric coefficient, good flexibility, light weight, easy affixation, wide frequency range, etc.)
Recently, PVDF piezoelectric sensors have been applied in numerous fields[4,5], for instance, structural health monitoring, smart material and structure, various force sensors, etc.
,direction) at point 1 and point 2 are obtained as Fig.4 Photograhhs of experimental system layout Fig.5 Mechanical sketch of rail for single span (2) where is a constant which depend on material properties and geometry size of the rail.
Jin: Chinese Journal of Mechanical Engineering, Vol. 44 (2008), p. 50-56 [2] A.
Chen: Experimental Thermal and Fluid Science, Vol. 32 (2007), p. 403-414 [6] W.M.

Acknowledgements The research work was supported by Natural Science Foundation of Guangdong Provincial under Grant No.
Advanced Materials Research, Vol. 346(2012), p.477
Journal of Hydrodynamics series B-English Edition.
Advanced Materials Research.

Hovhannisyan 2, b 1,2 Institute of Mechanics, National Academy of Sciences of Armenia 24B Marshall Baghramyan, Yerevan, Armenia a aghal@mechins.sci.am, b ruben_hovh@yahoo.com Keywords: forced vibrations, elasticity, multi-layered, orthotropic plate, asymptotic method, amplitude, resonance, seismoisolator Abstract.
It is shown that when building constructions, if a thin layer of a rubberlike material is inserted between the concrete base and the foundation, it will bring to the diminution of dangerous vibrations in the base and as an effect to the increase of the construction seismosteadiness.
Fig. 2 Fig. 3 Fig. 4 In case when the upper and the lower layers are from concrete (E=3.0262*10 10 Pa, G=1.0435*10 10 Pa, � =2300 kg/m 3 ) and the middle layer is from rubber, we have graphs (Fig. 6,7): From the graphs it is obvious, that if all the three layers are made from rigid-similar materials, then the vibrations amplitudes grow (even if insignificantly negligibly) from layer to layer.
When the middle layer is from a more soft material (for example, rubber), the vibration amplitudes in the upper layer diminish sharply.
(Intern. sci. journal.

Estimation of Ultimate Limit Statefor Stiffened-plates Structures: Applying fora Very Large Ore Carrier Structures Designed by IACS Common Structural Rules Hung ChienDoa, Wei Jiangb, JianxinJinc State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P.R.
In popular ship design structures, the material of plates often differs from that of stiffeners.
Meanwhile, the Young’s modulus E and Poisson’s ratio n of these two materials are with the same values.For convenient analysis of a hypothetical ship object but without the loss of generality, the outer bottom stiffened-plate structures are designed with the same material parameters, thus we have sYeq = sYp = sYs = sY = 355 MPa.
Yan, Dynamic characteristic analysis of precise long stroke linear motor with air-bearing in optical lithography, Chinese Journal of Mechanical Engineering (English Edition), 21(2008)17-22

[3] T.Haga, M.Ikawa, H.Watari, S.Kumai, High speed twin roll casting of Al-3Si-0.6Mg strip, Journal. of Achievements in Materials and Manufacturing Engineering, 17(2006)337-340
[6] T.Haga, R.Nakamura, S.Kumai and H.Watari, Clad strip casting by a twin roll caster, Archives of Materials Science and Engineering, Vol.37(2009),117-124.

Main raw materials: heavy oil samples in Liaohe oilfield Experimental Methods Weigh a certain amount of heavy oil and add water with the mass fraction of 30% to 300mL of intermittent high-temperature autoclave soluble organic acid catalyst with the mass fraction of 0.1%, hydrogen donor mass fraction formic acid as well as urea additives with the mass fraction of 7%.
This phenomenon explains that due to evaporation and the material diluted by the heavy oil which carries aliphatic side chains (generated by thermal effects), it results in a more stable hydrocarbons.
Structure determination and analysis of asphaltine before and after upgrading and viscosity reaction under the effect of additive Infrared Spectroscopy.Infrared spectroscopy is one of the methods to identify the material structure and contained functional groups.
Journal of Zhejiang University Science Edition, 31 (6):652-656(2004) [5] Po-liang, Chao H, Weller S W.

Materials and experiments In order to perform four point bending tests at high temperature, a special high temperature set-up has been developed (Fig. 1).
Concerning the 700°C and 800°C experiments with the first experimental procedure, the 700°C grown oxide leads to bigger stress values than the layer obtained at 800°C because the material increases its ductility when temperature increases.
Birchenall: Journal of Metals (1951), p. 889 [5] J.
Nicolls: Material Science and Technology Vol. 4 (1988), p.398 [9] M.

Losertová 1,c 1 Faculty of Metallurgy and Materials Engineering, Department of Non-ferrous Metals, Refining and Recycling, VŠB - Technical University of Ostrava, Av. 17. listopadu 15, 708 33 Ostrava - Poruba, Czech Republic 2 Na Ctvrti 14, 705 00 Ostrava - Hrabuvka, Czech Republic 3Masaryk University, Faculty of Science, Department of Theoretical and Physical Chemistry, Kotarska 2, 611 37 Brno, Czech Republic a Jaromir.Drapala@vsb.cz, bvrestal@chemi.muni.cz, cmlosertova@vsb.cz Keywords: Reaction diffusivity, copper, indium, tin, ternary system, moving boundary interface, Stefan problem.
Tin containing systems seems to be the favored ones for new alloys, substituting these systems in soldering materials in electronic interconnection and packaging.
Submitted to Journal of Alloys and Compunds.

Aucouturier: Materials Science Forum Vol. 294-296 (1999), p.735 [11] B.
Gust: International Materials Reviews Vol. 42 (1997), p.155 [18] J.C.
Fisher: Journal of Applied Physics Vol. 22 (1951), p.74 [19] B.