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Experiment Instruments and materials.
Calculating formula for experimental results : The reactant conversion rate: (1) The product selectivity: (2) The yield of production: (3) Where, Xm: the conversion rate of the raw material m (m for CO, H2, CO2 or (CO + CO2))，%；S: the DME selectivity（the amount of reactant consumed divided by the consume of the quantities of the reactants by aimed products），%；Y: yield of production p (p for methanol, CO2 and DME) , %; Nm,0: the initial molar number of reaction material m, mol; Nm: the molar number of materials m at the end of the reaction, mol ; Np: the molar number of product p , mol. 1-six-way valve, 2-chromatographic column A, 3-chromatographic column B 4-TCD 5-soda asbestos column Fig.2 Schematic Diagram of Gas Pathway System for GC Analysis The total carbon conversion rate were as follows: (4) Where, NCO,0, NCO respectively
Journal of Wuhan University of Technology, 2002, 26(6)767-769.In Chinese [2] W.B.Wu, L.Chen, X.W.Wu: The kinetic study of catalytic synthesis of DME by C301 /P -γ- Al2O3[J].Natural Gas Chemical Industry, 2008, 37(12)1436-1439.In Chinese [3] F.E.Song: Study on preparation of dimethyl ether from biomass-deriver syngas[J].
Journal of Fuel Chemistry and Technology, 2010, 38(1)102-107.In Chinese [7] Fujimoto K,Asami K,Shikada T,etal: Selective Synthesis of Dimethyl Ether from Synthesis Gas[J]Chem Lett, 1984(12)2051-2054
Kunming University of Science and Technology, (2008).In Chinese [13] L.Chen: Study on the Technology of Synthesis Dimethyl Ether with Catalyst by Phophorus Modified[D].

Through adding certain percentage of hard phase (such as WC-Co powder) into the self-fluxing alloy powder (such as NiCrBSi alloy powder),preparing high-performance wear-resistant coating composite have made some progress by high temperature melting and sintering[3-4].However, such materials easily affected by different factors (such as the brazing temperature, holding time, solder, base metal conditions, etc) and bring various defects (such as porosity, inclusions, not drill through, cracking and corrosion, etc.) in high temperature brazing process, which blocking its further promotion in the engineering field.
This will not only ensure the solder material with the full effect with matrix, but also make the base metal not dissolving too much.
Journal of Refractory Metals & Hard Materials. 2009, (27) :485–491 [2] R.C.
Welding Technology, 2003,vol 24(4):92-95 Acknowledgements Science Foundation of Jiangxi province office of education of China (Grant No.
GJJ10627 );Science & Technology Pillar Program of Jiangxi Provincial Department of Science and Technology (Grant No. 2009BGB02500)

Introduction Application of piezoelectric ceramic materials as actuator is one of its potential application that has been widely developed and documented.
Goo: Design and manufacture of a lightweight piezo-composite curved actuator: Smart Materials and Structures, Vol. 11 (2002), p. 163-168
Park: Analytical design model for piezo-composite unimorph actuator and its verification using LIPCAs: Smart Materials and Structures, Vol. 13 (2004), p. 1-9
Yoon: Analysis of LIPCA Actuators: International Journal of Modern Physics B, Vol.17 (2003), p. 647-652
McGowan: Piezoelectric power requirements for active vibration control: Proceeding of SPIE, Smart Structures and Materials, Vol. 3039 (1997), p. 660

Many attempts have been made to produce deposited chromium alloys from trivalent chromium electrolytes as new materials for functional application, such as Cr-Fe[4] , Fe-Ni-Cr[5], Fe-Cr-P[2], Cr- C[3], Cr-Fe- C[6], Cr-Al2O3[7], etc.
References [1] WU Hui-Min, KANG Jian-Qiang, ZUO Zheng-Zhong, et al: Material Protection.Vol. 37 (8,2004), p.29.
(in Chinese) [2] Baosong Li, An Li, Xu Wu, et al:Journal of Alloys and Compounds.Vol.453(2008),p.93 [3] S.C.
Cesuniene:Corrosion Science.
Vol.50 (2008), p.338 [11] MA Xu,YAO Su-Wei, ZHANG Wei-Guo, et al:Acta Physico-Chimica Sinica.Vol.23 (10,2007), p.1617(in Chinese) [12] HOU Feng-Yan,WANG Wei, LIU Jia-Chen, et al:Journal of Materials Engineering.

Materials and methods Materials The jujube Xin-4 was provided by the Shun-xi jujube plantation in Jing-hai County of Tianjin,China.
The flavonoids content was expressed as mg Rutin equivalent per 1g dry material.
There are two possible reasons, first, in the further separation process some materials in the FJ-1which is synergy with flavonoids were removed.
Tianjin Science and Technology Committee support programme.
Journal of Biological Macromolecules, 47 (2010) P.445-453 [8] Pingping Zhang, et al.

Under the influence of typhoon, the house roof covering materials, and old-fashioned wooden windows frequently suffered the most serious wind damage and destruction.
The main historical reason for that is the limitation of material.
Besides, combined with the historical statistical materials of typhoon and typhoon induced house disaster, this paper also discussed the features of typhoon disaster, the wind damage of rural houses and the wind-induced damage mechanism.
Journal of Building Structures, Vol. 31, No. 10 (2010), p. 34–40.
Journal of Natural Disasters, Vol. 16, No. 6 (2007), p. 115–121.

The results have direct significance in production technology for nuclear materials. 2 Materials and methods Three test materials with different boron contents (Table 1) were melted in a vacuum induction furnace, and then cast into billets for various experiments.
Fig. 2 Effect of boron on the solidification process for test materials #0 (0 % B), #1 (0.5 % B) and #2 (1.2 % B). 3.3 Cast microstructure a) b) Fig. 3 Solidified structures of the test materials with different boron contents a) 0.56% B and b) 1.23 % B The solidified structures of the test materials were observed by FE-SEM (Fig. 3).
The test materials contained γ-Fe and M2B, M2B is iron chromium boride, (atom ratio is close to B0.9, Cr0.9, Fe1.1).
Petr: Journal of the Iron and Steel Institute of Japan Vol.34 (8) (1994), p.679 [2] M.
Wu: Transactions of Materials and Heat Treatment Vol. 27(3) (2006), p.91 [4] T.

Many studies exploring mechanisms of antibacterial activity of nano materials.
Materials ZnO nanoparticles used in this study were purchased from NAMAGO Company and had the purity of 98 percent.
Yousefi, Water disinfection using Photocatalytic process with titanium dioxide Nanoparticles, Journal of Mazandaran University of Medical Sciences 25(122) (2015) 227-238
Suh, Manufacturing of anti-viral inorganic materials from colloidal silver and titanium oxide, Revue Roumaine De Chimie 51(11) (2006) 1121
Momba, Cost-effective filter materials coated with silver nanoparticles for the removal of pathogenic bacteria in groundwater, Int j environ res public health 9(1) (2012) 244-271

As such, the material has potential applications for use in low-cost, high-temperature structural materials.
HVFS technology is used to produce FeAl intermetallic coatings with powder materials on AISI 1020 steel.
Experimental materials and methods The substrate material used was AISI 1020 steel.
The spraying materials include Fe–Al/Cr3C2 and Fe–Al/Cr3C2RE powders.
The specimen dimensions of bonding strength were Φ50mm×40mm and spraying materials were sprayed on one end face.

The used materials are the biomaterials which are intended to be in contact with biological systems.
Elements of tooth structure Materials Materials components the analyzed dental prosthesis are: The implant and the abutment which are made in titanium alloy (Ti6Al4V).
Feng Stress analysis in dental prosthesis, Computational Materials Science 49 (2010)pp. 126–133
Natali et al évaluation of stress induced in peri-implant bone tissue by misfit in multi implant prosthesis ,Centre of Mechanics of Biological Materials, University of Padova, Italy Dental Materials 22 (2006)pp.388–395
Stress distribution in dental implant with elastomeric stress barrier, Materials and Design 32 (2011)pp.282-290