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So the residual life of materials can be gained by calculating the D value.
Acknowledgements This research was supported by National Science Fund (51065024) and Jiangxi Province Educational Office Science Fund (GJJ10511) References [1] D.
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Later, we use powder as the sputtering source, adopt the method of reactive sputtering target doped powder to "sputter" and successfully produce (with SnO2-based materials) thin film gas sensors.
Using the powder sputtering method, we have produced in succession thin film gas sensors components with good performance by means of ZnO, Fe2O3 and TiO2-based materials.
Fig.1 Chip structure a) The gas sensing film is limited to the inter-digital electrode area using SnO2/x%CeO2 as materials.
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Experimental Materials.
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However, this animal feed would become a potential cause of animal or human health problems duo to its animal-origin materials, e.g. liver.
Materials and methods Inoculum and substrate.The methanogenic seed, used as inoculum to initiate the digestion reactions, was anaerobic sludge (AS) obtained from an anaerobic digestor in Jiangsu Clean Environmental Technology Co., Ltd.
Acknowledgements This work was financially supported by the National Science and Technology Support Program of China(2012BAC18B01-2), and Science and Technology Support of Jiangsu province, China (BE2012615).
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Enshi is located in Wuling southeast,special geographical location and complex geological features,unique micro-climate region,so Enshi become plant resource database in central China area.The raw material in this study are Camptotheca acuminata,Paris polyphylla Smith,Taxus mairei and Trillium tschonoskii Maxim,which are precious herbal medicines in Enshi.Among them,Trillium tschonoskii Maxim,Taxus mairei and Camptotheca acuminata are national key protected plants,in their traditional medicinal effect basis,to make full use of resources,need to improve the utilization ratio,their antioxidant activity are measured,screen eliminating oxygen free radical of active substances from Chinese herbal medicines,improve their use value,it has important significance. 1 Research materials, methods and steps 1.1 Materials, reagents and equipment 1.1.1 Materials Camptotheca acuminata,Paris polyphylla Smith,Taxus mairei and Trillium tschonoskii Maxim all from Enshi,Hubei Academy of Agricultural Sciences
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To date, many composites, such as Pd/GO[12,13], Fe/GO[14], TiO2/GO[15], Mn2O3/GO[16], have been successfully prepared and applied in catalytic field, absorbent material, and stealth material.
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Disorders of various building materials can be investigated by this method [3, 4, 5].
The variety of chosen structures, materials, defects and different excitation sources provided very good conditions for the evaluation of the measured results with recommendation for other similar diagnostic measurements.
Acknowledgement The work was supported by The Conceptual Development Of Science, Research And Innovation Project for the year 2014, assigned to VSB-TU Ostrava by Ministry of Education, Youth and Sports of the Czech Republic.
Rykalova, Analysis of glass elements fasted into the steel frame, Journal Applied Mechanics and Materials, 351-352 (2013) 208-212 [4] E.
Fabian, Analysis of the behavior of glass claddings, Journal Advanced Materials Research. 649 (2012) 41-44 [5] R.

For the difficulties of machining small hole on difficult-to-cut materials, a study of hole-making technology by pulsed electrolyte jet machining is carried out.
As these components are all made from difficult-to-cut materials, conventional mechanical drilling techniques have become deficient to meet the new requirements.
Electro-stream drilling in ECM, however, doesn’t produce the residual stresses and cracks on the workpiece material, and no damage to the material structure.
Its characteristics are similar with electro-stream drilling, so it can be assumed that the material removal mechanisms of electrolyte jet machining and electro-stream drilling are basically the same: both are the outcomes of combined processing through special electrolysis, strong chemical corrosion, and other removal materials, under a condition of high-voltage (high potential gradient), high current density and high temperature of the injection point (a peculiar phenomenon is the glow discharge on the jet point) [10].
Acknowledgements The research presented in this paper is partially funded by the Natural Science Foundation of Jiangsu Province of China under Grant（No.BK2008394）, Aviation Foundation of China under Grant （No. 20080352008） and National Nature Science Foundation of China under Grant （No. 50675103）.

The fracture resistance of all-ceramic restorations is one of the major concerns in clinical applications of these materials.
Introduction The fracture resistance of all-ceramic restorations is one of the major concerns in clinical applications of these materials.
Dental ceramics are brittle materials with a high elastic modulus.
References [1] Sadighpour L, Geramipanah F, Raeesi B, In Vitro Mechanical Tests for Modern Dental Ceramics, Journal of Dentistry, Tehran University of Medical Sciences, 2006; 3(3): 143-52
[4] Kermanshah H, Bitaraf T, Geramy A, Finite Element Analysis of IPS Empress II Ceramic Bridge Reinforced by Zirconia Bar, Journal of Dentistry, Tehran University of Medical Sciences, 2012; 9(4): 196-203