Search results

Introduction Concrete is one of the most important materials in contemporary civil engineering，which is widely used in civil engineering, hydraulic engineering and other fields[1].
Concrete is a multi-phase material, which consists of cement, aggregate and sand.
The principle of of analysis According to Lemaitre Theory[4], the strain of damage material owing to the stress is equal to the strain of undamaged material owing to the effective stress.
Acknowledgements This work is supported by the National Nature Science Foundation of China (50878077) This work is supported by the National Science and Technology Supporting Plan(2008BAB29B03) References： [1]Wang Xiandong: Study on initial damage of concrete, Key Engineering Materials, 2009, 418:633-636 [2]Wang Xiandong: Application of Concrete Damage Theory in the Simulation of Hydraulic Structure, Hohai University,2004,3 [3]Yu Tianqin, Qian Jicheng: Damage Theory and its Application (in Chinese), Press of National Defence and Industry 1993,50-100
Journal of Hefei University of Technology,2005,28(3):308-310 [6]SL/T191—96，Design code for hydraulic concrete structures

No distinct shoulders or secondary peaks, which would indicate the presence of heavily tilted domains, can be found in the HFCVD grown material.
The material produced in our process shows a clean Raman spectrum with sharp lines for cubic silicon carbide.
Komiyama et al., “Stress reduction in epitaxial GaN films on Si using cubic SiC as intermediate layers,” Journal of Applied Physics 100, 033519 (2006) [3] J.
Zhang et al., “Epitaxial monocrystalline SiC films grown on Si by HFCVD at 780°C,” Materials Science and Engineering B75 (2000) 177179 [6] K.
Yasui et al., “LowTemperature Heteroepitaxial Growth of SiC on (100) Si Using Hot-Mesh Chemical Vapor Deposition,” Japanese Journal of Applied Physics Vol. 44, No. 3 (2005), 1361–1364 [7] J.

This study uses multi-diffusion model to simulate the release of urea for two coating materials: modified polyolefin (MPO) and latex film, based on COMSOL Multiphysics software.
This study investigates the urea release through coating layer into the outer environment (water) using multi-diffusion model on two coating materials: Modified Polyolefin (MPO) and Latex film.
Al-Zahrani, Controlled-release of fertilizers: modelling and simulation, International Journal of Engineering Science. 37 (1999) 1299–307
Knor, Urea-formaldehyde resins as packaging materials for industrial fertilisers with protracted action.
Part 4, International polymer science and technology. 14 (1987) 127

The type of supporting materials can result in different interactions between the supporting materials and the catalysts, and therefore, it can affect the growth mechanism of the carbon.
Kudus: Advanced Materials Research Vol. 364 (2012), p. 460-464 [3] M.H.A.
Mohamad: Advanced Materials Research: Vol. 364 (2012), p. 475-479
Qin: Journal of Materials Science letters; Vol. 16 (1997), p. 457–459 [6] Y.
Suzuki: Diamond and Related Materials; Vol. 16 (2007),p. 1121-1125

Wendorff: Advanced functional materials.
Jiang: Advanced Materials.
Yang: Journal of Applied Polymer Science.
Xiao, volume 6 of Packing Materials & Process (2008) [10] L.
Yang: Advanced materials.

Palais, Materials Science Forum, Vol. 679 (2011), p563
Torregrosa, Materials Science Forum, Vol. 645-648 (2010), p717
La Via, Materials Science Forum,Vol. 433 (2003), p375
Sommer, Materials Science Forum,.
Murakami, Journal of Electronic Materials, Vol. 33; No. 5 (2004).

Chnical characteristics of raw materials and preparation of TLA modified asphalt Base asphalt.
Acknowledgements The authors appreciate the support of National Natural Science Foundation of China.
Journal of Foreign Highway, 2000,20(3):30-32.
Journal of Chang'an University:Natural Science Edition, 2007, 27(3):20-24.
Journal of China and Foreign Highway, 2005, 25(4):182-184.

The uncertainty is mainly caused by the variability of materials, quality of construction, different environmental conditions, and so on [1-4].
Acknowledgements The work is supported by the Basic Science & Research Foundation of IEM, CEA (2013B07), International Science & Technology Cooperation Program of China (2012DFA70810), and Natural Science Foundation of China (50908216).
Katafygiotis: Journal of Engineering Mechanics, 124 (4) (1998), 455- 461
Soize: Journal of Sound and Vibration, 332 (10) (2013), 2379-2395
Beck: Journal of Engineering Mechanics, 130 (1) (2004), 16-33

Experimental Investigation on Varying Speed Control of Harmonic in Centreless Grinding Xintao Xia Mechatronical Engineering College, Henan University of Science and Technology, 48 Xiyuan Road, Luoyang 471003, China E-mail: xiaxt1957@163.com Keywords: quality control; centreless grinding system; varying speed grinding; rolling bearing; harmonic; roundness.
Acknowledgements This project was funded by the Natural Science Research Project of the Education Department of Henan Province (Grant No.2010B460008) and the Doctoral Scientific Research Initiation Fund of Henan University of Science and Technology (Grant No. 09001318).
References [1] Yuji Furukawa: Journal of Machine Tool Design and Research Vol. 11 (1971), p. 145
Vrabic: Journal of Materials Processing Technology Vol. 210 (2010) , p. 104
Meyer: International Journal of Machine Tools and Manufacture Vol. 48 (2008) , p. 824.

Acknowledgements The authors gratefully acknowledge the financial support of Natural science Foundation in Liaoning province, Project No.201202186; References [1]COPUR H, BILGIN N, TUNCDEMIR H, BALCI C.
The Journal of the South African Institute of Mining and Metallurgy, 2003, 103(9): 589－599
Computer Methods in Materials Science 20047,7(2):224–230
International Journal of Rock Mechanics and Mining Sciences，2004，41(8)：1 329–1 364
International Journal of Mining Engineering, 1984, 2(1): 63－71