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Simulation of Recrystallization Behavior and Austenite Grain Size Evolution during Hot Deformation of Low Carbon Steel Using the Flow Stress Jian Wanga, Hong Xiaob, Hongbiao Xiec, Xiumei Xud School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China National Engineering Research Center for Equipment and Technology of Cold Rolling Strip State Key Laboratory of Metastable Materials Science and Technology ajwang@ysu.edu.cn, bxhh@ysu.edu.cn, chbxie@ysu.edu.cn, dxxm@ysu.edu.cn Keywords: Recrystallization; Flow stress; Hot Deformation; Grain Size; Dislocation density Abstract.
The kinetics of recrystallization is connected with dislocation density, but in real materials, recrystallization is almost independent from dislocation density.
Acknowledgements The authors would like to thank the Natural Science Foundation of Hebei Province of China (E2009000397) and the State Key Laboratory of Metastable Materials Science and Technology of Yanshan University.
The authors are likewise grateful to Professor Svyetlichnyy of the AGH University of Technology and Science.
Mead: Computer Journal.

On account of high solubility and low viscosity of hyperbranched polymers, it is possible to find their use in crosslinking processes to explore available polymer materials in industry.
Polyurethanes (PUs) are unique polymeric materials with a wide range of physical and chemical properties [3,4].
Recently, hyperbranched polymers have been used as the ascrosslinking agents to synthesize the PU and other materials [5-7].
Up till now, however, few attempts have been made to prepare the waterborne hyperbranched polyurethane materials and their application in applied fields especiallyin coatings and adhesives is rarely reported.
Journal of Colloid Science, J.

A micro-cavity can modify the spontaneous emission properties of the materials inside spatially and spectrally owing to the alteration of the optical mode density within it.
As a new laser gain media, organic semiconductor materials have been paid attention to in recent years.
“Transform-limited, narrow-line width lasing action in organic semiconductor microcavities” ,Science, 279(23),553(1998)
Semiconducting( conjugated) polymers as materials for solid-state lasers, Adv.
[11] Yokoyama H, Physics and device applications of optical microcavities, Science, 256(1992)66-70

Homogeneous distribution of ceramic particles in a fine grained matrix can yield good mechanical and wear resistance properties of composite materials.
Hence, wear resistance of soft materials can be improved by developing a composite layer near the surface region, which can exhibit enhanced wear and erosion resistance without degrading toughness.
Zheng, Damping capacities and tensile properties in Grp/AZ91 and SiCp/Grp/AZ91 magnesium matrix composites, Materials Science and Engineering A 527 (2010) 7873–7877
Journal of Material Processing Technology, 211(2011) 750–758
Faraji, P.Asadi, Characterization of AZ91/alumina nanocomposite produced by FSP, Materials Science and Engineering A 528 (2011) 2431–2440.

By adding appropriate amount of rubber particles, it can significantly improve mortar performance such as the brittleness, the sound absorption, the heat insulation performance, the impact resistance and the durability of the cement-based materials on the basis of keeping the mortar’s mechanical properties [2].
The construction technology of the crumb rubber modified cement-based materials is simple, so it has good popularization and application prospects.
Experiments Materials and properties The performance indexes of grade 42.5 ordinary Portland cement are shown in Table 1.
Thus the material reduces strength, produces deformation cracks and even affects the structural work.
Journal of Southeast University (Natural Science Edition).

Experiments Material Properties.
Experimental materials conclude polyvinyl alcohol (PVA) fiber, cement, silica sand, superplasticizer, fly ash, silica fume and HPMC.
The modified polycarboxylates superplasticizer manufactured by Sika Building Materials Co., Ltd.
The training data in this study are 91groups of PVA-ECC with different fiber volume rates and different mineral adding materials and the times of freeze-thaw cycles; the predicted data are another 12 ones.
ACI Materials Journal, Vol.100 (2003), p.511 [3] Atsuhisa O, Tetsuo H, Hideki H.

Kestens3,c Ghent University, Department of Materials Science and Engineering, Technologiepark 903, Zwijnaarde, Belgium aEdgar.Gomes@UGent.be Keywords: 3D modelling, Voronoi Cells, Grain Size Distributions, Texture Abstract.
In order to circumvent these difficulties, a virtual microstructure generator to simulate a specific 3D material microstructure is proposed.
During the development of a microstructurally based material model a set of different input parameters are required for validation and optimization.
Once validated and with the boundary conditions checked, it is also useful to look for optimum microstructures when one wants to design a material.
Journal of Physics: Condensed Matter, 13:R877, 2001

Submitted to Journal of Acta Ecologica Sinica(2001) [2] Tang Ke-li.  
Soil and Water Conservation in China (Trans Science Press, China 2004) [3] Zhang yong.
Submitted to Journal of Water Resources Development Research (2004) [4] Gong ye.
Submitted to Journal of Shaanxi Water Resources (2002) [5] He De-gang, zhang Wen-dong Huang Wei-min.
Submitted to Journal of Natural Resources (2003)

This equation is valid for ,.The ambient temperature of motorized spindle is set to 22℃,the rotating speed is 8000rpm,the convection heat transfer coefficient between spindle and ambient air is 250~260W/(m2℃) .The material of the spindle is 40Cr,its thermal conductivity is 91.3W/(am).
Fig. 4 The total thermal deformation of spindle Acknowledgments The authors are most grateful to Beijing Natural Science Foundation of China (No. 3132004), CNC hydrostatic feed system static-dynamic-thermal design of analysis tools and specifications (No. 25001011201205) which support the research presented in this paper.
[2] Zhao Haitao, Yang Jiangguo,Shen Jinhua, simulation of behavior of a CNC machine tool spindle, international journal of machine tools and Manufacture. 47 (2007) 1003-1010
Tu, A thermal model for high speed motorized spindles, International Journal of Machine Tools & Manufacture. 39 (1999) 1345-1366
[4] Xu Min, Jiang Shuyun, and Cai Ying, An improved thermal model for machine tool bearings, International Journal of Machine Tools & Manufacture. 47 (2007) 53-62

But the process of oil manufacture must being done after the shell being removed, since the quality of oil can be effected seriously by the hazardous material that included in the sunflower shell.
Journal of Food Engineering . 2010
Journal of Food Engineering . 2001
Journal of Food Science . 2000
Journal of Food Engineering . 2007.