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Structure and material of the ultra-precision grinding machine tool The grinding machine has 4-axis structure consisted of 3-axis of x, y, z and axis of table rotation and has a table of 400 x 400 mm.
Table 2 shows properties of the materials.
Figure 1 Main structure module of the grinding machine Figure 2 Finite element model of the grinding machine Table 2 Properties of the materials Analysis with equivalent stiffnesses of LM guides The grinding machine uses linear motors and linear motion (LM) guides which move x, y, z-axis tables.
Elasticity of SS400 material is twice that of GC300, as shown in Table 2.
Lee, Structual Design and Dvaluation of the Three Axis Ultra-precision CNC Grinding Machine, Journal of mechanical science and technology, Vol. 22, NO. 2 (1995), pp. 172-179 [3] S.

Journal of Applied Mechanics and Technical Physics. 44, 6 (2003) 890-899
Advanced Materials Research. 915-916 (2014) 341-344
Applied Mechanics and Materials. 635-637 (2014) 354-357
Advanced Materials Research. 915-916 (2014) 345-348
Applied Mechanics and Materials. 635-637 (2014) 155-158

Property of Steel Fiber Steel fiber is a kind of long fiber into which raw materials such as thin steel scrap and old steel wire rope after disconnecting and cleaning are cut.
As a good choice for reinforced material in bituminous mixture , steel fiber’s primary strength include tensile strength and adhesion strength.
[4] LI Wenying ,HAN Liu, GUAN Ningfeng, study of fiber affect on the properties of asphalt concrete[J].Liao ning Science and Technology of Communication, 2004(2): 14-16
[7] B.Birgisson, M.ASCE etc.Miscstructural simulation of asphalt materials:Modeling and experimental studies.
Journal Of Materials In Civil Engineering.

Introduction Powder Extrusion is a manufacturing process, which allows the production of fully dense materials.
Presintering or preheating the compacts before extrusion decrease the hardness of the material.
At the periphery, the material experiences a higher strain.
On the other hand, the extrusion process leads to an increase of hardness in the material (Table 2 vs.
Journal of Materials Science, 1991.

Introduction Ultra-fine grain organization has excellent mechanical properties, such as high strength, good low temperature impact toughness and dynamic strength in high speed rate condition , therefore it will be widely applied to the engineering materials in the future [1,2].
There are many factors in relation to the refinement of steel material organization, among which temperature and strain are the necessary conditions of fabricating ultra-fine grain.
The multi-direction and not simultaneously process were more effectively import large plastic strain into centre of materials.
Materials Science and Engineering A. 466(2007) 114–122
Journal of Materials Processing Technology. 140(2003) 505–508.

Introduction Zinc Oxide (ZnO) is a wide-bandgap II-VI material with a promising future in blue-to-ultraviolet (UV) optoelectronic applications.
The discrepancy may be due to the different approach of probing the materials as well as the different working principle of these techniques.
Both results are contradicted with each other due to different approach of probing the materials as well as the different working principle of these techniques.
Mahmud; Journal of Alloys and Compound (2011) Vol. 509 (9) (2011), p. 4035 [6] M.
Yun, S.Y.Lee; Materials Science and Engineering Vol.

At the same time, is also facing the disorderly exploitation, lack of resources in China's building materials industry of contradiction.
New wall materials.We can produce concrete block bricks, paving brick, brick and other building materials will be a crushed waste concrete, can also be made of hollow concrete block.
Acknowledgements Foundation item: Chinese Zhangjiakou City in Hebei province 2012 city science and technology research and development plan of industrial field self-financing project ( 12210153B ) References [1] Xuebin Xu.
By using waste concrete research in China Vo1.6 Journal of Shanxi Industrial Vocational College No.2 Jun.2011 11 ~ 13 [4] Qiang Wu.
A discussion on waste concrete recycled technology architecture and decoration of 2011.08187 ~ 188 [5] Zhiyao Wang, Chen Cao , Zhuang Li , You Wang and Yi Ding as the recycled aggregate and admixtures abandoned concrete utilization of Guangdong building materials 2011NO.4 20 ~ 23

Study on Nutrient Removal Performance and Biological Community Structure in Hybrid Biofilm Reactor Lu ZHOU1,a, Ge LI1,2, Hang-sik SHIN3, Lili JIANG1,4, Guofeng FANG1, Lizhen XING2 and Tao LI1 1School of Environmental, Tsinghua University, Beijing 100084, China 2Department of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China 3Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea 4College of Urban Construction, Hebei University of Engineering, Handan 056038, China azhoulu@mail.tsinghua.edu.cn Keywords: wastewater treatment; hybrid biofilm reactor; removal of nitrogen and phosphorus; microbial community structure; PCR-DGGE Abstract.
Materials and Methods Equipment and Operating Conditions.
Bei Jing: China Environmental Science Press, (in Chinese)
Chinese Journal of Environmental Science 30(2): 499-503(in Chinese)
Journal of Nuclear Agricultural Sciences 21(4): 417-420 (in Chinese)

The development for structure damping control technology is the product of seismic theory and practice developed to a certain stage, which is the subject intersection of civil engineering, earthquake engineering, materials science, computer technology and control technology etc.
Acknowledgements This work was financially supported by the natural science foundation of State funding (10872178), shandong science foundation (ZR2009FM074), the Shandong graduate student innovation fund (SDYY06086), and Higher Education Reform in Shandong Province Project (2009188).
[9] HungHsiaohui, YangYeong Bin: A Review of Researches on Ground-Borne Vibrations with Emphasis on Those Induced by Trains [J].Proceeding of the National Science Counci, ROC(A) Vol, 25(1) (2001), p. 1-16 [10] BalendraT, ChuaKH, LoKW, et a.l: Steady-State Vibration of Subway-Soil-Building System [J].
Journal of Engineering Mechanics Vol, 115(1) (1989), p. 145-162 [11] Yuncheng Feng, Bin Yan, ZongJun Mou: The fluid viscous dampers research for south branching bridge of Xiamen sea-crossing bridge (China journal of highway, 2008, 11)

The microstructure of this material consists of a γ matrix strengthened by cubic γ' precipitates.
Acknowledgement We gratefully acknowledge the National Natural Science Foundation (50371042 and 10276020).
Directionally Solidified Non-hafnium Superalloy and Its Overload Mechanical Damage, Materials for Mechanical Engineering, Vol.25(2001):4-7 [2] Y.R.Zheng, Z.C.Ruan, S.C.Wang.
ACTA M ETALLURGICA SINICA, Vol.31(1995)(suppl.:325-329 [3] Masakazu Okazaki(Yasuhiro Yamazaki)Creep-fatigue small crack propagation in a single crystal Ni-base superalloy, CMSX-2 Microstructural influences and environmental effects[J](International Journal of Fatigue)1999,S79-S86 [4] R.Bürgel(P.D.Portella)J.Preuhs(Recristallization in single crystals of nickel base superalloys[J])TMS(The Minerals.Metals&Materials Society A) Superalloy2000, 229 - 238 [5] W.L.Hu, Effect of deformation quantity on recrystallization activation energy of Al Al-5Mg alloy(Physical Test)2003,2:21-22 [6] S.H.
Cyclic Oxidation behavior and recrystallization of cold-rolled Ni3Al foils, Materials Letters(Vol.58(2004):2868 - 2871