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Table 1 shows the material properties selected for the model.
Y: screw driven table X: linear motor table Z: linear motor table W: manual table C: rotary motor table Supporting frame Gantry Fig. 1 Physical picture of the machine tool Fig. 2 Finite element mode of the machine tool Table.1 Material properties of the machine tool Material ρ [kg/m3] μ E [Pa] Granite 2800 0.25 3.75×1010 Steel 7850 0.3 2.06×1011 Aluminum alloy 2700 0.3 7×1010 Finite Element Modal Analysis of the Machine Tool Modal analysis is a method of analysis, prediction, evaluation and optimization for dynamic characteristics, depending on modal parameters of vibration system.
Acknowledgments This work is supported by the Major Program of National Natural Science Foundation of China (Grant No. 50935003).
References [1] Hao Yang, Wu Yang, Daming Wang: Computing, Control and Industrial Engineering, 2011 IEEE 2nd International Conference Vol. 1 (2011), p. 223 [2] Daisuke Kono, Thomas Lorenzer, Sascha Weikert etal: Precision Engineering Vol. 34 (2010), p. 399 [3] Kang Yang and Tao Han: Journal of Jiamusi University (Natural Science) Vol. 23 (1) (2005), p. 94 [4] Yazhou Sun, Rui Wang, Kai Cheng, etal: Machinery Design & Manufacture (1) (2005), p. 94 [5] Hyung Wook Park, Young Bin Park, Steven Y.
Liang: Advanced Manufacture Technology Vol. 56 (2011), p. 1 [6] Fang Kang and Jinwei Fan: Machinery Design & Manufacture (7) (2008), p. 181 [7] Yaoman Zhang, Chunshi Liu, Zhikun Xie and Yongxian Liu: Journal of Northeastern University (Natural Science) Vol. 28 (11) (2007), p. 1628 [8] Xiaopeng Li and Zhijie Zhao: Chinese Control and Decision Conference (2011), p. 3998 [9] Hesheng Zuo and Yuying Peng: Modal Analysis on Vibration Experiment (China Railway Publishing House, Beijing 1995).

Introduction The preparations and applications of superhydrophobic surfaces have attracted researchers much attention among science researchers in recent decades[1].
There are many unsaturated impending bonds on nanomaterial surface and the material has good hydrophobic properties.
Numerical study of wall wettabilities and topography on drag reduction effect in micro-channel flow by lattice boltzmann method, Journal of Hydrodynamics, 22(2010) 366-372
[11] Zhang RL, Di QF, Wang XL et al Lattice Boltzmann Simulation of Flow in a Micro-channel , Chinese Journal of Computational Physics, 28(2011) 225-229
The hydrophobic nanoparticles adsorption layer on core surface and its properties, Advanced Materials Research, 465(2012) 239-243

According to the results of the material test and related analysis, the physical parameters were determined.
Beijing: Science Press (2002)
Beijing: Science Press (2002)
Journal of Disaster Prevention and Mitigation Engineering, Vol. 28 (2008), p. 31 [5] Xu D H.  
China Civil Engineering Journal, Vol. 40 (2007), p. 14

Loboda2, Lihua Zhang3, Dong Su3, Kim Kisslinger3 and Eric Stach3 1Dept. of Materials Science and Engineering, Stony Brook University, Stony Brook, NY, 11790, USA 2Dow Corning Compound Semiconductor Solutions, Midland, MI, 48686, USA 3Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA amichael.dudley@stonybrook.edu Keywords: stacking faults, polytype, macrostep, HRTEM, x-ray topography Abstract.
In 4H-SiC, like other polytypes of this material, low stacking fault (SF) energies can lead to a tendency to form SFs on the basal plane.
HRTEM studies were carried out at the Center for Functional Nanomaterials, Brookhaven National Laboratory (DOE Office of Basic Energy Sciences Contract no.
Glass, et al., Journal of Crystal Growth, vol. 211, pp.325-332 (2000) [18] M.
Syvajarvi, et al., Journal of Crystal Growth, vol. 217, pp.255-262 (2000) [20] E.Y.

Experimental Details In this work, 4 inch (100mm diameter) p-type silicon wafer grown by Czochralski (CZ) method is used as a starting material.
Adam, “DI Water Electrical Characteristics Monitoring Using in House Fabricated Polysilicon Nanoelectrode Based Transducer,” International Journal of Enhanced Research in Science Technology & Engineering, vol. 1, no. 1, pp. 1–6, 2012
Chen, Nanostructured Materials for Electrochemical Biosensors.
Nova Science Publishers, 2009
Elsevier Science, 1999.

Fatigue life of CrMoV steel after long term service MROZIŃSKI Stanisław a, GOLAŃSKI Grzegorz b, SŁANIA Jacek c a University of Technology and Life Sciences in Bydgoszcz, Faculty of Mechanical Engineering, Kaliskiego 7, 85-789 Bydgoszcz, email: stmpkm@utp.edu.pl b Czestochowa University of Technology, Institute of Materials Engineering, Armii Krajowej 19, 42- 200 Częstochowa,email:grisza@wip.pcz.pl c Czestochowa University of Technology, Welding Department, Armii Krajowej 19c, 42- 200 Częstochowa, email: jacek_slania@poczta.onet.pl Keywords: low alloy CrMoV steel, microstructure, low cycle fatigue Abstract.
Research work financed with the Ministry of Science and Higher Education funds for science in the years 2011 – 2013, as a research project no. 1215/B/T02/2011/40.
Dobrzański: Materials science interpretation of the life of steels for power plants, Open Access Library, 3, 2011 [2] A.
[5] Landgraf R.W., Morrow J., Endo T.: J. of Materials, Vol. 4, 1969, p. 1621
[6] Mroziński S., Lipski A.: Method for processing of the results of low-cycle fatigue tests, Materials Sciense, Volume 48, Issue 1, 2012, p. 83-88 [7] Mroziński S.: Journal of Theoretical and Applied Mechanics 49, 1, 2011, p. 83

Biosynthesis of Adenine Arabinoside by Whole Cells of Enterobacter aerogenes HXY2222 Kui Feng1, a, Li Cui2, b 1,2School of Chemistry Engineering & Material, Dalian Polytechnic University, Dalian 116034, China alove1986feng@126. com, bcui_li@126.com Keywords: Adenine Arabinoside, Enterobacter aerogenes HXY2222, Biosynthesis, Arabinofuranosyluracil, Adenine.
Materials and Methods Materials AraU, adenine were purchased from sigma.
Microorganisms and cultures Enterobacter aerogenes HXY2222 were obtained from school of life sciences, tsinghua university.
Acknowledgements This work was supported by the school of life sciences, tsinghua university financially and technically.
Chinese Journal of Pharmaceuticals, Vol.41(2010), p. 416-419

Introduction Recently because of composite materials’ advantages of high intensity and high rigidity, they have been used widely in many fields of engineering, such as aeronautical and aerospace industries.
So research of vibration characteristics of composite materials cylindrical shells becomes greatly important.
Computation Results and Analysis The geometrical parameters and material properties of the circular cylindrical shell used in the present research are: , , , , , , ,.
Acknowledgments This work was supported by Science and Technology item of Heilongjiang Provincial Education Department (No.12511086).
Loy, Analysis of rotating laminated cylindrical shells by different thin shell theories Journal of Sound and Vibration. 186(1995), 231-233

Effect of mechanical stresses on coercive force and saturation remanence of ensemble of dual-phase interacting nanoparticles Leonid Afremov1 and Yury Kirienko2,∗ School of Natural Science, Far-Eastern Federal University, Vladivostok, Russia 1 afremovl@mail.dvgu.ru, 2 yury.kirienko@gmail.com, ∗corresponding author Keywords: heterophase particles, mechanical stress, magnetic states, elongated nanoparticles, coatings, interfacial exchange interaction, saturation remanence, maghemite, cobalt.
The field produced by each of these particles on the neighboring can be estimated as Hm ∼ 2IsNa3/R3 = 2cIs, where R - the average distance between particles, c = Na3/R3 - volume concentration of magnetic material in the system.
In the materials for magnetic recording, magnetics with high values of spontaneous magnetization (Is ∼ 350−500 G) is commonly used.
Kirienko, ``Effect of mechanical stresses on the coercive force of the heterophase non-interacting nanoparticles,'' Advanced Materials Research, vol. 472, p. 2199-2202, 2012
Nefedev, ``Distribution function for random interaction fields in disordered magnets: Spin and macrospin glass,'' Journal of Experimental and Theoretical Physics, vol. 93, no. 1, p. 136-142, 2001

The solar-powered aircraft consists of ultralight materials like balsa and paulownia in order to lighten the weights.
Structure design and experiment Selecting material based on loading characteristic on every component of the wing.
FEM modeling principle is that element selecting must conform to geometry of corresponding component, material characteristic, loads passing route, load-bearing manner and boundary restrict condition.
(3) The main reason of the error between the computation and experimental value is material properties.
References [1] ZHANG Ying, FANG You-liang, LI Hui-yun,YAN Hong-xia.Journal of Hebei University (Natural Science Edit ion).Vol.30(2).2010,p.128-132.In Chinese