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Materials and methods collections of samples Samples were obtained by centrifuge 10 g of wet sludge, which was collected from a nitrosification biofilm reactor in our laboratory in 50 ml sterile plastic test tubes.
Zhenhuan, Journal of Zhejiang University (Science Edition).

Therefore, the diameter of the rotation-symmetric workpiece is chosen smaller than the tool diameter, so that the total material of the workpiece is drilled off and no hole or burr is created (Fig. 1).
Kronenberg, Machining Science and Application, Pergamon Press, Oxford, 1966 [3] G.
Pantke, The Dependency of Material Properties and Process Conditions on the Cutting Temperature when Drilling Polymers, Production Engineering – Research and Development (2007) 381-387 [6] U.
Ni, The Location of the Maximum Temperature on the Cutting Edge of a Drill, International Journal of Machine Tools & Manufacturing 46 (2005) 901-907 [11] G.

The UV Index and exposure time measured by UVM-30 photodetector Hao Luo, Kaixiao Zhang*, HaiYan Xie, Hua Zou, and WeiHua Zhu College of Science, College of Mechanics & Materials Hohai University Nanjing, China *E-mail:kxzhang@126.com Keywords：UV Index; UVM-30; Erythemal; ultraviolet radiation Abstract.
References [1] Uwe Feister, Gudrun Laschewski, Rolf-Dieter Grewe，UV index forecasts and measurements of health-effective radiation，Journal of Photochemistry and Photobiology B: Biology 102 (2011) 55–68 [2] F.

Both elastic and inelastic material responses are considered in this analysis.
Definition of modification factor In elastic range, the internal forces are usually designer’s concern; when material yields, the performance of the structure is often reflected by deformation-related indices.
Acknowledgements This study was supported by the National Nature Science Foundation of China under grants 50708052 and 90815006.
Journal of Structural Engineering, ASCE, April 2002, 526-533 [13] Pacific Earthquake Engineering Research Center (PEER). http://peer.berkeley.edu.

Acknowledgments:Thanks are given for the Chinese Committee of National Basic Research Program (973 Program: 201CD610706), the Natural Science Foundation Committee of Jiangsu Province, China (2007191SB90098), Nanjing Normal University Committee of Scientific and Research Start-up Fund for the Returned Oversea Professors (2006191XLH0132) and the Germany Committee of DAAD for the fund support.
Synthesis of polycarboxylate-type superplasticizer and its effects on the performance of cement-based materials, Journal of Chinese Ceramic Society (in Chinese) 36(7) (2008) 884-889

TNL-500 CNC lathe (made in Korea) is selected as the test tool, 40Cr alloy steel whose chemical composition shown in Table 1 is used as try cutting specimen materials, because Chromium steel has good mechanical properties and impact toughness, grade YT14, model 31305A carbide turning tools is fit to cut and no cutting fluid is used to cool.
The Design and Study of Tool Wear Monitoring [J].Journal of Harbin Institute of Technology(natural sciences edition) ,2003,(01): 76-80

Sun JinWen in University of Shanghai for Science and Technology set up an elastic support structure, spindle driving system and spindle model based on ADAMS, obtained system critical rotating velocity from amplitude frequency curve [2].
Finite element model of spindle system Model Simplification According to the actual structure of the spindle system, simplified the model as follows: 1) Spring simulated using unit Combin14. 2) Deep groove ball bearings were simplified into six springs with great stiffness, just considered their radial force. 3) Ignore shafts material damping, and assumed that shafts were isotropic. 4) Spindle system is consisted of the rotary drum, drum cover, disc, feed tube and partition, the location of center of mass can be got through calculating.
Unit settings and meshing The material of rotary drum is 2Cr13, in room temperature, its modulus of elasticity E=2.06×1011N/m2, poisson's ratio μ=0.3, density ρ=7750kg/m3.
Chinese Journal of Computational Mechanics, no.6, pp.711-714, 2003.

Materials and methods 2.1 The experimental set-ups A schematic diagram of the experimental apparatus was shown in Figure 1.
Advances in Environmental Science, 7(6)(1999)58-65(Chinese)
Journal of Environment and Health, 22(6)(2005)480-483(Chinese)

Currently, this material presents the highest performance available in important properties such as conductivity and transmittance, as well as its excellent environmental stability, reproducibility, and surface morphology.
By adding Sn in the In2O3 material the carrier concentration increases.
Roisnel: Journal of Solid State Chemistry., Vol. 135 (1998), p. 140
[7] H.Angermann: Applied Surface Science, Vol. 254 (2008), p. 8067.

H-1084 Budapest, Hungary 3Research Institute for Technical Physics and Materials Science, P.O.B. 49 H-1525 Budapest, Hungary ae-mail: kucsera.peter@kvk.uni-obuda.hu, be-mail: sandor.tamas@kvk.uni-obuda.hu, ce-mail: tenyi.gusztav@kvk.uni-obuda.hu, de-mail: csutiman@gmail.com, ee-mail: gergo.batori@gmail.com, fe-mail: kupas.deak@kvk.uni-obuda.hu, ge-mail: reti@mfa.kfki.hu, he-mail: urmos.antal@phd.uni-obuda.hu, *e-mail: nemcsics.akos@kvk.uni-obuda.hu Keywords: MBE, RHEED, GaAs, droplet-epitaxy, nano-structures Abstract.
idart=180 [9] Kudo, Takuya and Inoue, Tomoya and Kita, Takashi and Wada, Osamu, „Real time analysis of self-assembled InAs/GaAs quantum dot growth by probing reflection high-energy electron diffraction chevron image”, Journal of Applied Physics, 104, 074305 (2008), DOI:http://dx.doi.org/10.1063/1.2987469 [10] Á.