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In Fig.3, the master rack is drivenby the work-piece, the plus material deviation is defined as positive, while the minus material deviation is defined as negative.The relationship between the displacement increment along left & right meshing line(,) and the radial displacement(),tangential displacement() is as follows: （1） 3.2 Measuring Principle The measuring principle of high-speed inspection in workshops of gears pitch deviations based on the double-flank gear rolling test as follows: The displacement of rack probe in radial & tangential direction(, ) is measured when rack probe mesh with left & right flank of the gear to be inspected.
Acknowledgements This research is supported by the Natural Science Foundation of China grant Nos. 51105007.
References [1] Shi Zhaoyao, FeiYetai and XieHuakun, "100 years of gear measurement technology¾review & prospect", Engineering Science, 5(9), 13-17(2003)
Annals of the CIRP 1984,33(1):363~368 [9] Shi Zhaoyao, Tang Jie, Wei Hualiang, et al, “Gear In-line Measuring Machine Based on Double-flank Gear Rolling Test with many Degrees of Freedom”, Chinese Journal of Scientific Instrument, 2009, Vol.30, No.2, pp.303-307
Shanghai Science & Tech.

However, the naked Fe3O4 NPs were easily conglobated and oxidized in air, several methods have been designed to form core-shell structure using inorganic materials or polymers including metals and oxides[2-4].
Gold nanoparticles (Au NPs) can be used as surface coating materials due to its unique biocompatibility, good performance of electrocatalytic, high chemical stability[5].
Synthesis and characterization of Fe3O4@ZnS and Fe3O4@Au@ZnS core-shell nanoparticles, Applied Surface Science. 288 (2014) 180-192
Facile synthesis of bifunctional Fe3O4/Au nanocomposite and their application in catalytic reduction of 4-nitrophenol, Materials Research Bulletin. 57 (2014) 293-299
Nucleic acid aptamers as high affinity ligands in biotechnology and biosensorics, Journal of pharmaceutical and biomedical analysis. 81 (2013) 210-217

Experimental Materials and sample preparation.
[4] Lu L, Li X, Gao J: Journal of Applied Polymer Science, 2012, 125(1): 19-23
[9] Lu Y, Partridge C, Meyyappan M, et al: Journal of Electro-analytical Chemistry, 2006, 593(1): 105-110
[10] Destefanis G, Barge M T, Brugiapaglia A, et al: Meat Science, 2000, 56(3): 255-259
[11] Khan Z A, Kamaruddin S, Siddiquee A N: Materials & Design, 2010, 31(6): 2925-2931

Experimental materials GQSS.
Chinese journal of rock mechanics and engineering Vol. 13(1994), p. 240-246, in Chinese
Mandelbort: Science Vol. 155(1967), p. 636-638
Journal of Yancheng institute of technology Vol.23(2010), p. 1-5, in Chinese
(China building materials industry press, Bei Jing 2000), in Chinese.

References [1] Peng Wang, Xuegong Yu, Peng Chen, Xiaoqiang Li, Deren Yang, Xue Chen, and Zhenfei Huang, Solar Energy Materials and Solar Cells In Press, Corrected Proof
Que, Materials Science in Semiconductor Processing 9 (1-3), 110 (2006)
Arnberg, Journal of Crystal Growth 325 (1), 1 (2011)
Lent, Journal of Crystal Growth 299 (1), 227 (2007)
Ovrelid, Solar Energy Materials and Solar Cells 95 (2), 529 (2011)

As a new technology, terahertz time-domain spectroscopy (THz-TDS) offers advantages of no risk of radiation, high transparency for nonpolar materials, strong spectral fingerprints for crystalline materials and polar molecules, and high sensitivity in both time and frequency domains.
Acknowledgments This work is supported in part by the National Natural Science Foundation of China under Contract No. 61265005, and in part by the Guangxi Experiment Center of Information Science, Guilin University of Electronic Technology under Contract No. 20130101.
Journal of Chinese Pharmaceutical Sciences, 2005, 14(2): 110
Nature Materials, 2002, 1(1): 26
International Journal of Pharmaceutics, 2006, 334(1-2): 78

Historical monuments are most often built from materials (plaster, walls, rocks, etc.), which have a porous structure.
Although the objects are constructed of different materials, the nature of the porous structure is common.
Moore, Unsaturatedwater flow within porous materials observed by NMR imaging, Nature 281 (1979) 56–57
Testing a novel technique for measuring moisture in ruined walls, Journal of Cultural Heritage 7 (2006) 257–263
Kubičár, Sensor for Monitoring the Moisture in Porous Materials, Int J Thermophys 34 (2013) 1918–1929

Nugroho1,d 1Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl.
Among magnetic materials, ferrites have significant attention due to their potential application, such as magnetic recording, sensors, radar-absorbent materials, catalysts, and energy-storage devices.
This understanding can be part of the technological importance of magnetic materials.
Experiments Materials.
The iron (III) oxide (Fe2O3, Johnson Matthey Electronics, 98%) and manganese oxide (MnO2, Merck, 99%) were used as starting materials.

The nanoscale materials have a large surface area for a given volume.
Nanostructure of titania is one of the great interest crystalline material.
The composite obtained show that their production as successfully achieved yielding materials with particles well dispersed within the PMMA matrices.
Skafidas, "Permittivity properties of thermally treated TiO2," Materials Letters, vol. 58, pp. 1502– 1507, 2004
Nedeljković, "Influence of surface modified TiO2 nanoparticles by gallates on the properties of PMMA/TiO2 nanocomposites," European Polymer Journal, vol. 48, pp. 1385-1393, 2012

Influence of Carbon Doping on Microstructure and Tribological Properties of CrN Coating Pengfei Hu1 Guojie Yin2 Sikai Zhou3 1Department of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China 2Department of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang 471023, China 3Department of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China Keywords: CrN coating, Carbon doping, Magnetron sputtering, Tribological property Abstract: The influence of carbon doping on tribological properties of CrCN Coating was studied through preparation of coatings deposited on single crystal silicon and M2 high speed steel(HSS) substrate using closed-field unbalanced magnetron sputtering ion plating technique.
Graphite is a commonly used solid lubricant material with low friction coefficient, the graphite doping can significantly reduce the friction coefficient of hard coatings[5].
Transactions of Materials and Heattreatment, 2004(10):858-860
Journal of the European Ceramic Society,1997,17(15-16):1929-1932
Applied Surface Science, 2009,255(21):8788-8793 [6] G.G Fuentes, M.J.