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The building of course and learning resources of distance education can never be simple moving of teaching materials, online TV, or multi-media, instead, a whole set of new teaching models conforming to network culture and rules of education must be created.
Hence, the high integration of teaching materials and resources should be emphasized, especially remote and online study assistance.
[2] Zhang Xiaolin, "Towards Knowledge Services: Seeking Development Opportunities for Library and Information Services in the 21st Century", Journal of the Library Science in China, Beijing, Vol.26, No.5, pp.32-37, October 2000
[3] Jing Yhongchang, "On Knowledge Service and Information Services", Journal of Information Science, Beijing, Vol.20, No.5, pp.572-578, October 2001

Moving scale and fixed scale of linear time grating sensor are made from the same metal materials whose thermal expansion coefficient equals that of metal shell of measured objects (such as machine tool).
References [1] Peng Donglin, Liu Chengkang, Tan Weimin, “Study on the Theory of Time-space Coordinate Transformation and the Time Grating Displacement Sensor”,Chinese Journal of Science Instrument, Vol. 21, No. 4, pp. 338-342,2000
“Study on the Time Grating Displacement Sensor of the Field Type”, Chinese Journal of Science Instrument, Vol. 24, No. 3, pp. 321-323,2003
“Comparison Between the Principle of the New Precision Displacement Measurement Method Based on Time Space Coordinate Transformation and Traditional Method”, Chinese Journal of Science Instrument, Vol. 27, No. 4, pp.423-426,2006
“Predictive Measurement Method for Time Grating Displacement Sensor”, Measurement Technology and Intelligent Instruments Ⅷ: Key Engineering Materials, Vol. 381-382pp. 403-406,2008

Metallurgical and Materials Transaction A：Physical Metallurgy and Materials Science，Vol.30(1999),p3191-3199 [2] Jones R.H., Baer D.R.Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science，Vol.32(2001),p1699-1711 [3] Searies J.L.
Materials Science Forum，Vol.396-402(2002),p1437-1442 [4] Miljana Popovic, Endre Romhanji.Journal of Materials Processing Technology，Vol. 125-126 (2002),p275-280 [5] Jones R.H,Vetrano J.S,Windisch Jr.Corrosion，Vol.60(2004),p1144-1154 [6] XU Gang, CAO Chu-nan, LIN Hai-chao.Corrosion Science and Protection Technology, Vol.10（1998）,p321-326 [7] Burleigh T.D.Corrosion, Vol47(1991),p89—98 [8] ZHU Wu-yang.

Pashkov, Tribotechnical properties lead bronzes,  Applied Mechanics and Materials. 379 (2013) 87 - 90  [3] N.V.
Pashkov, Bronze sealing rings defects and ways of its elimination,  Applied Mechanics and Materials. 379 (2013) 82 - 86  [4] T.V.
Martyushev, Creation of ceramic nanocomposite material on the basis of ZrO2-Y2O3-Al2O3 with improved operational properties of the working surface,  Applied Mechanics and Materials. 379 (2013) 77 - 81  [5] S.N.
Tomchik, Simulation of active shielding gas impact on heat distribution in the weld zone, Materials Science Forum. 762 (2013) 717-721 [8] E.N.
Agrenich, Computer simulation of thermo-mechanical processes at fusion welding of alloyed steels, Materials Science Forum. 575-578 (2008) 833-836 [10] A.A.

Nagl and et al.: J. of Materials Processing Technology, Vols. 143-144 (2003), pp.148-152
Malkin: Transactions of the ASME, Journal of Manufacturing Science and Engineering, 1999, 121 (4), pp.623-631
Jiao: Key Engineering Materials, Vols. 258-259 (2004), pp.239-243
Zhu: Materials Science Forum, Vols. 532-533 (2006), pp.532-535
Wu and et al.: Key Engineering Materials, Vol. 320-321 (2006), pp.214.

P., "Initial permeability studies on high density Cu-Mg-Zn ferrites", Journal of Magnetism and Magnetic Materials, Vol. 173, pp. 51-58, 1997
[4] Jiles, D., Introduction to Magnetism and Magnetic Materials, Chapman & Hall, London, Ch. 3, pp. 47-67,1995
Low and Sale, Frank R., "Electromagnetic properties of gel derived NiCuZn ferrites", Journal of Magnetism and Magnetic Materials, Vol. 246, Issues 1-2, pp. 30-35, 2002
[9] Rezlescu, N., Rezlescu, E., Popa, P.D., Craus, M.L. and Rezlescu L., "Copper ions influence on the physical properties of a magnesium-zinc ferrite", Journal of Magnetism and Magnetic Materials, Vol. 182, pp. 199-206, 1998
Low, "The development and analysis of property-composition diagrams on gel-derived stoichiometric NiCuZn ferrites", Journal of Magnetism and Magnetic Materials, vol. 256, Issues 1-3, pp. 221-226, 2003

Science Press. 2010
Studies on the Mechanism of laser induced material breakdown and the formation of plasma.
Nanjing University of Science & Technology. 2009.06
Chinese Journal of Lasers.
Journal of Atomic and Molecular Physics.

The Ultrasonic Method is usable for metallic, non-metallic and composite materials.
The advantage: wave is propagated throught large layers in the materials, where the signals with lower frequencies are attenuated quickly.
The velocity of the wave propagation is different for various types of the materials.
Chen, et al., Effect of Void Ratio of Concrete on Evaluation of P-wave Velocity by Impact-echo Method, in: International Journal of Applied Science and Engineering, Vol 6, No. 3, 2009, pp. 199-205
Leitner, Non-destructive testing of materials – ultrasonic control, Slovgas, Slovak Gass and Coal-Oil Alliance, Vol. 1, 2006, pp. 15-20.

Practical handbook of material flow analysis (CRC Press, U.S. 2004). ,[[] L.
Yamada, I.Daigo, et al:Materials Transactions,Vol. 48 (2007, p. 2518. ], wood[[] S.
E.Graedel:Journal of Clean Production, Vol. 15 (2007), p. 849. ,[] H.
F.Nie: Journal of South China University of Technology (Nature Science Edition),Vol. 40 (2012), p. 142.
Y.Li, et al:Environmental Science,Vol. 29 (2008), p. 607.

It is normally used as a soup or stews flavouring materials and constitutes an essential ingredient in preparation of local soup or stew [3].
Materials and methods African locust bean samples were taken from the Kings market, in Ado Ekiti metropolis, Ekiti State, Nigeria.
Journal of plant nutrition, pp13-18, 32
Journal of trends in food science and technology, vol. 3.pp12, 140-144
Journal of plant foods, vol.3 pp 66-69