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The Research on the Adsorbing Behavior of Chitosan for Heavy Metal Ions Xiao-ling Liao1, Yan Liu2, Qiu-hong Huang1, Wen-feng Xu1* 1Institute of Biomaterials and living cell imaging technique, School of Metallurgy and Materials Engineering,ChongQing University of science & technology, Chongqing 401331,China 2School of Materials and Chemical Engineering,ChongQing University of Arts and science, Chongqing 402160,China email: zxc_228@163.com Keywords: Chitosan, N,O-carboxymethyl chitosan, Co2+, Adsorbing ratio Abstract.
Materials and Methods Experiment materials, instruments and reagents.
Main reagents and experimental materials: Chitosan, Nitric acid(AR), Chloroactic acid(AR), Cobalt chloride(AR), Nitroso R salt(AR), Sodium acetate(AR).
Dou: Journal of Northeastern University, Vol. 27 (2006) No.2, p.131-138.
Wang: Journal of Wuhan Urban Construction Institute, Vol. 22 (2005) No.4, p.162-165.

When the solid material distribution in Figure 2(a) is imported to PATRAN, the 1st order frequency computed by NASTRAN is 61.61 (Hz), whis is slightly larger than that (60.76 Hz) with void and soft materials for Figure 2(a).
That is, soft materials have little influence on frequency of this structure.
Therefore, soft materials can significantly increase fundamental frequency of plate vibrations.
Void and soft materials have little effect on frequency of in-plane vibration but affect out-of-plane vibrations of plate structures considerably.
AIAA Journal, 2012. 50(6): 1328-1338

Diethylhexyl phthalate (DEHP) is a kind of plasticizers which is generally used in plastics packaging materials to provide the flexibility.
Introduction Due to the low price, high transparency, good sealing, flexibility and convenient usage, PVC films have been established for decade years as fresh food packaging materials.
Watanabe: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 4(2003) , pp.1030-1236
Moraes: Journal of Applied Polymer Science, Vol. 111(2009), pp. 281-290
Nascente: Journal of Applied Polymer Science, Vol. 115(2010), pp. 2728-2733

Kim, Journal of Nuclear Materials, 373 (2008) 429-432
Seshacharyulu, International Materials Reviews, 43 (1998) 243
Saibaba, Procedia Materials Science, 6 (2014) 188-193
Saibaba, Procedia Materials Science, 6 (2014) 278-283
Kashyap, Journal of Materials Processing Technology, 166 (2005) 268-278.

While, nano-silica, used as biological carrier materials, has advantages of large surface area, better biocompatibility, and low cost compared with porous stainless steel, ceramics and other porous materials [12].
Materials and Methods Materials.
The proportion of different materials in fermentation of EM active calcium was presented in Table 1.
Journal of Anhui Agricultural Science, 2010, 38(5): 2496-2497.
Advanced Materials Research, 610, pp. 138-143, 2013.

Using methane as carbon source, reaction temperature in the range of 850-1000˚C, suitable catalyst materials and flow conditions, it is possible to grow high quality CNTs by a simple CVD process [10, 11, 12].
Carbon dioxide is an electron donor gas and its adsorption resulted in the injection of electrons to the carbon nanotubes and reduced the number of holes in the materials.
Kertesz: Carbon nanotube actuators, Science Vol. 284(1999), p. 1340-1344
[8] Qin, L.C.: CVD synthesis of carbon nanotubes, Journal of Materials Science Letters Vol. 16(1997), p. 457-459
Li: Fabrication and growth mechanism of carbon nanotubes by catalytic chemical vapor deposition, Materials Letters Vol. 60(2006), p. 159-163

Consequently, Mg, Zn and Ca elements are considered as the most suitable system to design novel Mg-based implant materials [6].
Lu, Effects of calcium on texture and mechanical properties of hot-extruded Mg–Zn–Ca alloys, Materials Science and Engineering: A. 539 (2012) 56-60
Jiao, Preparation and characterization of a new biomedical Mg–Zn–Ca alloy, Materials & Design. 34 (2012) 58-64
Zhang, Effect of backward extrusion on microstructure and mechanical properties of Mg-Gd based alloy, Materials Science and Engineering: A. 532 (2012) 443-448
Zhang, Effects of backward extrusion on mechanical and degradation properties of Mg–Zn biomaterial, Journal of the mechanical behavior of biomedical materials. 10 (2012) 128-137.

Many researches have been done on difficult-to-cut materials grinding.
Chattopadhyay: Materials and Manufacturing Processes Vol. 23 (2008), pp: 224–227
Aspinwall: Journal of Materials Processing Technology Vol. 118 (2001), pp: 22-28
Mi: Advanced Materials Research Vols. 76-78 (2009), pp: 55-60
Morgan: International Journal of Machine Tools & Manufacture Vol. 50 (2010), pp: 977–985.

The double cantilever beam has been widely used in the past and has proved one of the most popular designs for measuring the growth rate of stress corrosion cracks in materials.
Material All tests were carried out on aluminium alloy 7075(W) in the form of 18mm thick plates.
Letter ‘W’ refers to material that has been solution treated, water quenched and naturally aged at a room temperature.
The precipitates may be either anodic or cathodic to the surrounding material, depending on the alloy composition.
I Dickson, “A Comparison of SCC Velocity Measurement under Conditions of Constant Load and Constant Displacement” Corrosion Science, Vol. 24, No. 1, 1984, pp.1-12

Determination of Lead Traces by Stripping Voltammetry using Ti(N,C) working electrodes Marta Ziemnicka1, a, Bogusław Baś2,b , Mateusz Jeż3,c and Ludosław Stobierski 1,2,3,4 Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. 
The metallic titanium, commercial powder of titanium carbide and high purity technical nitrogen were applied as a raw materials.
In order to obtain high densification of materials, the sintering process were carried out by means hot pressing (HP) method.
Vuki: Microchemical Journal 62, 121-127 (1999)
Latini: International Journal of Hydrogen Energy 32, 2007, 4692-4701 [11] B.