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Introduction Superabsorbent polymer (SAP) is an important class of cross-linked polymeric materials that are able to absorb large amount of water.
Materials and methods 2.1 Materials and reagents Starch, acrylamide, N, N'-methylenebisacrylamide, potassium persulfate, MB, and methanol were generally reagent grade from commercial sources.
Tripathy: Journal of Physical Sciences, Vol. 14 (2010), p. 199-205
Ferrero: Journal of Hazardous Materials, Vol. 142 (2007), p. 144-152
Zhu: Journal of Hazardous Materials, Vol. 136 (2006), p. 946-952

Journal of Wuhan University of Technology (Materials Science Edition), 2010, 25(5): 838-844 [3]Xianwei Ma, Huxing Chen, Peiming Wang.
Journal of Wuhan University of Technology (Materials Science Edition), 2009, 24(5):830-833 [4]Xianwei Ma, HuXing Chen.
Materials Characterization, 60(2009),749 -755
Beijing: China Building Materials Academy.2005.
Revista Romana de Material-Romanian Journal of Materials, 38(2008), 193-202

Experiment Experimental materials.
References [1] Youngsuk Kima, Youngjin Son, Study on Wrinkling Limit Diagram of Anisotropic Sheet Metals, Journal of Materials Processing Technology. 97(2000)88-94
[2] M.Kawka, L.Olejnik, A.Rosochowski, H.Sunaga, A.Makinouchi, Simulation of wrinkling in sheet metal forming, Journal of Materials Processing Technology. 109(2001)283-289
Sakamoto, Evaluation of the Surface Defections in Pressed Automobile Panels by an Optical Refection Method, Journal of Materials Processing Technology. 103(2000)280-287
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The effects and mechanism of oxalic acid and citric acid on physiological processes of 2-year-old F. mandshurica seedlings were studied, this study had important significance to improve the productivites of trees, and it also could provide theoretical guidance of industry production. 2 Materials and methods 2.1 Treatment of seedlings The experiment was conducted in Maoershan experimental station of northeast forestry university, 2-year-old F. mandshurica land was choosen as the sample plot.
Acknowledgements The work was supported by National Natural Science Foundation of China (30901145), China Postdoctoral Science Foundation Funded Project (200801277) and the Fundamental Research Funds for the Central Universities (DL12CA01).
[4] Jinfeng Song, Lichen Song, Xiaoyang Cui et.al:Chinese Journal of Soil Science Vol. 39 (2008), p.315-320,in Chinese
[8] Jianyu Liu, Guoxue Li, Limei Ren et.al: Chinese Journal of Soil Science Vol.40 (2009),p. 855-859,in Chinese
[10] Yi Luo, Guojun Xia, Yumei Jiang et.al: Journal of Anhui Agri.

Acknowledgement This research was funded by a grant from Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No.
Sun: The influence of the heating temperature on the yield stress and pour point of waxy crude oils, Journal of Petroleum Science and Engineering, 135 (2015), pp. 476-483 https://doi.org/10.1016/j.petrol.2015.10.010 [3] G.T.
Sastry: Wax formation in oil pipelines: a critical review, International Journal of Multiphase Flow, 37 (2011), pp. 671-694 https://doi.org/10.1016/j.ijmultiphaseflow.2011.02.007 [7] I.K.
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Argyropoulos: Mathematical modelling of solidification and melting: a review, Modelling and Simulation in Materials Science and Engineering, 4 (1996), 4, pp. 371-396 https://doi.org/10.1088/0965-0393/4/4/004 [11] P.I.

Other bio-based materials like polyhydroxyalkanoates (in our case PHBV) could be associated with PLA in order to improve its gas barrier properties and/or its mechanical properties.
One of the most prominent polymers among these materials is poly(lactic acid) (PLA), a biodegradable, thermoplastic, aliphatic polyester derived from renewable resources, such as corn starch (in the U.S.A.) or sugarcanes (in the rest of the world).
In a second step, the thermoformability of both films was studied and the final barrier properties of the materials measured.
Experimental Materials Ingeo 2002D, a Poly(lactic acid) (PLA) from Nature works developed for extrusion and thermoforming was used.
The very short heating time has certainly not led to crystallization of the materials, even if Guinault et al [2] and Lorenzo and al [7] have already shown that increasing crystallinity does not automatically lead to an increase in barrier properties.

Ni-based super-alloy GH4169 that is most widely used in aerospace is one of the most difficult-to-cut materials, which can be machined by Polycrystalline Cubic Boron Nitride (PCBN) tool.
Super-alloy GH4169 is one of the most difficult-to-cut materials, which relative machinability is only 5%-15% of 45 steel and unit cutting force is usually 1-3 times as large as common steel.
Material of the work-piece is super-alloy GH4169 and it can be regarded as elastic-plastic material.
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Grzesik: Journal of Materials Processing Technology, Vol.176 (2006), p. 102 [6] L.

Materials Science and Engineering.
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In addition, the integration of energetic heavy ions as a processing method enhances the materials properties [4].
Ahmad: Characterization of Fe-Cr-Al2O3 Composites Fabricated by Powder Metallurgy Method with Varying Weight Percentage of Alumina, Journal of Physical Science, Vol. 19(1) (2008), pp. 89-95 [2] T.Shikama, S.
Inouye: Ceramics in Nuclear and Alternative Energy Application- Behaviors of Radio Luminescence of Optical Ceramics for Nuclear Applications, Institute of Materials Research, Tohoku University, (2007), p.169 [3] T.
Lakshiminarasappa, Fouran Singh: Photoluminiscence and Raman Studies in Swift Heavy Ion Irradiated Polycrystalline Aluminum Oxide, Bulletin of Materials Science, Indian Academy of Sciences, Vol. 32 (2009), pp. 515-519 [5] M.
Suryanarayana: Mechanical Milling and Alloying, Program of Materials Science, Vol. 46 (2001), pp. 1-184 [7] M.

Biodegradable Mg Strengthened Poly-Lactic Acid Composite through Interfacial Properties Muhammad Shoaib Butt1, a, Jing Bai1, b and Feng Xue1, c 1 School of Materials Science and Engineering, Southeast University, Nanjing 211189, China.
Preparation and degradation of PLA/chitosan composite materials.
Journal of applied polymer science,91(1), 274-277
Advanced Engineering Materials, 8(6), 511-533
Journal of Materials Science & Technology, 29(6), 489-502.