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The coercivity field here is used to distinguish soft or hard magnetic materials.
Materials with high coercivity indicate that their magnetic properties are not easily losses.
The data obtained is shown in Table 2. it is obtained that the two materials used are in the range of conductivity values of semiconductor materials, in range between 10-8 and 103 Sm-1.
Polyaniline Materials by Emulsion Polymerization Pathway.
Journal of Progress in Polymer Science. 732-736

With the rapid development of new materials, new technologies and new processes, high-performance composite materials have been more and more widely used.
Mechanical Model of Composite Materials Directional Pipe The directional tube of a rocket launcher is composited with epoxy resin and auxiliary materials as the matrix material, and glass fiber and its fabric as the reinforcing material.
Beijing: Science Press. 1990 [4] Li Shunlin, Wang Xingye.
Nanjing University of Science and Technology, 2001 [6] Ren Huiqi.
Journal of Ballistics, 2003, 15(2): 39-42 [8] Shi Dangyong, Li Yuchun.

Synthesis and Characterization of Manganese Oxide/CNTs Composites as Electrochemical Capacitor Electrode Materials Yan Ye1,2,a, Zou Ji-zhao1,2,b, Zeng Xie-rong1,2,c 1College of Materials Science and Engineering , Shenzhen University , Shenzhen 518060 , China 2Shenzhen Key Laboratory of Special Functional Materials , Shenzhen 518060 , China ayanye19881215@126.com; bZoujizhao2003@163.com (corresponding author); cZengxier@szu.edu.cn (corresponding author) Keywords: Carbon nanotubes; Manganese oxide; Microwave heating; Supercapacitor Abstract: Manganese oxide (MnO2)/Carbon nanotubes(CNTs) composites were prepared by a home-made microwave heating equipment.
Faradaic electrochemical reactions occurring on the surface of the second kind of capacitor materials.
Soavi, Conducting polymers as electrode materials in supercapacitors. 2002
Journal of Power Sources, 2006. 157(1): p. 11-27
Journal of Power Sources, 2008. 178(1): p. 483-489

Among Composite materials, Natural fiber reinforced polymer finds rapid development in Industrial applications and many areas of research.
Introduction Composite materials do emerge as the promising source to quench the thirst of the current engineering world in various applications.
Composite materials are mostly preferred for their low density and high strength.
Some Structural aspects of Sisal fibers, Journal of Applied Polymer Science, New York, 20 (1976) 2921-2940 [12] Kulkarni, A.G, Satyanarayana.K, Sukumaran.K, Rohatgi.P.K., Mechanical behaviour of Coir fibers under tensile load, Journal of Material Science, London, (1981) 905-914 [13] Mattoso, L.H.C, Ferreira F.C, Curvelo A.S, Sisal fiber: Morphology and Applications in Polymer composites.Lignocellulosic-plastics composites, USP/UNESP, (1997) 21-51 [14] McLaughlin E.C, The Strength of Bagasse fiber Reinforced composites, Journal of Material Science, London, 15 (1980) 886-90 [15] Mukherjee K.G, Satyanarayana K.G, Structure and properties of some Vegetable fibers.
Part 1: Sisal fiber, Journal of Material Science, London, 19 (1984) 3925-3934 [16] Karthikeyan A, Balamurugan K, Effect of Alkali treatment and fiber length on Impact behaviour of coir fiber reinforced epoxy composites, Journal of Scientific & Industrial research, 71 (2012) 627-631 [17] Chandramohan D, Marimuthu K, Tensile and Hardness tests on Natural fiber reinforced polymer composite material, International Journal of advanced Engineering science and technologies, 6 (2011) 97-104 [18] Sumaila M, Amber I, Bawa M, Effect of Fiber length on the physical & Mechanical properties of random oriented non woven short Banana (Musa Balbisiana) fiber/ epoxy composite, Asian journal of National & applied Science, 2 (2013) ISSN: 2186-8476 [19] N.Venkateshwaran, A.Elaya Perumal, A Alavudeen, M Thiruchidambalam, Mechanical & Water Absorption Behaviour of Banana/Sisal reinforced hybrid composites, Materials & Design; 32 (2011) 4017-4021.

Introduction Properties of Advanced LDPE Materials.
Development on filler LDPE materials and its role.
Nano CaCO3 to Enhance Toughening HDPE Composite Materials.
Journal of Shandong University of Science and Technology, 2010, (2):25-29
Journal of Materials Processing Technology, 2009 (5):79-82 [12] J.Z Zhang , P.Jin, H.L Ren.

Many sheet materials do not exhibit constant properties over the sheet thickness.
Lenard, Metal Forming Science and Practice, Elsevier, 2002
Davies, Materials for automobile bodies, second ed., Elsevier, 2012
Gatenby, Lüders elongation in AI-Mg alloy AA5182, Materials Science and Technology 13 (1997) 660-666
Tirupataiah, The hardness-flow stress correlation in metallic materials, Bull.

Development of a New Powder/Solid Composite for Biomimic Implant Materials by Electron-Beam Additive Manufacturing Takayoshi Nakano1, Hidetsugu Fukuda2, Hiroyuki Takahashi3 1Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan 2Electronic Mechanical Engineering Department, National Institute of Technology Yuge College,1000, Shimoyuge, Yuge, Kamijima, Ochi, Ehime 794-2593, Japan 3Teijin Nakashima Medical Co.
In conclusion, novel powder/solid materials comprising solid cubic parts and functionalized powder particles between them were successfully developed, which could be useful in biomedical and industrial applications.
Such materials should be able to suppress stress shielding to prevent resultant bone resorption and degradation of anisotropic bone quality [2, 3], which reduce the mechanical integrity of bone tissue.
In this article, new materials composed of solid and powder parts that exhibit bone-mimic one-dimensional (1D) anisotropic mechanical properties are proposed, similar to long bones, as materials for artificial joints and bone plates.
Materials and Methods The raw material used was gas-atomized Ti-6Al-4V ELI powder comprising spherical particles with a mean diameter of approximately 80 μm, as shown in Fig. 1.

Activation energy of pure and impregnated lignocellulosic materials obtained by isothermal method Chrebet Tomas1,a, Martinka Jozef2,b Balog Karol3,c and Turnova Zuzana 4,d 1,2,3,4 Institute of Safety and Enfironmental Engineering, Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Paulinska 16, 91724 Trnava, Slovak Republic atomas.chrebet@stuba.sk, bjozef.martinka@stuba.sk, ckarol.balog@stuba.sk, dzuzana.turnova@stuba.sk Keywords: activation energy, lignocellulosic materials, isothermal method, fire retardants Abstract.
Degradation of lignocellulosic materials was performed at various temperatures and various air-flow speeds.
Used materials We selected a sample of spruce wood as the currently used material for constructions.
Balog: Study of flaming and nonflaming combustion process of cellulosic materials.
Nishimoto: Thermogravimetry of wood treated with water-insoluble retardants and a proposal for development of wood materials.

The compositions of materials are shown in Table 1.
Castro: Materials Science and Engineering A, 216(1996), p. 185 [4] L.H.
Upadhyaya: Materials Science and Engineering A, 279(2000), p. 275 [6] M.L.
Liu: Materials Science and Engineering A, 433(2006), p. 39 [7] M.L.
Liu: Materials Science and Engineering A, 486(2008), p. 167

Effects of surface density on the material It can be seen from Figure 2, in the case of the same thickness, in a low-frequency sound, the absorption curves of the three materials are almost coincidence, indicating that the absorption capacity of the three kinds of materials to low-frequency sound waves is basically the same and in the low-frequency sound absorption sequel is poorer, which is consistent with the law that the absorption of porous materials to low-frequency sound is poor, and justify the effect of changing the size of material surface bulk density on low-frequency sound absorption performance is not obvious.
From the above analysis we can see, increase in material density can increase the absorption properties of materials, but its effect on low frequency sound absorption is not obvious, it can primarily improve the absorption capacity of materials in the section of high-frequency sound.
Such as: this article only conducts three kinds of combinations of different density material, in the future we can combine with more different materials of different density in different ways, in order to identify the best combination ratio.
References [1] Pele C E, Nonwovens Make Themselves at Home, NonwovensIndustry,2000,(2),3 [2] Youn Eung Lee and Chang Whan Joo, Sound Absorption Properties Of Recycled Polyester Fibrous Assembly Absorbers, AUTEX Research Journal,3(2), 2003 [3] T.
Adachi, The Development Of Sound Absorbing Materials Using Natural Bamboo Fibers, High Performance Structure And Composites Book, WIT Press 2002 [4] Kannan Allampalayam Jayaraman，Acoustical Absorptive Properties of Nonwovens，A thesis submitted to The Graduate Faculty of North Carolina State University in partial fulfillment of the requirements for the Degree of Master of Science，2005 [5] Kyoichi Watanabe, Yoshiaki Minemura, Kouichi Nemoto and Hiroshi Sugawara, Development Of High Performance All Polyester Sound Absorbing Materials, JSAE Review 20, 1999, 357--362显示对应的拉丁字符的拼音   字典 1.