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From the contradiction matrix, we have Principle 40 (Composite Materials) as one of the suggestions: change from uniform to composite (multiple) materials where each material is optimised to a particular functional requirement.
Kutz(ed.): Handbook of Materials Selection (John Wiley & Sons, 2002)
Liu: Industrial Materials (Goodheart-Willcox, 2001)
Slocum: TRIZ Journal, (1999)
Hu: Materials Science Forum, Vol.471-472 (2004), pp.613-619

Polyurethane foam materials are widely used as cores in sandwich composites, for packing and cushioning.
Carlsson: Journal of Sandwich Structures and Materials, 4 (2002), p. 99
Lolive: Journal of Sandwich Structures and Materials, 4 (2002), p. 219
Negru, Key Engineering Materials, 385387 (2008) p. 205
O'Toole: Journal of Materials Processing Technology, 191 (2007), p. 73

Ariga, Science and Technology of Advanced Materials, 7, (2006), 753–771
Unob, Journal of Hazardous Materials, 154, (2008), 578–587
Gascón, Journal of Hazardous Materials, 163, (2009), 213–221
Morris, Journal of Hazardous Materials, 164, (2009), 229–234
Yi, Journal of Membrane Science, 301, (2007), 118–125.

It is defined as . (1) where ,. (2) with and for BCC and FCC materials, respectively.
However, the Voce type isotropic hardening law tends to generate a saturating curve for stable materials, which may lead to a difficulty in fitting some materials that show a relatively flat stress-strain curve.
International Journal of Mechanical Sciences 2011; 53: 425–435
International Journal of Mechanical Sciences 2003; 45:1687–702
Journal of Manufacturing Science and Engineering-Transactions of the Asme, 2007, 129 (2): 352-359.

Influence of aging process on the crystalline structure and electrochemical properties of LiNi0.8Co0.1Mn0.102 cathode material Liang-bin Liu1,a, Lu Zheng1, Jian-hua Wang1, Yu-zhong Guo1,b 1Faculty of materials science and engineering, Kunming university of science and technology, Kunming 650093, China a1035177835@qq.com , byzguocn62@sina.com(corresponding author) Keywords: Cathode materials;LiNi0.8Co0.1Mn0.102;Co-precipitation processing;Aging time;Cation mixing Abstract.
Kim et al[3] studied nickel-rich ternary materials LiNi0.8Co0.1Mn0.1O2 in depth, and further studied the coating modification of this materials[4].However, its structural stability on charge and discharge keeps a problem, a high cyclic performance of materials retains far reach.
[2] Liu Z L, Yu A S, Lee J Y, Synthesis and Characterization of LiNi1−x−yCoxMnyO2 as the Cathode Materials of Secondary Lithium Batteries , J.
[6] CHEN Wei,LI Xin-hai,WANG Zhi-xing,et al,Influence of feeding rate on performance of LiNi0.8Co0.1Mn0.1O2 cathode materials prepared by co-precipitation,The Chinese Journal of Nonferrous Metals,2012,22(7):1956-1962
[12] YING Jie-Rong, GAO Jian, JIANG Chang-Yin, et al, Research and Development of Preparing Spherical Cathode Materials for Lithium Ion Batteries by Controlled Crystallization Method, Journal of Inorganic Materials,2006,21(2):291-297

Study of XLPE Cable Materials Impurity Detecting Based on CCD Technology TANG Shu-hong1,2 1School of Information and Control Engineering, Weifang University, Weifang, PR China 2School of Information Science and Engineering, Ocean University of China, Qingdao, PR China wfxytang@163.com Keywords: CCD; Contamination particles; Signal processing; Virtual oscilloscope; Edge detection Abstract: In order to improve the present accuracy and speed of XLPE cable materials impurity testing, we set up the impurity testing system using the TCD132D chip and design the hardware driving circuits.
The result shows that this system can measure the size of impurity particles of XLPE cable materials correctly, it also can find out the accurate location and numbers of impurity particles.
“XLPE insulation compound purity evaluation based on contam inant particlemapping technology”, Chinese Journal of Scientific Instrumen, Vol 29, May. 2008, pp. 1035-1039
Bradley, “Automated Surface Roughness Measurement”, The International Journal of Advanced Manufacturing Technology, Vol. 9, No. 16, pp. 668-674, Dec. 2000
The Second International Conference on Information and Computing Science, No. 2, 2009, pp.373-375

This result will play a theoretical guidance for the research of waveguide containing left-handed materials.
It was until the split ring resonator (SRR) medium introduced by Pendry et al. [3] that gave the opportunity to make a material with negative permeability, from which a left-handed medium can be constructed, as Smith et al. demonstrate [4].Since then, “left-handed”materials becomes the hot subject both in experimental and theoretical efforts, as it promises applications on optics, quantum optics, and electromagnetism. [5-8] Compared to traditional medium waveguide, sandwich structured materials made up of usual medium of coat- and substrate- layers and“left-handed”materials of central-layer show peculiar properties in plane guided wave, such as the absence of the fundamental TE modes, mode double degeneracy, and sign varying energy flux.
Acknowledgment This work was financially supported by the Natural Science Foundation of China under Project number 50061001and 50661001; supported by the Science Foundation of Guangxi Province under Project number 0991026, 0832029, and 0639004.
Observation of the inverse Doppler effect in negative-index materials at optical frequencies[J]. 2011, 5(4): 239-245
Journal of Physics: Condensed Matter. 1998, 10(22): 4785

Journal of Materials Processing Technology. 162 (2005) 156-162
Journal of materials processing technology. 209(1) (2009) 462-469 [5] Franzen V, Kwiatkowski L, Neves J, et al.
Journal of Materials Processing Technology. 222 (2015) 287-300
Journal of Materials Processing Technology. 219 (2015) 221-229
Materials & Design. 63 (2014) 20-29.

Materials and Methods 2.1 Materials The Hyparrhenia hirta was harvested from Koedoespoort 456-Jr, Pretoria, Gauteng, South Africa.
South African Journal of Science, 2021. 117(3-4): p. 1-6
Indonesian Journal of Science and Technology, 2019. 4(1): p. 97-118
Journal of Materials Chemistry A, 2020. 8(48): p. 25499-25527
Journal of Applied Polymer Science, 2022. 139(17): p. 52017

This study provided the theoretical basis for cellulose acetate prepared by electrospinning in antimicrobial food packaging materials development.
Until now, many synthetic and natural biopolymers have been electrospun into ultra-thin fibers; however, electrospinning of functional packaging materials is still relatively small[2].
However, the studies of cellulose acetate in the field of packaging materials are still limited.
The technique allowed us to develop novel food packaging materials for the controlled release of the antimicrobial agent[6].
Experimental Materials.