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Functionally graded materials is a new type of heat-resistant composite material in high-temperature environment and have the best application prospects.
Acknowledgements This work was financially supported by the National Natural Science Foundation (10962008) and (51061015), Ningxia Higher School Science and Technology Research Project Foundation and Natural Science Foundation of Ningxia University (ndzr09-11) References [1] Alok Sutradhar.
Boundary element solution of heat conduction problems in multizone bodies of nonlinear materials.
International Journal for Numerical Methods in Engineering, 36(1993), 799~809 [8] R.
Two dimensional heat conduction in graded materials using conformal mapping.

Research on the preparation of new materials, which observe and develop semiconducting and optoelectronic materials, is effectively important.
Materials and Methods Natural dye extraction.
Amel, "Utilization of Banana Extract for Eco-friendly Functional Finishing of Textile Materials: A review," Gezira Journal of Engineering and Applied Sciences, 13 (2019) 27-45
PS, " ABCD analysis of Dye-doped Polymers for Photonic Applications," IRA-International Journal of Applied Sciences, 4 (2016) 358-378
Rainer, " Material gain concentration quenching in organic dye-doped polymer thin films " Optical Materials Express, 9 (2019) 1208-1222

Jc cakes obtained after oil pressed, rich in protein content, were excellent materials for preparing formaldehyde-free wood adhesives, which could provide alternative to formaldehyde-based resins.
In addition, formaldehyde-based adhesives are derived from nonrenewable fossil resources, which generate an urgent need for the development of environmentally friendly alternative wood adhesives from renewable materials [2-3].
Materials and general methods Materials.
Journal of Biobased Materials and Bioenergy, 2008. 2: 1-24. 2.
Journal of the Science of Food and Agriculture, 2008. 88: 911-919. 11.

Abstract: Reinforced natural fibre composite materials are attracting greater attention in the area of material engineering due to their low density, low cost and higher mechanical strength.
The results showed that surface modification of AHF can enhance the impact strength of the composite materials but not the hardness of the composites.
Materials and Method Materials.
Basavaraju, “A review on the mechanical properties of areca fiber reinforced composites,” Science and Technology of Materials, 2018, doi: 10.1016/j.stmat.2018.05.004
VENKATESHAPPA, “Effect of Esterification on Moisture Absorption of Single Areca Fiber,” International Journal of Agriculture Sciences, vol. 4, no. 4, pp. 227–229, 2012, doi: 10.9735/0975-3710.4.4.227-229

EMI-based SHM Technique EMI technique is a kind of intelligent piezoelectric materials based on the analysis of the impedance damage detection technique.
[2] Ayres J.W., Lalande F., Chaydhry Z., Rogers C.A.: Smart Materials and Structures.
[5] Ayres J.W., Lalande F., Chaudhry Z.A. and Rogers, C.A.: Smart Materials and Structures, Vol.7 (1998), p. 599-605
[6] Soh C.K., Tseng K.K.H., Bhalla S. and Gupta A.: Smart Materials and Structures, Vol.9 (2000), p. 533-542
[9] Xu Y.G. and Liu G.R.: Journal of Intelligent Material Systems and Structures, Vol.13 (2002), p. 389-396

Misra, Development of iron based brake friction MMC used for military aircraft application by a new P/M route, Journal of Minerals & Materials Characterization & Engineering 10 (2011) 693-705
Srinivas, Friction and wear behavior of laser-sintered iron-silicon carbide composites, Journal of Materials Processing Technology 209 (2009) 5429-5436
Das, Synthesis and characterization of TiC-reinforced iron-based composites, Journal of Materials Science 39 (2004) 5735-5742
Ahmad, Characterization of Fe-Cr-Al2O3 composites fabricated by powder metallurgy method with varying weight percentage of alumina, Journal of Physical Science 29 (2008) 89-95
Misra, Development of iron based brake friction material by hot powder preform forging technique used for medium to heavy duty applications, Journal of Minerals & Materials Characterization & Engineering 10 (2011) 231-244.

Twelve types of fabrics made from different textile materials were tested.
Heat-moisture transfer performance of the textile materials such as fabric is one of the key factors affecting clothing wearing comfort, which also decides the performance of some special functional fabric.
Twelve types of fabrics with different structural features and made from different textile materials were tested for the temperature regulation properties.
D., Science, 1941, 94 (2445): 428-430
[10] Mu Yao and Mei-wu Shi, Journal of Northwest Institute of Textile Science and Technology, 2001, 15 (2): 50-52

Experimental Materials.
Open Journal of Organic Polymer Materials, 5, 1-22. https://doi.org/10.4236/ojopm.2015.51001 [3] Karmakar, G., & Ghosh, P. (2013).
Journal of Macromolecular Science, Part A, 57(4), 244-249. https://doi.org/10.1080/10601325.2019.1691449 [15] Mohammed, A.H. (2019).
Baghdad Science Journal, 16(2), 0345. https://doi.org/10.21123/bsj.16.2.0345 [16] Geethanjali, G., Padmaja, K.V., & Prasad, R.B.N. (2016).
Journal of Applied Polymer Science, 120(5), 2579-2586. https://doi.org/10.1002/app.33330

Cumulative damage investigation of research status and problem analysis of RC structure ZHANG Pin-le Department of Civil Engineering, Kunming University of Science and Technology, Kunming, China *Correspondence to: Zhang Pin-le, Kunming University of Science and Technology, 650500, P.R.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Grant No: 10572107).
Investigation of localization due to damage in elasto-plastic materials.
Mechanics of materials, 19(2): 129-135
Journal of Engineering Materials and Technology, 1988, 107(3): 83-89

Phase Change Materials (PCM) are used widely in passive heat storage system due to their high heat retention capacities.
[6] Kenisarin MM.," High-temperatures phase change materials for thermal energy storage".Renew Sustain Energy Rev 2010 ;14:955–70
Sadrameli.," Application of Phase Change Materials (PCMs) in Maintaining Comfort Temperature inside an Automobile".
Patil P.S. , Review of Phase Change Materials For Thermal Energy Storage Applications.
Sadrameli. " Application of Phase Change Materials (PCMs) in Maintaining Comfort Temperature inside an Automobile".