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SFE has been successfully applied in many different fields, such as food science, natural products, by-product recovery, pharmaceutical and environmental sciences, etc. [3].
CO2 is supercritical above 31.1 ˚C and 7.38 MPa, which makes it an ideal solvent for extracting thermally sensitive materials [5].
Materials and methods Materials and chemicals.
Petroleum ether, cyclohexane, n-hexane, and benzene are nonpolar materials.
A.: Journal of Agricultural and Food Chemistry Vol. 43 (1995), p. 2876 [10] Jaka Sunarso, and Suryadi Ismadji: Journal of Hazardous Materials Vol. 161 (2009), p. 1

Materials and Methods 2.1.
Journal of Hazardous Materials Vol. 129 (2006), p. 116–122
Journal of Hazardous Materials Vol. 114 (2004), p. 199–210
Journal of Hazardous Materials Vol 100 (2003), p. 163–178
Electrocoagulation (EC) - science and applications, Journal of Hazardous Materials Vol 84 (2001), p. 29–41

Chien: Journal of Materials Processing Technology Vol. 113 (2001), P. 720 [2] F.
Lee: Journal of Materials Processing Technology Vol. 147 (2004), p. 397 [3] N.
Takakura: Journal of Materials Processing Technology Vol. 139 (2003), p. 64 [4] Y.B.
Ding: Materials Science Forum Vol.575-578 (2009), p.316 [6] J.H.
Fan, Z.M.Zhang: Materials Science Forum Vol. 628-629 (2009) p.541

Journal of Manufacturing Science and Engineering. 2004,126 : 849~857
Journal of Materials Processing Technology, 2007, 142:72–81
Journal of Materials Processing Technology.1998, 75:127–136
Journal of Materials Processing Technology.2004, 153:1019–1025
Journal of Materials Processing Technology. 2007.

Materials and methods The study area The study area (28º13´N, 116º55´E) is located in Yujiang County of Jiangxi Province, China, near the Ecological Experimental Station on Red Soil of Chinese Academy of Science.
Soil parent material is dominant by Quaternary red clay and Haplic-Udic Ferrosols.
Hydrological Sciences Journal. 1997, 42:405--423
Journal of Soil Science. 1991.42: 147--165
Hydrological Sciences Journal. 1990, 35: 243--251

Experimental The main raw materials have been used in this experiment are P.O 42.5 ordinary Portland cement (C), silica fume (SF), fly ash (FA), natural sand (S), recycled aggregate (RA), natural aggregate (NA) and superplasticizer.
Their water-binding materials ratio is 0.25, the replacement ratio of silica fume and fly ash is 15%.
Journal of Material Science Letter. 2002,21 (20): 1565–1567
Key Engineering Materials.
Journal of Wuhan University of Technology (Materials Science Edition), 2010.2: pp.328-331

Introduction The emergence of new materials, especially composite materials or multi-layer materials are increasingly used in industrial systems requires the knowledge of their thermophysical properties.
This method is based on the pulsed thermal imaging–multilayer analysis (PTI-MLA) method that has been commonly used for testing of coating materials.
In the case of our work, we consider a heterogeneous material consisting of several homogeneous materials of different thermophysical property. 2.
We assume that the thermal contacts between the different materials are perfect and that the contact resistances are null.
Glouannec: Identification of insulating materials thermal properties by inverse method using reduced order model, International Journal of Heat and Mass Transfer 166(5-6): 120683, 2021 [9] K.

Introduction Corrosion and wear on the material surface were two primary kinds of failure mode of metal material and product.
Material and Methods 20 steel was used as base material.
Acknowledgements This paper was supported by the science and technology project of Zhejiang Machinery and Electrical Group Limited Company (project number, 2014JD001).
Belzunce, Wear and oxidation behaviour of high-chromium white cast irons, Materials Characterization. 59(2008)669-674
Sun, et al, Study on microstructure and corrosion resistance of laser cladding Co-based alloy, Chinese Journal of Lasers. 28(2001) 860-864.

Composite propellants, in reality, are physical mixtures of particle and binder materials and heterogeneous by nature.
International Journal of Solid and Structures.
Mechanics of Time-Dependent Materials. 8, 2004: 65-94 [3] Ozupek S.
Journal of Engineering Materials and Technology. 119, 1997:198-204 [5] Matous K et.al, Multiscale damage modeling of solid propellant: theory and computational framework.
Journal of Material Science. 34, 1999:4209-4218

So materials can be a very good fusion, and does not appear Weld.
Pantani :European Polymer Journal,Vol.41/7 (2005), P.1484
Koszkul: Journal of Materials Processing Technology, Vol.157-158 (2004), p.183
Hieber: Polymer Engineering and Science, Vol. 42/7 (2002), p.1387
Mohamad: International Journal of Mechanical and Materials Engineering, Vol. 4 (2009), p.70