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Studies of Microwave Solvothermal Synthesis of the Nanocrystalline Copper and Lanthanum selenide and Its Structure Chen Lin1, Wang Shaoyan1, Wang Qin2 1School of Chemical Engineering, University of Science and Technology LiaoNing, Anshan China 2School of Material And Metallurgy, University of Science And Technology LiaoNing, Anshan China Email: ChenLin3102@163.com Keywords: Nanocrystalline; Microwave Solvothermal; Selenide; Rare Earths Abstract.
Many single rare earth oxides and some mixed rare earth oxide are the important raw materials of high temperature superconductors.
Therefore, studies of rare earth selenium nanocrystals will open up new fields of application in materials chemistry.
Journal of Functional Materials and Devices, 2001, 7(2): 211 [4] Jin Ying, Tang Kaibin, An Changhua, et al.
Science Press, 2002, 293

It is indicated that fractal dimension in fractal theory can be used to characterize the complexity of geometry and distribution of materials at different scales because both of them are statistically self-similar on a certain measurement scale[2,3].
The equipment for SEM is field-emission gun scanning electron microscope (JSM-6301F, TDK's SAE materials laboratory).
Chinese Journal of Geotechnical Engineering, 2007; 29(9):1386-1391
International Journal of Solids and Structures, 2000, 37:4627-4630
Mechanics of Materials, 2007; (39):326-339.

However, most of the research only did the qualitative analysis based on experiments or finite element modeling by taking steel tubular and concrete as a material without considering the influence of strength-differential in tension and compression of materials and intermediate principal stress.
Beijing: Science Press, 2006, in Chinese
Journal of Building Structures, 2006，27(5)：16-22, in Chinese
China Civil Engineering Journal, 2011,44(1):42-49, in Chinese
Beijing: Science Press, 2003, in Chinese

Materials and Methods Materials.
Dead-end filtration, Journal of Membrane Science 206 (2002) 361-373
Arrighi, Technologies for the removal of phenol from fluid streams: A short review of recent developments, Journal of Hazardous Materials 160 (2008) 265-288
Dai, Candida rugosa lipase immobilized by a specially designed microstructure in the PVA/PTFE composite membrane, Journal of Membrane Science 281 (2006) 410-416
Klein, Effects of naturally occurring antioxidants on peroxidase activity of vegetable extracts, Journal of Food Science 55 (1990) 184-186

Raw materials of Ce, Fe, Co, B with purity of 99.99% were re-melted five times to produce compositional homogeneity ingots.
Hiraga, Permanent magnet materials based on the rare earth iron boron tetragonal compounds, J.
Journal of Magnetism & Magnetic Materials, Vol. 196(1999) No. 5, P. 288
Journal of Magnetism & Magnetic Materials, Vol. 202 (1999) No. 2, P. 458
Crystal and magnetic structure of the permanent magnet materials Nd2Fe14−xCoxB (x,=0-14)[J].

Viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics during deformation.
Examples of viscoelastic materials include amorphous polymers, semi-crystalline polymers, bio-polymers, metals at very high temperatures, bitumen materials and living tissue and cells [7].
These materials have the tendency to creep, undergo stress relaxation and absorb energy.
Synthetic viscoelastic materials can be injected directly into an osteoarthritic knee to act as a lubricant and shock absorber.
Rudraswamy, Effect of nonlinear thermal radiation on double-diffusive mixed convection boundary layer flow of viscoelastic nanofluid over a stretching sheet, International Journal of Mechanical and Materials Engineering 12 (2017) 1-18 [24] S.M.

The gardenia fruit [7], beans [8], chestnut [9], longan [10, 11] and other raw materials have been used to extract phenolic compound and a variety of assisted technology such as high performance liquid chromatography (HPLC) [12], the adsorption resin separation [13], ultrasonic wave etc. were applied in the extraction process.
Materials and method Experimental chemicals.
Shahidi: Journal of Food Science Vol. 61 (1996), p. 604
Chang: Journal of Food Science Vol. 72 (2007), p.
Gan: Journal of Guangxi Light Industry Vol. 27 (2011), p. 9.

Gel phantoms are useful materials for medical diagnostics and impact testing.
Introduction Gel phantoms are materials which are very flexible due to the applications for medical diagnostics, pharmaceutical, food industry and impact testing among others.
As a model material, it would be useful to characterize and differentiate these defects.
Though the impedance measurements require more precision, this work shows that impedance measurements can be a reliable method for defect characterization in materials.
Mischi, Acoustic characterization of tissue-mimicking materials for ultrasound perfusion imaging research, Ultrasound in Medicine & Biology 48-1 (2022) 124-142

Series: Materials Science and Engineering 330 (2018) 012017 doi:10.1088/1757-899X/330/1/012017
Halfa, Recent Trends in Producing Ultrafine Grained Steels Journal of Minerals and Materials Characterization and Engineering 2 (2014) 428-46 [9] A.
Computational Materials Science 48 (2010) 166–173
Ponthot,Numerical simulation of cold roll-forming processes, journal of materials processing technology 2 0 2 ( 2 0 0 8 ) 275–282 [19] M.
Baradai,The effect of cold work on structure and properties of AISI 304 stainless steel,journal of materials processing technology 203(2008) 80–85

The synthetic group of adhesives materials have been more allocated into two key groups: industrial adhesives material and special compound adhesive materials.
Industrial compounds materials include epoxies, acrylics, silicones etc.
Fatigue & Fracture of Engineering Materials 2004:413–22
Journal of Adhesion Science and Technology 2000:1265–96
Journal of Adhesion Science and Technology 2006:1547–60