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The materials whose permittivity and permeability were assumed to be simultaneously negative were theoretically investigated for the first time by Veselago in 1967 [1].
The electromagnetic materials having negative index of refraction with permittivity and permeability values still positive are called chiral metamaterials.
Schultz, Experimental verification of a negative index of refraction," Science, Vol. 292, 77-79, 2001
Smith, Metamaterial electromagnetic cloak at microwave frequencies," Science, Vol. 314, No. 5801, 977-980, 2006
B., A chiral route to negative refraction," Science,Vol. 306, 1353-1355, 2004

The raw materials for copper production, including copper concentrates, blister copper and copper scraps, are mostly derived from importation.
In addition, the auxiliary materials such as steel [20] and limestone [21] were also considered in the system.
Jiang, Study on life cycle assessment of electrolytic Ni / Cu production from intergrowth ore, Journal of environmental sciences, 25(2005) 1570-1574
Gong, Environment impact of freight transportation in China, Material Science Forum, 4 (2014) 144-151
Materials Research Innovations, 18(2014), 56-61

The material adopts bilinear elastic-plastic material model, with density 7850Kg/m3, elasticity modulus 206GPa, tangent modulus 6.18GPa, the Poisson ratio 0.3, and the yield strength 235MPa.
It is shown that material nonlinearity has a significant impact on the buckling load for arch trusses, so it is should be considered the geometrical nonlinearity and material nonlinear when analysing stability.
It is shown that the coupling effect of geometry nonlinear and material nonlinear has accelerated reducing the stiffness of structure and bearing stable capacity
Acknowledgements This project is financially supported by National Natural Science Foundation of China (50878137), Key Project Foundation of Shanxi Province (20080321086) and Shanxi Province Foundation for Scholar Returned From Abroad (2009-26).
China Civil Engineering Journal, Vol.32 (1999) No.6, p.11.

This paper has calculate microbial species and heat quantity simply, and describe the macroscopic heat and mass transfer phenomena based on materials conservation .For biological drying technology, has not been reported until now .We should start to research a special reaction system which can accurately control the process of bio-drying on every period and it is important for the promotion of this technology about bio-drying.
[3] Ilic, M., and Turner, .I.W., Drying of a Wet Porous Material [J].
[7] THOMAS K M., Hydrogen adsorption and storage on porous materials [J] .Catalysis Today, 2007, 120 (3/4):389-398
International Journal of Thermal Sciences, 2007, 46 (8): 802-81 1
[11] Tsang, K.R; Vesilind, P.A, Moisture distribution in sludge [J].Water Science and Technology, 1990, 22(12):135-142

Experiments Materials.The kaolin is washed kaolin.
The impact of combined alkali By the done experiments, the strength of the material with Ca(OH)2 as the alkali activator was lower than the material with KOH and NaOH as the alkali activators.
China Building Materials Science & Technology,2008,19(3):51~55.
(in chinese) [3] Shuzheng Zhang, Kecheng Gong..Materials Science and Engineering,2003,21(3):430~436.
Journal of Building Materials,2002,5(3):284~288.

The study is totally based on industrial wastes to produce new building materials.
Experiments Chemical Constituents and physical property of raw materials.
Through this experiment, new building materials can produced from industrial wastes.
New Building Materials.
Journal of Wuhan University of Technology.

The scrap iron and activated carbon are used together in traditional micro-electrolysis and the mixed material is easy to harden and the mass transfer efficiency will decrease accordingly.
Considering the above defects, we chose the new style iron- carbon micro-electrolysis material to treat the fomesafen and trifluralin production wastewater.
Material and method Wastewater sample The wastewater was sampled from a pesticide factory in Qingdao, whose main products were fomesafen and trifluralin.
Treatment of fomesafen herbicide wastewater [J], Journal of Yangzhou University (Natural Science Edition), 2005,8(3):74-77
Study on Ultrasonic Degradation of Phenol Wastewater [J], Journal of Anhui Agriculture Siences, 2010,38(34):19454-19455,19490

Mc, International Journal of Heat and Fluid Flow. 7(2006) 135-143 [4] Q.R.
Yang, Journal of Jiangsu University (Natural Science), 23(2002) 1-4 [6] Z.C.
Yue, Journal of Hydrodynamics, 21(2006) 339-346.
Derbakova, Procedia Computer Science. 53(2010) 735–744 [8] J.
Schneider, Journal of Nuclear Materials. 39(2009) 203–206 [11] I.

Starch, triglycerides and lignocellulose are the raw materials for making biofuels from biomass.
The main content in lignocellulose materials is carbohydrates including cellulose, hemicellulose and lignin [7].
Methodology Materials and methods.
The materials were purchased from Sigma -Aldrich (St Louis, USA).
Pharmaceutical Sciences. 21 (2015) 1-5

DE-SC0012704 with Brookhaven Science Associates, LLC.
Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No.
Svensson, Journal of Applied Physics 94, 7112 (2003) [7] S.
Thieberger, Materials Science Forum 1062, 361-365 (2022) [9] Z.
Dudley, Journal of Crystal Growth 627, 127535(2024)