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Therefore cultivate of medicine materials must select pollution-free soil to avoid direct and indirect danger from heavy metal pollution.
Thus it is necessary that medicine materials cultivate pollution-free soil and further avoid direct and indirect danger from chromium pollution.
Therefore moderate dose cuprum in soil will help the promotion of plant metabolism and improvement quality of medicine materials.
Susana.: Journal of Hazardous Materials, Vol. 185 (2011), p.862 [12] Q.
Pinto, M.L.: Journal of Hazardous Materials, Vol. 173 (2010), p.570

It is used for removing conductive materials by thermal energy.
Journal of Materials Processing Technology, 2002. 124(3): p. 297-304
Journal of King Saud University-Engineering Sciences, 2018. 30(3): p. 266-272
Journal of materials processing technology, 2004. 149(1-3): p. 272-277
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2007. 29(4): p. 366-371

The materials on the sieves receive the impulse which the sieves passing to produce continual throwing movement in the inclined screening surface.
Under variable load with frequency 16-17 Hz (1000r/min) conditions, vibration screen which do long-term is stressed by materials and affected by slurry of water and other corrosive liquid media.
The work done in this paper provides a basis to the design process of the vibration screener for the selection of materials and the optimization design.
Yu: Journal of Anshan University of Science and Technology, Vol. 26 (2003) No. 2, pp. 119-122.
Zhong: Journal of University of Shanghai for Science and Technology, Vol. 3 (2009) No. 3, pp. 1299-302.

RS after different HFMI processes were extensively characterized by Nitschke-Pagel and co-workers in different welding configurations and materials [5-7].
Topper, High cycle fatigue behavior of impact treated welds under variable amplitude loading conditions, International Journal of Fatigue 81 (2015), 128-142 [20] Information on http://www.empowering-technologies.com/page-43-ultrasonic-impact-treatment-needle-peening.html [21] Fabien Lefebvre, et al., External reference samples for residual stress analysis by X-ray diffraction, Materials Science Forum 681 (2001), 215-222 [22] Y.
Fujiwara, On the diffraction plane dependency of X-ray elastic constants, Journal of the Society of Materials Science Japan 18 (1969), 1066-1071 [23] A.
Bocher, Computational quantification and correction of the errors induced by layer removal for subsurface residual stress measurements, International Journal of Mechanical Sciences 64 (2012), 184-195 [30] T.
Frydrysek, Report about the possibilities of FEM applied in the verification of X-Ray measurement of residual stress, MM Science Journal 178/179 (2010), 1-2 [34] E.

Introduction It is well-known that the mechanical properties of materials under dynamic loading are different remarkably from that under quasi-static case.
Thus, the characterization of dynamic mechanical properties of wheel/rail materials is required and important for designing and assessing the safety of the wheel-rail system.
Over the last several decades, there are a number of constitutive models (i.e., empirical, semi-empirical and physically-based models) were proposed to depict the dynamic plastic behavior of materials.
Clark, An investigation into the dynamic effects on the track of wheelflats on railway vehicles, Journal of Mechanical Engineering Science. 21 (1979) 287-297
Bassim, Characterization of the compression properties of rail steels at high temperatures and strain rates, Materials Science and Engineering A. 141 (1991) 247-260

Last but not least, the sluice of Shilianghe reservoir should be released on time to maintain a smooth flow and promote the circulation of materials thereby improving the water environment.
[2] BP Han: Journal of Lake Sciences, Vol. 22(2) (2010), p. 151-160 ( in Chinese)
[10] HY Sheng, ZM Yu, TC Han, etc: Journal of Lake Sciences, Vol. 22(2) (2010), p. 235-243 ( in Chinese)
[17] JM Deng, YJ Cai, YW Chen, etc: Journal of Lake Sciences, Vol. 22(1) (2010), p. 70-78 ( in Chinese)
[18] Y Li, LJ Xiao, QQ Lin, etc: Journal of Lake Sciences, Vol. 22(2) (2010), p. 227-234 ( in Chinese)

Chemical compatibility of self-lubricating ceramic tool materials, such as Al2O3/TiC/MoS2, Al2O3/TiC/h-BN, Al2O3/TiC/CaF2, were analyzed and calculated, and the results were verified by X-ray diffraction patterns.
Al2O3 TiC AlN Fig.1 is the X-ray diffraction patterns of Al2O3/TiC/h-BN ceramic materials produced by hot pressing at 1600℃.
Fig. 2 shows the X-ray diffraction patterns of Al2O3/TiC/MoS2 ceramic materials prepared by hot pressing at 1400℃.
Under the thermal stress, material phase volume has changed.
Acknowledgements This work is supported by “the Scientific Research Foundation for the Excellent Young Scientists of Shandong Province (BS2010ZZ003)”, “A Project of Shandong Province Higher Educational Science and Technology Program(J12LB11)” and “the Basic Research Program of Qingdao Science and Technology Projects(11-2-4-3-(14)-jch)”.

Sebaie, Journal of Materials Processing Technology 214, (2014), 828 – 838
El-Sebaie, Journal of Materials Processing Technology 216, (2015), 520–528
Ming-Nan, Journal of Materials Processing Technology , 140, (2003) 441–447
Karimi Taheri, Journal of Materials Processing Technology, 166, (2005), 163 – 172
Nielsen, Journal of Materials Processing Technology, 170, (2005), 524–535

A hybrid composite is the one which contains at least three materials.
The composite materials can be applied as potential lightweight materials in automobile components.
The open Industrial and manufacturing Engineering journal, 2010, 3, 1-6
Composites Science and Technology 67 (2007) 3369-3377
International journal of Engineering and Applied Sciences 6 2012

Materials are weighed according to stoichiometry.
Journal of Cluster Science, 28(3), 1083–1112, (2017). https://doi.org/10.1007/s10876-016-1101-0 [5] M.M.
Journal of Inorganic and Organometallic Polymers and Materials, 25(5), 1019–1031, (2015). https://doi.org/10.1007/s10904-015-0203-8 [8] M.
Journal of M agnetism and Magnetic Materials, 474, 505–511, (2019). https://doi.org/10.1016/j.jmmm.2018.11.010 [11] P.
Journal of Magnetism and Magnetic Materials, 500, 166416, (2020). https://doi.org/10.1016/j.jmmm.2020.166416 [13] M.