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Introduction The vibrating screen is a general equipment used to clean , grade and purify the materials,  the principle of which is vibration being applied to screen and grade materials.
The materials moved in straight  line and were thrown under two excitation forces from the vibration motors ,then were screened and graded .
The International Journal of Advanced Manufacturing Technology, 21(2001) 438—455
Journal of Aeronautics,2(1980)36—37
Mechanical fatigue reliability design, third ed.Science Press, Beijing, 2006.

Ha et al., Journal of Applied Physics 96 (2004) pp.393-398
Zhang et al., Materials Science Forum 600-603 (2009) pp. 103-106
La Via et al., Journal of Crystal Growth 311 (2008) pp. 107-113
[6] T.Aigo et al., Materials Science Forum 645-648 (2010) pp. 119-122
Feng et al., Physica B 404 (2009) pp. 4745–4748 [9] R.Hattori et al., Materials Science Forum 615-617 (2009) pp. 129-132.

ACKNOWLEDGEMENT A special thanks to Universiti Malaysia Perlis and School of Materials Engineering for providing research facilities and technical assistance for their help and cooperation in research work.
European polymer journal, 37(1), 39-44
Journal of applied polymer science, 73(5), 749-756
Journal of Applied Polymer Science, 126(S2), E56-E63
Key Engineering Materials, Vols. 594-595, 862-866

At present, the most common method to treat acid mine drainage from coal waste piles is chemical precipitation by addition of alkaline materials, such as lime, limestone, caustic soda, etc.
Materials and methods The SRB species was isolated and cultivated from the landscape river sediment in Unviersity of Jinan, Shandong province.
[5] I.S.Chang, P.K.Shin, B.H.Kim, Biological treatment of acid mine drainage under sulphate-reducing conditions with solid waste materials as substrate.
Chemical Engineering Science. 2001, 56 (4): 639-1645
Journal of Hazardous Materials. 2008, 157: 358-366 [10] G.J.

However, measuring deformation in the bulk of the material is still a challenge.
The internal point P is then computed as P = PA + PB 2 . (5) It can be pointed out that, if the deformation is symmetrical, as it theoretically occurs in isotropic materials, PA, PB, and P will be coincident.
However, because of measurement errors and possible anisotropy of heterogeneous materials, the former is not usually true.
Yoon, "Prediction of failure in bending of an aluminium sheet alloy," International Journal of Mechanical Sciences, vol. 119, pp. 23-35, 2016
Amodio, "A 360-deg digital image correlation system for materials testing," Optics and Lasers in Engineering, vol. 82, pp. 127-134, 2016

Lauwers, "Selective laser melting of iron-based powder," Journals of Materials Processing Technology, vol. 149, pp. 616-622, 2004
Zhang, "Additive manufacturing," Progress in Materials Science, vol. 92, pp. 112-224, 2018
Williams, "Perspectives on Titanium Science and Technology," Acta Materialia, vol. 61, pp. 844-879, 2013
Zeng, "Formation and control of martensite in Ti-6Al-4V alloy produced by selective laser melting," Materials & Design, vol. 108, pp. 308-318, 2016
Attallah, "Qiu_2013_Microstructure and tensile properties of selectively laser-melted and of HIPed laser-melted Ti–6Al–4V," Materials Science & Engineering, vol.

Acknowledgments The authors gratefully acknowledge the Refine and Catalysis Laboratories, (NUPRAR/LCR) at UFRN, the Post-Graduation Programs of Petroleum Science and Engineering and Materials Science and Engineering (PPGCEP/PPGCEM) and CAPES-Brazil for their financial support and scholarship provided.
Microporous and Mesoporous Materials. 136 (2010) 25–32
Journal of Porous Materials. 21 (2014) 1069-1077
Microporous and Mesoporous Materials. 25 (1998) 75-80
Verified syntheses of mesoporous materials.

Usually, quasi-static tension-compression Bauschinger tests are used to assess the materials kinematic hardening.
For example, most materials show a higher ultimate strength when dynamically loaded.
Bauschinger tests are carried out to study the materials kinematic hardening behaviour.
The curves clearly show the materials’ strain hardening until fracture.
The first results show that the technique is promising for assessing the materials kinematic hardening behaviour.

Fourier transformer infrared spectroscopy (FTIR), Scanning electron microscope (SEM) and thermal gravimetric analysis (TGA) techniques confirmed the synthesis of the precursor’s materials and the success of the grafting onto starch nanoparticle.
Besides, using AN as a reactive hydrophobic monomer to minimize the hydrophilicity of SNPs; in addition to introduces some smart characteristics onto the resultant copolymer like resistance to biodegradability and water and saline absorption after saponification as the second target. 2 Experimental Part 2.1 Materials.
Material to liquor ratio 1:20 was used.
El-Sanabary.Towards Synthesis and Characterization of Smart Materials Based on Chitosan Using Mn-IV Itaconic Acid as A Novel Redox Pair, Journal of Polymers and the Environment; 26, (2018) 3250–3261
Singh, Turbulent drag effectiveness and shear stability of xanthan-gum-based graft copolymers, Journal of Applied Polymer Science, vol. 37, no. 10, (1989), 2933–2948,

Reducing the average area of the grains, the material hardness increases, but at the same time its impact resistance decreases.
Molina, Self-hardening alloys for automotive application, Materials Science Forum, 794-796 (2014) 1221-1226
Prabhu, Modification of eutectic silicon in Al-Si alloys, Journal of Material Science, 43 (2008) 3009-3027
Obayi, Structural Modification of Sand Cast Eutectic Al-Si Alloys with Sulfur/Sodium and Its Effect on Mechanical Properties, World Journal of Engineering and Technology, 1 (2013) 9-16
Campbell, International Journal of cast metal research, 17 (2004) 280-286