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The contents of Cu, Zn are both influenced by soil parent materials and soil-forming process.
Materials and Methods Study Area.
The content of calcium and magnesium is higher in two types of soil parent materials.
Baiyao base is far away from pollution producting activities, and distributions of soil available Cu and Zn are determined by their parent materials.
[27] Baicheng Xie, Chunxia Zhang, Xuzhang Xue: Journal of Agro-Environment Science Vol.26(2007), p. 132-135,in Chinese

The particle boards, oriented strands boards and plywood as the testing materials were chosen.
Materials and methods 2.1.
Uppsala: Swedish University of Agricultural Sciences, 1996
Wood Science, 3 (3), 172-178, 1971 [12] Mizumoto, S.
Journal of the Japanese Forestry Society, 48 (1), 7-11, 1965 [13] Highly, T.L.

Introduction For most sleeve grouting materials, the basic combination consists of cementitious materials, mineral admixtures, admixtures and aggregates.
New Building Materials, 2002, (08): 40-1
Journal of Railway Science and Engineering, 2016, 13(04): 654-61
Journal of Railway Science and Engineering, 2015, 12(05): 1074-82
Journal of Henan Polytechnic University (Natural Science), 2011, 30(02): 206-10+24

Therefore, porous ceramic is widely used in purification separation, gas or liquid filtration, catalyst carrier, special wall materials, heat preservation materials, biological materials, chemical energy storage materials, aviation materials etc.
Vol.26(2012), p.105 [2] K.Ikeda, H.Kinoshita, R.Kawamura, et al.: Journal of Solid Mechanics and Materials Engineering.
Vol.39 (2012), p.49 [5] Y.M.Zhang, D.K.Liu, J.C.Han, et al.: Ordnance Material Science and Engineering (in Chinese).
Vol.36 (2008), p.1775 [13] S.Zhao, Y.Liang, J.Y.Wu, et al.: Journal of Shenyang Jianzhu University (Natural Science) (in Chinese).
Vol.32 (2013), p.1389 [18] S.J.Kim, H.G.Bang, S.Y.Park: Materials Science Forum.

a cclin@mail.dyu.edu.tw, b fengmin@mail.dyu.edu.tw, c r9915034@mail.dyu.edu.tw Keywords: PVDF, coating, piezoelectric materials, polarization, modal analyze.
In this study, we are used the raw PVDF materials to produce the piezoelectric polymer layers are used as the coating film, observe whether the thicknesses of specimen affect the polarization and analyze the natural frequency of polymer material plates.
Acknowledgements This research was supported by the National Science Council of Taiwan under Grant No.
Journal of Microelectromechanical Systems, 6, No. 3, 1997
Journal of the European Ceramic Society, 45, pp. 1673-1676, 2004

Purohit ,Static Response of Functionally Graded Material Plate under, International Journal of Metals, 2014
Venkaiah, Modeling and analysis of functionally graded cylindrical shell, Materials Today, 5(2018) 8587-8595
Cooley, Application of functionally graded materials in aircract.
Mohanty, Modal analysis of Functionally Graded material Plates using Finite Element, Procedia Materials Science, 6(2014) 460-467
Bio-Medical Materials and Engineering, 14(2004) 133-143

Rheological study of composite materials based on thermosetting matrix and fillers mineral IREKTI Amar1, a, BEZZAZI Boudjema1,b 1 Research Unit: Materials, Processes and Environment, UR/MPE, University M'Hamed Bougara, Frantz Fanon City, 35000 Boumerdes Algeria.
Introduction The thermosetting matrix materials are most common in composite applications [1].
Materials and methods Materials used Epoxy resin.
Synthesis of composite materials BY Co-Dry grinding.
Le Pluart and al, Rheological properties of organoclay suspensions in epoxy network precursors, Applied Clay Science 25 (2004) 207– 219 [13] FAN XIE and al, Study on the reaction kinetics between PBT and epoxy by a novel rheological method, European Polymer Journal 41 (2005) 2171–2175 [14] BYUNG-JOO Kima and al, Roles of Ni/CNTs hybridization on rheological and mechanical properties of CNTs/epoxy nanocomposites, Materials Science and Engineering A 528 (2011) 4953–4957 [15] THAI-HUNG LE, Rheology and microstructure of polymer matrix composites filled thermosetting minéralement and reinforced by glass fibers, Thesis at the University JOJEPH Fourier - Grenoble I, 2008

Journal of Hazardous Materials, 166 (2-3) (2009) 916-924
Chew, A review of fire processes modeling of combustible materials under external heat flux.
Materials Science Forum, 1038 (2021) 500–505
Problems of Atomic Science and Technology, 116 (4) (2018) 194–199
Problems of Atomic Science and Technology, 122 (4) (2019) 116–119.

Journal of Materials Processing Technology.185 (2007):60-71
Materials Science and Engineering: A.425(2006): 47-54
Materials Science and Engineering: A.510-511(2009): 295-300
Journal of Materials Processing Technology.68(1997):262-274
Journal of materials processing technology. 196(2008):79–87

CNC CAD/CAM programming software provides machinists with solutions to cutting their materials faster.
Any increase in the cutting depth led to increase the machining accuracy of materials samples as shown on Fig.2e & 2f.
It became clear that the cutting process behavior and measurement accuracy have significant impact the quality of machined materials.
The relative relation between RON and diameter variation in measurements for different materials 5.
Ali and Jariya Buajarern, New Measurement Method and Uncertainty Estimation for Plate Dimensions and Surface Quality, Advances in Materials Science and Engineering, Vol. 2013, Article ID 918380, PP.1–13.