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So, the piezoelectric materials have no utilized, and the conversion efficiency is low.
Piezoelectric patches bonded on the surface of metal substrate, the electrodes derivative from the metal substrate and piezoelectric materials respectively.
So, choose PVDF as the piezoelectric layer; choose phosphor bronze, aluminum and molybdenum as the materials of metal substrate separately.
Journal of Zhejiang University (Engineering Science), 2010, 44(3): 528-532
Comparison of Piezoelectric Energy Harvesting Devices for Recharging Batteries [J].Journal Of Intelligent Material Systems And Structures，2005，16(10):799-807.

Cosmetic raw materials are divided into three groups: main ingredients, auxiliary substances, and active ingredients.
Material and Method 2.1.
Materials The presented study was carried out with the facilities of Bilecik Şeyh Edebali University Engineering Faculty Chemistry and Process Engineering Department and the raw commercial materials provided by the TEMKO company.
Algerian Journal of Environmental Science and Technology , 7 (2) (2021), ISSN : 2437-1114
Willd, Asian Journal of Biological and Life Sciences, 11(2) (2022).

For the hard and brittle materials like optical glasses, ultra-precision grinding machine is primarily used, which can generate parts with high surface finish, high form accuracy and surface integrity.
Introduction Hard and brittle materials like ceramics and glasses have to be machined by abrasive processes.
The material performance parameters of the spindle are shown in table 2.
Acknowledgements The authors gratefully acknowledge the financial support provided by National Science and Technology Major Project of China (Grant No. 2011ZX04004-051).
International Journal of Machine Tools & Manufacture. 43(2003)1163-1170

Methodology Materials Nitrogen-doped activated carbon was synthesized by mixing coconut shell charcoal and polyaniline (PANI) as nitrogen precursors following the pyrolysis method, with a surface area of 927-1408 m2g-1.
Material and Electrochemical Characterizations.
Dhakate, Development of multiwalled carbon nanotubes platinum nanocomposite as efficient PEM fuel cell catalyst, Materials for Renewable and Sustainable Energy, 2016, vol. 5, no. 1, p. 2
Mishra, Studies on Nanocomposites of Polyaniline Using Different Substrates, American journal of polymer science, 2015, pp.1–6
Goswami, Effect of nitrogen doping on structural and optical properties of ZnO nanoparticles, Progress in Natural Science: Materials International, 2015, vol. 25, no. 4, pp. 300–309

This technique assumes that the materials in each element is composed of an infinite number of microscopic cells containing varying degrees of solid and void thus forming a composite porous medium.
In the SIMP formulation, an artificial isotropic material model is introduced and element-wise material density variables are used for describing the structural layout.
step(4) Calculate each separate unit the mechanical behavior of materials, calculate element stiffness matrix, assembly structure total stiffness matrix, calculate the node displacement and strain.
Acknowledgements The supports of Hebei Province science and technology research and development project (08212111D)(05212108D), the doctor scientific research foundation project of Hebei University of Technology.
[4] Yoon Gil Ho, Kim Yoon Young: International Journal of Solids and Structures Vol.42(7) (2005), p.1983–2009

Al-SiCp composites are one of the most frequently used materials.
Celis, Microstructure and interface characteristics of B4C, SiC and Al2O3 reinforced Al matrix composites: a comparative study, Journal of Materials Processing Technology 142 (2003) pp. 738-743
Kieback: Dimensional behaviour of aluminium sintered in different atmospheres, Materials Science and Engineering A 478 (2008) 251–256 [4] G.
He, Effects of particle size and distribution on the mechanical properties of SiC reinforced Al–Cu alloy composites, Materials Science and Engineering A 528 (2011) pp.1131–1137
Hakan Gur, Andrea Makszimus, Tadeusz Pieczonka: Investigation of microstructure inhomogeneity in SiCp-reinforced Aluminium matrix composites, Materials Science Forum Vol. 534-536. 2007 pp. 901-904.

Srisiriwat: Applied Mechanics and Materials Vol. 110-116 (2012), pp.72-82
Yesodharan: Current Science Vol. 82 (2002), pp. 1112-1122
Croiset: The Journal of Supercritical Fluids Vol. 57 (2011), pp. 58-65
Cavallaro: Journal of Power Sources Vol. 74 (1998), pp. 17-238
Wutthithanyawat: Applied Mechanics and Materials Vol. 619 (2014), pp. 99 -104

Chemical structure, thermal performance, micro-morphology and hydrophobic property of the hybrid materials and film were investigated by Fourier Transform Infrared Spectrum (FT-IR), Thermogravimetric Analyzer (TGA), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) and Static contact angle analyzer, respectively.
So if those polymers were hybridized with nano-silica to engender novel fluorosiloxane polymer/silica hybrid nanocomposites and then those newly hybrid materials were utilized to handle the cotton fabrics, could superhydrophobic cotton fabrics be simply acquired?
Experimental Materials Polymethyltrifluoropropylhydrosiloxane (PFHMS) was prepared in our laboratory with a Si-H content of 0.105 % ( expressed by the moles of Si-H groups contained in 1 grams silicone).
Acknowledgements The authors would like to address our appreciation to Scientific Research Program Funded by Shaanxi Provincial Education Department (Program No. 2010JK442) and Natural Science Foundation Program Funded by Shaanxi University of Science and Technology (Contract Grant No.
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With the development of manufacturing technology, materials processing is no longer confined to traditional removal process.
It well used in hard materials removal, micro holes machining and 3D micro complex parts fabrication.
Acknowledgments This work is supported by National Natural Science Foundation of China under No. 50675049.
Dong: Journal of Materials Processing Technology, Vol. 210 (2010), p.129 [4] B.M.
Schumacher: Journal of Materials Processing Technology Vol. 149 (2004), p. 376

Study on pretreatment of dye wastewater by Fenton oxidation process Birong Wang1, a 1 School of Material and Chemical Engineering, Sichuan University of Science & Engineering , Zigong, Sichuan, 643000, China abirwang@126.com Keywords: Fenton reagents, dye wastewater, pretreatment, refractory biodegradation, environmental engineering.
Combined humic acid adsorption and enhanced Fenton processes for the treatment of naphthalene dye intermediate wastewater，Journal of Hazardous Materials 198 (2011) ,P232– 240 [3] Park, S., Yoon, T., 2007.
[4] Abdullah Yasar, Nasir Ahmad, Aamir Amanat Ali Khan, Anwer Yousaf，Decolorization of Blue CL-BR dye by AOPs using bleach wastewater as source of H2O2，Journal of Environmental Sciences 19(2007) ,P1183–1188.