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The design of the piezoelectric film is relatively easy, the piezoelectric ceramic materials with appropriate thickness, appropriate performance is designed according to the cavity’s resonant frequency, The back of the circuit is relatively easy to handle, as the Piezoelectric material’s pressure disappears, the charge will disappear, there will be no voltage, To take advantage of the piezoelectric material to generate electricity, the piezoelectric ceramic chip is in parallel with a capacitor, The value of capacitance is selected according to the performance of piezoelectric ceramic materials and the voltage required by the behind circuit, then, a low-power DC-DC converter is followed to get a constant voltage.
Journal of Detection & Control, 2008,30 (02).1-4.in Chinese
Journal of Detection & Control, 1994. (01).8-13, in Chinese
Journal of Nanjing University of Science and Technology,1999,.23 (05).418-421, in Chinese
Engineering Science,2005,7 (01).27-32, in Chinese

The source of raw materials for these polymers is oil and natural gas.
The absence of toxicity inherent in PF, and the use of renewable plant materials for their production, makes them promising materials of the future.
Yin, Curing reaction of furfural acetone resin used for new carbon materials, Chinese Journal of Nonferrous Metals. 18 (2008) 953-958
Shah, Glass reinforced composites based on (epoxy-furfural-acetone) resin blends, International Journal of Polymeric Materials and Polymeric Biomaterials. 46 (2000) 293-300
Solovev, Modelling of Ultrasonic Concentrators for Processing of Volume Nanostructured Materials, Materials Science Forum, Vol. 992 (2020) 940-946.

The composite materials prepared with the plasma treatment for 0min and 15min are analyzed [20].
Advanced composite materials and aerospace.
Li: New Chemical Materials, Vol. 38 (2010), No.8, p77-80
Luo: Materials Science and Technology, Vol. 20 (2012), No.6, p.1-6
[16] Kumar S B,Sridhar I: Materials Science and Engineering, Vol. 498 (2008), p.174-178

The Morphology Control of Nano-Cu2O and Study on Its Phototocatalytic Properties in the Treatment of Chromium-Containing Wastewater Bin Zhao1,2,3,a, Di Ma1,2,b 1 Sichuan University of science and engineering, Sichuan zigong, China 2 Key Laboratory of Green Catalysis of Sichuan Institute of High Education, Sichuan zigong, China 3 Institute of Functionalized Materials, Sichuan University of Science & Engineering, Sichuan zigong, China azler_sc@21cn.com, bchemadi@sina.com Keywords: Cu2O，Photocatalyst, Nanometer material, Wastewater treatment Abstract.
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Zhou, Development and Application of Materials, Vol. 25 (2010) No3, p 17-21.

From building materials science point of view, such effects are explained by the interaction conditions of the foam glass particles and the sintered ceramic crock in the contact zone.
Naser, Properties and material models for common construction materials at elevated temperatures, Construction and Building Materials. 215 (2019) 192-206.
[9] Dos Santos Gerson Henrique, Mendes Nathan, Combined head, air and moisture (HAM) transfer model for porous building materials, Journal of building physics. 32 3 (2009) 203-220.
Baetens, The path to the high-performance thermal building insulation materials and solutions of tomorrow, Journal of building physics. 34 2 (2010) 99-123.
Nikbakht, Incorporation of waste materials in the manufacture of masonry, Journal of Building Engineering. 21 (2019) 37-54.

Experimental Procedure Materials.
Kalin: Tribology of Ceramics and Composites: Materials Science Perspective (John Wiley & Sons 2011)
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Advanced Engineering Materials Vol. 13(12)(2011), p.
Yin: Wear Behavior of Pressable Lithium Disilicate Glass Ceramic, Journal of Biomedical Materials Research Part B: Applied Biomaterials Vol. 104(5)(2016), p. 968–978

Measurements of Thermal Properties of Different Building Materials Akos Lakatos 1Assoc.
Journal of Harbin Institute of Technology (New Series) 14 (SUPPL.) , pp. 81-84
Materials and Structures.
International Review of Applied Sciences and Engineering. 2011.
Materials and Structures. 2014..

Its specific gravity and strength are one-fifth and five times as large as steel materials, respectively.
Then, the CNF is expected to be used as a composite material [6-8].
Peijs, Review: Current international research into cellulose nanofibres and nanocomposites, Journal of Materials Science, 45 (2010) 1-33
Yano, Production of cellulose nanofibers and their applications, Journal of The Society of Rubber Science and Technology, Japan 85 (2012) 376-381
Kobayashi, An experimental study of fabrication of cellulose nano-fiber composited Ni film by electroplating, Materials Transactions 63 (2022) 821-828

Materials Science Forum,1020(2021),13-22
Materials Science Forum,1018(2021),13-22
Materials Science Forum,1018(2021),3-12
Materials Science Forum,1018(2021),33-41
Materials Science Forum,1018(2021),23-32

Materials.
Lopez-Hombrados: ACI Materials Journal Vol.103 (2006), p. 106 – 112
Rangan: ACI Materials Journal, Vol. 101, (2004), p. 467-472
Lukey: Journal of Materials Science, Vol. 42 (2007), p. 3107-3116
Rangan: Journal of Material Science Vol. 42, No. 9 (2007), p. 3124-3130