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Comprehensive utilization of various characteristics of piezoelectric materials and effect can achieve to control structure.
The structure attached to piezoelectric materials is often called "smart structures ".
And piezoelectric materials have been proved to meet the engineering requirements to provide excitation energy, and easy to control and use.
In order to verify science and rationality of the theoretical research, we planned and completed the following test projects.
References [1] Crawley E.F., “Intelligent Structures for Aerospace: A Technology Overview and Assessment”, AIAA Journal, 1994, Vol.32, No.8 Aug. pp.1689-1699

Journal of Heuristics, (2013), 19(3): 497-524
International Journal of Operational Research, (2013), 16(3): 329-348
Journal of the Operational Research Society, (2011), 62(1): 183-188
World Academy of Science, Engineering and Technology, (2009), 60: 654-659
Advanced Materials Research, (2014), 846: 1364-1367.

Analysis of P-M damage accumulation in zirconium dioxide; testing through gradually increasing load method Mateusz Wirwicki1, a, Tomasz Topoliński1, b 1 University of Technology and Life Sciences, al.
Treatment method is another factor which affects the material strength [3,4].
The material becomes snow white and its strength parameters increase rapidly.
References [1] Guazzato M, Albakry M, Ringer SP, Swain MV Strength, fracture toughness and microstructure of a selection of all-ceramic materials.
[6] Wirwicki M., Topoliński T.: Zirconium dioxide as a biomaterial; the icrostructure, Journal of Polish Cimac, Vol 7, No 3: 369 – 372 [7] Scherrer S., Cattani-Lorente M., Vittecoq E., Mestral F., Griggs J., Wiskott A.: Fatigue behaviour in water of Y-TZP zirconia ceramics after abrasion with 30 μm silica-coated alumina particles; Dental materials 2011 Vol. 27, pp 28-42 [8] Studart A., Filser F., Kocher P., Lüthy H., Gauckler J.: Cyclic fatigue in water of veneer-framework composites for all-ceramic dental bridges; Dental materials 2007 Vol. 23, pp 177-185 [9] Studart A., Filser F., Kocher P., Gauckler J.: Fatigue of zirconia under cyclic loading water and its implications for the design of dental bridges; Dental materials 2007 Vol. 23, pp 106-114 [10] Studart A., Filser F., Kocher P., Gauckler J.: In vitro lifetime of dental ceramics under cyclic loading in water; Biomaterials 2007, No 28, pp 2695-2705

Research on the Long-Lasting and Remelting Properties of Nd Modification Effect on Cast Al-Mg2Si Metal Matrix Composite Yi Si1,a and Kevluzov D.S.2 1Department of Applied Chemistry, Liaoning Petrochemical Vocational and Technology College, Jinzhou, China 2Department of Materials Science, Urgench State University, Urgench City, Uzbekistan ayisi67218917@126.com Keywords: Nd modification, Al-Mg2Si, long-lasting and remelting properties.
The long-term effect of Nd on the modification of composite materials was studied, and the melt was respectively kept warm for 10min, 60min and 300min.
The remelting effect of Nd on the modification of materials was studied.
After the materials were melted, they were poured into the preheated metal mould again.
Journal of Alloys and Compounds, 2008, 453(1-2): 320–324

Experimental Section Materials.
IEEE Trans. on Plasma Science 1998, 26, 5
Journal of Molecular Catalysis A: Chemical 2002, 189, 241-250
Applied Clay Science 2002, 21, 129
Chemical Engineering Science 2001, 56, 3787.

Acknowledgments The authors appreciate the support of the Natural Science Foundation of China (NSFC) (No.51168044).
On Fractal Gradation of Aggregates.Journal of Chongqing Jiaotong Institute.14(1995)38-43
Journal of China & Foreign Highway.2013 [4] Industry Standards of the People's Republic of China.
Road Constructional Materials, People’s Communications Publishing House, Beijing, 2007
Research on Gradation Examination Method of Asphalt Mixtures Based on Fractal,Theory.Journal of Shenyang Jianzhu University(Natural Science).26(2010), 875-880.

Nowadays, there are approximately 5 main parameters including angle of nozzle, distance between nozzle and material, media size, media type and pressure of FSP. [5] Materials and Methods In this research, SUS316L, Ti6Al4V and Ti6Al7Nb were selected due to the reasons that these materials are currently used in the medical devices and are biocompatible.
Materials were produced by cold rolling method with approximate 2 mm. thickness and prepared by being polished with sand paper number 1500.
Silica was used due to its biocompatibility and hardness which is higher than those of 3 base materials.
The dimple structure on surface can be confirmed by the increase of roughness of materials after FSP.
This can be described that since a value of contact surface of materials got affected by making a smooth surface with small dimples.

Introduction Tube hydroforming is a new technology of materials plastic forming; the forming principle is by combination of internal pressure and axial feeding pile the tube blank into mold cavity and thereby achieves the part.
The constitutive relation of material is: (1) σ is the equivalent stress of material; the strength coefficient of material K=1426 MPa; the strain hardening exponent of material n=0.502; ε is the equivalent strain of material.
Acknowledgements This work was supported by the High-end CNC Machine Tools and Basic Manufacturing Equipment Special Major Science and Technology Project (Grant No. 2011ZX04001-011) and Industry Project of Qiqihar City (Grant No.
Journal of Material Processing Technology. 71 (1997) 174-186
The development and Application of Material. 13 (1998) 20-23.

According to the Educational Resources Construction Technical Specifications, digital teaching resources include eleven categories such as media materials, PPTs, exercises database, test papers, courseware, cases, literature, FAQ, resources directory indices, online course packs, etc.
Model curriculum can serve as materials for online curriculum and its application shall be strengthened in online education.
How a teacher collects and makes use of the aiding materials for teaching and how students choose and obtain useful online learning resources have become the typical questions that the teacher ought to consider in online education.
For example, accordingly print and hand out some rough teaching materials and online course materials; make multimedia teaching materials of different levels and types and organize the project training to promote the multimedia teaching materials making and application; invite experts to hold seminars and organize the exchanges among teachers of different subjects; pick out a certain number of elite teachers form each department, hold the pilot experiments and teaching methods research for mixed teaching strategies each semester and summarize the experiences from the practice so as to promote the teaching methods reform and innovation ability fostering and spread them to other colleges.
Journal of Central China University of Science and Technology.

The high surface temperature caused by aerodynamic heating will change the physical properties of materials.
And the material of the wing is 2D C/SiC.
Before carrying out the structural heat conduction analysis, the thermal characteristics of materials are studied.
Acknowledgments This work was supported by National Natural Science Foundation of China under the Grant number of 61273153.
Journal of Beijing University of Aeronautics and Astronautics. 2005, 31(3): 270-273.