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A New Electromechanical Coupling Model for Piezoelectric Actuator Zenghui ZHAO a, Yuping WANG b, Xiangdong ZHAO c, Yikun YUAN d College of Science of Shan Dong University of Science and Technology, Qingdao, Shandong, 266510, China a qzzh2004@163.com, bwyp1618@163.com,czhaoxd5@sina.com,d yyk@163.com Keywords: ultrasonic motor, piezoelectric actuator, electro-mechanical coupling model Abstract.
Introduction As the development of intellectual material in vibration active control, piezoelectric material has been widely used in intellectual structure due to its special electromechanical coupling effect, so the piezoelectric composite structural which excited by induced strain has been pay extensive attention[1].As the typical intellectual structure, ultrasonic motor is a new-type electrical motor which was gradually developed after the nineties and it is a brand-new research area for inter-discipline refers to dynamics, material science, control technology and multidisciplinary simulation, etc.
As the heart part of USM for transduction, the dynamic characteristics of piezoelectric vibrator centralized represent the effects of material behavior, structure mode and driving circuit on the motor performance.
Acknowledgements： This paper is supported by Shandong Province Natural Science Foundation（No.Y2006F36） References [1] C.S.
Faure: Ultrasonics Vol. 43(2005), p. 747-755 [4] Jong-Seok Rho,Chang-Hwan Lee, Hyun-Kyo Jung: Journal of Applied Electromagnetics and Mechanics Vol.25,No.4 (2007),p.699-704 [5] W.

Studies on alkali lignin degradation by phomolybdic acid using ultrasonic method Fangdan Yu2,Yuanru Guo2,Qingjiang Pan1* 1Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China 2 College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China a panqj@yahoo.com.cn Keywords: Phosphomolybdic acid, Alkali lignin, Degradation, Active functional groups.
Acknowledgments This work is the Natural Science Foundation of China (No. 30901136, 20703015), the New Teacher Foundation of Education Ministry of China (No. 200802251002), the Youth Science Foundation of Heilongjiang Province of China (No.
Reiner: Journal of Molecular Catalysis A: Chemical, Vol. 116(1997), p. 59-84 [5] D.V.

Parent material is the weathering products of the Mesozoic Jurassic Suining thick mudstone and shale.
Materials and methods Experimental Design The soil is neutral red brown purple clay soil which exists widely in the southwest China.
References： [1] Wang Hui-jie, Feng Rui-yun, Zhang Zhi-jun.Effect of Different Organic Mulches to Soil Water Evaporation[J].Journal of Shanxi Agricultural Sciences, 2009, 37(6):42-44, 49
[2] He Xi, Wei Wusi, Sun Rongguo.Effect of Straw-bentonite-PAM Improved Material on Saturated Water Content in Sandy Soil[J].Chinese Agricultural Science Bulletin, 2012, 28(09):75-79
Guangdong Forestry Science and Technology, 2012, 29(4):74-78.

References [1] Songjie Gong, Liping Zeng, The Solution of Safety of Electronic Cash in E-Commerce under Cloud Computing Environment, Advanced Materials Research, Vol. 989, pp: 4314-4317, 2014
Riedl, Recommender systems for large-scale e-commerce: Scalableneighborhood formation using clustering, Proceedings of the Fifth International Conference on Computer andInformation Technology, 2002 [3] Songjie Gong, Research on the Growth Mechanism of High-Skilled System in Computer Science and Technology, Applied Mechanics and Materials, Vol. 513, pp: 2748-2751, 2014
Kelleher, Experiments in sparsity reduction: Using clustering in collaborative recommenders, in Procs. of the Thirteenth Irish Conference on Artificial Intelligence and Cognitive Science, pp. 144–149.
[5] Songjie Gong, A Collaborative Filtering Recommendation Algorithm Based on Trust Network and Trust Factor, Journal of Convergence Information Technology, Vol. 8, No. 5, pp. 1111 ~ 1118, 2013.03
In Proceedings of the IEEE ICDM Conference. 2005 [7] Songjie Gong, Research on Attack on Collaborative Filtering Recommendation Systems, AISS: Advances in Information Sciences and Service Sciences, Vol. 5, No. 10, pp. 938 ~ 946, 2013.05

In this paper, we aimed at purifying the single target component, the residues after extracting glycyrrhizic acid were used as raw materials to separate Liquiritin, which can not only improve the utilization of the licorice resources, but also reduce environmental pollution.
In order to better understand the characteristics of the raw materials, especially the nearby impurities of Liquiritin, different UV absorption wavelength was firstly selected.
Fig.1 is the chromatograms of the raw materials determined at different wavelengths.
* This work is partially supported by the Liaonning Provincial Natural Science Foundation of China (No. 20102002).
Journal of chromatography A, vol. 1145, pp 190-194,2007.

SPD has a number of useful properties such as production of non-porous dense materials free of contamination and, in addition to the MS procedure; it improves the functional properties of hard magnetic materials [4].
Partial replacement of Nd and Fe with Ho and Co improved the temperature stability of the Nd2Fe14B-based materials [4].
Herbst, R2Fe14B materials: Intrinsic properties and technological aspects, Rev.
Kronmüller, S.Parkin (Eds.), Handbook of Magnetism and Advanced Magnetic Materials, Hoboken, NJ: John Wiley & Sons.
Zhukov (Ed.), Novel functional magnetic materials, Springer International Publishing AG, (2016), pp. 359-395

Generally, PPD is made from polymer materials with a mixture of organic solvents [7].
Material and Methods Materials.
Journal of Dispersion Science and Technology, 36(2), 213-225. https://doi.org/10.1080/01932691.2014.901917
Journal of Applied Sciences and Environmental Management, 27(2), 237-242. https://doi.org/10.4314/jasem.v27i2.8
In IOP Conference Series: Materials Science and Engineering (Vol. 980, No. 1, p. 012057).

Green concrete is a good solution for managing waste materials and using them in practical applications.
Material As per the guidelines code of ACI 318-11 [26], the various properties of the used materials in the concrete mixes were determined.
Tabchouche, Assessment of the PVC Waste Addition Effect on the Concrete Mechanical Performance, Journal of Composite & Advanced Materials/Revue des Composites et des Matériaux Avancés 33(2) (2023)
Yazdi, Waste steel wires modified structural lightweight concrete, Materials Research 17 (2014) 958-966
Lok, Mechanical properties of aramid/carbon hybrid fiber-reinforced concrete, Materials 14(19) (2021) 5881

The physical properties of optical and electro-optical materials are determined by the composition and structure of the material.
Photorefractive Materials and Their Applications 2, Springer, New York, 2007
Efremov, Growth of large LiNbO3(Mg) crystals, Inorganic materials, 49 (2013) 288-295
Efremov, Growth of heavily doped LiNbO3(Zn) crystals, Inorganic materials, 51 (2015) 375-379
Advanced Materials – Manufacturing, Physics, Mechanics and Applications, Ivan A.

Matter S1 can be controlled particles, materials, objects or process, while matter S2 is tools or object of controlling S1 with field F which is energy of interaction between S1 and S2 such as mechanical, hydraulic, electromagnetic energy etc.
That waits for further development of natural science or technology.
Study of Process of Product Design Based on the Technology Evolution [J]; Journal of Mechanical Engineering.2002 Vol:12
Journal of Beijing Union University.2005 Vol:02 [5] Yigui Dai, Fengzhang Pan, Xiubing Jing.
The Science Publishing Company,2004