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Design variables involve continuous variables (dimensions of the transducer) and discrete variables (material types).
(2) Table 1 Parameters that affect the performance of the transducer U: Input voltage Lb: Length of back blocks Lf1: Length of the first part of horns Lf2: Length of the second part of horns Dt: Outer diameter of back blocks, input end of horns and piezo-rings Dt2: Outer diameter of the output end of horns hp: Thickness of piezoelectric rings Di: Inner diameter of piezo-rings and outer diameter of bolts Lbt: Length of bolts N: Number of piezoelectric disks or rings Typb: Material of back blocks Typf: Material of horns Typp: Material of piezo-rings where the underline characterizes complex quantities.
The matrix elements aijPT(i,j=1,2,3) are functions of the material parameters, dimensional parameters and the vibration frequency Ω of the transducer.
Liu: Materials Chemistry and Physics, Vol. 75 (2003), p. 95 [2] T.
Wiseb: International Journal of Machine Tools and Manufacture, Vol. 38 (1998 ), p.239 [3] K.

Experimental Procedures Materials.
Materials As-cast As-extruded Pure AZ31 0.1vol.
Journal of Alloys and Compounds 551 (2013) 496–501
Materials Science and Engineering A 527 (2010) 4103–4108
Materials and Design 45 (2013) 15–23

Microstructure and Performance Analysis of Cr3C2-25%NiCr Coating Prepared by Plasma Spraying Process Can-ming WANG 1,a, Hong-fei SUN1,b and Qiang SONG1,c 1 School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, China a wangcanming@sdust.edu.cn, bsun@sdust.edu.cn, cxiaoao7730@yahoo.com.cn Keywords: Plasma spraying; Cr3C2-NiCr; Ceramic compound Coating; Wear resistance Abstract.
There are two kinds of force between abrasive material and the surface of the sample.
These hard ceramic particles in the coating are good wear resistance materials.
Harris: Materials Science and Technology Vol. 19 (2003), p. 1003 [3] A.
NEVILLE, T.HODGKIESS: British Corrosion Journal Vol. 34 (1999), p. 265 [4] T.

The transition to lead-free materials within the electronics industry has raised the question of solder joint reliability for automotive applications.
Components of different type and size were soldered to a ceramic-filled FR4 substrate using different solder materials.
The diverse substitute materials have to withstand the harsh environmental loading conditions found in automotive applications.
Electron Backscatter Diffraction as a method that is not yet being widely used for research of material properties in electronic sciences offers the possibility for quantitative microstructural evaluation for as-soldered and aged specimens.
Detert (2005), ISBN 3-934142-52-4 [4] Bundesministerium für Bildung und Forschung: Abschlussbericht BMBF-Verbundprojekt: Umweltgerechte Systemlösung für die Anwendung von innovativen Weichloten für hochbeanspruchte Elektronikbaugruppen - InnoLot (2004) [5] Telang, A.U.: JOM The journal of Minerals, Metals and Materials Society Vol. 57 (2005), p. 44

Bamboo could be widely used for musical instruments, furniture, flooring, house structure, building, packaging materials, construction materials, pulp and other fields for useful short cycle, high yield, stem form, straight and dense material [1-3].
In order to evaluate its thermal aging properties, the volatile organic compounds of engineering smoked bamboo biomaterial were adsorbed and determined by TD-GC-MS Materials and Methods Materials and Methods.
Construction and Building Materials Vol.20(2006),p.648–656 [2] ZH.
Key Engineering Materials Journal,in press
Journal of Agricultural Science Yanbian University, Vol.26(2004),p.50-53

One of the practical solutions to this problem is the use of corrosion inhibitors which are extensively employed in minimizing metallic waste in engineering materials [2].
Hanson, Corrosion and Materials Challenges for Deep Water Oil and Gas Production, Deep Water Technology Symposium, Houston, Texas (1997)
[9] Ullah S, Ahmad F, Megat-Yusoff PSM, Effect of Boric Acid with Kaolin Clay on Thermal Degradation of Intumescent Fire Retardant Coating, Journal of Applied Sciences. 11(21) (2011) 3645-3649
[11] Sagir M, Tan IM, Mushtaq M, Ismail L, Nadeem M, Azam MR, Synthesis of a New CO2 Philic Surfactant for Enhanced Oil Recovery Applications, Journal of Dispersion Science and Technology, (2013) 647-654
Materials Chemistry and Physics. 2003;77(3):687-690

Based on discriminant function in Table 2, graded history materials are checked, the fitting rate is separately 95.24%, 92.31% and 100%.
Shifei Ding, School of Computer Science and Technology, China University of Mining and Technology, for his constructive advice.
Chen: Forecasting Population Dynamics of Pest By Statistic Discriminant Principle, Chinese Journal of Applied Probability and Statistics, Vol. 14 (1998), p. 333-335
Fang: Studies on Multi-variable Statistical Analysis (Science Press, Beijing 1982)
Hu: Application of Microsoft Computer to Agricultural Science (Science Press, Beijing, 1987)

Research on Geometric Dimensioning Automatic Detection of Tubular Member Jinjie Yao1, a, Jing Yang1, a , Liming Wang2, b, Yan Han2, b* and Peirui Bai3,c 1National Key Laboratory of Electronic Testing Technology, North University of China, 030051, Taiyuan, China 2Instrumentation science and dynamic testing laboratory of the Ministry of Education, North University of China, 030051, Taiyuan, China 3College of Information & Electrical Engineering, Shandong University of Science and Technology, 266510, Qingdao, China ayyyjinjie@sina.com, bzhong_bei@126.com, cyyyjinjie@yahoo.cn Keywords: Tubular member; Geometric dimensioning; Automatic detection; Roundness error; Precision measurement Abstract: Geometric dimensioning measurement is a very important application in metrology.
Acknowledgements The paper is supported by National Key Laboratory of Electronic Testing Technology Foundation of China under Grant No.9140C120404120C12010 and School youth science fund.
Measurement Science and Technology,2005, 16(3): 833-841
Journal of Materials Processing Technology, 2003, 139(1-3): 90-95
Measurement Science Technology, 2006, 7: 1563-1568

The primary advantages of composite panels compared to conventional materials.
On the other hand the high specific strength and stiffness of reinforced polymer-matrix composite materials have made them attractive for use in sandwich constructions [5] and their environmental durability and corrosion resistance offer superior serviceability in many applications compared to traditional materials [6].
Material and Fabricating Method Eight sandwich configurations are fabricated in Gorgan University of agricultural sciences and natural sources.
Vinson, The behavior of sandwich structures of isotropic and composite materials, Technomic, Lancaster (1999) [3] K.
Chawla, Composite Materials Science and Engineering, Springer verlog, (1987) [4] Brian D Flinn , Fundamentals of composite sandwich panels,University of Washington ,(2009) [5] H.G.

And it is propitious to develop the positive material of lithium battery.
Introduction The cyclability of ion transfer in Li-ion rechargeable batteries depends mainly on the dimensional stability of the host material during insertion and disinsertion of .
is a promising candidate cathode material for Li-ion battery due to its resourcefulness, low toxicity, and easiness of preparation .
Acknowledgements This paper is supported by Educational Commission of Guangxi Province of China (No.201012MS120) and Dr. fund of Guangxi University of Science and Technology(No.1006) References [1] N.
Mohan: Springer-Verlag (1998), p. 8-15 [5] Yi Tingfeng, Wang Dianlong, Gao Kun, Hu Xinguo: JOURNAL OF RARE EARTHS (2005), p.209-213