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The Design of Output Feedback Controller for Inverted Pendulum System HongXing Li 1,a, AnShan Lu 1,b 1College of Physics and Materials Science, Qinzhou University, Qinzhou, Guangxi 535000 China a2005LHX555@163.com , baslu8531@163.com Keywords: Inverted pendulum system, Output feedback, Linear matrix inequality Abstract: Inverted pendulum system is a complex, non-linear and uncertain high-order system.
Journal of Daqing Petroleum Insitute. 2007, 31( 5) : 97- 100
Journal of Henan University of Science and Technology: Natural Science. 2011,36(6):35-41

In IOP Conference Series: Materials Science and Engineering (Vol. 928, No. 7, p. 072069).
Journal of Materials Science: Materials in Electronics, 28(23), 18193-18199
Journal of materials science, 53(6), 4360-4370
Materials science in semiconductor processing, 16(3), 955-962
In Materials Science Forum (Vol. 1039, pp. 260-268).

Xiaochun, An experimental determination of optimum processing parameters for Al/SiC metal matrix composites made using ultrasonic consolidation, Journal of Engineering Materials and Technology, 2007, 129, 538-549
Xiaochun, Study on bulk aluminum matrix nano-composite fabricated by ultrasonic dispersion of nano-sized SiC particles in molten aluminum alloy, Materials Science and Engineering A, 2004, 380, 378-383
Katgerman, Influence of ultrasonic melt treatment on the formation of primary intermetallics and related grain refinement in aluminum alloys, Journal of material science, 2011, 46, 5252–5259
Prokic, The influence of processing parameters on the ultrasonic degassing of molten AlSi9Cu3 aluminium alloy, Materials letters, 2009, 63, 806-808
Xiaochun, Ultrasonic cavitation based manufacturing of bulk Al matrix nanocomposites, Journal of Manufacturing Science and Engineering, 2007, 129, 497-501

Study on the Variation of the Properties with Increasing of the Bending Cycles of Coiled Tubing BI ZongYue1, 2,a, XIAN Lin Yun2,b and Jing XiaoTian1,c 1School of Materials Science and Engineering, Xi’an University of Technology 2Institute of steel pipes, Baoji Petroleum Steel Pipe Co.Ltd, Baoji, Shaanxi, China ashbizy@yahoo.com.cn, bmailxly@yahoo.com.cn, cjingxt@xaut.edu.cn Keywords：Coiled Tubing，Fatigue，Strain hardening exponent , Mechanical Property ABSTRACT：The Variation of the mechanical properties of coiled tubing with increasing of the bending cycles was studied based on the fatigue bending cycle machine.
Chinese Journal of Applied Mechanics. 1999, 16(3):66-70 [7] D.L.
Natural Science journal of xiangtan university .1997, 19(4):31-33 [10] H.
Crack Initiation and propagation of small defect in low alloy steel .Journal of Materials Engineering. 2008(3): 40-43 [11] X.T.Yu,L.C.Zhang,in: Plastic bending theory and its applications, edtied by Science Press ,Beijing (1992) [12] D .X.
The study on the experiment of wall thickness deformation of coreless bended small-diameter tube ,Journal of Plasticity Engineering 2005 12(2) :59-62

Although the propagation of mechanical waves in periodic composite materials is an old topic in condensed matter physics and in acoustics [7], the search for band gaps in PCs increased recently [3–5,8–11].
Results and Discussion Epoxy and Al2O3 are polycrystalline materials, and may be treated as isotropic on macroscopic scale.
These defects could modify the elastic wave propagation in composite materials altering the band structure of them.
Deymier: Surface Science Reports Vol. 65 (2010), p. 229
Hu: Advanced Materials Research Vols. 652–654 (2013), p. 48

However, in practice, the p-n junction characteristics of the solar cell limit the output power, and thus FF usually has a value of around 70~80%, depending on the particular materials used to construct the solar cell device.
Nijs, Solar Energy Materials & Solar Cells Vol.65, (2001), p477 [3] V.Y.
Materials Science: Materials in Electronics, Vol.17, (2006), p.251 [9] K.F.
Materials Science:Materials in Electronics, Vol.16, (2005), p529 [10] W.C.
Yarn, Digest Journal of Nanomaterials and Biostructures, Vol.1, (2006), p11 [11] K.F.

Raw materials This experiment use LiaoHe oilfield AH - 90# road asphalt, which technical indexs see table 1 below.
[2] Zhiming,LittleDN,LyttonRL.Charaeterization of mierodamage and healing of asphalt conerete mixtures.Journal of Materials in Civil Engineering,2002,14(6):461~470
Huazhong University of Science and Technology doctor degree paper.2007.5.
Journal of Materials Science, 2005, 40(1): 87-95.
Journal of Chang′an University(Natural Science Edition).2002.7(4):5-8.

Acknowledgement This research is supported by "High-grade CNC Machine Tools and Basic Manufacturing Equipments" Major Science and Technology Projects of China (Grant No. 2009ZX04014-042), and The Research Fund for the Doctoral Program of Higher Education (Grant No. 20070214004) References [1] ZOU J X: Aerospace Materials &Technology Vol. 01(2004), p 23
European Journal of Scientific Research Vol. 22(2008), p 153-162
[6] Ge Yingfei, Fu Yucan, Xu Jiuhua: Key Engineering Materials Vol. 339(2007), p 6
Journal of Materials Processing Technology Vol. 118(2004), p. 143-150
B: Materials Science and Engineering A Vol. 527(2010), p 2572-2578

Acknowledgements The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 50575045), the Guangdong Natural Science Foundation (No. 07001803), the Doctoral Foundation of Chinese University and the Guangzhou Science & Technology Plan (No. 2005Z3-D0021).
International journal of machine tools & manufacture 42(2002):575-583
Journal of agricultural machine.
International journal of machine tools & manufacture 44(2004):383-390
Journal of Materials Process Technology 149(2004)22-29.

Curing on the other hand, can vary unpredictably depending on different materials, geometry and thermo-dynamical conditions.
Material Science and Engineering, 1–2, pp. 171–176 (2005)
Textile Research Journal, 11, pp. 647–654 (1987)
International Journal of Multiphase Flow, 2, pp. 203–215 (1988)
Journal of Composite Materials, 2, pp. 241–254 (2002)