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For example, Suh [[] Suk-Hwan Suh, Yoonho Seo, So-Min Lee, Tae-Hoon Choi, Gwang-Sik Jeong, Dae-Young Kim: “Modelling and Implementation of Internet-Based Virtual Machine Tools”, The International Journal of Advanced Manufacturing Technology 21, pp.516-522, 2003 ] had modeled and implemented virtual machine tools; Lim [[] Keng-Hui Lim: “Research and Development of an OpenGL-Based Virtual Three-Axis CNC Lecturing Assistance System”, Master Thesis, Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Taiwan, 2006 ] has used OpenGL to construct virtual three-axis milling machine for teaching assistance, as shown in Fig. 1.
Chen: “Development of a Virtual Controller Integrating Virtual and Physical CNC”, the Journal of Material Science Forum, Vol. 505-507, Pt 1, ISSN: 0255-5476, 2005, pp. 631-636, 28 Nov. - 30 Dec. 2005, ISBN 0-87849-990-3, Trans Tech Publications Ltd, Switzerland , [] Yung-Chou Kao and Hsin-Yu Cheng: “A Smart Virtual Vertical Three-axis Machining Center Simulator”, Automation 2009, The 10th International Conference on Automation Technology, June 27-29, 2009, National Cheng-Kung University, Tainan, Taiwan, R.O.C. ], as shown in Fig. 4, micro milling machine [[] Yung-Chou Kao, Cheng-An Fang and Hsin-Yu Cheng: “Development of an Interactive Virtual Micro Milling Machine Teaching Assistance System”, The International Manufacturing Leaders Forum 2006, Taipei, O11-TW-FP126, (in a CD, no page information) ], five-axis milling machine [[] Yung-Chou Kao, Cheng-An Fang, Chang-Yean Wu: “Development on Virtual 5-Axis Milling Machine Tool”, Journal of the Chinese Society of Mechanical Engineers,
Vol. 27, No. 6, pp. 809-816, Dec. 2006, ISSN 0257-9731 (2006) ], and wire-cut machine [[] Yung-Chou Kao, Jo-Peng Tsai, Hsin-Yu Cheng, Chia-Chung Chao: “Development of a Virtual Reality Wire Electrical Discharge Machining System for Operation Training”, 2010 International Journal of Advanced Manufacturing Technology, Online Published, 2010/9/21, DOI 10.1007/s00170-010-2939-1, Springer, 2010 ], as shown in Fig. 5.
Other functions such as lights, shading, smoothing, transparency, materials (textures), fogs, smokes, pixels, and animation with double buffers are supported as well.
The authors appreciate the grant support by the National Science Council under project NSC 100-2221-E-151 -007.

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Materials and Method Acetic acid, ammonia, ferric chloride (FeCl3), and NaOH were purchased in pro analytical grade from Sigma Aldrich, and zinc acetate was purchased in pro analytical grade from Merck.
The crystal phase and morphology of the obtained materials were determined by X-ray diffraction (XRD; Rigaku SmartLab, Japan) and scanning electron microscopy (SEM; Jeol JIB-4610F, Japan).
This indicates the potential use of ZnO derived from waste materials for proper methylene blue degradation.
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Thus an opportunity exists to convert this stored energy into a usable energy source, raw material or special chemicals.
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Acknowledgement This work was supported by national science and technology support plan of China (2011BAF15B02), Hebei provincial natural science fund project (E2012203108), colleges and universities in Hebei province science and technology research project (ZD2014034), open project of national engineering center (NECSR-201206), independent research project for youth scholars of Yanshan university (14LGA003).
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Density of material is 7.8103kg/m3.
Acknowledgement This work is supported by the National Natural Science Foundation of China (Grant No. 50775130), by the Natural Science Foundation of Shandong Province of China (Grant No.
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Acknowledgements This work was financially supported by the National Natural Science Foundation of China (No.50909030 and No.51078112) and the Natural Science Foundation of Guangdong Province, China (No. 9451805707003007).
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A rope and motor are installed in the shading device in order to automatic open or close.when the motor reverses, shading material is closed; Besides, shading material is opened.
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Furthermore, the appearance of low noise engine, high-tech composite materials and radar wave absorbing materials make it stealthy.
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