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Materials and Methods The experiment was carried out in growth chamber of South China Agricultural University during autumn of 2007.
Food Science, (2000) , p. 42-45.
Journal of South China University of Tropical Agriculture Vol.10 (2004), p. 13-16 (in Chinese) [8] H.
Journal of Nanjing Agricultural University Vol. 13(1990), p. 70-74.
Pant Nutrition and Fertilizer Science, Vol. 10(2004), p. 494-498.

Modal testing study on a complicated housing structure based on pre-test analysis, Journal of vibration and shock
The Experimental Modal Analysis and the Application, Science Press, China 2001
[9] Wenha Shen, Senwen Zhang, Changyou Li, Yuhua Cao and Yaoqiang Kang, Research of structural damage detecting parameters based on experimental mode shapes, Journal of Jinan University(Natural Science), 29 (2008) 268-271
Research on COMAC-like Indicator for Bridge Structure's Damage Detection, The World of Building Materials, 32 (2011).

Table 1 Parameters of the specimens Number Span Thickness of profiled sheet Thickness of floor Uniform load Initial deflection Fire duration B-1 3.4m 1mm 136mm 3kN/m2 2.04 mm 40min B-2 3.4m 1mm 136mm 3kN/m2 2.05 mm 0min 1- studs，2- transverse reinforcements on the top flange of the profiled sheet，3- profiled sheet 4- steel plate，5- distributing bars Fig.2 Construction of the test floor Test Materials.
Acknowledgments This work is supported by National Natural Science Foundation of China (Grant No.51078187), the Science and Technology Plan of Zhejiang Province (No.2008C23013) and NSF of Ningbo City ( No.2009A610138).
References [1] Guo-qiang Li, Lin-hai Han and Guo-biao Lou, in: Fire Resistant Design of Steel and Steel-Concrete Composite Structures, edited by China Architecture & Building Press, Peking (2006) (In Chinese) [2] Shouchao Jiang, in: Research on Fire Resistant Theory and Experiment of Steel-Concrete Composite Floor, edited by Doctoral Dissertation, Tongji University (2001) (In Chinese) [3] Xiaodong Li,Yuli Dong and Ligang Chen: Building Technology Vol.35(4)(2004), p.252 (In Chinese) [4] Jinsheng Han,Wen Cheng, Zhaodong Xu and Yuli Dong: Industrial Construction Vol.36(3) (2006), p.87 (In Chinese) [5] Yiou Chen, Maokun Cheng and Jikang Liu: Journal of Building Structures Vol. 19(5) (1998), p.22 [6] Yankun Zhang, Haijiang Jin and Demin Jiang: Journal of North China University of Technology Vol.20(1) ( 2008), p.80 (In Chines) [7] Yankun Zhang, Haijiang Jin.

Experiment Materials.
Acknowledgements This study was supported by the National Natural Science Foundation of China (40972169).
Journal of Chongqing Jianzhu University, Vol.23(1)(2001), p.114-117.
Environmental Science, Vol.16(2)(2003), p.31-34.
JOURNAL OF GEOLOGY, Vol.33(4)(2009), p.403-410.

Item analysis of self-determined learning motivation Item Question CR Corrected Item-Total Correlation 01 I feel like it’s a good way to improve my skills and my understanding of the material. -5.65*** .484** 02 Others might think badly of me if I didn’t. -7.28*** .526** 03 I would feel proud of myself if I did well in the course
Self-determined learning motivation Dimension Item Cronbach’s α Motivation 14 .868 Acknowledgment This research was supported in part by the Taiwan National Science Council (NSC 99-2511-S-254-001-MY3).
,“Beyond the Classroom Walls:Teachers' and Students' Perspectives on How Online Learning Can Meet the Needs of Gifted Students,”Journal of Advanced Academic, vol .21(4), pp.662-712 (2010)
L., “ Internalization of biopsychosocial values by medical students: A test of self-determination theory,”Journal of Personality and Social Psychology, vol. 70, pp.767-779(1996)
L., “ The effects of instructors’ autonomy support and students’ autonomous motivation on learning organic chemistry: A self-determination theory perspective,”Science Education, vol. 84, pp.740-756(2000).

Markings should use reflective materials.
Ackownledgements This work was supported by Research for Shaanxi Provincal Highway Direction Sign System Settings Technology Science Project of Shaanxi Provincal Transport Department (12-29K).
Zheng: Study of Freeway Ramp Control Strategy, edited by Journal of Wuhan University of Technology, Transporation Science and Engineering (2006)
Han: Simulation of Freeway Entrance Ramp Control, edited by China Journal of Highway and Transport (1997)

Materials Transactions, 2004, 45 (12): 3286～3290 [5] YU Qing-Bo, LIU Jun-Xiang, DOU Chen-Xi and HU Xian-Zhong.
Dry Granulation Experiment of Blast Furnace Slag by Rotary Cup Atomizer[J].Journal of Northeastern University(Natural Science),2009,30(8):1163～1165
Experimental Study of Dry Centrifugal Granulation of Molten Blast Slag [J].Science Technology and Engineering.2009,9(30): 7257～7260
[10] DAI Xiao-Tian, QI Yuan-Hong, ZHANG Chun-Xia, XU Hai-Chuan,YAN Ding-Liu and HONG Yi-Cheng Analysis of Blast Furnace Slag Quenching Dry Granulation Process[J].Journal of Iron and Steel Research.2007,19(5): 14～19.

High technologies are applied to the research and development of UAV such as lightweight materials, new designs, advanced signal processing and communication techniques and so on, which greatly increase drone duration, and improve the image transmission speed.
With the continuous progress of science and technology, safety and reliability of the UAV is gradually improved, and it starts to enter the civil market, brings people the convenient and efficient in every field.
Acknowledgements This work was financially supported by science and technology fund of the education department of Hebei Province (QN2014210).
References [1] Liu Rong Ke, Zhang Xiao Lin: A Real-Time Image Transmission Scheme for Pilotless Aircraft (Journal of Beijing University of Aeronautics and Astronautics, China 2002)
[2] Jiang Wen Feng: Digital Video Image Transmission Technology for UAVs (Journal of Telecommunication Engineering, China 2011)

Farhan, Mehdi, A New Approach for Predicting and Optimizing Weld Bead Geometry in GMAW, International Journal of Mechanical Systems Science and Engineering 2:2, 2010, 138-142
Indian Journal of Engineering & Materials Sciences, Volume 14, 2007, 177-183.

Due to its merits of efficient usage of material, no use of moulds or tongs, and the ability of forming parts of any shape, this technology is becoming more and more important in metal manufacturing field [2, 3].
Nan: Journal of Mechanical Engineering, Vol. 45 (2009) No.3, p. 269.
Wu: Materials Science and Technology, Vol. 23(2007) No.6, p.631
Haritos: Journal of Materials Processing Technology, Vol. 149 (2004) No.1, p.604