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Test Analysis on Flow Field of Exhaust Hood in Commercial Kitchen Dahua Jiang 1,2,a Angui Li 1,b Faen Shi2,c Yujiao Zhao 1,d 1 Xi’an University of Architecture and Technology,Xi’an,710055,China 2 Jiangxi University of Science and Technology,Ganzhou,341000,China adahuajustanyue@126.com, bvisitli@yahoo.com.cn cshifaen@163.com, dzhaoyujiaobaobao@163.com Key words：Oil fume, Steam, Exhaust hood, Flow field, Commercial kitchen Abstract.
These harmful material is various, high concentration, high toxicity [3,4].
Environmental Science & Technology,2009,32(9):152-155,159
Journal of Jiangxi University of Science and Technology,2010,31(5):12-15
Numerical Simulation of IAQ under Up-suction Exhaust Hood in Commercial Kitchen[J].Advanced Materials Research Vols. 250-253 (2011) pp 3228-3231

The Research of Variable Speed Constant Frequency Wind Power Generation Technology Yuan FEIa, Quan LIUb, Yong CHENc School of Electromechanical Engineering, Beijing Information Science and Technology University, Haidian District, Beijing 100192, China a125008982@qq.com, bbjgs2000@163.com cchenyong_jz@126.com Keywords: Wind power; Unit capacity; Power regulation; Variable speed operation; Tip speed ratio; Wind energy utilization coefficient Abstract.
Wind power generation technology Wind power technology is the aerodynamics, electrical machinery, materials science, mechanical transmission, automatic control, power electronics technology and other multi-disciplinary comprehensive technology.
Large wind power generators to large capacity, good power quality, improve material utilization, reduce noise, reduce cost and improve efficiency of direction[2].
Acknowledgements The research work was supported by ：the Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions，（CIT&TCD20130328） Science and technology achievements transformation and industrialization project of Beijing Education Commission in 2013.And Beijing municipal education commission research base construction projects (PXM2013_014224_000005).
References [1] JinMei SONG,Bo WANG,HaiBo XIAO Chinese and foreign commonly used wind power technology, and the wind motor overview [J]Electrical technology2009 [2] XiaoShan ZHANG，QiangHui XIAO Wind power generation system and simulation [J]Journal of hunan university of technology2013 [3] Rolf Hoffman.

Experimental Materials Silk yarn, 5.56 tex; silk yarn,11.11 tex(Chongqing Jingfeng silk company); natural bamboo yarn. 27.78 tex; natural bamboo yarn, 20.83 tex; bamboo pulp yarn, 14.30 tex(Suzhou Sengzhu home textile company).
Acknowledgements This study was supported by Chongqing science fund (CST C.2010AC3005)，Chongqing science fund(CSTC.2010AA1002).
References [1] Hoi-Yan Cheung，Kin-Tak Laua, Xiao-Ming Taob and David Hui，A potential material for tissue engineering: Silkworm silk/PLA biocomposite[J]，Composites Part B: Engineering,2008,39(6)，1026-1033 [2] Seema Agarwal, Joachim H.
Study on bamboo fiber fabric performance[J], Shanghai textile science and technology[in Chinese], 2009,37(1), 46-48
Dyeing of bamboo fibers[J], Journal of Textile Research[in Chinese], 2008,29(10),70-77

This paper uses the small punch test (SPT) to some performance of the materials, have put forward basic method to test the material tensile mechanics performance from an inverse FE method with SPT.
One is made of homogeneous materials, such as AL alloy 6063.
Another is made of inhomogeneous materials such as a sheet butt joints welded by TIG.
Pandey: An inverse finite element procedure for the determination of constitutive tensile behavior of materials using miniature specimen, Computational material science �–“UG31 (2004), p. 84 [3] B.
Keum: evaluation of the mechanical properties of welded metal in tailored steel sheet welded by co2 laser, Journal of materials processing technology Vol. 113 (2004), p. 692 Fig. 5.

Introduction Welding or joining of dissimilar material is difficult and have limitations because physical properties of each material like melting temperature, heat expansion coefficient, conductivity, yielding point, etc.
Experimental procedure Materials.
Aluminum alloys used are A1100 and A5052(2.52% Mg) of both 1mm and 2mm thick and the combinations of materials used are given in Table 1.
Combinations of materials, material thickness and weld metal SPCC 1.0t A1100 A5052 Experiment methods and details.
[2] Sun Z. et al: Journal of Materials Science Letters, Vol.13, No.13(1994), P980

Failure Analysis on Natural Gas Transmitting Pipe Based on the Data of Intelligent Inspection Meibao Chen1,a,Yurong Jiang 2,b, Zhiyong Cai1,c and Chunbi Xu2,d 1 School of Safety Engineering, Chongqing University of Science & Technology, Chongqing 401331, China 2 School of Petroleum Engineering, Chongqing University of Science & Technology, Chongqing 401331, China a52053922@qq.com, bjjcc540@163.com, c425147823@qq.com, d775029497@qq.com Keywords: failure analysis, pipeline steel, crack, intelligent inspection, microstructure Abstract.
The results shown that the bad working condition and the random overload are the main external causes, the low strain energy of the pipe materials on the binding sites are the main internal causes.
(in Chinese) [5] Meibao Chen and Rong Wang: Materials for Mechanical Engineering Vol.28 (2004),p.18 (in Chinese) [6] Meibao Chen and Yurong Jiang: Advanced Materials Research Vol.284-286(2011), p.1148 [7] Yong Zhong, Yiyin Shan, Furen Xiao, et al.: Material Letters Vol.59 (2005), p.1780 [8] Xiulin Zheng : Int.
Fatigue Vol.23(2001), p.751 [9] Meibao Chen and Yurong Jiang: Progress in Safety Science and Technology Vol.
VII(2008), p.1919 [10] Meibao Chen and Yurong Jiang: Advanced Materials Research Vol.311-313(2011), p.841 [11] Ahmed T M, Lambert S B, Sutherby R, et al: Corrosion Vol. 53(1997),p.581 [12] Jack T R, Erno B, Krist K, et al: Corrosion Vol. 3(2000),p.362 [13] Mingxing Li, Fengxia Yan, Minxu Lu: Journal of Mechanical Strength Vol. 26(2004),p.313(in Chinese) [14] Rong Wang: Materials for Mechanical Engineering Vol.28 (2004),p.10 (in Chinese)

Therefore, the fluorescence spectra of different materials have different strength and shape under the same condition of stimulation.
Fluorescence measurement is a deterministic process of performing qualitative and quantitative analysis on fluorescent materials according to Lambert-Beer's law.
The material tested emits fluorescence after receiving radiation.
Fig.3 Working curve of diesel oil Acknowledgment This paper is supported by the National Science Foundation Under Grant (60974115), the Hebei Science Foundation Under Grant (F2010001312), and the Ministry of Education Science and Technology Key Projects Under Grant (210025).
References [1] Shuqing Zhang, Luan Yun and Xin Li: Chinese Journal of Scientific Instrument vol. 23(2002), p. 613-614,in Chinese

Ivanov 1,a 1 Institute of Strength Physics and Materials Science, SB RAS, 634021, pr.
Grabovetskaya, et al: Grain boundary diffusion and properties of nanostructured materials (Cambridge International Science Publishing, UK 2007)
Ivanov, et al.: International journal of refractory metals and hard materials Vol. 21 (2003), p. 69 [5] V.A.
Nuclear Materials Vols. 307-311 (2002), p. 701 [8] Q.
Humphreys: Journal of materials science Vol. 36 (2001), p. 3833 [12] M.V.

Materials and Methods Contact angle measurement.
Chinese Science Bulletin, 2011, 56: 1241–1245
Chinese Science Bulletin, 2010, 55: 1589-1594
Chinese Science Bulletin , 2008,53:2704-2709
Chinese Science Bulletin, 2010, 17: 1744–1746

With the development of science and technology, the ink-jet printing is developing in full swing in the emerging industry.
Fig.7 3D ink-jet 2) System trimming evolution line: The original heating resistance and liquid channel are trimmed; the jet chamber is designed as an internal channel that can store the ink and provide the ink passage; its material is modified that has the deformation (it is similar to the heating resistance).
That is, after the trimming, not only the jet chamber has achieved the triple functions, but also the components are reduced, making the whole product becomes simple. 3) Geometrical evolution line: The ink-jet head can achieve 3D ink-jet effect, as the figure 7 shows. 4) Object segmentation evolution line: With the development of technology, the material will become diversity.
Acknowledgement This study is supported by National Science and Technology Support Program (2012BAF13B05) and Printing Equipment Inspection and Innovation Design Team of Beijing Institute of Graphic Communication (23190112094) and Institute Level Key Projects Funded by Beijing Institute of Graphic Communication (No. 23190112029).
References [1] TAN Run-hua: Innovation design —TRIZ: theory of inventive problem solving(China Machine Press, Beijing 2002) [2] ALTSHULLER G S: Creativity as an exact science: the theory of the solution of inventive problems (Gordon and Breach Science Publishers, Philadelphia 1984) [3] Nikolay Shpakovsky: Evolution tree---Analysis of technical information and generation of new ideas (China Science and Technology Press, Beijing 2006) [4] ZHAO Hao-yu, JIANG Tao, LI Ying-li, ZHAO Ming: Chinese Journal of Engineering Design Vol. 19 (2012), p.75 [5] LIU Yi-xiong: Print Today Vol. 5 (2007), p.36 [6] PU Jia-ling: Print Today Vol. 2 (2005), p.3 [7] SUN Wei-jun: Design and Fabrication of a Thermal Printer Head Based on Carbon Nanotubes (MS, Huazhong University of Science &Technology, China 2009)