Search results

Research on Quartz Flat Mirror’s Thermal Deformation under the Condition of Non Uniform Heating Suian Dai1,a,Shengli Chang1,b,Yong Lan1,Jianfeng Luo1,Fei Wang1 1College of Science, National University of Defense Technology Changsha，Hunan，China adaisuian@163.com，bslchang@nudt.edu.cn Key Words: thermal deformation, finite element model, non uniform heating Abstract:The optical system used in aerospace works under a very difficult aerospace condition.
Fig.2 The gridding partition of the optical component The parameter of the material of the planar mirror is shown in the following table.
Material Coefficient of conduction(KC/m×h×℃) Young coefficient（Kg/cm2） Poisson ratio Coefficient of linear expandation(1´10-7） Quartz 1.19 778´103 0.17 5.10 The boundary condition of the stable heat-exchange analysis: the room temperature is 20℃.
Aerospace journals, 2010, 31 (3): 875-879 [2] Liu Haibo, Hao Yuncai, et al.
China Science E series: Technical Science, 2009, 39 (10): 1730-1735 [6] Juergens, R.C. & Coronato, P.A.

Table 1 Mechanical properties of X22CrMoV12-1-5 material σb [Mpa] σ0.2 [Mpa] δs [%] Ψ [%] A kv [J] HB X22 796-811 943-950 16-17.4 49.7 22 295 Table 2 Chemical composition of X22CrMoV12-1-5 material C Si Mn S P Cr Ni Mo V Fe X22 0.21 0.11 0.61 0.002 0.014 11.65 0.69 0.99 0.31 Bal.
Acknowledgments The work is supported by National Natural Science Foundation of China (No. 51405294), Postdoctoral Research Foundation of Shanghai Jiao Tong University (14X100030001), China Postdoctoral Science Foundation (2014M560331) and Important National Science & Technology Specific Projects (2012ZX04012-021).
Journal of Xi'an Jiao Tong University, 2013, 47 (9), 65-71

Experimental Materials Pyrite (Pyr) and marmatite(Mar) were obtained from Yunnan province, China.
Acknowledgments The authors appreciate the support of the Science and Technology Department of Guangxi Natural Science-based project (0991082) and the National Natural Science Foundation of China (50864001).
[5] Jianfeng Zhang, Yuehua Hu, Jing Xu and Dianzuo Wang: Quantum chemical calculation on properties of phenoxy acetic acids depressants, The Chinese Journal of NonferronsMefals, Vol. 14(8)(2004), p.1437-1441.

, Shaojun Wang2, c, Mingfen Niu2, d and Di Zhang2, e 1Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China 2School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China amicroyan76@126.com, bshiyi@iae.ac.cn, cjiaojiaoboycom@126.com, dniumingfen@sina.com, ezhangdihj@126.com Keywords: Pig manure; Pig slurry; Accumulation of soil NH4+-N and NO3--N; Large-scale pig farm Abstract.
Materials and Methods Study Site.
Dang: Livestock Science Vol. 112 (2007), p. 288-297 [4] V.
Luo: Chinese Journal of Applied Ecology Vol. 15 (2004), 2179-2183 [10] Z.
Jongbloed: Livestock Science Vol. 121 (2009), 267-274 [17] T.H.

Acknowledgements We would like to thank the National Science Council, Taiwan, Republic of China for financial support.
AppliedSurface Science, 2002, 197-198,891
Journal of materials science, 2000, 35,547

Table3 Inhibition experiment results Pharmacy Material kg/m3 G Corrision speed mm/a blank HSn70-1A 8.5×103 0.00205 0.01048 TP304 7.93×103 0.00235 0.012877 TP316 7.98×103 0.00255 0.013885 HPP3 HSn70-1A 8.5×103 0.00095 0.004856 TP304 7.93×103 0.00075 0.00411 TP316 7.98×103 0.00085 0.00462 As can be seen from the results of corrosion tests: When the temperature was 40±1 ℃, tin brass HSn70-1A on the corrosion rate decreased by 54%, TP304 corrosion rate decreased by 68 %.
The average corrosion rate F.The average corrosion rate F (mm / a) is calculated as follows C=8.76×107; —The corrosion weight loss test piece, g; A—The surface area of the test piece,cm2;T—Corrosion Test time,hr; —Specimen material density,kg/m3 The result showed that Tin brass HSn-701A average corrosion rate was 0.0046mm/a, meet the industrial circulating cooling water treatment design specifications (GB50050-2007) requirements.
[2] Zhao Xiaodan. " Reclaimed water reuse in power plant circulating cooling water technology", Journal of Shanghai University of Electric Power, 2010,Vol,26, pp.141-144
[4] Long Yunhe.circulating cooling water treatment,Jiangsu Science and Technology press[M],2001
[6] He Wei,Chen Jida.Experimental design optimization method and its application in chemistry[M], Chengdu University of Electronic Science and Technology Publishing House press, 1994

Geo-visualization of agricultural products price data based on WebGIS Peng Cheng1, 2, 3, a, Wu Huarui1, 2, 3, b, Shi Xiaoxia4, Qin Xiangyang1 1Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China 2National Engineering Research Center for Information Technology in Agriculture, Beijing, 100097, China 3Key Laboratory for Information Technologies in Agriculture, the Ministry of Agriculture, Beijing, 100097, China 4School of Logistics, Beijing Wuzi Universtiy, Beijing, 101149, China aemail: pengc@nercita.org.cn, bemail: wuhr@nercita.org.cn Keywords: agricultural products price, WebGIS, geo-visualization, rich internet application, Baidu Map, flex Abstract.
Materials and data processing Agricultural products’ price data was crawled and acquired from authoritative agricultural websites on the Internet, including China Agricultural Information Network authorized Ministry of Agriculture, Baijia agricultural product market information service platform authorized Ministry of Commerce, Jinnong Website and so on.
Acknowledgement In this paper, the research was sponsored by the National Technology R&D Program(2011BAD21B02) and Beijing Municipal Natural Science Foundation (4122034).
Hefei: the doctor thesis of University of Science and Technology of China, 2010
Journal of Guizhou University, 2011, 28(5): 112-115,119

Sliding-mode control for piezoelectric actuators based on hysteresis observer Qiang Wei1,2,a*, Chao Zhang1,b, Dong Zhang2,3,c and Chengjin Zhang4,d 1 School of Physics and Electronic Engineering, Taishan University, Taian, Shandong 271021, China 2 School of Electrical Engineering, Shandong University, Jinan 250061, China 3 School of Automation Engineering, Qingdao Technological University, Qingdao 266033, China 4 School of Control Science and Engineering, Shandong University, Jinan 250061, China ataweiqiang@126.com, btazc@163.com, czhangdong_dong@qq.com, dcjzhang@sdu.edu.cn Keywords: piezoelectric actuators, hysteresis compensation, sliding-mode control, state observer Abstract: A sliding-mode control(SMC) scheme based on hysteresis observer is designed in this paper for precision trajectory tracking of piezoelectric actuators.
Since the materials of PEAs are generally ferroelectric, nonlinear hysteresis behavior in response to the applied electric field strength is always present.
BS2011DX037), the Research Foundation of Science and Technology of Taian City (No. 20102026), the Special Funds for Postdoctoral Innovative Projects of Shandong Province (No. 201203055) and the National Natural Science Foundation of China (No. 61174044).
Midha, A loop closure theory for the analysis and synthesis of compliant mechanisms, Journal of Mechanical Design, 118 (1996), p121-125

Novel Rice Gel for Ultrasound Applications: Physical and Chemical Properties Sittiporn Punyanitya1,a*, Rungsarit Koonawoot1,b, Sakdiphon Thiansem2,c and Warangkul Punyanitya3,d 1Science and Technology Research Institute, Chiang Mai University, Chiang Mai, 50200, Thailand 2Department of Industrials Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand 3Punyanitya Medical Instrument, 19/44, Singharaj Road, Tumbol Sriphum, Amphur Muangchiangmai, 50200, Thailand apunyanitya.s@gmail.com, bkoonawoot@yahoo.com, csukdipown@hotmail.com, dmariachi_rino@hotmail.com Keywords: Ultrasound, Gelatinization, Rice starch, irritation, Ultrasound gel, Water soluble Abstract.
Materials and Methods Sample Preparation.
Acknowledgements The authors acknowledge the financial support given by Research Administration Center, Office of the University, Chiang Mai University and Department of Industrial Chemistry, Faculty of Science, Chiang Mai University for research workplace.
Gharbi (Eds.), Manual of Diagnostic Ultrasound in Infectious Tropical Diseases, Springer Science & Business Media, Newyork, 2006, pp. 1-19
Pethdumrongsakul, A comparative study between new formulated and commercial ultrasound gel at Queen Sirikit National Institute of Child Health, Thai Pediatric Journal. 16(3) (2009) 147-151

Performance Properties of GFRP Dowels in Concrete Pavement Joints Li Yunliang1,2,a, Li Luoke1,b ,Tan Yiqiu1,Xue Zhongjun3 1School of Transportation Science and Engineering, Harbin Institute of Technology,Harbin 150090, P.R.China 2Post-doctoral Research Center in Civil Engineering, Harbin Institute of Technology,Harbin 150090, P.R.China 3Road Administration of Beijing Municipal Commission of Transport, Beijing 100053, P.R.China aliyl-hit@163.com, bllk217@126.com Keywords: GFRP dowels, Maximum shear forces, test, cyclic load Abstract: Dowels are used in jointed plain concrete pavements to provide lateral load transfer across transverse joint through shear force, effective load transfer at lateral joints can reduces stresses in the slabs.
Table 1 Structure and material parameters for pavement Layer Dimension（m） Elastic Modulus（Mpa） Poisson’s Ratio Density (Kg/m3) Concrete slab 5×4.5×0.26 30000 0.15 2400 Base 11.1×5.5×0.2 800 0.3 2000 Subgrade 11.1×5.5×2 150 0.35 2100 Steel bar Φ0.032 210000 0.3 7800 GFRP bar Φ0.032 30000 0.28 2600 The 3D finite element model in this study consists of two concrete slabs supported by base and subgrade as illustrated in Figure 1.
A total of 15 dowels were included in this model with the spacing of 30cm.Two dowel material variation, created with steel and CFRP.
Acknowledgments Research support by the National Natural Science Foundation of China (No: 50808058, No:51078114) and Science and Technology Program of Heilongjiang Province (No: 2010T0013-00) is gratefully acknowledged.
ACI Structural Journal, Vol. 98, No. 2, pp. 201-206, March 2001