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The Application of Central Composite Design in Flash Spinning Lei Xia1,2,a，Peng Xi3,4,b，Bowen Cheng1,2,3,c 1School of Textile, Tianjin Polytechnic University, Tianjin 300160, China 2Key Laboratory of Advanced Textile Composites, Ministry of Education of China, Tianjin 300160, China 3Tianjin Multicipal Kay Lab of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160, China 4State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing 100080, China axia1983@163.com, bxipeng@tjpu.edu.cn, cbowen@tjpu.edu.cn Keywords：Flash-spinning; polyethylene; central composite design; respond surface; optimization Abstract：In this paper, ultrahigh molecular weight polyethylene (UHMWPE) superfine fiber was fabricated by flash-spinning method using UHMWPE as the fiber-forming polymer, 1, 2-dichloroethane as the main solvent.
This method can evaluated the interaction of the factors affecting the production process and optimize the various factors in order to obtain the best condition of the production process [6-7]. 1 Experimental materials and method 1.1 Experimental material Ultra-high molecular weight polyethylene: molecular weight 2.4 million, Beijing Second Chemical Company. 1, 2- dichloroethane: Tianjin Kermel Chemical reagent Co., Ltd.
References [1] Ren Yuanlin, Cheng Bowen: Technical Textiles, vol.2 (2006), p.1 [2]Wu weixing, Yuan xiaoyan: journal of Tianjin Polytechnic University.

Linear elastic material, Aluminum Alloy EX=7.0e4MPa, PRXY=0.33，DENSITY=2700kg/m3 is selected.
A infinite element model is built up. 2 Evaluation of mechanical properties and intensity of the material and intensity Because the material of the skirt board is Aluminum-based, a safety coefficient of 1.5is used.
Journal of the China Railway Society 2009.31 (2): 120-124
Effects of natural wind on aerodynamic characteristics of high-speed maglev train[J].China Railway Science, 2007,4:65-7.

Due to running in the high temperature and high pressure environment, the security problems become increasingly severe owing to material aging and high temperature creeping damage which was resulted in pipeline leakage or explosion accidents, so the pipeline security monitoring techniques have received more and more attentions.[1] Currently artificial methods are adopted commonly domestically to do the annual inspection for the monitoring of high temperature pressure pipeline, and it has so many disadvantages, such as need stopping production, low efficiency of detecting and poor level of security.
(2) ci is a parameter related to the material characteristic, geometric characteristic and operating conditions(temperature and stress).
ACKNOWLEGEMENTS This paper was supported by Key program for science and technology development of Zhejiang Province (No.2010C11068) and Natural Foundation of Zhejiang Province of China (No.Y1091078) REFERENCES [1] Li Bing, He Xuehong, Wang Zheng, “Analysis of high temperature pressure pipeline's life prediction models and technical”, Machinofacture, Vol.45, No511, 2007, pp.59-61
[3] Xu Jun, “Feasibility Study on Strain Monitoring of Bridge Structure Based on Fiber Bragg Grating Sensing Technology”, The world of building material, Vol.31, No.2, 2010, pp.99-102
[4] Chen Kang, “The analysis of ID authentication Journal of Zheng De College”, Vol.2 No.1 April 2004, pp.18-22

The bed material, in this case - chopped OPF which was loaded on the top of the distributor will swirl due to angular momentum transfer from the hot air.
Material and Method This section discusses the details of the experimental set-up, preparation of the samples (chopped OPF) for batch experiments, measurement and data collection.
The superficial velocity of air was continuously increased until elutriation of material occurs, indicating the maximum operating velocity of the bed.
B. and Raghavan, V.R., “Experimental Studies on a Swirling Fluidized Bed with Annular Distributor”, Journal of Applied Sciences, Vol. 11, No. 11, pp. 1980 – 1986, 2011

Introduction Zinc oxide (ZnO) is well known in the scientific community to possess a lot of advantages in its nature, making it as one of the most prominent material for a variety of electronic and opto-electronic applications [1].
Ga, Al, and In can be used as n-type dopant in ZnO, have been generally recognized to influence the optical and also the electrical properties of the materials [2].Other elements of rare earth group, i.e.
This work is expected to provide the science and research information necessary towards the realization of the new enhanced functionality devices through the integration of photonic, electronic and magnetic properties in a single device that will be beneficial for spin light-emitting diodes (LEDs), novel microprocesses and sensitive biological and chemical sensors.Our motivation on ZnO thin film is, therefore, to examine the structural and optical properties obtained through a feasible, toxic free, chemical solution deposition method by manipulating the Gd doping content.
Leu, Journal of Alloys and Compounds475, L46 (2009).

It can be known from the Figure3, The shear capacity of coupled eco-composite wall can be enhanced by increasing the block strength when the strength ratio of and concrete is 0.22 ～0.275, cooperative working performance and concrete and masonry material properties can be fully utilized.
Acknowledgements This work was financially supported by Shaanxi Province Natural Science Fund（2013JK0986）.
Journal of Building Structures, 2003, Vol.24(No.1): 59~63( In Chinese) [2] Yao Qian-feng，Chen Ping．Structure Experiment in Civil Engineering．China Architecture & Building Press.2001 ( In Chinese) [3] Alemdar Bayraktar.
Construction and Building Materials 23, 2009:1064~1077 [4] Guo Zhenhai，Shi Xudong．Reinforced Concrete Theory and Analyse．Tsinghua University Press．2003 ( In Chinese) [5] Wei Huang: Study on the Aseismic Performance and Design Theory of Multi-ribbed Composite Wall.

The Microwave Synthesis and Photocatalytic Activity of ZnO/TiO2 Nanocomposites Gangcheng Zhou, Quanxin Zhu, Wanqing Xiong, Jian Lei, Wenxiang Ye and Xue-Hong Liao* Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization，The College of Chemistry and Life Science, Huanggang Normal University, Huanggang, 438000, Hubei, P.R.China Email: liaoxuehong@sohu.com Keywords: ZnO/TiO2 nanocomposites; Microwave synthesis; Photocatalysis; Degradation;Methyl orange Abstract.
The rectilinear track described indicates that the reaction of photocatalytic degradation of methyl orange is in accord with first order kinetics and the rate constants calculated is 0.0004s-1 Fig.6 Kinetics of photo-degradation of methyl orange Photocatalytic reaction catalyzed by nanocomposites material is carried out through transferring and separating photocarrier between semiconductors with nearly the same but different energy-gap, which enhances efficiently photocatalysis.
Acknowledgments: This work is supported by Foundation of Department of Education in Hubei province of China (D 200627001) and Functional Materials Research Team of Huanggang Normal University.
Journal of Photochemistry and photobilogy A; Chemistry. 141(2001)209-217.

Economic analysis of the main influence factors to the reinforcement for in-service bridges 1.1 Economic influences of initial cost to reinforcement of in-service bridges Reinforce initial cost of the structure of the bridge is refers to the direct costs of bridge structure reinforcement, Including labor, equipment and machinery purchase or licensing fee, material fee, management fee, all sorts of all sorts of construction increasing fee and other related costs, etc., In the practical analysis of reuse and recycling fees can be deducted [3]. 1.2 Economic influences of limiting or interrupting transportation costs to reinforcement of in-service bridges With the development of economy, a growing interdependence between various industries and the importance of transport network in the whole economic development comes more and more obvious.
Therefore, an economic evaluation of bridges in service, bridge reinforcement project construction period internal cause obstruction or interrupt the traffic caused by the economic loss of cost is a factor cannot be ignored. 1.3 Economic influences of inspection and maintenance cost to reinforcement of in-service bridges Regular inspection and maintenance are minor repairs and maintenance work, generally does not affect the capacity of Bridges, Only includes labor cost involved, replace railings, local repair paint and other materials consumed and machinery and so on. 1.4 Economic influences of the repairing cost to reinforcement of in-service bridges Bridge repair [3] refers to the repair, replacement of main bearing component of the structure of the bridge, Such as small and medium-sized bridge bearings, expansion joints, etc.
Journal of Chang’an University(Natural Science Edition 2004,5:135 [4] Peilun Ye,Yanan Yu.

Effect of Na2SO4-V2O5 Mixture on Y2O3 Stabilized Zro2 Thermal Barrier Coatings Exposed at High Temperature Imran Nazir Qureshia, Muhammad Shahidb, A.Nusair Khanc a,b School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan c Institute of Industrial and Control System, Rawalpindi, Pakistan aimrannazir@scme.nust.edu.pk, caamer.nusair@gmail.com Keywords: Thermal barrier coating, Hot corrosion, Perovskite structure, Yttrium vanadate, Monoclinic zirconia Abstract.
YSZ is usually selected as topcoat material because of its high coefficient of thermal expansion, which closely matches with that of substrate, and relatively low thermal conductivity [2, 3].
Habibi, Li Wang, S.M.Guo, Journal of European Ceramic, 32 (2012) 1635-1642

China 310018 2Zhejiang Academy of Agricultural Sciences, Hangzhou city, Zhejiang Prov.
However, each part of this industrial chain exists various influences, especially the raw material production part, these cause the bee products’ various quality problems and affect our bee products’ sale in domestic market and exports, finally lead to the great loss.
Journal of Shanxi Agricultural University,2007, 27(2): 196~199
Internet of Things barcode technology and radio frequency identification technology[M].Beijing: China materials press,2011