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Experimental Study on Heat Transfer Performance of the Solar Collector with an Inserted Heat Pipe Using Magnetic Nano-fluids as the Working Fluid Yunfeng Zhang1,a, Kai Han1,b, Benliang Xu1,b, Zhengrong Chang1,b 1School of Energy and Power Engineering，Changsha University of Science and Technology, Changsha 410076，China aZhang_yunfeng45@yahoo.com.cn ,bhan_kai1989@163.com Keywords：All-glass evacuated tube，Inserted heat pipe，Nano-fluid，Thermal property Abstract：The heat transfer system of glass evacuated solar collector with an inserted heat pipe was established and researched experimentally.
The results show: the cover plate of the solar collector’s collecting efficiency will higher when the material of cover plate is low radiation glass[2].
[3] Xie Guanghai，Wang Changxin，Li Yuping．Design and Research on the Heat Pipe Solar Energy Water-hea-ter[J]．JOURNAL OF LUOYANG UNIVERSITY．2003，12：101-104
(In Chinese) [5] Yan Suying，Tian Rui，Hou Shang，Zhang Lina．Analysis on Unsteady State Efficiency of Glass Evacuated Solar Collector with An Inserted Heat Pipe[J]．JOURNAL OF ENGINEERING THERMOPHYSICS．2008(2)：323-326

Fig.4 Fig.5 Fig.6 The two-dimensional finite element model Fig.4 Simplified model of the steel structure billboard Fig.5 Simplified model of enclosure piles Material Parameters of Model.
[4] Rufeng Leng, Yafang Zhang.: Journal of Guangzhou University (Natural Science Edition) Vol.10, No.2 (2011), p.64-67, in Chinese
[5] Kai Sun, Zhenggan Xu, Tingjin Liu, Zongxin Fang.: Chinese Journal of Rock Mechanics and Engineering Vol.23, No.2 (2004), p.293-298, in Chinese

Material and Methods Studying area and data collection.
The analysis of the data was carried out using SPSS (Statistical Package for Social Science, version 13.0).
Evaluation of neural networks for modelling nitrate concentration in rivers, Journal of Water Resources Planning and Management 129(2003) 505-510
Liu, The Forecast of Water Quality Based on Artificial Neural Networks and Regression Analysis, Journal of Zhengzhou University 29(2008) 106-109

Decision Method of Processing Scheme for Part Surface with Constraint Condition Based on T_invariant of Fuzzy Petri Nets Wei Yue Xiao1,a, Fei Yu2,b 1College of Mechanical Engineering,Hunan University of Arts and Sciences,Changde 415000,China 2Mads Clausen Institute, University of Southern Denmark, Sonderborg 6400, Denmark aXiao0736@gmail.com bxlinsherley@gmail.com Key words：Petri net；T_invariants；manufacture constraint；process plan；CAPP Abstract.
A 50 ◎ f 0.015 A 0.4 Material: 45 Heat-treatment: HRC40~45 Æ98h6( 0 -0.022) pm0 t1 pm1 t2 pm2 t5 pm5 t3 pm3 t6 pm6 t8 pm7 t7 tv1 tv2 Figure 2 The part of which the excircle to be processed Figure 3 The simplified model for alternative process plans for the part in Figure 2 t1 t2 t3 t5 t6 t7 t8 tv1 tv2 pm0 pm1 pm2 pm3 pm5 pm6 pm7 From the Definition 2, the incidence matrix C7´9 is obtained as below: The equation C • J = 0 in Definition 3 is used to calculate all T_ invariants so as to get the solutions of three T_ invariants (the calculation process is omitted): J = (t1 ,t2 ,t3 ,t5 ,t6 ,t7 ,t8 ,tv1 ,tv2)T J 1=(1 ,1 ,0,1,0 ,0 ,0,1,0) T J 2=(1 ,1 ,1,0,0 ,1 ,0,0,1) T J 3=(1 ,1 ,0,0,1 ,0 ,1,0,1) T Three process plans for processing the excircle surface of the machinery parts shown in Figure 3 can be obtained basing on the processing places corresponding to the transition of which the component is 1 among the 3
Baykasoglu: Linguistic based meta-heuristie optimisation model for flexible job shop scheduling．International Journal of Production Research Vol. 40, pp. 4523-4543 (2002) [5] P.
International Journal of Computer Integrated Manufacturing Vol. 15, pp. 28-36 (2002)

They adopted the unique construction system, which developed gradually from New Stone Age and differed from the western style in building structure and material.
Acknowledgements This work was financially supported by Humanities and Social Sciences project of Hubei Province (Grant No.2012Y077).
Journal of wuhan institute of chemical(In Chinese).
Chongqing construction university journal (In Chinese).

Natural gas hydrates are ice-like materials which exist in permafrost regions and in the continental margins of oceans.
These hydrates are ice-like materials found in permafrost regions and certain continental margins of oceans (including offshore Nigeria) in which enormous quantities of natural gas molecules are trapped within cage structures of water molecules [3 - 5].
Sloan, Natural gas hydrates: recent advances and challenges in energy and environmental applications, AIChE Journal 53 (2007) 1636 – 1643
Cameron, The nature of gas hydrates on the Nigerian continental slope, Annals of the New York Academy of Science, Third International Conference on Gas Hydrates, Park City, Utah, July 18-22, 1999

As visible light accounts for the larges proportion of the solar spectrum, great interests in photocatalysis have been focused on the develop the photocatalysts responsive to visible light irradiation:modification of TiO2 and exploitation of new materials.
Applied Surface Science.Vol. 256, pp597-602,2009
Journal of Hazardous Materials, Vol. 171:pp 1045-1050,2009
Materials Chemistry and Physics, Vol.107:pp465-470, 2008.

Effects of urea treatment on the structure and properties of wheat straw Xingyuan Ma1, a, Xiping Yang1, b, Shufang Zhang1, c, Jun Ma1, d 1College of Resource & Environment, Shaanxi University of Science and Technology, Xian City, Shaanxi Province, 710021, P.R.
Introduction The cellulose biomass is the most abundant organic raw material in the world [1].
Materials and methods Preparation of materials Section Headings.
The first, 4.5g urea dissolved in 50 ml of water, dubbed the urea aqueous solution, and then the pulverized 100g wheat straw with the aqueous urea solution fully mixed, at room temperature solid save for the material after 15d, and finally dried in a 105°C in an oven reserve to constant weight.
Saccharification studies by a thermophilic fungus Sporotricum thermophile isolated from agriculture waste of Bhopal, Indian Journal of Environment &Ecoplanning, Vol.12 (2006), p. 97-104

All cations in garnets are trivalent and, as a result, there is no possibility of electron hopping through the material.
The best YIG from the characterization was selected for further investigation on its efficacy as magnetic nanocatalyts material under the magnetic induction reaction environment.
Spaldin, Magnetic Materials: Fundamentals and Device ApplicationsCambridge University Press ISBN 0521816319, 119, 2003
Maarof, Garnet Ferrite (Y3Fe5O12) Nanoparticles Prepared via Modified Conventional Mixing Oxides (MCMO) Method, European Journal of Scientific Research, ISSN 1450-216X, 36 (2)(2009) 154-160 [8] N.
Magnetism and Magnetic Materials 321(8) (2009) 1106-1110

Materials This study was conducted in the University of Surabaya's greenhouse and plant laboratory.
The materials used are; curly lettuce seeds and nutrient formulation with codes P1 and P2.
Series: Materials Science and Engineering. doi:10. 1088/1757-899X/1098/4/042115 [3] Manalu, D.S.T. dan L.
AgriHumanis: Journal of Agriculture and Human Resource Development Studies 1(2):117-126. http://jurnal.bapeltanjambi.id/ index.php/agrihumanis [4] Siregar, J., S.