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Introduction Environmental science Big Dictionary defines the ecological compensation “when the biological organism, the population, the community or the ecosystem receives the disturbance, they display the abilities of relaxing the disturbance, adjusting their own condition to survive.
And, the subject of wetland ecological compensation refers to the party which provides the cash or material[3,4]; The object of wetland ecology compensation refers to the party which obtains the cash or material.
(In Chinese) [5] Li Lai.The ecology compensatory theory and method study progress[J]. ecology journal, 2008, 28(6): 2870-2876.
Hunan Industrial university journal,2008,13(4):89-91.

As far as this can provide students recommended courses and learning materials, and student’s feedbacks are also can be provided to teachers, so the teachers can adjust the course content timely.
Conclusion Accompany with the unceasing development of science technology and education, using the internet to carry on the distance learning is the inevitable trend, particularly, the application of Web Data Mining technology make the personalized and intellectualized distance learning become possible day by day.
Dalian Railway Institute Journal,2003,24(4):48-49 [7] J.R.Quinlan.Induction of Decision Trees[J].Machine learning,1986,(1):81-106
Tianjin Textile Engineering Journal,1999,18(5):56-59

Acknowledgements The work described in this paper was supported by a grant from the National Natural Science Foundation of China (Grant No. 50908245).
[2] Liang Su,Shilin Dong and Shiro Kato: Journal of Constructional Steel Research, 63(6) .(2007), p.725-734
Sain, et al: Journal of Engineering Mechanics.
Liao:Smart Materials and Structures, Vol. 1. (2005), p. 111-126.

Acknowledgement It is a project supported by the Shandong Natural Science Foundation (ZR09FM059).
Ruan Jian Xue Bao/Journal of Software, vol. 9(1998), p 861-865 [2] S.L.
International Journal of Mechanics and Materials in Design, vol. 6(2010), p 123-134 [5] X.S.

Acknowledgment This work was supported by IC Special Foundation of Shanghai Municipal Commission of Science and Technology (Grant No. 09706201300), Shanghai Municipal Commission of Economic and Information（Grant No.090344）.
The 8th IEEE CPMT Conference on High Density Micro-system Design and Packaging and Component Failure Analysis(HDP’06), IEEE, June 2006, pp.278-281 [2] Yang Zhaoyang,Luo Yongge.A SCI Online Programming Methodology Based on the Software[J] Suzhou university journal,2010.4
Journal of Shanghai University(English Edition),2011.12, 19(12):3089-3091
Applied Mechanics and Materials, v 128-129, p 255-260 [9] Shanghai university MCU assembly program development platform software（MV_IDE）V1.0 user guide

Considering loading property, material quality, manufacture level, service conditions and so on, the constraints conditions are set up, including the performance and boundary conditions. [3] 1) Link lengths to be positive： 2 1L L≥ , 31L L≥ ; (4) 2) the Grashof condition: 1 4 2 3L L L L+ ≤ + , 12 4 3 L L L L + ≤ + , 13 4 2 L L L L + ≤ + ; (5) 3) Limit to transmission angle of linkage to guarantee transmission performance: 45 135γ≤ ≤ � � (6) When the crank is overlapping collinear with ground link 2 2 2 min 2 3 4 1 2 3 cos cos[( ( ) )/(2 )] cos45 L L L L L L γ = + − − ≤ � (7) When crank is collinear with ground link 2 2 2 max 2 3 1 4 2 3 cos [( ( ) )/(2 )] cos135 L L L L L L γ = + − + ≥ � (8) where：
Annealing is the technique of closely controlling the temperature when cooling a material to ensure that it is brought to an optimal state.
References [1] Dai Ke-jie, Controlling the Windscreen Wiper System of the Automobile by Using PID, Journal of Pingdingshan University , 2008.5, p. 103
Design of the Intelligent Windscreen Wiper System of the Automobile, Electronic Science and Technology, 2007.2, p. 58
[5] Zhao Shian, Huang Ganji, Design and Study of Particle Swarm Optimization with Simulated Annealing, Journal of Baise University, 2006.6,p.124

So select a near-infrared light-emitting diodes made of GaA5 for the raw materials as the light source[4,5,6].
Application of FTIR analysis in commercial Oil analysis laboratory[J]North China Institute of Technology Journal of Test and Measurement Technology, 2000,14,902-906 [5].
Pan Yonghui, Xu Biao, Zhu Xiaosong, The Measurement of Dark Current Temperature Dependence of Photodiodes, JOURNAL OF NAN JING NORMAL UNIVERSITY(Natural Science) 1999,22(2),40-43 [8].

Although some design of ventilation and smoke exhaust system, but has no effect in the fire at all; (2) Fire alarm and fire fighting equipment in the subway were incomplete; (3) Subway and adornment material were flammable, once the fire, not easy to control; (4) Metro management was oversight. 1.2 The characteristics of the subway fire Because the subway usually buried deep in the ground, far off the ground, generally 20 to 30 meters from ground, further such as north Korea Pyongyang subway, route and station are off the ground and 70 metres deep.
Subway within a closed environment make the material were not easy to burn adequately, fire fuel of large amount of smoke, and the subway into the exhaust by a small amount of tuyere, mechanical ventilation system failure occurs it was difficult to rely on natural ventilation, smoke control and eliminate all were more complex
China safety science journal, 2004, 14 (7):70 -73 [3] Hitoshi Kurioka,Yasushi Oka,Hiroomi Satoh ans Ssami Sugawa．Fire properties in near field of square fire source with longitudinal ventilation in tunnels．Fire Safety Journal,2003,8:319-340 [4] L.H.Hu,R.Huo,Y.Z.Li,et a1.Full-scale burning tests on studing smoke temperature and velocity along a corridor Tunnelling and Underground Space Technology,2005，20(3)：223-229

This oxygenated fuel which are similar in terms of their physical properties to diesel fuel, have numerous advantages, high self ­ignition properties, miscible with diesel fuel in any desired concentration, good material compatibility and no toxicity.
(1) Polyoxymethylene dimethyl ether is similar in terms of their physical properties to diesel fuel, have numerous advantages, high self ignition properties, miscible with diesel fuel in any desired concentration, good material compatibility and no toxicity
Bio resource Technology, 2007, 98(6): 1167-1175 [2] GE Yun-shah, XIN Jian-min, WU Si-jin. et al Emission characteristics of turbo-charge diesel engine with bio-diesel fuel[J].Journal of Combustion Science and Technology, 2004, 10(2):125-129(in Chinese) [3] QI Dong-hui, CHEN Hao, LIU Jin, et al Combustion and emission characteristics of diesel engine fueled with biodiesel[J].Automotive Engineering, 2008,30(7): 581-584(in Chinese) [4] Werner, M.; Wachtmeister, G.
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Optimization of the Submerged Fermentation Conditions of Ganoderma lucidum with High Triterpenoids Production by Response Surface Analysis Meilin Cui1,a, Guoqing He1,b* 1 College of Biosystem Engineering and Food Science, Zhejiang University Yuhangtang Road 866, Hangzhou, 310058, Zhejiang, PR China ae-mail:cuimeilin1988@163.com, be-mail: gqhe@zju.edu.cn Keywords: Ganoderma lucidum, Mycelia biomass, Polysaccharides, Triterpenoids Abstract.
Materials and methods Microorganism and inoculum preparationThe strain of American G. lucidum was obtained from the College of Agriculture and Biotechnology, Zhejiang University.
Breaking the spores of Ganoderma lucidum by fermentation with Lactobacillus plantarum, African Journal of Biotechnology, vol.9(43), pp. 7379-7382, 2010
[3] Stajic, et al., A Comparative Assessment of the Potential of Polysaccharide Production and Intracellular Sugar Composition within Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum, International Journal of Medicinal Mushrooms, vol.13(2), pp. 153-158, 2011