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Eventually, offer the learning material for learner
(3) According to the information offered by problem agent, the experiment Agent organizes the exercise material from testing resource bank.
(3) Generate the personalized learning map and indicate the student for learning. (4) Offer learning material for student.
Individualized study was achieved, rather than the traditional teaching system just presented the simple learning materials.
Acknowledgment This paper is supported by Youth Research Foundation of Jilin University under Grant No.905070176006 and by the National Natural Science Foundation of China under Grant No.60673099.

Introduction Ammonium polyphosphates (APP) are used as materials of flame retardants for organic polymers.
Experimental Methods Materials:Diammonium hydrogen phosphate (DAP) and urea were supplied by Sinopharm Chemical Reagent Co.
Journal of American Chemical Society, Vol. 91,(1969),p. 62
Journal of Applied Polymer Science.
Journal of Agriculture and Food Chemistry, Vol. 24,(1976), p.412

Bian: Journal of Polymer Science Part B: Polymer Physics.
Yang: Journal of Polymer Research.
Kim: Macromolecular Materials and Engineering.
Liu: Advanced Materials Research.
Hoffman: Journal of Applied Physics.

Sooknoi3,g 1 National Metal and Materials Technology Center 114 Thailand Science Park, Paholyothin Rd., Klong 1, Klong Luang, Pathumthani 12120 Thailand 2 Department of Chemical Engineer, Faculty of Engineer, Srinakharinwirot University, Nakhonnayok, 26120 Thailand 3 Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Rd., Ladkrabang, Bangkok, 10520 Thailand a angkhanj@mtec.or.th Keywords: TiO2 gel, V-doped TiO2 gel, catalytic activities, porous α-Al2O3 beads and coating Abstract.
Acknowledgement The work is a part of the project supported financially by National Metal and Materials Technology Center (MTEC) under project number MT-B-47-CER-07-169-I.
Okura : Photocatalysis, Science and Technology (Kadansha Ltd., Japan 2002)
Kiss: Journal of Catalysis Vol. 226 (2004), p. 183
Larbor: Journal of the European Ceramic Society Vol. 23 (2003), p. 1457

Compared with conventional materials, PET film has distinct advantages, including light weight, durability, and transparent package[3].
Experimental Materials The PET film was obtained from Dupont.
References [1] Cruz S.A, Zanin M , et al.Journal of Applied Polymer Science.2010;5: 2728-2733
Science, 1997;277:1232-1237
Science.2001;294:1901-1093

In the process of contact, use of the Mises yield criterion was more suitable for the ductile material.
This material was chosen because it is frequently used in aero-engines where it may be subject to fretting.
A plot of true stress versus true strain for the chosen material model is shown in Fig. 3.
Acknowledgment This research is supported by the National Natural Science Foundation of China (NSFC) under grant No: 51175085, the Natural Science Foundation of Fujian province under grant No: 2011J01299, the Science Development Foundation of Fuzhou university(2010-XQ-13) References [1] A.Majumdar and B.
Vol 127 (2005),p.315 [5] J.Jamari,M.B.Rooij and D.J.Schippe:ASME J Tribol.Vol 129(2007)，p. 957 [6] S.Prasanta and G.Niloy: Journal of Physics D.

Fazeli 1Department of Mechanical Engineering, Iran university of science and technology Associate Professor Tehran, Iran 2Department of Mechanical Engineering, Iran university of science and technology Graduate student Tehran, Iran 1e-mail: shh@iust.ac.ir,2s.fazeli.v@gmail.com Keywords: free vibration analysis-ritz method-mindlin plate theory -fiber reinforced Abstract - in this paper the free vibration analysis of a fiber reinforced mindlin plate is presented.energy method based on the ritz method is used to obtain natural frequencies of the plate.
Introduction Composite materials, especially fiber reinforced laminates because of their low density,high strength to weight ratio and design flexibility, have found increasing applications in many engineering structures such as ships,airplanes and etc.researches show that the effect of shear deformation and rotary inertia on the behavior of fiber reinforced laminated composite plates are more important than of those in isotropic plates.
Ahmed, “dynamic behaviour of thin composite plates ,” Journal of engineering and sciences, vol. 2,num.1 pp. 59–61, January-June 2008
[3] M.K Pandit,S.Haldar and M.Mukhopadhyay, “free vibration analysis of laminated composite rectangular plate using finite element method,” J Reinf Plast Compos 2007; 26(1):69-80 [4] J.N.Reddy and W.C.Chao , “large deflection and large amplitude free vibrations of laminated composite material plates,” computers and structures 1991, vol. 39, num.6,p.685 [5] S.Latheswary, K.V.Valsarajan and Y.V.K.S .Rao, “free vibration analysis of laminated plates using higher-order shear deformation theory,” IE(I)Journal-AS 2004,vol.85, pp.18-24
Journal of the acoustical society of america, v.98 ,1995,pp. 1547-1557

It uses less energy and water; as well reduce the life-cycle environmental impacts of materials used.
Passive components are as follows: - location, orientation, shape, geometry, envelope, institution, sun shading, community programs, natural ventilation, policing, sustainable materials and green roofs and landscaping.
International Journal of Sustainability in Higher Education, 4 (1), 44-56. (2003) [5] Lechner, N.
Challenges for architectural science in changing climates: Proceedings of the 40th annual conference of the Architectural Science Association ANZAScA.
Journal of Architectural Education, 60(4), 15-23. (2007).

Materials and Instrument Acrylamide(AM), sodium hydroxide(NaOH), Ammonium persulfate((NH4)2S2O8), Sodium bisulfite(NaHSO3), Absolute ethanol, NaCl, CaCl2, Analytical purity, hydrochloric acid, Industrial grade, Chengdu Kelong Chemical Reagent Factory, Sodium p-styrenesulfonate, Industrial grade, Shanghai Bangcheng Chemical Plant, DMAAC-18, Industrial grade, Jiangsu Feixiang Chemical Industry Group.
[2] Guoyan Ma, Yiding Shen, Ruimin Gao, Xiaorong Wang, Zhe Wu, Research and application of ultralow interfacial tension oil displacement agent, Journal of Dispersion Science and Technology, 38(10) (2017), p. 1459-1464
[3] Zhe Sun, Xiangguo Lu, Wei Sun, The profile control and displacement mechanism of continuous and discontinuous phase flooding agent, Journal of Dispersion Science and Technology, 38(10)(2017), p. 1403-1409
[4] Zehua Chen, Xiutai Zhao, Enhancing heavy-oil recovery by using middle carbon alcohol-enhanced hot polymer flooding, Journal of Petroleum Science and Engineering, 149(2017), p. 193-202
[7] Gang Chen, Jie Zhang, Chao Cheng, Yan Sun, Qi Hu, Chengtun Qu, Sanbao Dong, Study on synergistic treatment of oily sludge with surfactant and alkali, Journal of Petroleum Science and Engineering, 183(2019), 106420

Evaluation on Antioxidant Activities of Extracts from Chinese Herbs and Application in the Pear Wine Brewing Dawei Zhang, Jie Zhang, Leidong Hong, Fang Liang College of Life Science Hunan University of Science and Technology Xiangtan, People’s Republic of China Keywords：Pear Wine, Antioxidant, Brewing, Sulfur Dioxide Abstract.
Material and Methods Material and Reagents Forty kinds of Chinese herbs were purchased from Hunan province Changsha city.
Riboflavin and Folin Phenol reagent Shanghai Lida limited company of biology science and technology.
R., Using dimethyldicarbonate to minimize sulfur dioxide for prevention of fermentation from excessive yeast contamination on juice and semi-sweet wine[J], Journal of Food Science, 2002, 67, P2752–2758
[13] Yang Jinhua, Li Bo, Ji Baoping, Study on Antioxidant Activities of Edible Plants and Medicinal Plants Common in China[J], Food science, 2006, 27(6), P87-91