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The prediction model of neural network using BP network, which structure is based on the consideration of network accuracy and training time .
Finally, neurons number at each layer is set as 2-5-1.This model is trained used the data come from industrial field, and its structure as shown below.
Fig3 Neural network structure diagram Where, input U is the parameters in fig4, output (k) is the double clour temperature, if we want to use this BP network in multi-step prediction, then the iterative is needed.
Industrial & Engineering Chemistry Research, Vol 52(1) (2013), p.394-407

Nano-MgO templated mesoporous carbon as anode material for Li-ion batteries Lu Shi1,a, Chaolin Miao1,b, Bin Xu2,c , Shi Chen3,d 1College of Chemistry and Chemical Engineering, Xinxiang University, Henan Xinxiang 453000, China 2Research Institute of Chemical Defense, Beijing 100191, China 3Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing 100081, China alulus1987@163.com,bxiaomiao777@126.com, cxubin@bit.edu.cn, dcsbit@bit.edu.cn Keywords: Li-ion batteries; Nano-MgO; Specific capacity; Cycle performance Abstract: The mesoporous carbon material is prepared by using phenolic resin and MgO nanoparticles as precursor and template, respecitively.
However, the commercial application of the metal anode in current lithium-ion batteries is hindered by the rapid capacity decay during cycling because of the enormous volume expansion of above 280%[4,5].Among these materials, porous carbon materials are effective for the improvement in kinetics of lithium ion insertion/de-insertion since the pore structure provides the materials with more ion transportation paths and a large surface area for charge transfer reaction[6].
Results and discussion To investigate the porous structure of the carbon materials clearly, the nitrogen(77K) adsorption/desorption isotherms are shown in Fig.1.
The low-magnification image in Fig.3a shows that the structure of the carbon materials were like honeycomb with rich pores.

The curing kinetic researches lead to a better knowledge of the curing behavior and the final structures of networks.
The chemical structures of EnE and THPA are shown in scheme 1.
Structures of EnE and THPA Sample Preparation.
Astarita: Industrial & Engineering Chemistry Research.

Thus, in order to minimize hot cracking issue, guidelines in selection suitable filler metals need to be utilized such as reduction of stresses and avoidance of critical chemistry ranges between filler metal and the base metal in the welding.
Although internal porosity is not so dangerous compared to external porosity to the welding structure, but it will definitely slightly decrease the weld strength and ductility of the structure depending on the amount.
Thus, the porosity developed inside the weld area will act as high stress concentration area where subsequent failure such as microcrack will originate and reduce the weld quality of the welded joint structure [5].

The structures of samples were studied by X-ray diffraction (XRD, DX-2500, Dandongfangyuan Co.
For example, when x=0, all diffraction peaks can be indexed to the orthorhombic structure (space group = Pbam) of Bi2Al4O9 and no impurity phase was found.
For x=0.2, all peaks correspond to LaAlO3 with a perovskite structure (JCPDS card 31-0022) appear.
Nunes: Journal of Solid State Chemistry Vol. 147 (1999), p. 631 [3] S.

Numerical Simulation for Heat Transfer of Nanofluid in a Rotating Circular Groove Using a Continuous Finite Element Scheme Yongyue Jiang1, a, Ping Lin2, b, Botong Li3, c and Lin Li1, d 1School of Mathematics and Physics, University of Science and Technology Beijing, XueYuan Road 30, Beijing, China 2Department of Mathematics, University of Dundee, Dundee DD1 4HN, Scotland, United Kingdom 3International Centre for Applied Mechanics, State Key Laboratory for the Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an China ajiangyongyue1987@sina.com, bplin@maths.dundee.ac.uk, clibotong0709@mail.xjtu.edu.cn, dexam-19861208@163.com Keywords: nanofluids, power-law-fluids-based, continuous finite element, rotating circular groove.
Introduction Nanofluids composed of nanoparticles and common fluids has been widely studied in physics, chemistry and biology, etc..
At the beginning, nanoparticle size, dispersion, concentration, microscopic motion and nanoparticle structure are regraded as the reason of enhancement [2, 3].
This error came from the absence of microscopic motion and structure-dependent behavior in the theoretical models.

Extraction of the Pectin from Virginica Stem Bark and Study on its Structure and Composition Lishan Fan1,a, Lei Zhao1,a 1 Yancheng Textile Vocational Technology College, Yancheng, 224005, china a fanlishan2005@126.com,bzhaolei7365@163.com Key words: Virginica stem bark, pectin, extraction, composition Abstract: Using virginica stem bark as raw material, extracted with hydrochloric acid, sulfuric acid, and tartaric acid through an orthogonal experiment.
Then, the structure of pectin was analyzed and compared with mulberry pectin.
[5] Lai xin Ding, Rong su Liao, Ning Yin, Meng Liu, A Study on extracti on of pectin from Gardenia Peel [J], Chemistry and industry of forest products., 2007,27(3):103-106.

Pore Structure of Alumina derived from the Alkyl Derivatives of Boehmite Sung-Wook KIM, Shinji IWAMOTO and Masashi INOUE* Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan *inoue@scl.kyoto-u.ac.jp Keywords: Alumina, Pore structure, Solvothermal reaction Abstract.
Preparation of alumina (or alumina-based) supports with the controlled pore structure is still active area: Thus, many papers have been reported [2-8].
The XRD patterns of the products could be indexed on the basis of the boehmite structure, and the lattice parameters a and c of the products are essentially identical with those of well-crystallized boehmite.

The effects of reactants ratio, pH value on the structure of material were studied as well.
The formation, morphology, pore structure and thermal stability of the material were characterized.
The effect of pH value on pore structure.
The pH value of silicasol not only affected the structure of Si-OH which was of the surface of silica colloidal particles, and changed the condensation of the colloidal particles, but also had a direct impact on the porous structure of the silica.
Through measurements of FTIR, SEM and pore structure tests, effects of reactants ratio, pH value on the structure of the obtained material are studied.

Interestingly, silica and alumina are essential elements for geopolymer as can be seen by the product structure.
The fracture surface of 2Si10Al0 showed the compact structure of paste with some unreacted fly ash.
[5] Davidovits, J., 1999, Chemistry of Geopolymeric Systems, Terminology, Proceedings Geopolymer’99 International Conference, June 30 to July 2 1999, France, p. 9-40 [6] Davidovits.
J., Geopolymer chemistry and application.
[10] Provis., J.L., van Deventer, J.S.J., Geopolymers: Structures, processing, properties and industrial applications.