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Thermodynamic studies on selective oxidation of Nb, P and C in dephosphorization of low niobium hot metal Yongli JIN12a, Zengwu ZHAO1,Jieyu ZHANG2 1 Inner Mongolia Key Laboratory for Utilization of Bayan Obo Multi-Metallic Resources，Elected State Key Laboratory，Inner Mongolia University of Science and Technology, Baotou 014010 2School of Materials Science and Engineering, Shanghai University ajingang_00@yahoo.com.cnl Keywords: Dephosphorization, selective oxidation, niobium, phosphorus, thermodynamics Abstract: The main problem with the efficient utilization of Nb resource in the Boyan Obo Ore lies in the selective oxidation of [Nb], [P] and [C].
Acknowledgements This work was financially supported by the Special Project of the State Key Basic Research Program of China(973) (Grant No.2010CB635105 ), National Natural Science Foundation of China (Grant No.50964011) , National Natural Science Foundation of China (Grant No.50864011) , The National Key Technology R&D Program for the 11th five-year plan（2008BAB32B07）, National Natural Science Foundation of Inner Mongolia (Grant No.2011MS0726) References [1] H.T.
Nb-Science and Technology.
Metal Science, 8(9),(1974), p.298-310
Journal of Beijing University of Iron and Steel Technology, 3, (1983), p.79-91.

The Safety Assessment of Bored Pile Retaining Wall Based on Back Analysis for Bending Moment Tao Liu1, a, Yunbin Chen2, b 1, 2 College of Environmental Science and Engineering, Ocean University of China, Qingdao, Shandong Province, China altmilan@163.com, b604774756@qq.com Keywords: Back analysis for bending moment; Least squared method; Curvature; Bored pile retaining wall Abstract.
By the knowledge of mechanics of materials, the bending moment of homogeneous elastic beam satisfies the following equation: (1.1) In the equation, stand for the curvature of retaining wall deformation curves, stand for the radius of curvature, stand for bending stiffness of retaining wall.
For homogeneous elastic beam, the bending stiffness could be determined accordingly when parameters like section size and strength of materials are given.
According to the mechanics of materials, Eq.1.4 can be further decomposed into: (1.8) In Eq.1.8: stand for distribution of load which retaining wall bear.
JOURNAL OF SHENYANG JIANZHU UNIVERSITY NATURAL SCIENCE. 23(4),584-588(2007) .

Effect of Ferrous Ion on the Corrosion Behaviour of 410 Stainless Steel in Wet H2S Environment Jie Zhoua, Pengpeng Baib, Tianqi Wangc and Shuqi Zhengd* State Key Laboratory of Heavy Oil Processing and Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China aJeffrey222@126.com, bcup2011216059@163.com, cwtq0719@163.com, dzhengsq09@163.com Keywords: H2S, corrosion, Martensitic stainless steel.
Experimental Procedure Material and sample preparation. 410SS was chosen as the experimental material.
The optical microstructure of the test material was determined by a optical microscope.
Acknowledgments This work was financially supported by the Natural Science Foundation of China (Grant nos. 51171208 and 51271201).
Li, Electrochemical and sulfide stress corrosion cracking behaviors of tubing steels in a H2S/CO2 annular Environment, Journal of.

Model Design of Universal Open Intelligent Classroom Teaching Software Yan Yu 1, a, Jianhua Wang 1,b* 1Institute of Computer Science and Information Engineering,Harbin Normal University, Harbin 150025, China ayuyan9999@vip.qq.com , bWJH@vip.163.com (*Corresponding author.
In 70’s, CAI was featured by generating system which can automatically generate questions and answers of teaching materials and can give limited evaluation on student’s answer.
Without the support of inference mechanism and student model, it can’t determine the knowledge level and acquisition level of students, provide appropriate learning materials based on their will and comprehensive ability, and develop individualized education with appropriate guidance.
Most PPTs are filled with more texts but less pictures, more static contents but less dynamic ones; more repeated teaching materials from the textbooks but less supplementary, and more weary contents but less interesting ones for students.
Journal of Nanjing University of Aeronautics & Astronautics (Social Sciences), 2001,12 (3) : 86-88

He, Materials Protection, Vol. 36(2003), p9-11(In Chinese) [2]H.B Qi, M.
Z Guo, Y.D He, Corrosion Science and Protection Technique, Vol. 14(2002), (2), p113(In Chinese) [3]T.F Li: Metal oxidation in high temperature and hot corrosion (Chemical Industry Publisher, China, 2003) (In Chinese) [4]X.G.
He, Journal of Chinese Society for Corrosion and Protection, Vol, 23(2003), p 171-174(In Chinese) [5] X.G.
Li, J.W.He, Materials letters, Vol, 60(2006), p339-344 [6]H.
Saito, Materials Science and Engineering, A 329-331(2002), p589-595 [7]R.

Synthesis and characterization of acrylamide based benzoxazine Bakangura Erigenea, Luo Zhongyu, Wang Guangkai, Yang Bin, Yue Yanping, and Lin Xiaodanb College of Materials Sci. and Eng., South China Univ. of Tech., Guangzhou 510640, PR China abaka.eri@hotmail.com, bmcxdlin@scut.edu.cn Keywords: benzoxazine, acrylamide-benzoxazine, ring openning curing, thermal polymerization, solvent effect Abstract.
Different strategies taken to design suitable benzoxazine include preparation of monomers with addition functional group, blending, incorporation of benzoxazine structure to other polymers and hybridization with inorganic materials.
Experimental Materials Phenol, 2-allylphenol, paraformaldehyde and aqueous formaldehyde solution (37%) were purchased from Fuchen chemical reagent.
Acknowledgement We appreciate the support of Chinese scholarship council (CSC) for graduate fellowship and thanks to the support of the Science Foundation for Universities and Institutions of Dongguan City, P.
Ishida1., Journal of polymer science Part A: POLYMER CHEMISTRY, 49, 4335–4342 (2011)

Methodology Materials.
Reservoir Engineering Handbook: Elsevier Science
SPE Journal
Relationship between Foamability and Nanoparticle Concentration of Carbon Dioxide (CO2) Foam for Enhanced Oil Recovery (EOR) Applied Mechanics and Materials Vols. 548-549 (2014) pp 67-71
Applied Mechanics and Materials, 548-549, 1876-1880.

The texture of specimen by utilizing waste materials was also studied.
Although the industrial wastes are an environmental problem they can be used as the alternative materials for replacing the materials from natural resources, minerals, commercial raw materials, and so on.
Sobrosa et al. replaced kaolin clay by 5%, 10%, and 20% of RHA for improving ceramic materials.
All raw materials were dried at 200°C for 2 h to remove moisture.
Hossain: IOSR Journal of Environmental Science, Toxicology and Food Technology Vol. 8 (2014), p. 9-18 [2] Information on http://www.thairiceexporters.or.th [3] Information on http://pcd.go.th [4] Y.

From another side, continuous device downscaling identified by ITRS [10] imply the employment of both new device architectures (to improve short-channel effects (SCE) control) and new channel (to boost carrier mobility) and gate dielectric (to improve SCE control and minimize leakage currents simultaneously) materials.
At present, there is no sufficient generated knowledge and gathered experimental database on the reliability aspects in the devices with novel architecture and employing new materials thus creating a demand for an in-depth assessment of reliability issues in “novel” devices.
Difference in the initial space-charge conditions at the film-BOX interface, difference in oxide and interface charges build-up in both gate and buried oxides in the case of strained and non-strained materials as well as possible strain relaxation were considered.
Terao: IEEE Transactions on Nuclear Science Vol. 40 (1993), pp.78-81
Chang: Journal of Electronic Materials Vol. 21 (1992), pp. 693-699

Cool roofs are characterized by materials having: high solar reflectance (SR) and high thermal emittance (TE).
The former expresses the ability of the materials of reflecting most of the incident solar radiation during daytime, keeping their surfaces cooler respect to conventional construction materials.
The high thermal emittance allows the materials to radiate away the heat stored in the structure, mainly during night time.
Optimizing roof materials can play a vital role in solving this problem.
Bretz; "Preliminary Survey of the Solar Reflectance of Cool Roofing Materials," Energy and Buildings, Vol. 25, 149-158 (1997)