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Online since: December 2012
Authors: Erigene Bakangura, Yan Ping Yue, Yang Bin, Xiao Dan Lin, Guang Kai Wang, Zhong Yu Luo
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)
Online since: August 2011
Authors: Zhi Wu Wang, Yan Lei, Wei Wang, Yi Wei Wu, Jie Wang
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.
Online since: September 2012
Authors: Jian Hua Wang, Yan Yu
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
Online since: May 2010
Authors: Jian Min Fan, Guang Ming Hou, Jun Peng Wang
Availability of equipment and materials (U42) 15 easily-5; very easy-4; easier-3; not easy-2; difficult-1.
Gray System Theory and Its Applications, Science Press, Peking(2004), third edition
Technology Integration and Its Strategy, Tianjin Science and Technology, 2003 (4),P51
Compositive Assessment Models of Venture Enterprises, Investment Value Based on Gray Theory, Journal of Wuhan University of Technology (Transportation Science and Engineering ), Vol 29, p495-498
A Comprehensive Evaluation Model and Its Application Based on Multi-hierarchy Gray Theory, Journal of Sichuan University (Natural Science Edition),2005 (10) ,p889-895
Online since: July 2011
Authors: Joaquin Alvarado, Otilia Militaru, Guy Berger, Valeria Kilchytska, Denis Flandre
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
Online since: October 2016
Authors: Gijs J.M. Krijnen, Remco G.P. Sanders
Many materials ranging from plastics to concrete [6] and from metals to living tissue [7] can nowadays be printed.
Compared to the materials found in nature, which can range from extremely compliant to rather stiff, silicon compatible materials like Si3N4, SiO2, Al, AlN, ZnO, Au, Ag, Pt, W, etc. all have Youngs moduli in the 10s - 100s of GPa.
Even polymeric materials like SU-8 [14] and parylene have a moduli of a few GPa.
Since printing of multiple materials in general, and dielectric and conductive materials in one print in particular are only on the brink of development, our sensors up till now do not include the read-out in the printed part but need some assembly.
Hutchins, 'A Simple, Low-Cost Conductive Composite Material for 3D Printing of Electronic Sensors', Plos One, 2012, Volume 7, 11, e49365, doi:10.1371/journal.pone.0049365
Online since: October 2013
Authors: Shi Sheng Shi, Ming Hu Zhang, You Feng Li, Hong Min Chen
The basic thought of realizing the PR in the fault diagnosis system is the data pretreatment (constructing pattern space), feature information extraction or selection of the faults (constructing characteristic space), classifiers design (constructing type space), and recognition conclusions analysis (material application).
China Safety Science Journal, 2004, 14(1):25-27.
Chinese Journal of Scientific Instrument, 2005,26 (Supp.8):280-283.
Journal of Dalian Naval Academy, Vol. 36, Issue 1, 2013, p. 19-22.
Online since: October 2013
Authors: Cătălin Păunescu, Gabriela Gagea, Mihaela Păunescu, Gabriel Piţigoi, Silviu Petrescu
Most of the results and the effects of knowledge, other than the actions and tasks of scientific research, are valuable and make up clues in the evolution of science.
Material and method.
Scharfenberg, The reliability of three devices used for measuring vertical jump height; in Journal of Strength Conditioning Research, 2011. 25(9): 2580-2590 [NCBI] [4] W.
Maresh, Construct validity of the MYOTEST® in measuring force and power production; in Journal of Strength and Conditioning (2009) [5] T.
Small, Previous high-intensity activity affects lower limb strength ratios; in British Journal Sports Medicine, 2010. 44:14 i20 [6] A.
Online since: October 2015
Authors: Jan Labaj, Stefan Husar
Joseph, Cavitation and the state of stress in a flowing liquid, In: Journal of Fluid Mechanics, Vol. 366 (1998) 367-378
Saleem, Effect of Tooth Geometry on Gear Pump Performance, In: Tikrit Journal of Eng.
Sciences, Vol.16, No.4 (2009) 20-27
Molnar, SAP warehouse management system for a warehouse of auxiliary material in the selected company, in: Carpathian Logist.
Krile, One Unequal Error Control Method for Telemetric Data Transmission, In: Journal of Electrical Engineering (JEEEC), Bratislava, Slovakia, Vol. 62, No. 3 (2011) 166-170
Online since: April 2013
Authors: Xiao Chuan Xu, Qing Wang, Xiao Wei Gu
They are the best candidates because, if it is decided to mine T tons of total material at the end of a phase, mining the geologically optimum pit corresponding to T is certainly better than mining any other pits of the same total tonnage.
Acknowledgement This study is financially supported by the National Natural Science Foundation of China and by the Doctoral Program Foundation of the Ministry of Education.
[5] FRIMPONG S, ASA E, SZYMANSKI J, International Journal of Surface Mining, Reclamation and Environment. 16(2002 )134–143
[7] Information on http//interfaces.journal.informs.org/cgi/reprint/inte.1090.0492v1
[9] RAMAZAN S, European Journal of Operations Research. 172(2007)1153–1166
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