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Online since: October 2010
Authors: Chuan Huo, C.C. Pan, Ren Shu Yang, Guo Liang Yang
Pu et al. have researched different materials of tube [7].
JHC material is used to describe rock material.
Acknowledgements This project was supported by the National Natural Science Foundation of China (50774086 and 50874109) and sub-project of 863 (2007AA06Z131).
[2] ZHANG Ji-hong,XIANG Kai-fa.Application of Cutting Seam Cartridge Blasting in Rock Materials of Quarry.Nonferrous Metals(Mining Section),2009,61(3):51-54
Experimental Research and Analysis of Mechanics on Water-Coulpling Directional Fractural Charge.Journal of Beijing Jiaotong University,2009,33(1):109-112
Online since: April 2007
Authors: Qui Ping Huang, Zhang Lian Hong, Peng Yue Zhang, Xian Ping Fan
Preparation and Properties of Ti, Eu Co-doped Y2O2S:0.06Ti,0.08Eu Phosphor with Red Long Afterglow Quiping Huang, Zhanglian Hong∗, Pengyue Zhang and Xianping Fan Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China Keywords: yttrium oxysulfide, phosphor, long afterglow.
Y2O2S based materials may overcome such problems as Y2O2S:Eu,Ti,Mg [6] and Y2O2S:Sm [7] phosphors reported recently had both high luminescence intensity and good chemical stability.
Raw materials of Y2O3 (99.999%), Eu2O3 (99.995%), TiO2 (analytical reagent), Na2CO3 (analytical reagent) and sulfur (99.999%) were mixed homogeneously by ball milling.
Wang: Journal of Inorganic Materials.
Online since: July 2003
Authors: Yu Long Li, Haitao Xin, Xuanxiang Ma, Longan Ying
Materials and Methods Establishment of models *Corresponding author, Associate Professor.
Loading and Boundary Condition Material properties for the experimental composite materials represented by conventional materials in the same category.
Fig5-Fig8 show˖Distributions of stresses of infinite domain and different sections of materials were similar to the result we presented above.
Xin: Journal of Practical Stomatology, Vol. 15(1) (1999), p. 67-68 [10] H.
Zhou: Journal of Beijing Medical University, Vol. 6 (24) (1982), p. 334-335 Acknowledgments: This study was supported by National Natural Science Foundation of China.
Online since: July 2015
Authors: Fang Cai Zhang, Chong Zhi Li
Raw materials and testing methods Raw materials (1) Materials to synthesize water reducer: macro-monomer methyl-allyl polyethylene glycol2400 (HPEG2400), industrial grade, Purity>90.0%; allyl, polymer grade, Purity>99.0%; Mercaptopropionic Acid, industrial grade, Purity>95.0%; ammonium persulfate, industrial grade, Purity>99.5%; Sodium Hydroxide; deionized water etc
(2) Materials of fluidity test of cement paste: water reducer: 45%-concentration polycarboxylic type water reducer mother liquors at acid/ether ratios from 1.5:1 to 5.0:1,they are PE15, PE20, PE25, PE30, PE35, PE40, PE45, PE50 etc; cement P.O. 42.5 of different brands, including JinyuP.O.
Fund Project: Project supported by the natural science foundation of Beijing (2112012); Project supported by the fund of Beijing Education Committee(KM201210016009); The development project of Beijing Municipal University Innovation Team Building and teacher's occupation (KM201210016009); AUTHOR: Chong-Zhi Li, Doctor, adjunct professor, born in February 1969, from Shangrao Jiangxi province, director of Beijing university of civil engineering and architecture, school of civil and transportation engineering, Department of Materials Engineering, engaged in teaching of building material, and researching on high performance concrete and concrete admixture.
References [1] Li S,Wen Z Y,Wang H C.Synthesis of polycarboxylate-type superplasticizer and its effects on the performance of cement-based materials[J].Journal of the Chinese Ceramic Society, 2008 (7):884-889
Master's degree thesis of Beijing University of Technology.2010, 5 [4]Gong Chen, Xiu-Zhen Wei.Determination of Reactivity Ratios for Acrylic Esters by High Performance Liquid Chromatography [J] Journal of Beijing institute of technology. 2001,(5):658-662 [5]Xin Huang.
Online since: January 2012
Authors: Moussa Karama, S. Choukri
Introduction In materials characterizations and especially composites materials, there is a need in simplified and more reliable test procedures.
§ Material: Table 1.
Experimental characterization of delamination fracture.In Interlaminar Response of Composite Materials,ed N.J Pagano.
In Composites Science and Technology. ed Bryan, H.
Journal of Composite Materials, Vol.24- No.11, 1990, pp 1124-1137 [11].
Online since: December 2013
Authors: Yokoyama Seiji, Nik Hisyamudin Muhd Nor, Al Emran Ismail, Thirumoorthy Nathan, Zulkifli Ahmad, Shafizan Jaibee, Mohd Hafiz Burhan, Fariza Mohamad, Sia Chee Kiong
There are many health and environmental problems occurred from e-waste such as the toxic pollution from materials such as cadmium, chromium, lead, mercury, beryllium and many more.
There are several methods for the metal recovery from waste materials or by-product.
There are still very limited literatures on the e-waste management, handling and recovery process of hazardous materials in Malaysian e-waste industry.
Fray: Recovery of high purity precious metals from printed circuit boards, Journal of Hazardous Materials 164(2-3) (2009) p. 1152-1158
Robinson: E-waste: An assessment of global production and environmental impacts, Science of the Total Environment 408 (2009) p. 183-191
Online since: January 2020
Authors: Valentina Anatolyevna Poluektova
Shukhov at the development of innovative materials and composites for additive technologies.
Damme, Concrete material science: Past, present, and future innovations, Cement and Concrete Research 112 (2018) 5-24
Ermilov, Technological System and Units for Manufacturing of Fine and Ultrafine Materials, Transactions TSTU. 23(4) (2017) 680-687 [12] V.A.
Boitsova Mechanical Properties of Materials.
Ramachandran, 2nd Ed.: Properties, Science, and Technology, 1996
Online since: October 2014
Authors: Filipe Pereira
Operational Cost Analysis of a Typical South African High Pressure Die-Casting Business PEREIRA Filipe Engineering implementation Group, Light Metals, Materials Science and Manufacturing, Council for Scientific and Industrial Research, P.O.
Die casting uses significant quantities of energy, as well as materials like oil-based lubricants and cooling water.
Introduction The most common materials used in die casting to produce parts are non ferrous metals such as aluminium, zinc, brass and magnesium.
Application of new materials allied to new processing methods and acceptance of a novel casting technology requires extensive industry scale trials and experimentation before being widely accepted, applied and used by industry.
In: Journal Resources, Conservation and Recycling 52 (2008) 1185-1189
Online since: April 2017
Authors: Oluwole Daniel Makinde, Adetayo Samuel Eegunjobi
Ng [5] developed analytical solution for steady electro-osmotic flow of a visco-plastic material, namely, Casson fluid, through a parallel plate microchannel.
Ain Shams Engineering Journal (2016) [8] Mishra S.
S, Dissipation effect on MHD mixed convective flow over a stretching sheet through porous medium with non-uniform heat source/sink ,Ain Shams Engineering Journal
Journal of Mechanical Science and Technology, Vol. 26, No 5, 1615-1622, 2012
International Journal of Applied and Computational Mathematics (2017) pp 1-24 [21] Wood, L.C; Thermodynamics of Fluid Systems; Oxford University Press: Oxford, UK, 1975
Online since: March 2014
Authors: Qing Fang Zhou, Si Gui Xu
Card service center is mainly for writing, changing and supplementing campus material, and the production of various types of operating card, function card, stuck affairs management.
Journal of Sun Yat Sen University, Vol 6, pp.118-120, 2002 (in Chinese)
Education Sciences of China, Vol 1, pp. 62-63, 2002 (in Chinese)
Hwang, Password Authentication Schemes: Current Status and Key Issues.International Journal of Network Security, Vol 2, pp.101-115, 2006
Journal of Computer and System Sciences, Vol 72, pp.727-739, 2006