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Online since: August 2013
Authors: Li Jun Nie, Shi Kui Wu, Yang Liu Liu
The acid sludge is thereby recycled to become useful material and environmental pollution is reduced.
Experimental Part Instruments, Reagents and Raw Materials.(1)Instruments:an SX2-4-10 type high-temperature resistance furnace, an AY120 type electronic balance, a 722 type spectrophotometer, a UV755B type ultraviolet-visible spectrophotometer, a 101A-1 type drying oven, a YQ-Z-48B type whiteness analyzer.(2)Reagents:calcium carbonate and calcium hydroxide, which are both chemically pure.(3)Raw materials:the acid sludge generated in sulfuric acid preparation from lubricant oil products is black, viscous, odorous and soluble in water.
The high content of SO42- also shows the feasibility of preparing industrial calcium sulfate product by taking acid sludge as raw material.
Journal of Environmental Sciences, Vol.12(2009),p.1753-1760 [4] Fernandez JM, SenesiN, Plaza C.
Journal of Oil and Gas Technology(in Chinese),Vol.27(2005),p. 658-660
Experimental Part Instruments, Reagents and Raw Materials.(1)Instruments:an SX2-4-10 type high-temperature resistance furnace, an AY120 type electronic balance, a 722 type spectrophotometer, a UV755B type ultraviolet-visible spectrophotometer, a 101A-1 type drying oven, a YQ-Z-48B type whiteness analyzer.(2)Reagents:calcium carbonate and calcium hydroxide, which are both chemically pure.(3)Raw materials:the acid sludge generated in sulfuric acid preparation from lubricant oil products is black, viscous, odorous and soluble in water.
The high content of SO42- also shows the feasibility of preparing industrial calcium sulfate product by taking acid sludge as raw material.
Journal of Environmental Sciences, Vol.12(2009),p.1753-1760 [4] Fernandez JM, SenesiN, Plaza C.
Journal of Oil and Gas Technology(in Chinese),Vol.27(2005),p. 658-660
Online since: September 2013
Authors: Jie Xiao, Wei Min Qi
Semiconductor sources degradation occurs through the properties of semiconductor materials or the materials used for the fabrication.
Different types of materials and packages of LEDs have different degradation mechanisms.
Various approximate formulae’s have been reported based on different materials and the structure.
Kwark, “High-current electro-optical degradation of InGaN/GaN light emitting diodes fabricated with Ag-base reflector”, Journal of Korean Physical Society, vol.55, 2009, pp. 1128–1131
Shin, “Electrical, optical and thermal degradation of high power GaN/ In GaN light emitting diodes”, Journal of Physics D: Applied Physics, 2008
Different types of materials and packages of LEDs have different degradation mechanisms.
Various approximate formulae’s have been reported based on different materials and the structure.
Kwark, “High-current electro-optical degradation of InGaN/GaN light emitting diodes fabricated with Ag-base reflector”, Journal of Korean Physical Society, vol.55, 2009, pp. 1128–1131
Shin, “Electrical, optical and thermal degradation of high power GaN/ In GaN light emitting diodes”, Journal of Physics D: Applied Physics, 2008
Online since: June 2015
Authors: Mohamad Rusop, Shoichiro Ikeda, Shinji Kawasaki, Akinari Nobumoto, Hideo Ono, Shinji Ono
Introduction
Recently, various novel carbonous materials, such as fullerenes [1, 2], carbon nano-tubes (CNTs) [3], carbon nano-horns (CNHs) [4], graphene sheets [5], etc., have been developed.
Experimental Materials and method: The carbon nano-particles solution (suspension) was produced by direct current (DC) electrolysis using synthetic-graphite plates (Toho Carbon, Co., Ltd.) as the anode and SUS plates as cathodes in purified RO water at ambient temperature in SUS electrolytic cells.
Journal of Crystal Growth 50 (3) (1980) 675
Amari, Effect of a Surface Treatment of Carbon Black Particles on Flocculated Structure in Their Disperse Systems, Shikizai (Journal of Japan Society of Colour Materials), 70(9), (1997) 584-590.
Muhamad, Preparation and Applications of Hydrophilic Nano-Carbon Particles, Advanced Materials Research, 832 (2014) 767-772.
Experimental Materials and method: The carbon nano-particles solution (suspension) was produced by direct current (DC) electrolysis using synthetic-graphite plates (Toho Carbon, Co., Ltd.) as the anode and SUS plates as cathodes in purified RO water at ambient temperature in SUS electrolytic cells.
Journal of Crystal Growth 50 (3) (1980) 675
Amari, Effect of a Surface Treatment of Carbon Black Particles on Flocculated Structure in Their Disperse Systems, Shikizai (Journal of Japan Society of Colour Materials), 70(9), (1997) 584-590.
Muhamad, Preparation and Applications of Hydrophilic Nano-Carbon Particles, Advanced Materials Research, 832 (2014) 767-772.
Online since: June 2014
Authors: Hai Jun Xie
Although the fertilizer application is indirectly affected by the output of fertilizer raw materials through the fertilizer output, it reflected the importance of productive resources from one side (the factor of raw material price is not considered, because the price fluctuation is reflected by time-point data which is inconvenient for analysis, and it is inconvenient to collect historical data).
The closed condition refers to investigating the influence degree of changes in correlative factors on fertilizer application Y without considering the price fluctuation of raw materials on the international market, the import volume and the price fluctuation of fertilizers on the international market, mainly considering X1: the fertilizer price index, X2: the fertilizer output, and X3: the fertilizer application in the first lag period.
(In Chinese) [2] Chen Tongbin, Chen Shiqing and Xu Hongtao:Geography Journal, Vol53 (1)(1998),p. 32-41.
(In Chinese) [4] Zhang Linxiu and Xu Xiaoming: Journal of Agro-technical Economic, 1996 (4): 27-32.
(In Chinese) [7] Huang Jikun and Zhang Linxiu:Agricultural Science and Technology Investment and Economy in China.
The closed condition refers to investigating the influence degree of changes in correlative factors on fertilizer application Y without considering the price fluctuation of raw materials on the international market, the import volume and the price fluctuation of fertilizers on the international market, mainly considering X1: the fertilizer price index, X2: the fertilizer output, and X3: the fertilizer application in the first lag period.
(In Chinese) [2] Chen Tongbin, Chen Shiqing and Xu Hongtao:Geography Journal, Vol53 (1)(1998),p. 32-41.
(In Chinese) [4] Zhang Linxiu and Xu Xiaoming: Journal of Agro-technical Economic, 1996 (4): 27-32.
(In Chinese) [7] Huang Jikun and Zhang Linxiu:Agricultural Science and Technology Investment and Economy in China.
Online since: May 2015
Authors: R.O. Ocaya
King and G.J.Yates: Gamma ray spectrometer readout with linear CCD sensor, IEEE Transactions on Nuclear Science, 39 (5), pp. 1336-1340. (1992)
Wang: Near-infrared spectrometer optical sensor driving and peripheral circuit design, Applied Mechanics and Materials, 2nd International Conference on Industrial Design and Mechanics Power, ICIDMP 2013, Vol. 437 pp. 674-677 (2013)
Fang: Design of a High-Speed Image Data Real-Time Storage and Display Circuit, Advanced Materials Research, 912-914, 1222. http://dx.doi.org/10.4028/www.scientific.net/AMR.912-914.1222 (2014)
Yang: Design of spectral acquisition system based on the linear array CCD ILX554B, Applied Mechanics and Materials, 2014 International Conference on Mechatronics Engineering and Computing Technology, ICMECT 2014, Vol. 556-562, pp. 1926-1931 Code 105616. (2014)
Xu: Data acquisition for output signal of linear CCD, Applied Mechanics and Materials, 2011 - 3rd International Conference on Mechanical and Electronics Engineering, Vol. 130-134 pp. 2056-2059, ICMEE Hefei, China; 23-25 Code 87364. (2012)
Wang: Near-infrared spectrometer optical sensor driving and peripheral circuit design, Applied Mechanics and Materials, 2nd International Conference on Industrial Design and Mechanics Power, ICIDMP 2013, Vol. 437 pp. 674-677 (2013)
Fang: Design of a High-Speed Image Data Real-Time Storage and Display Circuit, Advanced Materials Research, 912-914, 1222. http://dx.doi.org/10.4028/www.scientific.net/AMR.912-914.1222 (2014)
Yang: Design of spectral acquisition system based on the linear array CCD ILX554B, Applied Mechanics and Materials, 2014 International Conference on Mechatronics Engineering and Computing Technology, ICMECT 2014, Vol. 556-562, pp. 1926-1931 Code 105616. (2014)
Xu: Data acquisition for output signal of linear CCD, Applied Mechanics and Materials, 2011 - 3rd International Conference on Mechanical and Electronics Engineering, Vol. 130-134 pp. 2056-2059, ICMEE Hefei, China; 23-25 Code 87364. (2012)
Online since: October 2015
Authors: Eva Rykalová, Radek Fabian, Zdeněk Peřina, Petr Jonšta
Ladle consists of steel shell and is lined by refractory material which must to resist very high temperature.
In the case of the long-term local overheating of certain place and the cooling is not sufficient with the regard to the material properties of the used material and it may result in its damage and destruction.
Material of the ingot mold affects the rate of solidification of steel ingot and thus its final quality [5].
International Journal of Civil and Environmental Engineering, 2013, roč. 35, č. 2, s. 1181-1191
In Archives of Materials Science and Engineering, 2012, Volume 58, Issue 1, p. 22-27, ISSN 1897-2764 [6] SMETANA B., ŽALUDOVÁ M., TKADLEČKOVÁ M., DOBROVSKÁ J., ZLÁ S., GRYC K., KLUS P., MICHALEK K., MACHOVČÁK P., ŘEHÁČKOVÁ L.: Experimental verification of hematite ingot mould heat capacity and its direct utilisation in simulation of casting proces.In Journal of Thermal Analysis and Calorimetry, 2013, Vol. 111, ISSN: 1388-6150 (Print), ISSN: 1572-8943 (online).
In the case of the long-term local overheating of certain place and the cooling is not sufficient with the regard to the material properties of the used material and it may result in its damage and destruction.
Material of the ingot mold affects the rate of solidification of steel ingot and thus its final quality [5].
International Journal of Civil and Environmental Engineering, 2013, roč. 35, č. 2, s. 1181-1191
In Archives of Materials Science and Engineering, 2012, Volume 58, Issue 1, p. 22-27, ISSN 1897-2764 [6] SMETANA B., ŽALUDOVÁ M., TKADLEČKOVÁ M., DOBROVSKÁ J., ZLÁ S., GRYC K., KLUS P., MICHALEK K., MACHOVČÁK P., ŘEHÁČKOVÁ L.: Experimental verification of hematite ingot mould heat capacity and its direct utilisation in simulation of casting proces.In Journal of Thermal Analysis and Calorimetry, 2013, Vol. 111, ISSN: 1388-6150 (Print), ISSN: 1572-8943 (online).
Online since: December 2010
Authors: A. Sheikholeslam, J. Rassizadehghani, Mahmoud Nili-Ahmadabadi
Nili Ahmadabadi, J.Rassizadehghani
Department of Metallurgy and Materials Engineering, University of Tehran
Ata.mat12@yahoo.com, nili@ut.ac.ir, j.ghani@ut.ac.ir
Keywords: Ductile Iron; Segregation; Partial Melting Homogenization; ADI; Mechanical Properties
Abstract.
Materials and Procedure Ductile iron ingots were melted in a medium frequency induction furnace and cast in CO2 sand moulds.
Janowak., "Review of austempered ductile iron metallurgy", Journal of Heat Treating, 1984, Vol. 1, pp 1-12
Mosallaiee-Pour, "Homogenization of ductile iron using partial melting aided by modeling", Materials Science and Engineering A, 2004, Vol. 373, pp. 309- 314 [8] G.R.
Morral,"Transient Liquid-phase Bonding in Two Phase Ternary Systems", Metallorgical and Materials Transactions A, April, 2000, Vol.31A,pp.11871192
Materials and Procedure Ductile iron ingots were melted in a medium frequency induction furnace and cast in CO2 sand moulds.
Janowak., "Review of austempered ductile iron metallurgy", Journal of Heat Treating, 1984, Vol. 1, pp 1-12
Mosallaiee-Pour, "Homogenization of ductile iron using partial melting aided by modeling", Materials Science and Engineering A, 2004, Vol. 373, pp. 309- 314 [8] G.R.
Morral,"Transient Liquid-phase Bonding in Two Phase Ternary Systems", Metallorgical and Materials Transactions A, April, 2000, Vol.31A,pp.11871192
Online since: January 2013
Authors: Wen Da Zhang, Jing Yang, Jing Zhi Dang, Yun Liu, Hong Xu
Effects of Si, Cu and Mg on the high-temperature mechanical properties of Al-Si-Cu-Mg alloy
Zhang Wenda1,a, Yang Jing , Dang Jingzhi, Liu Yun, Xu Hong
1School of Materials Science and Engineering, North University of China, Taiyuan 030051, China.
Materials and Methods An orthogonal L9 (34) table header was used in this study.
Influence of additives on the microstructure and tensile properties of near-eutectic Al–10.8%Si cast alloy, Materials and Design. 30 (2009) 3943–3957
Shabestari, H Moemeni, Effect of copper and solidification conditions on the microstructure and mechanical properties of Al–Si–Mg alloys, Journal of Materials Processing Technology. 153–154 (2004) 193-198
[7] Shengquan Dong, Jingen Zhou, Wen Yan, et al., Effects of Si, RE and Ti on hot cracking tendency of as-cast Al-Cu alloys (in chinese), The Chinese Journal of Nonferrous Metals. 12 (2002 Al Special) 80-84
Materials and Methods An orthogonal L9 (34) table header was used in this study.
Influence of additives on the microstructure and tensile properties of near-eutectic Al–10.8%Si cast alloy, Materials and Design. 30 (2009) 3943–3957
Shabestari, H Moemeni, Effect of copper and solidification conditions on the microstructure and mechanical properties of Al–Si–Mg alloys, Journal of Materials Processing Technology. 153–154 (2004) 193-198
[7] Shengquan Dong, Jingen Zhou, Wen Yan, et al., Effects of Si, RE and Ti on hot cracking tendency of as-cast Al-Cu alloys (in chinese), The Chinese Journal of Nonferrous Metals. 12 (2002 Al Special) 80-84
Online since: April 2014
Authors: Shan Shan Gong, Qi Sun, Cheng Jun Wang
Research on the chemical materials of 5-bromouridine 5'-β,g-dihalomethylenetriphosphates
Cheng-Jun Wanga, Shan-Shan Gongb, Qi Sun*,c
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University
605 Fenglin Avenue, Nanchang, Jiangxi 330013, PR China
aemail: wangchengjun_1989@163.com, bemail: gongshanshan33@gmail.com
cemail: sunqi96@tsinghua.org.cn
Keywords: nucleoside triphosphate; phosphoropiperidate; 4,5-dicyanoimidazole; bisphosphonate; 2,2¢-dithiodianiline
Abstract.
ROY, Journal of Organometallic Chemistry, Vol. 13(1968), p. 199 [22] C.E.
ROY, Journal of Organometallic Chemistry, Vol. 13(1968), p. 199 [22] C.E.
Online since: January 2016
Authors: Ismarul Nizam, Afifah Hanim Ahmad Termizi, Siti Norbaya Kasa, Nuruzatulifah Asari @ Mansor
Morphology and Structural Characteristic of Nanocrystalline Cellulose (NCC) Hydrolyzed from Filter Paper
NURUZATULIFAH Asari @ Mansora*, SITI NORBAYA Kasab,
ISMARUL NIZAM Ismailc, and AFIFAH HANIM Ahmad Termizid
Advanced Materials Research centre (AMREC) SIRIM Berhad, Lot 34, Jalan Hi-Tech 2/3, Kulim Hi-Tech Park, 09000 Kulim, Kedah, Malaysia
anuruzatul@sirim.my, bnorbaya@sirim.my, cismarul@sirim.my, dafifah@sirim.my
Keywords: Nanocrystalline cellulose, hydrolysis, filter paper
Abstract.
Due to these features, NCC is capable to be used as high-quality reinforcing agents in nanocomposites polymers and biodegradable materials [1, 2].
EXPERIMENTAL Materials.
Whatman No. 1 filter paper was used as a starting material for the NCCs extraction.
Argyropoulos, Production of cellulose nanocrystals using hydrobromic acid and click reactions on their surface, Journal of Material Science. 46 (2011) 7344
Due to these features, NCC is capable to be used as high-quality reinforcing agents in nanocomposites polymers and biodegradable materials [1, 2].
EXPERIMENTAL Materials.
Whatman No. 1 filter paper was used as a starting material for the NCCs extraction.
Argyropoulos, Production of cellulose nanocrystals using hydrobromic acid and click reactions on their surface, Journal of Material Science. 46 (2011) 7344