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Online since: February 2014
Authors: Wancheng Sittikijyothin, Chutimon Satirapipathkul, Pichet Duangsri
Introduction
Textile materials made from natural fibers provide a good environment for microbial growth, because of their large surface area and ability to retain moisture [1].
Many Synthetic chemicals have been employed to impart antimicrobial activity to textile materials.
Materials and Methods Materials.
Treatment with the extracts of Mango seed extract was carried out using material-to liquor ratio of 1:30 at 60oC and neutral pH for 45 min.
Alok: Journal of Pharmacy and Pharmaceutical Sciences Vol. 5 (2002), p. 12 [9] I.F.F.
Many Synthetic chemicals have been employed to impart antimicrobial activity to textile materials.
Materials and Methods Materials.
Treatment with the extracts of Mango seed extract was carried out using material-to liquor ratio of 1:30 at 60oC and neutral pH for 45 min.
Alok: Journal of Pharmacy and Pharmaceutical Sciences Vol. 5 (2002), p. 12 [9] I.F.F.
Online since: May 2014
Authors: Feng Kui Cui, Ya Fei Xie, Xiao Dan Dong, Li Min Hou
Simulation analysis of metal flow in high-speed cold roll-beating
Cui Feng-kui 1, a, Xie Ya-fei 1, b, Dong Xiao-dan 1, c, Hou Li-min 1 , d
Electromechanical Engineering College, Henan University of Science& Technology, Luoyang 471003, China
acuifk2008@163.com, bxieyafei0914@163.com, c15138757409@163.com, dhoulimin1111@126.com
Keywords: High-speed cold roll-beating; Flow law; Simulation; Analysis
Abstract.
Compared with traditional hobbing machining methods, it has higher production efficiency, higher strength of tooth surface, better abrasion resistance, less materials consumption, better continuity of internal organization, better comprehensive mechanical performance and other advantages.
Fig.3 Geometric model of Cold Roll-beating Meshing, Select of material model, Definition of contract condition and boundary conditions can be seen in Tab.1.
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] P.G.
Compared with traditional hobbing machining methods, it has higher production efficiency, higher strength of tooth surface, better abrasion resistance, less materials consumption, better continuity of internal organization, better comprehensive mechanical performance and other advantages.
Fig.3 Geometric model of Cold Roll-beating Meshing, Select of material model, Definition of contract condition and boundary conditions can be seen in Tab.1.
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] P.G.
Online since: November 2011
Authors: Ahmed S. AL-Ghamdi, Yeakub Ali Mohammad
AL-Ghamdi, Mohammad Yeakub Ali*
Department of Manufacturing and Materials Engineering
Faculty of Engineering, International Islamic University Malaysia
P.
Materials and Method HIPS was obtained from SABIC Company.
[2] Harris, P., Carbon Nanotubes Science Synthesis, Properties, and Applications, (UK, Cambridge, 2009), 179, 227-223
[3] McClory, C., Pötschke, P., and McNally, T., (2010), Influence of Screw Speed on Electrical and Rheological Percolation of Melt-Mixed High-Impact Polystyrene/MWCNT Nanocomposites, Macromolecules Materials Engineering, 296, 59-69
[6] Stabik, J., Suchoń, L., Rojek, M., Szczepanik, M., (2009) Investigation of Processing Properties of Polyamide Filled with Hard Coal, Journal of Achievements in Materials and Manufacturing Engineering, 33 (2).
Materials and Method HIPS was obtained from SABIC Company.
[2] Harris, P., Carbon Nanotubes Science Synthesis, Properties, and Applications, (UK, Cambridge, 2009), 179, 227-223
[3] McClory, C., Pötschke, P., and McNally, T., (2010), Influence of Screw Speed on Electrical and Rheological Percolation of Melt-Mixed High-Impact Polystyrene/MWCNT Nanocomposites, Macromolecules Materials Engineering, 296, 59-69
[6] Stabik, J., Suchoń, L., Rojek, M., Szczepanik, M., (2009) Investigation of Processing Properties of Polyamide Filled with Hard Coal, Journal of Achievements in Materials and Manufacturing Engineering, 33 (2).
Online since: May 2004
Authors: F.Z. Tepehan, Esra Özkan Zayim
During the last several decades, many materials have been examined with respect to their use
in display devices, energy efficient smart windows, large-area applications in electrochromics,
automotive mirror and sunglass products [1,2].
Transition metal oxides have been widely used as inorganic electrochromic materials.
Radhakrishnan, Materials Chemistry and Physics Vol. 77 (2003) p. 117
Granqvist, Handbook of Inorganic Electrochromic Materials, (Elsevier, Amsterdam 1995)
Kaneko Journal of Electroanalytical Chemistry (2003), In Press [7] W.C.
Transition metal oxides have been widely used as inorganic electrochromic materials.
Radhakrishnan, Materials Chemistry and Physics Vol. 77 (2003) p. 117
Granqvist, Handbook of Inorganic Electrochromic Materials, (Elsevier, Amsterdam 1995)
Kaneko Journal of Electroanalytical Chemistry (2003), In Press [7] W.C.
Online since: July 2008
Authors: Yan Xia Gao, X.J. Zhu, Zhi Meng Lu, Q. Chen, J.Q. Wang
Fig. 3 The material removal rate
effect by honing radial pressure
Fig. 2 The material removal rate
effect by Honing time
(a)The ordinary Honing oilstone plug heavy (b) The ultrasonic honing oilstone plug light
Fig. 4 The plug phenomenon of the oilstone
Contrast of Roughness.
The parameters of micro-honing are: Abrasive: CBN; Granularity: W20; Binder: S; Density: 100%; Test Materials: 42MnCr52, other conditions are same as the former.
Fig. 7 Optimized map of the material removal rate The best oilstone group and process parameters of Micro-honing are tested as follows.
Key Engineering Materials, Vol. 202-203, (2001), p. 407-410
Xu: Study on the ultrasonic vibration honing device for the large diameter cylinder (Nanchang University Journal.
The parameters of micro-honing are: Abrasive: CBN; Granularity: W20; Binder: S; Density: 100%; Test Materials: 42MnCr52, other conditions are same as the former.
Fig. 7 Optimized map of the material removal rate The best oilstone group and process parameters of Micro-honing are tested as follows.
Key Engineering Materials, Vol. 202-203, (2001), p. 407-410
Xu: Study on the ultrasonic vibration honing device for the large diameter cylinder (Nanchang University Journal.
Online since: May 2013
Authors: Meera Ramrakhiani, Sakshi Sahare
Luminescence of II-VI materials has been, and still is, an extremely active area of research.
Recently quantum dots are being explored as alternative emissive materials in view of their efficient, stable and tunable emission from the doped transition-metal ions [4-8].
ZnS:Cu is a well known luminescent material having a band gap of 3.7 eV at 300 K.
Erwin, Doped nanocrystals, Science, 319, (2008), 1776-1779
[27] Meera Ramrakhiani and Vikas Nogriya, Synthesis and characterization of zinc sulphide nanocrystals and zinc sulphide/polyvinyl alcohol nanocomposites for luminescence applications, Chapter in Book “Polymer processing and Characterization” Advances in Materials Science Volume 1 Ed.
Recently quantum dots are being explored as alternative emissive materials in view of their efficient, stable and tunable emission from the doped transition-metal ions [4-8].
ZnS:Cu is a well known luminescent material having a band gap of 3.7 eV at 300 K.
Erwin, Doped nanocrystals, Science, 319, (2008), 1776-1779
[27] Meera Ramrakhiani and Vikas Nogriya, Synthesis and characterization of zinc sulphide nanocrystals and zinc sulphide/polyvinyl alcohol nanocomposites for luminescence applications, Chapter in Book “Polymer processing and Characterization” Advances in Materials Science Volume 1 Ed.
Online since: February 2012
Authors: Bernd Griesbach, Marion Merklein, Christian Hezler, Joachim Hecht
If modern high strength materials are used, the forming limit criteria can also provide invalid predictions.
To be able to use these materials, forming simulation was deployed to ensure the producibility of car body components.
Possible analogies of materials with different strengths but comparable grain structure are also in the field of interest.
Journal of Materials.
Materials Sciences and Applications. 2(2011), 497-503 [5] Arrieux, R.; Bedrin, C.; Bovin, M.: Determination of an intrinsic forming limit stress diagram for isotropic sheets.
To be able to use these materials, forming simulation was deployed to ensure the producibility of car body components.
Possible analogies of materials with different strengths but comparable grain structure are also in the field of interest.
Journal of Materials.
Materials Sciences and Applications. 2(2011), 497-503 [5] Arrieux, R.; Bedrin, C.; Bovin, M.: Determination of an intrinsic forming limit stress diagram for isotropic sheets.
Online since: June 2008
Authors: Peter Groche, Clemens Müller, Tilman Bohn, Enrico Bruder
Thus a steady state is
reached in the processing zone where increasing strain has no more (or little) influence on the
materials properties i.e. its deformability, as it is typical for SPD-processes.
For cold forming processes materials would be used whose high performances do not limit the production process by exhausted formability.
Symp. on Materials Science, edited by A.R.
Vucic: Key Engineering Materials 344 (2007), p. 251 [11] P.
Jöckel: Journal of Materials Processing Technology 183 (2007), p. 249 [12] C.
For cold forming processes materials would be used whose high performances do not limit the production process by exhausted formability.
Symp. on Materials Science, edited by A.R.
Vucic: Key Engineering Materials 344 (2007), p. 251 [11] P.
Jöckel: Journal of Materials Processing Technology 183 (2007), p. 249 [12] C.
Online since: August 2013
Authors: Yong Gui He, Yan Zi Li
Energy is an important strategic material basis for supporting the social development and the national economy, China has proposed the "12th Five-Year Plan" stressed the scientific concept of development must be implemented conscientiously, to build a resource-saving and environment-friendly society.
Most of the energy of wind, solar, biomass and hydro only need one-time big investment, and materials are sourced locally, reducing costs later.
[5] Duoyun Wang and Xiuying Zhang: submitted to Journal of Research On Development (2011) [6] Xin Cao and The research group of central party school: submitted to Journal of Review of Economic Research (2011) [7] Wenjing Li: Fully implement the scientific concept of development to achieve sustainable economic and social development, the research of natural resources, ecological environment and sustainable development in Hebei Province (China Science and Technology Press, China 2006).
Most of the energy of wind, solar, biomass and hydro only need one-time big investment, and materials are sourced locally, reducing costs later.
[5] Duoyun Wang and Xiuying Zhang: submitted to Journal of Research On Development (2011) [6] Xin Cao and The research group of central party school: submitted to Journal of Review of Economic Research (2011) [7] Wenjing Li: Fully implement the scientific concept of development to achieve sustainable economic and social development, the research of natural resources, ecological environment and sustainable development in Hebei Province (China Science and Technology Press, China 2006).