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Online since: July 2014
Authors: He Gao Wu, Chang Zheng Shi, Yuan Liu
The material mechanical parameters were list in Table.1.
(a) (b) Fig.2: (a) FE model (b) Meshes of support Table.1 Material mechanical parameters Material Elastic Modulus(GPa) Poisson Ratio Bulk Density(kN·m-3) Steel 206 0.3 78.5 Concrete 25.5 0.167 25.0 Bedrock 5 0.2 26.0 Calculation conditions The earthquake wave shown in Fig.3 with the peak ground acceleration 2.76 m·s-2 was chosen in the dynamic analysis.
Acknowledgements This work was financially supported by the Chinese Post-doctoral Science Foundation (2013M542058).
Journal of Hydroelectric Engineering 2012; 31(2) : p. 198-205.( In Chinese) [5] R.Xu: Research on multiple poundings of bridges under vertical earthquakes.
International Journal of Impact Engineering 2002;(27): p. 153-160
(a) (b) Fig.2: (a) FE model (b) Meshes of support Table.1 Material mechanical parameters Material Elastic Modulus(GPa) Poisson Ratio Bulk Density(kN·m-3) Steel 206 0.3 78.5 Concrete 25.5 0.167 25.0 Bedrock 5 0.2 26.0 Calculation conditions The earthquake wave shown in Fig.3 with the peak ground acceleration 2.76 m·s-2 was chosen in the dynamic analysis.
Acknowledgements This work was financially supported by the Chinese Post-doctoral Science Foundation (2013M542058).
Journal of Hydroelectric Engineering 2012; 31(2) : p. 198-205.( In Chinese) [5] R.Xu: Research on multiple poundings of bridges under vertical earthquakes.
International Journal of Impact Engineering 2002;(27): p. 153-160
Online since: February 2011
Authors: Xiang Qian Jiang, Pan Wang, Jin Xing Wang
Introduction
The improved GPS system for specification and verification of workpiece geometry is an engineering tool for product development and manufacturing, which is necessary as companies rapidly move ahead with new technologies, new manufacturing processes, new materials and technically advanced products in an environment of international outsourcing [1].
Concerning the expression of measurement uncertainties, the GUM [9] and ISO 14253-2 [10] offer methods to determinate their origins and of quantifying the latter (physical and chemical phenomena, mathematical modeling of the understood phenomena, interactions between materials and operating conditions).
Proceedings of the Second International Symposium on Instrumentation Science and Technology [C].
The International Journal of Advanced Manufacturing and Technology Vol.28(2006), p.1169 – 1174 [16] Michael Krystek.
Measurement Science and Technology Vol.12(2001), p.63 – 67
Concerning the expression of measurement uncertainties, the GUM [9] and ISO 14253-2 [10] offer methods to determinate their origins and of quantifying the latter (physical and chemical phenomena, mathematical modeling of the understood phenomena, interactions between materials and operating conditions).
Proceedings of the Second International Symposium on Instrumentation Science and Technology [C].
The International Journal of Advanced Manufacturing and Technology Vol.28(2006), p.1169 – 1174 [16] Michael Krystek.
Measurement Science and Technology Vol.12(2001), p.63 – 67
Online since: May 2014
Authors: Hong Wang, Hai Bo Li, Xue Dong Lv, Peng Fei Wang, Ji Fu Ma
Materials and Methods
Study area and Sampling
A typical Pb-Zn smelting slags dump was chosen for the present study, and the soil samples were collected (0-20cm) from slags dump and varying distances from the center of slags dump, which were showed and described in Table 1 and Fig.1.
Reagent blanks, 10% duplicated samples and soil standard reference materials were employed to check the accuracy of analysis.
Characterizing spatial distribution and sources of heavy metals in the soils from mining-smelting activities in Shuikoushan, Hunan Province, China Journal of Environmental Sciences, 2009,21:1230–1236
China Agricultual Science and Technology Press
Journal of Shenyang Jianzhu University (Natural Science), 2006, 22(4): 626-628,652.
Reagent blanks, 10% duplicated samples and soil standard reference materials were employed to check the accuracy of analysis.
Characterizing spatial distribution and sources of heavy metals in the soils from mining-smelting activities in Shuikoushan, Hunan Province, China Journal of Environmental Sciences, 2009,21:1230–1236
China Agricultual Science and Technology Press
Journal of Shenyang Jianzhu University (Natural Science), 2006, 22(4): 626-628,652.
Online since: February 2019
Authors: Aleksandr Vasilyevich Pitukhin, Sergey Borisovich Vasilyev, Nikolai Gennadievich Panov
The water absorption of all types of particle boards reduced up to 50%
Introduction
At present, there is a tendency to involve low-grade wood raw materials in the fabrication of particle boards.
Materials and Method The raw material for the manufacturing of boards was low-grade wood with bark, containing up to 30% of rot.
Chemical Engineering Journal. 285 (2016) 439–448
Kolesnikov, Nanostructure of glue and strength of wood particle board, Austrian Journal of Technical and Natural Sciences. 7-8 (2014) 22-24
Materials Science Forum, 860 (2016) 73-77 / www.scientific.net/MSF.860.73 [9] Panov N.G., Improvement of strength properties of wood materials by nanotechnologies.
Materials and Method The raw material for the manufacturing of boards was low-grade wood with bark, containing up to 30% of rot.
Chemical Engineering Journal. 285 (2016) 439–448
Kolesnikov, Nanostructure of glue and strength of wood particle board, Austrian Journal of Technical and Natural Sciences. 7-8 (2014) 22-24
Materials Science Forum, 860 (2016) 73-77 / www.scientific.net/MSF.860.73 [9] Panov N.G., Improvement of strength properties of wood materials by nanotechnologies.
Online since: July 2015
Authors: Xian Ming Chen, Qing Lin Pan
Materials and Experimental Procedures
The experimental material was AZ91 magnesium alloy, and its chemical composition(wt.%) shows down: Al: 8.56, Mn: 0.82, Zn: 0.41, Mg: Bal..
Materials China, 2010,8(2010)37-45
Corrosion Science, 52(2010)1285−1290
Journal of Alloys and Compounds, 389 (2005)169-176
Applied Surface Science, 261 (2012)774– 782
Materials China, 2010,8(2010)37-45
Corrosion Science, 52(2010)1285−1290
Journal of Alloys and Compounds, 389 (2005)169-176
Applied Surface Science, 261 (2012)774– 782
Online since: February 2013
Authors: Ping Ning, Quan Li Feng, Yu Jia, Xue Qian Wang
Research on Active Carbon adsorption for the Amoxicillin wastewater
Quanli Feng1, a, Xueqian Wang2,b ,Yu Jia1,c, Ping Ning2,d*
1 Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650224, China
2 Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
afengquanli0871@yahoo.com.cn,bwxqian3000@yahoo.com.cn,cjyu@sina.com, d*ningping58@sina.com(Corresponding author)
Keywords: amoxicillin production wastewater, active carbon, adsorption.
Materials.
Depending on the source of raw materials, manufacturing methods, appearance, application and materials, activated carbon can be divided into many forms.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No. 51268021, No.
Advanced Materials Research, 396-398(2012), p 1819-1824
Materials.
Depending on the source of raw materials, manufacturing methods, appearance, application and materials, activated carbon can be divided into many forms.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No. 51268021, No.
Advanced Materials Research, 396-398(2012), p 1819-1824
Online since: November 2016
Authors: Hui Zhang, Jia Min Hu, Xian Kun Ji, Ding Fa Fu, Fu Lin Jiang
Progress in Materials Science. 2006;51:881-981
Progress in Materials Science. 2008;53:893-979
Materials Science and Engineering: A. 2004;382:30-4
Materials Science and Engineering: A. 2014;612:131-9
Progress in Materials Science. 2014;60:130-207
Progress in Materials Science. 2008;53:893-979
Materials Science and Engineering: A. 2004;382:30-4
Materials Science and Engineering: A. 2014;612:131-9
Progress in Materials Science. 2014;60:130-207
Online since: September 2017
Authors: S.V. Davydov, A.O. Gorlenko
This theory is based on modern achievements of material science and solid-state physics in the field of structural self-organization of materials and takes into account the specific features of structural and energetic adaptability of materials in friction.
Kostecki, Surface strength of materials in friction, Tekhnika, Kiev, 1976
Ivanova, Synergetics: Strength and fracture of metallic materials, Nauka, Moscow, 1992
Kostetskiy, Structural and energy conformability of materials in friction.
Gorlenko, Tribological tests of surfaces of parts by standardized method, Engineering journal. 10 (2009) 22-24
Kostecki, Surface strength of materials in friction, Tekhnika, Kiev, 1976
Ivanova, Synergetics: Strength and fracture of metallic materials, Nauka, Moscow, 1992
Kostetskiy, Structural and energy conformability of materials in friction.
Gorlenko, Tribological tests of surfaces of parts by standardized method, Engineering journal. 10 (2009) 22-24
Online since: June 2013
Authors: Dong Mok Lee, Hoon Hee Lee, Sang Ryong Lee, Seung Han Yang, Wei Wang
Based on the kinematics and material mechanics, the gripper motion is analyzed.
Acknowledgements This work was supported by the Priority Research Centers Programs through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012-0005856) Corresponding Author Prof.
Roch: Journal of Micromechanics and Microengineering Vol. 13 (2003), p. 330 [4] Y.Zhou and B.
Popovic: Journal of Micromechanics and Microengineering Vol. 12 (2003), p. 430 [6] Specification of Miniature OEM motors: SQ-100-N (New Scale Tech.)
Acknowledgements This work was supported by the Priority Research Centers Programs through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012-0005856) Corresponding Author Prof.
Roch: Journal of Micromechanics and Microengineering Vol. 13 (2003), p. 330 [4] Y.Zhou and B.
Popovic: Journal of Micromechanics and Microengineering Vol. 12 (2003), p. 430 [6] Specification of Miniature OEM motors: SQ-100-N (New Scale Tech.)
Online since: June 2013
Authors: Chun Lin Liu
The turning accuracy of Machine Tool Spindle and grinding process system were analyzed to guarantee the grinding accuracy and cutting accuracy of the whole machine material.
Table 1 Geometric accuracy requirements Testing Item Error Source Radial flop of spindle journal (permitted amount: 1.5μm) Flop of spindle blade shoulder (permitted amount: 1.5μm) Radial flop of spindle cone location hole (permitted amount: 1.5μm) Cylinder detected surface 1.roundness error 0 0 2.offset error between the axis of detected surface and rotating axis 0 0 3. deviation of the rotating axis 0 0 Plane detected surface 4.flatness error of the detected surface 0 5. verticality error between detected surface and rotating axis 0 6.periodic axial displacement of rotating axis 0 0 Table 2 Error modified of two technique methods Error of the detected surface Technique method 1.Space directional fitting method 2. self-grinding method Cylinder detected surface 1.roundness error Can not be modified partly modified 2.offset error between the axis of detected surface and rotating axis Obviously modified Obviously modified 3. deviation
The accuracy of spindle part was higher than domestic common machine according drawing(The roundness of spindle bearing journal is 0.8μm, the coaxiality between the frontier bearing and the behind bearing is 1μm, the radial run-out is 0.8μm, the verticality between shaft shoulder and bearing surface axis is 1μm, the radial run-out between 30oC inner cone positioning core and bearing surface is 1.2μm ).The last three geometric accuracy of CG6120 lathe spindle assembled by space directional fitting method shown as Table 1 was difficulty to reach 1.5μm..
Reference [1] Zhao Rufu: Metal Mechanical Processing Technique Manual, Shanghai, Shanghai Science Technology Press (2004)
Table 1 Geometric accuracy requirements Testing Item Error Source Radial flop of spindle journal (permitted amount: 1.5μm) Flop of spindle blade shoulder (permitted amount: 1.5μm) Radial flop of spindle cone location hole (permitted amount: 1.5μm) Cylinder detected surface 1.roundness error 0 0 2.offset error between the axis of detected surface and rotating axis 0 0 3. deviation of the rotating axis 0 0 Plane detected surface 4.flatness error of the detected surface 0 5. verticality error between detected surface and rotating axis 0 6.periodic axial displacement of rotating axis 0 0 Table 2 Error modified of two technique methods Error of the detected surface Technique method 1.Space directional fitting method 2. self-grinding method Cylinder detected surface 1.roundness error Can not be modified partly modified 2.offset error between the axis of detected surface and rotating axis Obviously modified Obviously modified 3. deviation
The accuracy of spindle part was higher than domestic common machine according drawing(The roundness of spindle bearing journal is 0.8μm, the coaxiality between the frontier bearing and the behind bearing is 1μm, the radial run-out is 0.8μm, the verticality between shaft shoulder and bearing surface axis is 1μm, the radial run-out between 30oC inner cone positioning core and bearing surface is 1.2μm ).The last three geometric accuracy of CG6120 lathe spindle assembled by space directional fitting method shown as Table 1 was difficulty to reach 1.5μm..
Reference [1] Zhao Rufu: Metal Mechanical Processing Technique Manual, Shanghai, Shanghai Science Technology Press (2004)