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Online since: March 2015
Authors: Qi Lin, Yi Long Wang, Xiao Guang Wang
In the process of virtual flight test, motion control of model’s 6-DOF movement is a key topic, which directly affects the validity and accuracy of the experimental data.
The material of the ropes are Line 5 of Kevlar; rated output torque of the drive motor is, the rotational inertia of the drive system equivalent to the motor is, the viscous damping coefficient equivalent to the motor is; the transmission coefficient of the ball screws is ; the aircraft model is composed of ABS resin, it’s length is, it’s wingspan is , it’s height is .
Engineering Mechanics. 2010, 27(10): 230-234.
The material of the ropes are Line 5 of Kevlar; rated output torque of the drive motor is, the rotational inertia of the drive system equivalent to the motor is, the viscous damping coefficient equivalent to the motor is; the transmission coefficient of the ball screws is ; the aircraft model is composed of ABS resin, it’s length is, it’s wingspan is , it’s height is .
Engineering Mechanics. 2010, 27(10): 230-234.
Online since: March 2022
Authors: Yan Yan Meng, Ke Ke Shi, Qing Wang, Bin Sun, Ya Li, Shuai Jun Zhang
China
2State Key Laboratory of Aviation Precision Bearings, Luoyang 471039, P.R.
The raw material of the bearing is GCr15 and the technical indexes of the straightness VC2mp, parallelism VC2s and surface roughness Ra are 18μm, 28μm and 0.63μm, respectively. 2.2 Experiment Equipment.
[3] H, H, DING, L, B, HANG, Y, G, CHEN, Experimental Research of Surface Integrity for Precision Hard Turing Finished Bearing Rings, China Mechanical Engineering, Bearing. (08) (2016) 1066-1071
The raw material of the bearing is GCr15 and the technical indexes of the straightness VC2mp, parallelism VC2s and surface roughness Ra are 18μm, 28μm and 0.63μm, respectively. 2.2 Experiment Equipment.
[3] H, H, DING, L, B, HANG, Y, G, CHEN, Experimental Research of Surface Integrity for Precision Hard Turing Finished Bearing Rings, China Mechanical Engineering, Bearing. (08) (2016) 1066-1071
Online since: September 2013
Authors: Ning Zhao, Si Wei Pan, Zheng Le Wei
SCR catalyst was the key to the SCR operator, and catalyst activity was directly related to the performance of the overall system.
Table 1 Main parameters of the SCR catalyst Item Unit Quantity Type of catalyst — Homogeneous Honeycomb Catalyst substrate material — titania-based ceramic Outer wall thickness mm 0.95 Inner wall thickness mm 0.59±0.05 Cell opening mm 6.25 Cell pitch mm 6.87 Outer pitch mm 150±2.0 SCR Tester.
References [1] Boxiong Shen, Jianwei Shi, Tingting Yang, et al: Chemical Industry and Engineering Progress, Vol. 27(2008), p.64-67.In Chinese [2] Kang Liu, Hong Yu, Hong Yu, et al: Guangdong Electric Power, Vol. 22(2009), p.75-78.
Table 1 Main parameters of the SCR catalyst Item Unit Quantity Type of catalyst — Homogeneous Honeycomb Catalyst substrate material — titania-based ceramic Outer wall thickness mm 0.95 Inner wall thickness mm 0.59±0.05 Cell opening mm 6.25 Cell pitch mm 6.87 Outer pitch mm 150±2.0 SCR Tester.
References [1] Boxiong Shen, Jianwei Shi, Tingting Yang, et al: Chemical Industry and Engineering Progress, Vol. 27(2008), p.64-67.In Chinese [2] Kang Liu, Hong Yu, Hong Yu, et al: Guangdong Electric Power, Vol. 22(2009), p.75-78.
Online since: October 2011
Authors: Hui Rong Li, Li Gen Sun, Jia Quan Zhang
Research on Thermocouple Embedded Theory for Thermal State of CC Mould Copper Plate with High Casting Speed
Sun Ligen1, a Li Huirong1, b Zhang Jiaquan2,c
1School of Metallurgical and Energy, HEUU, Tangshan 063009, China
2 School of Metallurgical and Ecological Engineering, USTB, Beijing 100083, China
asunligen@heuu.edu.cn, blihuirong@heuu.edu.cn, cjqzhang@ustb.edu.cn
Keywords: mould copper plate; thermal state; high casting speed; breakout prevention
Abstract: High casting speed would change the thermal state of the mould copper plate, The coupled visco-elasto-plastic FEM models have been presented for thermal process analysis of steel shell and the mould copper plates.
Introduction Casting speed is one of the key technical parameters for continuous casting.
The major assumptions are as follows: 1) Casting speed and Casting temperature are constant value; 2) Casting speed with neglected thermal conduction in casting direction; 3) Small deformation of the mould plates and steel shell with only material nonlinearity; 4) The influence of the thermal convection of the molten steel at the solidifying front is described by equivalent thermal conductivities according to the local temperature; 5) Thermo-elastic-plastic model is adopted for the steel shell, and the thermo-elastic model is used for the copper plates.
Introduction Casting speed is one of the key technical parameters for continuous casting.
The major assumptions are as follows: 1) Casting speed and Casting temperature are constant value; 2) Casting speed with neglected thermal conduction in casting direction; 3) Small deformation of the mould plates and steel shell with only material nonlinearity; 4) The influence of the thermal convection of the molten steel at the solidifying front is described by equivalent thermal conductivities according to the local temperature; 5) Thermo-elastic-plastic model is adopted for the steel shell, and the thermo-elastic model is used for the copper plates.
Online since: May 2015
Authors: Marian Gheorghe, Ion Diaconu, Ion Mateias, Dragoș Iliescu
., considering a flexible level of details; defining the geographical location of the enterprise as support for material transportation optimisation; support for assigning roles and responsibilities within the enterprise.
The following constraints will apply to the enterprise model: - Defined organisation as well as the organisation type will be uniquely identified; the primary-key value are not allowed for modification as a general rule, but the corresponding name can be modified under the terms of traceability and information security; - The operating unit location is uniquely identified, only one location can be defined for each organisation unit, modification of location information is allowed under the terms of traceability and information security; - For each operating unit, a list of roles and responsibilities can be defined, by the enterprise decision; - Each role defined in connection with an operating unit can be resolved by a defined person (user), by enterprise decision
The general schema is intended for the case of a multi-org enterprise in the field of a manufacturing-to-order, engineering-to-order or a project based enterprise.
The following constraints will apply to the enterprise model: - Defined organisation as well as the organisation type will be uniquely identified; the primary-key value are not allowed for modification as a general rule, but the corresponding name can be modified under the terms of traceability and information security; - The operating unit location is uniquely identified, only one location can be defined for each organisation unit, modification of location information is allowed under the terms of traceability and information security; - For each operating unit, a list of roles and responsibilities can be defined, by the enterprise decision; - Each role defined in connection with an operating unit can be resolved by a defined person (user), by enterprise decision
The general schema is intended for the case of a multi-org enterprise in the field of a manufacturing-to-order, engineering-to-order or a project based enterprise.
Online since: January 2013
Authors: Yi Chuan Chen, Yue Hui Hu, Jun Chen, Hong Hao Hu
Microstructural, Optical and Electrical Properties of ZnO:Sn Thin Films Deposited by Sol-Gel Method
Jun Chena, Yuehui HUb, Honghao HUc, Yichuan Chend
School of Mechanical and Electrical Engineering, Jingdezhen Ceramic Institute, Jingdezhen, Jiangxi, 333000
achenjun921@126.com, b8489023@163.com, c746186383@qq.com, dlezhi2005@163.com
Keywords: Transparent oxide semiconductors; ZnO thin films; Sn doping; Sol-gel method
Abstract.
Introduction Zinc oxide (ZnO) is an n-type wide band gap semiconductor material with a direct band gap of 3.3 eV, the crystal exhibits a hexagonal wurtzite structure.
Acknowledgements This work was financially supported by the following funds: (1) the Natural Science Foundation of China (No. 61066003); (2) the JiangXi Province Key Technology R&D Program, China (No. 2010BGA01100); (3) the Natural Science Foundation of Jiangxi Province (No. 20111BAB202005); (4) The Jiangxi province foreign cooperation projects, China (No. 20111BDH80031); and (5) the Education Bureau of Jiangxi Province, China (No.
Introduction Zinc oxide (ZnO) is an n-type wide band gap semiconductor material with a direct band gap of 3.3 eV, the crystal exhibits a hexagonal wurtzite structure.
Acknowledgements This work was financially supported by the following funds: (1) the Natural Science Foundation of China (No. 61066003); (2) the JiangXi Province Key Technology R&D Program, China (No. 2010BGA01100); (3) the Natural Science Foundation of Jiangxi Province (No. 20111BAB202005); (4) The Jiangxi province foreign cooperation projects, China (No. 20111BDH80031); and (5) the Education Bureau of Jiangxi Province, China (No.
Online since: September 2013
Authors: Bao Cheng Gao, Zhao Li Yan, Xiao Bin Cheng, Bin Chen, Li Han
Fault Detection of Carbide Anvil based on Hurst Exponent and BP Neural Network
Li Han1,a, Bin Chen1,2,b, Baocheng Gao1,c, Zhaoli Yan2,d, Xiaobin Cheng2,e
1 School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China
2 Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
alilyhan1202@gmail.com,bbinchen@bupt.edu.cn,cbcgao@bupt.edu.cn,dzl_yan@mail.ioa.ac.cn, exb_cheng@mail.ioa.ac.cn
Keywords: Carbide Anvil, Acoustic Emission, Hurst Exponent, BP Neural Network.
The outside high temperature and pressure easily leads to micro-bend or distortion of material, and generate fracture AE signal.
Journal of Rock Mechanics and Engineering.
The outside high temperature and pressure easily leads to micro-bend or distortion of material, and generate fracture AE signal.
Journal of Rock Mechanics and Engineering.
Online since: February 2013
Authors: Lian Di Zhou, Ai Sheng Ren, Peng Jiang
Only in this way can we establish a scientific, feasible, credible, real, practical vegetable circulation efficiency evaluation index system.
3.1 The selection of evaluation factors
It is the key to select evaluation factors in the efficiency evaluation model of vegetable circulation.
References [1]Qianjin Sun, Plan and Construction of Agricultural Product Circulation System in Beijing (In Chinese) [M], China Material Press, 2011
[3]Cheng Liang, Zhao Meng, The Study of Logistics Enterprises Benefit Measure Norm with Delphi Method (In Chinese) [J], Logistics Engineering and Management. 2 (2010) 39-41
References [1]Qianjin Sun, Plan and Construction of Agricultural Product Circulation System in Beijing (In Chinese) [M], China Material Press, 2011
[3]Cheng Liang, Zhao Meng, The Study of Logistics Enterprises Benefit Measure Norm with Delphi Method (In Chinese) [J], Logistics Engineering and Management. 2 (2010) 39-41
Online since: February 2014
Authors: Shi Biao Zhou, Xiao Bing Huang, An Guo Xiao, Zhen Gan Chen, Yuan Dao Chen, Zhi Fu Xing
The conductive of composites made from polypyrrole and PBA-g-PMMA-GMA
Shibiao Zhoua,*, Xiaobing Huang, Anguo Xiao, Zhengan Chen, Yuandao Chen, Zhifu Xing
College of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde 415000, China
aZhsb1961@163.com
Keywords: Composite; conductive polymer; polppyrrole; uniform graft polymer; methyl methacrylate
Abstract.
Experimental Material.
Acknowledgments This work was supported by the construct program of the key discipline in Hunan province(Applied Chemistry).
Experimental Material.
Acknowledgments This work was supported by the construct program of the key discipline in Hunan province(Applied Chemistry).
Online since: March 2013
Authors: Guo Fang Hao
The Environment Design for Square Space
Guofang Hao
Hubei Engineering University, Xiaogan, 432000, China
hgf005@126.com
Key words: Square Space; Environment design; Design elements
Abstract.
Also some one stack, to expensive for the U.S., the material value and square quality as the same, even the outdoor plaza as an indoor auditorium to do, polished granite ground, carved white marble baluster ... ...
Also some one stack, to expensive for the U.S., the material value and square quality as the same, even the outdoor plaza as an indoor auditorium to do, polished granite ground, carved white marble baluster ... ...