Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: August 2013
Authors: Hai Jun Lv, Jing Wang
The first road is waste of time, manpower, material and financial resources, not to say that China cannot construct its own railway, but the introduction of core technology from abroad is a better choice.
Technological Collaborative Innovation Stage China's high-speed rail construction enterprises joint domestic famous scientific research institutes and universities, implement integration of industry science and technology research.
Patterns of technological learning and catch-up strategies in latecomer firms: Case study in China’s telecom-equipment industry, J.Journal of Technology Management in China.2011; [4] Mike Hobday, Howard Rush.Technology Management in Complex Product Systems(CoPS):Ten Questions Answered, J.
International Journal of Technology Management. 17(1999); [5] Kiely,Tom,Innovation Congregations, J.
China Engineering Science, 6(2007) 4-18; [14] Chen Jin, Zhou Zifan, Zhou Yongqing, Complex Product Systems Innovation Process Model, J.
Technological Collaborative Innovation Stage China's high-speed rail construction enterprises joint domestic famous scientific research institutes and universities, implement integration of industry science and technology research.
Patterns of technological learning and catch-up strategies in latecomer firms: Case study in China’s telecom-equipment industry, J.Journal of Technology Management in China.2011; [4] Mike Hobday, Howard Rush.Technology Management in Complex Product Systems(CoPS):Ten Questions Answered, J.
International Journal of Technology Management. 17(1999); [5] Kiely,Tom,Innovation Congregations, J.
China Engineering Science, 6(2007) 4-18; [14] Chen Jin, Zhou Zifan, Zhou Yongqing, Complex Product Systems Innovation Process Model, J.
Online since: September 2011
Authors: Jian Yi Kong, Gong Fa Li, He Gen Xiong, Jun Wei Liu, Min Zhou, Xing Dong Wang
Study on Intelligent Manufacturing System Model of Iron & Steel Enterprises in Ubiquitous Information Environment
Jun Wei Liu1,a, Jian Yi Kong1,b, Min Zhou1,c, Xing Dong Wang1,d,
He Gen Xiong1,e and Gong Fa Li1,f
1School of Manufacturing and Automation, Wuhan University of Science and Technology, Wuhan, China
aliujunwei@wust.edu.cn, bjykong_1961@yahoo.com.cn, cmichelle_zhoum@163.com, dxingdongwang@163.com,exionghegen@126.com, fligongfa@yahoo.com.cn
Keywords: Multi-dimensional ubiquitous information space, Iron & steel enterprise, Intelligent manufacturing system, Self-organization mechanism
Abstract.
The raw material M1 and M2 are made into final products P1 by planning processing route composed by different manufacturing units.
Journal of Digital Information, 2004, 5(4), p. 271
Journal of Materials Processing Technology 2003 (139), p. 488–498
Agile intelligent manufacture system reconfiguration study [J] digital manufacturing science, 2004, 2 (1-2), p. 1-36
The raw material M1 and M2 are made into final products P1 by planning processing route composed by different manufacturing units.
Journal of Digital Information, 2004, 5(4), p. 271
Journal of Materials Processing Technology 2003 (139), p. 488–498
Agile intelligent manufacture system reconfiguration study [J] digital manufacturing science, 2004, 2 (1-2), p. 1-36
Online since: September 2011
Authors: Yan Xin Lv, Cheng Bo Zhai, Xian He Weng, Meng Zhang, Bao Fu Duan
Based on the massive accumulated material carried out on Canshang gold mine and through the methods of supplementary exploration, geophysical exploration and field investigation, a detailed stability calculation and analysis are given to assess the slope stability.
Grouting material should be decided according to the particular reality.
Beijing: science press, 2008 [2] YingRen Zheng, Donald, etc.
Shaanxi qinba to disasters research [J].journal of soil and water conservation research, c. (5) : 20 to 24 [5].
Qinba landslide [J].china journal of geological disasters and prevention, 2009,15 (1) : 112 ~ 117
Grouting material should be decided according to the particular reality.
Beijing: science press, 2008 [2] YingRen Zheng, Donald, etc.
Shaanxi qinba to disasters research [J].journal of soil and water conservation research, c. (5) : 20 to 24 [5].
Qinba landslide [J].china journal of geological disasters and prevention, 2009,15 (1) : 112 ~ 117
Online since: September 2014
Authors: Feng Feng Bie, Chang Hua Liu, Zhi Ping Ren
In the river-crossing section, the pipelines’ own gravity, transported material gravity and the gravity of their accessories will increase the deformation of pipelines.
Pipelines’ natural frequency According to the structural mechanics, the pipelines’ natural frequency is (11) Where as pipelines’ quality, including the quality of pipeline itself, transported material, insulation layer, stable quality control measures, etc.; as the moment inertia of pipelines’ cross-section.
Daqing Petroleum Institute Journal, 2004 (1): 16
Xi'an Petroleum Institute: Natural Science Edition, 2003,18 (1) :47-50
Journal of Ocean University of China, 2006,36 (1) :168-172.
Pipelines’ natural frequency According to the structural mechanics, the pipelines’ natural frequency is (11) Where as pipelines’ quality, including the quality of pipeline itself, transported material, insulation layer, stable quality control measures, etc.; as the moment inertia of pipelines’ cross-section.
Daqing Petroleum Institute Journal, 2004 (1): 16
Xi'an Petroleum Institute: Natural Science Edition, 2003,18 (1) :47-50
Journal of Ocean University of China, 2006,36 (1) :168-172.
Online since: November 2014
Authors: Guo Qiang Xia, Hua Yang, Chun Hua Sun, Yu Liang Zhong, Lin Yang, Wei Kang Dang
The material factors
The insulation pipes
Whether they are good insulation pipes can result in the frostbite of the condensation equipment and other questions, and the better insulation, the lower the score.
The material of the pipeline The more difficult to damage and corrode, the lower the score.
The state of sealed According to the sealing state between the pipes, the better sealing material, and the lower the score.
Journal of Safety Science and Technology, Vol7 No10,2010: 93-99 [3] Wen-he WANG, Jun YI, Shiming SHEN.
Journal of Safety Science and Technology.
The material of the pipeline The more difficult to damage and corrode, the lower the score.
The state of sealed According to the sealing state between the pipes, the better sealing material, and the lower the score.
Journal of Safety Science and Technology, Vol7 No10,2010: 93-99 [3] Wen-he WANG, Jun YI, Shiming SHEN.
Journal of Safety Science and Technology.
Online since: February 2014
Authors: Wu Zhao, Wei Tao Jia, Quan Bin Zhang, Zhan Qi Hu
So,
(15)
Case Calculation and Simulation on System Stability
The material of BTA deep-hole boring bar is forging high alloy steel, where E = 214×103 Mpa, G = 82.9×103 Mpa, ρs=7.87×103 kg/m3 and ρf=0.865×103 kg/m3, ν = Q / Af,, Q = 1500 l/min, where the range of v is 5 m/s ≤ ν ≤ 15 m/s.
Acknowledgment This research is financially supported by the National Science Foundation under grant No. 51075126.
International Journal of Mechanical Sciences, 1999, 41: 1301-1322 [2] Hu Zhanqi, Zhao Wu.
Chinese Journal of Mechanical Engineering, 2005, 41(1): 230~233 [3] Zhao Wu.
Key Engineering Materials, v 455, p 575-579, 2011.
Acknowledgment This research is financially supported by the National Science Foundation under grant No. 51075126.
International Journal of Mechanical Sciences, 1999, 41: 1301-1322 [2] Hu Zhanqi, Zhao Wu.
Chinese Journal of Mechanical Engineering, 2005, 41(1): 230~233 [3] Zhao Wu.
Key Engineering Materials, v 455, p 575-579, 2011.
Online since: January 2013
Authors: Wei Song, Li Zhang, Xue Li Xu
Materials and instruments
78% (w/w) methamidophos emulsifiable concentrates was purchased from Jiahua Company in Zhejiang;Anatase titanium dioxide, P25 was supplied by Grease Chemical Plant in Nanjing;Fenton Reagent was propared by labs;Sodium hydroxide and Sulfuric acid (AR) were supplied by Tianjin Chemical Reagent Plant; Probing type ultrasonic generator was purchased from Tianhong testing equipment company in Siping ;500W high-voltage mercury lamp were supplied by Shanghai Ouwei Lighting Equipment company.; high performance liquid chromatography (Dionex UltiMate 3000 HPLC)was purchased from USA.
2.
hydroxy is the main reason of photocatalytic degradation, however, ultrasonic wave can induce the formation of these perssad in water[7]. 2) Photochemical catalyst's particle fragmentation can increase surfacel area of fixed particles, and provide more efficient activity to increase hydroxy and the other oxidation perssad. 3) Ultrasonic wave's surface cleaning function can get rid of absorbing material on the surface of catalyst to prevent it inactivation. 2. the influence of initial concentration on the degradation rate Preparing respectively methamidophos waste solution with concentration of 100 mg/L, 300 mg/L and 600mg/L, adding 0.6g anatase TiO2 powder, entering air and stirring for 30 minutes ,then the wastewater was degradated by sonophotocatalytic oxidation technology .
Environmental Science Journal.
Environ-mental Science & Technology, vol40, (2006).p.3775–3781
International Journal of Environmental Analytical Chemistry, vol87, (2007).p.1079–1093
hydroxy is the main reason of photocatalytic degradation, however, ultrasonic wave can induce the formation of these perssad in water[7]. 2) Photochemical catalyst's particle fragmentation can increase surfacel area of fixed particles, and provide more efficient activity to increase hydroxy and the other oxidation perssad. 3) Ultrasonic wave's surface cleaning function can get rid of absorbing material on the surface of catalyst to prevent it inactivation. 2. the influence of initial concentration on the degradation rate Preparing respectively methamidophos waste solution with concentration of 100 mg/L, 300 mg/L and 600mg/L, adding 0.6g anatase TiO2 powder, entering air and stirring for 30 minutes ,then the wastewater was degradated by sonophotocatalytic oxidation technology .
Environmental Science Journal.
Environ-mental Science & Technology, vol40, (2006).p.3775–3781
International Journal of Environmental Analytical Chemistry, vol87, (2007).p.1079–1093
Online since: October 2010
Authors: Jie Tao Dai, Qing Dong Zhang
In the
temper rolling, that the rolling force is due to change of the elongation or material change.
Thickness Material Cross bow 8941052600 0.24 MR T-4CA 50mm 8941052400 0.24 MR T-4CA 42mm 8941052700 0.24 MR T-4CA 45mm 8941052500 0.24 MR T-4CA 43mm Table 3 The value of cross bow after measure application Coil No.
Acknowledgements Item Sponsored by National Natural Science Foundation of China (50675021 and 51075031).
References: [1] Toshirou Fujwara, Tetsu Matoba and Yasuhiro Itazuri: Journal of the JSTP, Vol.38 (1997) No.440, p.819
[6] Yao Weian and Yang Haitian: International Journal of Solids and Structures, Vol.38 (2001) No.32, p.5807
Thickness Material Cross bow 8941052600 0.24 MR T-4CA 50mm 8941052400 0.24 MR T-4CA 42mm 8941052700 0.24 MR T-4CA 45mm 8941052500 0.24 MR T-4CA 43mm Table 3 The value of cross bow after measure application Coil No.
Acknowledgements Item Sponsored by National Natural Science Foundation of China (50675021 and 51075031).
References: [1] Toshirou Fujwara, Tetsu Matoba and Yasuhiro Itazuri: Journal of the JSTP, Vol.38 (1997) No.440, p.819
[6] Yao Weian and Yang Haitian: International Journal of Solids and Structures, Vol.38 (2001) No.32, p.5807
Online since: January 2013
Authors: Alan C. Lin, Tsong Der Lin
Lin1,b
1Department of Mechanical Engineering, National Taiwan University of Science and Technology
43, Sec. 4, Keelung Road, Taipei 106, TAIWAN
atedlin@mail.sju.edu.tw, balin@mail.ntust.edu.tw
Keywords: CNC, CL Data, NC block, Interpolation.
Its controller is a Siemens 840D, the workpiece material is ABS, and the size is 83mm * 83mm* 40mm.
K. , in: A spherical two-circle approach to determining rotation angles for 5-axis NC machines with orthogonal rotation axes, Proceedings of IEEE International Conference on Computer Science and Automation Engineering, Zhangjiajie, China, May 25-27, 2012, Vol. 3, pp. 675-679
[2] Chen-Hua She and Chun-Cheng Chang, in: Design of a generic five-axis postprocessor based on generalized kinematics model of machine tool, International Journal of Machine Tools and Manufacture, 2007, Vol. 47, pp. 537-545
[3] Chen-Hua She and Chun-Cheng Chang, in: Development of a five-axis postprocessor system with a nutating head, Journal of Materials Processing Technology, 2007, 187-188, pp. 60–64.
Its controller is a Siemens 840D, the workpiece material is ABS, and the size is 83mm * 83mm* 40mm.
K. , in: A spherical two-circle approach to determining rotation angles for 5-axis NC machines with orthogonal rotation axes, Proceedings of IEEE International Conference on Computer Science and Automation Engineering, Zhangjiajie, China, May 25-27, 2012, Vol. 3, pp. 675-679
[2] Chen-Hua She and Chun-Cheng Chang, in: Design of a generic five-axis postprocessor based on generalized kinematics model of machine tool, International Journal of Machine Tools and Manufacture, 2007, Vol. 47, pp. 537-545
[3] Chen-Hua She and Chun-Cheng Chang, in: Development of a five-axis postprocessor system with a nutating head, Journal of Materials Processing Technology, 2007, 187-188, pp. 60–64.
Online since: September 2013
Authors: Qi Liu, Ping Zhang, Guang Yao Ouyang
The result indicates that the point of the highest temperature and the maximum thermal stress locates on the middle nose of fire deck; under thermal-mechanism coupled effect, the points of maximum stress locate on the interface of bolt head and screw of cylinder head and on the middle nose of fire deck; the maximum pull stress the cylinder head undertook is less than that the material can survive; the distortion of the cylinder head is very small, thus has little influence on the fabrication of other accessories, and the global distortion of cylinder head performs symmetry.
In the global stress field of cylinder head, the maximum pull stress located on the interface of motherboard and upper cooling jacket which was 110.982MPa and didn’t exceed the concessional pull stress 300MPa[7] of the cylinder head material(HT300CuCr).
Journal of Chongqing Institute of Technology(Natural Science). 2008,22(10):24-27 [3] Zhang Ping.
Huazhong University of Science and Technology. 2004:3-4.
In the global stress field of cylinder head, the maximum pull stress located on the interface of motherboard and upper cooling jacket which was 110.982MPa and didn’t exceed the concessional pull stress 300MPa[7] of the cylinder head material(HT300CuCr).
Journal of Chongqing Institute of Technology(Natural Science). 2008,22(10):24-27 [3] Zhang Ping.
Huazhong University of Science and Technology. 2004:3-4.