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Online since: October 2013
Authors: En Chuang Wang, Sheng Wang, Chun Yan Dai, Chun Yan Li
Study on dynamic relationship between economic growth and energy consumption in Chongqing- Based on 1980-2011 data
Wang Sheng1, a ,Dai Chunyan2,b ,Wang Enchuang3,c ,Li Chunyan 4,d
1Chongqing Acadmey of Sccial Sciences,Chongqing,400030,China
2Chongqing Technologies and Business University, Chongqing, 400067, China
3Business Administration College, Chongqing University of Technology, Chongqing 400050,China
4Chongqing Acadmey of Sccial Sciences,Chongqing,400030,China
a3120028@qq.com,bdaichunyan@ctbu.edu.cn,cwangenchuang@163.com,d65328836@qq.com
Key Words: economic growth; energy consumption; VAR model; impulse response
Abstract: Analyzed the dynamic interaction characteristics of Chongqing Economic growth and energy consumption between 1980-2011 based on vector auto regression model, impulse response function.
Introduction Energy is an important strategic material for national economic and social development.
Acknowledgements This work was financially supported by Chongqing ‘s major decisions advisory research (2012-ZD12), National society science Foundation(12XJY016);Chongqing Natural Science Foundation (cstc2011jjA90008).
Journal of Energy and Development. 3(1978),p.401-403
Journal of Electricity and employment. 13(1987),p.113-122
Introduction Energy is an important strategic material for national economic and social development.
Acknowledgements This work was financially supported by Chongqing ‘s major decisions advisory research (2012-ZD12), National society science Foundation(12XJY016);Chongqing Natural Science Foundation (cstc2011jjA90008).
Journal of Energy and Development. 3(1978),p.401-403
Journal of Electricity and employment. 13(1987),p.113-122
Online since: November 2024
Authors: Aldino Javier Saviola, Karna Wijaya, Marini Fairuz Vebryana, Iip Izul Falah
To use fossil fuel for a longer time and use new materials that are not necessarily mixed with fossil fuel, a booster of ether compounds that could be produced from alcohol is needed.
Experimental Materials The chemical used in the experiment were n-propanol, AgNO3, HNO3 65%, HCl 37%, H2O2 20%, CrO3, NaCl, Ca(OH)2, FeCl3·6H2O, acetone, and ammonia which were in p.a. quality from Merck.
References [1] Houdkova, L., Boran, J., Pecek, J., and Sumpela P., 2008, Thermal Science,12, 4, 27-33
[8] Gopal, S. and Smirniotis P.G., 2002, Journal of Catalyst, 205, 231-243
[9] Ma, D., Wang, D., Su, L., Shu, Y., Xu, Y., and Bao, X., 2002, Journal of Catalyst, 208, 260-269
Experimental Materials The chemical used in the experiment were n-propanol, AgNO3, HNO3 65%, HCl 37%, H2O2 20%, CrO3, NaCl, Ca(OH)2, FeCl3·6H2O, acetone, and ammonia which were in p.a. quality from Merck.
References [1] Houdkova, L., Boran, J., Pecek, J., and Sumpela P., 2008, Thermal Science,12, 4, 27-33
[8] Gopal, S. and Smirniotis P.G., 2002, Journal of Catalyst, 205, 231-243
[9] Ma, D., Wang, D., Su, L., Shu, Y., Xu, Y., and Bao, X., 2002, Journal of Catalyst, 208, 260-269
Online since: January 2022
Authors: Dan Zheng, Nan Dong, Ke Cao, Chen Xi Si
Introduction
Many materials added with bisphenol A (BPA) are widely used in industrial product manufacturing for their good corrosion resistance, such as canned food packaging, mineral water bottles, inner coatings of medical equipment, etc.
References [1] Kalmykova Y, Moona N, Stroemvall A M and Bjorklund K 2014 Water Research 56(1) 246 [2] Chang H S, Choo K H, Lee B and Choi S J 2009 Journal of Hazardous Materials 172(1) 1 [3] Wu S.Y, Xu Q, Chen T S, Wang M, Yin X Y, Zhang N.P, Shen Y Y, Wen Z Y and Gu Z.Z 2010 Chin J Anal Chem 38(4) 503 [4] Olmo M D, Gonzalez-Casado A, Navas N A and Vilchez J L 1997 Analytica Chimica Acta 34 (6) 87 [5] Maragou N C, Lampi E N, Thomaidis N S and Koupparis M A 2006 J.
A 1129 165 [6] Wang S H, Wei X T, Du L Y and Zhuang H S 2005 Luminescence 20 46 [7] Shen R Y, Zhang W M, Yuan Y, He G Y and Chen H Q 2015 J Appl Electrochem 45 343 [8] Kim K S, Jang J, Choe W S and Yoo P J 2015 Biosensors and Bioelectronics 71 214 [9] Wring S A and Hart J P 1992 Analyst 117(8) 1281 [10] Li H S, Li Y J and Wang S Q 2015 Crystengcomm 17(11) 2368 [11] Easow J S and Selvaraju T 2013 Electrochimica Acta 112(1) 648 [12] Moozarm Nia P, Lorestani F, Meng W P and Alias Y 2015 Applied Surface science 322 648 [13] Zhang J, Li J, Yang F, Zhang B L and Yang X R 2009 Sensors and Actuators 143(1) 373 [14] Niu X H, Chen C, Zhao H L, Chai Y and Lan M B 2012 Biosensors & Bioelectronics 36 262 [15] Saha K, Agasti S S, Kim C, Li X L and Rotello V M 2012 Chem.
Chem. 86 3013 [20] Zhou X, Dai X X, Li J G, Long Y M, Li W F and Tu Y.F. 2015 Materials science and Engineering C 49 579 [21] Wagdy H A, Dinc M and Mizaikoff B 2019 Anal.Methods 31 4034 [22] Cui Z Z, Yin H Y and Nie Q L 2015 Journal of Alloys & Compounds 632 402 [23] Tian J Q, Luo Y L, Li H L, Lu W B, Chang G H, Qin X Y and Sun X.P 2011 Catal.
References [1] Kalmykova Y, Moona N, Stroemvall A M and Bjorklund K 2014 Water Research 56(1) 246 [2] Chang H S, Choo K H, Lee B and Choi S J 2009 Journal of Hazardous Materials 172(1) 1 [3] Wu S.Y, Xu Q, Chen T S, Wang M, Yin X Y, Zhang N.P, Shen Y Y, Wen Z Y and Gu Z.Z 2010 Chin J Anal Chem 38(4) 503 [4] Olmo M D, Gonzalez-Casado A, Navas N A and Vilchez J L 1997 Analytica Chimica Acta 34 (6) 87 [5] Maragou N C, Lampi E N, Thomaidis N S and Koupparis M A 2006 J.
A 1129 165 [6] Wang S H, Wei X T, Du L Y and Zhuang H S 2005 Luminescence 20 46 [7] Shen R Y, Zhang W M, Yuan Y, He G Y and Chen H Q 2015 J Appl Electrochem 45 343 [8] Kim K S, Jang J, Choe W S and Yoo P J 2015 Biosensors and Bioelectronics 71 214 [9] Wring S A and Hart J P 1992 Analyst 117(8) 1281 [10] Li H S, Li Y J and Wang S Q 2015 Crystengcomm 17(11) 2368 [11] Easow J S and Selvaraju T 2013 Electrochimica Acta 112(1) 648 [12] Moozarm Nia P, Lorestani F, Meng W P and Alias Y 2015 Applied Surface science 322 648 [13] Zhang J, Li J, Yang F, Zhang B L and Yang X R 2009 Sensors and Actuators 143(1) 373 [14] Niu X H, Chen C, Zhao H L, Chai Y and Lan M B 2012 Biosensors & Bioelectronics 36 262 [15] Saha K, Agasti S S, Kim C, Li X L and Rotello V M 2012 Chem.
Chem. 86 3013 [20] Zhou X, Dai X X, Li J G, Long Y M, Li W F and Tu Y.F. 2015 Materials science and Engineering C 49 579 [21] Wagdy H A, Dinc M and Mizaikoff B 2019 Anal.Methods 31 4034 [22] Cui Z Z, Yin H Y and Nie Q L 2015 Journal of Alloys & Compounds 632 402 [23] Tian J Q, Luo Y L, Li H L, Lu W B, Chang G H, Qin X Y and Sun X.P 2011 Catal.
Online since: May 2011
Authors: Zhe Zhang, Li Hong Zhang, Da Hu Luo
Here, the optimization corrugations include such requirements:
1) Before the yielding, web will not buckle. 2) Web is less demanding steel material, which can be measured by the parameter of s/q. 3) Except the high strength, the relatively high plastic properties are demanded.
In this table, τw=web thickness of actual measurement, τt=shear strength from tests, τy=shear yield strength of web’s material, τE=lesser shear strength from equation 1~3, τEC3= lesser shear strength from Eurocode 3, and τFEM=shear strength from finite element method.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (51008284).
Driver: Journal of Structural Engineering, Vol. 133(2007), p.347
Edlund: Journal of Thin-Walled Structures, Vol.26(1996), p.19
In this table, τw=web thickness of actual measurement, τt=shear strength from tests, τy=shear yield strength of web’s material, τE=lesser shear strength from equation 1~3, τEC3= lesser shear strength from Eurocode 3, and τFEM=shear strength from finite element method.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (51008284).
Driver: Journal of Structural Engineering, Vol. 133(2007), p.347
Edlund: Journal of Thin-Walled Structures, Vol.26(1996), p.19
Online since: October 2010
Authors: Dong Qiang Gao, Zhen Ya Tian, Fei Zhang
Control of PLC for Paving stock Mechanism of New-type Machine Tool about Rapid Prototyping Manufacturing for Ceramic Parts
Dong-qiang Gao , Zhen-ya Tian, Fei Zhang
(Institute of Mechanical & Electrical, Shaanxi University of Science & Technology,
Xi’an 710021, China)
gaodq@sust.edu.cn
zhangfei0923@yahoo.cn
Key words: rapid prototyping manufacturing; ceramic parts; paving stock mechanism; PLC
Abstract: With the development of the rapid prototyping manufacturing for ceramic parts, it is possible to shorten the manufacturing period of ceramic parts and improve the enterprise’s productivity efficiency.
However, there are still some shortcomings, such as expensive equipment, large investment, and serious waste of materials and so on.
It possesses many advantages, like low cost, small investment scale, extensive raw material and good performance.
Automatic control refit of boring machine based on PLC [J].Journal of Engineering Design, 2005, 12(3): 182-184
Journal of Engineering Design, 2006, 13(6): 387-391
However, there are still some shortcomings, such as expensive equipment, large investment, and serious waste of materials and so on.
It possesses many advantages, like low cost, small investment scale, extensive raw material and good performance.
Automatic control refit of boring machine based on PLC [J].Journal of Engineering Design, 2005, 12(3): 182-184
Journal of Engineering Design, 2006, 13(6): 387-391
Online since: September 2013
Authors: Hai Feng Luo, Chao Yi Zhang
Methods and material
The apple harvest robot always needs a vision system in undetermined orchard environments to obtain image information of target apple.
Foglia, Giulio Reina, Agricultural robot for radicchio harvesting, Journal of field robotics, 23(6/7), pp: 363-377, (2006)
[3] Jinliang Guo, Dean Zhao, Wei Ji, etc., Design and control of the pen apple-picking-robot manipulator, 2010 3rd IEEE International conference on computer science and information technology, 2:5-8, (2010)
[6] Wei Li, Ji Li, Junxiong Zhang, etc., Optimization design and simulations of the apple picking robot arm, Journal of Beijing University of Technology, 35(6), pp: 721-726, (2009)
[9] Yu Chai, Yanchun Li , The design and applied research of robot performance testing platform, Applied mechanics and materials, 20(23), pp: 135-140, (2010).
Foglia, Giulio Reina, Agricultural robot for radicchio harvesting, Journal of field robotics, 23(6/7), pp: 363-377, (2006)
[3] Jinliang Guo, Dean Zhao, Wei Ji, etc., Design and control of the pen apple-picking-robot manipulator, 2010 3rd IEEE International conference on computer science and information technology, 2:5-8, (2010)
[6] Wei Li, Ji Li, Junxiong Zhang, etc., Optimization design and simulations of the apple picking robot arm, Journal of Beijing University of Technology, 35(6), pp: 721-726, (2009)
[9] Yu Chai, Yanchun Li , The design and applied research of robot performance testing platform, Applied mechanics and materials, 20(23), pp: 135-140, (2010).
Simulation and Evaluation of Wind-Induced Displacements of the Giant Airship in its Outbound Process
Online since: December 2012
Authors: Yuan Ying Qiu, Xin Wen Zhao, Gai Juan Wang
Simulation and Evaluation of Wind-induced Displacements of the Giant Airship in its Outbound Process
Gaijuan Wang1,a, Yuanying Qiu1,b, Xinwen Zhao2
1Key Lab of Electronic Equipment Structure Design of Ministry of Education, Xidian University, Xi’an, 710071, China
2National Defense Science and Technology Key Lab of Airfoil Cascade Aerodynamics,the Northwestern Polytechnical University, Xi’an, 710072, China
1,ajuangaiwang@163.com, 1,byyqiu@mail.xidian.edu.cn, 2Zhaoxw060253@mail.nwpu.edu.cn
Keywords: Airship; Fluid dynamics; Wind load; Finite element; Simulation of displacement
Abstract.
Some researches on airships have been reported at home and abroad which mainly centered on manufacturing materials of airship envelope [1], modeling and motion simulation [2]-[5], stability and controllability [6] etc.
Assumed that the cable material conform to Hooke's law, according to which prestress is translated into initial strain and applied to the cable in the definition of real constant.
MOUTINBO: AIAA Journal of Guidance, Control and Dynamics, Vol. 31(2008), p.443 [4] Y.
MEYER: Journal of Guidance, Control, and Dynamics, Vol. 30(2007), p.1691 [5] A.
Some researches on airships have been reported at home and abroad which mainly centered on manufacturing materials of airship envelope [1], modeling and motion simulation [2]-[5], stability and controllability [6] etc.
Assumed that the cable material conform to Hooke's law, according to which prestress is translated into initial strain and applied to the cable in the definition of real constant.
MOUTINBO: AIAA Journal of Guidance, Control and Dynamics, Vol. 31(2008), p.443 [4] Y.
MEYER: Journal of Guidance, Control, and Dynamics, Vol. 30(2007), p.1691 [5] A.
Online since: March 2008
Authors: Zhong Li, Sen Ge, Li Chen, Hui Liang Ding, Guo Zhi Lv
Table.1 Material Properties of Skin and Strap
E(GPa)
σ0.2
(MPa)
σb
(MPa)
skin 65 307 429
strap 71 338 463
Fig3 Comparison of experimental and analytical Residual strength
Summary
(1) Once a large amount of widespread fatigue damage happens, it could have a significant influence
on the residual strength of a structure.
References [1] J.Daniel, P.E.Groner:US Air Force Aging Aircraft corrosion, 38th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit, Forum, Kissimmee, FL, Apr. 7-10, 1997
Journal of Mechanical Strength, Vol. 26(2004), p. 254 [4] X.Z.Nie : A Experimental Verification Approach of Stress- Intensity Factor for Multiple Site Cracks of Stiffened Panel, Journal of Mechanical Strength, Vol.26(2004),p. 107
[7] X.R.Wu: Stress-Intensity Factor Handbook(Science Press, Beijing 1993)
References [1] J.Daniel, P.E.Groner:US Air Force Aging Aircraft corrosion, 38th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit, Forum, Kissimmee, FL, Apr. 7-10, 1997
Journal of Mechanical Strength, Vol. 26(2004), p. 254 [4] X.Z.Nie : A Experimental Verification Approach of Stress- Intensity Factor for Multiple Site Cracks of Stiffened Panel, Journal of Mechanical Strength, Vol.26(2004),p. 107
[7] X.R.Wu: Stress-Intensity Factor Handbook(Science Press, Beijing 1993)
Online since: August 2011
Authors: Zheng Du Zhu, Yao Lu, Hui Min Dong
To realize the dynamic simulation, the model is discretized, and then the dynamic equation can be used as follows:
(2)
where: and are the acceleration vector and velocity vector of nodes in the system; M, C, K and Q(t) are the mass matrix, damping matrix, stiffness matrix and joint load vector, which are constituted by unit matrix and vector respectively,
(3)
where: ρ is density of material, μ is damping coefficient, B is element strain matrix, D is elastic matrix, N is unit shape function matrix, f is unit volume force, T is border forces.
* The financial support of the National Natural Science Foundation of P.R.
Zhang: Experiment based finite element analysis on FS of harmonic drive, Journal of Machinery Transmission, Chinese, 10 0 4- 2539(2001) 02- 0016- 04, 2001
Zhang, 2006, Finite element analysis of FS cup in harmonic drive, Chinese Journal of Mechanical Engineering, 2006, Vol.42: pp.52-55 [8] Oguz, K. and Fehmi, E., 2007, “Shape optimization of tooth profile of a FS for a harmonic drive by finite element modeling,” Materials and Design, 28, pp.441–447.
* The financial support of the National Natural Science Foundation of P.R.
Zhang: Experiment based finite element analysis on FS of harmonic drive, Journal of Machinery Transmission, Chinese, 10 0 4- 2539(2001) 02- 0016- 04, 2001
Zhang, 2006, Finite element analysis of FS cup in harmonic drive, Chinese Journal of Mechanical Engineering, 2006, Vol.42: pp.52-55 [8] Oguz, K. and Fehmi, E., 2007, “Shape optimization of tooth profile of a FS for a harmonic drive by finite element modeling,” Materials and Design, 28, pp.441–447.
Online since: October 2008
Authors: X.H. Zhang, Ming Chen, Qing Long An
The work material is prestretched aluminum alloy 2Al2T351, whose initial
residual stress is -53.6Mpa along prestretched direction.
Acknowledgement The research is supported by the National Natural Science Foundation of China (No. 50675134).
Lo: Journal of Materials Processing Technology, Vol. 142 (2003), pp. 665-675
Kumar: The International Journal of Advanced Manufacturing Technology, Vol. 35 (2008) No.7-8, pp. 778-788
Acknowledgement The research is supported by the National Natural Science Foundation of China (No. 50675134).
Lo: Journal of Materials Processing Technology, Vol. 142 (2003), pp. 665-675
Kumar: The International Journal of Advanced Manufacturing Technology, Vol. 35 (2008) No.7-8, pp. 778-788