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Online since: October 2015
Authors: Marek Szajt, Ismena Dzida
Initially a great deal of raw materials and workforce was used.
This type of cooperation delivers new production materials and innovative solutions to almost every sector of the economy.
With regard to materials use, minimalism is applied, i. e. as small as possible consumption of materials with the simultaneous reaching high effectiveness of using and functionality.
A characteristic feature is also a high degree of processing of materials used during production process.
More and more students choose studies in the technical - engineering field.
This type of cooperation delivers new production materials and innovative solutions to almost every sector of the economy.
With regard to materials use, minimalism is applied, i. e. as small as possible consumption of materials with the simultaneous reaching high effectiveness of using and functionality.
A characteristic feature is also a high degree of processing of materials used during production process.
More and more students choose studies in the technical - engineering field.
Online since: February 2018
Authors: Farzin G. Golzar, Geoffrey W. Rodgers, J. Geoffrey Chase
Mander, "Damage avoidance design for buildings," KSCE Journal of Civil Engineering, vol. 18, pp. 541-548, Mar 2014
McNamara, "Energy dissipation systems for seismic applications: Current practice and recent developments," Journal of Structural Engineering, vol. 134, pp. 3-21, 2008
Erasmus, "Ring springs on holding-down bolts for seismic energy dissipation," Transactions of the Institution of Professional Engineers New Zealand: Civil Engineering Section, vol. 15, pp. 41-47, 1988
Clifton, "Low damage braces using Asymmetrical Friction Connections (AFC)," in New Zealand Society for Earthquake Engineering 2014 Annual Conference, 2014
Pampanin, "Reshaping structural hysteresis response with semi-active viscous damping," Bulletin of Earthquake Engineering, vol. 15, pp. 1789-1806, 2016.
McNamara, "Energy dissipation systems for seismic applications: Current practice and recent developments," Journal of Structural Engineering, vol. 134, pp. 3-21, 2008
Erasmus, "Ring springs on holding-down bolts for seismic energy dissipation," Transactions of the Institution of Professional Engineers New Zealand: Civil Engineering Section, vol. 15, pp. 41-47, 1988
Clifton, "Low damage braces using Asymmetrical Friction Connections (AFC)," in New Zealand Society for Earthquake Engineering 2014 Annual Conference, 2014
Pampanin, "Reshaping structural hysteresis response with semi-active viscous damping," Bulletin of Earthquake Engineering, vol. 15, pp. 1789-1806, 2016.
Online since: July 2020
Authors: Ji Wei Zhang, Fang Zheng Li, Shu Jie Liu
Lots of materials have been proposed to reduce the potential of concrete crack [6-7].
J. of Civil and Environmental Engineering, 2015, 37(1): 1365-1372
Construction and Building Materials, 2019, 214: 219-231
Materials, 2017, 10:419
Materials, 2018,11(10):1822
J. of Civil and Environmental Engineering, 2015, 37(1): 1365-1372
Construction and Building Materials, 2019, 214: 219-231
Materials, 2017, 10:419
Materials, 2018,11(10):1822
Online since: July 2012
Authors: Li Zhang, Li Jie Sun, Yong Bo Yang, Da Bo Zhang, Li Chun Wu
The extraction of feature parameters is a necessary part for fault diagnosis and the key to diagnosis success depends on whether characteristic parameters are selected properly.
“The new methods of modern analog fault diagnosis”, Information and Electronic Engineering, 2006, 4(6), pp.476-480
“Intelligent diagnosis method for rolling element bearing faults using possibility theory and neural network”, Computers & Industrial Engineering, 2011,pp.1-8
“An application of neural network for selecting feature parameters in machinery diagnosis”, Journal of Materials Processing Technology, 2004, pp.203-207
“The new methods of modern analog fault diagnosis”, Information and Electronic Engineering, 2006, 4(6), pp.476-480
“Intelligent diagnosis method for rolling element bearing faults using possibility theory and neural network”, Computers & Industrial Engineering, 2011,pp.1-8
“An application of neural network for selecting feature parameters in machinery diagnosis”, Journal of Materials Processing Technology, 2004, pp.203-207
Online since: January 2012
Authors: Kao Zhong Zhao, Feng Wang, Xiao Feng Bian
Experimental Study on Concrete-Filled Glass Fiber Reinforced Gypsum Wall Panel Compression Members
Kaozhong Zhao1,2, a, Feng Wang1 and Xiaofeng Bian1
1College of Civil Engineering, Shandong Jianzhu University, Jinan250101, China
2Shandong Provincial Key Laboratory of Appraisal and Retrofitting in Building Structures, Jinan250101, China
aZKZ@sdjzu.edu.cn
Keywords: Concrete-filled glass fiber reinforced gypsum wall panel; Compression member; Bearing capacity; Failure mechanism; Experimental study
Abstract: The concrete-filled glass fiber reinforced gypsum wall panel is a kind of panel that the inside cavums of the glass fiber hollow gypsum panel are filled with concrete, which can be used as the bearing wall of a building.
The standard wall panel is 3m×12m, which can be cut according to the design in the engineering application as shown in the Figure 1.
The wall panel is typical green building material product with many features, such as deadweight light, good heat preservation, economy energy resources.
For the further popularization and application of the new wall material, the inside cavums can be filled with concrete to form concrete filled glass fiber reinforced gypsum wall panel.
The standard wall panel is 3m×12m, which can be cut according to the design in the engineering application as shown in the Figure 1.
The wall panel is typical green building material product with many features, such as deadweight light, good heat preservation, economy energy resources.
For the further popularization and application of the new wall material, the inside cavums can be filled with concrete to form concrete filled glass fiber reinforced gypsum wall panel.
Online since: June 2019
Authors: Xin Yu Ye, Lin Sheng Wang, Qing Hua Zeng, Di Wu
Co-Precipitation Synthesis and Photoluminescence Properties of K2SiF6:Mn4+ Red Phosphor for White Light Emitting Diodes
Di Wu1,3,a, Xin-Yu Ye 1,2, Lin-Sheng Wang 1,3, Qing-Hua Zeng 1
1National Engineering Research Center for Ionic Rare Earth, Ganzhou 341000, China
2School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
3Ganzhou Nonferrous Metallurgy Research Institute, Ganzhou 341000, China
a511965684@qq.com
Keywords: Co-precipitation; K2SiF6:Mn4+; white LEDs; fluoride phosphor
Abstract: A novel red-emitting K2SiF6:Mn4+ phosphors with different Mn4+ doping mole fraction were synthesized by co-precipitation method.
Therefore, the development of a new type of high efficient red phosphor which is suitable for the blue excitation is the key to obtain high brightness, high luminous efficiency and high color rendering for white LEDs.
This may be due to concentration quenching, namely, a high doping concentration can reduce the Mn4+-Mn4+ distance to form a Mn4+ ion-pair in the host material and generate non-radiative transitions[24-25], resulting in reduced luminous intensity as excited electrons migrate from one Mn4+ to another Mn4+ ion-pair.
The monoexponential behaviour indicates that Mn4+ has effectively entered the host material and replaced only one type of lattice site of Si4+.
Therefore, the development of a new type of high efficient red phosphor which is suitable for the blue excitation is the key to obtain high brightness, high luminous efficiency and high color rendering for white LEDs.
This may be due to concentration quenching, namely, a high doping concentration can reduce the Mn4+-Mn4+ distance to form a Mn4+ ion-pair in the host material and generate non-radiative transitions[24-25], resulting in reduced luminous intensity as excited electrons migrate from one Mn4+ to another Mn4+ ion-pair.
The monoexponential behaviour indicates that Mn4+ has effectively entered the host material and replaced only one type of lattice site of Si4+.
Online since: July 2015
Authors: Barbu Cristian Braun
The paper describes the key-stage of research, meaning the evaluation of the performances of a non-contact displacement transducer, LASER principle, which could be used as measuring/scanning system for the proposed low-cost CMM.
Druga: Low – cost CNC dimensional inspection gauges improving, 5th International Conference “Advanced Composite Materials Engineering”, COMAT, 16-17 October 2014, Brasov, Romania, ISBN: 978-606-19-0411-2, pp. 54-59; [2] M.
Bleys: Optical measurement techniques for mobile and large scale dimensonal metrology, Optics and LASERs in Engineering, vol. 47, nr. 3,4, pag. 293, 294, 2009; [7] M.
Druga: Low – cost CNC dimensional inspection gauges improving, 5th International Conference “Advanced Composite Materials Engineering”, COMAT, 16-17 October 2014, Brasov, Romania, ISBN: 978-606-19-0411-2, pp. 54-59; [2] M.
Bleys: Optical measurement techniques for mobile and large scale dimensonal metrology, Optics and LASERs in Engineering, vol. 47, nr. 3,4, pag. 293, 294, 2009; [7] M.
Online since: May 2012
Authors: Nai Yun Gao, Ya Li Song, Bing Zhi Dong, Chun Chang, Yu Fang Yang
Pilot Study of a Hybrid Process combining Oxidation- coagulation -microfiltration for Drinking Water Production from Surface Water
Yali Song1, 2,a, Bingzhi Dong2,b , Naiyun Gao2, c, Yufang Yang3,d,
Chun Chang3,e,
1 School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China;
2 College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
3 Toray Fibers & Ttextiles Research Laboratories (China) Co.
Table 2 Membrane characteristics Parameters MF membrane Material PVDF Type Hollow fiber Pore size (µm) 0.1 Membrane surface area (m2) 7.0 Type of filtration Dead-end Type of pressure Outside-inside MF membrane process included two-step: filtration and backflushing.
Furthermore, MF membrane can remove little organic matter, so pre-oxidation aimed at increasing removal of organic material in the experiment.
Acknowledgements This research is financially supported by the National Key Technologies R & D Program “Drinking Water Safety Ensuring Technologies and Instruments Development for Small Cities and Towns”(2006BAJ08B02)and the S&T plan projects of Zhejiang Provincial Education Department (Y201119321) .
Table 2 Membrane characteristics Parameters MF membrane Material PVDF Type Hollow fiber Pore size (µm) 0.1 Membrane surface area (m2) 7.0 Type of filtration Dead-end Type of pressure Outside-inside MF membrane process included two-step: filtration and backflushing.
Furthermore, MF membrane can remove little organic matter, so pre-oxidation aimed at increasing removal of organic material in the experiment.
Acknowledgements This research is financially supported by the National Key Technologies R & D Program “Drinking Water Safety Ensuring Technologies and Instruments Development for Small Cities and Towns”(2006BAJ08B02)and the S&T plan projects of Zhejiang Provincial Education Department (Y201119321) .
Online since: November 2011
Authors: Jia Du, Hong Li
Controlling of Brushless DC Motor Based on Particle Swarm Optimization Fuzzy Logical Controller
Li Hong and Du Jia
Department of Electrical Engineering, Beijing Information Science & Technology University Beijing, China
lihong8290@163.com, libjxsqyx@sina.com
Keywords: Particle swarm optimization; fuzzy logical control brushless direct current motor.
Introduction Brushless Direct Current Motor (BLDCM) is a kind of electromechanical integration motor maturing with the development of power electronic devices and new permanent magnetic materials.
Acknowledgment This work was supported by the Natural Science Foundation of China (10772020) and Open research topics in Key Laboratory of Beijing (KF20091123201) References [1] C.
[9] QI Chun-qing, SONG Zheng-qiang, “Controlling of Permanent-magnet Synchronous Machine Based on Particle Swarm Optimization Fuzzy Logical Controller,” Proceedings of the Chinese Society for Electrical Engineering, 2006, 26(17): 158-162 [10] G.B.Xiang, “ITAE Optimal Control, ” Beijing: The Press of Machinery Industry, 1986.
Introduction Brushless Direct Current Motor (BLDCM) is a kind of electromechanical integration motor maturing with the development of power electronic devices and new permanent magnetic materials.
Acknowledgment This work was supported by the Natural Science Foundation of China (10772020) and Open research topics in Key Laboratory of Beijing (KF20091123201) References [1] C.
[9] QI Chun-qing, SONG Zheng-qiang, “Controlling of Permanent-magnet Synchronous Machine Based on Particle Swarm Optimization Fuzzy Logical Controller,” Proceedings of the Chinese Society for Electrical Engineering, 2006, 26(17): 158-162 [10] G.B.Xiang, “ITAE Optimal Control, ” Beijing: The Press of Machinery Industry, 1986.
Online since: December 2013
Authors: Zhen Zhou, Wen Yan Wu, Ke Jia Liu, Xiao Hua Li, You Cai Zhao, Luo Chun Wang
Study on the photo-electro-catalytic oxidation of methane
Wenyan Wu1,a, Luochun Wang1,b , Zhen Zhou1,c , Kejia Liu1,d , Xiaohua Li1,e and Youcai Zhao2,f
1 College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai
2 College of Environmental Science and Engineering, Tongji University, Shanghai
awwy_2007@yeah.net, bwangluochun@shiep.edu.cn, czhouzhen@shiep.edu.cn,
d liukejia6711271@163.com, elixiaohua0808@126.com, fzhaoyoucai@tongji.edu.cn
Keywords: photo-electro-catalytic; methane; kinetics
Abstract.
Because the nonpolar methane molecule was only weakly physisorbed on the surface of polar TiO2, K<<1, transformation of Eq. (2) (3) The methane oxidation rate is proportional to the methane concentration, and the oxidation rate of methane fit a first-order reaction (4) Since the methane initial concentrations and photocatalytic materials in the experiments were the same, the degradation rate of methane can also be expressed by apparent rate constant k (k =κK) (5) The methane concentration dependence on reaction time followed an exponential law
Acknowledgements This work was financially supported by Key Innovation Program of Shanghai Municipal Education Commission (12Z171) of China.
Because the nonpolar methane molecule was only weakly physisorbed on the surface of polar TiO2, K<<1, transformation of Eq. (2) (3) The methane oxidation rate is proportional to the methane concentration, and the oxidation rate of methane fit a first-order reaction (4) Since the methane initial concentrations and photocatalytic materials in the experiments were the same, the degradation rate of methane can also be expressed by apparent rate constant k (k =κK) (5) The methane concentration dependence on reaction time followed an exponential law
Acknowledgements This work was financially supported by Key Innovation Program of Shanghai Municipal Education Commission (12Z171) of China.