Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: February 2007
Authors: S.C. Lee, Jia Guo Yu, Huogen Yu, Bei Cheng, C.H. Ao
Lee
2
1
State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan
University of Technology, Wuhan, 430070, P.
R. of China 2 Department of Civil and Structural Engineering, The Hong Kong polytechnic University, Hung Hom, Kowloon, China Keywords: LPD method, Substrates, Composition, Microstructure Abstract.
R. of China 2 Department of Civil and Structural Engineering, The Hong Kong polytechnic University, Hung Hom, Kowloon, China Keywords: LPD method, Substrates, Composition, Microstructure Abstract.
Online since: May 2011
Authors: Rui Fan, Ying Qian Song, Wei Ding Long
Experimental research on performance of Water-Cooled VRF system in winter in Shanghai
Song Yingqian1, a, Fan Rui2,b and Long Weiding3,c
1 Tongji university, College of Mechanical Engineering, Shanghai 201804, China
2 Tongji university, Sino-German College of Applied Sciences, Shanghai 200092, China
3 Tongji university, Sino-German College of Applied Sciences, Shanghai 200092, China
asongyingqian@163.com, b fan_rui@163.com, cweidinglong163@163.com
Keywords: Water-Cooled VRF system; Performance analysis; experimental research.
The pipe material is PE and pipe diameter is DN25.
Therefore, detailed analysis and evaluation of operating parameters and energy parameters of the entire air conditioning system is the key step to analyze the equipment performance.
The pipe material is PE and pipe diameter is DN25.
Therefore, detailed analysis and evaluation of operating parameters and energy parameters of the entire air conditioning system is the key step to analyze the equipment performance.
Online since: December 2014
Authors: Yu Kun Zheng, Lian Ge Ouyang, Xiao Hong Ge
Design and Simulation about Linkage of Caterpillar Beach Cleaner’s graps
Yukun Zheng a, Xiaohong Ge * and Liange Ouyang
School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China
azykfiller@163.com
Keywords: Linkages, Flex Body File, Rigid-Flexible Coupling.
After establishing finite element model of the flexible connecting rod mechanism, the Q345’ s material properties were given to connecting rod mechanism.
Selected the external connection point corresponding ADAMS model key point, replaced the original rigid model of connecting rod mechanism with flexible body model conversion of it, generated rigid-flexible coupling model, as shown in figure 4, after the flexible body replaced a rigid body, constraint of flexible connecting rod mechanism and rigid parts was supposed to be reset Fig. 3 The external node and the rigid region of the connecting rod mechanism Fig.4 The rigid- flexible coupling model Since the power source of the grab machine came from the hydraulic cylinder, so we set moving deputy-driver in the three hydraulic cylinders.
After establishing finite element model of the flexible connecting rod mechanism, the Q345’ s material properties were given to connecting rod mechanism.
Selected the external connection point corresponding ADAMS model key point, replaced the original rigid model of connecting rod mechanism with flexible body model conversion of it, generated rigid-flexible coupling model, as shown in figure 4, after the flexible body replaced a rigid body, constraint of flexible connecting rod mechanism and rigid parts was supposed to be reset Fig. 3 The external node and the rigid region of the connecting rod mechanism Fig.4 The rigid- flexible coupling model Since the power source of the grab machine came from the hydraulic cylinder, so we set moving deputy-driver in the three hydraulic cylinders.
Online since: December 2022
Authors: Jing Zeng, Han Bing He, Zhi Hao Zhang, Yu Si Wang
Computational Methods
This calculation used Material Studio software to set a given number of various ions in a periodic box.
Acknowledgements The financial support of National Key R&D Program of China (Grant No. 2021YFB3701400), Postgraduate Innovative Project of Central South University and Postgraduate Innovative Project of Hunan province are greatly appreciated.
Journal of Chemical & Engineering Data. 55 (2010), 5214-5215. https://doi.org/10.1021/je100741b [2] Fellner P, Midtlyng S, Sterten A, et al.
Fusion engineering and design. 81 (2006), 713-717. https://doi.org/10.1016/j.fusengdes.2005.09.034 [12] Nam H O, Bengtson A, Vörtler K, et al.
Journal of Nuclear Materials. 449 (2014), 148-157. https://doi.org/10.1016/j.jnucmat.2014.03.014 [13] Cristiglio V, Hennet L, Cuello G J, et al.
Acknowledgements The financial support of National Key R&D Program of China (Grant No. 2021YFB3701400), Postgraduate Innovative Project of Central South University and Postgraduate Innovative Project of Hunan province are greatly appreciated.
Journal of Chemical & Engineering Data. 55 (2010), 5214-5215. https://doi.org/10.1021/je100741b [2] Fellner P, Midtlyng S, Sterten A, et al.
Fusion engineering and design. 81 (2006), 713-717. https://doi.org/10.1016/j.fusengdes.2005.09.034 [12] Nam H O, Bengtson A, Vörtler K, et al.
Journal of Nuclear Materials. 449 (2014), 148-157. https://doi.org/10.1016/j.jnucmat.2014.03.014 [13] Cristiglio V, Hennet L, Cuello G J, et al.
Online since: November 2012
Authors: Yan Pei Cheng, Fa Wang Zhang, Jian Kang Zhang
Introduction
The farmland is required for normal growth of crops and for material suppliers and regulators.
The key to the multi-factors evaluation relies on selection and impact of determining the weights as calculated: (1) Where standing for the total score of land consolidation site; indicating the weight of the indicators to determine the weights of evaluation indexes by way of pair-wise comparison method; indicating the standard value of the indicators. 1.2 Trial plot The trial plot is located at Wangyangxing Village, Zaoqiang county of Hengshui City.
According to the experimental material or similar engineering experience, drop head flow at different soil conditions and drop head spacing can consult to table 3 scopes.
The agricultural productivity is increasing while manpower and material resources save from the traditional farming methods.
Journal of Agricultural Engineering, 2003,19(1)67-71.
The key to the multi-factors evaluation relies on selection and impact of determining the weights as calculated: (1) Where standing for the total score of land consolidation site; indicating the weight of the indicators to determine the weights of evaluation indexes by way of pair-wise comparison method; indicating the standard value of the indicators. 1.2 Trial plot The trial plot is located at Wangyangxing Village, Zaoqiang county of Hengshui City.
According to the experimental material or similar engineering experience, drop head flow at different soil conditions and drop head spacing can consult to table 3 scopes.
The agricultural productivity is increasing while manpower and material resources save from the traditional farming methods.
Journal of Agricultural Engineering, 2003,19(1)67-71.
Online since: November 2017
Authors: Sangeeta Santra
Phase Stability, Structure and Thermodynamics of Modified
Ni- and Fe-Aluminides
Sangeeta Santra
Department of Materials, CfAS, University of Oxford, UK
sangeeta.santra@gmail.com, sangeeta.santra@materials.ox.ac.uk
Keywords: Superalloy, aluminides, bond coats, phase equilibria, defects, thermodynamics.
The high thermal expansion coefficient helps accommodate large strains induced due to mismatch between the coating and the underlying material.
These key features can be conducive to alloy design
The Al-Fe forms a key subsystem for the bond coat purpose.
Therefore, the properties of a modified bond coat can be engineered by regulating either composition or temperature or both.
The high thermal expansion coefficient helps accommodate large strains induced due to mismatch between the coating and the underlying material.
These key features can be conducive to alloy design
The Al-Fe forms a key subsystem for the bond coat purpose.
Therefore, the properties of a modified bond coat can be engineered by regulating either composition or temperature or both.
Online since: October 2023
Authors: Francisco Javier Álvarez García, Óscar López Pérez, Alfonso González González, David Rodríguez Salgado
An Approach to Zero-Failures Maintenance Using Industry 4.0 in Network Connected Multistage Industrial Machines
Álvarez García, Francisco Javier1,a*, López Pérez, Óscar1,b,
González González, Alfonso1,c and Rodríguez Salgado, David2,d
1University of Extremadura, University Centre of Mérida, C/santa Teresa de Jornet 38, 06800, Mérida, Spain
2University of Extremadura, Industrial Engineering Center.
Preventive maintenance study global operation condition [1] and can perform the reliability and availability of the MSM, by using key performance indicators related to individual maintenance times of each component.
Materials and Methods The develop of the current research follows in order, the next steps
Sandanayake, Industry 4.0 Enabled Predictive Maintenance of Facilities: A Study on Applicability, Benefits and Challenges, Proceedings of the 10th World Construction Symposium, 24-26 June 2022, Sri Lanka, 585-597. https://doi.org/10.31705/WCS.2022.47 [5] Shaheen, B.W., Nemeth, I., Integration of Maintenance Management System Functions with Industry 4.0 Technologies, and Features—A Review, Processes, 10, 2173 (2022). https://doi.org/10.3390/pr10112173 [6] Morgan, J., Halton, M., Qiao, Y., Breslin, J.G., Industry 4.0 smart reconfigurable manufacturing machines, Journal of Manufacturing Systems, 59 (2021). https://doi.org/10.1016/j.jmsy.2021.03.001 [7] Mohan T.R., Roselyn, J.P., Uthra, R.A., Devaraj, D., Umachandran, K., Intelligent machine learning based total productive maintenance approach for achieving zero downtime in industrial machinery, Computers & Industrial Engineering, 157 (2021). https://doi.org/10.1016/j.cie.2021.107267 [8] Baum, B., Laroque, Ch., Oeser, B., Skoogh, A., Subramaniyan
Software Engineering — Software Product Quality Requirements and Evaluation (SQuaRE) — Data Quality Model.
Preventive maintenance study global operation condition [1] and can perform the reliability and availability of the MSM, by using key performance indicators related to individual maintenance times of each component.
Materials and Methods The develop of the current research follows in order, the next steps
Sandanayake, Industry 4.0 Enabled Predictive Maintenance of Facilities: A Study on Applicability, Benefits and Challenges, Proceedings of the 10th World Construction Symposium, 24-26 June 2022, Sri Lanka, 585-597. https://doi.org/10.31705/WCS.2022.47 [5] Shaheen, B.W., Nemeth, I., Integration of Maintenance Management System Functions with Industry 4.0 Technologies, and Features—A Review, Processes, 10, 2173 (2022). https://doi.org/10.3390/pr10112173 [6] Morgan, J., Halton, M., Qiao, Y., Breslin, J.G., Industry 4.0 smart reconfigurable manufacturing machines, Journal of Manufacturing Systems, 59 (2021). https://doi.org/10.1016/j.jmsy.2021.03.001 [7] Mohan T.R., Roselyn, J.P., Uthra, R.A., Devaraj, D., Umachandran, K., Intelligent machine learning based total productive maintenance approach for achieving zero downtime in industrial machinery, Computers & Industrial Engineering, 157 (2021). https://doi.org/10.1016/j.cie.2021.107267 [8] Baum, B., Laroque, Ch., Oeser, B., Skoogh, A., Subramaniyan
Software Engineering — Software Product Quality Requirements and Evaluation (SQuaRE) — Data Quality Model.
Online since: January 2013
Authors: Hua Wang, Shuang Hui Deng, Juan Qin Li, Wei Hu, Jian Hang Hu
An Experimental Study of Steam Gasification of Biomass over Precalcined Copper Slag Catalysts
Shuanghui Deng1,a, Jianhang Hu1,b,*, Hua Wang1,2,c, Juanqin Li1,d
and Wei Hu1,e
1Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093,China;
2State Key Lab.
During gasification process, the biomass material is heated to a high temperature, which causes a series of physical and chemical reactions that result in a mixture of hydrogen, carbon oxides, small amounts of methane and higher hydrocarbons.
The levels of biomass gasification are associated with characteristics of material, gasification temperature, reactor type, heating rate and gasifying agent [1-3].
L: the Chinese Journal of Process Engineering, Vol. 10(4) (2010), p. 726-731 (In Chinese) [13] C.
Liu: the Chinese Journal of Process Engineering, Vol. 11(5) (2011), p. 806-811 (In Chinese) [14] Y.G.
During gasification process, the biomass material is heated to a high temperature, which causes a series of physical and chemical reactions that result in a mixture of hydrogen, carbon oxides, small amounts of methane and higher hydrocarbons.
The levels of biomass gasification are associated with characteristics of material, gasification temperature, reactor type, heating rate and gasifying agent [1-3].
L: the Chinese Journal of Process Engineering, Vol. 10(4) (2010), p. 726-731 (In Chinese) [13] C.
Liu: the Chinese Journal of Process Engineering, Vol. 11(5) (2011), p. 806-811 (In Chinese) [14] Y.G.
Online since: October 2014
Authors: Raffaella Lo Nigro, Maria Rita Catalano, Gugliemo Guido Condorelli, Graziella Malandrino
Introduction
Multiferroics are materials in which at least two of the three ferroic orders, ferroelectricity, ferro- or anti-ferromagnetism and ferroelasticity coexist.
BiFeO3 is unique among various multiferroics, as its ferroelectric and magnetic transition temperatures are well above the room temperature, thus it represents a key material in the fabrication of magnetoelectric systems [1,2].
Fragala’, Engineering of molecular architectures of beta-diketonate precursors toward new advanced materials, Coord.
BiFeO3 is unique among various multiferroics, as its ferroelectric and magnetic transition temperatures are well above the room temperature, thus it represents a key material in the fabrication of magnetoelectric systems [1,2].
Fragala’, Engineering of molecular architectures of beta-diketonate precursors toward new advanced materials, Coord.
Online since: May 2007
Authors: Nong Gao, Marco J. Starink, Shun Cai Wang
Gao
c
Materials Research Group, School of Engineering Sciences, University of Southampton,
Southampton, SO17 1BJ, United Kingdom
a
wangs@soton.ac.uk, b
m.j.starink@soton.ac.uk, c
n.gao@soton.ac.uk,
Keywords: Al-Cu-Mg alloys, clusters, precipitates, hardening.
For instance, the 2024 alloy with composition of about Al-1.8Cu-1.7Mg-0.3Mn (at-%), and derivatives 2124 and 2524, are primary structural material used in aircraft. 2x24 alloys continue to be specified for many aerospace structural applications, such as in fuselage structures, wing tension members, shear webs and ribs.
(c, d and e adapted from [21]) The strength model In polycrystalline materials several hardening mechanisms operate, and the yield strength should generally be given by [25]: σy = ∆σGB + M·τtot (1) where ∆σGB is the grain boundary strengthening, M is an orientation factor (often termed the Taylor factor), and τtot is the critical resolved shear stress (CRSS) of the grains which is determined by several strengthening mechanisms, most notably intrinsic hardening, precipitate hardening (including co-cluster hardening) and solution hardening.
A key point in the model is the assumption that S phase forms whilst the pre-precipitates dissolve.
For instance, the 2024 alloy with composition of about Al-1.8Cu-1.7Mg-0.3Mn (at-%), and derivatives 2124 and 2524, are primary structural material used in aircraft. 2x24 alloys continue to be specified for many aerospace structural applications, such as in fuselage structures, wing tension members, shear webs and ribs.
(c, d and e adapted from [21]) The strength model In polycrystalline materials several hardening mechanisms operate, and the yield strength should generally be given by [25]: σy = ∆σGB + M·τtot (1) where ∆σGB is the grain boundary strengthening, M is an orientation factor (often termed the Taylor factor), and τtot is the critical resolved shear stress (CRSS) of the grains which is determined by several strengthening mechanisms, most notably intrinsic hardening, precipitate hardening (including co-cluster hardening) and solution hardening.
A key point in the model is the assumption that S phase forms whilst the pre-precipitates dissolve.