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Online since: March 2008
Authors: Sheng Zhu, Fan Jun Meng, De Ma Ba
The functions of the remanufacturing system
comprise calibration of system, part reversing measurement, data processing, defective model
reconstruction, welding remanufacturing prototyping path layout and etc.
The functions of system include the acquirement and treatment of "point cloud" data of the worn metal part, reconstruction of defective model, remanufacturing prototyping path layout, prototyping simulation, and etc.
Its work interface shows as Fig.2. 2) Reversing measurement module This module is mainly used to set measurement parameter and mode, as well as collect and storage data.
Its work interface is shown as Fig.3. 3) Data processing module The main task of this module is smoothing, reduction, noise removing, combination and segmentation of data.
Its work interface shows as Fig.4. 4) Defective model reconstruction module Fig.5 shows that the defective model reconstruction module comprises the triangularization of "point cloud" data and the comparison of defective module and normal part model. 5) Weld prototyping module Fig.6 is the work interface of the remanufacturing prototyping path layout module.
The functions of system include the acquirement and treatment of "point cloud" data of the worn metal part, reconstruction of defective model, remanufacturing prototyping path layout, prototyping simulation, and etc.
Its work interface shows as Fig.2. 2) Reversing measurement module This module is mainly used to set measurement parameter and mode, as well as collect and storage data.
Its work interface is shown as Fig.3. 3) Data processing module The main task of this module is smoothing, reduction, noise removing, combination and segmentation of data.
Its work interface shows as Fig.4. 4) Defective model reconstruction module Fig.5 shows that the defective model reconstruction module comprises the triangularization of "point cloud" data and the comparison of defective module and normal part model. 5) Weld prototyping module Fig.6 is the work interface of the remanufacturing prototyping path layout module.
Online since: October 2010
Authors: Qiu Shu Wang, Qing Xue Huang, Shao Zhen Jin, Xiao Hong Hao, Ying Hu
It is able to complete the real-time data acquisition, data analysis, model calculation and self
-learning function.
IBA data loggers can achieve the high-speed recording of a variety of field data and provide data support for a variety of working conditions of leveler [3-5].
The database includes real-time data module, the original sheet material library module, data management and analysis module and other parts.
The function of data management module is to manage, analyze real-time data, give the results, report printing for all data in the database.
Application of the knowledge base plate model Mainly function of intelligent process model is calculated each roller reduction, force, torque and curvature parameters according to the data of parameter table in the knowledge base.
IBA data loggers can achieve the high-speed recording of a variety of field data and provide data support for a variety of working conditions of leveler [3-5].
The database includes real-time data module, the original sheet material library module, data management and analysis module and other parts.
The function of data management module is to manage, analyze real-time data, give the results, report printing for all data in the database.
Application of the knowledge base plate model Mainly function of intelligent process model is calculated each roller reduction, force, torque and curvature parameters according to the data of parameter table in the knowledge base.
Online since: October 2014
Authors: Foengfurad Mungtavesinsuk, Hung Wen Lin, Kris Wonggasem
By real-time data collection for all equipment in factory, and use simulation tool to analyze whole year energy end-use, some of useful improvement strategies and energy saving percentage could be knew.
IBM imported advanced energy-saving solutions, in one fell swoop to save 40% of electricity costs, reduce maintenance costs, improve product yield.[4] This paper focus on the energy saving verification in two Thailand textile factories, via field observation and useful data collection, propose some methods to improvement energy efficiency.
On the other hand, found out some energy potential in factory via the energy simulation and data analysis.
The whole year electricity bill and simulation data were shown in Fig.3, the measurement data and simulation data are 217,093 kWh 216537 kWh, respectively.
Energy reduction after lighting retrofit Fig.5 shows the lighting energy difference by simulation after improving high efficiency lighting device.
IBM imported advanced energy-saving solutions, in one fell swoop to save 40% of electricity costs, reduce maintenance costs, improve product yield.[4] This paper focus on the energy saving verification in two Thailand textile factories, via field observation and useful data collection, propose some methods to improvement energy efficiency.
On the other hand, found out some energy potential in factory via the energy simulation and data analysis.
The whole year electricity bill and simulation data were shown in Fig.3, the measurement data and simulation data are 217,093 kWh 216537 kWh, respectively.
Energy reduction after lighting retrofit Fig.5 shows the lighting energy difference by simulation after improving high efficiency lighting device.
Online since: October 2014
Authors: Aurelian Vlase, Ovidiu Blăjină, Vlad Darie, Marius Iacob
The experimental data and their subsequent processing represent the original contribution of the authors to the estimation of polytropic exponents and to the assessment in terms of structure of the calculus relation of the cutting tool wear.
Mechanical characteristics (at 200 C) Stainless steel Tensile strength Rm [MPa] Flowing limit R02 [MPa] Elongation A [%] Hardness [HB] X20Cr13 730 280 16 231 Experimental results and obtained data processing The technical literature [9], provided the equation (1), which has been the starting point in the analysis of the cutting tool wear for drilling:
No Diameter D [mm] Feed f [mm/rot] Rotation n [rot/min] Speed v [m/min] Cutting time t [min] Tool wear VB [mm] 1 16 0.12 450 22.61 18.52 3.87 2 20 0.12 280 17.58 29.76 1.70 3 20 0.20 280 17.58 17.86 2.05 4 12 0.12 355 13.38 23.47 1.10 5 16 0.20 450 22.61 11.11 4.62 6 20 0.32 280 17.58 11.16 2.41 7 20 0.12 355 22.29 23.47 3.26 If the data of the first five experiments from the Table 3 are substituted in the equation (2), then a linear inhomogeneous system of five equations with five unknowns (x, y, z, w, lg CVB) is obtained:
(4) The data of the last two experiments, included in the Table 4, allow the verification of the calculus relation (4).
Conclusions The experimental data and their processing represent the contribution of the authors to the estimation of the polytropic exponents from the formula of the cutting tool wear on the tool putting surface at drilling of the stainless steel X20Cr13.
Mechanical characteristics (at 200 C) Stainless steel Tensile strength Rm [MPa] Flowing limit R02 [MPa] Elongation A [%] Hardness [HB] X20Cr13 730 280 16 231 Experimental results and obtained data processing The technical literature [9], provided the equation (1), which has been the starting point in the analysis of the cutting tool wear for drilling:
No Diameter D [mm] Feed f [mm/rot] Rotation n [rot/min] Speed v [m/min] Cutting time t [min] Tool wear VB [mm] 1 16 0.12 450 22.61 18.52 3.87 2 20 0.12 280 17.58 29.76 1.70 3 20 0.20 280 17.58 17.86 2.05 4 12 0.12 355 13.38 23.47 1.10 5 16 0.20 450 22.61 11.11 4.62 6 20 0.32 280 17.58 11.16 2.41 7 20 0.12 355 22.29 23.47 3.26 If the data of the first five experiments from the Table 3 are substituted in the equation (2), then a linear inhomogeneous system of five equations with five unknowns (x, y, z, w, lg CVB) is obtained:
(4) The data of the last two experiments, included in the Table 4, allow the verification of the calculus relation (4).
Conclusions The experimental data and their processing represent the contribution of the authors to the estimation of the polytropic exponents from the formula of the cutting tool wear on the tool putting surface at drilling of the stainless steel X20Cr13.
Online since: March 2021
Authors: Eiichi Wakai, Takashi Wakui, Hiroyuki Kogawa, Takashi Naoe, Katsuhiro Haga, Hiroshi Takada, Hidetaka Kinoshita
The relationship between the gap width, beam power, and the degree of damage will be investigated through accumulating the damage data of actual target in future work.
The reduction in the displacement velocity by the gas microbubble injection compared to the without bubbles was by a factor of approximately 0.3~0.4.
This the displacement velocity reduction by the gas microbubble injection is comparable to the operational beam power of 0.33~0.5 without gas microbubble injection.
Future work will seek to improve the accuracy of the prediction of cavitation damage by considering the bubble effect and accumulating damage depth data of future targets.
It will be necessary to obtain more damage data for different operation conditions, as well as conduct off-beam damage experiments to clarify the dominant factor for damage mitigation on the narrow channel in future work.
The reduction in the displacement velocity by the gas microbubble injection compared to the without bubbles was by a factor of approximately 0.3~0.4.
This the displacement velocity reduction by the gas microbubble injection is comparable to the operational beam power of 0.33~0.5 without gas microbubble injection.
Future work will seek to improve the accuracy of the prediction of cavitation damage by considering the bubble effect and accumulating damage depth data of future targets.
It will be necessary to obtain more damage data for different operation conditions, as well as conduct off-beam damage experiments to clarify the dominant factor for damage mitigation on the narrow channel in future work.
Online since: January 2022
Authors: Romildo Dias Toledo Filho, Rayane de Lima Moura Paiva, Lucas Rosse Caldas, Adriana Paiva Souza Martins, Oscar A.M. Reales
For the Life Cycle Inventory (LCI) primary data was collected in the laboratory, while secondary data was collected from Ecoinvent v. 3.6 and scientific literature.
The electricity consumption of original Ecoinvent data was adapted to the Brazilian energy mix and market transports.
It was also found that the aparent density remained approximateley constant (less than 0.3% reduction), while the entrapped air content increased by up to 16%.
Comparing the values obtained from EBM 10-11 with EBM 7.5-13.5 and EBM 5-16, a reduction of 31% and 52% is observed for the rupture stress.
The stregth reduction found both in compressive and flexural testing can be can be asociated with the increase in FA content and decrease of CPV.
The electricity consumption of original Ecoinvent data was adapted to the Brazilian energy mix and market transports.
It was also found that the aparent density remained approximateley constant (less than 0.3% reduction), while the entrapped air content increased by up to 16%.
Comparing the values obtained from EBM 10-11 with EBM 7.5-13.5 and EBM 5-16, a reduction of 31% and 52% is observed for the rupture stress.
The stregth reduction found both in compressive and flexural testing can be can be asociated with the increase in FA content and decrease of CPV.
Online since: August 2023
Authors: Panagiotis D. Zervopoulos, Ebtisam Abdallah Alhammadi
The primary source of the data was the 2016 annual reports of several airports.
Data collection and analysis procedures: Sample.
OSIRIS is a fully-integrated public company database that provides a wide range of data sets (e.g., financials, ratings, news, earnings, stock data, etc.) for firms and organizations over 130 countries.
Network data envelopment analysis (NDEA).
Lee, Data envelopment analysis, The Stata Journal. 10(2) (2010) 267-280
Data collection and analysis procedures: Sample.
OSIRIS is a fully-integrated public company database that provides a wide range of data sets (e.g., financials, ratings, news, earnings, stock data, etc.) for firms and organizations over 130 countries.
Network data envelopment analysis (NDEA).
Lee, Data envelopment analysis, The Stata Journal. 10(2) (2010) 267-280
Online since: October 2014
Authors: Dong Wang, Hao Guo
Industrial development is extensive with heavy tasks of energy conservation and emission reduction in industrial fields.
Strengthen energy audit, energy consumption statistics and publicity work about public buildings, promote construction of public building energy efficiency and water saving supervision platforms, and carry out energy consumption subentry measures and real-time monitoring over all large-scale public buildings in the region; reinforce construction of energy consumption monitoring and energy conservation supervision systems to realize monitoring data sharing; carry out testing and marking of energy use efficiency towards newly-built and transformed large-scale public buildings; implement quota management over large-scale public building energy consumption (power consumption) and bring punitive prices into effect on the energy consumption exceeding the quota.
Vigorously develop energy-saving and environment-friendly green building materials, establish green building material certification system and compile green building material product catalogs; encourage the use of advanced energy conservation and emission reduction technologies and products, transform advanced mature energy conservation and emission reduction technologies, processes, construction methods and products towards engineering construction standards, and greatly promote the application of high-performance, low-material consumption and renewable building materials and advanced, applicable complete technology.
Market measures: positively encourage the enterprises in the Low-carbon City to participate in the carbon emission trading in Shenzhen and encourage the trading of emission reduction units generated from emission reduction projects, such as the “Certified Emission Reductions” under the clean development mechanism.
Administrative measures: introduce relevant measures to affix the responsibility of the units failing to accomplish the tasks of energy conservation and emission reduction as well as the energy conservation and emission reduction work leading group member units failing to fulfill or incorrectly fulfilling energy conservation and emission reduction job duties; develop low-carbon labeling system and introduce relevant standards and laws and regulations for calculating carbon footprints.
Strengthen energy audit, energy consumption statistics and publicity work about public buildings, promote construction of public building energy efficiency and water saving supervision platforms, and carry out energy consumption subentry measures and real-time monitoring over all large-scale public buildings in the region; reinforce construction of energy consumption monitoring and energy conservation supervision systems to realize monitoring data sharing; carry out testing and marking of energy use efficiency towards newly-built and transformed large-scale public buildings; implement quota management over large-scale public building energy consumption (power consumption) and bring punitive prices into effect on the energy consumption exceeding the quota.
Vigorously develop energy-saving and environment-friendly green building materials, establish green building material certification system and compile green building material product catalogs; encourage the use of advanced energy conservation and emission reduction technologies and products, transform advanced mature energy conservation and emission reduction technologies, processes, construction methods and products towards engineering construction standards, and greatly promote the application of high-performance, low-material consumption and renewable building materials and advanced, applicable complete technology.
Market measures: positively encourage the enterprises in the Low-carbon City to participate in the carbon emission trading in Shenzhen and encourage the trading of emission reduction units generated from emission reduction projects, such as the “Certified Emission Reductions” under the clean development mechanism.
Administrative measures: introduce relevant measures to affix the responsibility of the units failing to accomplish the tasks of energy conservation and emission reduction as well as the energy conservation and emission reduction work leading group member units failing to fulfill or incorrectly fulfilling energy conservation and emission reduction job duties; develop low-carbon labeling system and introduce relevant standards and laws and regulations for calculating carbon footprints.
Online since: August 2021
Authors: Jin Hao Li, Wunengerile Zhang, Yun Wu, Tegshi Muschin, Jing Chun Jia, Bao Agula
Before testing, degassing the material for 5 h at 100 ℃, calculated BET surface area based on adsorption data (p/p0=0.05-0.25).
Chen, Nitrogen-doped hierarchically porous carbon spheres as efficient metal-free electrocatalysts for an oxygen reduction reaction, J.
Pan, Hierarchically porous carbon with pentagon defects as highly efficient catalyst for oxygen reduction and oxygen evolution reactions, J.
Chen, Nitrogen-doped hierarchically porous carbon spheres as efficient metal-free electrocatalysts for an oxygen reduction reaction, J.
Yuan, P-doped mesoporous carbons for high-efficiency electrocatalytic oxygen reduction, Chinese J.
Chen, Nitrogen-doped hierarchically porous carbon spheres as efficient metal-free electrocatalysts for an oxygen reduction reaction, J.
Pan, Hierarchically porous carbon with pentagon defects as highly efficient catalyst for oxygen reduction and oxygen evolution reactions, J.
Chen, Nitrogen-doped hierarchically porous carbon spheres as efficient metal-free electrocatalysts for an oxygen reduction reaction, J.
Yuan, P-doped mesoporous carbons for high-efficiency electrocatalytic oxygen reduction, Chinese J.
Online since: July 2022
Authors: Romana Ewa Śliwa, Marek Zwolak, Beata Pawłowska, Tadeusz Balawender
Standard manufacturing techniques, such as extrusion, ought to be developed in order to find a beneficial solution allowing for structural weight reduction, which is a very efficient means of improving aircraft performance.
a) b) Fig. 6 Typical flow curves of AZ80 (a)and WE 43 (b) magnesium alloy determined in upsetting test The strain rates marked in Figures 5 and 6 are the mean values calculated from the recorded data of press ram velocity and specimen height during the upsetting test.
Increasing the complexity of the cross-section of the extruded profile requires a significant reduction of the extrusion rate as too fast extrusion rate causes extrusions to crack on the side surface and material pull in thin-walled part of extruded profile.
A reduction in force can be achieved by significantly reducing the extrusion speed.
· Increasing the complexity of the cross-section of the extruded profile requires a significant reduction of the extrusion rate as too fast extrusion rate causes extrudate to crack on the side surface and material pull in thin-walled section
a) b) Fig. 6 Typical flow curves of AZ80 (a)and WE 43 (b) magnesium alloy determined in upsetting test The strain rates marked in Figures 5 and 6 are the mean values calculated from the recorded data of press ram velocity and specimen height during the upsetting test.
Increasing the complexity of the cross-section of the extruded profile requires a significant reduction of the extrusion rate as too fast extrusion rate causes extrusions to crack on the side surface and material pull in thin-walled part of extruded profile.
A reduction in force can be achieved by significantly reducing the extrusion speed.
· Increasing the complexity of the cross-section of the extruded profile requires a significant reduction of the extrusion rate as too fast extrusion rate causes extrudate to crack on the side surface and material pull in thin-walled section