Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041194
S. H. Imran Jaffery, M. Younas, Mushtaq Khan, Liaqat Ali
One of the major concerns in manufacturing industries include the amount of energy consumed during machining processes. Therefore, the study of the specific energy during machining must be analyzed in relation to the process parameters (feed rate, speed and depth of cut). This work demonstrates the analysis of specific cutting energy (SCE) and cutting power during titanium alloys machining under dry conditions. Turning experiments with uncoated carbide inserts were performed applying Taguchi Design of Experiments technique and analyzed the effect of speed, feed and depth of cut during turning Ti-6Al-4V titanium alloys. ANOVA was done to find out the influence of the machining parameters on energy consumption. The outcome of this analysis indicates that feed rate is the highly dominant factor responsible for the SCE of a machine tool, whereas, cutting speed was found as the influential factor affecting the power during the machining process. The environmental and economic performance for a machining process may be significantly improved by reducing energy consumption using appropriate machining conditions.
{"title":"Energy Consumption Analysis in Turning Ti-6Al-4V alloy","authors":"S. H. Imran Jaffery, M. Younas, Mushtaq Khan, Liaqat Ali","doi":"10.1109/ICMIMT49010.2020.9041194","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041194","url":null,"abstract":"One of the major concerns in manufacturing industries include the amount of energy consumed during machining processes. Therefore, the study of the specific energy during machining must be analyzed in relation to the process parameters (feed rate, speed and depth of cut). This work demonstrates the analysis of specific cutting energy (SCE) and cutting power during titanium alloys machining under dry conditions. Turning experiments with uncoated carbide inserts were performed applying Taguchi Design of Experiments technique and analyzed the effect of speed, feed and depth of cut during turning Ti-6Al-4V titanium alloys. ANOVA was done to find out the influence of the machining parameters on energy consumption. The outcome of this analysis indicates that feed rate is the highly dominant factor responsible for the SCE of a machine tool, whereas, cutting speed was found as the influential factor affecting the power during the machining process. The environmental and economic performance for a machining process may be significantly improved by reducing energy consumption using appropriate machining conditions.","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124846222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041220
Wenbin Zhang, Chengliang Zhang, Chengbin Li, He Zhang
Intelligent recognition technology is an extremely important research content in artificial intelligence and an important part of modern intelligent handling systems. For this project, a research scheme of "OpenCV-based color recognition grab robot" is proposed. Machine vision is used to integrate the three-axis truss manipulator structure, and visual recognition, positioning technology and manipulator devices are used to sort and transport targets with different color characteristics.
{"title":"Object color recognition and sorting robot based on OpenCV and machine vision","authors":"Wenbin Zhang, Chengliang Zhang, Chengbin Li, He Zhang","doi":"10.1109/ICMIMT49010.2020.9041220","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041220","url":null,"abstract":"Intelligent recognition technology is an extremely important research content in artificial intelligence and an important part of modern intelligent handling systems. For this project, a research scheme of \"OpenCV-based color recognition grab robot\" is proposed. Machine vision is used to integrate the three-axis truss manipulator structure, and visual recognition, positioning technology and manipulator devices are used to sort and transport targets with different color characteristics.","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121698650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/icmimt49010.2020.9041221
{"title":"[Title page]","authors":"","doi":"10.1109/icmimt49010.2020.9041221","DOIUrl":"https://doi.org/10.1109/icmimt49010.2020.9041221","url":null,"abstract":"","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114936792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/icmimt49010.2020.9041169
{"title":"[Copyright notice]","authors":"","doi":"10.1109/icmimt49010.2020.9041169","DOIUrl":"https://doi.org/10.1109/icmimt49010.2020.9041169","url":null,"abstract":"","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132445495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041192
A. Radionov, V. Gasiyarov, A. Karandaev, D. Usatiy, V. Khramshin
The paper describes the characteristics of the reversing 5000 rolling mill stand from Magnitogorsk Iron and Steel Works (MMK PJSC). Causes for intolerable dynamic loads during biting are noted. It is shown in the text that one of such causes is angular plays in spindle joints. The paper considers the mechanism for creation of impact loads in case of angular play lock. Also, the paper describes a well-known method for enforced angular play lock before biting, by means of preliminary electric drive boost. It is shown that this method cannot fully compensate the dynamic torque. The reason for this is torque overcontrol during shock loading which depends on how the automatic electric drive speed control system is configured. The paper provides a brief description of the designed math model, presents modeling results proving the conclusion. Also, the paper suggests a method for limiting the dynamic torque through preventive acceleration (boosting) to compensate the value of a dynamic speed control error. Engine speed and torque oscillograms recorded during implementing this method on rolling mill 5000 are presented. Dynamic torque reduction and speed control error are confirmed. Focus areas for further advancements are drawn up.
{"title":"Dynamic Load Limitation in Electromechanical Systems of the Rolling Mill Stand during Biting","authors":"A. Radionov, V. Gasiyarov, A. Karandaev, D. Usatiy, V. Khramshin","doi":"10.1109/ICMIMT49010.2020.9041192","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041192","url":null,"abstract":"The paper describes the characteristics of the reversing 5000 rolling mill stand from Magnitogorsk Iron and Steel Works (MMK PJSC). Causes for intolerable dynamic loads during biting are noted. It is shown in the text that one of such causes is angular plays in spindle joints. The paper considers the mechanism for creation of impact loads in case of angular play lock. Also, the paper describes a well-known method for enforced angular play lock before biting, by means of preliminary electric drive boost. It is shown that this method cannot fully compensate the dynamic torque. The reason for this is torque overcontrol during shock loading which depends on how the automatic electric drive speed control system is configured. The paper provides a brief description of the designed math model, presents modeling results proving the conclusion. Also, the paper suggests a method for limiting the dynamic torque through preventive acceleration (boosting) to compensate the value of a dynamic speed control error. Engine speed and torque oscillograms recorded during implementing this method on rolling mill 5000 are presented. Dynamic torque reduction and speed control error are confirmed. Focus areas for further advancements are drawn up.","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121686978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041184
Ye Jieran, W. Aimin, Ge Yan, Shen Xinyi
For the flexible job-shop scheduling problem, an optimal scheduling model with the objective of minimum completion time is established, and an improved grey wolf optimizer is proposed. The algorithm improves the coding method based on Largest Order Value rule of the grey wolf optimizer. At the same time, a local search strategy is introduced to effectively balance the exploration ability and development ability of the algorithm. Finally, experiments verify the effectiveness of the algorithm.
{"title":"An Improved Grey Wolf Optimizer for Flexible Job-shop Scheduling Problem","authors":"Ye Jieran, W. Aimin, Ge Yan, Shen Xinyi","doi":"10.1109/ICMIMT49010.2020.9041184","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041184","url":null,"abstract":"For the flexible job-shop scheduling problem, an optimal scheduling model with the objective of minimum completion time is established, and an improved grey wolf optimizer is proposed. The algorithm improves the coding method based on Largest Order Value rule of the grey wolf optimizer. At the same time, a local search strategy is introduced to effectively balance the exploration ability and development ability of the algorithm. Finally, experiments verify the effectiveness of the algorithm.","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124221967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041170
P. Sob, M. Pita
The current global crisis of climate change has forced engineers to redesigned automotive cars that will require less fuel combustion and burning of gases to reduced pollution. This has seen energy optimization with less emission control in the automotive industries. This research study presents a simulation of the major parameters for energy regeneration in automotive hydraulic shock absorber during car operation. This involves the simulation of major parameters during damping which impacts the oscillatory motion of the car during motion into rotary motion. In the simulation process, the influence of hydraulic dynamic flow, velocity, pressure and kinetic energy during damping was taken in to consideration during simulation. Parameter such as the bulk fluid modulus, viscous friction torque, and compressive flow in fluid dynamics, motor efficiencies, and torque constant coefficients were simulated theoretically using the theory of stochastic mechanics. It was also shown that the resistance also caused a change in geometry between the working cylinder and reserve cylinder when fluid experiences a change in velocity due to turbulence. It was also shown that the fluid thickness in the damper during damping created turbulent flow and eddies which moves randomly and also affected the energy harvesting process. The drop is pressure during damping is also proportional to the square of velocity the drop in pressure due to the increase in average speed during damping and this can be related to the transfer of Kinetic Energy from the random molecular motion to stochastic mean motion
{"title":"Simulation and theoretical Analyses of the Impact of Velocity, Pressure and Kinetic Energy during Damping in a Shock absorber","authors":"P. Sob, M. Pita","doi":"10.1109/ICMIMT49010.2020.9041170","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041170","url":null,"abstract":"The current global crisis of climate change has forced engineers to redesigned automotive cars that will require less fuel combustion and burning of gases to reduced pollution. This has seen energy optimization with less emission control in the automotive industries. This research study presents a simulation of the major parameters for energy regeneration in automotive hydraulic shock absorber during car operation. This involves the simulation of major parameters during damping which impacts the oscillatory motion of the car during motion into rotary motion. In the simulation process, the influence of hydraulic dynamic flow, velocity, pressure and kinetic energy during damping was taken in to consideration during simulation. Parameter such as the bulk fluid modulus, viscous friction torque, and compressive flow in fluid dynamics, motor efficiencies, and torque constant coefficients were simulated theoretically using the theory of stochastic mechanics. It was also shown that the resistance also caused a change in geometry between the working cylinder and reserve cylinder when fluid experiences a change in velocity due to turbulence. It was also shown that the fluid thickness in the damper during damping created turbulent flow and eddies which moves randomly and also affected the energy harvesting process. The drop is pressure during damping is also proportional to the square of velocity the drop in pressure due to the increase in average speed during damping and this can be related to the transfer of Kinetic Energy from the random molecular motion to stochastic mean motion","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131650343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041163
S. Kajiwara
This paper presents a control method of a check ball in hydraulic L-shaped pipe by Magnus effect. The spring-driven ball-type check valve is one of the most important components of hydraulic systems: it controls the position of the ball and prevents backward flow. To simplify the structure, the spring must be eliminated, and to accomplish this, the flow pattern and the behavior of the check ball in the L-shaped pipe must be determined. In this paper, by using CAE tool, we clarified the relationship between the position of the inlet pipe and the check flow rate. By moving the position of the inflow pipe from the center of the housing, a strong swirling flow is generated in the entire housing to give rotational motion to the check ball. Magnus force was exerted by this rotation and it was found that the check flow rate was small and the levitation time was advanced.
{"title":"Control of a check ball in hydraulic L-shaped pipe by Magnus effect","authors":"S. Kajiwara","doi":"10.1109/ICMIMT49010.2020.9041163","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041163","url":null,"abstract":"This paper presents a control method of a check ball in hydraulic L-shaped pipe by Magnus effect. The spring-driven ball-type check valve is one of the most important components of hydraulic systems: it controls the position of the ball and prevents backward flow. To simplify the structure, the spring must be eliminated, and to accomplish this, the flow pattern and the behavior of the check ball in the L-shaped pipe must be determined. In this paper, by using CAE tool, we clarified the relationship between the position of the inlet pipe and the check flow rate. By moving the position of the inflow pipe from the center of the housing, a strong swirling flow is generated in the entire housing to give rotational motion to the check ball. Magnus force was exerted by this rotation and it was found that the check flow rate was small and the levitation time was advanced.","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123716367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041165
Paul K. Heisler, Marlene Kuhn, Robert Süß-Wolf, J. Franke
The recent trends in the automotive sector are challenging the manufacturers of wire harnesses. Automation, connectivity, and electrification are the key developments for a future car which should on one hand run autonomous and on the other hand have a highly reduced carbon emission. Those advances place higher demands on energy, data and signal transmission which leads to a significant complexity increase of the wiring. Due to their complexity and their impact on its reliability wire harnesses are one of the most important and costly components of modern-day cars. Their labor-intensive production process has seen marginal progress towards a higher degree of automation in recent years and remains predominantly manual. The manual taping process is with over 30% production time proportion one of the most elaborate process of the wire harness manufacturing and represents the highest need for automation and optimization. This paper summarizes the results of a study on alternative processes for replacing the manual taping process and shows further developments and research directions. The study contains the conception and validation of two prototypical test setups for two different coating processes. The research findings identify challenges that can be eliminated by presented further developed solutions.
{"title":"Innovative Solutions for the Covering Process in the Manufacturing of Wire Harnesses to Increase the Automation Degree","authors":"Paul K. Heisler, Marlene Kuhn, Robert Süß-Wolf, J. Franke","doi":"10.1109/ICMIMT49010.2020.9041165","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041165","url":null,"abstract":"The recent trends in the automotive sector are challenging the manufacturers of wire harnesses. Automation, connectivity, and electrification are the key developments for a future car which should on one hand run autonomous and on the other hand have a highly reduced carbon emission. Those advances place higher demands on energy, data and signal transmission which leads to a significant complexity increase of the wiring. Due to their complexity and their impact on its reliability wire harnesses are one of the most important and costly components of modern-day cars. Their labor-intensive production process has seen marginal progress towards a higher degree of automation in recent years and remains predominantly manual. The manual taping process is with over 30% production time proportion one of the most elaborate process of the wire harness manufacturing and represents the highest need for automation and optimization. This paper summarizes the results of a study on alternative processes for replacing the manual taping process and shows further developments and research directions. The study contains the conception and validation of two prototypical test setups for two different coating processes. The research findings identify challenges that can be eliminated by presented further developed solutions.","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"42 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114022047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.1109/ICMIMT49010.2020.9041198
V. Hashe, T. Jen
Low-grade magnesium (Mg) waste from postconsumer products and production waste cannot be recycled efficiently and economically. This work addresses this challenge by converting this waste into hydrogen. Hydrogen (H2) offers a wide range of benefits and the greatest of them all is its ability and flexibility to be used as a green energy carrier. In this work Mg waste is re-melted, loaded on one side of a stainless steel and allowed to solidify at room temperature to form a galvanic Mg stainless steel couple. Mg reacts slowly with water and releases hydrogen at room temperature and this is followed by the formation of magnesium hydroxide on its surface. Stainless steel net is considered as a metallic catalyst and two acids as accelerators reacting with the couples separately. A set of couples were used to generate hydrogen in 3.5% by weight acetic acid (CH3COOH). The experimental results show that a mean accumulated H2 volume of 3.17 – 3.21 litres was produced in 3600 seconds. Another set of couples produced H2 in 1.5 wt. % of iron chloride (FeCb). The results confirmed FeCl3 as an excellent hydrolysis reaction accelerator with stainless steel as an effective catalyst. On average, the reaction yielded 2700mL of H2 over 3600 seconds which appear to be substantially higher than the litres achieve when CH3COOH was considered as an accelerator.
{"title":"Comparative study of Hydrogen yield from magnesium waste products in Acetic acid and Iron chloride solution","authors":"V. Hashe, T. Jen","doi":"10.1109/ICMIMT49010.2020.9041198","DOIUrl":"https://doi.org/10.1109/ICMIMT49010.2020.9041198","url":null,"abstract":"Low-grade magnesium (Mg) waste from postconsumer products and production waste cannot be recycled efficiently and economically. This work addresses this challenge by converting this waste into hydrogen. Hydrogen (H2) offers a wide range of benefits and the greatest of them all is its ability and flexibility to be used as a green energy carrier. In this work Mg waste is re-melted, loaded on one side of a stainless steel and allowed to solidify at room temperature to form a galvanic Mg stainless steel couple. Mg reacts slowly with water and releases hydrogen at room temperature and this is followed by the formation of magnesium hydroxide on its surface. Stainless steel net is considered as a metallic catalyst and two acids as accelerators reacting with the couples separately. A set of couples were used to generate hydrogen in 3.5% by weight acetic acid (CH3COOH). The experimental results show that a mean accumulated H2 volume of 3.17 – 3.21 litres was produced in 3600 seconds. Another set of couples produced H2 in 1.5 wt. % of iron chloride (FeCb). The results confirmed FeCl3 as an excellent hydrolysis reaction accelerator with stainless steel as an effective catalyst. On average, the reaction yielded 2700mL of H2 over 3600 seconds which appear to be substantially higher than the litres achieve when CH3COOH was considered as an accelerator.","PeriodicalId":377249,"journal":{"name":"2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115918584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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