Milena Petrović, A. Milic, Vasilija J. Joksimović, Tamara Stanojević, Aleksandar Vasić
This paper presents the System for internal communication and its functional compatibility with embedded subsystems inside the command armored vehicle. The paper discusses about possible effects of different types of electromagnetic interference on use of the device and the potential solution. Analysis of the obtained results and functional checks of the device aim the presentation of modernity, perspective and ability to meet the rising demands in future different and heterogeneous network technology. The diversity and complexity in managing this device have been the main driving factors in the evolution and enhancement of the military communication to provide control for not only packet based domains, but also to reduce voice and data latency transmission and to increase the response for battle request in real time. In this paper the method and technology which suggest possible application in the military environment where this device can resolve the problems of several network and devices types are shown.
{"title":"System for internal communication and its implementation in military tactical communications network","authors":"Milena Petrović, A. Milic, Vasilija J. Joksimović, Tamara Stanojević, Aleksandar Vasić","doi":"10.5937/str2201012p","DOIUrl":"https://doi.org/10.5937/str2201012p","url":null,"abstract":"This paper presents the System for internal communication and its functional compatibility with embedded subsystems inside the command armored vehicle. The paper discusses about possible effects of different types of electromagnetic interference on use of the device and the potential solution. Analysis of the obtained results and functional checks of the device aim the presentation of modernity, perspective and ability to meet the rising demands in future different and heterogeneous network technology. The diversity and complexity in managing this device have been the main driving factors in the evolution and enhancement of the military communication to provide control for not only packet based domains, but also to reduce voice and data latency transmission and to increase the response for battle request in real time. In this paper the method and technology which suggest possible application in the military environment where this device can resolve the problems of several network and devices types are shown.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71085970","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}
Plastic Explosive Compositions consisting of HMX and liquid polyurethane binder were prepared in order to determine influence of differently cured polymeric binders on rheological properties of plastic explosives. First, a set of polymeric binders was prepared in polyaddition reaction between HTPB and IPDI, with varying NCO:OH ratio and examined through the standard and non-standard rheological tests on a dynamic rotational rheometer. Viscosity curves of polymeric binders show viscosity increase with NCO:OH ratio increase, as expected. Amplitude sweep tests reveal liquid-like structure of PEs, with structure strength increase with higher NCO:OH ratio of polymeric binder used, and limiting values of LVER vary from 10-3 to 10-2 strain. Results of creep test reveal that with increase of NCO:OH ratio of polymeric binder in PE zero-shear viscosity increase and viscous portion deformation decrease. Also, penetration decrease with increase of NCO:OH ratio. The obtained results indicate that initial rheology testing is crucial in plastic explosive formulation regarding their processability and physical properties.
{"title":"Influence of differently cured polymeric binders on rheology properties of plastic explosives","authors":"Danica Bajić, I. Dimitrijević, Slavica Terzić","doi":"10.5937/str2202038b","DOIUrl":"https://doi.org/10.5937/str2202038b","url":null,"abstract":"Plastic Explosive Compositions consisting of HMX and liquid polyurethane binder were prepared in order to determine influence of differently cured polymeric binders on rheological properties of plastic explosives. First, a set of polymeric binders was prepared in polyaddition reaction between HTPB and IPDI, with varying NCO:OH ratio and examined through the standard and non-standard rheological tests on a dynamic rotational rheometer. Viscosity curves of polymeric binders show viscosity increase with NCO:OH ratio increase, as expected. Amplitude sweep tests reveal liquid-like structure of PEs, with structure strength increase with higher NCO:OH ratio of polymeric binder used, and limiting values of LVER vary from 10-3 to 10-2 strain. Results of creep test reveal that with increase of NCO:OH ratio of polymeric binder in PE zero-shear viscosity increase and viscous portion deformation decrease. Also, penetration decrease with increase of NCO:OH ratio. The obtained results indicate that initial rheology testing is crucial in plastic explosive formulation regarding their processability and physical properties.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71086415","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}
Đ. Lazarević, Marko Zivkovic, Đorđe Kocić, J. Ćirić
Current measurement in power electronic systems is a necessary part of the measurement process. There are different ways for current measurement like using current transformers or using the Rogowski coils which are not precise enough in many applications and not suitable for use in power electronic measurement systems. For that reason, the Hall effect-based sensor can be used as a very precise alternative with minimum external components. Presented in this paper is utilizing the Hall effect current sensor ACS712 for current measurement with a microcontroller system. The measurement with the Hall effect sensor is described with an appropriate comparison of the measurement values on a microcontroller system and multimeter and high precision power analyzer Chauvin Arnoux 8335.
{"title":"The utilizing Hall effect-based current sensor ACS712 for true RMS current measurement in power electronic systems","authors":"Đ. Lazarević, Marko Zivkovic, Đorđe Kocić, J. Ćirić","doi":"10.5937/str2201027l","DOIUrl":"https://doi.org/10.5937/str2201027l","url":null,"abstract":"Current measurement in power electronic systems is a necessary part of the measurement process. There are different ways for current measurement like using current transformers or using the Rogowski coils which are not precise enough in many applications and not suitable for use in power electronic measurement systems. For that reason, the Hall effect-based sensor can be used as a very precise alternative with minimum external components. Presented in this paper is utilizing the Hall effect current sensor ACS712 for current measurement with a microcontroller system. The measurement with the Hall effect sensor is described with an appropriate comparison of the measurement values on a microcontroller system and multimeter and high precision power analyzer Chauvin Arnoux 8335.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71085642","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}
The presented research deals with the optimal design of the main girder with an asymmetric box cross-section of the double-beam bridge crane. The Moth-Flame Optimization algorithm (MFO) is used for solving this multicriteria optimization problem. This algorithm is a relatively new population-based metaheuristic method. The paper takes the following criteria as the constraint functions: strength, local stability of the girder plates (webs and top flange), local stability of the longitudinal stiffeners, global stability of the main girder, deflections, and period of oscillation. The justification of the proposed procedure is shown in one example of a real solution of the double-beam bridge crane. Significant savings in material were achieved in this research, within the range of 19.42 to 25.49%. The use of this algorithm enables the application of a very large number of variables and constraint functions, whereby the optimal values are obtained in a relatively short period.
{"title":"Analysis and optimization of the main girder of the bridge crane with an asymmetric box cross-section","authors":"Goran V Pavlović, M. Savković","doi":"10.5937/str2201003p","DOIUrl":"https://doi.org/10.5937/str2201003p","url":null,"abstract":"The presented research deals with the optimal design of the main girder with an asymmetric box cross-section of the double-beam bridge crane. The Moth-Flame Optimization algorithm (MFO) is used for solving this multicriteria optimization problem. This algorithm is a relatively new population-based metaheuristic method. The paper takes the following criteria as the constraint functions: strength, local stability of the girder plates (webs and top flange), local stability of the longitudinal stiffeners, global stability of the main girder, deflections, and period of oscillation. The justification of the proposed procedure is shown in one example of a real solution of the double-beam bridge crane. Significant savings in material were achieved in this research, within the range of 19.42 to 25.49%. The use of this algorithm enables the application of a very large number of variables and constraint functions, whereby the optimal values are obtained in a relatively short period.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71085950","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}
Branislav Milenković, Đorđe E Jovanović, Mladen Krstić
Optimization algorithms plays a vital role in mechanical engineering. In this paper we have demonstrated how the Reptile Search Algorithm (RSA) algorithm is able to solve classical engineering design problems. In the first part, the biological reference, as well as a detailed overview of the algorithm is given. Afterwards, the RSA algorithm and the potential to solve the machine engineering design class of problems is given. The source code for this algorithm was written using MATLAB R2020a software suite. The Reptile Search Algorithm (RSA) algorithm was used for optimization problems in the field of engineering design, such as: pressure vessel optimization, disk brake optimization and cantilever beam optimization. The statistical results and comparisons show that the RSA algorithm provides comparable results to other state-of-the-art algorithms used for this problem.
{"title":"Mechanical engineering design optimization using reptile search algorithm","authors":"Branislav Milenković, Đorđe E Jovanović, Mladen Krstić","doi":"10.5937/str2201022m","DOIUrl":"https://doi.org/10.5937/str2201022m","url":null,"abstract":"Optimization algorithms plays a vital role in mechanical engineering. In this paper we have demonstrated how the Reptile Search Algorithm (RSA) algorithm is able to solve classical engineering design problems. In the first part, the biological reference, as well as a detailed overview of the algorithm is given. Afterwards, the RSA algorithm and the potential to solve the machine engineering design class of problems is given. The source code for this algorithm was written using MATLAB R2020a software suite. The Reptile Search Algorithm (RSA) algorithm was used for optimization problems in the field of engineering design, such as: pressure vessel optimization, disk brake optimization and cantilever beam optimization. The statistical results and comparisons show that the RSA algorithm provides comparable results to other state-of-the-art algorithms used for this problem.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71085916","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}
The importance of investigation of main explosive charge initiation using booster charge stems directly from the objective to optimize the mass of booster charge needed to ensure steady state detonation of main explosive charge in order to achieve maximum projectile efficiency. Considered configuration consists of two explosives and three metal parts which represent elements of fuze and projectile. The main objective of this paper is to develop a numerical model of initiation of main explosive charge of an insensitive artillery ammunition. Through this research two variants of detonation point location were analyzed, ideal and stochastic one. The effects of the detonation transfer are analyzed using the Jones-Wilkins-Lee and Ignition and Growth equation of state models for explosives, applying the Coupled Eulerian-Lagrangian approach in the Abaqus/Explicit software. Analytical computation is introduced in this paper with a purpose to present P-u interaction between configuration elements and for comparison with results obtained by numerical method. The results of analytical and numerical approach are presented and discussed in detail. It is shown that suggested numerical model enables simulation and optimization of explosive train in fuzes of HE projectiles.
{"title":"Numerical analysis of initiation of main explosive charge in an artillery projectile","authors":"Stjepan Tomić, P. Elek","doi":"10.5937/str2201048t","DOIUrl":"https://doi.org/10.5937/str2201048t","url":null,"abstract":"The importance of investigation of main explosive charge initiation using booster charge stems directly from the objective to optimize the mass of booster charge needed to ensure steady state detonation of main explosive charge in order to achieve maximum projectile efficiency. Considered configuration consists of two explosives and three metal parts which represent elements of fuze and projectile. The main objective of this paper is to develop a numerical model of initiation of main explosive charge of an insensitive artillery ammunition. Through this research two variants of detonation point location were analyzed, ideal and stochastic one. The effects of the detonation transfer are analyzed using the Jones-Wilkins-Lee and Ignition and Growth equation of state models for explosives, applying the Coupled Eulerian-Lagrangian approach in the Abaqus/Explicit software. Analytical computation is introduced in this paper with a purpose to present P-u interaction between configuration elements and for comparison with results obtained by numerical method. The results of analytical and numerical approach are presented and discussed in detail. It is shown that suggested numerical model enables simulation and optimization of explosive train in fuzes of HE projectiles.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71086516","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}
J. Svorcan, Aleksandar Kovačević, Toni Ivanov, A. Simonović
Detailed studies of propeller flows are regaining both interest and significance worldwide, as the number of their different design and applications (particularly for futuristic urban air vehicles) continues to grow. An additional distinctive characteristic of small-scale unmanned air vehicles (UAV) propellers is that they are meant to operate in a wide range of (previously considered atypical) operating conditions, including backward flight, flight in the vicinity of obstacles, hard/ground surfaces, etc. These specific requirements raise the issue of the effects of ground proximity on their aerodynamic performance. This paper computationally investigates flows around a small-scale, custom-made propeller in ground effect. Different ground distances are considered and novel thrust and power relations (dependencies) on them are proposed. In order to obtain sufficiently reliable and accurate results and capture the most significant flow features, Reynolds-averaged Navier-Stokes (RANS) equations are solved by finite volume method. In addition, interesting flow visualizations are presented. Although the obtained thrust trend correlates well with the conventionally used semi-empirical formula, more realistic estimations are obtained for small ground distances. Furthermore, the positive effects of ground vicinity on rotor aerodynamic performances are once again confirmed and quantified.
{"title":"Numerical analysis of o propeller in ground effect","authors":"J. Svorcan, Aleksandar Kovačević, Toni Ivanov, A. Simonović","doi":"10.5937/str2202008s","DOIUrl":"https://doi.org/10.5937/str2202008s","url":null,"abstract":"Detailed studies of propeller flows are regaining both interest and significance worldwide, as the number of their different design and applications (particularly for futuristic urban air vehicles) continues to grow. An additional distinctive characteristic of small-scale unmanned air vehicles (UAV) propellers is that they are meant to operate in a wide range of (previously considered atypical) operating conditions, including backward flight, flight in the vicinity of obstacles, hard/ground surfaces, etc. These specific requirements raise the issue of the effects of ground proximity on their aerodynamic performance. This paper computationally investigates flows around a small-scale, custom-made propeller in ground effect. Different ground distances are considered and novel thrust and power relations (dependencies) on them are proposed. In order to obtain sufficiently reliable and accurate results and capture the most significant flow features, Reynolds-averaged Navier-Stokes (RANS) equations are solved by finite volume method. In addition, interesting flow visualizations are presented. Although the obtained thrust trend correlates well with the conventionally used semi-empirical formula, more realistic estimations are obtained for small ground distances. Furthermore, the positive effects of ground vicinity on rotor aerodynamic performances are once again confirmed and quantified.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71086392","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}
This paper discusses the theoretical foundations and definitions of controlling and internal auditing as tools that help the organisation's management in managing business compliance and business continuity, with the purpose of meeting the organisation's objectives, by assessing the effectiveness of risk management inside the organisation, as well as of control and management. Considering the contemporary trends in organisational management, where the management is faced with frequent crises that require rapid and comprehensive action and response to risks, where internal auditing information is focused on the past, there is a need to implement controlling in organisations to provide help to the management for the future. The aim of this paper is to highlight the need to introduce controlling at the Ministry of Defence in order to improve the work of this organisation and to provide strong support in preventing the existing problems and to develop innovative systems of solutions that go beyond mere financial reporting.
{"title":"Controlling and internal auditing at the Ministry of Defence","authors":"Igor Đorić, M. Ranisavljević, M. Milojević","doi":"10.5937/str2202066d","DOIUrl":"https://doi.org/10.5937/str2202066d","url":null,"abstract":"This paper discusses the theoretical foundations and definitions of controlling and internal auditing as tools that help the organisation's management in managing business compliance and business continuity, with the purpose of meeting the organisation's objectives, by assessing the effectiveness of risk management inside the organisation, as well as of control and management. Considering the contemporary trends in organisational management, where the management is faced with frequent crises that require rapid and comprehensive action and response to risks, where internal auditing information is focused on the past, there is a need to implement controlling in organisations to provide help to the management for the future. The aim of this paper is to highlight the need to introduce controlling at the Ministry of Defence in order to improve the work of this organisation and to provide strong support in preventing the existing problems and to develop innovative systems of solutions that go beyond mere financial reporting.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71086910","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}
Nadica Ilic, L. Radović, Maja Mladenović, Jovana Mandić, Vesna Pejović
In this paper a fractured connector plate for a telescoping antenna mast made of aluminum alloy EN-AW 2007 was examined. The goal of the investigation was to determine the cause of fracture which occurred during attempting to raise the antenna. Specimens taken from the mast were visually examined, and the fracture surface was examined using a scanning electron microscope. Chemical analysis, microstructural analysis, electrical conductivity measurements, tensile test and hardness test were performed in order to investigate the properties of the material. Fracture occurred fast and visual and fractographic examinations showed that there is no visible plastic deformation near the fracture surface, which are characteristics of a quasibrittle fracture. It was shown that the mechanical properties of the examined specimens do not satisfy the minimal values defined in the standard for this material. All conducted tests indicated that the material had not been heat treated and mechanically worked, so applied stress during handling/raising the antenna led to the rapid quasibrittle fracture.
{"title":"Fracture analysis of vehicle-mounted telescoping communications mast","authors":"Nadica Ilic, L. Radović, Maja Mladenović, Jovana Mandić, Vesna Pejović","doi":"10.5937/str2202056i","DOIUrl":"https://doi.org/10.5937/str2202056i","url":null,"abstract":"In this paper a fractured connector plate for a telescoping antenna mast made of aluminum alloy EN-AW 2007 was examined. The goal of the investigation was to determine the cause of fracture which occurred during attempting to raise the antenna. Specimens taken from the mast were visually examined, and the fracture surface was examined using a scanning electron microscope. Chemical analysis, microstructural analysis, electrical conductivity measurements, tensile test and hardness test were performed in order to investigate the properties of the material. Fracture occurred fast and visual and fractographic examinations showed that there is no visible plastic deformation near the fracture surface, which are characteristics of a quasibrittle fracture. It was shown that the mechanical properties of the examined specimens do not satisfy the minimal values defined in the standard for this material. All conducted tests indicated that the material had not been heat treated and mechanically worked, so applied stress during handling/raising the antenna led to the rapid quasibrittle fracture.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71087017","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}
The efficiency of the weapon system has been usually studied by altering the guidance and control or aerodynamics of the missile. This research investigated methods of enhancing the efficiency of the weapon system against soft targets based on the fragmentation warhead design. Different warhead geometric configurations, initiation points, as well as premade fragment material and shapes have been studied to enhance overall weapon efficiency against soft target. The study considered the static fragment distribution and velocity as the base for the analysis. A new vulnerability code has been developed based on the mean area of effectiveness to prove the study using both simulations and field tests. There were significant improvements on the weapon efficiency by altering the warhead parameters. The simulated results showed good correspondence with the test results. The newly developed vulnerability code can be considered as an additional system engineering analysis tool for the calculations of weapon efficiency.
{"title":"Efficiency analysis of a fragmentation warhead against soft targets","authors":"Ameri Al, P. Elek","doi":"10.5937/str2202019a","DOIUrl":"https://doi.org/10.5937/str2202019a","url":null,"abstract":"The efficiency of the weapon system has been usually studied by altering the guidance and control or aerodynamics of the missile. This research investigated methods of enhancing the efficiency of the weapon system against soft targets based on the fragmentation warhead design. Different warhead geometric configurations, initiation points, as well as premade fragment material and shapes have been studied to enhance overall weapon efficiency against soft target. The study considered the static fragment distribution and velocity as the base for the analysis. A new vulnerability code has been developed based on the mean area of effectiveness to prove the study using both simulations and field tests. There were significant improvements on the weapon efficiency by altering the warhead parameters. The simulated results showed good correspondence with the test results. The newly developed vulnerability code can be considered as an additional system engineering analysis tool for the calculations of weapon efficiency.","PeriodicalId":33842,"journal":{"name":"Scientific Technical Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71086083","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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