{"title":"SEVEN ReImagined: A Transmedia Storytelling Evolution Proposal","authors":"Joana Braguez","doi":"10.25046/aj080414","DOIUrl":"https://doi.org/10.25046/aj080414","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87757228","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}
Ralf Sommer, Carsten Thomas Gatermann, Felix Vierling
{"title":"A Circuit Designer’s Perspective to MOSFET Behaviour: Common Questions and Practical Insights","authors":"Ralf Sommer, Carsten Thomas Gatermann, Felix Vierling","doi":"10.25046/aj080406","DOIUrl":"https://doi.org/10.25046/aj080406","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81892984","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}
Helmy Dewanto Bryantono, M. Saduk, Ji-won Hong, Meng-Hsun Tsai, S. Tseng
{"title":"Design and Manufacturing of Soft Grippers for Robotics by Injection Molding Technology","authors":"Helmy Dewanto Bryantono, M. Saduk, Ji-won Hong, Meng-Hsun Tsai, S. Tseng","doi":"10.25046/aj080402","DOIUrl":"https://doi.org/10.25046/aj080402","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78133993","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}
S. F. Abdel-Momen, Abdelhahim Zekry, Ashraf Yehia Hassan, Wageeda Ibrahim Shaban, M. Shiple
{"title":"FPGA Implementation of 5G NR LDPC Codes","authors":"S. F. Abdel-Momen, Abdelhahim Zekry, Ashraf Yehia Hassan, Wageeda Ibrahim Shaban, M. Shiple","doi":"10.25046/aj080411","DOIUrl":"https://doi.org/10.25046/aj080411","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72700970","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}
Optical payloads are widely used in many fields, such as aerospace, drones, autonomous vehicles, or other highly precise instrumentation. Vibration is one of the causes that greatly affect the quality of data of highly precise optical payloads. Recently, many researcher focuses on isolating the vibration for the precise equipment, those study just only mention the overcoming of vibration in one or two directions, but in reality, an object will exist vibration in six directions in space. Therefore, it is necessary to find a new mechanism that can isolate vibration in six axes in space. The parallel mechanism is considered a viable system because of its strengths in accuracy, rigidity, and stability. In this research, the author proposes a novel 6-DOF passive vibration isolator based on the Steward platform with S-shaped legs. We have developed a 6-DOF passive vibration isolator using the S-shaped non-linear stiffness and damping characteristics. In this study, the model parameters of a vibration isolator device with legs using an S-shaped will be proposed. Based on geometrical parameters and vibration sources and some loads assuming the structure's durability problem will be calculated and evaluated the efficiency of the isolator at different frequencies. With the specially designed S-shaped it can be deformity like a spring, and with the change of structural and material parameters, we can adjust the system's stiffness and damping capacity. Due to the high static stiffness and low dynamic stiffness of each leg, and thus it is designable to isolate very well vibration isolation performance in all six directions. This research is organized as firstly the kinematics and 3D model are introduced. Secondly, the stiffness matrix of the novel 6-DOF passive vibration isolators is presented. Statics analysis of the 6-DOF passive vibration isolators revealed that the S-shaped structure provides sufficient load-carrying capacity and isolation due to its very good static nonlinear stiffness. The dynamic stiffness of the isolator in this study in each direction is very low but does not reduce the load-carrying capacity of the structure. By changing the structure and material parameters (which is very simple in a purely passive manner), we can completely adjust both the dynamic and static stiffness of the mechanism. The last series of numerical simulation results on displacement and a statics response in random excitation is carried out to show the effectiveness of the proposed 6-DOF passive vibration isolator, as well as the influence of structural parameters on vibration attenuation performance. The simulation results with the different exciting are shown to demonstrate the efficiency of the 6-DOF passive vibration isolators. Considering its simulation results A proposed new 6-DOF isolator will be applied in various engineering practices with multi-degree of freedom vibration isolation such as for precise optical payloads.
{"title":"Kinematics Design and Statics Analysis of Novel 6-DOF Passive Vibration Isolator with S-shaped Legs Based on Stewart Platform","authors":"P. Ngoc, Nguyen Luong Thien","doi":"10.25046/aj080410","DOIUrl":"https://doi.org/10.25046/aj080410","url":null,"abstract":"Optical payloads are widely used in many fields, such as aerospace, drones, autonomous vehicles, or other highly precise instrumentation. Vibration is one of the causes that greatly affect the quality of data of highly precise optical payloads. Recently, many researcher focuses on isolating the vibration for the precise equipment, those study just only mention the overcoming of vibration in one or two directions, but in reality, an object will exist vibration in six directions in space. Therefore, it is necessary to find a new mechanism that can isolate vibration in six axes in space. The parallel mechanism is considered a viable system because of its strengths in accuracy, rigidity, and stability. In this research, the author proposes a novel 6-DOF passive vibration isolator based on the Steward platform with S-shaped legs. We have developed a 6-DOF passive vibration isolator using the S-shaped non-linear stiffness and damping characteristics. In this study, the model parameters of a vibration isolator device with legs using an S-shaped will be proposed. Based on geometrical parameters and vibration sources and some loads assuming the structure's durability problem will be calculated and evaluated the efficiency of the isolator at different frequencies. With the specially designed S-shaped it can be deformity like a spring, and with the change of structural and material parameters, we can adjust the system's stiffness and damping capacity. Due to the high static stiffness and low dynamic stiffness of each leg, and thus it is designable to isolate very well vibration isolation performance in all six directions. This research is organized as firstly the kinematics and 3D model are introduced. Secondly, the stiffness matrix of the novel 6-DOF passive vibration isolators is presented. Statics analysis of the 6-DOF passive vibration isolators revealed that the S-shaped structure provides sufficient load-carrying capacity and isolation due to its very good static nonlinear stiffness. The dynamic stiffness of the isolator in this study in each direction is very low but does not reduce the load-carrying capacity of the structure. By changing the structure and material parameters (which is very simple in a purely passive manner), we can completely adjust both the dynamic and static stiffness of the mechanism. The last series of numerical simulation results on displacement and a statics response in random excitation is carried out to show the effectiveness of the proposed 6-DOF passive vibration isolator, as well as the influence of structural parameters on vibration attenuation performance. The simulation results with the different exciting are shown to demonstrate the efficiency of the 6-DOF passive vibration isolators. Considering its simulation results A proposed new 6-DOF isolator will be applied in various engineering practices with multi-degree of freedom vibration isolation such as for precise optical payloads.","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83004879","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}
A. A. Jhumka, R. King, C. Ramasawmy, A. Khoodaruth
{"title":"Proportional Derivative and Proportional Integral Derivative Controllers for Frequency Support of a Wind Turbine Generator in a Diesel Generation Mix","authors":"A. A. Jhumka, R. King, C. Ramasawmy, A. Khoodaruth","doi":"10.25046/aj080407","DOIUrl":"https://doi.org/10.25046/aj080407","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79071254","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}
{"title":"MRI Semantic Segmentation based on Optimize V-net with 2D Attention","authors":"Zobeda Hatif Naji Al-azzwi, Alexey Nazarov","doi":"10.25046/aj080409","DOIUrl":"https://doi.org/10.25046/aj080409","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"190 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75507062","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}
Abdelmadjid Allaoui, Mohamed Nacer Tandjoui, C. Benachaiba
{"title":"Fuzzy MPPT for PV System Based on Custom Defuzzification","authors":"Abdelmadjid Allaoui, Mohamed Nacer Tandjoui, C. Benachaiba","doi":"10.25046/aj080405","DOIUrl":"https://doi.org/10.25046/aj080405","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89253685","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}
Younes Fakhradine El Bahi, L. Ezzine, Zineb Aman, Imane Moussaoui, M. Rahmoune, Haj El Moussami
{"title":"Distribution Management Problem: Heuristic Solution for Vehicle Routing Problem with Time Windows (VRPTW) in the Moroccan Petroleum Sector","authors":"Younes Fakhradine El Bahi, L. Ezzine, Zineb Aman, Imane Moussaoui, M. Rahmoune, Haj El Moussami","doi":"10.25046/aj080408","DOIUrl":"https://doi.org/10.25046/aj080408","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73947098","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}
Faraz Talebpour, Saeed Mozaffari, M. Saif, S. Alirezaee
{"title":"Localization of Impulsive Sound Source in ShallowWaters using a Selective Modal Analysis Algorithm","authors":"Faraz Talebpour, Saeed Mozaffari, M. Saif, S. Alirezaee","doi":"10.25046/aj080403","DOIUrl":"https://doi.org/10.25046/aj080403","url":null,"abstract":"","PeriodicalId":7674,"journal":{"name":"Advances in Science, Technology and Engineering Systems Journal","volume":"93 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74747646","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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