Pub Date : 2024-03-31DOI: 10.55579/jaec.202481.447
Mayaka N. Moses, Michael Juma Saulo
The concept of mcirogrids has gained popularity in the distribution of electricity to the final consumer. Microgrids integrating energy storage devices, combined heat and power system (CHP) and renewable energy generation are especially becoming attractive to industrial consumers –such as industrial parks – due to environmental and economic benefits. However, the intermittence of renewable energy sources imply that storage is essential for economic operation. However, technological limitations of storage solutions for the grid imply that we need to consider supplying the power into the main grid. However, grids are designed for unidirectional operation, which implies that mcirogrids cannot receive and send power to the grid. This research paper, shows the potential for SSTs to support power-sharing among islanded microgrids. The microgrids are interconnected through the low-voltage medium, which implies that they can send and receive power from the main grid. Simulations through MATLAB demonstrate that the SST can support the integration of renewable energy sources at the low-voltage DC bus. Furthermore, advanced controls – particularly, particle swarm optimization – can be implemented to mitigate harmonics (only 1.17% in the presence of non-linear loads and 0.36% in the presence of resistive loads alone) and voltage imbalance (the voltage unbalance factor is less than 1%) at the microgrid level. Microgrids generating excess power can also share with neighboring microgrids in the absence of the main grid (for instance, during a fault). This research is instrumental in reconfiguring conventional grids to meet the needs of modern power system requirements.
{"title":"Modelling of Solid-State Transformer to Support the Interconnection of Microgrids for Power Sharing and Harmonic Compensation During Islanded Operation","authors":"Mayaka N. Moses, Michael Juma Saulo","doi":"10.55579/jaec.202481.447","DOIUrl":"https://doi.org/10.55579/jaec.202481.447","url":null,"abstract":"The concept of mcirogrids has gained popularity in the distribution of electricity to the final consumer. Microgrids integrating energy storage devices, combined heat and power system (CHP) and renewable energy generation are especially becoming attractive to industrial consumers –such as industrial parks – due to environmental and economic benefits. However, the intermittence of renewable energy sources imply that storage is essential for economic operation. However, technological limitations of storage solutions for the grid imply that we need to consider supplying the power into the main grid. However, grids are designed for unidirectional operation, which implies that mcirogrids cannot receive and send power to the grid. This research paper, shows the potential for SSTs to support power-sharing among islanded microgrids. The microgrids are interconnected through the low-voltage medium, which implies that they can send and receive power from the main grid. Simulations through MATLAB demonstrate that the SST can support the integration of renewable energy sources at the low-voltage DC bus. Furthermore, advanced controls – particularly, particle swarm optimization – can be implemented to mitigate harmonics (only 1.17% in the presence of non-linear loads and 0.36% in the presence of resistive loads alone) and voltage imbalance (the voltage unbalance factor is less than 1%) at the microgrid level. Microgrids generating excess power can also share with neighboring microgrids in the absence of the main grid (for instance, during a fault). This research is instrumental in reconfiguring conventional grids to meet the needs of modern power system requirements.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140361187","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 : 2024-03-31DOI: 10.55579/jaec.202481.440
Ly Huu Pham, Tai Thanh Phan, Van Thanh Ngoc Nguyen, Khoa Dang Tran Phan, Phung Hai Nguyen
This article studies the influence of distributed generation (DG), specifically the influence of photovoltaic (PV) in the distribution system. The particle swarm optimization algorithm (PSO) will be applied to determine the best capacity and location of PV on a test system of EEE 33 nodes so that active power loss is minimized, and the voltage profile is improved. The performance of the applied method is evaluated by comparing its results to those from some previous methods, including the Genetic Algorithm (GA), the Bacterial Foraging Optimization Algorithm (BFOA), and the Backtracking Search Optimization Algorithm (BSOA). As a result, it proved that the proposed method is better than others in terms of processing time, voltage profile, and minimization system capacity loss. In addition, the main contribution of the study is to give detailed solutions for operators in installing how many PVs in the power system can satisfy economic and technical aspects.
{"title":"Optimizing the Efficiency of Photovoltaic Distributed Generation in the Distribution System","authors":"Ly Huu Pham, Tai Thanh Phan, Van Thanh Ngoc Nguyen, Khoa Dang Tran Phan, Phung Hai Nguyen","doi":"10.55579/jaec.202481.440","DOIUrl":"https://doi.org/10.55579/jaec.202481.440","url":null,"abstract":"This article studies the influence of distributed generation (DG), specifically the influence of photovoltaic (PV) in the distribution system. The particle swarm optimization algorithm (PSO) will be applied to determine the best capacity and location of PV on a test system of EEE 33 nodes so that active power loss is minimized, and the voltage profile is improved. The performance of the applied method is evaluated by comparing its results to those from some previous methods, including the Genetic Algorithm (GA), the Bacterial Foraging Optimization Algorithm (BFOA), and the Backtracking Search Optimization Algorithm (BSOA). As a result, it proved that the proposed method is better than others in terms of processing time, voltage profile, and minimization system capacity loss. In addition, the main contribution of the study is to give detailed solutions for operators in installing how many PVs in the power system can satisfy economic and technical aspects. ","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":"39 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140357941","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 : 2024-03-31DOI: 10.55579/jaec.202481.438
Vu Uyen Phuong Nguyen, Hanh Hoang Minh, Trung Thang Nguyen
This study presents the application of a new meta-heuristic algorithm called One-to-One optimization algorithm (OOBO) for solving the renewable-integrated economic load dispatch problem (RI-ELD) with consideration of both wind and solar power plants. The whole study focuses on minimizing the overall expenses of fuel (OEF) for all thermal electric power plants (TEPPs). The considered power system consists of twenty TEPPs with different working limits. OOBO is applied to solve the given problem in three cases of load demand level, including 2500, 2600, and 2700 MW. The results achieved by OOBO in the three cases are compared with other meta-heuristic algorithms called Coati optimization algorithm (COA) in the four aspects, such as Best OEF (Bst.OEF), Average OEF (Aver.OEF), Maximum OEF (Max.OEF). OOBO not only outperforms COA in all comparison aspects but also provides faster convergence speed to the optimal values of OEF at all three cases of load demand. Moreover, OOBO shows its surprising stability over COA regardless of the increase of load demand in Case 2 and Case 3. By observing these results, OOBO deserved the highly effective search tool for solving the large-scale and highly complex RI-ELD problem.
{"title":"Optimal renewable-integrated economic load dispatch for a large-scale power system using One-to-One Optimization Algorithm","authors":"Vu Uyen Phuong Nguyen, Hanh Hoang Minh, Trung Thang Nguyen","doi":"10.55579/jaec.202481.438","DOIUrl":"https://doi.org/10.55579/jaec.202481.438","url":null,"abstract":"This study presents the application of a new meta-heuristic algorithm called One-to-One optimization algorithm (OOBO) for solving the renewable-integrated economic load dispatch problem (RI-ELD) with consideration of both wind and solar power plants. The whole study focuses on minimizing the overall expenses of fuel (OEF) for all thermal electric power plants (TEPPs). The considered power system consists of twenty TEPPs with different working limits. OOBO is applied to solve the given problem in three cases of load demand level, including 2500, 2600, and 2700 MW. The results achieved by OOBO in the three cases are compared with other meta-heuristic algorithms called Coati optimization algorithm (COA) in the four aspects, such as Best OEF (Bst.OEF), Average OEF (Aver.OEF), Maximum OEF (Max.OEF). OOBO not only outperforms COA in all comparison aspects but also provides faster convergence speed to the optimal values of OEF at all three cases of load demand. Moreover, OOBO shows its surprising stability over COA regardless of the increase of load demand in Case 2 and Case 3. By observing these results, OOBO deserved the highly effective search tool for solving the large-scale and highly complex RI-ELD problem. ","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":"7 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140359621","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 : 2024-03-31DOI: 10.55579/jaec.202481.445
Tri-Vien Vu, Anh-Minh Duc Tran
In this study, we present a systematically designed Sliding Mode Speed Controller (SMSC) tailored for motors utilized in a Differential Drive Wheel Mobile Robot (DDWMR). Our analysis delves into the critical parameters of the SMSC, including convergence and reaching rates, alongside simulation configurations such as time step. We concurrently consider metrics like rising time, steady-state error, and control ripple factors to optimize performance. Through comprehensive evaluation across various case studies, we demonstrate the efficacy of the fine-tuned SMSC in enhancing the overall performance of the DDWMR. Our simulation results underscore the significance of meticulous parameter tuning, particularly emphasizing the role of time step settings. We find that a smaller time step mitigates chattering phenomena and improves performance, albeit at the cost of increased computational demands and potentially heightened hardware requirements.
{"title":"An Analysis of Sliding Mode Speed Controller for a Differential Drive Wheel Mobile Robot","authors":"Tri-Vien Vu, Anh-Minh Duc Tran","doi":"10.55579/jaec.202481.445","DOIUrl":"https://doi.org/10.55579/jaec.202481.445","url":null,"abstract":"In this study, we present a systematically designed Sliding Mode Speed Controller (SMSC) tailored for motors utilized in a Differential Drive Wheel Mobile Robot (DDWMR). Our analysis delves into the critical parameters of the SMSC, including convergence and reaching rates, alongside simulation configurations such as time step. We concurrently consider metrics like rising time, steady-state error, and control ripple factors to optimize performance. Through comprehensive evaluation across various case studies, we demonstrate the efficacy of the fine-tuned SMSC in enhancing the overall performance of the DDWMR. Our simulation results underscore the significance of meticulous parameter tuning, particularly emphasizing the role of time step settings. We find that a smaller time step mitigates chattering phenomena and improves performance, albeit at the cost of increased computational demands and potentially heightened hardware requirements.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140360836","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 : 2024-03-31DOI: 10.55579/jaec.202481.437
Hrittik Raj Barua, I. A. Chowdhury
This paper presents the design and simulation of an efficient multiple input multiple output (MIMO) antenna array for 5G millimeter-wave (mm-wave) mobile applications. With a dielectric constant of 2.2 and a loss tangent of 0.0009, the substrate employed is a Rogers RT5880 that is 0.254 mm thick. The 37 GHz frequency spectrum, reserved for millimeter-wave mobile applications for 5G, is covered by the proposed MIMO antenna arrays. The single antenna element has a gain of 6.44 dBi, which is increased to 7.89 dBi with a two-element array configuration and 10.88 dBi with a four-element array configuration. The proposed MIMO antenna array performance metrics—including reflection coefficient, VSWR, radiation efficiency, and gain—are seen and discovered to be below the accepted threshold. In the desired operating frequency band, it is noticed that more than 85% of the proposed MIMO antenna array's radiation efficiency is achieved. According to simulation findings, the proposed design may be potentially feasible for mobile applications using millimeter waves in the 5G network.
{"title":"Design and Simulation of a High Performance 5G mm-Wave MIMO Antenna Array for Mobile Applications","authors":"Hrittik Raj Barua, I. A. Chowdhury","doi":"10.55579/jaec.202481.437","DOIUrl":"https://doi.org/10.55579/jaec.202481.437","url":null,"abstract":"This paper presents the design and simulation of an efficient multiple input multiple output (MIMO) antenna array for 5G millimeter-wave (mm-wave) mobile applications. With a dielectric constant of 2.2 and a loss tangent of 0.0009, the substrate employed is a Rogers RT5880 that is 0.254 mm thick. The 37 GHz frequency spectrum, reserved for millimeter-wave mobile applications for 5G, is covered by the proposed MIMO antenna arrays. The single antenna element has a gain of 6.44 dBi, which is increased to 7.89 dBi with a two-element array configuration and 10.88 dBi with a four-element array configuration. The proposed MIMO antenna array performance metrics—including reflection coefficient, VSWR, radiation efficiency, and gain—are seen and discovered to be below the accepted threshold. In the desired operating frequency band, it is noticed that more than 85% of the proposed MIMO antenna array's radiation efficiency is achieved. According to simulation findings, the proposed design may be potentially feasible for mobile applications using millimeter waves in the 5G network.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":"22 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140360574","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 : 2024-03-31DOI: 10.55579/jaec.202481.451
Sang Dang Ho, N. Loan, Hsiao Yi Lee, N. D. Quoc Anh
The distinctive wide-band blue illumination absorption and red strait-line discharge of the phosphor K2SiF6:Mn4+ (KMnSF) make it an attractive material for manufacturing warm white light-emitting diodes (WLED). Nevertheless, using the highly corrosive raw ingredient HF to produce commercial KMnSF red phosphor has negative effects on the environment and people. In this study, microfluidic technology was used to successfully manufacture the KMnSF without the need for HF compound while resulting in a phosphor product with homogenous granule shape and size. The luminescence capabilities of the KMnSF samples were then thoroughly examined and characterized. Eventually, we made WLED packages comprising of blue LED chips, yellow phosphor Y3Al5O12:Ce3+ (YGA:Ce), red phosphor KMnSF, and SiO2 scattering particle. Via varying the SiO2 concentration during the simulation process, the prepared WLED’s optical performances are obtained. The scattering properties of the phosphor layer as well as the lighting transmission and distribution were simulated with the utilization of both LightTools software and Monte Carlo theory. According to the outcomes, the microfluidic-synthesized K2SiF6:Mn4+ proves to be appropriate for WLED apparatuses. Besides, the proposed phosphor compound with SiO2 scattering particles showed the improvement in luminous flux and angular uniformity of the WLED.
{"title":"STUDY OF K2SiF6:Mn4+@SiO2 PHOSPHOR FOR WHITE LEDS WITH HIGH ANGULAR COLOR UNIFORMITY","authors":"Sang Dang Ho, N. Loan, Hsiao Yi Lee, N. D. Quoc Anh","doi":"10.55579/jaec.202481.451","DOIUrl":"https://doi.org/10.55579/jaec.202481.451","url":null,"abstract":"The distinctive wide-band blue illumination absorption and red strait-line discharge of the phosphor K2SiF6:Mn4+ (KMnSF) make it an attractive material for manufacturing warm white light-emitting diodes (WLED). Nevertheless, using the highly corrosive raw ingredient HF to produce commercial KMnSF red phosphor has negative effects on the environment and people. In this study, microfluidic technology was used to successfully manufacture the KMnSF without the need for HF compound while resulting in a phosphor product with homogenous granule shape and size. The luminescence capabilities of the KMnSF samples were then thoroughly examined and characterized. Eventually, we made WLED packages comprising of blue LED chips, yellow phosphor Y3Al5O12:Ce3+ (YGA:Ce), red phosphor KMnSF, and SiO2 scattering particle. Via varying the SiO2 concentration during the simulation process, the prepared WLED’s optical performances are obtained. The scattering properties of the phosphor layer as well as the lighting transmission and distribution were simulated with the utilization of both LightTools software and Monte Carlo theory. According to the outcomes, the microfluidic-synthesized K2SiF6:Mn4+ proves to be appropriate for WLED apparatuses. Besides, the proposed phosphor compound with SiO2 scattering particles showed the improvement in luminous flux and angular uniformity of the WLED.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":"19 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140361091","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 : 2023-12-30DOI: 10.55579/jaec.202374.441
P. Phung-Van, P. T. Hùng, H. Nguyen-Gia, H. Nguyen-Xuan
This paper explores a free vibration analysis of functionally graded triply periodic minimal surface plates using a first order shear deformation theory in conjunction with moving Kriging meshfree method. The FG-TPMS plates are modeled the same as porous structures with three different patterns (Primitive, Gyroid, and wrapped package-graph) and six different volume distributions for each pattern. Employing a fitting method based on a two-phase piece-wise function, the mechanical properties of the FGTPMS plates are determined. The governing equations for the FG-TPMS plates are established using the virtual work principle and subsequently solved using the moving Kriging meshfree method. The study encompasses FG-TPMS square and circular plate, examining the natural frequency of the FG-TPMS plates with various length-to-thickness ratios, TPMS types, volume distributions, and boundary conditions.
{"title":"Free vibration analysis of functionally graded triply periodic minimal surface plates using a first order shear deformation theory and meshfree method","authors":"P. Phung-Van, P. T. Hùng, H. Nguyen-Gia, H. Nguyen-Xuan","doi":"10.55579/jaec.202374.441","DOIUrl":"https://doi.org/10.55579/jaec.202374.441","url":null,"abstract":"This paper explores a free vibration analysis of functionally graded triply periodic minimal surface plates using a first order shear deformation theory in conjunction with moving Kriging meshfree method. The FG-TPMS plates are modeled the same as porous structures with three different patterns (Primitive, Gyroid, and wrapped package-graph) and six different volume distributions for each pattern. Employing a fitting method based on a two-phase piece-wise function, the mechanical properties of the FGTPMS plates are determined. The governing equations for the FG-TPMS plates are established using the virtual work principle and subsequently solved using the moving Kriging meshfree method. The study encompasses FG-TPMS square and circular plate, examining the natural frequency of the FG-TPMS plates with various length-to-thickness ratios, TPMS types, volume distributions, and boundary conditions.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":" 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139141577","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 : 2023-12-30DOI: 10.55579/jaec.202374.429
Phuoc Nguyen Van, Trang Nguyen-Cong
In this paper, a novel second order sliding mode control approach is extended toa class of complex interconnected systems with mismatched interconnections and unknown perturbations. The key contribution of this paper is to cancel two common restrictions clogging the application of the variable structure control to complex interconnected systems: 1) all of state variables must be accessible; 2) the control input is affected by chattering problems. First, a novel reduced-order sliding mode estimator (ROSME) is proposed to estimate the unmeasurable variables. Second, based on Moore-Penrose inverse technique and ROSME tool, a new decentralized chattering-free second order robustness sliding mode controller (CSORSMC) is developed to force the system states to stay in a sliding surface from the initial period instance and attenuate the chattering phenomenon in the control signal. Besides, a novel appropriate linear matrix inequality (LMI) requirement is proved such that the plant in sliding mode is asymptotically stable. Lastly, a mathematical model including two subsystems is simulated which confirms the usefulness and advantages of proposed technique.
{"title":"Chattering-Free Second Order Robustness Sliding Mode Controller for Complex Interconnected Systems: A Moore-Penrose Inverse Technique","authors":"Phuoc Nguyen Van, Trang Nguyen-Cong","doi":"10.55579/jaec.202374.429","DOIUrl":"https://doi.org/10.55579/jaec.202374.429","url":null,"abstract":"In this paper, a novel second order sliding mode control approach is extended toa class of complex interconnected systems with mismatched interconnections and unknown perturbations. The key contribution of this paper is to cancel two common restrictions clogging the application of the variable structure control to complex interconnected systems: 1) all of state variables must be accessible; 2) the control input is affected by chattering problems. First, a novel reduced-order sliding mode estimator (ROSME) is proposed to estimate the unmeasurable variables. Second, based on Moore-Penrose inverse technique and ROSME tool, a new decentralized chattering-free second order robustness sliding mode controller (CSORSMC) is developed to force the system states to stay in a sliding surface from the initial period instance and attenuate the chattering phenomenon in the control signal. Besides, a novel appropriate linear matrix inequality (LMI) requirement is proved such that the plant in sliding mode is asymptotically stable. Lastly, a mathematical model including two subsystems is simulated which confirms the usefulness and advantages of proposed technique.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":" 64","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139137951","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 : 2023-12-30DOI: 10.55579/jaec.202374.416
Jigar M. Patel, Rahul D. Mehta
In this paper, the different research papers are studied and comparatively analyzed to carry out the simulation based survey of various proposals for improvement to design Metarsurface based Perfect Absorber for GHz and THz frequency band for RF Energy Harvesting applications. Using a structure that can effectively absorb the most radiation is one of the biggest obstacles in reducing the impact of EM wave radiation. A perfect absorber may be created using variety of structures and materials with various specifications. Various structures are designed and simulated by different authors in variety of simulation softwares using useful parameters. Three distinct structures have been created, two of which were created using CST Microwave Studio and the third using HFFS for comparative study. A perfect absorber can be constructed for GHz and THz for dual band and multiband since the operating frequency range and band are not limited.
{"title":"Simulation based Comparative Review on a Metasurface based Perfect Absorber","authors":"Jigar M. Patel, Rahul D. Mehta","doi":"10.55579/jaec.202374.416","DOIUrl":"https://doi.org/10.55579/jaec.202374.416","url":null,"abstract":"In this paper, the different research papers are studied and comparatively analyzed to carry out the simulation based survey of various proposals for improvement to design Metarsurface based Perfect Absorber for GHz and THz frequency band for RF Energy Harvesting applications. Using a structure that can effectively absorb the most radiation is one of the biggest obstacles in reducing the impact of EM wave radiation. A perfect absorber may be created using variety of structures and materials with various specifications. Various structures are designed and simulated by different authors in variety of simulation softwares using useful parameters. Three distinct structures have been created, two of which were created using CST Microwave Studio and the third using HFFS for comparative study. A perfect absorber can be constructed for GHz and THz for dual band and multiband since the operating frequency range and band are not limited.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":" 33","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139139818","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 : 2023-12-30DOI: 10.55579/jaec.202374.431
N. Vo, H. Phung, Khanh Linh Chung, Thien Y Vu
Immune checkpoint proteins, including CTLA-4 and PD-1, have emerged as promising targets for cancer immunotherapy due to their vital role in immune regulation. In this comprehensive study, we conducted a thorough analysis of antibody-protein interactions by employing structural analysis, mutational studies, and antibody-antigen docking simulations. Our findings revealed that antibodies 1 and 2 exhibited strong binding affinities towards CTLA-4 and PD-1 proteins, respectively. Further analysis through alanine scanning identified specific residues, namely Tyr91 on antibody 1, along with Asn31 and Asp96 on antibody 2, as potential mutation sites. Introducing these mutations resulted in the generation of two novel antibodies, 1a, 2a and 2b, which displayed enhanced binding affinity towards their respective target proteins. With their improved binding capabilities, these novel antibodies hold tremendous promise for enhancing the effectiveness of antibody-based therapies designed to target immune checkpoints in cancer treatment. The ultimate objective is to significantly improve the health outcomes of patients by leveraging the potential of these novel antibodies.
{"title":"Design And Evaluating The Efficacy Of Novel Antibodies Enhancing Binding On CTLA-4 And PD-1 Immune Checkpoints","authors":"N. Vo, H. Phung, Khanh Linh Chung, Thien Y Vu","doi":"10.55579/jaec.202374.431","DOIUrl":"https://doi.org/10.55579/jaec.202374.431","url":null,"abstract":"Immune checkpoint proteins, including CTLA-4 and PD-1, have emerged as promising targets for cancer immunotherapy due to their vital role in immune regulation. In this comprehensive study, we conducted a thorough analysis of antibody-protein interactions by employing structural analysis, mutational studies, and antibody-antigen docking simulations. Our findings revealed that antibodies 1 and 2 exhibited strong binding affinities towards CTLA-4 and PD-1 proteins, respectively. Further analysis through alanine scanning identified specific residues, namely Tyr91 on antibody 1, along with Asn31 and Asp96 on antibody 2, as potential mutation sites. Introducing these mutations resulted in the generation of two novel antibodies, 1a, 2a and 2b, which displayed enhanced binding affinity towards their respective target proteins. With their improved binding capabilities, these novel antibodies hold tremendous promise for enhancing the effectiveness of antibody-based therapies designed to target immune checkpoints in cancer treatment. The ultimate objective is to significantly improve the health outcomes of patients by leveraging the potential of these novel antibodies.","PeriodicalId":33374,"journal":{"name":"Journal of Advanced Engineering and Computation","volume":" 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139140146","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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