Pub Date : 2023-12-18DOI: 10.5540/03.2023.010.01.0010
D. Nascimento, Allbens P. F. Atman
baseado
根据
{"title":"A Influência de Jagged durante a angiogênese","authors":"D. Nascimento, Allbens P. F. Atman","doi":"10.5540/03.2023.010.01.0010","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0010","url":null,"abstract":"baseado","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":"7 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139173592","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0041
Arlane Manoel, S. Vieira, Kenio Alexsom de Almeida, Raibel de, Jesus Arias Cantillo
Resumo
简历
{"title":"Dinâmica da função zeta de Artin-Mazur associada à inversões geométricas","authors":"Arlane Manoel, S. Vieira, Kenio Alexsom de Almeida, Raibel de, Jesus Arias Cantillo","doi":"10.5540/03.2023.010.01.0041","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0041","url":null,"abstract":"Resumo","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":"24 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174222","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0024
Hengameh R. Dehkordi
. We utilize Randers geometry to model the propagation of fire waves, deriving the equations for paths surrounding power transmission lines in a flat terrain during a wildfire outbreak with varying wind patterns. These paths, known as strategic paths, can play a critical role in managing firefighting strategies. By identifying these paths, we can allocate firefighters and resources to specific locations instead of trying to cover a large area. This approach enables us to predict the path of the fire toward the transmission lines, thus reducing the time and cost of firefighting operations. We demonstrate the effectiveness of our approach using MATLAB by simulating two hypothetical wildfire scenarios.
{"title":"Applications of Randers metric to track the paths through which the fire surrounds the power transmission lines","authors":"Hengameh R. Dehkordi","doi":"10.5540/03.2023.010.01.0024","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0024","url":null,"abstract":". We utilize Randers geometry to model the propagation of fire waves, deriving the equations for paths surrounding power transmission lines in a flat terrain during a wildfire outbreak with varying wind patterns. These paths, known as strategic paths, can play a critical role in managing firefighting strategies. By identifying these paths, we can allocate firefighters and resources to specific locations instead of trying to cover a large area. This approach enables us to predict the path of the fire toward the transmission lines, thus reducing the time and cost of firefighting operations. We demonstrate the effectiveness of our approach using MATLAB by simulating two hypothetical wildfire scenarios.","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":"194 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174521","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0054
{"title":"Flexágonos: propostas didáticas para o ensino de Geometria","authors":"","doi":"10.5540/03.2023.010.01.0054","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0054","url":null,"abstract":"","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":"46 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174775","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0071
A. Fonseca, J. Frederico, C. A. Meyer, Dayse H. Pastore, Palavras-chave . Modelo Matemático, Doença de Biomatemática, Parkinson
{"title":"Modelagem Matemática: a evolução e o tratamento da Doença de Parkinson","authors":"A. Fonseca, J. Frederico, C. A. Meyer, Dayse H. Pastore, Palavras-chave . Modelo Matemático, Doença de Biomatemática, Parkinson","doi":"10.5540/03.2023.010.01.0071","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0071","url":null,"abstract":"","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":"147 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175031","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0081
Nicole Cristina, Cassimiro de Oliveira, A. R. L. Oliveira
Resumo . A radioterapia é uma modalidade de tratamento do câncer que consiste no uso de uma fonte de radiação ionizante que destrói o tumor. Em termos de tratamentos mais modernos, a radioterapia com intensidade modulada (IMRT) possibilita a variação de intensidade da fluência da radiação, alcançando uma distribuição de dose com conformidade superior, viabilizando ainda irradiação concomitante de diferentes alvos e doses. Diante disto, o problema de distribuição de doses no planejamento ótimo da IMRT traduz-se em otimizar a dosagem total de radiação aplicada ao paciente, sendo modelado utilizando técnicas de Programação Matemática. Para tal objetivo, utiliza-se a Otimização Fuzzy , devido às incertezas de dosagem, com a abordagem de funções sur-presas, para aplicar o Método de Pontos Interiores Primal-Dual, a fim de determinar um plano de tratamento viável
摘要 .放疗是一种癌症治疗方法，包括使用电离辐射源摧毁肿瘤。在更现代化的治疗中，调强放射治疗（IMRT）可以改变辐射通量的强度，使剂量分布具有更好的一致性，同时还能同时照射不同的靶点和剂量。有鉴于此，IMRT 最佳规划中的剂量分布问题涉及优化患者的总辐射剂量，并使用数学编程技术进行建模。为此，由于剂量的不确定性，我们采用了模糊优化法（Fuzzy Optimisation）和惊喜函数法（Quick Function），应用原始-双重内部点法（Primal-Dual Interior Point Method）来确定可行的治疗方案。
{"title":"Otimização Fuzzy no Planejamento da IMRT","authors":"Nicole Cristina, Cassimiro de Oliveira, A. R. L. Oliveira","doi":"10.5540/03.2023.010.01.0081","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0081","url":null,"abstract":"Resumo . A radioterapia é uma modalidade de tratamento do câncer que consiste no uso de uma fonte de radiação ionizante que destrói o tumor. Em termos de tratamentos mais modernos, a radioterapia com intensidade modulada (IMRT) possibilita a variação de intensidade da fluência da radiação, alcançando uma distribuição de dose com conformidade superior, viabilizando ainda irradiação concomitante de diferentes alvos e doses. Diante disto, o problema de distribuição de doses no planejamento ótimo da IMRT traduz-se em otimizar a dosagem total de radiação aplicada ao paciente, sendo modelado utilizando técnicas de Programação Matemática. Para tal objetivo, utiliza-se a Otimização Fuzzy , devido às incertezas de dosagem, com a abordagem de funções sur-presas, para aplicar o Método de Pontos Interiores Primal-Dual, a fim de determinar um plano de tratamento viável","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963672","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0075
{"title":"O GeoGebra e o floco de neve no ensino das transformações geométricas","authors":"","doi":"10.5540/03.2023.010.01.0075","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0075","url":null,"abstract":"","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":" 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138964483","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0006
H. Goicoechea, R. Lima, R. Sampaio, F. Buezas
. A comparison of the dynamics obtained using two different models of a drill-string is made. A structure that is 1200 m long is analysed. In the first model, a two degrees-of-freedom (DOF) approach is used, where 1-axial DOF and 1-torsional DOF are considered. This model has been widely used in the literature. The second model maintains the 1-DOF axial formulation and employs a wave-equation for the torsional part. In both cases, the structural dynamics are coupled with the dynamics of the cutting through the depth-of-cut used in the bit-rock interaction relation. To calculate the previous depth, an advection equation is solved along with the equations of motion. One application case is simulated. The results show that the dynamics differ considerably. This suggests that the second model, with a continuous torsional shaft, could be capturing aspects of the dynamics that are neglected in the 2-DOF approach.
{"title":"A brief discussion on the choice of a model to simulate drill-string dynamics","authors":"H. Goicoechea, R. Lima, R. Sampaio, F. Buezas","doi":"10.5540/03.2023.010.01.0006","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0006","url":null,"abstract":". A comparison of the dynamics obtained using two different models of a drill-string is made. A structure that is 1200 m long is analysed. In the first model, a two degrees-of-freedom (DOF) approach is used, where 1-axial DOF and 1-torsional DOF are considered. This model has been widely used in the literature. The second model maintains the 1-DOF axial formulation and employs a wave-equation for the torsional part. In both cases, the structural dynamics are coupled with the dynamics of the cutting through the depth-of-cut used in the bit-rock interaction relation. To calculate the previous depth, an advection equation is solved along with the equations of motion. One application case is simulated. The results show that the dynamics differ considerably. This suggests that the second model, with a continuous torsional shaft, could be capturing aspects of the dynamics that are neglected in the 2-DOF approach.","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":" 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138964495","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0056
Mina Shahidi, E. Esmi, L. C. Barros
. In this paper, we propose a new definition of the fractional derivative and fractional integral for fuzzy functions on time scales. The introduced derivative is a natural extension of the Hukuhara derivative. Furthermore, some properties of the introduced derivative and integral are studied. Some examples are provided to illustrate the obtained results.
{"title":"Fractional Differentiation and Integration for Fuzzy Functions on Time Scales","authors":"Mina Shahidi, E. Esmi, L. C. Barros","doi":"10.5540/03.2023.010.01.0056","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0056","url":null,"abstract":". In this paper, we propose a new definition of the fractional derivative and fractional integral for fuzzy functions on time scales. The introduced derivative is a natural extension of the Hukuhara derivative. Furthermore, some properties of the introduced derivative and integral are studied. Some examples are provided to illustrate the obtained results.","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":"99 s395","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138964988","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 : 2023-12-18DOI: 10.5540/03.2023.010.01.0018
Franciane Fracalossi Rocha, Amanda H. L. Matos, Gabriel Marcos Magalhães, Hélio Ribeiro Neto, Roberto Lange
. This work presents the formulation, verification, and application of an OpenFOAM-based multiphase solver for physical systems with moving and stationary phases. The latter is used to model porous media, allowing for the simulation of multiphase flow processes applied to many areas of science and engineering. The model considers an implicit coupled solution of the phase-fraction equations for an arbitrary number of phases in the system, providing better approximations when compared to the standard segregated solution. We present verification tests simulated in scenarios with different numbers of moving phases, along with an application case.
{"title":"An OpenFOAM-based multiphase solver for physical systems with stationary and moving phases using a coupled solution for phase fractions","authors":"Franciane Fracalossi Rocha, Amanda H. L. Matos, Gabriel Marcos Magalhães, Hélio Ribeiro Neto, Roberto Lange","doi":"10.5540/03.2023.010.01.0018","DOIUrl":"https://doi.org/10.5540/03.2023.010.01.0018","url":null,"abstract":". This work presents the formulation, verification, and application of an OpenFOAM-based multiphase solver for physical systems with moving and stationary phases. The latter is used to model porous media, allowing for the simulation of multiphase flow processes applied to many areas of science and engineering. The model considers an implicit coupled solution of the phase-fraction equations for an arbitrary number of phases in the system, providing better approximations when compared to the standard segregated solution. We present verification tests simulated in scenarios with different numbers of moving phases, along with an application case.","PeriodicalId":274912,"journal":{"name":"Proceeding Series of the Brazilian Society of Computational and Applied Mathematics","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138994998","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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