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Papers by Aurelio de Noronha

Seven Editora eBooks, Aug 4, 2023

The present work aims to report the experience of the science fair entitled Agro &Physics held by... more The present work aims to report the experience of the science fair entitled Agro &Physics held by the professor, monitor and students of the General Physics class for the Agronomy Course of the University of the International Integration of Afro-Brazilian Lusophony (UNILAB) in the semester 2019.1. Science fairs are spaces for scientific initiation, in which students and teachers mount demonstrative exhibitions (DORNFELD, 2011).

Anais do(a) Anais do Congresso Brasileiro Interdisciplinar em Ciência e Tecnologia, 2022

Physical review research, Oct 26, 2020

Assessing the resilience of a road network is instrumental to improve existing infrastructures an... more Assessing the resilience of a road network is instrumental to improve existing infrastructures and design new ones. Here we apply the optimal path crack model (OPC) to investigate the mobility of road networks and propose a new proxy for resilience of urban mobility. In contrast to static approaches, the OPC accounts for the dynamics of rerouting as a response to traffic jams. Precisely, one simulates a sequence of failures (cracks) at the most vulnerable segments of the optimal origindestination paths that are capable to collapse the system. Our results with synthetic and real road networks reveal that their levels of disorder, fractions of unidirectional segments and spatial correlations can drastically affect the vulnerability to traffic congestion. By applying the OPC to downtown Boston and Manhattan, we found that Boston is significantly more vulnerable than Manhattan. This is compatible with the fact that Boston heads the list of American metropolitan areas with the highest average time waste in traffic. Moreover, our analysis discloses that the origin of this difference comes from the intrinsic spatial correlations of each road network. Finally, we argue that, due to their global influence, the most important cracks identified with OPC can be used to pinpoint potential small rerouting and structural changes in road networks that are capable to substantially improve urban mobility.

Anais do(a) Segunda Semana de Engenharias da UFVJM

Anais do(a) Anais do Congresso Brasileiro Interdisciplinar em Ciência e Tecnologia

Ciências exatas e da terra: Observação, formulação e previsão 2

Educação em foco: Tecnologias digitais e inovação em práticas de ensino, 2022

O programa de acompanhamento e orientação acadêmica (PULSAR), foi criado e regulamentado no ano d... more O programa de acompanhamento e orientação acadêmica (PULSAR), foi criado e regulamentado no ano de 2014, pela universidade da integração internacional da lusofonia afro-brasileira. De acordo com o manual do tutor, o programa PULSAR constitui-se em instrumento institucional permanente de acompanhamento e orientação acadêmica dos estudantes dos cursos de graduação na modalidade presencial, na forma de ações de tutoria e tem como objetivo promover a adaptação do estudante à Unilab mediante a apresentação e a difusão da missão e dos paradigmas estatutários e normativos que orientam a instituição. Este trabalho é fruto das experiências vividas durante a vigência do programa PULSAR, cuja as atividades foram aplicadas na turma do primeiro semestre do curso de licenciatura em física. Levando em conta essa nova realidade remota, as tarefas realizadas permitem com que os bolsistas ganhem aptidões para trabalhar com as ferramentas tecnológicas e consequentemente adquiram uma certa experiência,...

Fis_Cotidiano_NL2013.indd 14 23/05/17 11:25 7. O que é o albedo solar? Qual seu significado? 8. P... more Fis_Cotidiano_NL2013.indd 14 23/05/17 11:25 7. O que é o albedo solar? Qual seu significado? 8. Partindo do espectro de radiação solar, além da luz visível, quais os outros tipos de radiação contidos nele. 9. Partindo do espectro de radiação de uma temperatura de 300 K, além do infravermelho, quais outros tipos estão contidos? Referências

Revista Brasileira de Meteorologia, 2011

Este artigo apresenta um estudo de verificação das previsões de chuva de um sistema de previsão d... more Este artigo apresenta um estudo de verificação das previsões de chuva de um sistema de previsão do tempo por ensemble regional. O conjunto é composto por seis membros, dos quais quatro utilizam o modelo RAMS 6.0 e dois usam o WRF 3.1, inicializados com dados dos modelos globais do CPTEC ou GFS e diferentes parametrizações de convecção. A verificação foca nas previsões de chuva de 24, 48 e 72 horas e nos limiares de precipitação de 1mm, 5mm e 10mm sobre o Estado do Ceará. Os membros do ensemble apresentaram resultados superiores à persistência em todo o domínio avaliado. O modelo RAMS apresenta maior índice de acerto, principalmente no litoral norte do Estado, porém um maior falso alarme em comparação com o modelo WRF. O sistema de previsão de chuva diminui sua qualidade com o aumento dos horizontes e a intensidade da chuva que se quer prever.

How local cracks can contribute to the global cracks landscape is a goal of several scientiﬁc top... more How local cracks can contribute to the global cracks landscape is a goal of several scientiﬁc topics, for ex-ample, how bottlenecks can impact the robustness of trafﬁc into a city? In one direction, cracks from cascading failures into networks were generated using a modiﬁed Optimal Path-Cracking (OPC) model proposed by Andrade et al [1]. In this model, we broke links of maximum energies from optimal paths between two sites with internal (euclidean) distances l in networks with linear size L . Each link of this network has an energy value that scales with a power-law that can be controlled using a parameter of the disorder β . Using ﬁnite-size scaling and the exponents from percolation theory we found that the mass of the cracked links on local optimal paths scales with a power-law l 0 . 4 as a separable equation from L and that can be independent of the disorder parameter.

Drought: Research and Science-Policy Interfacing, 2015

This study carried out a comparative performance analysis on two climate indexes (flood and droug... more This study carried out a comparative performance analysis on two climate indexes (flood and drought indexes) based on daily rainfall to determine the most appropriate for indicating the severity of drought conditions in the rainy season of Ceará. The paper examines the variance explained by such indexes of the observed maize yields for the period 1990 to 2012. The potential predictability of the flood index and drought index are evaluated using a multi-ensemble of 20 members forecast of the NCEP (National Centers for Environmental Prediction) Regional Spectral Model (RSM) nested into the ECHAM4.6 driven by persisted Sea Surface Temperatures (SSTs) in February-May (FMAM) season during the period 1974-2012. The analysis shows that the flood index explains better the variance of the maize yields in Ceará than the drought index. The RSM is able to predict the spatial-temporal variability of such index, showing higher correlation over the Sertão Central region, which is known as the driest region in Ceará. Our results indicate high predictability of the index for estimating maize yields. The paper also shows that persistence of SST over several months is sufficient for a good predictive capability of such scheme. It was also shown that the SST-forced component of climate variation does translate into the weather features that are important for crop yields.

Physical Review E

We investigate percolation on a randomly directed lattice, an intermediate between standard perco... more We investigate percolation on a randomly directed lattice, an intermediate between standard percolation and directed percolation, focusing on the isotropic case in which bonds on opposite directions occur with the same probability. We derive exact results for the percolation threshold on planar lattices, and present a conjecture for the value the percolation-threshold for in any lattice. We also identify presumably universal critical exponents, including a fractal dimension, associated with the strongly-connected components both for planar and cubic lattices. These critical exponents are different from those associated either with standard percolation or with directed percolation.

Revista Brasileira De Meteorologia, 2011