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Coarsening and clustering in run-and-tumble dynamics with short-range exclusion
The emergence of clustering and coarsening in crowded ensembles of self-propelled agents is studied using a lattice model in one dimension. The persistent exclusion process, where particles move at directions that change ...
Custo anual uniforme equivalente de máquinas de colheita florestal: uma abordagem estocástica
(Universidade Estadual Paulista (Unesp), 2019-08-27)
O sistema de colheita de árvores inteiras é realizado por um conjunto de máquinas autopropelidas que demanda importante aporte de capital, o qual implica diretamente no custo da colheita florestal mecanizada. Nesta ...
Clogging Transition of Vibration-Driven Vehicles Passing through Constrictions
(American Physical Society, 2017-12)
We report experimental results on the competitive passage of elongated self-propelled vehicles rushing through a constriction. For the chosen experimental conditions, we observe the emergence of intermittencies similar to ...
Economic viability of the whole tree harvest under conditions of uncertainty: a study in southeastern Brazil
(Taylor & Francis Inc, 2022-02-03)
Investments in mechanized wood harvesting operations are characterized by demanding capital and presenting uncertainties associated with productive and economic factors. The economic analysis based on the Monte Carlo method ...
Active mixtures interacting with walls and asymmetric obstacles
(Universidad de Chile, 2022)
Active matter is composed of a large number of self-propelled particles, with examples encompassing bacterial swarms, animal flocks, and autophoretic colloids. In this thesis, we study a mixture of fast and slow ...
Influence of swimming strategy on microorganism separation by asymmetric obstacles
(Amer Physical Soc, 2013-05)
It has been shown that a nanoliter chamber separated by a wall of asymmetric obstacles can lead to an inhomogeneous distribution of self-propelled microorganisms. Although it is well established that this rectification ...
Diversity of self-propulsion speeds reduces motility-induced clustering in confined active matter
(Royal Soc Chemistry, 2021)
Self-propelled swimmers such as bacteria agglomerate into clusters as a result of their persistent motion. In 1D, those clusters do not coalesce macroscopically and the stationary cluster size distribution (CSD) takes an ...
“Yes, you know how to teach!” experience, narrative and (self)training“Você sabe ensinar, sim!” Experiência, narrativa e (auto)formação
(Universidade Federal de Santa Maria, 2018)
Observed frequency-independent torque in flagellar bacterial motors optimizes space exploration
(American Physical Society, 2012-12-17)
A surprising feature of many bacterial motors is the apparently conserved form of their torque-frequency relation. Experiments indicate that the torque provided by the bacterial rotary motor is approximately constant over ...