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Frictional dynamics of viscoelastic solids driven on a rough surface
(American Physical Society, 2015-07)
We study the effect of viscoelastic dynamics on the frictional properties of a (mean-field) spring-block system pulled on a rough surface by an external drive. When the drive moves at constant velocity V, two dynamical ...
Dynamic coordination with timing frictions: theory and applications
(2017)
We start by presenting the general model of dynamic coordination with timing frictions and some key theoretical results. We prove the model features a unique rationalizable equilibrium, present a method to solve the social ...
Quantum friction in two-dimensional topological materials
(American Physical Society, 2018-04)
We develop the theory of quantum friction in two-dimensional topological materials. The quantum drag force on a metallic nanoparticle moving above such systems is sensitive to the nontrivial topology of their electronic ...
Creep motion of a model frictional system
(American Physical Society, 2011-12)
We report on the dynamics of a model frictional system submitted to minute external perturbations. The system consists of a chain of sliders connected through elastic springs that rest on an incline. By introducing cyclic ...
A non-linear Cosserat rod model for drill-string dynamics in arbitrary borehole geometries with contact and friction
(Pergamon-Elsevier Science Ltd, 2019-07)
A model for drill-string dynamics in arbitrary borehole geometries based on the Cosserat rods theory is presented. The objective of this work is to exploit the capabilities of the Cosserat rods to capture the full range ...
Comparison of equations for the estimation of head loss in polyethylene tube
(Univ Estadual Centro-oeste, 2018-01-01)
The determination of the head loss in irrigation projects is not used because it is a low practical method. For this, there are equations that estimate this variable, based on characteristics of the pipes material, diameter ...
Who matters in dynamic coordination problems?
(2021-06)
This paper studies a dynamic coordination model with timing frictions and heterogeneity in several dimensions. Each agent might a ect and be a ected by others in di erent ways, and the frequency of their decisions might ...
Lessons from COVID’S Vaccination: External-Internal Frictions and Efficiency
(MDPICH, 2023)
This paper explores some economic variables that determine the emerging of new COVID-19 variants and the determinants of vaccination advances in 108 countries during a quarterly period from March 2020 to March 2022. We ...