A5078880827- Control and Dynamics of Mobile Robots
- Control Systems and Identification
- Robotic Mechanisms and Dynamics
- Dynamics and Control of Mechanical Systems
- Vehicle Dynamics and Control Systems
- Stability and Control of Uncertain Systems
- Iterative Learning Control Systems
- Neural Networks Stability and Synchronization
- Real-time simulation and control systems
- Probabilistic and Robust Engineering Design
- Advanced Control Systems Optimization
- Chaos control and synchronization
- Neural Networks and Applications
- Mosquito-borne diseases and control
- Network Time Synchronization Technologies
- Mechanical Engineering and Vibrations Research
- Energy Efficient Wireless Sensor Networks
- Molecular Communication and Nanonetworks
- Adaptive Control of Nonlinear Systems
- Magnetic Bearings and Levitation Dynamics
- Diabetic Foot Ulcer Assessment and Management
- Power Quality and Harmonics
- Geophysics and Sensor Technology
- COVID-19 epidemiological studies
- Mathematical and Theoretical Epidemiology and Ecology Models
Universidade de São Paulo
2004-2024
Instituto Politécnico de Leiria
2023
Sesame Workshop
2022
Universidade Politecnica
2015-2021
Universidade de Brasília
2021
Hospital Universitário da Universidade de São Paulo
2016-2019
Universidade de Sorocaba
2010-2018
Universidade Cidade de São Paulo
2017
Centre Hospitalier Universitaire de Nîmes
2014
Universidade Estadual Paulista (Unesp)
2007-2013
Morbidity and mortality for critically ill patients with infections remains a global healthcare problem. We aimed to determine whether β-lactam antibiotic dosing in achieves concentrations associated maximal activity affect patient outcome.This was prospective, multinational pharmacokinetic point-prevalence study including 8 antibiotics. Two blood samples were taken from each during single interval. The primary pharmacokinetic/pharmacodynamic targets free above the minimum inhibitory...
This paper discusses the main characteristics and presents a comparative analysis of three synchronization algorithms based respectively, on phase-locked loop, Kalman filter discrete Fourier transform. It will be described single three-phase models first two methods single-phase model third one. Details how to modify filtering properties or dynamic response each algorithm discussed in terms their design parameters. In order compare different algorithms, these parameters set for maximum...
The paper deals with the quantification of uncertainties in an elevator system, subjected to lateral vibration induced by car guide rail irregularities, and without a feedback control system. A mathematical model for system is derived, stochastic profile irregularities constructed. This describes as random field, which represented means Karhunen-Loève expansion. Polynomial chaos employed compute propagation through model, order evaluate disturbance rejection properties robustness closed-loop
This paper deals with the design and analysis of a Dynamic Voltage Restorer output voltage control. Such control is based on multiloop strategy, an inner current PID regulator outer P+Resonant controller. The applied inductor current. It will be also demonstrated how load behavior may influence in DVR voltage, which justifies need for resonant Additionally, it discussed application modified algorithm identification references, previously presented positive sequence detector. Since studied...
The quadratic distance function on a Riemannian manifold can be expressed in terms of the position vector, which turn constructed using geodesic normal coordinates through consideration exponential map. formulas for derivative are useful to study Lyapunov stability dynamical systems, and build cost functions optimal control estimation.
In 2012, Brasil had a proved reserve of 15.3 billions BOE (barrel oil equivalent). The offshore corresponds to more 94% this amount. Petrobras, the Brasilian E&P company, leads production in ultra-deep water (deeper than 1500 m depth) worldwide. current waters deploys Floating Production Unit (FPU), and some subsea equipments, such as, wet Christmas trees, manifolds, separation & booster systems, risers pipelines. However, on board FPU, there are several other namely, power generators,...
The goal of this paper is to present a different approach the analysis absolute stability Lurie type systems in single-input-single-output (SISO) case using robust control theory. proposed technique enables design controllers via [Formula: see text] mixed-sensitivity (S/KS/T), where, besides making system absolutely stable, performance problem can also be solved. In addition, it demonstrated that possible make use new time-delay systems. Thus, through methodology, work paves way study...
<p>Alzheimer's disease (AD) is a degenerative neurological condition that impacts millions of individuals across the globe and remains without healing. In search for new possibilities treatments this terrible disease, work presents improved Alzheimer-like (IALD) model connects it to control technique establishes computationally modeled memory healing similar AD. The modeling proceeds from recent etiological pathogenetic hypotheses AD related amyloid precursor protein (APP). For IALD...
A major concern in practical applications of wireless networked control systems (WNCSs) is the energy expenditure devices. There must be a tradeoff between performance requirement for fast updates and battery lifetime sensors. This article presents new adaptive controller efficiency industrial WNCSs. Reducing frequency transmission allows reduction power devices WNCS.
A recent trend in networked control systems (NCSs) is the use of wireless networks enabling interoperability between existing wired and systems. One major challenges these NCSs (WNCSs) to overcome impact message loss that degrades performance stability Moreover, this greater when dealing with burst or successive losses. This paper discusses presents experimental results a compensation strategy deal problem which NCS mathematical model runs parallel physical process, providing sensor virtual...
In this paper, we present a mathematical model of ball and plate system, control law analyze its robustness properties by using the polynomial chaos method. The rolls without slipping. There is an auxiliary robot vision system that determines bodies' positions velocities, used for purposes. actuators are to orthogonal DC motors, changes plate's angles with ground. extension beam highly nonlinear. decoupled in two independent equations coordinates x y. Finally, resulting nonlinear closed loop...
It is used the concept of Cartan’s connection and principal fiber bundles to obtain formulas for kinematics dynamics calculations robotic manipulators. A bundle a differentiable manifold formed by base space B (in this case ℝ3)) plus all possible reference frames attached point p ∈ (that Sp). connections are most general way represent velocity frames. In previous works, those ideas were applied with fibers homomorphic Lie group SO(3) (or SE(3)). paper, it either SU(2) (for rotational motion)...
This paper presents a robustness analysis of an air heating plant with multivariable closed-loop control law by using the polynomial chaos methodology (MPC). The consists PVC tube fan in input (that forces through tube) and mass flux sensor output. A resistance warms as it flows inside tube, thermo-couple measures temperature. has thus two inputs (the fan's rotation intensity heat generated resistance, both measured percent maximum value) outputs (air temperature flux, also maximal value)....
Gyroscopic systems are multi-body which present coupled three dimensional motion. The configuration space and the state differentiable manifolds, differential geometric concepts frequently useful in process of modeling. This paper deals with a Control Moment Gyroscope (CMG), is not asymptotically stable, so it needs stabilizing control law. We apply new methodology modeling kinematics dynamics rigid systems, based concept Cartan’s connection covariant derivative. has two inputs (torques)...
Recent advances in wireless technologies and the proliferation of sensors led to an increasing interest Wireless Networked Control Systems (WNCS). A major issue WNCS is battery lifetime sensors, which are a limited source power. As transmission requires high-energy expenditure, it imperative reduce number transmissions order save battery. This paper develops multi-rate adaptive controller for energy efficient application WNCS. self-tuning applied identify model, simulate that model tune...
The paper deals with the quantification of uncertainties in an elevator system, subjected to lateral vibration induced by car guide rail irregularities, and without a feedback control system. A mathematical model for system is derived, stochastic profile irregularities constructed. This describes as random field, which represented means Karhunen-Loève expansion. Polynomial chaos employed compute propagation through model, order evaluate disturbance rejection properties robustness closed-loop