Search Results - "Araújo, José M"

Discussion on ‘State feedback control with time delay’ by Araújo, José M.

“…•Classical control is applied to analysis of eigenvalue assignment with time-delay.•Margins, Nyquist plots, and Padé approximations are compared with Taylor…”
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Receptance-based model predictive control of multibody systems with time-varying references by Pereira, Bruno S. S., Santos, Tito L. M., Araújo, José M.

“…This paper proposes a receptance-based linear model predictive control approach for time-varying reference tracking of multibody dynamical systems…”
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Design of rank-one modification feedback controllers for second-order systems with time delay using frequency response methods by Dantas, Nelson J.B., Dórea, Carlos E.T., Araújo, José M.

“…•A novel approach to design state feedback controllers for 2nd order systems with time delay is presented.•The approach uses the receptance method, with the…”
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Proportional-integral-derivative-acceleration robust controllers for vibrating systems by Gontijo, Danielle S, Araújo, José M, Santos, Tito LM, Souza, Fernando O

“…This paper presents a design framework to obtain a robust multivariable Proportional-Integral-Derivative (PID) controller for second-order linear vibrating…”
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Design of Observers With Error Limitation in Discrete-Time Descriptor Systems: A Case Study of a Hydraulic Tank System by Araujo, J. M., Barros, P. R., Dorea, C. E. T.

“…A novel descriptor observer structure is proposed in the context of discrete-time descriptor linear systems. On the basis of this new structure, the…”
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Crab Bioturbation and Seasonality Control Nitrous Oxide Emissions in Semiarid Mangrove Forests (Ceará, Brazil) by Otero, Xosé L., Araújo, José M. C., Barcellos, Diego, Queiroz, Hermano M., Romero, Danilo J., Nóbrega, Gabriel N., Siqueira Neto, Marcos, Ferreira, Tiago O.

“…Seasonality and crab activity affects the nutrients and physicochemical parameters in mangrove soils, thus, affecting the emissions of greenhouse gases, such…”
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Robustness of the quadratic partial eigenvalue assignment using spectrum sensitivities for state and derivative feedback designs by Araújo, José M, Dórea, Carlos ET, Gonçalves, Luiz MG, Carvalho, João BP, Datta, Biswa N

“…Based on the notions of spectrum sensitivities, proposed by us earlier, we develop a novel optimization approach to deal with robustness in the closed-loop…”
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Dynamic output feedback control of constrained descriptor systems by Araújo, José M, Barros, Péricles R, Dórea, Carlos ET

“…This paper aims to present an approach for design of dynamic output feedback compensators for linear discrete-time descriptor systems subject to state and…”
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Special issue on control of second-order vibrating systems with time delay by Araújo, José M., Santos, Tito L.M.

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State derivative feedback in second-order linear systems: A comparative analysis of perturbed eigenvalues under coefficient variation by Araújo, José M., Dórea, Carlos E.T., Gonçalves, Luiz M.G., Datta, Biswa N.

“…This paper presents a comparative study of sensitivity to parameter variation in two feedback techniques applied in second-order linear systems: state feedback…”
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Cost-Utility Analysis of a Pharmacotherapy Follow-Up for Elderly Nursing Home Residents in Spain by Jódar-Sánchez, Francisco, Martín, José J., López del Amo, M. Puerto, García, Leticia, Araújo-Santos, José M., Epstein, David

“…Objectives To compare the cost‐effectiveness of a pharmacotherapy follow‐up for elderly nursing home (NH) residents with that of usual care. Design Prospective…”
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New Insights on the Mechanisms of Myocardial Injury in Hypertensive Patients With COVID-19 by Moll-Bernardes, Renata, Ferreira, Juliana R., Schaustz, Eduardo B., Sousa, Andréa S., Mattos, João D., Tortelly, Mariana B., Pimentel, Adriana L., Figueiredo, Ana Cristina B. S., Noya-Rabelo, Marcia M., Fortier, Sergio, Matos e Silva, Flavia A., Vera, Narendra, Conde, Luciana, Cabral-Castro, Mauro Jorge, Albuquerque, Denilson C., Rosado-de-Castro, Paulo Henrique, Camargo, Gabriel C., Pinheiro, Martha V. T., Freitas, Daniele O. L., Pittella, Ana M., Araújo, José Afonso M., Marques, André C., Gouvêa, Elias P., Terzi, Flavia V. O., Zukowski, Cleverson N., Gismondi, Ronaldo A. O. C., Bandeira, Bruno S., Oliveira, Renée S., Abufaiad, Barbara E. J., Miranda, Jacqueline S. S., Miranda, Luiz Guilherme, Souza, Olga F., Bozza, Fernando A., Luiz, Ronir R., Medei, Emiliano

“…Purpose Myocardial injury is common in hypertensive patients with 2019 coronavirus disease (COVID-19). Immune dysregulation could be associated to cardiac…”
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Magnetic Integration in A Soft-Switching Three-Phase Isolated DC-DC Converter by Oliveira, Raimundo N. M., De Araujo, Jose Willamy M., Tofoli, Fernando L., Oliveira, Demercil

“…This paper presents a method to reduce the volume of the magnetic structures associated with hybridge rectifiers typically used in the secondary side of…”
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On the Estimation of the Magnetic Behavior of Sendust Cores Under Different DC-Bias Conditions by De Araujo, Jose Willamy M., Oliveira, Raimundo N. M., Sgro, Domenico, Oliveira, Demercil

“…This paper introduces a novel method for estimating core losses in inductors employed as filters in DC-DC converters. Drawing upon readily available data…”
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Assessing The Current Imbalance of Current Multiplier Rectifiers Stage in Isolated dc-dc Converters by de Oliveira, Raimundo Nonato M., de Araujo Honorio, Dalton, de Araujo, Jose Willamy M., de Souza Oliveira, Demercil

“…This paper analyzes dc current sharing in isolated dc-dc converters employing current-doubler and current-tripler rectifiers. Unbalanced currents are likely to…”
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Multivariable DC Bias Control of a High Power AC-DC Dual-Active-Bridge Based Converter by de Araujo, Jose W. M., Honorio, Dalton de A., Oliveira, Demercil de S.

“…This paper addresses the dc magnetization issue in high-power single-stage dual active bridge (DAB) - based converters. A multivariable control strategy…”
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Potential of Metarhizium anisopliae and Beauveria bassiana isolates and neem oil to control the Aphid Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae) by de Araujo, Jr, José M, Marques, Edmilson J, de Oliveira, José V

“…This work aimed to determine the efficiency of the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana to control the aphid Lipaphis erysimi…”
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Partial pole assignment using rank-one control and receptance in second-order systems with time delay by Dantas, Nelson J. B., Dorea, Carlos E. T., Araujo, Jose M.

“…In this note, a partial pole assignment approach is presented for second-order systems with time delay. The method uses the versatile system receptance for…”
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The potential use of propolis as a cariostatic agent and its actions on mutans group streptococci by Libério, Silvana A., Pereira, Antônio Luís A., Araújo, Maria José A.M., Dutra, Richard P., Nascimento, Flávia R.F., Monteiro-Neto, Valério, Ribeiro, Maria Nilce S., Gonçalves, Azizedite G., Guerra, Rosane N.M.

“…Propolis is a resinous substance made by bees. It possesses many biological activities, and many studies have reported its potential application in the control…”
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Leakage Current Mitigation in Transformerless Grid-Connected PV Inverters Through Level Modulation Switching by De Carvalho, Caique Creomenes Almeida, Da Silva, Paulo Ricardo Dutra Ribeiro, Pomilio, Jose Antenor, Araujo, Jose M.

“…Leakage current is a common problem in transformerless grid-connected PV inverters, as it can cause elec-tromagnetic interference and reduce the quality of the…”
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