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On the Stability and Equilibrium Points of Multistaged SI (n) R Epidemic Models
Nistal Riobello, Raúl 
; De la Sen Parte, Manuel ; ; Ibeas Hernández, Asier ; Garrido Hernández, Aitor Josu (Hindawi Publishing, 2015)
; De la Sen Parte, Manuel ; ; Ibeas Hernández, Asier ; Garrido Hernández, Aitor Josu (Hindawi Publishing, 2015)
This paper relies on the concept of next generation matrix defined ad hoc for a new proposed extended SEIR model referred to as SI(n)R-model to study its stability. The model includes n successive stages of infectious ...
A Modelization of the Propagation of COVID-19 in Regions of Spain and Italy with Evaluation of the Transmission Rates Related to the Intervention Measures
Nistal Riobello, Raúl ; De la Sen Parte, Manuel ; Gabirondo Aranguren, Jon ; ; Garrido Hernández, Aitor Josu ; Garrido Hernández, Izaskun (MDPI, 2021-02-05)
; De la Sen Parte, Manuel ; Gabirondo Aranguren, Jon ; ; Garrido Hernández, Aitor Josu ; Garrido Hernández, Izaskun (MDPI, 2021-02-05)
Two discrete mathematical SIR models (Susceptible-Infectious-Recovered) are proposed for modelling the propagation of the SARS-CoV-2 (COVID-19) through Spain and Italy. One of the proposed models is delay-free while the ...
Supervision of the Infection in an SI (SI-RC) Epidemic Model by Using a Test Loss Function to Update the Vaccination and Treatment Controls
De la Sen Parte, Manuel ; Ibeas Hernández, Asier ; Nistal Riobello, Raúl ; ; Garrido Hernández, Aitor Josu (MDPI, 2020-10-15)
; Ibeas Hernández, Asier ; Nistal Riobello, Raúl ; ; Garrido Hernández, Aitor Josu (MDPI, 2020-10-15)
This paper studies and proposes some supervisory techniques to update the vaccination and control gains through time in a modified SI (susceptible-infectious) epidemic model involving the susceptible and subpopulations. ...
On the Use of Entropy Issues to Evaluate and Control the Transients in Some Epidemic Models
De la Sen Parte, Manuel ; Nistal Riobello, Raúl ; Ibeas Hernández, Asier ; Garrido Hernández, Aitor Josu (MDPI, 2020-05-09)
; Nistal Riobello, Raúl ; Ibeas Hernández, Asier ; Garrido Hernández, Aitor Josu (MDPI, 2020-05-09)
This paper studies the representation of a general epidemic model by means of a first-order differential equation with a time-varying log-normal type coefficient. Then the generalization of the first-order differential ...
A Study on COVID-19 Incidence in Europe through Two SEIR Epidemic Models Which Consider Mixed Contagions from Asymptomatic and Symptomatic Individuals
Nistal Riobello, Raúl ; De la Sen Parte, Manuel ; Gabirondo Aranguren, Jon ; ; Garrido Hernández, Aitor Josu ; Garrido Hernández, Izaskun (MDPI, 2021-07-06)
; De la Sen Parte, Manuel ; Gabirondo Aranguren, Jon ; ; Garrido Hernández, Aitor Josu ; Garrido Hernández, Izaskun (MDPI, 2021-07-06)
The impact of the SARS-CoV-2 (COVID-19) on the world has been partially controlled through different measures of social isolation and prophylaxis. Two new SEIR (Susceptible-Exposed-Infected-Recovered) models are proposed ...
On the Properties of a Class of Impulsive Competition Beverton–Holt Equations
De la Sen Parte, Manuel ; Ibeas Hernández, Asier ; ; Garrido Hernández, Aitor Josu ; Garrido Hernández, Izaskun (MDPI, 2021-09-28)
; Ibeas Hernández, Asier ; ; Garrido Hernández, Aitor Josu ; Garrido Hernández, Izaskun (MDPI, 2021-09-28)
This paper is devoted to a type of combined impulsive discrete Beverton–Holt equations in ecology when eventual discontinuities at sampling time instants are considered. Such discontinuities could be interpreted as impulses ...
ANN-Based Airflow Control for an Oscillating Water Column Using Surface Elevation Measurements
; Garrido Hernández, Izaskun ; Garrido Hernández, Aitor Josu ; De la Sen Parte, Manuel (MDPI, 2020-01-29)
; Garrido Hernández, Aitor Josu ; De la Sen Parte, Manuel (MDPI, 2020-01-29)
Oscillating water column (OWC) plants face power generation limitations due to the stalling phenomenon. This behavior can be avoided by an airflow control strategy that can anticipate the incoming peak waves and reduce its ...
On an Extended Time-Varying Beverton–Holt Equation Subject to Harvesting Monitoring and Population Excess Penalty
De la Sen Parte, Manuel ; ; Ibeas Hernández, Asier ; Garrido Hernández, Aitor Josu (Hindawi, 2023-04)
; ; Ibeas Hernández, Asier ; Garrido Hernández, Aitor Josu (Hindawi, 2023-04)
This paper considers a more general eventually time-varying Beverton–Holt equation for species evolution which can include a harvesting action and a penalty for overpopulation numbers. The harvesting action may be positive ...
Fuzzy Airflow-Based Active Structural Control of Integrated Oscillating Water Columns for the Enhancement of Floating Offshore Wind Turbine Stabilization
; Garrido Hernández, Izaskun ; Garrido Hernández, Aitor Josu ; De la Sen Parte, Manuel (Wiley, 2023)
; Garrido Hernández, Aitor Josu ; De la Sen Parte, Manuel (Wiley, 2023)
This paper presents the modeling and stabilization of a floating offshore wind turbine (FOWT) using oscillating water columns (OWCs) as active structural control. The novel concept of this work is to design a new FOWT ...
Rotational Speed Control Using ANN-Based MPPT for OWC Based on Surface Elevation Measurements
; Garrido Hernández, Izaskun ; Garrido Hernández, Aitor Josu ; De la Sen Parte, Manuel (MDPI, 2020-11-16)
; Garrido Hernández, Aitor Josu ; De la Sen Parte, Manuel (MDPI, 2020-11-16)
This paper presents an ANN-based rotational speed control to avoid the stalling behavior in Oscillating Water Columns composed of a Doubly Fed Induction Generator driven by a Wells turbine. This control strategy uses ...