Results 21 to 30 of about 35,405 (190)

Longitudinal Qualitative Methods in Health Behavior and Nursing Research: Assumptions, Design, Analysis and Lessons Learned

open access: yesInternational Journal of Qualitative Methods, 2020
Longitudinal qualitative research (LQR) is an emerging methodology in health behavior and nursing research. Researchers are turning to LQR to understand experiences across time as well as identify facilitators and inhibitors of health/illness behaviors ...
Emily L. Tuthill   +3 more
doaj   +1 more source

Localized LQR Optimal Control [PDF]

open access: yes, 2014
This paper introduces a receding horizon like control scheme for localizable distributed systems, in which the effect of each local disturbance is limited spatially and temporally. We characterize such systems by a set of linear equality constraints, and
Doyle, John C.   +2 more
core   +2 more sources

Design and simulate of LQR-Fuzzy controller for unicycle robot with double flywheels [PDF]

open access: yesMATEC Web of Conferences, 2018
This research is focus on design and simulate unicycle robot with double flywheels model with LQR-Fuzzy controller. Roll balancing torque is generated by gyroscopic effect. Pitch balancing torque is applied by inverted pendulum concept.
Chantarachit Surachat
doaj   +1 more source

Proportional Double Derivative Linear Quadratic Regulator Controller Using Improvised Grey Wolf Optimization Technique to Control Quadcopter

open access: yesApplied Sciences, 2021
A hybrid proportional double derivative and linear quadratic regulator (PD2-LQR) controller is designed for altitude (z) and attitude (roll, pitch, and yaw) control of a quadrotor vehicle.
Mohamad Norherman Shauqee   +2 more
doaj   +1 more source

Resummed prediction for Higgs boson production through $b\bar{b}$ annihilation at N$^3$LL [PDF]

open access: yes, 2019
We present an accurate theoretical prediction for the production of Higgs boson through bottom quark annihilation at the LHC up to next-to-next-to-next-to leading order (N$^3$LO) plus next-to-next-to-next-to-leading logarithmic (N$^3$LL) accuracy.
Chakraborty, Amlan   +4 more
core   +1 more source

Linear Control Schemes for Rotary Double Inverted Pendulum

open access: yesRobotica & Management, 2023
In this article, the rotary double parallel inverted pendulum (RDPIP) is researched and presented. Additionally, some linear controllers, such as PID, PID, PID-LQR cascade, are proposed, developed to control RDPIP, and the impact of those controllers on ...
Minh-Duy Vo   +7 more
doaj   +1 more source

Quarter car active suspension system design using optimal and robust control method [PDF]

open access: yes, 2020
This paper offers with the theoretical and computational evaluation of optimal& robust controlproblems, with the goal of providing answers to them with MATLAB simulation.For the robust control, -synthesis controller and for the ...
Jibril, Mustefa
core   +1 more source

Distributed LQR design for identical dynamically coupled systems: Application to load frequency control of multi-area power grid [PDF]

open access: yes, 2019
The paper proposes a distributed LQR method for the solution to regulator problems of networks composed of dynamically dependent agents. It is assumed that these dynamical couplings among agents can be expressed in a state-space form of a certain ...
Dritsas, L.   +2 more
core   +1 more source

Real Time Performance Comparison of Buck Converter Circuit Controlled By Discrete Time PID, LQR and SMC Controllers in Continuous-Current Mode

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
In this study, a DC-DC buckconverter circuit which is used to get direct voltage by decreasing the sourcevoltage is researched. Firstly mathematical model for a DC-DC buck convertercircuit is obtained and critical inductance value is calculated to make ...
Ömer Özdemir, İrfan Yazıcı
doaj   +1 more source

Reguladores basados en observadores de perturbaciones: principios de funcionamiento y métodos de diseño

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2022
Durante las últimas décadas, los reguladores lineales basados en observadores de perturbaciones han experimentado un interés creciente entre la comunidad científica, principalmente, debido a sus buenas propiedades para tolerar cambios o incertidumbres en
Alberto Castillo   +2 more
doaj   +1 more source

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