Results 31 to 40 of about 32,510 (193)

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

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

Vibration Control Design of Fuel Sloshing in a Spacecraft Using Virtual Actuator [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2022
This paper is dedicated to modeling of fuel sloshing dynamics and its effect on the stability and control of the space vehicle. Sloshing due to the liquid movement in the fuel tank of a space vehicle's propulsion system can be effective on the vehicle’s ...
Abdolmajid khoshnood   +2 more
doaj   +1 more source

LQR optimization of linear system switching

open access: yesIEEE Transactions on Automatic Control, 2002
Considers offline optimization of a switching sequence for a given finite set of linear control systems, together with joint optimization of control laws. A linear quadratic full information criterion is optimized and dynamic programming is used to find an optimal switching sequence and control law.
Lincoln, Bo, Bernhardsson, Bo
openaire   +2 more sources

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

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

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

Analysis of Control System Models with Conventional LQR and Fuzzy LQR Controller

open access: yesProcedia Computer Science, 2019
Abstract Linear quadratic LQR and fuzzy FLC+LQR controllers are analyzed. It is shown that under the same conditions, the fuzzy FLC+LQR controller has a much higher speed than the LQR controller.
Y.I. Kudinov   +5 more
openaire   +1 more source

Cooperative distributed LQR control for longitudinal flight of a formation of non-identical low-speed experimental UAV's [PDF]

open access: yes, 2018
In this paper, an established distributed LQR control methodology applied to identical linear systems is extended to control arbitrary formations of non-identical UAV's.
Halikias, G.   +3 more
core   +1 more source

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