Results 41 to 50 of about 27,235,390 (206)

Advances in High‐Temperature Microwave‐Absorbing Materials With Rare Metals: Preparations, Classifications, and Strategies

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT High‐temperature microwave‐absorbing materials (HTMAMs) are vital for the electromagnetic stealth of hypersonic aircraft and aerospace engines. Traditional carbon‐based or magnetic‐based absorbers suffer from oxidation, Curie‐temperature limitations, and impedance mismatch under extreme conditions.
Jing Wu   +6 more
wiley   +1 more source

Model Reference Adaptive Control (MRAC) Experiment Description [PDF]

open access: yes, 2010
Description of a simplified Model Reference Adaptive Control (MRAC) Experiment that will be flown in December of 2010 on the F-18 Full-scale Advanced Systems Testbed (FAST ...
Hanson, Curtis E.
core  

Performance Improvement of Various MRAC Setups Based on LLM

open access: yesIEEE Access
This study proposes integrating Large Language Models (LLMs) into the adaptation mechanism of Model Reference Adaptive Control (MRAC) systems to improve their performance.
Handan Gursoy-Demir   +4 more
doaj   +1 more source

Design of direct MRAC augmented with 2 DoF PIDD controller: An application to speed control of a servo plant

open access: yesJournal of King Saud University: Engineering Sciences, 2020
An adaptive control with reference model provides the solution for uncertainty in dynamics, transient performance characteristics of autonomous systems.
R. Rajesh, S.N. Deepa
doaj   +1 more source

Biogeography and Reinterpretation of the Evolution of Paternal Care Scenario in Belostomatidae (Insecta, Hemiptera)

open access: yesJournal of Biogeography, Volume 53, Issue 10, October 2026.
ABSTRACT Aim To estimate the origin and diversification times of the main lineages of Belostomatidae, with emphasis on the subfamilies Belostomatinae and Lethocerinae; to reconstruct the biogeographical history of the family's representatives, estimating which locations may have served as important sources of immigration and emigration events and ...
José Ricardo Inacio Ribeiro   +3 more
wiley   +1 more source

An Improved Hybrid MRAC–LQR Control Scheme for Robust Quadrotor Altitude and Attitude Regulation

open access: yesDrones
This paper presents the design and analysis of a hybrid Model Reference Adaptive Controller combined with a Linear Quadratic Regulator (MRAC–LQR) for a quadrotor unmanned aerial vehicle (UAV), addressing challenges posed by nonlinear dynamics ...
Abdelrahman A. Alblooshi   +2 more
doaj   +1 more source

A Review of Fault‐Tolerant Control Applications in Process Equipment: Boilers, Heat Exchangers, Pumps, Turbines, and Engines for Greater Reliability

open access: yesEngineering Reports, Volume 8, Issue 9, September 2026.
The article explores ways such as ultrasonic guided wave testing, infrared thermography, acoustic emission, vibration analysis, and oil analysis to prevent faults from affecting the plant and help with fault isolation. It focuses on how FTC is combined with modern tools like Artificial Intelligence (AI), the Internet of Things (IoT), sliding mode ...
Arslan Ahmed Amin   +4 more
wiley   +1 more source

Multi-drug infusion control using model reference adaptive algorithm [PDF]

open access: yes, 2011
Control of physiological states such as mean arterial pressure (MAP) has been successfully achieved using single drug by different control algorithms. Multi-drug delivery demonstrates a significantly challenging task as compared to control with a single ...
Mahieddine, Fatima   +2 more
core  

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 40, Issue 6, Page 1196-1220, June 2026.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

Implementation of a Decoupled Model Reference Adaptive Control (MRAC) of a Flotation Process

open access: yesInternational Journal of Electrical Engineering and Applied Sciences (IJEEAS)
The approach of applying the Massachusetts Institute of Technology, MIT rule as a decoupled Model Reference Adaptive Controller (MRAC) for a column flotation process is taken up in this article. The airflow rate and wash water flow rate can be adequately regulated with this control scheme.
M. T. Samodien   +2 more
openaire   +1 more source

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