Results 51 to 60 of about 945,861 (313)

Optimization of Disturbance Rejection in Systems with Saturating Actuators

Journal of Mathematical Analysis and Applications, 2000
The authors consider the system with saturating actuators, having the state-space representation \[ \dot x_G=Ax_G+B_1w+B_2 \varphi(u),\quad z=C_1x_G+D_{12}u,\quad y=C_2x_G+D_{21}w, \] where \(x_G=[x_P^T, x_A^T, x_{F_1}^T, x_{F_2}^T, x_{H_1}^T , x_{H_2}^T]^T\in\mathbb R^{n_G}\), \(w=[w_1, w_2]^T\), \(z=[z_1, z_2]^T\), \(\varphi(u)\) is the static ...
Gökçek, C., Kabamba, P.T., Meerkov, S.M.   +2 more
openaire   +2 more sources

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

Advanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg, Shelly Zlotnikov, Maya Fiorentino, Yuval Elias, Ornit Nagler‐Avramovitz, Hagay Shpaisman   +5 more
wiley   +1 more source

Adaptive Control for Constrained Nonlinear Systems Under Deception Attacks and Actuator Saturation

Mathematics
This paper proposes an adaptive control framework for constrained nonlinear systems subject to sensor and actuator deception attacks, in the presence of actuator saturation.
Shixuan Zhang, Ping Zhao, Muyu Li
doaj   +1 more source

Anti-windup compensator design for power system subjected to time-delay and actuator saturation

IET Smart Grid, 2018
In this study, a delay-dependent anti-windup compensator (AWC) is designed for supplementary damping control (SDC) of flexible AC transmission system (FACTS) device to enhance the damping of inter-area oscillations
Maddela Chinna Obaiah, Bidyadhar Subudhi, Bidyadhar Subudhi   +2 more
doaj   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Actuator-Aware Evaluation of MPC and Classical Controllers for Automated Insulin Delivery

Actuators
Automated insulin delivery (AID) systems depend on their actuators’ behavior since saturation limits, rate constraints, and hardware degradation directly affect the stability and safety of glycemic regulation.
Adeel Iqbal, Pratik Goswami, Hamid Naseem   +2 more
doaj   +1 more source

Influence of the core saturation on the dynamic performance of the magnetostrictive actuator

Archives of Electrical Engineering, 2017
The paper considers the influence of core saturation on the dynamics of magnetostrictive fast-acting actuator. The field-circuit mathematical model of the dynamic operation of the capacitor-actuator system is applied.
Kowalski Krzysztof, Nowak Lech, Knypiński Łukasz, Idziak Paweł   +3 more
doaj   +1 more source

Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions

Advanced Materials, EarlyView.
Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng, Yu Xuan Yeoh, Nicholas Yong Wei Foo, Keerthana Radhakrishnan, Guo Zhan Lum   +4 more
wiley   +1 more source