Results 41 to 50 of about 29,184,903 (305)

Passivity-based control for rocket launcher position servo system based on improved active disturbance rejection technology

Advances in Mechanical Engineering, 2018
In order to achieve high motion accuracy and better robustness of the rocket launcher position servo system driven by a permanent magnet synchronous motor, a passivity-based controller based on improved active disturbance rejection control is proposed in
Ronglin Wang, Baochun Lu, Yuanlong Hou, Qiang Gao   +3 more
doaj   +1 more source

Port-Hamiltonian Modeling and IDA-PBC Control of an IPMC-Actuated Flexible Beam

Actuators, 2021
In this paper, the infinite-dimensional port-Hamiltonian modelling and control problem of a flexible beam actuated using ionic polymer metal composite (IPMC) actuators is investigated.
Weijun Zhou, Yongxin Wu, Haiqiang Hu, Yanjun Li, Yu Wang   +4 more
doaj   +1 more source

Stability, Causality, and Passivity in Electrical Interconnect Models [PDF]

, 2007
Modern packaging design requires extensive signal integrity simulations in order to assess the electrical performance of the system. The feasibility of such simulations is granted only when accurate and efficient models are available for all system parts
ACHAR R., Grivet-Talocia, S., Achar, R., GRIVET TALOCIA, STEFANO, Nakhla, M.S., Triverio, Piero, NAKHLA M. S., Canavero, Flavio   +7 more
core   +1 more source

Human Modeling and Passivity Analysis for Semi-Autonomous Multi-Robot Navigation in Three Dimensions

IEEE Open Journal of Control Systems
In this article, we study a one-human-multiple-robot interaction for human-enabled multi-robot navigation in three dimensions. We employ two fully distributed control architectures designed based on human passivity and human passivity shortage. The first
Takeshi Hatanaka, Takahiro Mochizuki, Takumi Sumino, Jose M. Maestre, Nikhil Chopra   +4 more
doaj   +1 more source

Passivity-Based Control Design Methodology for UPS Systems

Energies, 2019
This paper presents a passivity-based control (PBC) design methodology for three-phase voltage source inverters (VSI) for uninterruptable power supply (UPS) systems where reduced harmonic distortions for the nonlinear load, reduced output voltage ...
Zbigniew Rymarski, Krzysztof Bernacki, Łukasz Dyga, Pooya Davari   +3 more
doaj   +1 more source

A robust passivity based control strategy for quasi‐resonant converters

IET Power Electronics, 2021
This paper presents a robust passivity‐based control (RPBC) strategy for half‐wave zero‐voltage switching quasi‐resonant (HW‐ZVS‐QR) buck and boost type converters. The proposed controller is based on energy shaping and damping injection.
Mostafa Ali Ayubirad, Simin Amiri Siavoshani, Mohammad Javad Yazdanpanah   +2 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Friction Observer and Compensation for Control of Robots with Joint Torque Measurement [PDF]

, 2008
In this paper we introduce a friction observer for robots with joint torque sensing (in particular for the DLR medical robot) in order to increase the positioning accuracy and the performance of torque control.
Hirzinger, Gerd, Albu-Schäffer, Alin Olimpiu, Alessandro De Luca, Le-Tien, Luc, A. Albu Schaeffer, Alin Albu-Schaffer, Gerd Hirzinger, L. Le Tien, G. Hirzinger, De Luca, Alessandro, Luc Le Tien   +10 more
core   +1 more source

Delay-dependent passivity analysis of nondeterministic genetic regulatory networks with leakage and distributed delays against impulsive perturbations

Advances in Difference Equations, 2021
This work is concerned with the problem for stochastic genetic regulatory networks (GRNs) subject to mixed time delays via passivity control in which mixed time delays consist of leakage, discrete, and distributed delays.
S. Senthilraj, T. Saravanakumar, R. Raja, J. Alzabut   +3 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source