Results 51 to 60 of about 205,115 (334)

Global Stability of Delayed Ecosystem via Impulsive Differential Inequality and Minimax Principle

open access: yesMathematics, 2021
This paper reports applying Minimax principle and impulsive differential inequality to derive the existence of multiple stationary solutions and the global stability of a positive stationary solution for a delayed feedback Gilpin–Ayala competition model ...
Ruofeng Rao
doaj   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe   +4 more
wiley   +1 more source

Consensus of Hybrid Switched Multi-Agent Systems Under Different Topologies Via Impulsive Control

open access: yesIEEE Access, 2020
The consensus problem is studied in this paper for a class of hybrid switched multi-agent systems (HSMASs) consisted of continuous-time (CT) and discrete-time (DT) subsystems via impulsive control. Due to the complex dynamic characteristics of the system,
Zhiwen Fu   +3 more
doaj   +1 more source

Necessary conditions involving Lie brackets for impulsive optimal control problems; the commutative case [PDF]

open access: yes, 2012
In this article we study control problems with systems that are governed by ordinary differential equations whose vector fields depend linearly in the time derivatives of some components of the control.
Aronna, Maria Soledad, Rampazzo, Franco
core   +1 more source

Necessary conditions involving Lie brackets for impulsive optimal control problems

open access: yes, 2019
We obtain higher order necessary conditions for a minimum of a Mayer optimal control problem connected with a nonlinear, control-affine system, where the controls range on an m-dimensional Euclidean space.
Aronna, M. Soledad   +2 more
core   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang   +14 more
wiley   +1 more source

Coordinated Tracking for Nonlinear Multiagent Systems under Variable-Time Impulsive Control

open access: yesComplexity, 2019
This paper addresses variable-time impulsive control for coordinated tracking problem in nonlinear multiagent systems. To make followers coordinately track the leader, a variable-time impulsive controller is designed. Under some well-selected conditions,
Yuan Tian   +3 more
doaj   +1 more source

Trajectory Planning for Spacecraft Rendezvous in Elliptical Orbits with On / Off Thrusters [PDF]

open access: yes, 2014
The 19th World Congress of the International Federation of Automatic Control 2014 Cape Town, SudáfricaIn a previous work, the authors developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal Pulse-Width Modulated (PWM ...
Camacho, Eduardo F.   +2 more
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

Construction of the Reachable Set for a Two-Dimensional Bilinear Impulsive Control System

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2016
This paper deals with a problem of construction of the reachable set for an impulsive control system with trajectories of bounded variation and impulsive controls (regular vector measures).
D. Apanovich, V. Voronov, O. Samsonyuk
doaj  

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