Results 91 to 100 of about 106,164 (292)

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai, Yefeng Yang, Tao Huang, Boyang Li   +3 more
wiley   +1 more source

Active FEL-Klystrons as Formers of Femto-Second Clusters of Electromagnetic Field. Nonlinear Physics of the Transit Section [PDF]

Журнал нано- та електронної фізики, 2012
The classification and the kinematic analysis of parametrical resonant interactions in the transit section of two-stream superheterodyne free electron laser are carried out.
V.V. Kulish, A.V. Lysenko, A.Ju. Brusnik   +2 more
doaj  

Theory of spiral wave dynamics in weakly excitable media: asymptotic reduction to a kinematic model and applications

, 1999
In a weakly excitable medium, characterized by a large threshold stimulus, the free end of an isolated broken plane wave (wave tip) can either rotate (steadily or unsteadily) around a large excitable core, thereby producing a spiral pattern, or retract ...
A. Belmonte, A. Belmonte, A. Karma, A. Karma, A. Karma, A. Karma, A. M. Pertsov, A. P. Muñuzuri, A. S. Mikhailov, A. T. Winfree, A. T. Winfree, A. T. Winfree, Alain Karma, B. Vasiev, C. Henze, D. A. Kessler, D. A. Kessler, D. Barkley, D. Barkley, D. Barkley, D. Barkley, E. Lugosi, F. Fenton, F. Fenton, F. Siegert, G. Li, G. S. Skinner, I. Aranson, I. Mitkov, I. Mitkov, J. J. Tyson, J. J. Tyson, J. Nagumo, J. P. Keener, K. I. Agladze, K. I. Agladze, O. Steinbock, O. Steinbock, P. C. Fife, P. Pelce, P. Pelce, R. FitzHugh, S. Jakubith, T. Plesser, V. Hakim, V. Krinsky, V. N. Biktashev, V. N. Biktashev, V. S. Zykov, V. S. Zykov, Vincent Hakim, W. F. Loomis, W. Jahnke, W. K. Burton   +53 more
core   +1 more source

A Novel Parameter Estimation Method for Pneumatic Soft Hand Control Applying Logarithmic Decrement for Pseudo‐Rigid Body Modeling

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
In this research, a paradigm of parameter estimation method for pneumatic soft hand control is proposed. The method includes the following: 1) sampling harmonic damping waves, 2) applying pseudo‐rigid body modeling and the logarithmic decrement method, and 3) deriving position and force control.
Haiyun Zhang, Kelvin HoLam Heung, Gabrielle J. Naquila, Ashwin Hingwe, Ashish D. Deshpande   +4 more
wiley   +1 more source

Wearable Metamaterials with Embodied Intelligence for Programmable Control of Human Limbs Tremor

Advanced Intelligent Systems, EarlyView.
Resulting from alternating muscle contractions, tremors can severely limit human ability to perform everyday tasks like walking or talking, due to their disruptive nature. Medication and surgery may not always effectively address tremor control. A wearable device embodying programmable smart metamaterials with adaptable intelligence to meet the demand ...
Braion Barbosa de Moura, Marcela R. Machado, Tanmoy Mukhopadhyay   +2 more
wiley   +1 more source

Precision planter monitoring system based on mobile communication network

IET Networks, EarlyView., 2022
Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley   +1 more source

From Origami to Bistable and Laminate Structures: A Review for Multifunctional Applications from Structural Perspective of Shape‐Changing Structures

Advanced Intelligent Systems, EarlyView.
This review explores how shape‐changing structures—origami, bistable, and laminate structures—enable multifunctionality in soft robotics and metamaterials. Starting from structural design, it examines core principles, real‐world applications, and ongoing challenges.
Lingchen Kong, Yaoyao Fiona Zhao
wiley   +1 more source

Shape‐Memory Alloy Torsion Strips for Soft Robotic Manipulation and Morphing

Advanced Intelligent Systems, EarlyView.
In this research, a dedicated configuration of SMA strip is proposed for soft robotic manipulation and morphing. This configuration has broad application prospects and demonstrates remarkable advantages in soft body joint operations. Mimicking invertebrates, soft robots tend to control each of their body joints to achieve the desired shape changes and ...
Changchun Wu, Hao Liu, Senyuan Lin, Yunquan Li, James Lam, Ning Xi, Yonghua Chen   +6 more
wiley   +1 more source

Lattice Boltzmann model approximated with finite difference expressions

, 2017
We show that the asymptotic properties of the link-wise artificial compressibility method are not compatible with a correct approximation of fluid properties.
Dubois, François, Lallemand, Pierre, Obrecht, Christian, Tekitek, Mohamed   +3 more
core   +3 more sources

A Review of Trans‐Dimensional Kirigami: From Compliant Mechanism to Multifunctional Robot

Advanced Intelligent Systems, EarlyView.
This review outlines recent advancements in the geometric design and mechanical properties of kirigami. The kirigami is classified into two categories from a compliant mechanism perspective, highlighting their applications in metamaterials and robotic systems. Finally, the future research directions, is explored focusing on the potential of integrating
Yang Yu, Jinyao Zhang, Dengchen Wang, Yanqi Yin, Yehui Wu, Ruiyu Bai, Jiaqiang Yao, Yupei Zhang, Jingwen Yin, Chao Tang, Alexey S. Fomin, Wenjie Sun, Chen Liu, Bo Li, Guimin Chen   +14 more
wiley   +1 more source