Results 101 to 110 of about 1,029,298 (227)

Improved Adaptive Sliding Mode Control Using Quasi-Convex Functions and Neural Network-Assisted Time-Delay Estimation for Robotic Manipulators

Sensors
This study presents an adaptive sliding mode control strategy tailored for robotic manipulators, featuring a quasi-convex function-based control gain and a time-delay estimation (TDE) enhanced by neural networks.
Jin Woong Lee, Jae Min Rho, Sun Gene Park, Hyuk Mo An, Minhyuk Kim, Seok Young Lee   +5 more
doaj   +1 more source

Ultimate Boundedness of Stochastic Neural Networks with Delays

, 2011
Although ultimate boundedness of several classes of neural networks with constant delays was studied by some researchers, the inherent randomness associated with signal transmission was not taken account into these networks. At present, few authors study
Li Wan, Qing Hua Zhou
core   +1 more source

Advanced MXene‐Based Multifunctional Nanoarchitecture Materials Engineered for Adsorptive Cleanup of Hazardous Radioactive Pollutants: A Comprehensive Critical Review

Advanced Materials Interfaces, EarlyView.
This work critically reviews MXenes as highly effective multifunctional nanomaterials for the adsorption of radio‐contaminants, demonstrating a remarkable adsorption capacity of up to 1376.75 mg/g and cyclic stability of 2–8 cycles, with complexation, electrostatic interactions, and the numerical strength of MXene active sites playing a key operational
Stephen Sunday Emmanuel, Shepherd M. Tichapondwa   +1 more
wiley   +1 more source

ESO-Enhanced Actor–Critic Reinforcement Learning-Optimised Trajectory Tracking Control for 3-DOF Marine Vessels

Mathematics
This paper develops an extended-state-observer (ESO)-enhanced actor–critic reinforcement learning (RL) scheme for the trajectory tracking control of 3-DOF marine vessels subject to uncertain hydrodynamics and environmental disturbances.
Xiaoling Liang, Jiajian Li
doaj   +1 more source

Ultimate boundedness stability and controllability of hereditary systems [PDF]

, 1979
By generalizing the Liapunov-Yoshizawa techniques, necessary and sufficient conditions are given for uniform boundedness and uniform ultimate boundedness of a rather general class of nonlinear differential equations of neutral type.
Chukwu, E. N.
core  

Thermoplastic Dielectric Coatings for Flexible Electrodynamic Dust Shields: Structural and Functional Performance

Advanced Materials Interfaces, EarlyView.
Thermoplastic attachment is introduced as a scalable surface coating strategy to improve the durability and dielectric reliability of flexible electrodynamic dust shields. By embedding chemically modified reduced graphene oxide (CMrGO) electrodes within thermoplastic laminates, mechanical degradation, abrasion damage, and vacuum‐induced electrical ...
Ide E. Onal, Emily A. Ryan, Luca Scifoni, Thomas M. Orlando, Álvaro Romero‐Calvo, Julie S. Linsey, Meisha L. Shofner   +6 more
wiley   +1 more source

Robust Adaptive Synchronization of Uncertain 4-D Memristive Hyperchaotic Systems via a Recurrent Wavelet Cerebellar Brain Controller

Mathematics
This paper presents a recurrent wavelet cerebellar brain controller (RWCBC) for synchronizing uncertain 4-D memristive hyper-chaotic master-slave systems affected by nonlinear uncertainty, memory-dependent dynamics, and bounded external disturbances. The
Van-Tan Do, Le Thi Minh Tam, Duc Hung Pham, Thi Tuoi Phan, V. T. Mai, Anh Tuan Phan   +5 more
doaj   +1 more source

Atomistic Insights into Gradient Architecture Driven Strengthening in Additively Manufactured Cu–Ni Stepwise Graded Structures

Advanced Materials Interfaces, EarlyView.
Atomistic simulations reveal the interlayer mechanics of additively manufactured materials, showing how build direction and layer interfaces govern diffusion, defect evolution, and mechanical strength. Distinct anisotropic behavior arises from interface‐controlled deformation and dislocation activity, establishing critical links between microstructural
Rohit Singh, Jinoop Arackal Narayanan
wiley   +1 more source

Three-Dimensional Trajectory Tracking for Underactuated Quadrotor-like Autonomous Underwater Vehicles Subject to Input Saturation

Journal of Marine Science and Engineering
This paper focuses on the design of a three-dimensional trajectory tracking controller for underactuated quadrotor-like autonomous underwater vehicles (QAUVs) subject to actuator saturation.
Chunchun Cheng, Xing Han, Pengfei Xu, Yi Huang, Liwei Kou, Yang Ou   +5 more
doaj   +1 more source

Advanced Manufacturing of Composite‐Based Systems for Energy Applications

Advanced Materials Technologies, EarlyView.
Advanced manufacturing enables the integration of polymers, ceramics, metal oxides, and composites into architected microstructures with tailored transport pathways. By coupling material selection, manufacturing strategy, and structural design, multifunctional energy systems can simultaneously improve electrochemical performance, thermal management ...
Sri Vaishnavi Thummalapalli, Dhanush Patil, Libin Yang, M. Taylor Sobczak, Anshul Kulkarni, Xiao Sun, Arunachalam Ramanathan, Tiantian Li, Ramaraja P. Ramasamy, Jason J. Locklin, Yanyu Chen, Xianqiao Wang, Arunachala Mada Kannan, Kenan Song   +13 more
wiley   +1 more source