Results 141 to 150 of about 10,429,320 (302)

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee   +6 more
wiley   +1 more source

Control-based continuation for investigating nonlinear experiments [PDF]

open access: yes, 2010
This paper presents a systematic experimental study of two one-degree-of-freedom nonlinear devices using the newly introduced control-based continuation method by Sieber and Krauskopf [Nonlinear Dynamics 2008].
Mann, Bria, P, Barton, DAW, Burrow, SG
core  

Nonlinear Control Systems Simulation Using Spreadsheets

open access: yesSpreadsheets in Education, 2004
In this paper, a method for simulating nonlinear control systems using spreadsheets is presented. Various nonlinear blocks are simulated using graphics and cell formulas, and are generated by clicking on specially developed toolbar buttons.
Ali El-Hajj   +2 more
doaj  

Two-Layered Reward Reinforcement Learning in Humanoid Robot Motion Tracking

open access: yesMathematics
In reinforcement learning (RL), reward function design is critical to the learning efficiency and final performance of agents. However, in complex tasks such as humanoid motion tracking, traditional static weighted reward functions struggle to adapt to ...
Jiahong Xu, Zhiwei Zheng, Fangyuan Ren
doaj   +1 more source

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

open access: yesAdvanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang   +11 more
wiley   +1 more source

Enhancing the Reliability of Back-to-Back Converters in Small Wind Turbines: A Comprehensive Robust Stability Study of NL-PI Control Under Extreme Operating Gusts

open access: yesIEEE Open Journal of Power Electronics
The reliability of Wind Energy Conversion Systems (WECSs) is frequently limited by failures in Back-to-Back Power Converters (BTB-PCs), particularly within the Rotor-Side Converter (RSC) switches, which are subjected to electrical and thermal stresses ...
Efrain Duenas-Reyes   +4 more
doaj   +1 more source

Anti-Disturbance Compensation-Based Nonlinear Control for a Class of MIMO Uncertain Nonlinear Systems. [PDF]

open access: yesEntropy (Basel), 2021
Abdul-Adheem WR   +7 more
europepmc   +1 more source

Bio‐Derived Polyelectrolyte Additive–Induced Interfacial Ion‐Diffusion Barriers for Nonvolatile Organic Artificial Synapses

open access: yesAdvanced Functional Materials, EarlyView.
Sodium alginate regulates interfacial ion transport and retention in electrolyte‐gated synaptic transistors. The carboxylate‐rich polymeric network forms a dynamic interfacial ion‐diffusion barrier that facilitates ion injection during programming while suppressing ion back‐diffusion, thereby stabilizing the electrochemically doped channel state.
Chaeyeon Han   +6 more
wiley   +1 more source

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