Results 111 to 120 of about 365,375 (316)

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

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

Nonlinear Control Strategies for an Autonomous Wing-In-Ground-Effect Vehicle. [PDF]

open access: yesSensors (Basel), 2021
Patria D   +3 more
europepmc   +1 more source

Demonstrating Vibrational Current Generation With a Self‐Assembled Bioelectret

open access: yesAdvanced Functional Materials, EarlyView.
Vacuum‐deposited films of the plant‐derived molecule, Baicalein, form a self‐assembled bioelectret exhibiting spontaneous orientation polarization and a giant surface potential. The films induce alternating current during the vibration of a movable electrode without charging treatments. Hydrocarbon protection enhances the air stability of the Baicalein
Kouki Akaike   +7 more
wiley   +1 more source

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  

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

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