Results 141 to 150 of about 1,176,775 (247)

A hybrid VMD-CNN-autoencoder approach for speed-invariant fault detection of parallel and angular misalignment in rotating machinery. [PDF]

Sci Rep
Chandran N, Sathish Kumar K.
europepmc   +1 more source

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, Volume 43, Issue 7, Page 4382-4401, October 2026.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

Dataset of power, wind and acoustic measurements from wind tunnel tests on a small Savonius wind turbine. [PDF]

Sci Data
Pagnini L, Doerffer P, Grzelak J, Kotus J, Piccardo G, Repetto MP, Doerffer K.   +6 more
europepmc   +1 more source

Disentangling Molecular and Intrinsic Emission in Citric Acid–Urea Carbon Dots

Small Structures, Volume 7, Issue 10, October 2026.
Citric acid–urea thermal reactions under equimolar and urea‐rich conditions generate distinct fluorophore populations alongside carbon dots. Size‐exclusion chromatography reveals precursor‐dependent molecular species, whereas extended dialysis separates low‐molecular‐weight fluorophores from retained carbon dots. Despite the different synthetic regimes,
Chiara Olla, Jela Nociarová, Antonio Cappai, Luca Fusaro, Juraj Filo, Cristina Carucci, Andrea Salis, Marzia Fantauzzi, Markéta Paloncýová, Michal Otyepka, Miroslav Medved’, Francesca Mocci, Carlo Maria Carbonaro   +12 more
wiley   +1 more source

A thermophone-based FM sonar for airborne ultrasonic sensing under drone flight noise. [PDF]

Sci Rep
Yamada Y, Hasegawa K, Watabe Y, Sasaki S, Asada T, Hiryu S.   +5 more
europepmc   +1 more source

Enhanced Control of 1.5 MW DFIG Generators in MRWT Systems Using GA‐Based PI‐ST‐SMC: Comparative Assessment With ST‐SMC

Wind Energy, Volume 29, Issue 10, October 2026.
ABSTRACT This paper proposes a novel genetic algorithm‐based proportional–integral super‐twisting sliding mode control (GA‐PI‐ST‐SMC) strategy for the rotor‐side converter of a 1.5 MW doubly‐fed induction generator (DFIG) operating in marine renewable wind turbine (MRWT) systems.
Habib Benbouhenni, Nicu Bizon, Zakaria Mohamed Salem Elbarbary, Saad F. Al‐Gahtani   +3 more
wiley   +1 more source

A Novel Distributed Sensor Network to Assess Wind Turbine Blade Acoustics for Structural Health Monitoring

Wind Energy, Volume 29, Issue 10, October 2026.
ABSTRACT To reduce the need for scheduled wind turbine blade inspections and large‐scale repairs, a novel distributed acoustic sensing system for monitoring the structural health of wind turbine blades is proposed. This integral passive monitoring system utilizes a sparse array of in‐blade multimodal sensors and a single blade‐external downtower sensor,
Connor Pozzi, Calvin Ng, Sage Lyon, Yan Luo, Christopher Niezrecki, Murat Inalpolat   +5 more
wiley   +1 more source

Low-Speed Permanent Magnet Synchronous Motor Rotor Position Estimation Using Structural Vibration Modal Phase Carrier. [PDF]

Sensors (Basel)
Yu L, Yuan X, Ou J.
europepmc   +1 more source

Modelling Healthy Operations of Generator Bearings in Wind Farms

Wind Energy, Volume 29, Issue 10, October 2026.
ABSTRACT This study investigates the consistency and impact of feature selection methods on deterministic and probabilistic normal behaviour models (NBMs) for estimating rear generator bearing temperature in wind farms using SCADA data. Rigorous NBM development enables the transfer of key features, enhances anomaly detection comparability and ...
Daragh O'Connnor, Vikram Pakrashi, Bidisha Ghosh   +2 more
wiley   +1 more source

A Lightweight Zero-Trust-Based Authentication Framework for UAV Systems. [PDF]

Sensors (Basel)
Qu X, Ou W, Pang M, Chen Y, Wu Y, Yue Q, Han W.   +6 more
europepmc   +1 more source