Results 131 to 140 of about 93,145 (342)

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

Advanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena, Marco Bianco, Barbara Spagnolo, Muhammad Fayyaz Kashif, Alberto Bramati, Massimo De Vittorio, Ferruccio Pisanello   +6 more
wiley   +1 more source

Study on Compound Control Strategy of Dual-Transistor Forward Swiss Rectifier Under Grid Voltage Unbalance

Journal of Control Science and Engineering
The dual-transistor forward Swiss rectifier encounters operational challenges under grid voltage imbalance conditions, where negative sequence voltage components induce DC bus voltage fluctuations and amplify AC input current harmonics, thereby ...
Zhun Cheng, Xu Zhang, Wanchuan Zhou, Bing Luo, Yang Zhang   +4 more
doaj   +1 more source

Virtual Dynamic Vibration Absorber Trap Fusion Active Vibration Suppression Algorithm Based on Inertial Actuators for Large Flexible Space Trusses

Aerospace
This paper presents a virtual dynamic vibration absorber (DVA) trap fusion active vibration suppression algorithm based on inertial actuators as a solution to the harmonic vibration control problem of large flexible space trusses.
Chao Qin, Anpeng Xu, Shuai He, Chunyang Han, Zhenbang Xu   +4 more
doaj   +1 more source

The Coupling of Ferroelectric Polarization and Oxygen Vacancy Migration Enables Electrically Controlled Thermal Memories

Advanced Materials, EarlyView.
Ferroelectric Hf0.5Zr0.5O2 epitaxial thin films exhibit a non‐volatile, electrically controlled thermal conductivity enabled by the coupling between oxygen vacancy migration, acting as phonon scatterers, and ferroelectric polarization, acting as ion migration valve.
Dídac Barneo, Miquel Royo, Rafael Ramos, Jesús Carrete, Hugo Romero‐Bernad, Ricardo Jiménez, Víctor Leborán, César Magén, Noa Varela‐Domínguez, Miguel Algueró, Riccardo Rurali, José A. Pardo, Francisco Rivadulla, Eric Langenberg   +13 more
wiley   +1 more source

A novel second harmonic disturbance suppression method for islanded hybrid AC/DC microgrid clusters under asymmetric AC side fault

International Journal of Electrical Power & Energy Systems
In this paper, a novel second harmonic disturbance suppression method for islanded hybrid AC/DC microgrid clusters under asymmetric AC side fault is proposed.
Xiaoguang Wei, Song Li, Yunhai Shan, Hui Du, Taosha Jiang, Jie Zhang, Yixuan Wang   +6 more
doaj   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Grid-Connected Harmonic Suppression Strategy Considering Phase-Locked Loop Phase-Locking Error Under Asymmetrical Faults

Energies
Harmonic distortion caused by phase jumps in the phase-locked loop (PLL) during asymmetric faults poses a significant threat to the secure operation of renewable energy grid-connected systems.
Yanjiu Zhang, Shuxin Tian
doaj   +1 more source

Simple method to suppress n = −2 harmonic for periodic leaky-wave antennas with open-stopband suppression [PDF]

, 2023
Siyuan Lei, Gao Wei, Kangkang Han, Min Wang   +3 more
openalex   +1 more source

Enabling Real‐Time, Non‐Ionizing 3D Imaging of Implantable Magnetic Cements Using Magnetic Particle Imaging

Advanced Materials Interfaces, EarlyView.
This study reports the first implantable resin cement capable of orientation‐sensitive Magnetic Particle Imaging (MPI). By coating the cement with an ultrathin iron film, the authors achieve a strong, angle‐dependent MPI signal that enables non‐ionizing, real‐time tracking of both implant position and orientation, opening new possibilities for safe ...
Gabriel C. Pinto, João M. Costa, Simão P. Fernandes, Gabriela F. Resende, Eduardo T. C. Coimbra, Patrick Vogel, Mariana B. Oliveira, Marco Giardiello, Ricardo M. Silva, Armando A.C.S. Lourenço, Nuno J. O. Silva   +10 more
wiley   +1 more source

AC magnetometry with active stabilization and harmonic suppression for magnetic nanoparticle spectroscopy and thermometry. [PDF]

J Appl Phys, 2020
Bui TQ, Tew WL, Woods SI.
europepmc   +1 more source