Results 41 to 50 of about 351,550 (291)

Life‐Like Ferrous Oxide Microspheres from Kombucha

Advanced Materials Interfaces, EarlyView.
Kombucha bacterial cellulose, sodium alginate, and ferrous nitrate self‐assemble into membrane‐enclosed iron oxide microspheres. These microspheres bud daughter vesicles, sustain 24‐h electrochemical oscillations, and filter theta‐band signals.
Panagiotis Mougkogiannis, Anna Nikolaidou, Andrew Adamatzky   +2 more
wiley   +1 more source

The Wideband Oscillatory Localization Method Based on Combining Compressed Sensing and Graph Attention Networks

Energies
Due to the increasing integration of new energy sources, the power system now exhibits low inertia, in which the broadband oscillation problem is increasingly significant in the face of the strong coupling of complex and variable power systems, and the ...
Jinggeng Gao, Yong Yang, Honglei Xu, Yingzhou Xie, Chen Zhou, Haiying Dong   +5 more
doaj   +1 more source

Skin‐Like Tri‐Modal Sensors Based on Soft Piezoelectric and Ionic Composites

Advanced Materials Technologies, EarlyView.
Inspired by the multimodal perception of human skin, a soft, skin‐like tri‐modal sensor is presented. The device incorporates an ionically conductive, piezoelectric, elastic composite as its active layer, enabling independent detection of temperature, static strain, and dynamic strain within a single two‐terminal architecture.
Liren Wang, Peter Zalar, Vishva Bhate, Takeo Furukawa, Hidekazu Kodama, Yijun Liu, Yuanyuan Zhou, Chuang Hou, Siyuan Liu, Naoji Matsuhisa   +9 more
wiley   +1 more source

An improved ADRC strategy and its parameter tuning for broadband oscillation suppression of direct-drive wind turbine

电力工程技术
An improved active disturbance rejection controller (ADRC) suppression strategy is proposed to address the problem of broadband oscillation between the direct-drive wind turbine and the weak AC power grid.
Xintong YU, Jiahui WU, Guodong LI
doaj   +1 more source

Analysis of Wideband Oscillation Mechanism and Suppression Technology Based on C-Type Damping Filter

Energies
Based on the dilemma of analyzing the resonance stability of AC power grids using impedance models, it is demonstrated that the “negative resistance” mechanism of wideband oscillation is untenable. A general method for describing power electronic devices
Zheng Xu
doaj   +1 more source

Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes

Advanced Optical Materials, EarlyView.
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco, Daniele Ceneda, Matteo Barelli, Matteo Gardella, Rajesh Chennuboina, Maria C. Giordano, Marco Centini, Francesco Buatier de Mongeot   +7 more
wiley   +1 more source

Metabolic Connectivity and Hemodynamic-Metabolic Coherence of Human Prefrontal Cortex at Rest and Post Photobiomodulation Assessed by Dual-Channel Broadband NIRS

Metabolites, 2022
Billions of neurons in the human brain form neural networks with oscillation rhythms. Infra-slow oscillation (ISO) presents three main physiological sources: endogenic, neurogenic, and myogenic vasomotions.
Xinlong Wang, Liang-Chieh Ma, Sadra Shahdadian, Anqi Wu, Nghi Cong Dung Truong, Hanli Liu   +5 more
doaj   +1 more source

Controlling Polystyrene Particle Distribution in Colloidal Lithography For Correlated‐Disorder Structures

Advanced Optical Materials, EarlyView.
Colloidal lithography is a low‐cost, simple and scalable technique to fabricate correlated‐disorder nanostructures for light‐trapping in solar cells. This work investigates the control of polystyrene particle distribution in colloidal lithography, highlighting the importance of particle surface functionalization as well as the ability to tune the ...
Laura de Almeida, Jean‐Baptiste Doucet, Mathieu Arribat, Guilhem Almuneau, Stéphane Collin, Inès Revol   +5 more
wiley   +1 more source

Multi-terminal Heterogeneous Generalized Impedance Modeling and Analysis of MMC-MTDC Transmission Systems

Zhongguo dianli
The prominent risks of broadband oscillation among renewable energy, modular multilevel converter-based multi-terminal high voltage direct current (MMC-MTDC) and AC grid severely constrain the safe and stable operation and efficient accommodation of ...
Guoliang ZHOU, Liping GAO, Yanqiao LIANG, Wenjin LI, Xin WANG   +4 more
doaj   +1 more source

Investigation of a low frequency coherent mode in Wendelstein 7-X with island divertor

Nuclear Fusion, 2023
During the island divertor operation of W7-X, especially in standard magnetic configuration (with 5/5 island chain in the scrape-off-layer (SOL)), quasi-periodic electromagnetic oscillation is observed.
H.M. Xiang, A. Krämer-Flecken, X. Han, T. Windisch, G. Weir, K. Rahbarnia, J. Schilling, H. Thomsen, S.vaz Mendes, A. Knieps, M. Vécsei, M. Otte, S. Zoletnik, G. Anda, D. Dunai, D. Zhang, P. Kornejew, J. Huang, T. Zhang, X.D. Lin, X. Gao, Y. Liang, the W7-X team   +22 more
doaj   +1 more source