Results 121 to 130 of about 13,287 (308)

Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping

Advanced Materials, EarlyView.
Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe, Lei Zhang, Yi Ning Zheng, Xiao Qing Chen, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Tie Jun Cui, Vincenzo Galdi   +8 more
wiley   +1 more source

Verification of the Filtration Efficiency of a Group of Single-Tuned Passive Harmonic Filters

Energies
Currently, the installation of distributed energy sources is growing rapidly, especially renewable sources, for which the goal is to increase energy self-sufficiency across certain parts of the distribution network.
Ryszard Klempka, Chamberlin Stéphane Azebaze Mboving   +1 more
doaj   +1 more source

Active Power Filters for Harmonic Elimination and Power Quality Improvement

, 2011
The explosive growth in consumer electronics and domestic appliances has generated a major concern in the electricity supply industry, (Bollen, 1999). Due to its interface circuit (a diode bridge, followed by a large DC capacitor), these appliances draw current only near the peak of the mains voltage.
Antonio Martins, Jose Ferreira, Helder Azevedo   +2 more
openaire   +2 more sources

Electrically Coded Retinomorphic Spectrophotodetector

Advanced Materials, EarlyView.
Self‐powered retinomorphic pyro‐photodetector is demonstrated that avoids machine‐learning post‐processing and covers 365–940 nm. Electrostatic balancing of built‐in potential produces an electrical wavelength code, delivering <3 nm wavelength decoding accuracy with ∼46 µs response.
Mohit Kumar, Hyunmin Dang, Hyungtak Seo
wiley   +1 more source

Harmonic State Estimation in Power Systems Using the Jaya Algorithm [PDF]

The increasing use of nonlinear loads in power systems introduces voltage and current components at non-fundamental frequencies, leading to harmonic distortion, which negatively impacts electrical and electronic devices.
Lucas Frizera Encarnação, Walace do Nascimento Sepulchro   +1 more
core   +1 more source

Flexible Wide Bandgap Electrode System for In situ Cell Sensing and Irreversible Electroporation

Advanced Materials Interfaces, EarlyView.
The paper reports the design and wafer‐level microfabrication of a long‐lived, flexible 3C‐SiC electrode capable of sensitive and in situ cell sensing, as well as electroporation ablation. The work demonstrates a biocompatible and durable electrode platform that can perform reliable electrical interfacing with biological tissues over extended periods ...
Minh Anh Huynh, Sharda Yadav, Tuan‐Khoa Nguyen, Nam‐Trung Nguyen   +3 more
wiley   +1 more source

Grid voltage sensorless control of a single‐phase shunt hybrid active power filter

IET Power Electronics
Here, a grid voltage sensorless control of an LCL‐filtered LC‐tuned single‐phase shunt hybrid active power filter (HAPF) is proposed, which offers high‐quality harmonic current compensation with low hardware requirements. An estimation algorithm replaces
Mohammad‐Sadegh Karbasforooshan, Mohammad Monfared   +1 more
doaj   +1 more source

Additive‐Manufactured, Multifunctional Bioreactor Technology for Dynamic Culture of 3D Bioprinted Tissue Models

Advanced Materials Technologies, EarlyView.
We introduce an additively manufactured bioreactor with a perfusion flow system and integrated temperature and pH sensors for skeletal muscle tissue biofabrication. The bioreactor's performance was evaluated by assessing the viability, spreading of the myoblast cells in a printed scaffold, and contraction of the isolated murine musculi interossei ...
Lys Sprenger, Johann Schorzmann, Hsuan‐Heng Lu, Muhammad Osama, Julian Bauer, Michael Haug, Oliver Friedrich, Aldo R. Boccaccini, Frank Döpper, Sahar Salehi   +9 more
wiley   +1 more source

Harmonic Analysis of Transmission Scheme for Offshore Wind Farms Based on Diode Rectifier Unit

Engineering Reports
The diode rectifier unit (DRU) based transmission scheme is the technology hotspot in the field of transmission scheme for offshore wind farms. DRU not only realizes the rectification but also brings harmonic problems to the system.
Qing Chen, Bin Lin, Xiaohe Wang, Peng Liang, Zheren Zhang   +4 more
doaj   +1 more source

The Evolution of Aerosol Jet Printing, A Review: Enhancing Material Versatility and Improvements for Next‐Generation Applications

Advanced Materials Technologies, EarlyView.
Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee, Rocco Lupoi, Michael J. Gibbons   +2 more
wiley   +1 more source