Results 91 to 100 of about 82,151 (249)

Sustainable Poly(Lactic Acid)/Graphene Oxide Bioelectronic Platform for Neurotransmitters Sensing and Tunable Stimulation of Astrocytes

Advanced Materials, EarlyView.
This work introduces sustainable PLA/graphene oxide bioelectronic interfaces featuring electrodes with tunable conductivity and strong electrocatalytic performance. These platforms were used to implement a new method for tuning astrocyte Ca2+ signaling and for the efficient detection of key biomarkers.
Alessandra Scidà, Giulia Cazzador, Roberta Fabbri, Matteo Calosi, Alessandro Silvestri, Andrea Candini, Fabiola Liscio, Franco Corticelli, Aikaterini Konstantoulaki, Andrea D'Iorio, Marco Caprini, Vincenzo Palermo, Monica Bertoldo, Valentina Benfenati, Chiara Zanardi, Emanuele Treossi   +15 more
wiley   +1 more source

Review on Development and Research of Underwater Capacitive Power Transfer

Energies
Wireless power transfer (WPT) technology applied to underwater environments has the advantages of no electrical contact, high safety, and high applicability.
Ying Liu, Binghe Li, Liangyi Pan, Shunyu Yao, Zhutao Dong, Jiantao Zhang, Chunbo Zhu, Shumei Cui   +7 more
doaj   +1 more source

Confinement‐Induced Donnan Potential Enables Sealed Hydrovoltaic Power From Microliter Water

Advanced Materials, EarlyView.
An ultrathin MXene/cellulose nanofiber (CNF) nanochannel‐based hydrovoltaic generator produces sustained direct current (DC) from a single microliter droplet under sealed operation. Asymmetric nanochannel confinement establishes a persistent ion gradient and a confinement‐induced Donnan potential, harvesting the interfacial free energy released upon ...
Sangyun Na, Geonyoung Jung, Yoojin Chang, Yun Goo Ro, Cheolhong Park, Jeonghee Yeom, Jinyoung Kim, Jeeyoon Kim, Hyejin Lee, Hyeji Oh, Hyunhyub Ko   +10 more
wiley   +1 more source

Three-Phase High Power Underwater Capacitive Wireless Power Transfer System for Autonomous Underwater Vehicles

Journal of Marine Science and Engineering
This paper proposes a 1000 W high-frequency three-phase power inversion underwater capacitive wireless power transfer (UCWPT) system for power delivery to autonomous underwater vehicles (AUVs). The multi-phase coupling structure is designed as a columnar
Lei Yang, Liye Tian, Xinze Chen, Zhixue Bu, Dengrui Xing, Aimin Zhang, Xiangqian Tong   +6 more
doaj   +1 more source

Capacitive power transfer system and method for controlling capacitive power transfer system

, 2021
The present disclosure relates to a capacitive power transfer system comprising: a DC power source providing an input DC supply voltage; an inverter configured to convert the DC supply voltage into an AC power; a capacitive coupler configured to transfer
Dou, Yi, Chen, Xu, Ouyang, Ziwei
core  

Volatile Memristive Devices With Tunable Temporal Dynamics For Event‐Based Sensing

Advanced Materials, EarlyView.
Tunable volatile memristive devices can serve various neural‐inspired tasks that require different time windows of information retention. The ionic‐based volatility of the presented Pt/a‐STO/TaOx/Ta device stack can be reproducibly and controllably tuned in multiple ways.
Dimitrios Spithouris, Johannes Hellwig, Hugh Greatorex, Clemens Wittberg, Panagiotis Koutsogiannis, César Magén, Elisabetta Chicca, Regina Dittmann   +7 more
wiley   +1 more source

A Low-Power Capacitive Wireless Power Transfer System With Autonomous Misalignment Correction Using Array Electrodes

IEEE Access
Capacitive wireless power transfer (CPT) systems are highly sensitive to coupling misalignment because variations in electrode alignment directly change the coupling capacitance and disturb the resonant condition, resulting in a degraded output power and
Taehwan Kim, Jaeyoung Jung, Jae-Ho Han, Kwang-Seok Yun   +3 more
doaj   +1 more source

Dynamic Electrophoretic Assembly Coupled With Water‐Splitting‐Induced pH Control Enables Precision Ion Sieving Membranes

Advanced Materials, EarlyView.
A green, external‐catalyst‐free route grows defect‐free covalent organic framework membranes directly on ion‐exchange supports using an alternating electric field and in situ‐generated acid. Through a self‐regulating, self‐healing mechanism, the membranes achieve near‐complete, ultra‐fast separation of monovalent ions such as Li+, Na+, and K+, offering
Mohammad Hossein Jandaghian, Petric Marc Ruya, Ipek Ozyurt, Ali Atyabi, Samuel Eyley, Wim Thielemans, Alexander Volodin, Riccardo Alessandri, Xing Yang   +8 more
wiley   +1 more source

Overview of Electromagnetic Interference Mechanisms and System-Level Effects in MHz-Range Wireless Charging for Electric Vehicle Applications

Sensors
Wireless power transfer (WPT) systems for electric vehicles (EVs) are increasingly being studied in the MHz range to increase power density and reduce the size of passive components.
Kirill Nefjodov, Mahmoud Ibrahim, Anton Rassõlkin   +2 more
doaj   +1 more source

Quasi-Lumped Element Quadrature Coupler Design

, 1989
In this paper synthesis equations for a type of directional coupler that employs both distributed and lumped elements with phase quadrature characteristics are developed This configuration will be referred to as the quasi-lumped coupler.
O'Caireallain, S.B.D., V. F. Fusco, Fusco, V. F. ; id_orcid, S. B. D. O'Calreallain   +3 more
core   +1 more source