Results 51 to 60 of about 7,852 (255)

Bio‐Derived Polyelectrolyte Additive–Induced Interfacial Ion‐Diffusion Barriers for Nonvolatile Organic Artificial Synapses

Advanced Functional Materials, EarlyView.
Sodium alginate regulates interfacial ion transport and retention in electrolyte‐gated synaptic transistors. The carboxylate‐rich polymeric network forms a dynamic interfacial ion‐diffusion barrier that facilitates ion injection during programming while suppressing ion back‐diffusion, thereby stabilizing the electrochemically doped channel state.
Chaeyeon Han, Donghwa Lee, Hyeonse Kim, Hyoik Jang, Sein Chung, Geun Yeol Bae, Eunho Lee   +6 more
wiley   +1 more source

Theoretical Investigation of the Passive Transmitter Based on Reconfigurable Metasurface

Frontiers in Physics, 2021
Wireless communication has become a standard solution to satisfy the ever-increasing demands of information transfer in our daily life. Furthermore, reconfigurable metasurfaces comprised of multiple tunable unitcells have drawn significant attention due ...
Shuai Yang, Kuang Zhang, Xumin Ding, Guohui Yang, Qun Wu   +4 more
doaj   +1 more source

Silicone Phase Behavior Resolves the Softness–Surface Functionality Trade‐Off in Emerging Stretchable Electronics

Advanced Functional Materials, EarlyView.
Ultrasoft silicone elastomers often sacrifice surface functionality for mechanical compliance. In Mold Star, low‐molecular‐weight species form a dispersed phase that weakens the network and passivates the surface. Solvent extraction removes this phase, unexpectedly improving both extensibility and metallization performance, enabling conductive ...
Gloria M. D'Amaral, Rahaf Nafez Hussein, Tiago Carneiro Gomes, Jordan E. Nicholson, Lauren J. Renaud, Emily J. Addison, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +7 more
wiley   +1 more source

Reconfigurable super‐low‐frequency magnetoelectric antenna for underwater frequency‐hopping communication

IET Microwaves, Antennas & Propagation
Based on the mechanical regulation mechanism, a super‐low‐frequency (SLF) reconfigurable magnetoelectric (ME) antenna is proposed for underwater frequency‐hopping communication.
Shi‐Yu Wang, Gao‐Qi Dou, Da Yi, Shi‐Min Feng, Ming‐Chun Tang   +4 more
doaj   +1 more source

Frequency Reconfigurable MIMO antenna: Previous advancements [PDF]

EPJ Web of Conferences
This paper presents a comparative study of six recent publications on frequency-reconfigurable MIMO antennas for wireless communications, covering works published between 2019 and 2023.
Errachidi Adnane, Zakriti Alia, Dkiouak Aziz   +2 more
doaj   +1 more source

Reconfigurable antennas: quantifying payoffs for pattern, frequency, and polarisation reconfiguration

IET Microwaves, Antennas & Propagation, 2019
The authors map the differences between various reconfigurable antennas and present a payoff metric for each type. They evaluate three distinct schemes of reconfiguration: pattern, frequency, and polarisation. They show that the often neglected losses play a pivotal role in the effectiveness of reconfigurable systems.
Behnam Ghassemiparvin, Nima Ghalichechian   +1 more
openaire   +1 more source

A Conformal and Transparent Frequency Reconfigurable Water Antenna

2022 16th European Conference on Antennas and Propagation (EuCAP), 2022
This paper presents a design of water-based flexible, optically transparent and frequency reconfigurable antenna having a unidirectional radiation pattern. The proposed antenna incorporates a dipole radiator on top of a reflector plane that makes the radiation unidirectional.
Sayem, Abu Sadat Md., Simorangkir, Roy B. V. B., Esselle, Karu P., Buckley, John L.   +3 more
openaire   +2 more sources

Increasing Inter‐Micellar Connectivity Toughens and Imparts Cooling‐Induced Shape Memory in Micellar Hydrogels

Advanced Functional Materials, EarlyView.
Oligomerizing Pluronic triblock copolymers provides a processing strategy for tuning the mechanical properties and stimuli‐responsive behaviors of micellar hydrogels. Varying oligomer fraction produces hydrogels spanning brittle to highly extensible responses; maintaining micellar architectures enables cooling‐induced reverse thermal shape memory and ...
Gourav Kumbhojkar, Eric Yang, Arman Moussavi, EunBi Oh, Haeji Kim, Wei Chen, Junsoo Kim, Sinan Keten, Ryan L. Truby   +8 more
wiley   +1 more source

Interaction‐Driven Assembly Pathways in Heterogeneous Active Microrobotic Systems

Advanced Functional Materials, EarlyView.
Peanut‐ and cube‐shaped light‐powered microrobots exhibit distinct magnetic and photocatalytic responses that determine their heterogeneous self‐assembly. In the dark, magnetic dipole interactions drive colloidal copolymerization with cubes acting as nucleation centers, whereas under light irradiation, phoretic interactions compete with magnetic ...
Domenico Calabrò, Roshan Velluvakandy, Martin Pumera, Francesco Priolo, Salvo Mirabella, Mario Urso   +5 more
wiley   +1 more source

Fully Reconfigurable Photonic Filter for Flexible Payloads

Applied Sciences
Reconfigurable photonic filters represent cutting-edge technology that enhances the capabilities of space payloads. These advanced devices harness the unique properties of light to deliver superior performance in signal processing, filtering, and ...
Annarita di Toma, Giuseppe Brunetti, Nabarun Saha, Caterina Ciminelli   +3 more
doaj   +1 more source