Results 111 to 120 of about 1,655,438 (284)

A Treatise on the Taxonomy of Reconfigurable Intelligent Surfaces

IEEE Open Journal of the Communications Society
This work presents a comprehensive taxonomy of reconfigurable intelligent surfaces (RISs) across its many variants in a systematically-structured form. The taxonomy encapsulates the different RIS categories based on the RIS components, channel estimation
Sherif Adeshina Busari, Ifiok Otung, Savas Konur, Raed Abd-Alhameed   +3 more
doaj   +1 more source

Magnetically Actuated Microrobot for Drug Delivery: Current Progress and Challenges

Advanced Robotics Research, EarlyView.
Magnetically actuated microrobots are reshaping targeted drug delivery through wireless propulsion, programmable materials, and localized therapeutic release. This review examines how fabrication, body material selection, structural architecture, loading mechanisms, and imaging‐guided control converge to enable microrobotic therapies while identifying ...
Yang Yang, David J. Cappelleri
wiley   +1 more source

Design and validation of scalable reconfigurable intelligent surfaces

Computer Networks
In this paper, we share our experience in designing, prototyping, and empirically characterizing RF Switch-based Reconfigurable Intelligent Surfaces (RIS). Our RIS design consists of arrays of patch antennas, delay lines, and programmable radio-frequency (RF) switches, enabling 3D beamforming passively, without active RF components.
Rossanese, Marco, Garcia-Saavedra, Andres, Mursia, Placido, Sciancalepore, Vincenzo, Asadi, Arash, Costa-Perez, Xavier   +5 more
openaire   +3 more sources

Ferroelectric Devices for In‐Memory and In‐Sensor Computing

Advanced Science, EarlyView.
Inspired by biological systems, in‐memory and in‐sensor computing overcome von Neumann bottlenecks. Ferroelectric devices can mimic synaptic functions and sense stimuli like light or force, therefore are ideal for these paradigms. This review introduces the ferroelectric devices applied for in‐memory and in‐sensor computing, covering their structures ...
Hong Fang, Ronghuan Xie, Qiang Cao, Shishen Yan, Xiaolin Wang, Limei Zheng   +5 more
wiley   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

Advanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung, Gwang Ya Kim, Sejin Kim, Hyunjong Seo, Se Gi Lee, Sang Min Won, Dongjoon Rhee, Joohoon Kang   +7 more
wiley   +1 more source

Accurate Scattering and Circuit Characterization of Reconfigurable Intelligent Surfaces

IEEE Access
A reconfigurable intelligent surface (RIS) has emerged as a promising technology for future wireless systems, and its accurate characterization is essential for the design and optimization of RIS-based systems.
Zaed S. A. Abdulwali, Majeed A. S. Alkanhal   +1 more
doaj   +1 more source

A Review of Phase-Change Materials and Their Potential for Reconfigurable Intelligent Surfaces. [PDF]

Micromachines (Basel), 2023
Matos R, Pala N.
europepmc   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Physical-Layer Security with Irregular Reconfigurable Intelligent Surfaces for 6G Networks. [PDF]

Sensors (Basel), 2023
Frimpong EO, Oh BH, Kim T, Bang I.
europepmc   +1 more source