Results 71 to 80 of about 1,655,438 (284)

Reconfigurable Intelligent Surfaces in Action for Nonterrestrial Networks

IEEE Vehicular Technology Magazine, 2022
to appear in IEEE Vehicular Technology ...
Kürsat Tekbiyik, Günes Karabulut-Kurt, Ali Riza Ekti, Halim Yanikomeroglu   +3 more
openaire   +2 more sources

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

RIS Assisted Anti-Jamming in Next-Generation Wireless Communication Networks: A Survey of Threats, Solutions, and Research Challenges

IEEE Open Journal of the Communications Society
Rapid growth in wireless data traffic and the increasing demand for secure, low-latency communication have driven research toward next-generation (6G) technology, which aims to provide ubiquitous, secure wireless connectivity.
Zain Ul Abideen Tariq, Emna Baccour, Aiman Erbad, Mounir Hamdi   +3 more
doaj   +1 more source

A Review of Metasurfaces for Microwave Energy Transmission and Harvesting in Wireless Powered Networks

IEEE Access, 2021
Wireless energy transmission and harvesting techniques have recently emerged as attractive solutions to realize wireless powered networks. By eliminating fundamental power constraints arising from the use of conventionally battery sources, wireless modes
Akaa Agbaeze Eteng, Hui Hwang Goh, Sharul Kamal Abdul Rahim, Akram Alomainy   +3 more
doaj   +1 more source

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

Advanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski, Higgins M. Wilson, Abdallah Y. M. Ali, Jiaxing Xu, Ruzhu Wang, Primož Poredoš   +5 more
wiley   +1 more source

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

Advanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu, Hao Jiang, Xingsi Liu, Fakun Wang, Yang Peng, Qi Jie Wang, Weibo Gao, Xingzhan Wei, Cheng‐Wei Qiu   +8 more
wiley   +1 more source

Compressed-Sensing-Based 3D Localization with Distributed Passive Reconfigurable Intelligent Surfaces [Elektronisk resurs]

, 2023
In this paper, the programmable signal propagation paradigm, enabled by Reconfigurable Intelligent Surfaces (RISs), is exploited for high accuracy 3-Dimensional (3D) user localization with a single multi-antenna base station.
Fakhreddine, Aymen,, Alexandropoulos, G. C.,, He, Jiguang,, Wymeersch, Henk,   +3 more
core   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

Advanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera, Zohar Eyal, Yael Noy, Yuval Barzilay, Siddharth Sahoo, Srikant Moharana, Avi Baram, Tali Lerer‐Goldshtein, Neta Varsano, Bar Bader, Lothar Houben, Uwe Heinig, Iddo Pinkas, Moshe Goldsmith, Tamar Unger, Shira Albeck, Andrea Sorrentino, Maxim Itkin, Sergey Malitsky, Ziv Porat, Ido Hadar, Venkata Jayasurya Yallapragada, Dvir Gur   +22 more
wiley   +1 more source

Reconfigurable Intelligent Surfaces Between the Reality and Imagination

Wasit Journal of Computer and Mathematics Science
One interesting idea that could improve wireless communication systems is reconfigurable intelligent surfaces or RIS. To control the spread of wireless signals, RIS uses a plethora of tiny, inexpensive, and customizable reflecting devices.
Asst. Prof. Haider ALRikabi, Adheed Sallomi, Hasan Khazaal, Ahmed Magdy, Iryna Svyd, IVAN OBOD   +5 more
doaj   +1 more source

Intelligent-Meta-Surfaces-Aided Wireless Communications in 6G

, 2022
Intelligent-Meta-Surfaces-Aided Wireless Communications in ...
Jinho Choi (13076106), M Nemati (14447145)   +1 more
core