Results 101 to 110 of about 128,085 (304)

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Multi-modal Non-line-of-sight Passive Imaging [PDF]

, 2018
We consider the non-line-of-sight (NLOS) imaging of an object using the light reflected off a diffusive wall. The wall scatters incident light such that a lens is no longer useful to form an image. Instead, we exploit the 4D spatial coherence function to
Alexandru Tamasan (14645159), George K. Atia (4180567), Andre Beckus (4180573)   +2 more
core   +1 more source

A speech-driven embodied entrainment character system for supporting line-of-sight interaction using an interaction-activated communication model

Nihon Kikai Gakkai ronbunshu, 2016
Line-of-sight such as gaze and eye-contract plays an important role to enhance the embodied interaction and communication through avatars. In addition, many eyeball movement models and communication systems using avatars with the line-of-sight have been ...
Yoshihiro SEJIMA, Koki ONO, Tomio WATANABE   +2 more
doaj   +1 more source

Neuromorphic Deep‐Ultraviolet Signal Processing Using a‐Ga2O3

Advanced Electronic Materials, EarlyView.
Amorphous gallium oxide (a‐Ga2O3) metal‐semiconductor‐metal photodetectors exhibit paired‐pulse facilitation arising from charge trapping. Four‐bit UVC binary sequences are encoded into separable conductance states. An RC equivalent circuit model of the device is deployed in single‐ and composite multi‐node reservoir computers, achieving ∼95% accuracy ...
Sidhant Sharma, Arthur Robert, Florian Wilke, Martin W. Allen, Valentina Baccetti, Jim G. Partridge, Hiep N. Tran   +6 more
wiley   +1 more source

Non-line-of-sight tracking of people at long range [PDF]

, 2017
Data relevant to publication "Non-line-of-sight tracking of people at long range", Optics Express ...
Warburton, Ryan E, Institute of Photonics and Quantum Sciences, Faccio, Daniele Franco Angelo, School of Engineering & Physical Sciences, Leach, Jonathan; id_orcid, Chan, Susan   +5 more
core   +1 more source

Redesigning Interlayers for Anode‐Free Batteries: Harnessing Continuity and Metal Inventory

Advanced Energy Materials, EarlyView.
Interlayers for anode‐free batteries must provide continuous interfacial coverage while remaining thin enough to preserve the finite cathode‐derived active‐metal inventory. This Perspective couples thin‐film closure with stoichiometric active‐metal consumption to reveal practical design windows across chemistry, substrate roughness, cathode loading ...
Rosalía Cid, Lorenzo Fallarino
wiley   +1 more source

Fading Duration in Line-of-sight Radio Links at 6 GHz

Journal of Telecommunications and Information Technology, 2013
Broadband fixed wireless access, local multipoint distribution service networks are promising wireless solutions to connect fixed users to the backbone network instead of wired copper or fiber optic networks, via point-to-multipoint cellular networks ...
Jan Bogucki, Ewa Wielowieyska
doaj   +1 more source

Import Wheat Tenders and the Effects of the Russian Invasion

Agribusiness, EarlyView.
ABSTRACT Risk and volatility for many commodities escalated sharply following the Russian invasion of Ukraine, creating numerous uncertainties for trading firms and importers. The purpose of this study is to analyze the bidding behavior in Egyptian wheat import tenders in the pre‐ and post‐invasion periods.
William W. Wilson, Sumadhur Shakya, Isaac Dubovoy   +2 more
wiley   +1 more source

In Situ Contact Angle Measurement for Autonomous Spin Coating in Self‐Driving Labs

Advanced Intelligent Discovery, EarlyView.
A vision‐based add‐on transforms commercial spin coaters into autonomous modules of Self‐Driving Labs. Combining a width‐scaled U‐Net with classical geometric analysis, the system simultaneously measures contact angles and estimates substrate pose using a single camera.
Sven Fischer, Micha Hiegle, Holger Röhm
wiley   +1 more source