Results 41 to 50 of about 3,015,272 (369)
Advanced Science, EarlyView.This paper presents a programmable metasurface‐based Meta Key Distribution (MKD) system for secure, protocol‐independent key exchange in indoor wireless settings. By embedding entropy into the wireless channel, it enables lightweight, compatible cryptographic key generation.
Xinyu Li +7 more
wiley +1 more source
The Meeting of Two Cultures: Public Broadcasting on the Threshold of the Digital Age [PDF]
, 2008 Provides a summary of discussions held in November 2007 on "Public Broadcasting: The Digital Challenge" among representatives of foundations, public broadcasting corporations and academia.
M. J. Zuckerman +3 more
core
Advanced Science, EarlyView.A neural network‐enabled permittivity engineering paradigm is introduced, transcending traditional trial‐and‐error design. By decoupling electromagnetic parameters and screening a high‐throughput feature space, an ultrathin (1.0 mm) magnetic absorber is inversely designed, experimentally achieving a superior and customizable 5.1 GHz bandwidth and ...
Chenxi Liu +9 more
wiley +1 more source
Concatenated Multilevel Coded Modulation Schemes for Digital Satellite Broadcasting [PDF]
, 1997 The error performance of bandwith-efficient concatenated multilevel coded modulation (MCM) schemes for digital satellite broadcasting is analyzed. Nonstandard partitioning, multistage decoding, and outer Reed-Solomon (RS) codes are employed to provided ...
Imai, Hideki, Morelos-Zaragoza, Robert H
core +1 more source
On the performance of densified DVB-H single frequency networks [PDF]
, 2006 The broadcasting of TV programmes to mobile phones can be enabled by the newly developed technology called Digital Video Broadcasting-Handheld (DVB-H). Because of the scarcity and cost of frequency resources, frequency reuse needs to be considered when ...
Owens, TJ, Song, YH, Zhang, C
core +1 more source
Screw‐Based Pill for Intelligent Robotic Extraction of Viscous Fluids in Medical Applications
Advanced Intelligent Systems, EarlyView.Screw‐based pill for intelligent robotic extraction (S‐PIRE) is a magnetically actuated smart capsule with a motorized screw, 3‐axis sensor, and Bluetooth control for site‐specific and minimally invasive remote sampling of viscous fluids, overcoming passive diffusion limitations.
Prima Dewi Sinawang +6 more
wiley +1 more source
Design of Wideband Radome for Antenna Array for Digital TV Broadcasting
RMUTL Engineering Journal, 2018 Considerations of electromagnetic properties for radome design of wideband applications of digital TV antenna array for broadcasting. Geometrically-designed materials are appropriately chosen for optimal wave propagation performance.
Sitthichai Dentri, Bancha Luadang
doaj +1 more source
, 2017 Passive bistatic radars (PBRs) sensors are emerging technologies that have sparked interest due to the advantages derived from the use of opportunity illuminators instead of dedicated transmitters.
M. Jarabo-Amores +7 more
semanticscholar +1 more source
Digital Radio Strategies in the United States: A Tale of Two Systems [PDF]
, 2010 This essay analyzes how, despite early interest in the Digital Audio Broadcasting standard (DAB) in the United States, an alternative in-band system (HD Radio) was developed as the approved digital radio ...
Huntsberger, Michael, Stavitsky, Alan G.
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American Journal of Community Psychology, EarlyView.Abstract Mobile technologies have become significant resources for crisis communication and social support in recent years. However, despite empirical evidence pointing to the centrality of these technologies for parenthood in everyday life, it is yet unknown how parents' coping resources play a role in the digital environment.
Daphna Yeshua‐Katz +2 more
wiley +1 more source