Results 131 to 140 of about 55,438 (305)
Πειραματική Αξιολόγηση Ασύρματων Δικτύων 5ης Γενεάς
, 2022 Περίληψη Στο τμήμα Φυσικής του ΕΚΠΑ, στο Εργαστήριο Τηλεπικοινωνιών και Δικτύων του τομέα Ηλεκτρονικής Φυσικής και Συστημάτων, τον Μάρτιο του 2022 υλοποιήθηκε μία σύγχρονη τηλεπικοινωνιακή δομή 5G Standalone.
Tsoutsos Ioannis +1 more
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Advanced Functional Materials, EarlyView.An interstitium‐mimicking membrane combines three‐dimensional alveolar geometry, high pore interconnectivity, and mechanical compliance to overcome transport limitations of conventional lung‐on‐chip barriers. The resulting platform supports physiologic aerosol transport, quantitative analysis of cross‐barrier particle movement, and reveals divergent ...
Jae‐Won Choi +11 more
wiley +1 more source
Mobile Serverless Video Communication
, 2007 Voice and video conferencing have well established as regular communication services within the wired Internet. Facing the paradigm of ubiquitous computing and mobile communication, they are on the spot to be launched within a wireless Internet ...
Wählisch, Matthias +2 more
core +1 more source
Physical-layer security for the internet of things.
, 2017 Das Internet der Dinge (IoT), bei dem Kommunikationsknoten durch eingebettete Kleinstsystemen gebildet werden, gewinnt an wirtschaftlicher Bedeutung. Durch den enormen Preisdruck stellt sich jedoch eine große Herausforderung dar, die Nachfrage nach erhöhter Sicherheit im IoT zu realisieren. In dieser Arbeit untersuchen wir einen neuen Sicherheitsansatz,
openaire +2 more sources
Advanced Functional Materials, EarlyView.Tandem 2D vdW ferroelectric heterojunctions enable spectrally selective, self‐powered bipolar opto‐synaptic responses for retinal ON/OFF bipolar cell emulation and wavelength‐programmable logic operations. This work establishes vdW ferroelectric heterojunctions as a compelling materials platform for energy‐efficient, adaptive, and human‐like artificial
Rajiv Kumar Pandey +4 more
wiley +1 more source
4 Levels of IoT Architecture for Smart Irrigation Rice Fields
JOIN: Jurnal Online InformatikaWater is one of the main components in the agricultural sector. Traditional irrigation systems are often inefficient and ineffective, which can lead to water wastage and require huge resources.
R Hafid Hardyanto +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A Ti3C2@TiO2 heterostructure has been successfully fabricated by an in situ oxidation approach. The as‐fabricated Ti3C2@TiO2‐based photodetector exhibits narrow‐spectrum response with excellent stability. It also realizes sensitive Cr(VI) detection in a large concentration range of 10−12–10−6 M with an ultra‐low detection limit of 7.6 × 10−12 M ...
Jiahui Hou +11 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Electroforming‐free TiN/SiOx/Cu/SiOx/TiN memristive devices exploit pancake‐like Cu nanoparticles embedded in a SiOx double layer to create a heterogeneous Schottky‐barrier landscape. Under bias, oxygen‐vacancy redistribution progressively lowers local barriers and recruits initially inactive Cu‐PC pathways into a parallel conduction ensemble, enabling
Rouven Lamprecht +10 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.ABSTRACT Quantitative characterization of vascular heterogeneity in complex microphysiological systems (MPS), particularly within patient‐derived tumor microenvironments, remains a major challenge for scalable disease modeling and therapeutic evaluation.
Jungseub Lee +9 more
wiley +1 more source
CONTINUATION COURSES Electronic Commerce
, 2008 Political parties have traditionally served their stakeholders through the traditional media of radio, television and the print media. However, with the advent of the Internet, there has been a paradigm shift from the orthodox method of information ...
Edem Bart Williams +3 more
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