Results 221 to 230 of about 2,418,601 (257)
Advanced Functional Materials, EarlyView.Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco +8 more
wiley +1 more source
Advanced Functional Materials, EarlyView.The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner +4 more
wiley +1 more source
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1988
Open image in new window The Physical Layer is the lowest layer in the OSI model, and is the only layer where a subsystem in one open system communicates directly with the corresponding subsystem in another. Its function is to transfer information transparently between physical service users (data link entities).
Peter Boait +5 more
openaire +1 more source
Open image in new window The Physical Layer is the lowest layer in the OSI model, and is the only layer where a subsystem in one open system communicates directly with the corresponding subsystem in another. Its function is to transfer information transparently between physical service users (data link entities).
Peter Boait +5 more
openaire +1 more source
2021
This book studies the vulnerability of wireless communications under line-of-sight (LoS) and non-LoS correlated fading environments. The authors theoretically and practically provide physical layer security analyses for several technologies and networks such as Fifth-Generation (5G) networks, Internet of Things (IoT) applications, and Non-orthogonal ...
openaire +2 more sources
This book studies the vulnerability of wireless communications under line-of-sight (LoS) and non-LoS correlated fading environments. The authors theoretically and practically provide physical layer security analyses for several technologies and networks such as Fifth-Generation (5G) networks, Internet of Things (IoT) applications, and Non-orthogonal ...
openaire +2 more sources
Funkschnittstelle — Physical Layer
1997Die auf der ersten der sieben Schichten des OSI-Referenzmodells liegende physikalische Schicht beinhaltet in GSM sehr komplexe Funktionen. Auf dieser untersten Schicht liegen die durch ein TDMA-Vielfachzugriffsverfahren definierten physikalischen Kanale.
Jörg Eberspächer, Hans-Jörg Vögel
openaire +1 more source
2013
The demand of high-speed data services to wireless bandwidths grows rapidly, which has promoted various technology development. D2D has been proposed to be an underlay to the cellular network aiming to improve spectrum efficiency and system sum rate.
Lingyang Song, Zhu Han, Chen Xu
openaire +1 more source
The demand of high-speed data services to wireless bandwidths grows rapidly, which has promoted various technology development. D2D has been proposed to be an underlay to the cellular network aiming to improve spectrum efficiency and system sum rate.
Lingyang Song, Zhu Han, Chen Xu
openaire +1 more source