Results 51 to 60 of about 211,018 (292)

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Adaptive routing strategy in multi layer satellite communication networks

open access: yesTongxin xuebao, 2006
The characteristics of multi-coverage of multilayer satellite networks make sure of good validity and reliability of the space-based networks.Walker delta type constellation guarantees permanent inter satellite links between satellites in the same layer ...
LI Hui, GU Xue-mai
doaj   +2 more sources

Identifying retrofitting opportunities for Federated Satellite Systems [PDF]

open access: yes, 2017
This work aims to facilitate deployment of novel distributed space systems architectures such as Federated Satellite Systems (FSS). In particular, the purpose of the work is to identify retrofitting possibilities to incorporate existing satellites into a
Akhtyamov, Rustam   +2 more
core  

Iterative turbo beamforming for OFDM based hybrid terrestrial-satellite mobile system [PDF]

open access: yes, 2012
In the context of orthogonal frequency division multiplexing (OFDM)-based systems, pilot-based beamforming (BF) exhibits a high degree of sensitivity to the pilot sub-carriers.
Evans, B.G., Imran, M.A., Khan, A.H.
core   +1 more source

Region‐to‐Region Unidirectional Connection In Vitro Brain Model for Studying Directional Propagation of Neuropathologies

open access: yesAdvanced Functional Materials, EarlyView.
A unidirectional cerebral organoid–organoid neural circuit is established using a microfluidic platform, enabling controlled directional propagation of electrical signals, neuroinflammatory cues, and neurodegenerative disease–related proteins between spatially separated organoids.
Kyeong Seob Hwang   +9 more
wiley   +1 more source

Survey of Low Earth Orbit Satellite Communication Network Routing Technology

open access: yes天地一体化信息网络, 2022
Low earth orbit satellite communication network is an important part of the internet of everything era, but the characteristics of satellite constellation topology such as high dynamic, limited heterogeneous resources and unbalanced network service ...
Shuang ZHENG, Xing ZHANG, Wenbo WANG
doaj   +2 more sources

Flexible QoS Support in DVB-RCS2 [PDF]

open access: yes, 2013
Postprin
Fairhurst, Gorry   +3 more
core   +1 more source

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

open access: yesAdvanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai   +6 more
wiley   +1 more source

Laser Inter-Satellite Links in a Starlink Constellation

open access: yes, 2021
Laser inter-satellite links (LISLs) are envisioned between satellites in upcoming satellite constellations, such as Phase I of SpaceX's Starlink. Within a constellation, satellites can establish LISLs with other satellites in the same orbital plane or in different orbital planes.
Chaudhry, Aizaz U., Yanikomeroglu, Halim
openaire   +2 more sources

Carrier Aggregation in Multi-Beam High Throughput Satellite Systems [PDF]

open access: yes, 2019
Carrier Aggregation (CA) is an integral part of current terrestrial networks. Its ability to enhance the peak data rate, to efficiently utilize the limited available spectrum resources and to satisfy the demand for data-hungry applications has drawn ...
Al-Hraishawi, Hayder   +5 more
core   +2 more sources

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