Results 91 to 100 of about 429,305 (296)

Scenarios and performance measures for advanced ISDN satellite design and experiments [PDF]

open access: yes
Described here are the contemplated input and expected output for the Interim Service Integrated Services Digital Network (ISDN) Satellite (ISIS) and Full Service ISDN Satellite (FSIS) Models.
Pepin, Gerard R.
core   +1 more source

Intramolecular FRET Cascades Enable Small Efficiency Roll‐Off in Solution‐Processed OLEDs

open access: yesAdvanced Optical Materials, EarlyView.
This work highlights how an intramolecular FRET design strategy in solution‐processable MR‐TADF emitters enables narrowband emission, high PLQY, and efficient exciton harvesting. The resulting hyperfluorescent solution‐processed OLEDs reach up to 20.7% EQEmax with minimal efficiency roll‐off even at 10 000 cd m−2, demonstrating strong potential for ...
Mahni Fatahi   +4 more
wiley   +1 more source

Traffic simulation of broadband LEO constellation satellite communication system

open access: yesDianzi Jishu Yingyong, 2019
Due to the rapid development of small satellite technology,and the advantages of low earth orbit satellite(LEO) with low delay and low propagation loss as compared with the traditional geosynchronous orbit satellite(GEO), the broadband LEO constellation ...
Xu Jun, Lu Wei, Zhang Gengxin
doaj   +1 more source

QKD from a microsatellite: the SOTA experience

open access: yes, 2018
The transmission and reception of polarized quantum-limited signals from space is of capital interest for a variety of fundamental-physics experiments and quantum-communication protocols.
Carrasco-Casado, Alberto   +5 more
core   +1 more source

Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field

open access: yesAdvanced Robotics Research, EarlyView.
This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao   +3 more
wiley   +1 more source

Space communications serve the national economy [PDF]

open access: yes
USSR thoughts on space communication and artificial earth ...

core   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

open access: yesAdvanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

2D Copper MOF Membranes with Precise Pores for Ionic Memory

open access: yesAdvanced Science, EarlyView.
 . ABSTRACT Biological ion channels play a critical role in the complex physiological processes of living organisms. Inspired by these natural systems, we demonstrate the fabrication of ultrathin 2D copper‐based metal‐organic framework (CuMOF) films and their application to mimic key functionalities of biological membranes. Using a liquid–air interface
Hiran Jyothilal   +9 more
wiley   +1 more source

A Satellite Secure Communication Strategy and Performance Analysis with Multi‑satellite and Terminal Multi‑antenna

open access: yesShuju Caiji Yu Chuli
With the development of 5G and 6G communications, satellite communication, which can provide the global seamless coverage capability, has become an indispensable and important role.
ZHU Yinxia   +4 more
doaj   +1 more source

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