Results 81 to 90 of about 4,749,527 (270)

Wafer‐Scale Direct Growth of Ultraclean Monolayer Amorphous Carbon on c‐Sapphire by Remote Catalytic Dehydrogenation

Advanced Materials, EarlyView.
Remote catalytic dehydrogenation enables the direct growth of monolayer amorphous carbon on a 2‐inch sapphire wafer by thermal CVD. Spatial separation of the catalyst from the growth substrate eliminates metallic residue and post‐growth processing, yielding a wafer‐scale uniform film with a random polygonal sp2‐hybridized carbon network that exhibits ...
Muhammad Sabbtain Abbas, Imhwan Kim, Seokje Lee, Yasir Hassan, Jihwan Kim, Eunsu Lee, Han Ik Kim, Yoonkang Kim, Gyu‐Chul Yi   +8 more
wiley   +1 more source

Free Space Optical Communication for Inter-Satellite Link: Architecture, Potentials and Trends

IEEE Communications Magazine
The sixth-generation (6G) network is expected to achieve global coverage based on the space-air-ground integrated network, and the latest satellite network will play an important role in it. The introduction of inter-satellite links (ISLs) can significantly improve the throughput of the satellite network, and recently gets lots of attention from both ...
Guanhua Wang, Fang Yang 0001, Jian Song 0004, Zhu Han 0001   +3 more
openaire   +2 more sources

Horizontal Link Demonstration Over 143 km With CubeISL: The World\u27s Smallest Commercial Optical Communication Payload for Inter-Satellite Links [PDF]

New developments in the field of free-space optical (FSO) communications are enabling a breakthrough in satellite miniaturization and data rates. The CubeISL laser communication terminal (LCT), developed by the German Aerospace Center (DLR), shall ...
Rödiger, Benjamin, Schmidt, Christopher, Nonay, Jorge Rosano, Sinn, Andreas, Rüddenklau, René, Schitter, Georg   +5 more
core   +1 more source

Connectivity Analysis of Mega Constellation Satellite Networks with Optical Inter-Satellite Links

, 2021
Recently, low earth orbit (LEO) satellite-based systems have attracted tremendous attention and various technologies have been developed for payload miniaturization and optical communications. In addition, mega-constellation architectures are expected to
Choi, Jihwan P., Lee, Yonghwa, Yonghwa Lee, Jihwan P. Choi   +3 more
core   +1 more source

Anchored Fluoro‐Shielded Solvation for Lithium Metal Batteries

Advanced Materials, EarlyView.
Anchored fluoro‐shielded solvation reconstructs PVDF‐based polymer electrolytes by coupling polyanionic Li+‐solvate sites with fluorinated shielding segments. This design organizes anion‐rich solvation networks, strengthens selective Li+ transport, and generates LiF‐rich solid electrolyte interphase, enabling high conductivity, wide oxidative tolerance,
Kaihua Wen, Tengsheng Chi, Junyao You, Lei Mao, Xinxin Zhu, Yan‐Bing He, Zaiping Guo, Shilin Zhang   +7 more
wiley   +1 more source

Analysis of Beam Walk in Inter-Satellite Laser Link: Implications for Differential Wavefront Sensing in Gravitational Wave Detection

Applied Sciences
Achieving space-based gravitational wave detection requires the establishment of an interferometer constellation. It is necessary to establish and maintain stable laser interferometric links using the differential wavefront sensing (DWS) technnique. When
Xing-Guang Qian, Zhao Cui, Hao-Qi Shi, Xue Wang, Wei-Lai Yao, Rui-Hong Gao, Yi-Kun Wang   +6 more
doaj   +1 more source

Inter-satellite Omnidirectional Optical Communicator for Remote Sensing

, 2018
Inter-satellite Omnidirectional Optical Communicator for Remote ...
John Huleis (16326240), Joseph Griffin (13071861), Andrew DeNucci (16326243), Jose E Velazco (16326234), Ozdal Boyraz (11755298), Danny Wernicke (16326237), Imam Uz Zaman (16326246)   +6 more
core  

Tailored Cationic Visible‐Light‐Active Interfaces for Sustainable, Biodegradable Nanofibers With Dual‐Mode Antimicrobial Activity and Robust Electrostatic Particle Capture

Advanced Materials, EarlyView.
Surface co‐functionalization of biodegradable nanofibers with sodium copper chlorophyllin and quaternary ammonium compounds achieves synergistic antimicrobial activity through combined photodynamic and contact‐killing mechanisms. The cationic surface provides humidity‐resistant electrostatic particle capture while maintaining rapid enzymatic ...
Dong Uk Lee, Jae Hak Shin, Seung Yeon Lee, In Ho Kim, Jiho Choi, Joon Young Park, Sang Bok Kim, Jeong Sang Son, Sang Hun Kim, Jae Hee Jung, Dong Yun Choi   +10 more
wiley   +1 more source

Inter-Satellite Link Optimization of Two Collocated Geostationary Satellites

IEEE Access
With the growing number of geostationary satellites and the limited availability of orbital slots, satellite operators increasingly collocate multiple satellites within the same slot, necessitating coordination through inter-satellite links (ISL).
Fatemeh Amozegay, Amirreza Kosari, Amir Labibian   +2 more
doaj   +1 more source

Survey of software-defined radio and optical communication techniques for inter-satellite links

CEAS Space Journal
Abstract This paper surveys recent advances in software-defined radio (SDR) technologies and free-space optical (FSO) inter-satellite links (ISLs) for next-generation satellite networks. We review SDR architectures and heritage in spaceborne radios, discuss optical link technologies and terminal design, and examine integration ...
Debjit Naskar, Ritabhasa Chowdhury
openaire   +1 more source