Results 101 to 110 of about 296,490 (359)

Optical Chaos Generation and Applications

open access: yesAdvanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen   +8 more
wiley   +1 more source

Recent development and its prospect of satellite communications

open access: yesTongxin xuebao, 2015
After analyzing the characteristics of satellite communications,the developing status of communication satellite platform,available frequency resource,as well as the related key techniques are summarized.Through introducing some typical satellite ...
Ke-chu1 YI   +3 more
doaj   +2 more sources

Advances in Mode (De)Multiplexing Technologies via Circularly Symmetric Structured Light Beams

open access: yesAdvanced Photonics Research, EarlyView.
This review presents a comprehensive overview of mode (de)multiplexing technologies using circularly symmetric structured light beams, encompassing strategies of beam splitter combinations, multiorder diffractive gratings, optical coordinate transformations, angular dispersion lenses, multilayer cascaded modulations, and multidimensional hybrid (de ...
Qingji Zeng   +7 more
wiley   +1 more source

A System Design and Analysis for Satellite Communication Link [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2000
A satellite RF communication link is analyzed based on a simple fundamental equations by systematic approach in this paper. The number of variables related to a design and analysis of satellite RF link is often a dozen or more, thus it is a tedious and ...
Tae Jin Chung, Jong Won Eun
doaj  

International communications satellite systems [PDF]

open access: yes
Ten satellite systems for international communication are briefly described.
Wu, William W.
core   +1 more source

Recycling and Sustainable Design for Smart Textiles − A Review

open access: yesAdvanced Sustainable Systems, EarlyView.
The article reviews recycling strategies and sustainable design approaches for smart textiles, emphasizing eco‐friendly materials, mechanical and chemical recycling methods, and circular economy principles. It explores challenges in separating embedded electronics and highlights recent innovations in sustainable textile technology.
Melkie Getnet Tadesse   +3 more
wiley   +1 more source

A satellite system for land-mobile communications in Europe [PDF]

open access: yes
There exists a great unsatisified demand for land mobile communications in Europe, particularly in sectors of business activity such as the road transport industry.
Bartholome, P., Rogard, R.
core   +1 more source

Deciphering the Role and Mechanism of Decidual Monocyte‐Derived Macrophage Infiltration in Obstetric Antiphospholipid Syndrome at Single‐Cell Resolution

open access: yesAdvanced Science, EarlyView.
This study uncovers a novel mechanism and therapeutic targets in obstetric antiphospholipid syndrome (OAPS). Antiphospholipid antibody/ß2‐glycoprotein I complex boosts CCL2 and TNF‐α expression in decidual macrophages via TLR4‐NF‐κB. CCL2 accumulates on endothelial surfaces via ACKR1, recruiting monocyte‐derived CCR2+ macrophages, driving inflammation,
Rui Gao   +13 more
wiley   +1 more source

Partially adaptive baeam-forming maethods based on genetic algorithms

open access: yesTongxin xuebao, 2006
An improved genetic algorithm(GA) for real time beam-forming of onboard planar array was presented. In or-der to meet the real-time processing requirements, this GA was combined with partially adaptive beam-forming tech-niques in the phase-only adaptive ...
JIN Jun1, WANG Hua-li1, LIU Miao2
doaj  

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