Results 51 to 60 of about 10,131,863 (310)
Biodegradable and Biocompatible Functional Polymers for Biomedical Applications
Advanced Functional Materials, EarlyView.Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han +5 more
wiley +1 more source
Adaptive symbol-rate free-space-optical communications [PDF]
2013 Australian Communications Theory Workshop (AusCTW), 2013 Free space optical communications through fading atmospheric channels can achieve improved throughput by using adaptive transmission techniques. This paper considers the use of adaptive symbol-rate and transmit-power methods. We use an idealised model of channel coding that assumes zero errors can be achieved above some SNR threshold and adjust the ...
William G. Cowley +2 more
openaire +1 more source
Sensors, 2022 Free space optical (FSO) communication can support various unmanned aerial vehicles’ (UAVs) applications that require large capacity data transmission.
Siwoong Park +6 more
doaj +1 more source
Investigation of turbulence effect on the free space optical link for ground-to-train communications [PDF]
, 2011 There is a growing demand for high mobility and ultrafast internet/data services which drives the motivation for free space optical (FSO) communications for high speed trains.
Ghassemlooy, Zabih +4 more
core
Analysis and evaluation of optimum wavelengths for free-space optical transceivers [PDF]
, 2010 The objective of this paper is to analyse and present the latest results obtained for free-space optics (FSO) within the EU COST Action IC-0802 and within the European Space Agency (ESA) contract.
Z. Ghassemlooy +15 more
core +1 more source
Advanced Functional Materials, EarlyView.Combined UV–vis transmittance and wavelength‐dependent photo‐assisted DC I–V analyses reveal defect‐induced optical instability and a high density of deep donor‐like subgap traps in La‐doped SrSnO3. The resulting MOSFET achieves one of the highest on/off ratios reported for ABO3 perovskite devices, demonstrating the promise of stannate perovskites as ...
Sojin Jung +17 more
wiley +1 more source
Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link
IEEE Photonics Journal, 2022 One of technical challenges in laser inter-satellite link (ISL) is the mitigation of performance degradation caused by pointing errors and angle-of-arrival (AoA) fluctuations arising unavoidably from satellite movements and vibrations.
Kwanyong Lee, Vuong Mai, Hoon Kim
doaj +1 more source
Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites
Advanced Functional Materials, EarlyView.Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto +4 more
wiley +1 more source
Review of Optical Wireless Communications Technologies in Different Operational Environments [PDF]
Problemy MechatronikiThis article examines existing technologies for free-space optical communications in both the atmosphere and water, with an emphasis on their practical potential.
Zbigniew BIELECKI (zbigniew.bielecki@wat.edu.pl) +1 more
doaj +1 more source
High speed train communications systems using free space optics [PDF]
, 2010 In this work, we propose a broad-band free space optical (FSO) wireless communications system for high-speed trains. The system consists of optical transceivers positioned outside the train and along the railway track.
Ghassemlooy, Zabih +4 more
core