Results 51 to 60 of about 7,278,007 (216)

Global Overview of the Use and Effectiveness of Ultraviolet C Technology in Fresh, Minimally Processed Apples and Apple Juice Over the Last 10 Years

open access: yesFood Science &Nutrition, Volume 14, Issue 9, September 2026.
A decade of UV‐C irradiation in Apple postharvest processing: from whole fruit to juice. ABSTRACT The apple is a fruit with significant economic value and a rich nutritional profile, containing high levels of fiber, vitamins, minerals, and bioactive compounds. However, it is susceptible to chemical‐enzymatic oxidation and microbial spoilage.
Mahyra da Paixão e Silva   +6 more
wiley   +1 more source

Mobil FSO activities in Europe and fading mitigation approaches [PDF]

open access: yes, 2007
The increasing emergence of data services for mobile applications requires high-speed communication technologies. To this end, free-space optical (FSO) communications technology has the potential to outperform radio frequency (RF) systems.
Hennes Henniger   +5 more
core   +1 more source

Modeling of optical wave propagation through turbulent atmosphere using fractional approach for FSO wireless communication

open access: yesJournal of Physics Communications, 2023
Free space optical (FSO) wireless communication has emerged as a viable alternative to the existing fiber optics and radio frequency (RF) communications due to its ability to operate in unlicensed spectrum, offering huge data handling capacities and ...
Abdullah Nafis Khan   +2 more
doaj   +1 more source

Optical Phased Arrays on Photonic Integrated Circuit Platforms: Challenges, Opportunities, and Future Applications

open access: yesNanophotonics, Volume 15, Issue 14, 27 July 2026.
Integrated optical phased arrays are emerging as scalable engines for solid‐state beam steering and programmable wavefront control. This Review maps the field from beam‐steering principles and core building blocks to material platforms, system‐level bottlenecks, and application frontiers, highlighting how heterogeneous integration, aperiodic ...
Jingwei Li   +7 more
wiley   +1 more source

BPSK subcarrier intensity modulated free-space optical communications in atmospheric turbulence [PDF]

open access: yes, 2009
Free-space optical communications (FSO) propagated over a clear atmosphere suffers from irradiance fluctuation caused by small but random atmospheric temperature fluctuations.
Ghassemlooy, Zabih   +3 more
core   +1 more source

An Overview of Free Space Optics with Quantum Cascade Lasers [PDF]

open access: yes, 2014
The article presents an overview of the work on quantum cascade lasers application in free space optical systems (Free Space Optics - FSO). There are discussed the main issues of the open-space laser communications and their practical construction ...
Mikołajczyk, Janusz
core   +3 more sources

Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics

open access: yesSmall, Volume 22, Issue 42, 27 July 2026.
Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko   +5 more
wiley   +1 more source

Curved Track Analysis of FSO Link for Ground-to-Train Communications [PDF]

open access: yes, 2014
In this work, a free space optical (FSO) link for the ground-to-train (G2T-FSO) communications is proposed. Analytical analysis is carried out for the curved rail tracks.
Poliak, Juraj   +9 more
core  

Constrained Deep Reinforcement Learning for Joint Energy-Efficient Power Control and Link Switching in Hybrid FSO-RF Systems

open access: yesIEEE Access
Hybrid free space optics-radio frequency (FSO-RF) backhaul systems offer a solution to high capacity, weather-robust wireless infrastructure; however, jointly optimising transmit power and link selection under dynamic atmospheric conditions remains ...
Shirley N. Musima   +2 more
doaj   +1 more source

Performance Analysis of Hybrid RF/FSO System Using BPSK-SIM and DPSK-SIM Over Gamma-Gamma Turbulence Channel With Pointing Errors for Smart City Applications

open access: yesIEEE Access, 2018
The flourishing technology in wireless communication-free space optics (FSO) offers lots of merits over radio frequency (RF) links due to its license free bandwidth, ease of installation, high security features, and viable cost for short distance ...
Prabu Krishnan
doaj   +1 more source

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