Results 61 to 70 of about 11,238 (217)

IMPLEMENTATION OF AN EFFECTIVE FSO WDM SYSTEM UNDER DIFFERENT ATMOSPHERIC CONDITIONS WITH DIFFERENT CODING SCHEMES [PDF]

Journal of Mechanics of Continua and Mathematical Sciences
In different atmospheric conditions, Free Space Optical (FSO) transmission is vital because it sends data via light beams through the atmosphere. This technique transmits data quickly and efficiently with low signal attenuation in clear weather.
Basim Galeb, Dalal Abdulmohsin, Haitham Bashar, Kadhum Al-Majdi, Aqeel Al-Hilali   +4 more
doaj   +1 more source

How Multiple Streams Influence Agenda‐Setting for Water Reuse in Swiss Substates

Environmental Policy and Governance, EarlyView.
ABSTRACT As climate change creates significant challenges for both the environment and society, potential mitigation and adaptation solutions are widely discussed. Yet, neither challenges nor their potential solutions automatically reach the political agenda or lead to a policy decision.
Magdalena A. Knabl, Katrin Pakizer, Manuel Fischer, Eberhard Morgenroth, Christian Binz   +4 more
wiley   +1 more source

The Promise and Challenges of Ammonia Electrosynthesis From Dinitrogen and Water Using an Electrochemical Palladium Membrane

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Electrosynthesis of ammonia from nitrogen gas and water at ambient temperature is demonstrated using a device equipped with an electrochemical palladium membrane, which provides exclusive selectivity for the transfer of protons between the aqueous water oxidation and non‐aqueous nitrogen reduction compartments.
Ngoc‐Trung Nguyen, Dinh‐Duong Pham, Duong T. H. Truong, Dijon A. Hoogeveen, Mazin Al‐Alawi, Thi Mung Vu, Koustav Banerjee, Sebastian O. Fürer, Peter Strasser, Hoang‐Long Du, Douglas R. MacFarlane, Alexandr N. Simonov   +11 more
wiley   +2 more sources

Evaluation of the impact of anatomical region-specific HU-RED conversion curves on VMAT treatment planning for head and neck cancer

The Egyptian Journal of Radiology and Nuclear Medicine
Background The establishment of a precise correlation between Hounsfield units and electron densities is crucial for effectively correcting tissue inhomogeneities during radiation therapy treatment planning.
Imane Hattal, Abdeslem Rrhioua, Amine El Outmani, Mustapha Zerfaoui, Dikra Bakari, Yassine Oulhouq, Soufiane Berhili   +6 more
doaj   +1 more source

Dual‐Metasurface‐Integrated Fiber Array for Bidirectional Cylindrical‐Vector‐Beam Multiplexed Communication Using Off‐Axis Spatial Manipulation

Laser &Photonics Reviews, EarlyView.
A dual‐layer metasurface is integrated on a fiber‐array facet to realize compact, plug‐and‐play free‐space optical links with cylindrical vector beam (CVB) space‐division multiplexing. An optimized off‐axis collimation layer steers multiple channels, while a Dammann vortex layer performs polarization–topology conversion for bidirectional CVB (de ...
Xipeng Lu, Jinke Li, Jin Tae Kim, Shaoyan Li, Hongliang Li, Duk‐Yong Choi, Sang‐Shin Lee   +6 more
wiley   +1 more source

Biocontrol and plant growth‐promoting potential of Streptomyces strains against fungal pathogens of tomato and wheat for a sustainable agriculture

Pest Management Science, EarlyView.
This study highlights the biocontrol potential of Streptomyces strain Strep_22. In vitro, it inhibits key fungal pathogens by 91.52%. In vivo, it significantly reduces disease incidence in wheat and tomato while enhancing biomass, shoot, and root development, offering a highly promising, sustainable ecological alternative to chemical pesticides ...
Thomas Conte, Maria Grazia Morea, Gaetana Ricciardi, Angelo Pastino, Francesco Lops, Maria Luisa Raimondo, Antonia Carlucci   +6 more
wiley   +1 more source

Modelling and analysis of FSO ground-to-train communications for straight and curved tracks [PDF]

, 2013
In this work, a free space optical (FSO) link for the ground-to-train communications is proposed. Analytical analysis is carried out for the case of the straight as well as curved rail tracks.
Poliak, Juraj, Ghassemlooy, Zabih, Paudel, Rupak, Leitgeb, Erich   +3 more
core  

ROLE OF SOIL AND CLIMATE CHARACTERISTICS IN THE FORMATION OF RADIOACTIVE CONTAMINATION OF MUSHROOMS

Радиационная гигиена, 2017
The present work is devoted to an analysis of the regularities of 137Cs accumulation by forest mushrooms after the Chernobyl accident and the role of physical-chemical soil characteristics and climate characteristics in the formation of radioactive ...
M. Kaduka, V. Shutov, G. Bruk, M. Balonov   +3 more
doaj  

On the Capacity Performance of Hybrid FSO/RF System With Adaptive Combining Over Generalized Distributions

IEEE Photonics Journal, 2022
This paper investigates the ergodic capacity performance of hybrid free space optics (FSO)/ radio frequency (RF) system by employing an adaptive-combining-based switching scheme.
Narendra Vishwakarma, Swaminathan R
doaj   +1 more source

Routing and Downlink Resource Allocation for Multicast Traffic in LEO Satellite Constellations

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT In this work, we optimize unicast and multicast traffic delivery over non‐terrestrial networks (NTNs) to users on the ground through direct satellite downlink (DL). We consider a gateway‐free mesh architecture with low Earth orbit (LEO) satellites interconnected via inter‐satellite links (ISLs), where unicast and multicast services compete for
Federico Lozano‐Cuadra, Israel Leyva‐Mayorga, Jimmy Jessen Nielsen, Beatriz Soret   +3 more
wiley   +1 more source