Results 11 to 20 of about 745,558 (246)

56.6 dB high gain L-band EDFA utilizing short-length highly-doped erbium rare-earth material [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
In this paper, we experimentally investigate the performance of an efficient high gain L-band erbium-doped fiber (EDF) amplifier structure utilizing short-length highly-doped erbium rare-earth material with a single pump source.
Al-Mansoori M. H., Al-Ghaithi W. S.
doaj   +1 more source

Guidance on evaluating parametric model uncertainty at decision-relevant scales [PDF]

open access: yesHydrology and Earth System Sciences, 2022
Spatially distributed hydrological models are commonly employed to optimize the locations of engineering control measures across a watershed. Yet, parameter screening exercises that aim to reduce the dimensionality of the calibration search space are ...
J. D. Smith   +5 more
doaj   +1 more source

Wavelength-switchable L-band fiber laser assisted by random reflectors

open access: yesJournal of the European Optical Society-Rapid Publications, 2023
A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) fiber reflector is here presented.
Perez-Herrera R.A.   +5 more
doaj   +1 more source

L-band compatibility of LDACS1

open access: yes2011 IEEE/AIAA 30th Digital Avionics Systems Conference, 2011
In order to cope with the increasing demand of communication capacity in the aeronautical sector, the Future Communications Infrastructure has been developed. For air ground communications currently two candidates are considered for the L-band digital aeronautical communication system.
Schneckenburger, Nicolas   +3 more
openaire   +4 more sources

Analisis Parameter Antena Mikrostrip dengan Metode Split Ring Resonator pada Frekuensi L-Band

open access: yesMatrix: Jurnal Manajemen Teknologi dan Informatika, 2020
Pada penelitian ini dilakukan perancangan antena mikrostrip dengan menggunakan metode split ring resonator (SRR) untuk aplikasi pada frekuensi L-Band. Antena ini mempunyai dimensi substrat 90 mm x 50 mm dengan panjang patch 60 mm dan lebar patch 44 mm ...
Dian Rusdiyanto   +2 more
doaj   +1 more source

Сonceptual design of small spacecraft with a high resolution P-VHF band bistatic SAR system

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017
Spatial resolution is one of the most important characteristics of a radar image. Significant limitations in communication regulations should be taken into account concerning radar facilities in long-wave frequency ranges (P or VHF). These limitations do
O. V. Goryachkin   +2 more
doaj   +1 more source

Remote sensing of sea surface salinity: challenges and research directions

open access: yesGIScience & Remote Sensing, 2023
Salinity is a key parameter that affects the surface, deep circulations, and heat transport of oceans. Sea surface salinity (SSS) represents the salinity at the ocean surface and impacts atmosphere – ocean interactions and vertical ocean circulation.
Young Jun Kim   +4 more
doaj   +1 more source

Ionospheric Sounding Based on Spaceborne PolSAR in P-Band

open access: yesAtmosphere, 2022
The signal of spaceborne low-frequency full-polarization synthetic aperture radar (full-pol SAR) contains abundant ionospheric information. Phased Array L-band Synthetic Aperture Radar (PALSAR) working in the L-band has been verified as an emerging ...
Wulong Guo   +8 more
doaj   +1 more source

Photochemical activity in Dalbergia nigra (Vell.) Fr. Allem. seedlings submitted to water deficit

open access: yesJournal of Forest Science, 2018
In this study, we evaluated the influence of the daily variation of both intensity of photosynthetically active radiation (PAR) and temperature on chlorophyll a fluorescence parameters in Jacarandá-da-Bahia seedlings submitted to two treatments: T1 ...
Natiele SANDRINI CELOVANE   +6 more
doaj   +1 more source

Special issue in honour of Prof. Reto J. Strasser - Revisiting JIP-test: An educative review on concepts, assumptions, approximations, definitions and terminology

open access: yesPhotosynthetica, 2020
The aim of this educative review is, by revisiting the JIP-test as introduced and further elaborated and extended by Professor Reto J. Strasser and his research group, to clarify concepts, assumptions, and approximations on which it is based, as well as ...
M. TSIMILLI-MICHAEL
doaj   +1 more source

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