Results 21 to 30 of about 21,387,745 (369)

Burned Area Detection and Mapping: Intercomparison of Sentinel-1 and Sentinel-2 Based Algorithms over Tropical Africa

open access: yesRemote Sensing, 2020
This study provides a comparative analysis of two Sentinel-1 and one Sentinel-2 burned area (BA) detection and mapping algorithms over 10 test sites (100 × 100 km) in tropical and sub-tropical Africa.
Mihai A. Tanase   +11 more
doaj   +1 more source

Bonding social capital and health within four First Nations communities in Canada: A cross-sectional study

open access: yesSSM: Population Health, 2021
To date, research on social capital in Indigenous contexts has been scarce. In this quantitative study, our objectives were to (1): Describe bonding social capital within four distinct First Nations communities in Canada, and (2) Explore the associations
Sharon Yeung   +7 more
doaj   +1 more source

Two-Propagation-Modes and Dual-Band Antenna for Circular Polarized TX/RX Systems at C-Band [PDF]

open access: yesRadioengineering, 2022
This paper presents a novel slotted array for dual-band and circular-polarized applications. Two different propagation modes within a Substrate Integrated Waveguide (SIW), TE10 and TE20, feed at the same time two pairs of slots, aimed at different ...
I. Herrero-Sebastian, C. Benavente-Peces
doaj  

Dual Band Integrated Wideband Multi Resonating Patch Antenna for C–Band and Ku–Band Applications [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
A wideband antenna with dual band characteristic at 5.33/14.3GHz with resonating frequencies for wireless applications is presented. The strategy of the design is to introduce multiband in antenna band.
Karunesh Srivastava   +3 more
doaj   +1 more source

Broadband passive InP membrane regenerator for silicon-based optical interconnect applications [PDF]

open access: yes, 2013
Improved passive signal regeneration performance based on bonded InP membrane waveguides is demonstrated. A tripling of the ER and receiver sensitivity enhancement of >3.6dB is achieved over the entire C-band at a bitrate of 2.5Gb/
Liao, Miller, Reed, Roelkens, Tassaert
core   +7 more sources

Quantum teleportation using highly coherent emission from telecom C-band quantum dots [PDF]

open access: yesnpj Quantum Information, 2019
A practical way to link separate nodes in quantum networks is to send photons over the standard telecom fibre network. This requires sub-Poissonian photon sources in the wavelength band around 1550 nm, with photon coherence times sufficient to enable the
M. Anderson   +9 more
semanticscholar   +1 more source

Cropland Classification Using Sentinel-1 Time Series: Methodological Performance and Prediction Uncertainty Assessment

open access: yesRemote Sensing, 2019
Methods based on Sentinel-1 data were developed to monitor crops and fields to facilitate the distribution of subsidies. The objectives were to (1) develop a methodology to predict individual crop species or or management regimes; (2) investigate the ...
Erkki Tomppo, Oleg Antropov, Jaan Praks
doaj   +1 more source

Modified U-Slot Stacked Micro-Strip Patch Antenna for Ultra-Wideband Applications in S Band, C Band and X Band [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2017
The U-slot micro-strip patch antennas were originally developed for bandwidth broadening applications. This study presents a transmission line feed to modify the U-slot stacked rectangular micro-strip patch antenna for Ultra-Wide Band (UWB ...
Monika Surana, Amit Jain
doaj   +1 more source

C-Band Resistive SiC-MESFET mixer [PDF]

open access: yes, 2002
In this paper the design and characterization of a linear C-band single ended resistive SiC-MESFET mixer is presented. The mixer has a minimum conversion loss of 7.8 dB and has a third order intermodulation intercept point of 30.3 dBm.
Andersson, Kristoffer   +3 more
core   +1 more source

A penta‐band microstrip slot antenna for S‐, C‐ and X‐band applications

open access: yesElectronics Letters, 2023
This letter presents a compact penta‐band microstrip slot antenna. The proposed antenna comprises a microstrip feed line on the top plane, a polytetrafluoroethylene (PTFE) substrate, and a slotted ground plane.
Muhammad Asad Rahman   +5 more
doaj   +1 more source

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