Results 11 to 20 of about 20,327 (141)

Research Pathways of Forest Above-Ground Biomass Estimation Based on SAR Backscatter and Interferometric SAR Observations

open access: yesRemote Sensing, 2018
Estimation of forest biomass with synthetic aperture radar (SAR) and interferometric SAR (InSAR) observables has been surveyed in 186 peer-reviewed papers to identify major research pathways in terms of data used and retrieval models.
Maurizio Santoro, Oliver Cartus
doaj   +1 more source

Smart Face Mask with an Integrated Heat Flux Sensor for Fast and Remote People’s Healthcare Monitoring

open access: yesSensors, 2021
The COVID-19 pandemic has highlighted a large amount of challenges to address. To combat the spread of the virus, several safety measures, such as wearing face masks, have been taken.
Marc Lazaro   +3 more
doaj   +1 more source

How Do Continuous High-Resolution Models of Patchy Seabed Habitats Enhance Classification Schemes?

open access: yesGeosciences, 2019
Predefined classification schemes and fixed geographic scales are often used to simplify and cost-effectively map the spatial complexity of nature.
Gustav Kågesten   +3 more
doaj   +1 more source

Backscatter Communications [PDF]

open access: yesIEEE Journal of Microwaves, 2021
This paper addresses backscatter communications as a new paradigm for Internet of Things (IoT) sensor wireless solutions. The paper clearly presents the history background of the technology and then makes a summary of the more recent developments form several groups around the world, with emphasis in US and Europe groups.
Ricardo Torres   +9 more
openaire   +2 more sources

Improving the Estimation of Water Level over Freshwater Ice Cover using Altimetry Satellite Active and Passive Observations

open access: yesRemote Sensing, 2020
Owing to its temporal resolution of 10-day and its polar orbit allowing several crossings over large lakes, the US National Aeronautics and Space Administration (NASA) and the French Centre National d’Etudes Spatiales (CNES) missions including Topex ...
Jawad Ziyad   +4 more
doaj   +1 more source

RFID Backscatter Based Sport Motion Sensing Using ECOC-Based SVM

open access: yesSensors, 2023
With the advent of the 5G era, radio frequency identification (RFID) has been widely applied in various fields as one of the key technologies for the Internet of Things (IoT) to realize the Internet of Everything (IoE). In recent years, RFID-based motion
Lei Han, Xia Hua
doaj   +1 more source

Integrability Breaking from Backscattering

open access: yesPhysical Review Letters, 2023
We analyze the onset of diffusive hydrodynamics in the one-dimensional hard-rod gas subject to stochastic backscattering. While this perturbation breaks integrability and leads to a crossover from ballistic to diffusive transport, it preserves infinitely many conserved quantities corresponding to even moments of the velocity distribution of the gas. In
Lopez-Piqueres, Javier, Vasseur, Romain
openaire   +3 more sources

Frequency-Spectra-Based High Coding Capacity Chipless RFID Using an UWB-IR Approach

open access: yesSensors, 2021
A novel methodology is proposed to reliably predict the resonant characteristics of a multipatch backscatter-based radio frequency identification (RFID) chipless tag.
Kawther Mekki   +4 more
doaj   +1 more source

Towards Including Dynamic Vegetation Parameters in the EUMETSAT H SAF ASCAT Soil Moisture Products

open access: yesRemote Sensing, 2021
The TU Wien Soil Moisture Retrieval (TUW SMR) approach is used to produce several operational soil moisture products from the Advanced Scatterometer (ASCAT) on the Metop series of satellites as part of the EUMETSAT Satellite Application Facility on ...
Susan C. Steele-Dunne   +3 more
doaj   +1 more source

Investigating the Influence of the Physiological Environment on Quantitative Contrast-enhanced Ultrasound Imaging

open access: yesJournal of Medical Ultrasound, 2014
Ultrasound Doppler studies have long been used for quantifying blood flow velocity, and microbubble contrast agents can be used to amplify the Doppler signal.
Ipshita Gupta
doaj   +1 more source

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