Results 101 to 110 of about 195,439 (333)

A temporal-domain solar radiation pressure model for BDS-3 MEO orbit prediction

open access: yesGeo-spatial Information Science
Orbit prediction (OP) for global navigation satellite system (GNSS) satellites is crucial for current location-based Internet of Things (IoT) applications.
Min Li   +3 more
doaj   +1 more source

Adelgazamiento del glaciar cubierto Horcones Inferior, derivado de mediciones geodésicas mediante el uso de estaciones semicontinuas GNSS, durante un período de cinco estaciones de verano (C° Aconcagua, Argentina) [PDF]

open access: yes, 2016
We report on ice movements changes in the Horcones Inferior Glacier (HIG), a major debris-covered glacier located in the southern sector of Mt. Aconcagua, Central Andes of Argentina.
Baron, Jorge Horacio   +5 more
core   +1 more source

Mapping Skid Trails and Evaluating Soil Disturbance From UAV‐Based LiDAR Surveys in Mediterranean Forests

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Soil disturbance resulting from forest harvesting activities can have significant and lasting environmental consequences, particularly in sensitive ecosystems such as Mediterranean forests. Skid trails, the routes used by machinery to extract timber, are among the most critical areas of impact, and their detection is critical for assessing ...
Francesco Latterini   +9 more
wiley   +1 more source

Evaluating indoor positioning systems in a shopping mall : the lessons learned from the IPIN 2018 competition [PDF]

open access: yes, 2019
The Indoor Positioning and Indoor Navigation (IPIN) conference holds an annual competition in which indoor localization systems from different research groups worldwide are evaluated empirically.
Ali, Muhammad Usman   +60 more
core   +2 more sources

Time to burn: landscape drivers of fuel trait variability and fire regime in savanna ecosystems

open access: yesOikos, EarlyView.
Fuel traits are important determinants of fire behavior and regime in savannas and, thus, of how fire affects plant communities. However, whether these traits are correlated, predictable and how they are influenced by biotic and abiotic drivers remain to be rigorously evaluated.
Waleska B. F. Manzan   +2 more
wiley   +1 more source

Galileo and EGNOS as an asset for UTM safety and security [PDF]

open access: yes, 2019
GAUSS (Galileo-EGNOS as an Asset for UTM Safety and Security) is a H2020 project1 that aims at designing and developing high performance positioning systems for drones within the U-Space framework focusing on UAS (Unmanned Aircraft System) VLL (Very Low ...
Andrade-Cetto, Juan   +7 more
core  

The Eddy Experiment: accurate GNSS-R ocean altimetry from low altitude aircraft

open access: yes, 2004
During the Eddy Experiment, two synchronous GPS receivers were flown at 1 km altitude to collect L1 signals and their reflections from the sea surface for assessment of altimetric precision and accuracy.
Elfouhaily   +12 more
core   +1 more source

The benefits and challenges of using dense Mode‐S aircraft winds at ECMWF

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
In November 2022 ECMWF stopped using Mode‐S winds because their very high density in central Europe caused problems for the assimilation system. The data were reintroduced operationally in November 2023 combined with an improved aircraft thinning algorithm.
Bruce Ingleby
wiley   +1 more source

Can GNSS reflectometry detect precipitation over oceans? [PDF]

open access: yes, 2018
For the first time, a rain signature in Global Navigation Satellite System Reflectometry (GNSS‐R) observations is demonstrated. Based on the argument that the forward quasi‐specular scattering relies upon surface gravity waves with lengths larger than ...
Asgarimehr, Milad   +3 more
core   +1 more source

Carbon Material Films for Flexible and Efficient Electromagnetic Interference Shielding: A Review

open access: yesRare Metals, EarlyView.
ABSTRACT With the rapid development of technology such as the Internet and electronic devices, electromagnetic radiation pollution has become an increasingly prominent issue, which negatively impacts both human health and the normal operation of equipment.
Yu‐Xin Chen   +10 more
wiley   +1 more source

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