Results 41 to 50 of about 14,550 (304)

Exploiting CO2:CO correlations from aircraft concentration data in a regional atmospheric inversion [PDF]

open access: yes, 2006
Observed correlations between atmospheric concentrations of CO2 and CO represent potentially powerful information for improving CO2 surface flux estimates through coupled CO2-CO inverse analyses.
Vay, Stephanie A.   +25 more
core   +1 more source

Aircraft Wake-Vortex Evolution in Ground Proximity: Analysis and Parameterization

open access: yes, 2006
Field measurement data of 282 wake vortex pairs and respective environmental conditions acquired at Frankfurt Airport by means of lidar, Sodar/RASS, and ultrasonic anemometer are used to analyze wake vortex behavior in ground proximity. Exceptional cases
Steen, Meiko   +3 more
core   +1 more source

Collaborative Localization Method Based on Hybrid Network for Aerial Swarm

open access: yesAerospace
In light of the satellite rejection environment and how aircraft can obtain high-precision positioning, this paper proposes a collaborative correction algorithm for aircraft based on the rank-defect network.
Rong Wang   +4 more
doaj   +1 more source

POSSIBILITY OF USE OF THE RIVER BADGE SHIP AS A POTENTIAL AIRCRAFT CARRIER IN THE SECURITY OF LOGISTIC AND CRITICAL INFRASTRUCTURE [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2019
This article contains a description and analysis of the hypothetical application of the inland barge as an "aircraft carrier" with observation aircraft, both manned helicopters and unmanned drones.
Jakub MARSZAŁKIEWICZ
doaj   +1 more source

Quantifying the impact of BOReal forest fires on Tropospheric oxidants over the Atlantic using Aircraft and Satellites (BORTAS) experiment: design, execution and science overview [PDF]

open access: yes, 2013
We describe the design and execution of the BORTAS (Quantifying the impact of BOReal forest fires on Tropospheric oxidants over the Atlantic using Aircraft and Satellites) experiment, which has the overarching objective of understanding the chemical ...
Taylor, J.   +223 more
core   +1 more source

The Impact of the Hunga Tonga–Hunga Ha’apai Volcanic Eruption on the Stratospheric Environment

open access: yesAtmosphere
In this study, an overview of two years of research findings concerning the 2022 Hunga Tonga–Hunga Ha’apai (HTHH) volcanic eruption in the stratospheric environment is provided, focusing on water vapor, aerosols, and ozone.
Qian Sun, Taojun Lu, Dan Li, Jingyuan Xu
doaj   +1 more source

Validation of XCO2 derived from SWIR spectra of GOSAT TANSO-FTS with aircraft measurement data [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Column-averaged dry air mole fractions of carbon dioxide (XCO2) retrieved from Greenhouse gases Observing SATellite (GOSAT) Short-Wavelength InfraRed (SWIR) observations were validated with aircraft measurements by the Comprehensive Observation Network ...
M. Inoue   +15 more
doaj   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

open access: yesAdvanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe   +4 more
wiley   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

open access: yesAdvanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl   +4 more
wiley   +1 more source

Biomass burning emission inventory with daily resolution: Application to aircraft observations of Asian outflow [PDF]

open access: yes, 2003
Asian ...
Donald R. Blake   +14 more
core   +1 more source

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