Results 1 to 10 of about 468,322 (270)

U-Space Social and Environmental Performance Indicators

open access: yesDrones
The social potential of Urban Air Mobility (UAM) as a greener and faster transportation system in and around urban environments is indisputable. Nevertheless, the success of UAM introduction and its wide use will strongly depend on acceptance by the ...
Tatjana Krstić Simić   +5 more
doaj   +4 more sources

Evaluating U-Space for UAM in Dense Controlled Airspace

open access: yesDrones, 2023
The operation of unmanned aircraft systems in shared airspace can serve as an accelerator for the global economy and a sensitive addition to the existing mix of transportation modes.
Michal Černý   +4 more
doaj   +2 more sources

EuroDRONE, a European Unmanned Traffic Management Testbed for U-Space

open access: yesDrones, 2022
EuroDRONE is an Unmanned Traffic Management (UTM) demonstration project, funded by the EU’s SESAR organization, and its aim is to test and validate key UTM technologies for Europe’s ‘U-Space’ UTM program.
Vaios Lappas   +12 more
doaj   +2 more sources

Remarks on monotonically star compact spaces [PDF]

open access: yesMathematica Bohemica, 2022
A space $ X $ is said to be monotonically star compact if one assigns to each open cover $ \mathcal{U} $ a subspace $ s(\mathcal{U}) \subseteq X $, called a kernel, such that $ s(\mathcal{U}) $ is a compact subset of $ X $ and $ {\rm St}(s(\mathcal{U ...
Sumit Singh
doaj   +1 more source

Unmanned Spacecrafts and Space Drones as the Challenges for Space Law [PDF]

open access: yesФилософия и космология, 2020
In the article, the authors considered the challenges for space law, which are created by the intensive development of production technologies of unmanned spacecrafts and space drones, as well as their use in the space industry. The authors clarified the
Svitlana Vyshnovetska, Volodymyr Melnyk
doaj   +1 more source

Air Traffic Management as a Vital Part of Urban Air Mobility—A Review of DLR’s Research Work from 1995 to 2022

open access: yesAerospace, 2023
Urban air mobility is a rapidly growing field of research. While drones or unmanned aerial vehicles have been operated mainly in the private and military sector in the past, an increasing range of opportunities is opening up for commercial applications ...
Bianca I. Schuchardt   +6 more
doaj   +1 more source

On the importance of neutral composition and temperature measurements in the 100–200 km altitude region

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Currently, thermospheric species densities and temperatures between ∼100 and 200 km are not known to the accuracy needed to fully characterize how the thermosphere transitions from a well-mixed atmosphere to a diffusively separated atmosphere with zero ...
McArthur Jones   +4 more
doaj   +1 more source

DI-5-Cuffs: Bone Remodelling and Associated Metabolism Markers in Humans After Five Days of Dry Immersion to Simulate Microgravity

open access: yesFrontiers in Physiology, 2022
Background: The dry immersion (DI) model closely reproduces factors of spaceflight environment such as supportlessness, mechanical and axial unloading, physical inactivity, and induces early increased bone resorption activity and metabolic responses as ...
Marie-Thérèse Linossier   +8 more
doaj   +1 more source

Predicting Marine In Situ Heat Flow Using a Geospatial Machine Learning Conformal Prediction

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Heat flow measurements over the past decades have drastically increased in number. However, even with vast increases in measurements, large geospatial gaps exist, most notably across Earth's oceans.
J. H. Graw, W. T. Wood, B. J. Phrampus
doaj   +1 more source

Identification, Categorisation and Gaps of Safety Indicators for U-Space

open access: yesEnergies, 2020
Many civilian applications of commercial unmanned aircraft are being planned to operate in the years ahead. Several countries have developed their own framework to design the operation of unmanned aircraft and the different services that demand safe ...
Javier Alberto Pérez-Castán   +4 more
doaj   +1 more source

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