Results 91 to 100 of about 69,393 (296)

Harnessing Satellite Constellations as Signals of Opportunity for an Enhanced Specification of the Satellite Drag Environment in the Critical LEO Regime

Space Weather
Enhancing the accuracy of orbit predictions for low‐Earth orbit (LEO) satellites and debris is vitally important for satellite owner/operators dedicated to ensuring the safety and sustainability of the LEO environment.
D. J. Fitzpatrick, E. K. Sutton, M. D. Pilinski, S. E. Palo   +3 more
doaj   +1 more source

A study of the semiannual density variation in the upper atmosphere from 1958 to 1966, based on satellite drag analysis [PDF]

Semiannual density variation in upper atmosphere from 1958 to 1966 based on satellite drag ...
Campbell, I. G., Jacchia, L. G., Slowey, J. W.   +2 more
core   +1 more source

gLISA: geosynchronous Laser Interferometer Space Antenna concepts with off-the-shelf satellites

, 2014
We discuss two geosynchronous gravitational wave mission concepts, which we generically name gLISA. One relies on the science instrument hosting program onboard geostationary commercial satellites, while the other takes advantage of recent developments ...
Buchman, Sasha, DeBra, Daniel, Tilley, Scott, Tinto, Massimo   +3 more
core   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, EarlyView.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source

Utilizzo dei dati satellitari per la pianificazione urbanistica: il PUG del comune di Apricena

GEOmedia, 2010
Apricena Municipality: using satellite data for urban planning With the entry into force of the Documento Regionale di Assetto Generale (DRAG) Puglia Region has called the 'General Government and land use' for the drafting of the new General Urban Plan.
Vincenzo Barbieri
doaj   +2 more sources

Thermosphere model assessment for geomagnetic storms from 2001 to 2023

Journal of Space Weather and Space Climate
We present an updated study for thermosphere model assessment under geomagnetic storm conditions, defined when the geomagnetic index ap = 80 or larger.
Bruinsma Sean, Laurens Sophie
doaj   +1 more source

Young people's occupational aspirations beyond the aspiration discourse: A sociocultural perspective

British Educational Research Journal, EarlyView.
Abstract Young people's aspirations have been the focus of many educational, sociological and psychological studies. This paper argues, firstly, that the concept of aspirations holds greater generative potential than suggested by the policy‐oriented ‘aspiration discourse’.
Jelena Popov
wiley   +1 more source

The spread of non‐native species

Biological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

On Possible Measurement of Gravitational Interaction Parameters on Board a Satellite

, 1993
The recently suggested SEE (Satellite Energy Exchange) method of measuring the gravitational constant $G$, possible equivalence principle violation (measured by the E\"{o}tv\"{o}s parameter $\eta$) and the hypothetic 5th force parameters $\alpha$ and ...
Alexeev, A. D., Bronnikov, K. A., Kolosnitsyn, N. I., Konstantinov, M. Yu., Melnikov, V. N., Radynov, A. G.   +5 more
core  

Circular Economy Pathways for Airport Climate Change Mitigation

Business Strategy and the Environment, EarlyView.
ABSTRACT Airport operators face growing climate‐change pressures; the circular economy offers pathways to reduce impacts and recover resources. We examine how airport operators apply the circular economy in practice. We use an exploratory qualitative multicase design based on practitioner‐generated documents (e.g., press releases and sustainability ...
Michele Oppioli, Davide Calandra, Federico Lanzalonga, Paolo Biancone   +3 more
wiley   +1 more source