Results 41 to 50 of about 599 (171)

Long-endurance remotely piloted aircraft systems (LE-RPAS) support for humanitarian logistic operations [PDF]

Journal of Humanitarian Logistics and Supply Chain Management, 2017
Purpose – While the use of long-endurance remotely piloted aircraft systems (LE-RPAS) is frequently associated with military operations, their core capabilities of long-range, low-cost and high-quality optics and communications systems have considerable ...
Peter Tatham, Catherine Ball, Yong Wu, Peter Diplas   +3 more
doaj   +1 more source

Quantification of gas, ash, and sulphate aerosols in volcanic plumes from open path Fourier transform infrared (OP-FTIR) emission measurements at Stromboli volcano, Italy

Frontiers in Earth Science, 2023
Field-portable Open Path Fourier Transform Infrared (OP-FTIR) spectrometers can be used to remotely measure the composition of volcanic plumes using absorption spectroscopy, providing invaluable data on total gas emissions.
Jean-François Smekens, Tamsin A. Mather, Mike R. Burton, Alessandro La Spina, Khristopher Kabbabe, Benjamin Esse, Matthew Varnam, Matthew Varnam, Roy G. Grainger   +8 more
doaj   +1 more source

Drone‐based radiotelemetry and imagery systems provide an advantage over traditional techniques for estimating survival of dependent juveniles

Wildlife Society Bulletin, EarlyView.
We used drone‐based radiotelemetry and multispectral imagery to estimate detection and survival probabilities of blue‐winged teal broods in Saskatchewan, Canada. Weekly brood survival probabilities, estimated via Cormack‐Jolly‐Seber models, increased with age and were comparable between drone methods.
Grant A. Rhodes, Dylan L. Bakner, Hannah C. Sabatier, Benjamin S. Sedinger, Christopher A. Nicolai, Kevin M. Ringelman   +5 more
wiley   +1 more source

A Post-Accident Analysis of Civil Remotely-Piloted Aircraft System Accidents and Incidents

Journal of Aerospace Technology and Management, 2017
A sample of 152 accidents and incidents involving Remotely Piloted Aircraft Systems, more commonly referred to as “drones”, have been analysed. The data was collected from a 10-year period, 2006 to 2015, conveniently sourced from a limited population ...
Graham Wild, Kellie Gavin, John Murray, Jose Silva, Glenn Baxter   +4 more
doaj  

COMPACT HYPERSPECTRAL IMAGING SYSTEM (COSI) FOR SMALL REMOTELY PILOTED AIRCRAFT SYSTEMS (RPAS) – SYSTEM OVERVIEW AND FIRST PERFORMANCE EVALUATION RESULTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
This paper gives an overview of the new COmpact hyperSpectral Imaging (COSI) system recently developed at the Flemish Institute for Technological Research (VITO, Belgium) and suitable for remotely piloted aircraft systems.
A. A. Sima, P. Baeck, D. Nuyts, S. Delalieux, S. Livens, J. Blommaert, B. Delauré, M. Boonen   +7 more
doaj   +1 more source

Validation of wind measurements from a multirotor RPAS-mounted ultrasonic wind sensor using a ground-based LiDAR system

Drone Systems and Applications, 2023
The aim of this research was to establish the validity of wind measurements from on board a multirotor Remotely Piloted Aircraft System (RPAS) for the purposes of wind monitoring applications.
Leo Scicluna, Tonio Sant, Robert N. Farrugia   +2 more
doaj   +1 more source

Spatiotemporal mapping the usable space of free‐roaming equids across the western United States

Wildlife Society Bulletin, EarlyView.
Identification of the inter‐decadal (2010‐2011) enhancement‐degradation gradients in the usable space for wild equid Herd Management Areas in the Great Basin, USA. Abstract Management of feral equids in the American West is hindered by the lack of a formal habitat map and monitoring system.
Alexander Hernandez, Eric Thacker, Kaden Patten, David Stoner   +3 more
wiley   +1 more source

The Unintended Consequences of German Deterrence

Global Policy, EarlyView.
ABSTRACT Germany's evolving deterrence posture boils down to continued participation in NATO nuclear sharing and an ambitious conventional rearmament program. Due to its non‐nuclear status and a result of decades of underinvestment, Germany prioritizes modern conventional weapons.
Ulrich Kühn
wiley   +1 more source

Outcrop and subsurface characterisation of a mixed tidal and wave‐influenced coastline (Triassic Red Beds, SE Spain)

Sedimentology, EarlyView.
ABSTRACT Paralic depositional systems are complex and heterogeneous sedimentary environments, presenting challenges for predicting reservoir architecture and connectivity. Their stratigraphic and facies variability arises from the dynamic interplay between fluvial, tidal and wave processes, and their sensitivity to sea‐level fluctuations, sediment ...
Luis Miguel Yeste, Marc Gil‐Ortiz, Neil David McDougall, Patricia Cabello, César Viseras   +4 more
wiley   +1 more source

Remotely Piloted Aircraft Systems and a Wireless Sensors Network for Radiological Accidents [PDF]

International Journal of Aerospace Engineering, 2016
In critical radiological situations, the real time information that we could get from the disaster area becomes of great importance. However, communication systems could be affected after a radiological accident. The proposed network in this research consists of distributed sensors in charge of collecting radiological data and ground vehicles that are ...
A. Reyes-Muñoz, J. Guerrero-Ibáñez, E. Pastor, M. Gasull, C. Barrado   +4 more
openaire   +4 more sources