Results 121 to 130 of about 3,413,392 (339)

Aircraft Wake Vortex Measurement with Coherent Doppler Lidar

open access: yesEPJ Web of Conferences, 2016
Aircraft vortices are generated by the lift-producing surfaces of the aircraft. The variability of near-surface conditions can change the drop rate and cause the cell of the wake vortex to twist and contort unpredictably.
Wu Songhua, Liu Bingyi, Liu Jintao
doaj   +1 more source

Digital twins in aircraft production and MRO: challenges and opportunities

open access: yesCEAS Aeronautical Journal
The digital twin (DT) concept, value-adding connecting the real and digital world, has been a rising trend in recent years, while the implementation and observation of challenges are still subject to research. Implementations of holistic Digital Twins of
Keno Moenck   +6 more
semanticscholar   +1 more source

Quality assessment of Automatic Dependent Surveillance Contract (ADS-C) wind and temperature observation from commercial aircraft

open access: yes, 2012
. Aircraft observations of wind and temperature are very important for upper air meteorology. In this article, the quality of the meteorological information of an Automatic Dependent Surveillance-Contract (ADS-C) message is assessed.
S. Haan, L. Bailey, J. E. Können
semanticscholar   +1 more source

Utilization of satellite imagery by in-flight aircraft [PDF]

open access: yes
Present and future utilization of satellite weather data by commercial aircraft while in flight was assessed. Weather information of interest to aviation that is available or will become available with future geostationary satellites includes the ...
Luers, J. K.
core   +1 more source

Method for observing the features characterizing the surface of a land mass [PDF]

open access: yes, 1980
A method is described where a propeller driven, hydrazine powered aircraft is remotely piloted through rarefied atmosphere of a selected planet, including the planet Earth.
Reed, R. D.
core   +1 more source

Automated Feature Extraction and Classification of Submerged Cultural Heritage Assets in the Puck Lagoon via Multisensor Remote Sensing

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This study presents a strong framework for the detection and classification of Submerged Cultural Heritage Assets (SCHA) in shallow marine environments using the integration of multibeam echosounder and airborne LiDAR bathymetry with object‐based image analysis and fuzzy logic–based classification.
Łukasz Janowski   +4 more
wiley   +1 more source

Bowtie Methodology for Risk Analysis of Visual Borescope Inspection during Aircraft Engine Maintenance

open access: yesAerospace, 2019
Background—The inspection of aircraft parts is critical, as a defective part has many potentially adverse consequences. Faulty parts can initiate a system failure on an aircraft, which can lead to aircraft mishap if not well managed and has the ...
Jonas Aust, Dirk Pons
doaj   +1 more source

YOLO-SAD: An Efficient SAR Aircraft Detection Network

open access: yesApplied Sciences
Aircraft detection in SAR images of airports remains crucial for continuous ground observation and aviation transportation scheduling in all weather conditions, but low resolution and complex scenes pose unique challenges.
Junyi Chen   +4 more
semanticscholar   +1 more source

Aircraft Wake Vortex Observations in Hong Kong

open access: yesLeida xuebao, 2017
The Hong Kong International Airport (HKIA) is among the busiest airports in the world, with total aircraft movement exceeding 400,000 in 2016. The Hong Kong Observatory (HKO), provider of aviation meteorological services to HKIA, has recently begun making the first sets of aircraft wake vortex observations at HKIA using short-range LIDARs.
Hon Kaikwong, Chan Pakwai
openaire   +1 more source

A Prospection‐Led Archaeological Investigation of a Picenian and Roman Necropolis in Corinaldo (Marche, Italy)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This paper presents the results of an integrated archaeological and geophysical investigation conducted between 2018 and 2024 at the newly discovered Picenian and Roman necropolis of Contrada Nevola (Corinaldo, Marche, Central Italy), identified in the framework of development‐led archaeology. The research strategy combined aerial photography,
Federica Boschi
wiley   +1 more source

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