Results 71 to 80 of about 189,925 (269)
Identification and modeling of the three rotational movements of a miniature coaxial helicopter [PDF]
, 2013 This paper presents the identification of a miniature coaxial helicopter system. First, the helicopter flying principles are described and the hardware setup of the developed platform is presented.
De Keyser, Robain +4 more
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Accurately estimating forest age is key to understanding how forests recover and evaluating restoration success. We developed a two‐step deep learning approach using historical greyscale aerial photographs to map forest age at fine spatial scales. By combining a pre‐trained model with localized fine‐tuning, our U‐Net + ResNet50 architecture achieved ...
Ying Ki Law +10 more
wiley +1 more source
A review of US Army aircrew-aircraft integration research programs [PDF]
If the U.S. Army's desire to develop a one crew version of the Light Helicopter Family (LHX) helicopter is to be realized, both flightpath management and mission management will have to be performed by one crew.
Aiken, E. W., Key, D. C.
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.This study investigates the integration of synthetic imagery, created with diffusion‐based models, to supplement limited training data and improve muskox (Ovibos moschatus) detection in zero‐shot (ZS) and few‐shot (FS) settings. ZS models detected more than 80% of muskoxen in real images, confirming the potential of synthetic data as a substitute for ...
Simon Durand +4 more
wiley +1 more source
Dynamic Stall Mechanisms of Pitching Airfoil: IDDES Study Across Different Mach Numbers
Applied SciencesThis study investigates dynamic stall mechanisms of a pitching NACA 0012 airfoil through high-fidelity computational fluid dynamics (CFD) simulations.
Simeng Jing +4 more
doaj +1 more source
The impact of urban operations on helicopter noise requirements [PDF]
The interrelationship of urban helicopter operations, helicopter noise, and the establishment of urban public-use heliports is discussed. Public resistance to urban helicopter operations due to concern for safety and noise is shown to negatively impact ...
Spector, S. R.
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Invasive alien species are a major threat for biodiversity worldwide and effective monitoring is paramount to inform management. In this study we used a multi‐season occupancy model to assess probability of detection between camera traps and passive acoustic recorders for feral pigs (Sus scrofa) during 1 year of data collection.
Marina D. A. Scarpelli +4 more
wiley +1 more source
, 2018 A kit (1) for a helicopter (2) is described, the helicopter (2) comprising a fuselage (3) and a rotor (4); the kit (1) comprises at least one device (15) adapted to dampen the vibrations transmitted from the rotor (4) to the fuselage (2) and to be interposed between the fuselage (2) and the rotor (4); the device (15), in turn, comprises a first ...
Bottasso, Luigi +4 more
openaire +3 more sources
NASA/HAA Advanced Rotorcraft Technology and Tilt Rotor Workshops. Volume 2: Operators' Views [PDF]
A special panel of helicopter users give presentations in 12 basic areas of helicopter applications.
core +1 more source
Cannabis Agritourism and Local Pathways Toward Sustainable Development Goals in Northern California
Sustainable Development, EarlyView.ABSTRACT Recent acceleration in global cannabis legalization offers a new context for examining the multiscale links between agritourism, sustainability, and international policy frameworks. In this study, Responsible Tourism is used to conceptualize cannabis agritourism in Northern California's Emerald Triangle as a strategy that may advance targets ...
Susan Dupej +2 more
wiley +1 more source