Results 111 to 120 of about 189,925 (269)
A Lightweight Convolutional Neural Network for Real-time Detection of Aircraft Engine Blade Damage
Journal of Applied Science and EngineeringTo address the large number of parameters and the computational complexity of deep learning models in the field of borescope detection, we propose a lightweight blade damage detection model LSSD using a knowledge distillation algorithm.
Wenzhe Wang +4 more
doaj +1 more source
Assessment of worm gearing for helicopter transmissions [PDF]
A high-efficiency hydrostatic worm gear drive for helicopter transmissions is assessed. The example given is for a large cargo helicopter with three 4000-kW engines and transmission reduction ratio of 110. Also contained are: an efficiency calculation, a
Chaiko, Lev
core +1 more source
Mars Science Helicopter Conceptual Design [PDF]
, 2020 Robotic planetary aerial vehicles increase the range of terrain that can be examined, compared to traditional landers and rovers, and have more near-surface capability than orbiters. Aerial mobility is a promising possibility for planetary exploration as
Balaram, Jayarao +15 more
core +1 more source
MSFFNet: Multiscale Feature Fusion Network for Small Target Detection in Remote Sensing Images
CAAI Transactions on Intelligence Technology, EarlyView.ABSTRACT With the advancement of satellite remote sensing technology, object detection based on high‐resolution remote sensing imagery has emerged as a prominent research focus in the field of computer vision. Although numerous algorithms have been developed for remote sensing image object detection, they still suffer from challenges such as low ...
Hui Zong +5 more
wiley +1 more source
Study of operational parameters impacting helicopter fuel consumption [PDF]
A computerized study of operational parameters affecting helicopter fuel consumption was conducted as an integral part of the NASA Civil Helicopter Technology Program.
Cross, J. L., Stevens, D. D.
core +1 more source
High Voltage, EarlyView.ABSTRACT Power lines in synthetic‐aperture radar (SAR) images are reflected as point signatures, which fluctuate annually in both the azimuth and range directions. A novel framework is proposed in this paper to evaluate the four‐dimensional dynamic status of power line sag using those point signatures in time‐series SAR images.
Sijie Ma +4 more
wiley +1 more source
Helicopter far-field acoustic levels as a function of reduced main-rotor advancing blade-tip Mach number [PDF]
During the design of a helicopter, the weight, engine, rotor speed, and rotor geometry are given significant attention when considering the specific operations for which the helicopter will be used. However, the noise radiated from the helicopter and its
Lemasurier, Philip +2 more
core +1 more source
The Helicopter Antenna Radiation Prediction Code (HARP) [PDF]
The first nine months effort in the development of a user oriented computer code, referred to as the HARP code, for analyzing the radiation from helicopter antennas is described.
Klevenow, F. T. +6 more
core +1 more source
The Political Quarterly, EarlyView.Abstract The 2024 UK general election saw candidates make frequent rhetorical references to parents and grandparents. But what are the political functions and implications of such references? Drawing together recent research in political psychology and sociology, this article interprets such references as attempts to articulate ‘vicarious identities ...
Joseph Haigh
wiley +1 more source
‘Reinventing’ the Beach? Lessons from a Local Development Plan in the French Riviera
The Political Quarterly, EarlyView.Abstract Coastal squeeze is now so tangible both globally and locally that the focus of scientific debate has expanded from the erosion of beaches to the risk of their disappearance. In this context, it is crucial to explore local development plans that aim to preserve the long‐term existence of a beach.
Isabelle Bruno, Grégory Salle
wiley +1 more source