Results 51 to 60 of about 62,052 (226)
Advances in Triboelectric Nanogenerators With Rotating Structure
Carbon Energy, EarlyView.The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang +4 more
wiley +1 more source
Fault detection, identification and accommodation techniques for unmanned airborne vehicles [PDF]
, 2005 Unmanned Airborne Vehicles (UAV) are assuming prominent roles in both the commercial and military aerospace industries. The promise of reduced costs and reduced risk to human life is one of their major attractions, however these low-cost systems are yet ...
Cork, Lennon +2 more
core +1 more source
Application of an AIS to the problem of through life health management of remotely piloted aircraft [PDF]
, 2015 The operation of RPAS includes a cognitive problem for the operators(Pilots, maintainers, ,managers, and the wider organization) to effectively maintain their situational awareness of the aircraft and predict its health state.
Fan, Ip-Shing +3 more
core +1 more source
Сельскохозяйственные машины и технологии, 2021 It was noted that when forming the configurations of an unmanned aerial system for pesticide and fertilizer application, it is necessary to take into account the interdependence of unmanned and ground-based aerial systems.
L. A. Marchenko +3 more
doaj +1 more source
Energy Science &Engineering, EarlyView.This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak +2 more
wiley +1 more source
HyLPD Digital Twin Control for UAV Stability in High‐Wind Conditions
Optimal Control Applications and Methods, EarlyView.This work introduces a novel HyLPD, a hybrid control framework combining Linear Quadratic Regulator (LQR) for baseline stability and Deep Deterministic Policy Gradient (DDPG) for adaptive compensation, tailored for UAVs under high‐wind conditions.
Cara Rose +2 more
wiley +1 more source
Perception is Everything: Repairing the Image of American Drone Warfare [PDF]
, 2018 This thesis will trace the United States’ development of unmanned warfare from its initial use in the World Wars through the Cold War to its final maturation in the War on Terror.
Tubbs, Luke
core +1 more source
Risk Times in Mission‐Oriented Systems
Quality and Reliability Engineering International, EarlyView.ABSTRACT This article assesses risk times in mission‐oriented systems with high safety standards. We examine critical times under two safety policies. The first requires that the system's reliability function, known the first failure of the components, must exceed a reliability level throughout the mission.
Antonio Arriaza +2 more
wiley +1 more source
An operational solution to acquire multispectral images with standard light cameras : Characterization and acquisition guidelines [PDF]
, 2007 In order to develop a low-cost and easy to implement technical solution to map inside-field spatial variability, and to explore its relationship with crop conditions, several experiments were conducted using ultra-light aircraft and Unmanned Aerial ...
Bégué, Agnès +4 more
core
Unmanned Aerial Vehicle (UAV) for monitoring soil erosion in Morocco [PDF]
, 2012 This article presents an environmental remote sensing application using a UAV that is specifically aimed at reducing the data gap between field scale and satellite scale in soil erosion monitoring in Morocco. A fixed-wing aircraft type Sirius I (MAVinci,
D'Oleire-Oltmanns, Sebastian +3 more
core +1 more source