Results 71 to 80 of about 892,146 (336)
Independent power generator [PDF]
, 1978 A gas turbine powered aircraft auxiliary power system is described which is capable of efficiently supplying all aircraft auxiliary services both in flight and on the ground and is further capable of operating independently of the aircraft main engines ...
Young, R. N.
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Below Horizon Aircraft Detection Using Deep Learning for Vision-Based Sense and Avoid
, 2019 Commercial operation of unmanned aerial vehicles (UAVs) would benefit from an onboard ability to sense and avoid (SAA) potential mid-air collision threats. In this paper we present a new approach for detection of aircraft below the horizon.
Ford, Jason J. +2 more
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Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC
Advanced Robotics Research, EarlyView.The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang +7 more
wiley +1 more source
Safety for non-microlight pilots [PDF]
, 1999 Microlight aircraft are some of the safest, cheapest and most fun aircraft flying in the UK. The fatal accident rate, at around 1 per 30,000 flying hours is similar to that of General Aviation overall, and rather better than some parts of it in recent ...
Gratton, GB
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Advanced Science, EarlyView.Herein, waste fluororubbers undergo controlled oxidative degradation induced by alkali and hydrogen peroxide to yield carboxyl terminated liquid fluororubbers. Subsequently, condensation reaction system efficiently converts carboxyl groups into photoreactive vinyl groups.
Donghan Li +12 more
wiley +1 more source
The Impact of Government Policy on Technology Transfer: An Aircraft Industry Case Study [PDF]
, 2003 This case study explores the interaction between domestic and foreign governmental policy on technology transfer with the goal of exploring the long-term impacts of technology transfer. Specifically, the impact of successive licensing of fighter aircraft
King, David, Nowack, Mark L
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Prompting Interfacial Elastic Instability for Effective and Durable Icephobic Surfaces
Advanced Science, EarlyView.To address the inherent trade‐off between icephobicity and the mechanical strength of icephobic materials, a new icephobic material design strategy is proposed by integrating fibrous construction frameworks and icephobic polymer. The structure prompts interfacial elastic instability and the subsequent undulatory interfacial stress at ice/solid ...
Xinyu Fan +5 more
wiley +1 more source
Hangkong gongcheng jinzhanIn order to optimize the low-speed characteristics of the high-lift configuration of civil transport aircraft and enhance the take-off and landing performance of the aircraft，it is necessary to control the flow separation of the wings.
YAN Wei +9 more
doaj +1 more source
Current Progress and Challenges of Electromagnetic Wave Absorbing Materials at High Temperature
Advanced Science, EarlyView.This review explains three dielectric loss mechanisms of electromagnetic wave absorbing materials under high temperatures and the high temperature testing technology is explained. The research progress of carbon‐based, ceramic‐based and metamaterial‐based electromagnetic wave absorbers is analyzed.
Zhixiao Wang +5 more
wiley +1 more source
Social-ecological soundscapes: examining aircraft-harvester-caribou conflict in Arctic Alaska [PDF]
, 2017 Thesis (M.S.) University of Alaska Fairbanks, 2017As human development expands across the Arctic, it is crucial to carefully assess the impacts to remote natural ecosystems and to indigenous communities that rely on wild resources for nutritional and ...
Stinchcomb, Taylor R.
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