Results 131 to 140 of about 268,742 (315)
Path-Planning for Unmanned Aerial Vehicles with Environment Complexity Considerations: A Survey
ACM Computing Surveys, 2023 Michael R. Jones +2 more
semanticscholar +1 more source
InfoMat, EarlyView.To address the low through‐plane thermal conductivity (λ⊥) of carbon fiber/epoxy composites, which poses thermal management challenges in the expanding low‐altitude economy, we incorporated spherical thermally reduced graphene (s‐TRG) as a bridging filler. This architectural design achieved a λ⊥ of 2.73 W m–1 K–1 at 10 wt% loading.
Shengyuan Gao +5 more
wiley +1 more source
, 2019 The interest in electric unmanned aerial vehicles (UAVs) is rapidly growing in recent years. The reason is that UAVs have abilities to perform some difficult or dangerous tasks, with high mobility, safety, and low cost.
Mohamed Nadir Boukoberine +2 more
semanticscholar +1 more source
Land Degradation &Development, EarlyView.ABSTRACT Forest ecosystems play a critical role in the global carbon cycle. As a significant terrestrial carbon sink, plantations exhibit carbon stock patterns that are shaped by tree species composition, stand structure, and environmental conditions. Here, we investigated typical plantation types in the Mufu Mountain, Hubei Province.
Mingyang Ding +5 more
wiley +1 more source
Uncertainty assessment for a novel optically shallow water radiometric acquisition platform
Limnology and Oceanography: Methods, EarlyView.Abstract We present a novel motorized platform, a custom‐built jet‐ski designed for acoustic and radiometric measurements in optically shallow coastal waters. This platform integrates in‐water radiometers with single‐beam and multi‐beam acoustic sensors, along with a suite of active and passive instruments (conductivity‐temperature‐depth, fluorescence,
Raphaël Mabit +2 more
wiley +1 more source
Advances in Mechanical Engineering, 2019 Unmanned aerial vehicles may collide with obstacles, such as trees or other unmanned aerial vehicles, while flying. A waypoint-based flight path is an approach to avoid such obstacles. To specify waypoints for the safe flight of unmanned aerial vehicles,
Jeonghoon Kwak, Yunsick Sung
doaj +1 more source
Dynamic model and control of a new quadrotor unmanned aerial vehicle with tilt-wing mechanism [PDF]
, 2008 In this work a dynamic model of a new quadrotor aerial vehicle that is equipped with a tilt-wing mechanism is presented. The vehicle has the capabilities of vertical take-off/landing (VTOL) like a helicopter and flying horizontal like an airplane ...
Aksit, Mahmut Faruk +11 more
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Marine litter can shift sea turtle nests toward the shoreline
Oikos, EarlyView.Marine litter is an emerging threat to sea turtle rookeries, yet its effects on nesting behaviour remain poorly understood. In this study, we investigated how macro‐litter accumulation on beaches influences the spatial distribution of loggerhead turtle Caretta caretta nests on Boa Vista Island, Cabo Verde.
Diana Sousa‐Guedes +4 more
wiley +1 more source
The Need for Fundamental Photovoltaics Research to Ensure Energy Security
Progress in Photovoltaics: Research and Applications, EarlyView.The center of this graphic focuses on the core of this paper—that fundamental research is central to the continued development of the photovoltaic (PV) industry. To the left, we have depictions of what is being studied—PV materials, PV cell structures, and PV module structures.
Rebecca Saive +14 more
wiley +1 more source
Mitigating ground effect on mini quadcopters with model reference adaptive control [PDF]
, 2019 Mitigating ground effect becomes a big challenge for autonomous aerial vehicles when they are flying in close proximity to the ground. This paper aims to develop a precise model of ground effect on mini quadcopters, provide an advanced control algorithm ...
Chan, SN, Kong, Z, Lee, S, Wei, P
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