Results 141 to 150 of about 31,692 (257)

Four-dimensional Drone Cluster Route Planning under the Constraint of Simultaneous Multi-objective Arrival

open access: yesKongzhi Yu Xinxi Jishu, 2019
It presented a design method for simultaneous arrival of multiple objective points under constraint of reaching simultaneously. The optimal target allocation part is realized through the Hungarian algorithm, and drones’ velocity segmented matrix is given
DONG Chengbo   +3 more
doaj  

Snow Water Storage Within Eight Pacific Coastal Watersheds in British Columbia (Canada) Inferred From Four Years of Airborne Lidar Data

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract Maritime mountain snowpacks are among the least understood and most poorly quantified components of global snow water storage, despite their vital role in sustaining water supplies and ecosystem health. Here, we present a 4‐year record of snow mass distribution across eight small‐to‐medium‐sized (5.2–63.4 km2) watersheds within the coastal ...
R. Bisset   +12 more
wiley   +1 more source

Analysis of Unmanned Aerial Vehicle (UAV) Type Multicopter for Improving the Quality of Air Photography in Kulonprogo Airport

open access: yesJournal of Applied Geospatial Information, 2018
In the world of photography is very closely related to the unmanned aerial vehicle called drones. Drones mounted camera so that the plane is pilot controlled from the mainland.
Indreswari Suroso, Erwhin Irmawan
doaj  

Evaluating Satellite Monitoring of Vegetation Health With Fauna Habitat Managers in Mind

open access: yesEcological Management &Restoration, Volume 27, Issue 2, May 2026.
ABSTRACT In Australia, pastoralists, not‐for‐profit, and government organisations are managing stands of open woodland to conserve threatened species' habitats. These land areas are usually larger than a cropping field but smaller than many National Parks in Australia.
Michael Hewson, Richard Koech
wiley   +1 more source

Computational Investigation on the Combined Effect of Applied Strain and Pore Configuration on Strain Concentrators in Additively Manufactured Metals

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 5, Page 1656-1679, May 2026.
ABSTRACT Metal additive manufacturing (AM) provides a pathway for creating highly optimized components that would be difficult to produce using traditional manufacturing methods. However, regardless of printing parameters or postprocessing, porosity remains a prevalent challenge in AM components because strain concentrates in the vicinity of the pore ...
Erick Adan Ramirez   +3 more
wiley   +1 more source

Contrail Formation Within Cirrus: Contrail Induced Perturbations and Cirrus Adjustments

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Contrail formation constitutes a large fraction of the aviation climate impact. But only part of the effect has been studied in detail, as research focused on contrail formation in cloud‐free air. Even though it is known that the impact of contrail formation within cirrus can be detected in space‐born remote sensing data, little research has ...
Pooja Verma, Ulrike Burkhardt
wiley   +1 more source

USE AND ADAPTATION OF CLASSIC ANTI-AIRCRAFT MISSILE SYSTEMS AGAINST DRONES

open access: yesReview of the Air Force Academy
The significant increase in the use of drones for military and civilian purposes has required the development of advanced solutions to counter them. Anti-aircraft missiles have become an essential defense tool due to their ability to detect, track and neutralize small and highly maneuverable aerial vehicles.
openaire   +1 more source

Transport to the Extratropical Stratosphere by Overshooting Storms in Idealized Simulations

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Deep convection is a significant source of water to the extratropical stratosphere which can alter radiative properties and contribute to ozone loss. Previous studies find it responsible for 40% of mid‐latitude water vapor above 380K. However, the amount of hydration from individual storms and the mechanisms that initiate mixing is less ...
Devin P. Bissell   +3 more
wiley   +1 more source

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