Results 51 to 60 of about 47,757 (245)

Vegetation Dynamics in Ecuador [PDF]

open access: yes, 2019
Global forest cover has suffered a dramatic reduction during recent decades, especially in tropical regions, which is mainly due to human activities caused by enhanced population pressures.
González-Jaramillo, Víctor Hugo
core   +1 more source

Monitoring post-fire forest recovery using multi-temporal Digital Surface Models generated from different platforms [PDF]

open access: yes, 2016
Wildfires can greatly affect forest dynamics. Given the alteration of fire regimes foreseen globally due to climate and land use changes, greater attention should be devoted to prevention and restoration activities.
Aicardi, Irene   +5 more
core   +1 more source

Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials

open access: yesAdvanced Robotics Research, EarlyView.
Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira   +5 more
wiley   +1 more source

Application of Unmanned Aerial Vehicle Remote Sensing for Agricultural Monitoring [PDF]

open access: yesE3S Web of Conferences
Precision agriculture and Smart farming have become the essential backbone for sustainable agricultural production by leveraging cutting-edge remote sensing and communication technologies.
Han Yuyao
doaj   +1 more source

Discussion on Problem and Methods of Monitoring Sediment Deposition of Warping Dams in Loess Plateau

open access: yesShuitu baochi tongbao, 2022
[Objective] A scientific monitoring methods for sediment-retaining amount in check dams were studied in order to provide practical support for accurately obtaining the sediment-retaining amount, and to realize the safe operation of check dams and the ...
Jianguo Zhang   +3 more
doaj   +1 more source

Effects of saline reclaimed waters and deficit irrigation on Citrus physiology assessed by UAV remote sensing [PDF]

open access: yes, 2017
The aim of our research was to discover the effects of the long-term irrigation with saline reclaimed (RW) and transfer (TW) water and different irrigation strategies: control (C) and regulated deficit irrigation (RDI) on yield and fruit quality of ...
Alarcón Cabañero, Juan José   +7 more
core   +3 more sources

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

open access: yesAdvanced Science, EarlyView.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo   +4 more
wiley   +1 more source

Aluminium Feeds for Reflector for NadirSAR [PDF]

open access: yes, 2018
With the long term aim of developing a NadirSAR quadrotor UAV system specialized for monitoring broad acre grain fields, a large aperture load bearing antenna to use as the main structural element was sort.
Gray, Derek, Le Kernec, Julien
core   +1 more source

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

open access: yesAdvanced Science, EarlyView.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır   +4 more
wiley   +1 more source

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