Results 111 to 120 of about 182,284 (271)

Radar studies of the vertical distribution of insects migrating over southern Britain: the influence of temperature inversions on nocturnal layer concentrations

open access: yes, 2005
Insects migrating over two sites in southern UK (Malvern in Worcestershire, and Harpenden in Hertfordshire) have been monitored continuously with nutating vertical-looking radars (VLRs) equipped with powerful control and analysis software.
A.S. Edwards   +20 more
core   +1 more source

Large‐scale characterization of horizontal forest structure from remote sensing optical images

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Sub‐meter resolution remote sensing data and tree crown segmentation techniques hold promise in offering detailed information that can support the characterization of forest structure from a horizontal perspective, offering new insights in the tree crown structure at scale.
Xin Xu   +12 more
wiley   +1 more source

Technical Analyses of the Interference Effect of “Advanced Radar”

open access: yesJournal of Measurement Science and Instrumentation, 2010
The conception of "advanced radar" is introduced and put forward,while it is proved that the weakpoints of interference can still be employed.Meanwhile,the paper expounds the principle how Over-The-Horizon Radar(OTHR)works,and derives the OTHR ...
Xi-xiang ZHANG1, Zhong-jie ZHANG2
doaj  

Association of tracks from over the horizon radar

open access: yes, 1998
In Over-The-Horizon Radar (OTHR), multiple ionospheric layers cause several tracks per target to be observed. This effect causes ambiguities in target identification and track coordinate registration.
Bouzerdoum, A.   +3 more
core   +1 more source

Revealing Hidden Impact: Social and Solidarity Economy Enterprise Networks and Sustainable Development in Developing Countries

open access: yesSustainable Development, EarlyView.
ABSTRACT The Social and Solidarity Economy (SSE) offers strong potential for sustainable development in low‐income regions, yet its enterprises often operate with scarce resources, weak monitoring systems, and limited visibility. These constraints hinder both their capacity to demonstrate contributions to sustainable development (SD) and their own ...
Maria‐del‐Mar Magallón   +1 more
wiley   +1 more source

Robust Altitude Estimation For Over-The-Horizon Radar Using A

open access: yes, 2007
In previous work, a matched-field estimate of aircraft altitude from multiple over-the-horizon radar dwells was presented. This approach exploits the altitude dependence of direct and surface reflected returns off the aircraft and the relative phase ...
State-Space Model For   +3 more
core  

Tourism as a Catalyst for Blue Carbon Restoration and Conservation: Pathways, Gaps, and Opportunities

open access: yesSustainable Development, EarlyView.
ABSTRACT Tourism is a major driver of coastal economies worldwide, yet it is also a growing source of pressure on blue carbon ecosystems (BCEs) such as mangroves, seagrasses, and salt marshes. Nowadays, tourism‐led conservation/restoration is increasingly promoted under the banner of regenerative tourism, but how these projects are motivated ...
Ahalya Suresh   +5 more
wiley   +1 more source

A 2D processing algorithm for detecting landmines using Ground Penetrating Radar data [PDF]

open access: yes, 2012
Ground Penetrating Radar(GPR) is one of a number of technologies that have been used to improve landmine detection efficiency. The clutter environment within the first few cm of the soil where landmines are buried, exhibits strong reflections with ...
Cockshott, W.P., Sengodan, A.
core  

Examining the Role of Economic Complexity and Climate Readiness in the Climate‐Fishing Nexus

open access: yesSustainable Development, EarlyView.
ABSTRACT This paper investigates the climate‐fisheries association in Gulf Cooperation Council (GCC) nations from 1999 to 2022. A key objective is to explore the role of both the economic complexity index (ECI) and the climate readiness factor (READ) in the climate‐fishing nexus.
Mohamed Sami Ben Ali   +2 more
wiley   +1 more source

Surface Engineering of Ti3C2Tx MXenes via Silanol Functionalization for Improved Electrochemical Performance

open access: yesSmall, EarlyView.
This study explores the covalent functionalization of Ti3C2Tx using 5,5′‐bis(triisopropoxysilyl)‐2,2′‐bipyridine in different solvents, revealing that only m‐xylene enables effective covalent bonding, ensuring structural stability and preventing layer swelling.
Abelardo Sánchez‐Oliva   +11 more
wiley   +1 more source

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