Results 21 to 30 of about 36,642 (249)

Designing Unmanned Aerial Survey Monitoring Program to Assess Floating Litter Contamination

open access: yesRemote Sensing, 2022
Monitoring marine contamination by floating litter can be particularly challenging since debris are continuously moving over a large spatial extent pushed by currents, waves, and winds.
Sílvia Almeida   +6 more
doaj   +1 more source

Salmonella in broiler litter and properties of soil at farm location. [PDF]

open access: yesPLoS ONE, 2009
Contamination of litter in a broiler grow-out house with Salmonella prior to placement of a new flock has been shown to be a precursor of the flock's Salmonella contamination further down the production continuum.
Victoriya V Volkova   +2 more
doaj   +1 more source

Are opportunistic captures of neonate ungulates biasing relative estimates of litter size?

open access: yesAnimal Biotelemetry, 2022
The capture of neonate ungulates allows for the collection of valuable ecological data, including estimates of litter size. However, varied methods used to capture neonate ungulates can result in sampling biases.
Matthew T. Turnley   +7 more
doaj   +1 more source

Automatic Detection of Marine Litter: A General Framework to Leverage Synthetic Data

open access: yesRemote Sensing, 2022
The spatial and temporal coverage of spaceborne optical imaging systems are well suited for automated marine litter monitoring. However, developing machine learning-based detection and identification algorithms requires large amounts of data.
Manon Nagy   +4 more
doaj   +1 more source

Mapping litter decomposition by remote-detected indicators

open access: yesAnnals of Geophysics, 2006
Leaf litter decomposition is a key process for the functioning of natural ecosystems. An important limiting factor for this process is detritus availability, which we have estimated by remote sensed indices of canopy green biomass (NDVI). Here, we describe the use of multivariate geostatistical analysis to couple in situ measures with hyper-spectral ...
Sabetta L.   +7 more
openaire   +7 more sources

Marine Litter Windrows: A Strategic Target to Understand and Manage the Ocean Plastic Pollution

open access: yesFrontiers in Marine Science, 2021
Windrow is a long-established term for the aggregations of seafoam, seaweeds, plankton and natural debris that appear on the ocean surface. Here, we define a “litter windrow” as any aggregation of floating litter at the submesoscale domain (<10 km ...
Andrés Cózar   +7 more
doaj   +1 more source

Advancing deep learning-based detection of floating litter using a novel open dataset

open access: yesFrontiers in Water, 2023
Supervised Deep Learning (DL) methods have shown promise in monitoring the floating litter in rivers and urban canals but further advancements are hard to obtain due to the limited availability of relevant labeled data.
Tianlong Jia   +5 more
doaj   +1 more source

MINI UAV-BASED LITTER DETECTION ON RIVER BANKS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Most of the anthropic pollution arriving to seas and oceans is carried by rivers, leading to a dramatic impact on the aquatic flora and fauna. Hence, several strategies have already been considered to reduce the use of plastic (and non biodegradable ...
I. Cortesi   +3 more
doaj   +1 more source

Hyperspectral Imaging Zero-Shot Learning for Remote Marine Litter Detection and Classification

open access: yesRemote Sensing, 2022
This paper addresses the development of a novel zero-shot learning method for remote marine litter hyperspectral imaging data classification. The work consisted of using an airborne acquired marine litter hyperspectral imaging dataset that contains data ...
Sara Freitas, Hugo Silva, Eduardo Silva
doaj   +1 more source

Organoarsenicals in poultry litter: Detection, fate, and toxicity

open access: yesEnvironment International, 2015
Arsenic contamination in groundwater has endangered the health and safety of millions of people around the world. One less studied mechanism for arsenic introduction into the environment is the use of organoarsenicals in animal feed. Four organoarsenicals are commonly employed as feed additives: arsanilic acid, carbarsone, nitarsone, and roxarsone ...
Kiranmayi P. Mangalgiri   +2 more
openaire   +2 more sources

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