Results 121 to 130 of about 50,271 (288)

Methods to optimize optical sensing of biotic plant stress – combined effects of hyperspectral imaging at night and spatial binning

open access: yesPlant Methods
In spatio-temporal plant monitoring, optical sensing (including hyperspectral imaging), is being deployed to, non-invasively, detect and diagnose plant responses to abiotic and biotic stressors. Early and accurate detection and diagnosis of stressors are
Christian Nansen   +2 more
doaj   +1 more source

Results of precision processing (scene correction) of ERTS-1 images using digital image processing techniques [PDF]

open access: yes
ERTS-1 MSS and RBV data recorded on computer compatible tapes have been analyzed and processed, and preliminary results have been obtained. No degradation of intensity (radiance) information occurred in implementing the geometric correction.
Bernstein, R.
core   +1 more source

Morphometric and Paleobiological Insights Into Pleistocene Sicilian Wolf Populations

open access: yesActa Zoologica, EarlyView.
ABSTRACT The Pleistocene wolves (Canis lupus) from Sicily represent one of the few known insular populations of this species from that time period. Despite their potential relevance for understanding carnivore adaptations in insular contexts, no dedicated study has previously investigated their morphology and evolutionary significance.
Domenico Tancredi   +3 more
wiley   +1 more source

Democratising Multi‐Projector Displays

open access: yesComputer Graphics Forum, EarlyView.
Spatially augmented reality (SAR) transforms large, surround, collaborative experiences out of VR/AR headsets to the real world by merging content from projectors with the physical environment. This detailed state‐of‐the‐art survey reports on the advancements in multi‐projector aggregation and hardware technologies used to achieve SAR and build ...
Aditi Majumder, Muhammad Twaha Ibrahim
wiley   +1 more source

PFAS from a Discrete‐Event Terrestrial Source Migrates with Groundwater to Intertidal Seepages

open access: yesGroundwater, EarlyView.
PFAS is conveyed to the coastal intertidal zone from sources across the terrestrial landscape. Discharge of PFAS into the coastal ecosystem is complicated in space and time by the ongoing bi‐directional exchange of terrestrial groundwater and ocean water driven by tidal pumping within discharge areas.
Martin A. Briggs   +8 more
wiley   +1 more source

Integration of LANDSAT/ETM+ and CBERS-2/CCD images for change detection in the Amazon region under domain of transition forests [PDF]

open access: yesRevista Brasileira de Cartografia, 2005
Techniques for change detection were improved and applied to information extraction related to landscape monitoring. With the recent availability of CBERS-2/CCD data, the main objective of this research is to show the technique on “Radiometric rotation ...
Francisco Darío Maldonado   +2 more
doaj  

A 15.3 GHz satellite-to-ground diversity propagation experiment using a terminal separation of 4 kilometers [PDF]

open access: yes
The performance of a path diversity satellite-to-ground millimeter wave link with two ground terminals separated by 4 km is discussed. At this separation distance the duration of fades below 6 dB was decreased by at least a factor of 10 when using path ...
Grimm, K. R., Hodge, D. B.
core   +1 more source

P–T Modelling Constrains the Depth of Emplacement of the Porto Azzurro Pluton and Implies Minor Exhumation Caused by the Zuccale Fault (Island of Elba, Italy)

open access: yesJournal of Metamorphic Geology, EarlyView.
ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi   +4 more
wiley   +1 more source

Long-Term Assessment of Inter-Sensor Radiometric Biases Among SNPP, NOAA-20, NOAA-21 OMPS Nadir, and CrIS Instruments Using the NOAA ICVS-iSensor-RCBA Portal

open access: yesRemote Sensing
This study provides a comprehensive, long-term evaluation of inter-sensor radiometric calibration biases for the NOAA OMPS Nadir and CrIS instruments using four complementary validation methodologies implemented within the Inter-Sensor Radiometric Bias ...
Banghua Yan   +6 more
doaj   +1 more source

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews   +5 more
wiley   +1 more source

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