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128 results for “shadows”
Image data of bright deposits in permanently shadowed craters on Ceres
<p>These are image data described in "Spectral properties of bright deposits in permanently shadowed craters on Ceres" by Schröder et al., published as Astronomy & Astrophysics 688 (2024) A178, doi:10.1051/0004-6361/202450247. The data correspond to the permanently shadowed craters on Ceres shown in Figs. 2 to 6 in the paper.</p> <p>There is a data set for each of the following permanently shadowed regions: NP04, NP05, NP07, and SP01. Each data set consists of 4 parts: (1) unprojected images in IMG format (header + binary), (2) unprojected images in FITS format, (3) projected images in IMG format, and (4) projected images in FITS format. The images contain reflectance values (I/F) in floating-point format. They are corrected for in-field stray light and have been registered to a global shape model to correct minor pointing errors. The data files are equipped with a rudimentary header.</p> <p>File name syntax: In "FC21B0045550_15282040820F2D.IMG", "FC2" is the camera model, "45550" is the image number, and "F2" is the filter.</p>
Fig. 10 in The research history of the Middle Triassic fishes of Monte San Giorgio: getting out of the shadow of aquatic reptiles
Fig. 10 Ticinolepis crassidens, reconstruction by the author based mainly on PIMUZ T 273
Fig.8 in The research history of the Middle Triassic fishes of Monte San Giorgio: getting out of the shadow of aquatic reptiles
Fig.8 Besania sp., reconstruction by the author based mainly on PIMUZ T 3927
Fig. 4 in The research history of the Middle Triassic fishes of Monte San Giorgio: getting out of the shadow of aquatic reptiles
Fig. 4 List of actinopterygian fishes from Monte San Giorgio compiled by Emil Kuhn-Schnyder (1964)
Fig. 2 in The research history of the Middle Triassic fishes of Monte San Giorgio: getting out of the shadow of aquatic reptiles
Fig. 2 Cover page of James Brough's book on the Triassic fishes of Besano, 1939
Process data for development of a digital material shadow for the press hardening route of medium manganese steel
<p>Press-hardened ultra-high strength steel parts are widely used in the automotive sector for their lightweight and safety advantages. Medium-Manganese Steels (MMnS) are being explored as an alternative to boron-manganese steels due to their high strength and ductility after quenching, achieved at lower annealing temperatures thus reducing energy usage and carbon emissions. However, industrial adoption of MMnS is hindered by challenging processing requirements, e.g. in cold-rolling and press hardening. To expedite and improve the process development, data-driven decisions based on process parameters hold promise. Establishing a link between process data and the final produced part necessitates the development of a framework for a Digital Material Shadow (DMS). This paper investigates the development of a DMS framework for the cold rolling and press hardening process chain. In conjunction with conventional data acquisition methods employed for cold rolling, novel data acquisition techniques are introduced specifically tailored for press hardening, ensuring the comprehensive availability of relevant data. Moreover, a data pipeline is implemented to enable automatic processing, visualization, and analysis of process data. To facilitate seamless data linkage across processes in the DMS, an ID-system is introduced. Finally, the developed framework’s validity is demonstrated by creating a DMS for press-hardened MMnS parts, showcasing its potential for practical applications.</p>
Example treatment of dynamic shadows in Eiger data set
<p>Following discussion in </p> <p> </p> <p>https://github.com/HDRMX/NXmx/wiki/Treatment-of-(Dynamic)-Shadows-in-Eiger-Data-Sets</p> <p> </p> <p>example Eiger data set with shadow mask added under /entry/shadow/dynamic_mask - uploading for discussion purposes only, data set may be revised in future. Clearly any and all are welcome to look at / inspect the files and provide commentary. </p> <p> </p> <p>N.B. the shadow model has not been optimised. </p>
Fig. 1 in Sentinels in the shadows: Exploring Toxoplasma gondii and other Sarcocystidae parasites in synanthropic rodents and their public health implications
Fig. 1. Geographical distribution of PCR positive rodents.
Data and Software for: Evidence for Water Ice in Lunar Permanently Shadowed Regions using neutrons, topography and temperature
<p>This archive contains both Data and Software archives that were used to develop and are described in the paper "Evidence for Widespread Hydrogen Sequestration within the Moon’s South Polar Cold Traps"<strong>. </strong>The paper is accepted in the Planetary Science Journal (PSJ), designated AAS46467R3</p> <p>The archive is a tarr'ed and compressed file with a Data and Software subdirectories.</p> <p>Software directory contains several programs written in the Interactive Data Language v. 8.8.3</p> <p>Data directory contains figures and output that were derived for the publication, in several forms</p> <p>The software analyzes public domain lunar south polar neutron, topography and temperature observations to show evidence for water ice in permanently shadowed regions and the latitude extent of observed water ice to 77 deg S. Input data are provided by NASA's Planetary Data System (PDS).</p> <p>Keywords: LEND, Lunar, LRO, topography, water, hydrogen, south pole, permanently shadowed region, temperature</p> <p> </p> <p> </p>
Data from: Detrital shadows: estuarine food web connectivity depends on fluvial influence and consumer feeding mode
We measured the influence of landscape setting on estuarine food web connectivity in five macrotidal Pacific Northwest estuaries across a gradient of freshwater influence. We used stable isotopes (δ13C, δ15N, δ34S) in combination with a Bayesian mixing model to trace primary producer contributions to suspension- and deposit-feeding bivalve consumers (Mytilus trossulus and Macoma nasuta) transplanted into three estuarine vegetation zones: emergent marsh, mudflat, Japanese eelgrass (Zostera japonica), and native eelgrass (Zostera marina). Fluvial discharge and consumer feeding mode strongly influenced the strength and spatial scale of observed food web linkages, while season played a secondary role. Mussels displayed strong cross-ecosystem connectivity in all estuaries, with decreasing marine influence in the more fluvial estuaries. Mussel diets indicated homogenization of detrital sources within the water column of each estuary. In contrast, the diets of benthic deposit-feeding clams indicated stronger compartmentalization in food web connectivity, especially in the largest river delta where clam diets were trophically disconnected from marsh sources of detritus. This suggests detritus deposition is patchy across space, and less homogenous than the suspended detritus pool. In addition to fluvial setting, other estuary-specific environmental drivers, such as marsh area or particle transport speed, influenced the degree of food web linkages across space and time, often accounting for unexpected patterns in food web connectivity. Transformations of the estuarine landscape that alter river hydrology or availability of detritus sources can thus potentially disrupt natural food web connectivity at the landscape scale, especially for sedentary organisms which cannot track their food sources through space.
Shadow Neural Radiance Fields for Multi-View Satellite Photogrammetry - Dataset
<p>Data accompanying the paper Derksen, Dawa, and Dario Izzo. "Shadow Neural Radiance Fields for Multi-view Satellite Photogrammetry." <em>Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition</em>. 2021.</p> <p>This dataset contains a subset of the World-View-3 images from the IEEE Data Fusion Competition 2019 - Track 3, downloaded from https://ieee-dataport.org/open-access/data-fusion-contest-2019-dfc2019.</p> <p>It is organized in four folders, one for each study area, following the original area names. Each folder contains a multi-view set of RGB images, cropped to the validation area, and rotated according to the azimuth angle. The folder also contains a Digital Surface Model of the area (DSM) as a one-band .tif file where the values contained in pixels represent the surface altitude in meters. Finally the folder contains a "metadata" file which provides for each image ID the radius (distance from satellite to scene), as well as the viewing and lighting directions (azimuth and elevation).</p> <p>The authors would like to thank the Johns Hopkins University Applied Physics Laboratory and IARPA for providing the data used in this study, and the IEEE GRSS Image Analysis and Data Fusion Technical Committee for organizing the Data Fusion Contest.</p>
Jupiter, Io and its shadow, by Ralf Burkart, Germany
<p>First place in the 2021 IAU OAE Astrophotography Contest, category Galilean moons.</p> <p>This time-lapse of Jupiter taken in 2017 from Germany beautifully illustrates the transit of one of the Galilean moons, Io, in front of Jupiter. As this is simply a moon casting a shadow on a planet it is equivalent to a lunar eclipse on Earth observed from further away. While the shadow of the moon is clearly visible from the beginning, it might be difficult to spot the moon itself against the background of the beautiful atmospheric bands of Jupiter the first time the video is seen. Watching it repeatedly allows appreciating the rapid motion and rotation in this fantastic observation.</p> <p>Credit: Ralf Burkart/IAU OAE</p>
Why We Eval in the Shadows (Dataset)
<p>Dataset for the artifact (https://doi.org/10.5281/zenodo.5415229) and the paper Why We Eval in the Shadows?<br> <br> It corresponds to the alternative step in the artifact, for those who want to reproduce our results without having a cluster, and with the same version of CRAN as we had.</p>
Triple shadow phenomena on Jupiter, Saturn and Uranus from 1000 CE to 3000 CE
<p>I computed all triple shadow phenomena of the major moons with their planet from 1000 CE to 3000 CE. I found 315 of such phenomena occurring on Jupiter, 303 on Saturn and 151 on Uranus. During the 2001 year period Saturn experiences 1 quadruple shadow phenomena meanwhile Uranus experiences 3 of such. I computed all shadow events of the Galilean moons with Jupiter, their mutual eclipses and the planet’s elongation from 1000 CE to 3000 CE with Occult 4.10.1.0 (files updated: 2020 March 20). I repeated the same procedure for Tethys, Dione, Rhea, Titan and Iapetus with Saturn and Miranda, Ariel, Umbriel, Titania and Oberon with Uranus. I then filtered the results to find triple and quadruple shadow events within the satellites and their respective primaries. Finally, I added the planet’s elongation for the event’s date above found and mutual eclipses only occurring during a triple or quadruple shadow event on the planet. I assumed that the Gregorian calendar commenced in 1582 October 4. Before that date, I used the Julian calendar. All times are in Universal Time. Minutes are rounded to the nearest tenth of a minute. For convenience, I used Arabic numbers to designate all satellites instead of Roman ones.</p>
Varjo kasvoilla - Shadow on the Face
FI: Wäinö Aaltonen: Varjo kasvoilla, 1924, pronssi, korkeus 45.00 cm. Varjo kasvoilla edustaa Aaltosen kubistis-futuristista vaihetta. Rinnakkaisnimi Antiikki ja nykyaika luo teokseen pohjavireen, jolla viitataan taiteen ikuisiin merkityksiin. Syvä varjo luo romantisoivan ajattomuuden kokemuksen. EN: Wäinö Aaltonen: Shadow on the Face, 1924, bronze, height 1'6"/45.00 cm. Shadow on the Face represents the Cubo-Futuristic period of Aaltonen. The parallel name "Antiquity and the Present" gives an undertone to the sculpture, referring to the eternal meanings of art. The deep shadow creates an experience of romanticizing timelessness. Scan: Artec Leo Photogrammetry and textures: Reality Capture Model and texture cleaning: Blender Roughness maps etc: Materialize Source: Objaverse 1.0 / Sketchfab
Data from: Detrital shadows: estuarine food web connectivity depends on fluvial influence and consumer feeding mode
Open the record for dataset details and reuse information.
Data from: From shadows to data: First robust population assessment of snow leopards in Pakistan
Open the record for dataset details and reuse information.
Supporting code, tables and data for: Megafrugivores as fading shadows of the past: Extant frugivores and the abiotic environment as the most important determinants of the distribution of palms in Madagascar
Open the record for dataset details and reuse information.
Data from: In the shadows: phylogenomics and coalescent species delimitation unveil cryptic diversity in a Cerrado endemic lizard (Squamata: Tropidurus)
The recognition of cryptic diversity within geographically widespread species is gradually becoming a trend in the highly speciose Neotropical biomes. The statistical methods to recognise such cryptic lineages are rapidly advancing, but have rarely been applied to genomic-scale datasets. Herein, we used phylogenomic data to investigate phylogenetic history and cryptic diversity within Tropidurus itambere, a lizard endemic to the Cerrado biodiversity hotspot. We applied a series of phylogenetic methods to reconstruct evolutionary relationships and a coalescent Bayesian species delimitation approach (BPP) to clarify species limits. The BPP results suggest that the widespread nominal taxon comprises a complex of 5 highly supported and geographically structured cryptic species. We highlight and discuss the different topological patterns recovered by concatenated and coalescent species tree methods for these closely related lineages. Finally, we suggest that the existence of cryptic lineages in the Cerrado is much more common than traditionally thought, highlighting the value of using NGS data and coalescent techniques to investigate patterns of species diversity.
Data from: Rain shadow effects predict population differences in thermal tolerance of leaf-cutting ant workers (Atta cephalotes)
<p>Tests of hypotheses for the evolution of thermal physiology often rely on mean temperatures, but mounting evidence suggests geographic variation in temperature extremes is also an important predictor of species' thermal tolerances. Although the tropics are less thermally variable than higher latitude regions, rain shadows on the leeward sides of mountains can experience greater diel and seasonal variation in temperature than windward sites. Rain shadows provide opportunities to test predictions about the relationships of extreme temperatures with thermal physiology while controlling for latitude. We tested the hypothesis that populations of leaf-cutting ants (Atta cephalotes) in leeward, montane, and windward sites in Costa Rica would differ in upper thermal tolerances (CT<sub>max</sub>) of workers. As predicted from rain shadow effects via extreme high temperatures, the leeward rain-shadow site yielded the highest mean CT<sub>max</sub> (rain shadow site 42.1±0.3 °C, Montane site 38.2±0.5 °C, windward site 38.2±0.3 °C). This suggests that high-temperature extremes in tropical rain shadow forests can select for higher thermal tolerances. CT<sub>max</sub> increased with worker body size within sites, but CT<sub>max</sub> increased with body size more gradually at the two lowland sites, as predicted if local high temperatures selected more strongly on the most thermally vulnerable society members (small workers). This suggests that warmer lowland climates selected for colonies with less variation in heat tolerance than cooler high elevation climates.</p>
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