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5,371 results for “Flow”
Flow cytometric abundances in Flathead Lake, Montana
<p>Three years of both non-pigmented and cyanobacteria cellular abundances in temperate, oligotrophic Flathead Lake, recorded on an Attune Accoustic Focusing flow cytometer. Lake water was collected from Flathead Lake's main sampling location 'Midlake Deep' (47° 52´ N, 114° 4´ W) at 5 depths (5 m, 10 m, 50 m, 90 m, and the depth-variable chlorophyll maximum).</p> <p>Data presented in: Evans, K. A., L. M. Peoples, J. R. Ranieri, E. K. Wear, and M. J. Church. 2023. Mixing-driven changes in distributions and abundances of planktonic microorganisms in Flathead Lake.</p>
A suspended hot drop of 1,3-propanediol with 4.1 mm base diameter, 190oC core temperature, and approaching air flow at 0.34 m/s, recorded at 10,000 fps and 99 ms exposure time, with default video playback speed 30 fps
<p>A suspended hot drop of 1,3-propanediol with 4.1 mm base diameter, 190<sup>o</sup>C core temperature, and approaching air flow at 0.34 m/s, recorded at 10,000 fps and 99 ms exposure time, with default video playback speed 30 fps</p>
A Data-facilitated Numerical Method for Richards Equation to Model Water Flow Dynamics in Soil Dataset
<p>This dataset contains the reference solutions used for training the two neural networks in 1-, 2- and 3-D cases for the article:"A Data-facilitated Numerical Method for Richards Equation to Model Water Flow Dynamics in Soil" by Zeyuan Song and Zheyu Jiang, submitted to the journal Water Resources Research. </p> <p>This dataset which describes the relationship between the pressure head and number of particles used to train two MLPs in D-GRW based solvers consists of three files, i.e., 1-, 2- and 3-D case study. There are two parts, original reference solutions and reference solutions, corresponding to the original solutions generated by coarse mesh solvers and solutions after data augmentation process, respectively.The dataset is generated by GRW based solvers and simulation results (e.g., Celia's finite difference method). Original reference solutions admit GRW proportionality assumption. We initialize the number of particles by multiplying the initial condition and 1E10. </p>
Experimental recordings of cross-flow vortex-induced vibrations on slender free-clamped ends cylinder and cylinder with a pair of branches in constant uniform flow for different reduced velocities.
<p>Dataset of the experiments done on a cylinder (N=0) and a coral model (N=1) 3D-printed with SLS out of TPE material. Cross-flow VIV are recorder with a GoPro in a test section of a water tunnel for different reduced velocities (Ur). </p> <p>This was made for our publication "Modelling vortex-induced vibrations of branched structures by coupling a 3D-corotational frame finite element formulation with wake-oscillators" in the Journal of Fluids and Structures.</p>
Dataset for Multiphase turbulent flow explains lightning rings in volcanic plumes
<p>Datasets for all figures in "Multiphase turbulent flow explains lightning rings in volcanic plumes." Data comes from observations of the Hunga Tonga-Hunga Ha’apai (HTHH) eruption on January 15, 2022, and from numerical simulations of the Boussinesq equations with inertial particles using the GHOST code. Observational data is provided in CSV and Matlab FIG format. Data from numerical simulations is provided in NetCDF files with Python scripts giving examples on how to read the files.</p>
DataSet: Partial Discharge Power Flow in Gas-Insulated Substations Using Magnetic and Electric Antennas
<p>Dataset of the measurements presented in the paper "Partial Discharge Power Flow in Gas-Insulated Substations Using Magnetic and Electric Antennas" in the conference ISH 2023</p>
Dataset: Magnetic and electric antennas synergy for partial discharge measurements in gas-insulated substations: Power flow and reflection suppression
<p>Data set for the publication named: Magnetic and electric antennas synergy for partial discharge measurements in gas-insulated substations: Power flow and reflection suppression. Each header corresponds to the figure and legend.</p>
Depressurization of CO2 in a pipe: Effect of initial state on non-equilibrium two-phase flow – dataset
<p>This dataset contains data from depressurization of pure CO<sub>2</sub> in a tube from a dense-liquid state. The data are described in the accompanying paper (DOI: <a href="https://doi.org/10.1016/j.ijmultiphaseflow.2023.104624">10.1016/j.ijmultiphaseflow.2023.104624</a>).</p> <p>Test number; fluid; pressure (MPa); temperature (deg C):<br> 19; CO2; 12.47; 10.2<br> 22; CO2; 12.48; 14.9<br> 23; CO2; 12.19; 31.5<br> 24; CO2; 11.56; 35.8<br> </p> <p> </p>
Data and code from Pierson et al. "Revisiting a cryptic species complex: interspecific gene flow among woodland salamanders in the Blue Ridge Mountains of northern Georgia"
<p>ABSTRACT</p> <p>The complex topography of mountainous landscapes can create biogeographic barriers and promote allopatric speciation—even among morphologically cryptic species. However, these biogeographic barriers are rarely permanent, and secondary contact between previously independently evolving populations may result in hybridization and introgression. Here, we use genome-wide SNP data to reexamine a classic example of cryptic species in the Appalachian Mountains: the slimy salamander (<em>Plethodon glutinosus</em>) species complex. This group of morphologically similar terrestrial salamanders includes 14 species with parapatric distributions across the eastern United States. In this study, we focused on the Chattahoochee Slimy Salamander in northern Georgia and used a series of complementary phylogenomic and population genomic analyses to evaluate spatial genetic structure within this species and demonstrate admixture with at least four other species of parapatric woodland salamanders. Our results highlight the utility of genomic data in clarifying species boundaries and underscore the difficulty of species delimitation in organisms with complex evolutionary histories.</p>
Riverine flow rate drives widespread convergence in the shell morphology of imperiled freshwater mussels
<p>Frequent and strong morphological convergence suggests that determinism tends to supercede historical contingencies in evolutionary radiations. For many lineages living within the water-column of rivers and streams, hydrodynamic forces drive widespread morphological convergence. Living below the sediment-water interface may release organisms from these hydrodynamic pressures, permitting a broad array of morphologies and thus less convergence. However, here, we show that the semi-infaunal freshwater mussels have environmentally determined convergence in shell morphology. Using 3D morphometric data from 715 individuals among 164 Nearctic species, we find that species occurring in rivers with high flow rates have evolved traits that resist dislodgement from their burrowed position in the streambed: thicker shells for their body size, with the thickest sector of the shell being the most deeply buried. Species occurring in low-flow environments have evolved thinner and more uniformly thickened shells, corresponding to an alternative adaptation to dislodgement: increased burrowing efficiency. Within species, individuals also show increased shell thickness for their body size at higher flow rates, suggesting that ecophenotypy may, in part, be an important mechanism for establishing populations in new environments and thus evolutionary divergence in this highly imperiled invertebrate group.</p>
Digital Elevation Models (DEMs) after the Shovi (Caucasus) debris flow, 13 August 2023
<p>===========================</p><p>Introduction</p><p>On 4 August 2023, a large debris flow struck the mountain resort town of Shovi in Georgia. More on this event here : <a href="https://eos.org/thelandslideblog/the-4-august-2023-debris-flow-at-shovi-in-georgia">https://eos.org/thelandslideblog/the-4-august-2023-debris-flow-at-shovi-in-georgia</a></p><p>Two Pléiades stereo images were acquired after the event on 13 August 2023, thanks to the activation of the CIEST² (<a href="https://www.poleterresolide.fr/ciest-2-nouvelle-generation-2/">https://www.poleterresolide.fr/ciest-2-nouvelle-generation-2/</a>) scheme.</p><p>We share here the Pléiades DEMs derived from these images. The collection includes four files:</p><p>Shovi_2023-08-13a_DEM_2m.tif</p><p>Shovi_2023-08-13a_DEM_20m.tif</p><p>Shovi_2023-08-13b_DEM_2m.tif</p><p>Shovi_2023-08-13b_DEM_20m.tif</p><p>===========================</p><p>Methods</p><p>The Pléiades stereo-images were processed using the Ames Stereo Pipeline (ASP, Beyer et al., 2018), yielding a DEM in 2x2m and 20x20 m GSD and an orthoimage in 0.5x0.5m GSD. The processing was done using as only input the stereo-images and their orientation information, as Rational Polynomial Coefficients (RPCs). The parallel_stereo routine performs all the steps needed in the correlation of the stereo-images, yielding a pointcloud which is then interpolated using the routine point2dem. We used the semi global matching algorithm and the set of processing parameters from Deschamps-Berger et al. (2020)</p><p>Beyer, R. A., Alexandrov, O., and McMichael, S.: The Ames Stereo Pipeline: NASA's Open Source Software for Deriving and Processing Terrain Data, Earth and Space Science, 5, 537–548, https://doi.org/10.1029/2018EA000409, 2018.</p><p>Deschamps-Berger, C., Gascoin, S., Berthier, E., Deems, J., Gutmann, E., Dehecq, A., Shean, D., and Dumont, M.: Snow depth mapping from stereo satellite imagery in mountainous terrain: evaluation using airborne laser-scanning data, The Cryosphere, 14, 2925–2940, https://doi.org/10.5194/tc-14-2925-2020, 2020.<br><br>===========================</p><p>Data Specifications:</p><p>Cartographic projection: UTM zone 38N (EPSG:32638)</p><p>Origin of Elevation: meters above WGS84 ellipsoid</p><p>Raster data format: GeoTIFF</p><p>NoData value : -9999</p><p>Pléiades dataset includes only DEMs because a licence needs to be signed with CNES to access Pléiades imagery. Please contact the authors for further information on this.</p><p>===========================</p><p>Acknowledgements: </p><p>Pléiades images were provided under the CIEST² initiative (CIEST2 is part of ForM@Ter (https://en.poleterresolide.fr/) (Pléiades © CNES 2023, distribution AIRBUS DS)</p><p>===========================</p><p>Dataset Attribution:</p><p>This dataset is licensed under a Creative Commons CC BY-NC 4.0 International License (Attribution-NonCommercial).</p><p>===========================</p><p>Citation:</p><p>Please cite this repository as described below:</p><p>Etienne Berthier. (2023). Digital Elevation Models (DEMs) after the Shovi flood (Caucasus), 13 August 2023</p>
research data for the article Elenius et al, 'Where can rewetting of forested peatland reduce extreme flows?'
<p>This dataset includes data of changes in hydrology when rewetting of drained forested peatland is performed. Details are explained in the companion article, Elenius et al, 'Where can rewetting of forested peatland reduce extreme flows?'</p> <p>Data worksheets and columns are described on the readme worksheet in the file.</p>
Database of MMS busty bulk flows including their ionospheric footpoints
<p>The new version includes</p> <ul> <li>The field-line tracing boundary was corrected</li> </ul>
Premature Newborns Treated With Less Invasive Surfactant Administration Under Heated Humidified High-flow
ClinicalTrials.gov study NCT06398691. IPD Sharing: YES. Countries: 1. Publications: 3.
Inspiratory Flow Rates Achieved by the COPD Patients Through Breezhaler®, Ellipta® and Handihaler® Inhaler Devices
ClinicalTrials.gov study NCT02596009. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Physiological Flow of Liquids Used in Dysphagia Management (Neuro)
ClinicalTrials.gov study NCT03192358. IPD Sharing: NO. Countries: 1. Publications: 2.
The LAVA (Lateral Flow Antigen Validation and Applicability) Study for COVID-19
ClinicalTrials.gov study NCT04629157. IPD Sharing: NO. Countries: 1. Publications: 1.
The Effects of Dexmedetomidine and Propofol on Cerebral Blood Flow and Brain Oxygenation During Deep Brain Stimulation
ClinicalTrials.gov study NCT01200433. IPD Sharing: NO. Countries: 1. Publications: 1.
Vertebrobasilar Flow Evaluation and Risk of Transient Ischemic Attack and Stroke (VERiTAS)
ClinicalTrials.gov study NCT00590980. IPD Sharing: Not stated. Countries: 2. Publications: 8.
Cadmium-zinc-telluride (CZT) Imaging of Myocardial Blood Flow (MBF) (SPECT MBF)
ClinicalTrials.gov study NCT02280941. IPD Sharing: NO. Countries: 1. Publications: 3.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.