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128 results for “Vortex”
SMART Radar and WSR-88D Data Associated with "Mobile Radar Observations of Hurricanes at Landfall. Part II: Convectively Coupled Vortex Rossby Waves"
<p>The data contained in this archive are associated with "Mobile Radar Observations of Hurricanes at Landfall. Part II: Convectively Coupled Vortex Rossby Waves" in review in the <em>Journal of the Atmospheric Sciences</em>. Two sets of data associated with Hurricanes Isabel (2003) and Matthew (2016) are contained. Each subset of data contains the raw radar files that contribute to the manuscript in cfradial netCDF format.</p> <p>A readme file in included that describes the variables and format of the radar volume files. Questions about the dataset may be directed to addisonalford@ou.edu, drdoppler@ou.edu, or gordon.carrie-1@ou.edu.</p>
Second dataset on diffraction patterns of electron vortex beams generated by the electrostatic chopstic/MINEON device- CL340
<p>Franhofer diffraction dataset of electron vortex beams (EVBs) generated by the chopstic/MINEON device observed with a Camera Length of 340m on the K2 camera of the Titan Holo present in the Ernst-Ruska Centre at FZ-Julich. In this dataset, which can be accessed through Digital Micrograph and STEM_Cell it is possible to observe how by changing the potential difference between the two tips (main electrodes of the device) the radius of the EVB increases. A striking feature is that the radius increases almost linearly with the Orbital Angular Momentum. The analisys of this dataset can be found.at <strong>https://arxiv2203.00477.org/abs/</strong></p>
First Dataset of electron vortex beams observed in the fraunhofer plane of the chopstic/MINEON device - CL205m
<p>Franhofer diffraction dataset of electron vortex beams (EVBs) generated by the chopstic/MINEON device observed with a Camera Length of 205m on the K2 camera of the Titan Holo present in the Ernst-Ruska Centre at FZ-Julich. In this dataset, which can be accessed through Digital Micrograph and STEM_Cell it is possible to observe how by changing the potential difference between the two tips (main electrodes of the device) the radius of the EVB increases. A striking feature is that the radius increases almost linearly with the Orbital Angular Momentum. The analisys of this dataset can be found.at https://arxiv.org/abs/2203.00477</p>
Third dataset on diffraction patterns of electron vortex beams generated by the electrostatic chopstic/MINEON device- CL23
<p>Franhofer diffraction dataset of electron vortex beams (EVBs) generated by the chopstic/MINEON device observed with a Camera Length of 23m on the K2 camera of the Titan Holo present in the Ernst-Ruska Centre at FZ-Julich. In this dataset, which can be accessed through Digital Micrograph and STEM_Cell it is possible to observe how by changing the potential difference between the two tips (main electrodes of the device) the radius of the EVB increases. A striking feature is that the radius increases almost linearly with the Orbital Angular Momentum. The analisys of this dataset can be found.at https://arxiv.org/abs/2203.00477</p>
VORTEX 01: Analytic solution of the flow, aeroacoustic source and acoustic field from a co-rotating vortex pair
<div>This aeroacoustic reference example (often referred in literature as "Co-rotating vortex pair") provides the analytic solution of the flow, aeroacoustic source and acoustic field. Details on the example and derivation can be found in the article "Analysis of the co-rotating vortex pair as a test case for computational aeroacoustics" on which the analytic functions are based on can be found here: <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.jsv.2024.118496" target="_blank" rel="noopener">10.1016/j.jsv.2024.118496</a>. The following Matlab functions can be used for computing the aero-acoustic radiation of a co-rotating vortex pair:</div> <div> </div> <div><strong>Main script:</strong></div> <div>compute_pfar - Computes the radiated acoustic field. Use the "method" variable to change the aeroacoustic model</div> <div> </div> <div><strong>Computing the source terms:</strong></div> <div>vpair_pic - Incompressible pressure field p_ic and Dp_ic / Dt at a given time instance</div> <div>vpair_u - Velocity field u, and its first and second spatial derivatives at a given time instance</div> <div> </div> <div>plot_source_terms - Create a plot of the source terms of both Lighthill and PCWE</div> <div>plot_quadrupole_field - Plots the analytical quadrupole field solution</div> <div> </div> <div><strong>Utility functions used by the main script:</strong></div> <div>gaussquad - Gauss-Legendre quadrature in 1D (original version from Mathworks FTP)</div> <div>subdiv_graded - Graded subdivision of one or more sections in 1D</div> <div>vpair_quadrature - Quadrature base points and weights for numerical convolution</div> <div> </div> <div><strong>Resource:</strong></div> <div>colormap.png - Blue -> Gray -> Red color scale</div> <div> </div> <div>All functions and scripts, except gaussquad.m were created by the authors:</div> <div>P. Rucz, M. Á. Ulveczki, J. Heinz, S. Schoder</div>
Acoustic field parameters of acoustic vortex
Open the record for dataset details and reuse information.
Data on the acoustic field in experiments with an acoustic vortex in the air
Open the record for dataset details and reuse information.
Generation of vortex beams with large OAM
<p>This dataset contains TEM micrographs of custom apertures realized on Au-coated SiN membranes via FIB milling used for the realization of electron beams with large OAM (l = 500 and l = 1000).</p>
Vortex input files -- Linking habitat and population viability analysis models of a metapopulation of Florida scrub-jays
<p>Vortex input files for manuscript "<span>Linking </span><span><span>habitat and population viability analysis models to account for <span>vegetation dynamics, habitat fragmentation, and social behavior of a metapopulation of Florida scrub-jays</span></span></span>" by R. C. Lacy, D. B. Breininger, et al. </p>
Efficiency of thermoremanent magnetization acquisition in vortex-state particle assemblies: Dataset and Codes
<p>When magma cools, crystallized magnetic minerals can record the ambient magnetic field. If these mineral grains are sufficiently small, they may retain that magnetic record for billions of years. This phenomenon enables paleomagnetists to study the direction and intensity of ancient magnetic fields on Earth and other planets. A key task is determining the number of magnetic particles required to reliably record such a field, as well as understanding the influence of grain size and shape on this process. Here, we present a dataset from the study titled "Efficiency of Thermoremanent Magnetization Acquisition in Vortex-State Particle Assemblies," which integrates micromagnetic modeling and probabilistic magnetic state partitioning to address these questions. The dataset includes codes for the micromagnetic simulations and data from all the simulations conducted.</p>
Abb. 1 in Wiederentdeckung der verschollenen Wasserschneckenarten Anisus vortex (LINNAEUS 1758) und Ferrissia wautieri (MIROLLI 1960) in Salzburg (Gastropoda, Planorbidae)
Abb. 1: Anisus vortex aus der Stadt Salzburg. Rasterelektronenmikroskopische Aufnahme.
Vortex under scrutiny, Collet, 2021
<ul> <li>Data.zip : Zip folder containing data files and R codes (9034 files).</li> <li>ReadMe_Collet_2021 : Read me file that provide details of the content of the zip folder.</li> </ul>
Vortex dynamics induced by scanning SQUID susceptometry
<p>We measured the local magnetic response of a niobium thin film by applying a millitesla-scale AC magnetic field using a micron-scale field coil and detecting the response with a micron-scale pickup loop in a scanning superconducting quantum interference device (SQUID) susceptometry measurement. Near the film's critical temperature, we observed a step-like nonlinear and dissipative magnetic response due to the dynamics of a small number of vortex-antivortex pairs induced in the film by the local applied AC field. We modeled the dynamics of the measurement using a combined two-dimensional London-Maxwell and time-dependent Ginzburg-Landau approach, allowing us to construct a detailed real-space picture of the vortex motion causing the observed dissipative response. This work pushes scanning SQUID susceptometry of two-dimensional superconductors beyond the regime of linear response and lays the foundation for microscopic studies of vortex dynamics and pinning in superconducting devices and more exotic materials systems.</p>
Reproducibility Package for Predictive Limitations of Physics-Informed Neural Networks in Vortex Shedding
<p>This archive contains the repro-pack for the paper at <a href="http://github.com/barbagroup/jcs_paper_pinn">https://github.com/barbagroup/jcs_paper_pinn</a>.</p>
Reproducibility Package (Raw Data) for Predictive Limitations of Physics-Informed Neural Networks in Vortex Shedding
<p>Raw data results from the simulations using PINN methods and PetIBM for the paper at: https://github.com/barbagroup/jcs_paper_pinn</p>
Supplementary animations for "Scalar dark matter vortex stabilization with black holes"
<p>Supplementary animations for <a href="https://doi.org/10.48550/arXiv.2301.13220">Scalar dark matter vortex stabilization with black holes</a>, <a href="https://arxiv.org/abs/2301.13220">arxiv:2301.13220, </a><a href="https://doi.org/10.1088/1475-7516/2023/07/004">https://doi.org/10.1088/1475-7516/2023/07/004</a></p>
Vortex input files for PVA on Southern Resident Killer Whales
<p>Input files for publication:</p> <p>Lacy, R.C., R. Williams, E. Ashe, K.C. Balcomb III, L.J.N. Brent, C.W. Clark, D.P. Croft, D.A. Giles, M. MacDuffee, and P.C. Paquet. 2017. Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans. Scientific Reports 7:14119. doi: 10.1038/s41598-017-14471-0.</p>
DIY-Concert Ensemble Vortex- Works by Rama Gottfried, Alessandro Perini and David Bird
<p>Hybrid Performance by Ensemble Vortex of the following works: </p> <p>- Apophänie. 2017. Video-Puppetry-Instrument, by Rama Gottfried (00:00-11:13)</p> <p>- Three Studies for Two Voices. 2017. Two performers, by Alessandro Perini (11:14-20:08)</p> <p>- Dark Ethnography. 2020. Four flashlight operators and cello, by David Bird (20:23-33:29) </p>
Vortex project file for PVA of Southern Resident Killer Whale -- manuscript by Williams et al.
<p>Project file for Vortex PVA scenarios used in Williams et al. manuscript. </p> <p><span>Williams, R., R.C. Lacy, E. Ashe, L. Barrett-Lenard, T.M. Brown, J.K. Gaydos, F. Gulland, M. </span><span>MacDuffee, B.W. Nelson, K.A. Nielsen, H. Nollens, S. Raferty, S. Reiss, P.S. Ross, M.S. Collins, R. Stimmelmayr, & P. Paquet. 2024. Warning sign of an accelerating decline in critically endangered killer whales (<em>Orcinus orca</em>). Communications Earth & Environment (in press).</span></p>
Codes and dataset associated to the paper "Quantifying the impacts of the angle of attack on the morphology of atmospheric von Kármán vortex streets"
<p>Here you can find some codes and dataset used for the paper:</p> <p>"Quantifying the impacts of the angle of attack on the morphology of atmospheric von Kármán vortex streets":</p> <p>- WRF: namelist.wps, namelist.input and myoutfields.txt;</p> <p>- Python script: Rotation.py that allows to rotate the variables of interest in the WPS geo_em.do* files and Fig3.py that allows to reproduce the plot of the Figure 3 of the paper;</p> <p>- Dataset: km_profile.npy, PT_profile.npy, Wspd_profile.npy and z.npy, the four arrays required as input for the script Fig3.py. The z.npy array reports the height for the lower 28 eta-levels (up to about 2000 m) and in the other three arrays you can find the hourly mean values of potential temperature (PT_profile.npy), wind speed (WSPD_profile.npy) and eddy viscosity (km_profile.npy).</p> <p> </p>
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International Brain Laboratory public data
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OpenNeuro
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