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295 results for “Approximation”
Piecewise Lognormal Approximation Aerosol Model (PAM) data files
<table> <tbody> <tr> <td>File</td> <td>Format</td> <td>Description</td> </tr> <tr> <td>ACTDAT1</td> <td>ASCII</td> <td>Lookup table for aerosol activation</td> </tr> <tr> <td>COAGDAT</td> <td>ASCII</td> <td>Lookup table for aerosol coagulation</td> </tr> <tr> <td>SSDAT</td> <td>ASCII</td> <td>Lookup table for sea salt aerosol optical properties</td> </tr> </tbody> </table> <p>License: https://open.canada.ca/en/open-government-licence-canada</p>
Analytical approximations of the characteristics of the nighttime hydroxyl on Mars and intra-annual variations
<p>The data for Solar System Research article figures.</p>
Distribution. Sub-Saharan Africa; virtually eradicated from W Africa, and greatly reduced in C and NE Africa. The largest populations exist in Botswana, Tanzania, and Zimbabwe, which account for approximately half of the estimated number of African Wild Dogs remaining in the wild. Other populations occur in Central African Republic, Ethiopia, Kenya, Mozambique, Namibia, South Africa, Sudan, and Zambia. Potential small populations (less than 100 individuals) may exist in Cameroon, Chad, Senegal, and Somalia. in Canidae
Distribution. Sub-Saharan Africa; virtually eradicated from W Africa, and greatly reduced in C and NE Africa. The largest populations exist in Botswana, Tanzania, and Zimbabwe, which account for approximately half of the estimated number of African Wild Dogs remaining in the wild. Other populations occur in Central African Republic, Ethiopia, Kenya, Mozambique, Namibia, South Africa, Sudan, and Zambia. Potential small populations (less than 100 individuals) may exist in Cameroon, Chad, Senegal, and Somalia.
Theoretical investigations on shadow band correction factors for diffuse radiation under isotropic conditions without approximation dataset
<p>The database consists of: </p> <p>1. The data for the correction factors C<sub>h</sub> and C<sub>e </sub> (<strong>Data file for factors Ch and Ce</strong>);</p> <p>2. The data for figures 20, 21 and 22 (<strong>Data file for Figure 20, 21 and 22</strong>) ;</p> <p>3. The data for figure 23 (<strong>Data file for Figure 23</strong>) ;</p> <p>4. The data for figure 24 (<strong>Data file for Figure 24</strong>) ;</p> <p>5. The data for figure 25 (<strong>Data file for Figure 26</strong>) ;</p> <p>6. The data for figure 26 (<strong>Data file for Figure 26</strong>);</p> <p>7. The data for figure 27 (<strong>Data file for Figure 27</strong>) ;</p> <p>8. The data for figure 28 (<strong>Data file for Figure 28</strong>) ;</p> <p>9. The data for the correction factors C<sub>h</sub>, C<sub>e</sub> and C<sub>B</sub> (<strong>Data file of comparison with Burek</strong>) ;</p> <p>10. The data for the correction factors C<sub>h</sub>, C<sub>e</sub> and C<sub>D</sub> (<strong>Data file of comparison with Drummond</strong>);</p> <p>11. Reference 7 (<strong>Michael J. Brooks and Lance W. Roberts (2016)</strong>)</p>
Distribution. NE Madagascar, extremely limited distribution in the far N of the island, just to the S of Antsiranana (= Diégo-Suarez), it was formerly believed to inhabit both dry and humid forests from the Montagne d' Ambre region S to the Mahavavy River near Ambilobe in the W, and probably to the Fanambana River S of Vohémarin the E. However, with the recognition of the Ankarana Sportive Lemur (L. ankaranensis) as a distinct species, the range of the Sahafary Sportive Lemur was reduced to a handful of very small remnant forest patches nearthe villages of Madirobe and Ankarongana in the Sahafary region, and in the immediate vicinity of Andrahona, a small mountain rising out of the surrounding lowlands about 30 km south of Antsiranana and E of the RN6 main road. Recent faunal surveys in the Montagne des Francais, a calcareous massif of c.6114 ha approximately 12 km SE of Antsiranana, listed the Sahafary Sportive Lemur as one of the species occurring there, but this needs to be confirmed; it may be widerranging than the Ankarana Sportive Lemur. in Lepilemuridae
Distribution. NE Madagascar, extremely limited distribution in the far N of the island, just to the S of Antsiranana (= Diégo-Suarez), it was formerly believed to inhabit both dry and humid forests from the Montagne d' Ambre region S to the Mahavavy River near Ambilobe in the W, and probably to the Fanambana River S of Vohémarin the E. However, with the recognition of the Ankarana Sportive Lemur (L. ankaranensis) as a distinct species, the range of the Sahafary Sportive Lemur was reduced to a handful of very small remnant forest patches nearthe villages of Madirobe and Ankarongana in the Sahafary region, and in the immediate vicinity of Andrahona, a small mountain rising out of the surrounding lowlands about 30 km south of Antsiranana and E of the RN6 main road. Recent faunal surveys in the Montagne des Francais, a calcareous massif of c.6114 ha approximately 12 km SE of Antsiranana, listed the Sahafary Sportive Lemur as one of the species occurring there, but this needs to be confirmed; it may be widerranging than the Ankarana Sportive Lemur.
Distribution. Borneo, SE Kalimantan, approximately S of the Mahakam River and E of the Barito River. in Hylobatidae
Distribution. Borneo, SE Kalimantan, approximately S of the Mahakam River and E of the Barito River.
Subspecies and Distribution. S. l. leucotis Bailey, 1902 — Y-shaped distributional pattern in Mexico from approximately 27° N latitude in the Sierra Madre Occidental and 25° N in the Sierra Madre Oriental SE into the C part of the Transvolcanic Beltas far S as the state of Mexico. S. I alticola Bailey, 1902 — montane areas from N Puebla S to NW Oaxaca. in Cricetidae
Subspecies and Distribution. S. l. leucotis Bailey, 1902 — Y-shaped distributional pattern in Mexico from approximately 27° N latitude in the Sierra Madre Occidental and 25° N in the Sierra Madre Oriental SE into the C part of the Transvolcanic Beltas far S as the state of Mexico. S. I alticola Bailey, 1902 — montane areas from N Puebla S to NW Oaxaca.
Wave-current Coupling Effects on the Variation Modes of Pore Pressure Response in a Sandy Seabed: Physical Modeling and Explicit Approximations
<p>This is experimental data of combined wave-current induced pore pressure. The corresponding test condition is given in the title of each excel. The channels 4, 2, 1 represent the wave height data measured by the WHGs just above PPTs, in the upstream, and in the downstream, respectively. The channels 6, 8, 3, 7 are pore pressure data monitored by PPTs installed at 0, 6, 9, and 15 cm below the seabed surface, respectively.</p>
Discontinuous Galerkin spatial discretisation of the neutron transport equation with pyramid finite elements and a discrete ordinate (SN) angular approximation.
<p>In accordance with EPSRC funding requirements this folder contains all raw data relevant to the named paper: </p> <p>Discontinuous Galerkin spatial discretisation of the neutron transport equation with pyramid finite elements and a discrete ordinate (SN) angular approximation.</p> <p><br> Journal: Annals of Nuclear Energy</p> <p> </p>
Supplementary Dataset for the Paper: "Parameter-Adaptive Approximate MPC: Tuning Neural-Network Controllers without Re-Training"
<p>Supplementary dataset for paper Hose, Henrik, Alexander Gräfe, and Sebastian Trimpe. "Parameter-Adaptive Approximate MPC: Tuning Neural-Network Controllers without Re-Training." <em>arXiv preprint arXiv:2404.05835</em> (2024).</p> <p>The code to use this dataset is publicly available at <a href="https://github.com/hshose/Adaptive-AMPC-Cartpole">https://github.com/hshose/Adaptive-AMPC-Cartpole</a></p> <p>The dataset contains training and testing data to train an NN controller for a standart cartpole system.</p> <p>For each system, there are initial conditions as comma separated value in the `x0.txt` file, the MPC input trajectory in the `U.txt` file and the corresponding predicted state sequence in the `X.txt` file. Additionally, sensitivities (i.e. gradients dU/dtheta with respect to some system parameters theta) are provided in a file called `J.txt`.</p>
Gaussian approximation of dispersion potentials for efficient featurization and machine-learning predictions of metal–organic frameworks
<p>Scripts and data for the publication</p>
Models and Data for "Approximate Atmospheric Scattering using PINNs"
Open the record for dataset details and reuse information.
Approximate solutions for ideal dam-break sediment-laden flows on uniform slopes: Data deposit
<p>This data deposit contains all the datasets needed to draw Figures 3-18 in the paper "Approximate solutions for ideal dam-break sediment-laden flows on uniform slopes", which is now under consideration for publication in Water Resources Research. </p>
FIGURE 3. Pine forest habitat approximately 2 in A new species of Cyllopsis R. Felder, 1869 from the highlands of Chiapas, Mexico (Lepidoptera: Nymphalidae: Satyrinae)
FIGURE 3. Pine forest habitat approximately 2 kilometers NW of the type locality of C. tomemmeli, about 12 kilometers SE of San Cristóbal de Las Casas, Chiapas, Mexico, March 26, 1959, photo by Thomas C. Emmel.
An approximation of inner boundary conditions for wells intersecting highly conductive structures
<p>Inner boundary conditions describe the interaction of groundwater wells with the surrounding aquifer during pumping and are associated with well-skin damage that limits water production and water derived from wellbore storage. Pumping test evaluations of wells during immediate and early-time flow require assignment of inner boundary conditions. Originally, these concepts were developed for vertical well screens, and later transferred to wellbores intersecting highly conductive structures, such as preferential flow zones in fractured and karstic systems. Conceptual models for pumping test analysis in complex bedrock geology are often simplified. Classic analytical solutions generally lump or ignore conditions that limit or enhance well productivity along the well screen at the onset of pumping.</p> <p>Numerical solutions can represent well drawdowns in complex geological settings, such as karst systems, more precisely than many analytical solutions by accounting for additional physical processes and avoiding assumptions and simplifications. Suitable numerical tools for flow simulations in karst are discrete pipe-continuum models that account for various physical processes such as the transient hydraulics of wellbores intersecting highly conductive structures during pumping.</p> <p>https://doi.org/10.1111/gwat.12947</p>
Beyond the mean-field approximation for pair correlations in classical density functional theory: reference inhomogeneous non-associating monomeric fluids for use with SAFT-VR Mie DFT. JCP 2024
<p>All DFT calculations and molecular simulation data in the publication.</p>
Adaptive Rational Interpolation and Higher-order SVD for Low-rank Tensor Approximation in Structural Dynamics Simulations
<h1>Vibroacoustic Data Compression and Interpolation</h1> <p>This is the code that accompanies the paper</p> <blockquote> <p>Adaptive Rational Interpolation and Higher-order SVD for Low-rank Tensor Approximation in Structural Dynamics Simulations</p> </blockquote> <p>which we (Jan Heiland, Victor Gosea, Ulrich Römer, Davide Pradovera, Harikrishnan Sreekumar, Sabine Langer) submitted for presentation at the ECC-2025.</p> <p>See the <code>README.md</code> for information and instruction to reproduce the results of the paper.</p>
Beating classical heuristics for the binary paint shop problem with the quantum approximate optimization algorithm
<p>Data repository for the paper "Beating classical heuristics for the binary paint shop problem with the quantum" by Michael Streif, Sheir Yarkoni, Andrea Skolik, Florian Neukart, and Martin Leib.</p> <p> </p>
Supplementary materials for "Isothermal anelastic approximation"
<p>Supplementary materials for "Isothermal anelastic approximation"</p> <p>MARUYAMA, Kiyoshi. (2021, March 31). Isothermal anelastic approximation. Zenodo. http://doi.org/10.5281/zenodo.4656529</p>
VCF files of loci in approximate linkage equilibrium for two common spruce budworm larval parasitoids: Apanteles fumiferanae (Hymenoptera: Braconidae) and Glypta fumiferanae (Hymenoptera: Ichneumonidae)
<p>Periodic and spatially synchronous outbreaks of insect pests have dramatic consequences for boreal and sub-boreal forests. Within these multitrophic systems, parasitoids can be stabilizing agents by dispersing toward patches containing higher host density (the so-called <i>birdfeeder effect</i>). However, we know little about the dispersal abilities of parasitoids in continuous forested landscapes, limiting our understanding of the spatiotemporal dynamics of host–parasitoid systems, and constraining our ability to predict forest resilience in the context of global changes. In this study, we investigate the spatial genetic structure and spatial variation in genetic diversity of two important species of spruce budworm larval parasitoids during outbreaks: <i>Apanteles fumiferanae</i> Viereck (Braconidae) and <i>Glypta fumiferanae </i>(Viereck) (Ichneumonidae). Using parasitoids sampled in 2014 from 26 and 29 locations across a study area of 350,000 km<sup>2</sup>, we identified 1,012 and 992 neutral SNP loci for <i>A. fumiferanae</i> (<i>N</i> = 279 individuals) and <i>G. fumiferanae</i> (<i>N</i> = 382), respectively. Using DAPC, PCA, AMOVA, and IBD analyses, we found evidence for panmixia and high genetic connectivity for both species, matching the previously described genetic structure of the spruce budworm within the same context, suggesting similar effective dispersal during outbreaks and high parasitoid population densities between outbreaks. We also found a significant negative relationship between genetic diversity and latitude for <i>A. fumiferanae</i> but not for <i>G. fumiferanae</i>, suggesting that northern range limits may vary by species within the spruce budworm parasitoid community. These spatial dynamics should be considered when predicting future insect outbreak severities in boreal landscapes.</p>
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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.