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677 results for “inversion”
Refractivity inversions from point-to-point X-Band radar propagation measurements
<p>Dynamic refractive environments within the marine atmospheric boundary layer (MABL) pose difficulties in the prediction of super high frequency (SHF), specifically X-band, radar wave propagation due to natural phenomena such as evaporation ducts (ED). This study utilizes a unique dataset collected during the CASPER-East field campaign, including multiple refractivity estimation methods and twelve point-to-point (PTP) electromagnetic datasets, to assess the efficacy of PTP inversion techniques for remote sensing of atmospheric refractivity within the MABL. Comparison of refractivity between the inverse and other refractivity methods show reasonable evaporation duct height estimates by the inversion, and inverse-based propagation predictions are also shown to be more accurate than propagation based on other refractivity prediction methods – numerical weather prediction, theory, and <i>in-situ</i> atmospheric measurements. These results propose the effectiveness of a PTP metaheuristic radar inversion to remotely sense refractive environments from radar propagation measurements in stable and unstable atmospheric conditions.</p>
Datasets for the integration of MT data with magnetic inversion: proof-of-concept using synthetic data and field application
<p>This dataset is a companion dataset to the manuscript "<strong>Utilisation of probabilistic MT inversions to constrain magnetic data inversion: proof-of-concept and field application</strong>", by Jérémie Giraud, Hoël Seillé, Mark D. Lindsay, Gerhard Visser, Vitaliy Ogarko, and Mark W. Jessel. <br><br>It contains models and data shown in the paper.<br><br>The document was submitted for publication in Solid Earth: <br>https://se.copernicus.org/preprints/se-2021-124/se-2021-124-manuscript-version2.pdf<br><br>The folder organisation is as follows, where <strong>bold</strong> refers to folders and subfolders, and text in <i>italic</i> corresponds to a succinct description of the contents.<br><br>|-- <strong>Dataset_synth</strong> > <i>synthetic dataset and results</i><br>| |-- <strong>Mag </strong>> <i>magnetic data and models: inversion and results </i><br>| | |-- <strong>domains </strong>> <i>contains the files used to define domains for inversion</i><br>| | |-- <strong>inversion results </strong>> <i> contains subfolders with inversion results for different cases </i><br>| | | |--<strong> case a </strong><br>| | | |--<strong> case b</strong><br>| | | |--<strong> case c</strong><br>| | | |-- <strong>case d</strong><br>| | | |-- <strong>case e</strong><br>| | | |-- <strong>case f </strong><br>| | |-- <strong>membership values</strong> > <i>contain files with membership values for the cases (a)-(f)</i><br>| | |-- <strong>responses </strong>> <i>simulated data with and without noise</i><br>| | |-- <strong>true model </strong>> <i>true model used for simulation</i><br>| |-- <strong>MT </strong>> <i>MT probabilities, sites information and models</i><br>| | |-- <strong>probabilities </strong>> <i>MT-derived probabilities</i><br>| | |-- <strong>responses </strong>> <i>simulated MT data</i><br>| | | |-- <strong>edi_noise_5p </strong>> <i> 5% noise-contaminated data (*.edi files)</i><br>| | | |--<strong> </strong>MansfieldMT_fwd.dat > <i> uncontaminated (ModEM format *.dat file)</i><br>| | |-- <strong>model </strong>> <i>model in ModEM format (*.mod) and WinGLink format (.out) formats</i><br>| | |-- coordinates.txt ><i> location of MT sites</i><br>| |-- <strong>Rock units </strong>> <i>contains the file with indices of the rock unit model, in 3D, of the modified Mansfield model. The indices are stored as a column vector. </i><br><br>|-- <strong>Dataset_field</strong> > <i>field dataset</i><br>| |-- <strong>Mag </strong>> <i>magnetic data and models: inversion and results</i><br>| | |-- <strong>admm constraints </strong>> <i> file with bound constraints used in cases 3, 4, and adjusted case 4.</i><br>| | |-- <strong>data </strong>> <i> magnetic data for inversion, x, y, z, data column format.</i><br>| | |-- <strong>inverted models </strong>> <i> folders containing inversion results for the different cases tested</i><br>| | | |-- <strong>case 1</strong> <br>| | | |-- <strong>case 2</strong><br>| | | |-- <strong>case 3</strong><br>| | | |-- <strong>case 4</strong><br>| | | |-- <strong>case 4 adjusted</strong><br>| |-- <strong>MT </strong>> <i>MT probabilities and sites information</i><br>| | |-- <strong>probabilities </strong>> <i>MT probabilities of interface and rock units (*.txt files)</i><br>| | |-- coord_L26_sites > <i>File containing the location of sites along ligne L26</i></p>
Training data set for inverse pyrolysis machine learning
<p>For dataset description see https://doi.org/10.5281/zenodo.6606247</p>
Compositional and Thermal State of the Lower Mantle from the inversion of GLAD-M25 model
<p>The 3D chemical composition and temperature structure of the lower mantle from the inversion of GLAD-M25 model is included</p>
Surface wave Green's functions for WASP slip inversion code
<p>Surface wave GFs for use with WASP. File needs to be placed in ./fotran_code/gfs_nm/</p>
Optimal Experimental Design for Large-Scale Inverse Problems via Multi-PDE-constrained Optimization - supplementary files
<p>The file data.xlsx contains information about four experiments defined in: A. Petrocchi, M.K. Scharrer, F. Pichler, S. Volkwein, Optimal Experimental Design for Large-Scale Inverse Problems via Multi-PDE-constrained Optimization, 2024, Submitted. Preprint available at https://arxiv.org/abs/2404.15797.</p> <p>Some information is included in the file data.pdf.</p>
EC-t dataset for: Using Inverse Gaussian Distribution for Analysis of Breakthrough Curves in Tracer Tests for Sandy Samples in Rigid Wall Cell
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Offset-Controlled Localized Velocity Inversion in the $\tau-p$ Domain Using Acoustic Traveltimes: Modeling and Application in Borehole Measurements
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2D Transdimensional Joint Inversion of RMT and ERT Data
<p>These directories contain the dataset (synthetic and field data), processed data obtained using the 2D transdimensional Bayesian inversion and inverted models<br>obtained using WSJointInv2D-MT-DCR code for the publications “2D Transdimensional Joint Inversion of Radio magnetotelluric and Electrical Resistivity Tomography Data”.<br>All scripts to produce the plots are written in MATLAB and the scripts are given in each folder. The name of each plotting script begins with “A1 xxx.m”. For example the script “A1 Stats plot.m” in “./Synthetic Data/plot model” is used to plot various statistical maps such as mean, median, standard deviations, etc.</p>
Data for Inverse Folding/Structural Evolution paper
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The code and dataset for the paper "Hierarchical Clustering for Consistent Inverse Rendering of Indoor Scenes"
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Real-Time Wind Response Prediction and Load Inversion for Skyscraper Using Deep Learning
<p>Dataset and code for a forthcoming article. Any questions, please consult 2110051@tongji.edu.cn</p>
Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies
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Molecular Dynamics Trajectories for GPR6 with Ligand IAG (Inverse Agonist)
<p>Molecular Dynamics Data for 10.1126/scisignal.ado8741 for publication at</p> <p>Barekatain M., Johansson L.C., Lam J.H. et al Structural Insights into the High Basal Activity and Inverse Agonism of the Orphan Receptor GPR6 Implicated in Parkinson's Disease, Sci Signal. 2024 Dec 3;17(865):eado8741. doi: 10.1126/scisignal.ado8741. Epub 2024 Dec 3.</p> <p>This folder contains the PDB format file ("Topology") and the XTC format file (Trajectories). The timestep in this strided trajectory is 0.1 ns per frame. Periodic boundary condition (pbc) can be restored using VMD's standard pbc commands.</p> <p>Please cite us if you find this data useful!</p>
Data from: Waterjet and laser etching: the nonlinear inverse problem
In waterjet and laser milling, material is removed from a solid surface in a succession of layers to create a new shape, in a depth-controlled manner. The inverse problem consists of defining the control parameters, in particular, the two-dimensional beam path, to arrive at a prescribed freeform surface. Waterjet milling (WJM) and pulsed laser ablation (PLA) are studied in this paper, since a generic nonlinear material removal model is appropriate for both of these processes. The inverse problem is usually solved for this kind of process by simply controlling dwell time in proportion to the required depth of milling at a sequence of pixels on the surface. However, this approach is only valid when shallow surfaces are etched, since it does not take into account either the footprint of the beam or its overlapping on successive passes. A discrete adjoint algorithm is proposed in this paper to improve the solution. Nonlinear effects and non-straight passes are included in the optimization, while the calculation of the Jacobian matrix does not require large computation times. Several tests are performed to validate the proposed method and the results show that tracking error is reduced typically by a factor of two in comparison to the pixel-by-pixel approach and the classical raster path strategy with straight passes. The tracking error can be as low as 2–5% and 1–2% for WJM and PLA, respectively, depending on the complexity of the target surface.
Data from: Effects of inversions on within- and between-species recombination and divergence
Chromosomal inversions disrupt recombination in heterozygotes by both reducing crossing over within inverted regions and increasing it elsewhere in the genome. The reduction of recombination in inverted regions facilitates the maintenance of hybridizing species, as outlined by various models of chromosomal speciation. We present a comprehensive comparison of the effects of inversions on recombination rates and on nucleotide divergence. Within an inversion differentiating Drosophila pseudoobscura and D. persimilis, we detected one double-recombinant among 9739 progeny from F1 hybrids screened, consistent with published double crossover frequencies observed within species. Despite similar rates of exchange within and between species, we found no sequence-based evidence of ongoing gene exchange between species within this inversion, but significant exchange was inferred within species. We also observed greater differentiation at regions near inversion breakpoints between species vs. within species. Moreover, we observed strong 'interchromosomal effect' (higher recombination in inversion heterozygotes between species) with up to 9-fold higher recombination rates along collinear segments of chromosome two in hybrids. Further, we observed that regions most susceptible to changes in recombination rates corresponded to regions with lower recombination rates in homokaryotypes. Finally, we showed that interspecies nucleotide divergence is lower in regions with greater increases in recombination rate, potentially resulting from greater interspecies exchange. Overall, we have identified several similarities and differences between inversions segregating within vs. between species in their effects on recombination and divergence. We conclude that these differences are most likely due to lower frequency of heterokaryotypes and to fitness consequences from the accumulation of various incompatibilities between species. Additionally, we have identified possible effects of inversions on interspecies gene exchange that had not been considered previously.
QGW_Inversion
<p><br> This package includes codes for calculating the QG forcing terms and QG inversion of omega.</p>
Figs 17, 18 in Scorpions of the Brandberg Massif, Namibia: Species richness inversely correlated with altitude
Figs 17, 18. Adult males, habitus in life: (17) Hadogenes tityrus (Simon, 1888); (18) Opistophthalmus carinatus (Peters, 1861).
Figs 19, 20 in Scorpions of the Brandberg Massif, Namibia: Species richness inversely correlated with altitude
Figs 19, 20. Opistophthalmus adult males, habitus in life: (19) O. lamorali Prendini, 2000; (20) O. jenseni (Lamoral, 1972).
Inverse design of viral infectivity-enhancing peptide fibrils from continuous protein-vector embeddings
<p>The Tables S3 - S5 are a supplement for the article "Inverse design of viral infectivity-enhancing peptide fibrils from continuous protein-vector embeddings" uploaded as a Preprint in ChemRxiv DOI: 10.26434/chemrxiv-2023-1kqm3</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.
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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.
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