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882 results for “3D models”
3D models: BU-072, EAP-flake & WEM-60
<p>These 3D models were produced with an AICON smartSCAN-HE R8 from the manufacturer Hexagon (software version OptoCat 2018R1), featuring a blue light LED and two black and white cameras with 8 megapixels each. The S-150 FOV used has a point-to-point distance of 33 µm. After scanning, the 3D models (STL files) were edited in the free software GOM Inspect 2018 (2018 Hotfix 2, Rev. 111729). The scanning took place at TraCEr, Laboratory for Traceology and Controlled Experiments at MONREPOS Archaeological Research Centre and Museum for Human Behavioural Evolution, RGZM, Neuwied, Germany.</p> <p>The 3D models have been used in 3D-EdgeAngle: A semi-automated 3D digital method to systematically quantify stone tool edge angle and design. For more information see ZENODO LINK XXXX & Protocol link XXXX</p> <p><strong>BU-072:</strong></p> <p>3D model of an archaeological tool (co-called <em>Keilmesser</em>) from the Upper site of Buhlen, Germany. The artefact dates to the Late Middle Palaeolithic. The archaeological finds from Buhlen are normally stored and displayed at the Hessisches Landesmuseum in Kassel, Germany (https://museum-kassel.de/de/museen-schloesser-parks/hessisches-landesmuseum). For more information about the artefact see:</p> <p>Schunk L. Understanding Middle Palaeolithic asymmetric stone tool design and use: functional analysis and controlled experiments to assess Neanderthal technology Verlag des Römisch- Germanischen Zentralmuseums Mainz. <a href="https://doi.org/10.11588/propylaeum.1076">https://doi.org/10.11588/propylaeum.1076</a></p> <p><strong>EAP-flake:</strong></p> <p>This object is an experimental elongated laminar flake. The raw material is Baltic flint. One edge of the flake is retouched in the distal part. The retouch is applied on the dorsal face and is performed marginally, i.e., little invasive.</p> <p><strong>WEM-60:</strong></p> <p>The third item is a 3D model of a calibrated standard angle (gauge block) made of certified steel. The gauge block has a certified nominal value of 60 degrees and is coated with oil to avoid corosion. Note that for WEM-60 some extra target marks on the sample were needed to make the aligning between the singal scans possible. Thus, adhesive paper tags with symbols were placed on the calibrated standard angle. Despite ungreasing the metal surface of the sample, the adhesive paper tags showed a tendency to peel off after a period of time.</p>
3D models of Berenike cemetery
<p>Zestaw modeli 3D grobowców ze stanowiska Berenike.</p> <p>Wykonane z pomocą Agisoft Metashape.</p> <p>Rezultaty eksportowane do formatu .obj</p>
Differences in boundary behavior in the 3D vertex and Voronoi models
<p>An important open question in the modeling of biological tissues is how to identify the right scale for coarse-graining, or equivalently, the right number of degrees of freedom. For confluent biological tissues, both vertex and Voronoi models, which differ only in their representation of the degrees of freedom, have effectively been used to predict behavior, including fluid-solid transitions and cell tissue compartmentalization, which are important for biological function. However, recent work in 2D has hinted that there may be differences between the two models in systems with heterotypic interfaces between two tissue types, and there is a burgeoning interest in 3D tissue models. Therefore, we compare the geometric structure and dynamic sorting behavior in mixtures of two cell types in both 3D vertex and Voronoi models. We find that while the cell shape indices exhibit similar trends in both models, the registration between cell centers and cell orientation at the boundary are significantly different between the two models. We demonstrate that these macroscopic differences are caused by changes to the cusp-like restoring forces introduced by the different representations of the degrees of freedom at the boundary and that the Voronoi model is more strongly constrained by forces that are an artifact of the way the degrees of freedom are represented. This suggests that vertex models may be more appropriate for 3D simulations of tissues with heterotypic contacts.</p>
Input and output data from simulations of 2D valves and 3D inflow-outflow model using particle methods
<p>Input and output data of open-source softwares for computational fluid dynamics simulation involving fluid-structure interaction.</p> <p> </p> <p><strong>Data from two studies</strong></p> <ol> <li>Verifications of the weakly-compressible smoothed particle hydrodynamics (WCSPH) method, open-source code <a href="https://www.sphinxsys.org">SPHinXsys</a>, when applied to the flow of idealized 2D valve models.</li> <li>Validations of inflow-outflow model in moving particle semi-implicit (MPS) method, open-source code <a href="https://github.com/rubensamarojr/polymps/tree/inOutflow">PolyMPS</a>.</li> </ol> <p> </p> <p><strong>Folders and Files</strong></p> <p><strong>valve-2D.zip </strong>is the folder with data from the idealized models of vertical and curved 2D valves:</p> <ul> <li>Vertical valves with parameters provided in <a href="https://doi.org/10.1016/j.jcp.2010.08.005">Gil et al., 2010</a></li> <li>Curved valves with parameters provided in <a href="http://doi.org/10.1007/s00466-013-0890-3">Wick, 2014</a></li> <li>source files (.cpp): input data (physical and numerical parameters) for SPHinXsys</li> <li>text files: SPHinXsys (.dat) and Reference (.tsv) results</li> <li>python files (.py): Generates the graphics</li> </ul> <p> </p> <p><strong>inflow-outflow-3D.zip </strong>is the folder with data from the inflow-outflow model in MPS:</p> <ul> <li>Fluid physical properties of water <ul> <li><span>\(\rho=1000kg/m^3 , \,\, \nu=10^{-6}m/s^{-2}\)</span></li> </ul> </li> <li>Pipes of length <span>\(L=0.15m\)</span>: <ul> <li>circular section of diameter <span>\(D=0.1m\)</span>.</li> <li>square section of sides <span>\(S=0.1m\)</span>.</li> </ul> </li> <li>Constante pressure variation (<span>\(\Delta P = 30 \,\, or \,\, 50 \,\, Pa\)</span>) between inflow and outflow: <ul> <li><span>\(\frac{\partial p}{\partial x} = - \frac{\Delta P}{L}, \\ \Delta P = P_{outflow} - P_{inflow}\)</span></li> </ul> </li> </ul> <ul> <li>Sinusoidal pressure variation (<span>\(\Delta P =700Pa \,\, , \,\, T = 2.0s\)</span>) between inflow and outflow <ul> <li><span>\(\frac{\partial p}{\partial x} = - \frac{\Delta P}{L} \sin \omega t \, \\ \omega = \frac{2\pi}{T} \\ Delta P = P_{outflow} - P_{inflow}\)</span></li> </ul> </li> <li>input data (.json, .grid, .stl): physical properties, numerical parameters and geometries for PolyMPS can be found at <a href="https://github.com/rubensamarojr/polymps/tree/inOutflow/input">https://github.com/rubensamarojr/polymps/tree/inOutflow/input</a></li> <li>text files (.txt): PolyMPS and OpenFOAM results</li> <li>python files (.py): Generates the graphics</li> </ul> <p> </p> <p><strong>References</strong></p> <p><a href="https://doi.org/10.1016/j.jcp.2010.08.005">A. J. Gil. The Immersed Structural Potential Method for haemodynamic applications. J. Comput. Phys., 229 (2010), pp. 8613-8641</a></p> <p><a href="https://doi.org/10.1007/s00466-013-0890-3">T. Wick. Flapping and contact FSI computations with the fluid–solid interface-tracking/interface-capturing technique and mesh adaptivity. Comput Mech 53, 29–43 (2014)</a></p> <p><a href="https://doi.org/10.1016/j.cma.2014.10.040">D. Kamensky, et al. An immersogeometric variational framework for fluid–structure interaction: Application to bioprosthetic heart valves Comput. Methods Appl. Mech. Engrg., 284 (2015), pp. 1005-1053</a></p> <p><a href="https://doi.org/10.1016/j.cma.2015.12.023">C. Kadapa et al. A fictitious domain/distributed Lagrange multiplier based fluid–structure interaction scheme with hierarchical B-Spline grids. Comput. Methods Appl. Mech. Engrg., 301 (2016), pp. 1-27</a></p> <p><a href="https://doi.org/10.1016/j.jcp.2015.10.015">Jie Liu. A second-order changing-connectivity ALE scheme and its application to FSI with large convection of fluids and near contact of structures. J. Comput. Phys., 304 (2016), pp. 308-423</a></p>
3D CAD models exemples to run "ArtificialReef_Complexity" Python script (STL files)
<p>Here you will find 3D CAD models in STL format.</p> <p>These are 3D CAD models of fractal pyramid.</p> <p>These STL files can be used as an example to run the Python script "ArtificialReef_Complexity: v.1.3" available on GitHub (<a href="https://github.com/ELI-RIERA/ArtificialReef_Complexity/tree/V1.3">https://github.com/ELI-RIERA/ArtificialReef_Complexity/tree/V1.3</a>)</p>
low Cerro Gordo; StL 2, Cerro Gordo sandstone; StL 3, between Cerro Gordo and Chunchullo; StL 4, Chunchullo sandstone; StL 5, bed set between Chunchullo and Tatacoa; StL 6, Tatacoa sandstone; StL 7, bed set below Cerbatana conglomerate; StL 8, Cerbatana conglomerate; StL 9, Monkey beds; StL 10, bed set above Monkey beds; StL 12, bed set above Fish bed; StL 14, bed set below La Venta red beds; StL 15, La Venta red beds; StL 16, bed set between La Venta red beds and El Cardón red beds; StL 17, El Cardón red beds; StL 18, San Francisco sandstone; StL 19, Polonia red beds; D, reconstruction of the head of Neodolodus colombianus based on the 3D model of the almost complete skull of the specimen VPPLT 1696. Abbreviations: Fm, Formation; St m, Stratigraphic meter. Reconstruction of N. colombianus made by Tatsuya Shimura. in New remains of Neotropical bunodont litopterns and the systematics of Megadolodinae (Mammalia: Litopterna)
low Cerro Gordo; StL 2, Cerro Gordo sandstone; StL 3, between Cerro Gordo and Chunchullo; StL 4, Chunchullo sandstone; StL 5, bed set between Chunchullo and Tatacoa; StL 6, Tatacoa sandstone; StL 7, bed set below Cerbatana conglomerate; StL 8, Cerbatana conglomerate; StL 9, Monkey beds; StL 10, bed set above Monkey beds; StL 12, bed set above Fish bed; StL 14, bed set below La Venta red beds; StL 15, La Venta red beds; StL 16, bed set between La Venta red beds and El Cardón red beds; StL 17, El Cardón red beds; StL 18, San Francisco sandstone; StL 19, Polonia red beds; D, reconstruction of the head of Neodolodus colombianus based on the 3D model of the almost complete skull of the specimen VPPLT 1696. Abbreviations: Fm, Formation; St m, Stratigraphic meter. Reconstruction of N. colombianus made by Tatsuya Shimura.
Predicting the distribution of serotonergic axons: A supercomputing simulation of reflected fractional Brownian motion in a 3D-mouse brain model
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Differences in boundary behavior in the 3D vertex and Voronoi models
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2D and 3D coral models imaged in Curaçao: George, Mullinix, et al PeerJ 2021
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Ecological signal in the size and shape of marine amniote teeth – 3D models and landmarks
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A 3D resistivity model of the Acoculco high temperature geothermal system, Mexico
<p>The dataset is the final three-dimensional resistivity model of the high temperature geothermal field Acoculco, in Mexico.</p> <p>The model is described in deliverable 5.2 of the GEMex Project, funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 727550, and by the Mexican Energy Sustainability Fund<br> CONACYT-SENER, Project 2015-04-268074.</p>
3DAnatomicalRatModel: A printable version of a 3D anatomical rat model
<p>This is the version 1.0 of our static, 3D printable, anatomical rat model. The designed purpos is to provide a anatomical shaped phantom for medical imaging. The organs are constructed as hollow bodys, which can be filled with contrast agend suiteable for the technology of interest, e.g. iodine for CT, gadolinium for MRI or iron nanoparticles for MPI. Thus, it can be used as reference data or for experiment planing.</p> <p>In addition, it can be used for teaching purposes, for people making first steps in preclinical research.</p> <p>For best results, it is recommended to use the .form files to print the model in the optimized orientation on a Form2 or Form3 printer. On other printers the .stl files should be used.</p> <p>A publication using this phantom can be found here: <a href="https://doi.org/10.1515/cdbme-2019-0048">https://doi.org/10.1515/cdbme-2019-0048</a></p>
3D Cortical Bone and Trabecular Bone Structure [synthetic data, simple, capsule shell model]
<p>Trabecular bone patterns are mimicked by generating and arranging "capsule shells" in a three-dimensional voxel by following probability distribution. Ground truth (gt) contains 4 labels (Background: 0, Cortical Bone: 11, Trabecular Bone: 21, Cavity: 31).</p>
Sogenannter Hexenturm von Schloss Ulmerfeld, NÖ – 3D-Modell des Innenraums
<p>2015's 3d model of the interior of the so-called witch tower at the south easteren corner of the outer fortifications of Ulmerfeld Castle. The model was made using 3d photogrammetry (image based modeling) and mast aerial photography.</p>
Forearm pro-supination motion videos, 3D models, and simulation scenes
<p>This dataset contains 3D models for a patient-specific forearm bones (radius and ulna) with its interosseous membrane (IOM) ligament it composed of several heterogeneous parts, comprising the central band (CB), accessory band (AB), distal oblique accessory cord (DOAC), distal oblique bundle (DOB), and proximal oblique cord (POC).</p> <p>- simulation_scenes_iom_multi_different_res.zip</p> <p>contains the models with the simulation scenes written in SOFA framework. The IOM is modeled as 7 components. Different resolutions have been experimented.</p> <p>- simulation_scenes_iom_single_cbp.zip</p> <p>contains the models with the simulation scenes written in SOFA framework. The IOM is modeled as a single wide band ligament. Different resolutions have been experimented.</p> <p>- prosup_simulation_videos.zip</p> <p>A folder containing videos of the simulations.</p> <p>- Prosup_Tech_report</p> <p>A technical report describing the approach of the numerical simulations</p>
The Resilience of Habitable Climates Around Circumbinary Stars: 3D climate model data Part 2
<p>Climate modeling outputs used in the paper, "The Resilience of Habitable Climates Around Circumbinary Stars", to be published JGR-Planets Special Edition on Exoplanets. Files contain 4 Earth years of hourly time cadence outputs of basic climate fields. Hourly time-cadence is needed in order to grasp the temporal variations of circumbinaries. </p>
3D Modelling of Craniofacial Ontogeny and Sexual Dimorphism in Children
<p>Template and data used in the project "3D Modelling of Craniofacial Ontogeny and Sexual Dimorphism in Children"</p>
Iona Church Exterior 3D Model
A 3D model of the exterior of the Iona Church located in Port Chalmers, Dunedin. Source: Objaverse 1.0 / Sketchfab
3D MODEL OF AN ANCIENT POLOVTSIAN STATUE
3D SCANNED AND RETOPOLOGIZED MODEL OF AN ANCIENT POLOVTSIAN STATUE.The archive has all the necessary maps ( NM; DM;AO;CV;TM) Source: Objaverse 1.0 / Sketchfab
The uyghur Doppa 3d model
simple uyghur doppa 3d model file include 2048 pixel diffuse texture and normal map, The Doppa (Uzbek: دوپپا, Uyghur: دوپپا, Doppa) is a square or round skullcap originating in Central Asia, worn by Uzbeks, Uyghurs, Kazan Tatars and Tajiks. The doppa means "hat" in Uzbek, whereas in Uyghur it specifically refers to Doppa, not other types of hats. The hat is derived from a Turkic, more pointed, ancestral cap, which can be seen in some of the portraits of Jalaleddin Mingburnu. Differences between Uzbek and Uyghur Doppas can be observed from their shape, method of making, and colour. Uzbek Doppas are round, whereas Uyghur doppas are square with pointy edges. Uzbek Doppas are relatively softer, while Uyghur doppas are slightly harder and set into shape with mold. Source: Objaverse 1.0 / Sketchfab
ScienceDex guides
Understand access before you commit
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.