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2,235 results for “engineering”
Data from: Leaf-cutter ants engineer large nitrous oxide hot spots in tropical forests
Though tropical forest ecosystems are among the largest natural sources of the potent greenhouse gas nitrous oxide (N2O), the spatial distribution of emissions across landscapes is often poorly resolved. Leaf-cutter ants (LCA, Atta and Acromyrmex, Myrmicinae) are dominant herbivores throughout Central and South America and influence multiple aspects of forest structure and function. In particular, their foraging creates spatial heterogeneity by concentrating large quantities of organic matter (including nitrogen, N) from the surrounding canopy into their colonies, and ultimately, into colony refuse dumps. Here, we demonstrate that refuse piles created by LCA species Atta colombica in tropical rainforests of Costa Rica provide ideal conditions for extremely high rates of N2O production (high microbial biomass, potential denitrification enzyme activity, N content, and anoxia), and may represent an unappreciated source of heterogeneity in tropical forest N2O emissions. Average instantaneous refuse pile N2O fluxes surpassed background emissions by more than three orders of magnitude (in some cases exceeding 80,000 μg N2O-N m-2 h-1) and generating fluxes comparable to or greater than those produced by engineered systems such as wastewater treatment tanks. Refuse-concentrating Atta species are ubiquitous in tropical forests, pastures and production ecosystems, and increase density strongly in response to disturbance. As such, LCA colonies may represent an unrecognised greenhouse gas point source throughout the Neotropics.
Xantho Engine Final
Model of the horizontal trunk engine recovered from the wreck of SS Xantho (1848-1872). The model was constructed primarily in CAD (Rhino3D) and Blender. Additional elements were generated using structured light (Artec EVA) and laser scanning (NextEngine 2020). Source: Objaverse 1.0 / Sketchfab
LOW "Archimedes" perämoottori - Outboard engine
Tämä harvinainen perämoottori on mahdollisesti ruotsalaisen Archimedes-yhtiön valmistama noin 1910-luvulla. Se edustaa varhaista kaksisylinteristä bokseri- eli vastaiskumoottorimallia, jossa sylinterit ovat vastakkain. Molempien sylinterien erillinen, mekaaninen ilmajäähdytys hihnavetoisella potkurilla ei ole tiettävästi käytössä missään muussa perämoottorimallissa. Around the 1910's, this rare outboard motor was possibly manufactured by the Swedish company Archimedes. It represents an early two-cylinder boxer or reciprocating engine model in which the cylinders face each other. Separate, mechanical air cooling of both cylinders with a belt-driven propeller is not known to be used in any other outboard model. The object and 3D model: Forum Marinum (member of Traffic Museums Association). The photogrammetric 3D model may include touch-ups and modelled additions. https://museot.finna.fi/Record/musketti_tmk.M20:FME299:299 Source: Objaverse 1.0 / Sketchfab
Merlin Engine
This Rolls Royce Merlin engine from a crashed World War 2 Hurricane aircraft and is now located in the Battle of Britain Bunker Visitor Centre, Uxbridge. The plane was piloted by Peter Beverley Robinson and was shot down in June 1940 near Dieppe, France. The pilot survived and went on to fight in the Battle of Britain. 218 photos taken in August 2021 with a Sony a7R III and processed in Reality Capture. Source: Objaverse 1.0 / Sketchfab
City Of Washington Engine Shaft Mount
The* City of Washington* is located about six miles offshore near Key Largo, FL. Indiana University has conducted research on this 1917 shipwreck since the early 1990's, resulting in the successful addition of the *City of Washington* to the Florida Keys National Marine Sanctuary Shipwreck Trail. This 3D model, of one of the site's more prominent features, was prepared by IU Center for Underwater Science research associate Kirsten Hawley during the 2016 field season in order to demonstrate photogrammetric documentation of submerged cultural resources. Launched in 1877 from Chester, Pennsylvania, the hybrid ship, which used a double mast sailing design along with a triple expansion steam engine, now lies on the ocean floor. The* City of Washington* was present and provided aid following the 1898 explosion of the *U.S.S. Maine* in Havana Harbor, which sparked the beginning of the Spanish-American War. Source: Objaverse 1.0 / Sketchfab
Engin Altan Duzyatan as Ertugrul
Engin Altan as Ertugrul from Trukish Drama Series Dirilis Ertugrul. The total file is of 291 MB, and as a free member I cannot upload more than 50 MB. So some textures may be missing and I apologize for that. Thanks. If you love this character, let me know, I will upload riggged character on CGTrader for sale. Sword Model: [Downloaded From Here](https://sketchfab.com/3d-models/pirate-sword-280e72a198384f868e43df624d9b6d51) Armour Model: [Downloaded From Here](https://sketchfab.com/3d-models/leather-armor-0693e6cbc82b47f7a8c08a7bb87ae72b) Source: Objaverse 1.0 / Sketchfab
Engine Dedication Plate
Engine Dedication Plate, is apart of the Indianapolis Fire Fighters Museum collection. This item was 3D scanned using a Creaform Go Scan 50. For more information about this object, feel free to visit: https://www.visitindy.com/indianapolis-firefighters-museum-historical-society For more information about the 3D Digitization Program at IUPUI visit: https://www.ulib.iupui.edu/digitalscholarship/3ddig Source: Objaverse 1.0 / Sketchfab
Steam Engine Room_Carolina
Steam Engine Room model of rice husks factory, Casa Cadaval, Muge, Portugal Source: Objaverse 1.0 / Sketchfab
Experimental Data for: Research Perspective on Supporting Software Engineering via Physical 3D Models
<p>Experimental data for the experiment presented in the technical report 1507: "Research Perspective on Supporting Software Engineering via Physical 3D Models"</p>
The Effects of Education on Students’ Perception of Modeling in Software Engineering
<p>The attached file accompanies the paper titled "The Effects of Education on Students’ Perception of Modeling in Software Engineering". This file contains both the raw data and summary data from the survey conducted at the three institutions, NAU, BGU, and Concordia.</p>
HPC-GAP: Engineering a 21st-Century High-Performance Computer Algebra System
<p>Data for the experiments conducted in the paper</p>
Model-Based Space Engineering Ontology
<p>This resource contains an ontology built for supporting the design of space systems in the scope of model-based systems engineering (MBSE). In MBSE, a conceptual model is shared across engineering disciplines involved in a project in order to enable exchange of engineering data and ensure the consistency of the overall design. This ontology specifies the means to specify a system's architecture, requirements, product structure design, operational design, functional design, reliability design, and functional verification. This resource was created in the course of research in the field of MBSE at Airbus DS which is further described in a paper currently under review for ISWC 2016. The paper will be provided after acceptance, as well as paper explaining the resource in further detail.</p>
Model-Based Space Engineering Ontology 1.1
<p>This resource contains an ontology built for supporting the design of space systems in the scope of model-based systems engineering (MBSE). In MBSE, a conceptual model is shared across engineering disciplines involved in a project in order to enable exchange of engineering data and ensure the consistency of the overall design. This ontology specifies the means to specify a system's architecture, requirements, product structure design, operational design, functional design, reliability design, and functional verification. This resource was created in the course of research in the field of MBSE at Airbus DS which is further described in a paper currently under review for ISWC 2016. The paper will be provided after acceptance, as well as paper explaining the resource in further detail.</p>
POPC lipid membrane, 303K, Charmm36 force field, simulation files and 200 ns trajectory for openMM simulation engine v7
<p>POPC lipid membrane, 303K, Charmm36 force field, simulation files and 200 ns trajectory for for openMM simulation engine v7</p> <p>The starting structure was obtained from CHARMM-GUI Membrane Builder v1.7 (http://www.charmm-gui.org/) online tool. [1]</p> <p>All runs were performed with openMM simulation engine v7 and CHARMM36 additive force field parameters obtained from CHARMM-GUI input files [1]. Conditions: T=303, 128 POPC molecules, 5120 tip3p waters, 200ns trajectory (preceded with equilibration).</p> <p>Note that the provided trajectories are in Gromacs XTC format, whereas NAMD DCD format was generated by openMM. This required trajectory conversion using Gromacs package (v5.1.2) with binary topology file from https://doi.org/10.5281/zenodo.153944 </p> <p>These data were originally obtained for the nmrlipids.blospot.fi project.</p> <p>Find more details at nmrlipids.blospot.fi and https://github.com/NMRLipids/nmrlipids.blogspot.fi</p> <p>[1] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field, J. Lee et al.<strong>,</strong> JCTC,<strong> </strong>DOI: 10.1021/acs.jctc.5b00935</p>
POPC lipid membrane, 303K, Charmm36 force field, simulation files and 200 ns trajectory for Gromacs MD simulation engine v5.1.2
<p>POPC lipid membrane, 303K, Charmm36 force field, simulation files and 200 ns trajectory for Gromacs MD simulation engine v5.1.2</p> <p>The starting structure was obtained from CHARMM-GUI Membrane Builder v1.7 (http://www.charmm-gui.org/) online tool. [1]</p> <p>All runs were performed with Gromacs 5.1.2 software package and CHARMM36 additive force field parameters obtained from CHARMM-GUI input files [1]. Conditions: T=303, 128 POPC molecules, 5120 tip3p waters, 200ns trajectory (preceded with equilibration)</p> <p>These data were originally obtained for the nmrlipids.blospot.fi project.</p> <p>Find more details at nmrlipids.blospot.fi and https://github.com/NMRLipids/nmrlipids.blogspot.fi</p> <p>[1] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field, J. Lee et al.<strong>,</strong> JCTC,<strong> </strong>DOI: 10.1021/acs.jctc.5b00935</p>
POPC/Cholesterol (50:50) lipid membrane, 303K, Charmm36 force field from charmm-gui, simulation files and 200 ns trajectory for Gromacs MD simulation engine v5.1.2
<p>The starting structure was obtained from CHARMM-GUI Membrane Builder v1.7 (http://www.charmm-gui.org/) online tool. [1]</p> <p>All runs were performed with Gromacs 5.1.2 software package and CHARMM36 additive force field parameters obtained from CHARMM-GUI input files [1]. Conditions: T=303, 80 POPC and 80 Cholesterol molecules, 7200 tip3p waters, 200ns trajectory (preceded with equilibration)</p> <p>These data were originally obtained for the nmrlipids.blospot.fi project.</p> <p>Find more details at nmrlipids.blospot.fi and https://github.com/NMRLipids/nmrlipids.blogspot.fi</p> <p>[1] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field, J. Lee et al.<strong>,</strong> JCTC,<strong> </strong>DOI: 10.1021/acs.jctc.5b00935</p>
POPC/Cholesterol (70:30) lipid membrane, 303K, Charmm36 force field, simulation files and 200 ns trajectory for Gromacs MD simulation engine v5.1.2
<p>The starting structure was obtained from CHARMM-GUI Membrane Builder v1.7 (http://www.charmm-gui.org/) online tool. [1]</p> <p>All runs were performed with Gromacs 5.1.2 software package and CHARMM36 additive force field parameters obtained from CHARMM-GUI input files [1]. Conditions: T=303, 128 POPC molecules, 5120 tip3p waters, 200ns trajectory (preceded with equilibration)</p> <p>These data were originally obtained for the nmrlipids.blospot.fi project.</p> <p>Find more details at nmrlipids.blospot.fi and https://github.com/NMRLipids/nmrlipids.blogspot.fi</p> <p>[1] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field, J. Lee et al.<strong>,</strong> JCTC,<strong> </strong>DOI: 10.1021/acs.jctc.5b00935</p>
POPC/Cholesterol (70:30) lipid membrane, 303K, Charmm36 force field, simulation files and 100 ns trajectory for openMM simulation engine v7
<p>The starting structure was obtained from CHARMM-GUI Membrane Builder v1.7 (http://www.charmm-gui.org/) online tool. [1]</p> <p>All runs were performed with openMM simulation engine v7 and CHARMM36 additive force field parameters obtained from CHARMM-GUI input files [1]. Conditions: T=303, 84 POPC and 36 Cholesterol molecules, 4800 tip3p waters, 100ns trajectory (preceded with equilibration).</p> <p>These data were originally obtained for the nmrlipids.blospot.fi project.</p> <p>Find more details at nmrlipids.blospot.fi and https://github.com/NMRLipids/nmrlipids.blogspot.fi</p> <p>[1] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field, J. Lee et al.<strong>,</strong> JCTC,<strong> </strong>DOI: 10.1021/acs.jctc.5b00935</p>
POPC/Cholesterol (50:50) lipid membrane, 303K, Charmm36 force field from charmm-gui, simulation files and 100 ns trajectory for openMM simulation engine v7
<p>The starting structure was obtained from CHARMM-GUI Membrane Builder v1.7 (http://www.charmm-gui.org/) online tool. [1]</p> <p>All runs were performed with openMM simulation engine v7 and CHARMM36 additive force field parameters obtained from CHARMM-GUI input files [1]. Conditions: T=303, 80 POPC and 80 Cholesterol molecules, 7200 tip3p waters, 100ns trajectory (preceded with equilibration)</p> <p>These data were originally obtained for the nmrlipids.blospot.fi project.</p> <p>Find more details at nmrlipids.blospot.fi and https://github.com/NMRLipids/nmrlipids.blogspot.fi</p> <p>[1] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field, J. Lee et al.<strong>,</strong> JCTC,<strong> </strong>DOI: 10.1021/acs.jctc.5b00935</p>
POPC/Cholesterol (70:30) lipid membrane, 303K, Charmm36 force field through the use of Gromacs input files, simulation files and 100 ns trajectory for openMM simulation engine v7
<p>The starting structure was obtained from CHARMM-GUI Membrane Builder v1.7 (http://www.charmm-gui.org/) online tool. [1]</p> <p>All runs were performed with openMM simulation engine v7 and CHARMM36 additive force field parameters obtained from CHARMM-GUI input files [1]. Specifically, Gromacs file format provided by [1] was specifically used for this simulation.</p> <p>Conditions: T=303, 84 POPC and 36 Cholesterol molecules, 4800 tip3p waters, 100ns trajectory (preceded with equilibration).</p> <p>These data were originally obtained for the nmrlipids.blospot.fi project.</p> <p>Find more details at nmrlipids.blospot.fi and https://github.com/NMRLipids/nmrlipids.blogspot.fi</p> <p>[1] CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field, J. Lee et al.<strong>,</strong> JCTC,<strong> </strong>DOI: 10.1021/acs.jctc.5b00935</p>
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.