Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
13
datasets available to search
ShareScore release 0.9.0
Dataset results
13 results for “elastic mechanism”
Mechanical Response of Foams: Elasticity, Plasticity, and Rearrangements (Supplemental Material)
<p>Supplemental material to <a href="https://openaccess.leidenuniv.nl/handle/1887/40902"><em>Mechanical Response of Foams: Elasticity, Plasticity, and Rearrangements</em>; hdl:1887/40902</a>. The supplemental material consists of 9 videos:</p> <p><strong>S1, S2</strong><br /> Two examples of foam under shear, φ = 0.85 (S1) and φ = 1.25 (S2). The foam is sheared from s<sub>CD</sub> = − 0.2 to s<sub>CD</sub> = + 0.2 at γ̇=3 × 10<sup>−5</sup> /s. Time and a scale bar are indicated in the top right; the video is sped up 250× .<br /> <br /> <strong>S3,S4</strong><br /> Difference imaging for direct (top) and affine-corrected (bottom) images, for the same systems as in S1 and S2. Both the real space (left) and difference images (right) are shown. The direct difference images are dominated by the affine deformation, while the affine-corrected difference images highlight the nonaffine motion in the system.</p> <p><strong>S5,S6</strong><br /> Tracked particle trajectories for the same systems as in S1 and S2. Particle trajectories are indicated using white curves. Left: direct tracking data, right: affine-corrected tracking data.</p> <p><strong>S7</strong><br /> Compression of a foam from φ = 0.77to φ = 1.41 under ε̇ = − 3 × 10<sup>−5</sup> /s. (left) Real space image; (right) from top to bottom: flame graph and log<sub>10</sub> A and β from the power law fit Eq. (4.21). Time is indicated on the top left, φ is indicated at the bottom left. With increasing confinement, we observe a transition from fully smooth to fully intermittent behavior.</p> <p><br /> <strong>S8,S9</strong><br /> Two examples of foam under shear, φ = 0.9 (S8) and φ = 1.5 (S9). The foam is sheared from s<sub>CD</sub> = −0.2 to s<sub>CD</sub> = +0.2 at γ̇=3 × 10<sup>−5</sup> /s. At low density, A ≈ 10<sup>−6</sup> and β ≈ 1.6 are fairly constant, while we can clearly distinguish the quiet and active periods for the high density foam.</p>
Developing elastic mechanisms: Ultrafast motion and cavitation emerge at the millimeter scale in juvenile snapping shrimp
<p>Organisms such as jumping froghopper insects and punching mantis shrimp use spring-based propulsion to achieve fast motion. Studies of elastic mechanisms primarily focus on fully developed and functional mechanisms in adult organisms. However, the ontogeny and development of these mechanisms can provide important insights into lower size limits of spring-based propulsion, the ecological or behavioral relevance of ultrafast movement, and the scaling of ultrafast movement. Here we examine the development of the spring-latch mechanism in the big claw snapping shrimp, <em>Alpheus</em> <em>heterochaelis</em> (Alpheidae). Adult snapping shrimp use an enlarged claw to produce high-speed strikes that generate cavitation bubbles. However, until now, it was unclear when the elastic mechanism emerges during development and whether juvenile snapping shrimp can generate cavitation at this size. We reared <em>A</em>. <em>heterochaelis</em> from eggs, through their larval and postlarval stages. Starting one month after hatching, the snapping shrimp snapping claw gradually developed a spring-actuated mechanism and began snapping. We used high-speed videography (300,000 frames s<sup>-1</sup>) to measure juvenile snaps. We discovered that juvenile snapping shrimp generate the highest recorded accelerations (5.8x10<sup>5</sup> ± 3.3x10<sup>5</sup> m s<sup>-2</sup>) for repeated use and underwater motion and are capable of producing cavitation at the millimeter scale. The angular velocity of snaps did not change as juveniles grew; however, juvenile snapping shrimp with larger claws produced faster linear speeds and generated larger, longer-lasting cavitation bubbles. These findings establish the development of the elastic mechanism and cavitation in snapping shrimp and provide insights into early life-history transitions in spring-actuated mechanisms.</p>
Developing elastic mechanisms: Ultrafast motion and cavitation emerge at the millimeter scale in juvenile snapping shrimp
Open the record for dataset details and reuse information.
Optimal mechanical interactions direct multicellular network formation on elastic substrates
<p>Cells self-organize into functional, ordered structures during tissue morphogenesis, a process that is evocative of colloidal self-assembly into engineered soft materials. Understanding how intercellular mechanical interactions may drive the formation of ordered and functional multicellular structures is important in developmental biology and tissue engineering. Here, by combining an agent-based model for contractile cells on elastic substrates with endothelial cell culture experiments, we show that substrate deformation–mediated mechanical interactions between cells can cluster and align them into branched networks. Motivated by the structure and function of vasculogenic networks, we predict how measures of network connectivity like percolation probability and fractal dimension as well as local morphological features including junctions, branches, and rings depend on cell contractility and density and on substrate elastic properties including stiffness and compressibility. We predict and confirm with experiments that cell network formation is substrate stiffness dependent, being optimal at intermediate stiffness. We also show the agreement between experimental data and predicted cell cluster types by mapping a combined phase diagram in cell density substrate stiffness. Overall, we show that long-range, mechanical interactions provide an optimal and general strategy for multicellular self-organization, leading to more robust and efficient realizations of space-spanning networks than through just local intercellular interactions.</p>
Supplemental material to 'A variational rigid-block modelling approach to nonlinear elastic and kinematic analysis of failure mechanisms in historic masonry structures subjected to lateral actions'
<p>This repository contains the data necessary to reproduce the content of the article:</p> <blockquote> <p>A variational rigid-block modelling approach to nonlinear elastic and kinematic analysis of failure mechanisms in historic masonry structures subjected to lateral actions (2021). Earthquake Engineering & Structural Dynamics, 1–23. <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/eqe.3512">https://doi.org/10.1002/eqe.3512</a></p> </blockquote> <p>The file <strong>01_Dataset.zip</strong> contains the dataset. The companion document <strong>00_Dataset_description.pdf </strong>describes the content of the dataset, guiding the analyst to its use in order to (i) reproduce the article's results and (ii) compare the article's results to new results brought by the analyst, e.g. by comparison with other numerical models.</p> <p>Version history</p> <p>v2: updated references in 00_dataset description.pdf </p>
Scaling and development of elastic mechanisms: the tiny strikes of larval mantis shrimp
Open the record for dataset details and reuse information.
Optimal mechanical interactions direct multicellular network formation on elastic substrates
Open the record for dataset details and reuse information.
Data for the article "Elastic strain engineering for ultralow mechanical dissipation"
<p>Device fabrication masks, raw experimental data and data processing scripts</p>
Effects of Chest Wall Elastance on Pulmonary Mechanics of Acute Respiratory Failure (ARF)
ClinicalTrials.gov study NCT02196870. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry
Fast directional growth is a necessity for the young seedling; after germination, it needs to quickly penetrate the soil to begin its autotrophic life. In most dicot plants, this rapid escape is due to the anisotropic elongation of the hypocotyl, the columnar organ between the root and the shoot meristems. Anisotropic growth is common in plant organs and is canonically attributed to cell wall anisotropy produced by oriented cellulose fibers. Recently, a mechanism based on asymmetric pectin-based cell wall elasticity has been proposed. Here we present a harmonizing model for anisotropic growth control in the dark-grown Arabidopsis thaliana hypocotyl: basic anisotropic information is provided by cellulose orientation) and additive anisotropic information is provided by pectin-based elastic asymmetry in the epidermis. We quantitatively show that hypocotyl elongation is anisotropic starting at germination. We present experimental evidence for pectin biochemical differences and wall mechanics providing important growth regulation in the hypocotyl. Lastly, our in silico modelling experiments indicate an additive collaboration between pectin biochemistry and cellulose orientation in promoting anisotropic growth.
Data from: Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry
Open the record for dataset details and reuse information.
Data for Stress fields around magma chambers influenced by elastic thermo-mechanical deformation: implications for forecasting chamber failure
<p>COMSOL model outputs as .txt files. as supplement to the paper: Stress fields around magma chambers influenced by elastic thermo-mechanical deformation: implications for forecasting chamber failure which has been submitted for publication in Scientific Reports. </p> <p> </p> <p> </p>
ELASTANCE: Prospective Physiological Study of Lung Elastance in Recruitment and Derecruitment in Early Onset Mechanically Ventilated ARDS Patients
ClinicalTrials.gov study NCT01899560. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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.