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2,214 results for “Strength”
Flexural and compressive strength of the landfast sea ice in the Prydz Bay, East Antarctic
<p>This dataset includes the results of flexural and compression tests of sea ice samples conducted in the cold laboratory. The ice samples were prepared using a landfast sea ice extracted through the whole ice thickness in the Prydz Bay, East Antarctic.</p> <p>The files contain the following data fields:</p> <p><strong>Readme</strong> – a detailed description of all data</p> <p><strong>Compression test</strong> – specific details of sea ice compression test including sample information, physical properties, and mechanical results</p> <p><strong>Flexural test</strong> – specific details of sea ice flexural test including sample information, physical properties, and mechanical results</p>
Dataset for Overriding lithospheric strength affects continental collisional mode selection and subduction transference: Implications for Greater
<p>This .zip file is the relative dataset for the models of <strong>Overriding lithospheric strength affects continental collisional mode selection and subduction transference: Implications for Greater India-Asia convergent system.</strong></p>
Quartz rheology constrained from constant-load experiments indicate lower strength of the continental crust
<p>Raw mechanical data.</p> <p>Raw EBSD data of the sample OR90.</p>
Increasing morphological disparity and decreasing optimality for jaw speed and strength during the radiation of jawed vertebrates
<p>The Siluro-Devonian adaptive radiation of jawed vertebrates, which underpins almost all living vertebrate biodiversity, is characterised by the evolutionary innovation of the lower jaw. Multiple lines of evidence have suggested that the jaw evolved from a rostral gill arch, but when the jaw took on a feeding function remains unclear. We quantified the variety of form in the earliest jaws in the fossil record and , from which we generated a range of theoretical morphospacelogies within this morphological range, which that we then tested for their functional optimality. By drawing comparisons with the real jaw data and reconstructed ancestral forms, our results show that the earliest jaw shapes were optimised for fast closure and stress resistance, inferring a feeding rather than solely ventilation function. Jaw shapes then became less optimal for these functions during the later radiation of jawed vertebrates. Thus, the evolution of jaw morphology has continually explored new morphospace and accumulated disparity through time, laying the foundation for diverse feeding strategies and the success of jawed vertebrates.</p>
NICAM AMIP-type simulation data for the article "Deceleration of Madden–Julian Oscillation Speed in NICAM AMIP-type Simulation Associated with Biases in the Walker Circulation Strength"
<p>This data set includes data from 30-year integration on nonhydrostatic icosahedral atmospheric model (NICAM) following an atmospheric model intercomparison project (AMIP) protocol with a slab ocean model from 1 June 1978 to 6 January 2009 (c.f. Kodama et al. 2015), and their GrADs description ctl files. All outputs are daily averages on 2.5 x 2.5 degrees resolution. Output variables are outgoing longwave radiation (W m<sup>-2</sup>), skin temperature (K), sea surface temperature (K), and zonal wind (m s<sup>-1</sup>) on pressure levels.</p>
Even short-term revegetation complicates soil food webs and strengths their links with ecosystem functions
<p>Degradation of dryland ecosystems is a worldwide problem caused by climate change and human activities. To restore these degraded ecosystems, governments have implemented projects that often include revegetation, but we still lack an understanding of how soil food webs and ecosystem functions are affected by revegetation. By conducting a large-scale revegetation experiment under two degradation intensities (low and high) on the Inner Mongolian degraded grassland, we tested the effects of revegetation on primary producers (plants), key components of soil food webs (bacteria, fungi, and nematodes), and ecosystem functions (soil C and N mineralization). After 4 years, revegetation greatly increased the biomass of plants and soil bacteria and fungi but had less effects on soil nematode functional groups. Revegetation increased vegetation and bacterial diversities and soil C and N mineralization rates, altered the structures of vegetation and soil microbial communities, but did not affect fungal or nematode diversity. The stronger effects of revegetation on plants, soil bacteria, soil fungi, and soil nematodes in plots with low degradation intensity than in plots with high degradation intensity indicated that future revegetation efforts should consider the degree of degradation. Revegetation also increased the interactions among plants, soil food webs, and ecosystem functions, indicating that the revegetation-induced changes in soil food webs could facilitate the recovery of soil nutrients and vegetation productivity in degraded grasslands. Synthesis and applications. Overall, the effects of revegetation were stronger on plants (primary producers) and soil microorganisms (intermediate trophic levels) than on soil nematodes (higher trophic levels), and even short-term revegetation increased the complexity of soil food webs and strengthened their relationships with soil functions in degraded grasslands. These results highlight the effects of restoration on multiple trophic levels in degraded drylands, and suggest that some aspects of plant-soil interactions in global drylands could be rapidly improved by appropriate restoration.</p>
Interrelationship among thigh intermuscular adipose tissue, cross-sectional area, muscle strength and functional mobility in older subjects
<p><strong>Objectives:</strong> The aim of this cross-sectional study was to investigate the association between lower limb strength, muscle mass and composition and balance ability in elders. <strong>Methods:</strong> Thirthy-four older participants (Age: 65.6±4.73 years; male=10 and female=24) were assessed for muscle strength (maximal isometric strength of knee extensors and one repetition maximum by leg press, 1RM), balance and gait capacity (Mini-BESTest), body composition by DXA (obtaining Appendicular Skeletal Muscle Mass Index, ASMMI) and magnetic resonance imaging of thigh to evaluate Intermuscular Adipose Tissue (IMAT) and muscle Cross Sectional Area (CSA). <strong>Results:</strong> Positive correlations between 1RM leg press and ASMMI (r<sub>s</sub>=0.64, P<.0001) and thigh CSA (r<sub>s</sub>=0.52, P=.0017), but not with thigh IMAT, were found. In addition, significant correlations between knee extensors strength and ASMMI (r<sub>s</sub>=0.48, P=.004) and thigh CSA (r<sub>s</sub>=0.49, P=.0033) and IMAT (r<sub>s</sub>=-0.35, P=.043) were observed whereas no significant correlations between the Mini-BESTest with ASMMI, thigh CSA and IMAT were observed. <strong>Discussion:</strong> Lower limb strength positively correlated with appendicular muscle mass. Further, the maximal isometric strength of knee extensors negatively correlated with thigh IMAT in elderly patients whereas the dynamic balance ability did not correlate with any of the morphological variables of the muscle (i.e. ASMMI, CSA and IMAT). A reduced muscle size and strength could affect movement and reduce physical function in older patients. Improving the composition and size of muscle in elder subjects could reduce frailty and risk of falls.</p>
dataset used in article entitiled "Heterogeneous shear strength around mainshock fault of the 2000 Western Tottori earthquake (M 7.3) through dense seismic observations"
<p>See README.doc for description about the files.</p>
Data for "Insight into Ideal Shear Strength of Ni-based Dilute Alloys using First-Principles Calculations and Correlational Analysis"
<p><strong>Summary: </strong></p> <p>This dataset contains inputs, outputs, and analysis needed to replicate the results discussed in a published article. First-principles results were obtained through VASP and an external optimizer while the crystal plasticity finite element calculations were carried out by Abaqus and an existing subroutine. See the manuscript for more details.</p> <p><strong>Folders: </strong></p> <ul> <li>NiX_data-summary ("analysis" archive): a summary of the output of the DFT calculations, including plaintext and numpy binary versions of the elastic constants and ideal shear stresses.</li> <li>NiX_analysis ("analysis" archive): the data analysis scripts needed to reproduce correlation results (a separate calculation in Matlab) and plot figures.</li> <li>NiX_data-detailed ("data" archive): input files for three pre-strain conditions (0.00, 0.15, and 0.30) and all alloying elements, with common files being separated to a top-level folder of their own to limit repetition.</li> </ul> <p><strong>Article: </strong></p> <p>Published: <a href="https://doi.org/10.1016/j.commatsci.2022.111564">10.1016/j.commatsci.2022.111564</a></p> <p>@article{shimanek2022NiX, title = {Insight into ideal shear strength of Ni-based dilute alloys using first-principles calculations and correlational analysis}, journal = {Computational Materials Science}, volume = {212}, pages = {111564}, year = {2022}, issn = {0927-0256}, doi = {https://doi.org/10.1016/j.commatsci.2022.111564}, author = {John D. Shimanek and Shun-Li Shang and Allison M. Beese and Zi-Kui Liu}}</p> <p>Preprint: <a href="https://doi.org/10.48550/arXiv.2108.06412">10.48550/arXiv.2108.06412</a></p>
Supplementary Information and Data for The Effect of Compositional Heterogeneity on the Martensite Start Temperature of a High Strength Steel During Rapid Austenitisation and Cooling
<p>The supplementary information and supporting data for "The Effect of Compositional Heterogeneity on the Martensite Start Temperature of a High Strength Steel During Rapid Austenitisation and Cooling" in the proceedings of the 42nd Risø International Symposium on Materials Science. The images used in the paper are also included. The files for the montaged EBSD datasets are not included but can be made available upon request. Contact the corresponding author: mark.taylor-5@manchester.ac.uk</p>
Sleep characteristics, MRI- and DXA-based morphological parameters, muscle strength and risk of falls in sedentary older subjects: a cross sectional study
<p>The aims of this study were: 1) to assess actigraphy-based and subjective sleep parameters in a sample of healthy older subjects and compare them to normative values for this specific population; 2) to assess the differences in muscle morphological parameters (muscle mass and composition) and physical performance (strength and balance) between short- vs normal-sleepers and poor- vs good-sleepers; 3) to assess the possible correlations between sleep variables and muscle morphological and physical function parameters in elderly subjects.</p>
Data set for: Effects of microstructure evolution on compressive strength of silica sand-enhanced oil well cement at a wide temperature range
<p><span>The influence of microstructure of silica-enhanced cement on the mechanical performance of cement is difficult to be described. In this study, we used the scanning electron microscope and image processing method to investigate the relationship between the complicity of cement microstructure and compressive strength under various temperature and curing time conditions. Fractal dimension was applied to describe the complicity of cement. The relationships among compressive strength, fractal dimension, temperature, curing time and pore structure of cement were identified. The results show that curing time of cement directly control the complicity of cement microstructure and compressive strength by altering the pore orientation and macropore ratio in cement. The curing temperature affects the complicity of cement microstructure and compressive strength indirectly by changing the ratio of micropore and small pore. The fractal dimension of silica-enhanced cement shows good correlation with compressive strength. Pore size distribution is the most important factor that influence the complicity of cement matrix and compressive strength of silica-enhanced cement. When building up the macroscopic mechanical performance model of cement, we should consider the influence of pore size distribution in cement under different curing temperatures and times on the complicity of cement microstructure. </span></p>
The intra- and inter-rater reliability of a variety of testing methods to measure shoulder range of motion, hand-behind-back and external rotation strength in healthy participants
<p>Dataset for a intra- and inter-rater reliability study of a variety of testing methods to measure shoulder range of motion, hand-behind-back and external rotation strength in healthy participants</p>
Physical simulation of the influence of the original rock strength on the compaction characteristics of caving rock in longwall goaf
The compaction characteristics of broken rock in caving zone have a significant impact on the movement law of overburden and the prediction of surface subsidence. The mechanical properties of broken rock are clearly affected by the original rock strength of the roof. In this paper, the compaction mechanical behaviour of broken loose rock masses with different original rock strengths is studied by model testing. The results show that (1) the greater the original rock strength of broken rock is, the shorter the initial compaction stage, the earlier the transition compaction stage and stable compaction stage, and the lower the degree of compaction. (2) The initial deformation modulus and ultimate axial strain have a linear relationship with the original rock strength of broken rock. (3) Under different axial pressures, the deformation modulus increases with increasing original rock strength of the broken rock. The tangent modulus and axial stress change approximately linearly, the secant modulus and stress change linearly, and the tangent modulus and secant modulus have an exponential/hyperbolic relationship with strain.
Strength, depth, and geometry of magnetic sources in the crust of the Moon from localized power spectrum analysis
<p>This archive contains data files that can be used to reproduce Figures 7-10 in the article</p> <blockquote> <p>Wieczorek, M. A. (2018) Strength, depth, and geometry of magnetic sources in the crust of the Moon from localized power spectrum analysis, J. Geophys. Res. Planets.</p> </blockquote> <p>The data files contain the final inversion results for the model using magnetized sills, where the full magnetic field to spherical-harmonic degree 449 was employed. For each localized analysis, the best 6 orthogonal localization windows were used that maximized their power within a spherical cap with an angular radius of 8 degrees and with a spherical-harmonic bandwidth of 58. The analyses were performed at the vertices of a quasi equal-area grid with a spacing corresponding to five degrees of latitude. For these models, the file names start with "sills_449_8_58_5". Each file contains the latitude and longitude (in degrees) of the localization analysis, as well as one other value.</p> <p><br> FILE DESCRIPTIONS</p> <p>sills_449_8_58_5_minchi2r.dat</p> <p>This file contains the minimum reduced chi<sup>2</sup> value of the best-fitting model for each analysis. Uncertainties on the inversion parameters were obtained from Monte Carlo simulations that showed 68.2% and 95.4% of the analyses should have reduced chi<sup>2</sup> values less than 2.133 and 4.082, respectively. Where 1-sigma uncertainties could not be calculated (when the best-fitting misfits were above the 1-sigma limits) the limit was set to +/- 999.e99.</p> <p>sills_449_8_58_5_db.dat<br> sills_449_8_58_5_db_1m.dat<br> sills_449_8_58_5_db_1p.dat</p> <p>The best-fitting depths to the bottom of the magnetized region and their +/- 1-sigma limits (1p/1m).</p> <p>sills_449_8_58_5_dt.dat<br> sills_449_8_58_5_dt_1m.dat<br> sills_449_8_58_5_dt_1p.dat</p> <p>The best-fitting depths to the top of the magnetized region and their +/- 1-sigma limits.</p> <p>sills_449_8_58_5_rdisk.dat<br> sills_449_8_58_5_rdisk_1m.dat<br> sills_449_8_58_5_rdisk_1p.dat</p> <p>The best-fitting angular radii (in km) of the magnetized sills and their +/- 1-sigma limits.</p> <p>sills_449_8_58_5_rkm2v2.dat<br> sills_449_8_58_5_rkm2v2_1m.dat<br> sills_449_8_58_5_rkm2v2_1p.dat</p> <p>The best-fitting (N M^2 V^2)^(1/2) values in A m^2 of the magnetized sills and their +/- 1-sigma limits.<br> </p>
Lap shear strength of composite bonded joints with different treatments (MOST-Spoke 11-Task 2.3)
Open the record for dataset details and reuse information.
Detailed dataset and code generation for Artificial intelligence-based modelling of compressive strength of slurry infiltrated fiber concrete
Open the record for dataset details and reuse information.
Influence of unspecific visual-perceptual-cognitive task constrains on jump ability and reactive strength in soccer players
<p>Open Data: Influence of unspecific visual-perceptual-cognitive task constrains on jump ability and reactive strength in soccer players</p>
The influence of Cu/Na concentration ratio, pH and ionic strength on the spectral induced polarization signature of saturated silica sand
<p>The file contains the complete spectra of real conductivity, quadrature conductivity and phase for each of the 25 samples. The data are first divided by set and then combined.</p>
Training of aerobic fitness (VO2max) and muscle strength – a cost/benefit analysis
<p>A systematic literature search in the Ovid Medline, Web of Science and SportDiscus databases was performed, limited to randomized studies of aerobic fitness and strength training, respectively. Studies with at least three "doses" of frequency, duration or intensity of training were examined in order to find out what effect could be expected from the next highest “dose”.</p>
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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.