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116 results for “surface scanning”
Dataset accompanying the publication "Towards 3D determination of the surface roughness of core-shell microparticles as a routine quality control procedure by scanning electron microscopy"
<p>This dataset accompanies the following publication:</p> <p>Hülagü, D., Tobias, C., Dao, R., Komarov, P., Rurack, K., Hodoroaba, V.-D., Towards 3D determination of the surface roughness of core-shell microparticles as a routine quality control procedure by scanning electron microscopy. Sci.Rep, <span>14<span>, 17936 (2024), https://doi.org/10.1038/s41598-024-68797-7.</span></span></p> <p>It contains SEM and AFM-in-SEM images of polystyrene (PS) core particles, polystyrene-iron oxide (PS/Fe3O4) core-shell particles, and polystyrene-iron oxide-silica (PS/Fe3O4/SiO2) core-shell-shell particles. Please refer to the publication and its supporting information for more details on the acquisition and contents of the dataset, as well as the GitHub repository at https://github.Com/denizhulagu/roughness-analysis-by-electron-microscopy.</p> <p> </p> <p>The investigated particles were produced at BAM laboratories as previously described in:</p> <p>Hülagü, D. et al. Generalized analysis approach of the profile roughness by electron microscopy with the example of hierarchically grown polystyrene–iron oxide–silica core–shell–shell particles. Adv. Eng. Mater. 24, 2101344, https://doi.org/10.1002/adem.202101344 (2022).</p> <p>Tobias, C., Climent, E., Gawlitza, K. & Rurack, K. Polystyrene microparticles with convergently grown mesoporous silica shells as a promising tool for multiplexed bioanalytical assays. ACS Appl. Mater. Interfaces 13, 207, https://dx.doi.org/10.1021/acsami.0c17940 (2020).</p>
Measuring avian bill size: Comparing and evaluating 3D surface scanning with traditional size estimates in Australian birds
<p>Unidimensional measurements for estimating bill size, like length and width, are commonly used in ecology and evolution, but can be criticised due to issues with repeatability and accuracy. Furthermore, formula-based estimates of bill surface area tend to assume uniform bill shapes across species, which is rarely the case. 3D surface scanning can potentially help overcome some such issues by collecting detailed external morphology and direct measurements of surface area, rather than composite estimates of size. Here, we evaluate the use of 3D surface scanners on avian museum specimens to test the repeatability of 3D-based measurements and compare these to traditional formula-based methods of estimating bill size from unidimensional measurements. Using 28 Australian bird species, we investigate inter-observer repeatability of surface area measurements from 3D surface scans. We then compare 3D-based size estimates to formula-based size estimates to infer the accuracy and precision of formula-based measurements of bill surface area. We find that morphometric measurements from 3D surface scans are highly repeatable between observers, without the need for extensive training, demonstrating an advantage over unidimensional measuring methods, like callipers. When comparing 3D-based measurements to formula-based estimates of bill surface area, most formulae for estimating size consistently underestimate surface area, and with considerable variation between species. Where 3D scanning is not possible, we find that a commonly used cone formula for estimating bill size is most precise across diverse bill shapes, therefore supporting its use in interspecific contexts. However, we find that incorporating an additional unidimensional measure of bill curvature into formulae improves the accuracy of the calculated area. Our results reveal the high potential for 3D surface scanners in avian morphometric research, especially for studies necessitating large sample sizes collected by multiple observers, and gives suggestions for formula-based approaches to estimate bill size.</p>
MicroCT surface scans of mice humeri (climbing experiment)
<p>This data consists of 3D surface scans of 43 mice humeri (right anatomical side), which have been extracted from micro-computed tomography (microCT) files. The original analysis of these bones was conducted in an earlier study (Siegel & Jones [1975] American Journal of Physical Anthropology 42:141-144), focusing on the effects of climbing activity on bone dimensions. In the new study by Karakostis and Wallace (DOI after publication: 10.1002/ajpa.24700), the 3D surface scans were used to compare between habitual climbers (21) and controls (22) by applying the "Validated Entheses-based Reconstruction of Activity" (V.E.R.A.) method on four muscle attachment sites of the humerus (greater tubercle, lesser tubercle, supinator crest, and deltoid tuberosity). Significant entheseal differences were found between activity groups in both univariate and multivariate analyses, showing that our approach can be used to identify skeletal evidence of habitual climbing activities in mice.</p>
Appendix Data for Manuscript : Application of OSL surface exposure dating with the use of two-dimensional OSL laser scanning instruments and energy-dispersive x-ray spectroscopy
<p>Appendix Data for Manuscript 'Application of OSL surface exposure dating with the use of two-dimensional OSL laser scanning instruments and energy-dispersive x-ray spectroscopy'.</p>
Dataset of paper "Evaluation of the uniformity of UVA LED illumination on flat surfaces: Discrete Ordinate Method, Single Axis, and Surface Scanning Radiometry"
<p>Dataset of paper "Evaluation of the uniformity of UVA LED illumination on flat surfaces: Discrete Ordinate Method, Single Axis, and Surface Scanning Radiometry"</p> <ul> <li>Maximum Horizontal Intensity plots from discrete ordinates model simulations</li> <li>Maximum Horizontal Intensity plots from radiometry scans</li> <li>Peak intensity measurements for a UV LED lamp using Radiometry and DOM simulations</li> <li>Power measurements from DOM and radiometry measurements across a flat surface for a UV LED lamp</li> <li>Homogeneity data of irradiance on a flat surface</li> </ul>
MicroCT surface scans of mice humeri (climbing experiment)
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Data from: Using handheld mobile laser scanning to quantify fine-scale surface fuels and detect changes post-disturbance in Northern California forests
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Measuring avian bill size: Comparing and evaluating 3D surface scanning with traditional size estimates in Australian birds
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Automated analysis of scanning electron microscopic images for assessment of hair surface damage
<p>Mechanical damage of hair can serve as an indicator of health status and its assessment relies on the measurement of morphological features via microscopic analysis, yet few studies have categorized the extent of damage sustained, and instead, have depended on qualitative profiling based on the presence or absence of specific features. We describe the development and application of a novel quantitative measure for scoring hair surface damage in scanning electron microscopic (SEM) images without predefined features, and automation of image analysis for characterization of morphological hair damage after exposure to an explosive blast. Application of an automated normalization procedure for SEM images revealed features indicative of contact with materials in an explosive device and characteristic of heat damage, though many were similar to features from physical and chemical weathering. Assessment of hair damage with tailing factor, a measure of asymmetry in pixel brightness histograms and proxy for surface roughness, yielded 81% classification accuracy to an existing damage classification system, indicating good agreement between the two metrics. Further ability of tailing factor to score features of hair damage reflecting explosion conditions demonstrates the broad applicability of the metric to assess damage to hairs containing a diverse set of morphological features. </p>
Dataset for 'Comparison of coherence scanning interferometry, focus variation and confocal microscopy for surface topography measurement'
<p>The original measurement data shown in Figures 1 to 3 of the Euspen conference publication: Comparison of coherence scanning interferometry, focus variation and confocal microscopy for surface topography measurement, https://www.euspen.eu/knowledge-base/ICE23170.pdf. </p><p><strong>Acknowledgements </strong></p><p>The authors would like to thank the UKRI Research England Development (RED) Fund for funding this work via the Midlands Centre for Data-Drive Metrology. This work was supported by the European Metrology Programme for Innovation and Research (EMPIR) project (TracOptic, 20IND07) and the European Union (ERC, AI-SURF, 101054454).</p>
Supplementary Data for Manuscript 'Observing impacts on luminescence depth profile evolutions from surface altered quartzite using OSL laser scanning and controlled light exposed rock sampling techniques'
<p>This file contains the supplementary data for the manuscript 'Observing impacts on luminescence depth profile evolutions from surface altered quartzite using OSL laser scanning and controlled light exposed rock sampling techniques'</p>
◂Fig. 10 Scanning electron microscopy images of Ramisyllis kingghidorahi n. sp., posterior-most regions and epithelium details. A–D Posterior ends. Arrow in C and D points to heavily ciliated anus. E– G Minute crests on the dorsal surface of midbody segments. Arrows point to crests laterally located on the dorsal surface. H Dorsal surface of posterior segments. I Clumps of cilia on dorsal surface of proventricular segments. Arrows pointing to pores in H. Scale bars: 100 µm A, B, I, 50 um C, G, 5 µm D, E,4 µm F, and 3 µm H in Ramisyllis kingghidorahi n. sp., a new branching annelid from Japan
◂Fig. 10 Scanning electron microscopy images of Ramisyllis kingghidorahi n. sp., posterior-most regions and epithelium details. A–D Posterior ends. Arrow in C and D points to heavily ciliated anus. E– G Minute crests on the dorsal surface of midbody segments. Arrows point to crests laterally located on the dorsal surface. H Dorsal surface of posterior segments. I Clumps of cilia on dorsal surface of proventricular segments. Arrows pointing to pores in H. Scale bars: 100 µm A, B, I, 50 um C, G, 5 µm D, E,4 µm F, and 3 µm H
Comparability of skeletal fibulae surfaces generated by different source scanning (dual-energy CT scan vs. high resolution laser scanning) and 3D geometric morphometric validation
<p><strong>SI_Appendix 1.</strong> Matrix of Cartesian coordinates of analyzed specimens.</p> <p><strong>SI_Appendix 2</strong>. Sample list and acquisition methods. </p>
3D scanning data of the tooth surface of Japanese macaque (NMNS PV 6166-7) and the silicone impression molds of it
<p>3D scanning data of the tooth surface of Japanese macaque (NMNS PV 6166-7) and the silicone impression molds of it are saved in ".vk3", ".mnt", and ".sur" format, which are analyzed in:</p> <p>Sawaura, R., Kimura, Y., and Kubo, M. O. "Accuracy of Dental Microwear Impressions by Physical Properties of Silicone Materials" submitted to Frontiers in Ecology and Evolution.</p> <p>For details, please see the information in the paper.</p>
FIGURE. Scanning electron micrographs of the disc ovaries/cypselae in Callilepis taxa with imbricate involucral bracts.A. Disc cypsela of C. caerulea showing glabrous surface and twin hairy ciliate margins and B. higher magnification showing the twin hairs along the margin in C. caerulea (Hemm 404, PRE). C. Disc ovary of C. corymbosa showing glabrous surface and twin hairy ciliate margins and D. higher magnification showing the twin hairs along the margin in C. corymbosa (Koekemoer 2596, PRE). in A taxonomic revision of the genus Callilepis (Asteraceae) in South Africa
FIGURE. Scanning electron micrographs of the disc ovaries/cypselae in Callilepis taxa with imbricate involucral bracts.A. Disc cypsela of C. caerulea showing glabrous surface and twin hairy ciliate margins and B. higher magnification showing the twin hairs along the margin in C. caerulea (Hemm 404, PRE). C. Disc ovary of C. corymbosa showing glabrous surface and twin hairy ciliate margins and D. higher magnification showing the twin hairs along the margin in C. corymbosa (Koekemoer 2596, PRE).
FIGURE. Disc ovary in a taxon of Callilepis with imbricate involucral bracts. A. Digital image of the disc ovary of C. normae (Koekemoer 4573, PRE) showing the entire surface twin hairy. B. Scanning electron micrograph of the surface of the disc ovary of C. normae (Koekemoer 4573, PRE) showing the twin hairs on the surface. in A taxonomic revision of the genus Callilepis (Asteraceae) in South Africa
FIGURE. Disc ovary in a taxon of Callilepis with imbricate involucral bracts. A. Digital image of the disc ovary of C. normae (Koekemoer 4573, PRE) showing the entire surface twin hairy. B. Scanning electron micrograph of the surface of the disc ovary of C. normae (Koekemoer 4573, PRE) showing the twin hairs on the surface.
Supplementary Data for Manuscript : "Application of OSL surface exposure dating with the use of two-dimensional OSL laser scanning instruments and energy-dispersive x-ray spectroscopy'
<p>Contains all supplementary works mentioned in the manuscript.</p>
Masks Against Surface-Scanning for Radiation Therapy Immobilisation in Head and Neck Cancer (MASSC)
ClinicalTrials.gov study NCT05011500. IPD Sharing: NO. Countries: 1. Publications: 10.
Quantification of Chest Wall Changes After Nuss Bar Removal Utilizing Three-dimensional Optical Surface Scans
ClinicalTrials.gov study NCT04052321. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Automated analysis of scanning electron microscopic images for assessment of hair surface damage
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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.
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.