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94 results for “X-ray micro-CT”
ds-uct-001: Cast Iron GGG40: X-Ray micro-CT of a nodular cast iron sample class GGG40.
<p><strong>Summary</strong>:<br> .X-Ray micro-computed tomography (micro-CT) of a nodular cast iron sample class GGG40, including both raw projection data and the final reconstructions, for three different resolutions (voxel sizes of 1 μm, 3 μm and 11 μm).<br> .The 3D image was generated with an X-Ray micro-CT Scanner version Xradia Versa 510 from Zeiss performed by A Pereira at the UFF micro-CT Facility.<br> .For use of these data, please remember to cite the DOI of the Zenodo repository and relevant papers.</p> <p><strong>Details</strong>:<br> .Tomo1 (1024) - Voxel size: 1 μm; Sample-source: 26 mm; Sample-detector: 150 mm; Optical magnification: 4.0X; Filter: HE#6; Beam energy: 160 kV; Power: 10 W; Exposure time: 60.0 sec; Projections: 1600.<br> .Tomo2 (1024) - Voxel size: 3 μm; Sample-source: 28 mm; Sample-detector: 35 mm; Optical magnification: 4.0X; Filter: HE#4; Beam energy: 160 kV; Power: 10 W; Exposure time: 10.0 sec; Projections: 3200.<br> .Tomo3 (1024) - Voxel size: 11 μm; Sample-source: 30 mm; Sample-detector: 158 mm; Optical magnification: 0.4X; Filter: HE#4; Beam energy: 160 kV; Power: 10 W; Exposure time: 3.0 sec; Projections: 3200.</p> <p><strong>Contents</strong>:<br> ._info_ds-uct-001.txt<br> .ds-uct-001_cast_iron_ggg40_01um_8bits.zip<br> .ds-uct-001_cast_iron_ggg40_03um_8bits.zip<br> .ds-uct-001_cast_iron_ggg40_11um_8bits.zip<br> .ds-uct-001_cast_iron_ggg40_01um_1600p.txrm<br> .ds-uct-001_cast_iron_ggg40_01um_1600p_Drift.txrm<br> .ds-uct-001_cast_iron_ggg40_01um_1600p_recon.txm<br> .ds-uct-001_cast_iron_ggg40_03um_3200p.txrm<br> .ds-uct-001_cast_iron_ggg40_03um_3200p_Drift.txrm<br> .ds-uct-001_cast_iron_ggg40_03um_3200p_recon.txm<br> .ds-uct-001_cast_iron_ggg40_11um_3200p.txrm<br> .ds-uct-001_cast_iron_ggg40_11um_3200p_Drift.txrm<br> .ds-uct-001_cast_iron_ggg40_11um_3200p_recon.txm</p>
ds-uct-002: Root Canal Strain: X-Ray micro-CT of four teeth before and after root canal procedure.
<p><strong>Summary</strong>:<br> .X-Ray micro-computed tomography (micro-CT) of four teeth before (TomoB) and after (TomoA) simulation of root canal treatment and retreatment procedures instrumented with strain-gauge, including reconstructions, for two different resolutions (TomoB and TomoA with voxel sizes of 20.0 μm and 10.5 μm, respectively).<br> .The 3D image was generated with an X-Ray micro-CT Scanner version Xradia Versa 510 from Zeiss performed by A Pereira at the UFF micro-CT Facility.<br> .For use of these data, please remember to cite the DOI of the Zenodo repository and relevant papers.</p> <p><strong>Details</strong>:<br> .Tomo1B/Tomo2B/Tomo3B/Tomo4B (1024) - Voxel size: 20.0 μm; Sample-source: 45.0 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#1; Beam energy: 60 kV; Power: 5 W; Exposure time: 2.0 sec; Projections: 1600.<br> .Tomo1A/Tomo2A/Tomo3A/Tomo4A (2048) - Voxel size: 10.5 μm; Sample-source: 48.2 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#2; Beam energy: 60 kV; Power: 5 W; Exposure time: 7.0 sec; Projections: 1600.</p> <p><strong>Contents</strong>:<br> ._info_ds-uct-002.txt<br> .ds-uct-002_root_canal_strain_tomo1b_20um_8bits.zip<br> .ds-uct-002_root_canal_strain_tomo2b_20um_8bits.zip<br> .ds-uct-002_root_canal_strain_tomo3b_20um_8bits.zip<br> .ds-uct-002_root_canal_strain_tomo4b_20um_8bits.zip<br> .ds-uct-002_root_canal_strain_tomo1a_10um_8bits.zip<br> .ds-uct-002_root_canal_strain_tomo2a_10um_8bits.zip<br> .ds-uct-002_root_canal_strain_tomo3a_10um_8bits.zip<br> .ds-uct-002_root_canal_strain_tomo4a_10um_8bits.zip<br> .PB_PARECER_CONSUBSTANCIADO_CEP_2650528.pdf</p>
ds-uct-007: Asphalt Concrete: X-Ray micro-CT of an asphalt concrete sample.
<p><strong>Summary</strong>:<br> .X-Ray micro-computed tomography (micro-CT) of an asphalt concrete sample, including both raw projection data and the final reconstructions, for one single resolution (voxel size of 7 μm).<br> .The 3D image was generated with an X-Ray micro-CT Scanner version Xradia Versa 510 from Zeiss performed by A Pereira at the UFF micro-CT Facility.<br> .Image data segmented with four different segmentation techniques: DL (Deep Learning), ML (Machine Learning), TH (Thresholding) and WS (Watershed).<br> .For use of these data, please remember to cite the DOI of the Zenodo repository and relevant papers.<br> <strong>Details</strong>:<br> .Tomo - Voxel size: 7 μm; Sample-source: 31 mm; Sample-detector: 274.25 mm; Optical magnification: 0.4X; Filter: LE#6; Beam energy: 100 kV; Power: 9 W; Exposure time: 4.0 sec; Projections: 1600.</p> <p><strong>Contents</strong>:<br> ._info_ds-uct-007.txt<br> .ds-uct-007_asphalt_concrete_07um_16bits.zip<br> .ds-uct-007_asphalt_concrete_07um_1600p.txrm<br> .ds-uct-007_asphalt_concrete_07um_1600p_Drift.txrm<br> .ds-uct-007_asphalt_concrete_07um_1600p_recon.txm<br> .ds-uct-007_asphalt_concrete_07um_DL.zip<br> .ds-uct-007_asphalt_concrete_07um_ML.zip<br> .ds-uct-007_asphalt_concrete_07um_TH32.zip<br> .ds-uct-007_asphalt_concrete_07um_WS.zip</p>
Multi-resolution X-Ray micro-CT images of Bentheimer Sandstones
<p>This dataset consists of multi-resolution X-Ray micro-tomography images of two Bentheimer sandstone rock cores. The rock cores were first used experimentally in [1] with further modelling in [2]. This new dataset is used directly in the publication [3] - preprint available at https://arxiv.org/abs/2111.01270. </p> <p>The original dataset from [1] (of the same rock cores) is hosted on the BGS National Geoscience Data Centre, ID #130625 at dx.doi.org/10.5285/5f899de8-4085-4370-a45e-e613f27e8f1d and there is also a subvolume image dataset, for easier download available on the Digital Rocks Portal, project 229, DOI:10.17612/KT0B-SZ28 at digitalrocksportal.org/projects/229. </p> <p>The images provided herein are from two distinct Bentheimer rock cores -- core 1 and core 2. The cores have diameter, 12.35mm, lengths 73.2mm and 64.7mm, core-averaged porosities of 0.203 and 0.223 and permeabilities of 1.636D and 0.681D for core 1 and 2, respectively. Core 2 has a clear low permeability lamination occurring at 2/3 of the total core length, whereas core 1 has a general fining towards the outlet of the core creating a reduction in porosity [1].</p> <p>The images were acquired with a Zeiss Versa 510 X-Ray CT scanner. We acquired images of two sub volumes from each core, at locations 1/3rd (subvolume 1) and 2/3rds (subvolume 2) of the way along the core length, at resolutions of 2, 6 and 18 microns. We refer to the 2 micron images as high-resolution (HR), the 6 micron images as low-resolution (LR) and the 18 micron images as very-low-resolution (VLR). There are also super-resolution (SR) images created at 2 micron resolution from the LR images, using a deep-learning algorithm. There are also cubic interpolation images created from the LR image - these are labels bicubic. These have a resolution of 2 microns, and size equal to the HR and SR images. Details of the SR and LR Bicubic generation are found in [3]. The following scanning protocols were used for the direct imaging:</p> <p>2 micron images:<br> --We use a 4x microscope objective, an exposure time of 8s, 2x averaged binning, 9001 projections, a scan voltage of 80kV and a power of 7W. Each scan takes approximately 24 hours.</p> <p>6 micron images:<br> --We use a flat panel detector, an exposure time of 0.7s, 10x repeat frames, 1x averaged binning, 2401 projections, a scan voltage of 80kV and a power of 7W. The cone angle is 14.46 degrees and the fan angle is 22.2 degrees. Each scan takes approximately 1 hour.</p> <p>18 micron images:<br> --We use a 0.4x microscope objective, an exposure time of 1s, 10x repeat frames, 1x averaged binning, 2401 projections, a scan voltage of 80kV and a power of 7W. The cone angle is 12.65 degrees and the fan angle is 12.65 degrees. Each scan takes approximately 2 hours.</p> <p>We present 4 sets of the images with different levels of processing. All images are mutual registered to each other. Each image filename has a Core#_Subvol#_resolution identifier, either with the actual resolution (e.g. 6) or the short form (e.g. LR). The following name endings are used</p> <p>(1) - '_16bit_LE.raw'. These are the .raw images of little-endian format. Preceding this filename is also the cubic image side length in voxels, e.g. _75cube. 12 images in total.</p> <p>(2) - '_16bit_LE_normalised.raw'. These are the .raw images of little-endian format with normalised greyscale values following the procedure in [1]. Preceding this filename is also the cubic image side length in voxels, e.g. _75cube. 12 images in total.</p> <p>(3) - 'Core1_Subvol1_HR' etc. These are the .tiff images of (2) above, which have been converted to 8 bit. Includes bicubic interpolation images and SR images, but no 16 micron images, since these were not used in the analysis of [3]. 16 images in total. </p> <p>(4) - 'Core1_Subvol1_HR_filtered' etc. These are the .tiff images from (3) above, which have filtered using non-local means filtering. More details are found in [3]. Note there are no SR images here since they are already essentially filtered, and included in (3) above. 12 images in total.</p> <p><br> <strong>References</strong><br> <br> [1] Jackson, S.J., Lin, Q. and Krevor, S. 2020. Representative Elementary Volumes, Hysteresis, and Heterogeneity in Multiphase Flow from the Pore to Continuum Scale. Water Resources Research, 56(6), e2019WR026396</p> <p>[2] Zahasky, C., Jackson, S.J., Lin, Q., and Krevor, S. 2020. Pore network model predictions of Darcy‐scale multiphase flow heterogeneity validated by experiments. Water Resources Research, 56(6), e e2019WR026708.</p> <p>[3] Jackson, S.J, Niu, Y., Manoorkar, S., Mostaghimi, P. and Armstrong, R.T. 2021. Deep learning of multi-resolution X-Ray micro-CT images for multi-scale modelling. Under review, preprint available at https://arxiv.org/abs/2111.01270 </p>
Fig. 19 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 19. Zospeum simplex Inäbnit, Jochum & Neubert, 2021, (SMF 349425) Scanning Electron Microscopy images. A. Protoconch and upper teleoconch showing microstructure of superficial pitting. B. Close up view of pitting microstructure. C. Last whorl with axial ribbing extending beyond peristome lip. D. Close up view of second whorl showing rows of interrupted dashes of radial pitting. E. Growth lines and radial banding on teleoconch. F. Close up view of growth lines and shell microstructure.
Fig. 22 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 22. Sites of localities and collections. A. Site of type locality of Zospeum njunjicae Jochum, Schilthuizen & Ruthensteiner sp. nov., Golubova pećina, Gornja Seoca, Montenegro. Credit: I. Njunjić. B. Collection site within St John's cave, type locality of Z. kolbae Jochum, Inäbnit, Kneubühler & Ruthensteiner sp. nov. and Z. njegusiense Jochum & Ruthensteiner sp. nov., Njeguši, Montenegro (42.4307° N, 18.8115° E) with speleologist, P. Kunisch. Credit: Péter Lenkei. C. Entrance to Golubova pećina (42.2093° N, 19.1306° E), Gornja Seoca, Montenegro. Credit: I. Njunjić.
Fig. 16 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 16. Light microscopic images of full-bodied Zospeum Bourguignat, 1856 from Njeguši, St John's cave. A–B. Zospeum kolbae Jochum, Inäbnit, Kneubühler & Ruthensteiner sp. nov. (NMBE 571122– 571123), individuals assessed by DNA sequencing with sigmoid intestine showing through shells (shells were destroyed post imaging for tissue extraction). A. Holotype (NMBE 571122), shell of aliquot, aperture, and aperture facing left view. B. Paratype (NMBE 571123), shell of aliquot, aperture, and aperture facing left view. C. Undescribed Zospeum sp. 1 (NMBE 577052) showing all perspectives. D–E. Undescribed Zospeum sp. 1 (NMBE 577053/2) showing all perspectives.
Fig. 13 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 13. Light microscopic images of Zospeum constrictum Jochum & Ruthensteiner sp. nov. (NHMW Mol.Coll.Edlauer 16.693) and collection labels.A. Holotype, aperture, and dorsal views. B–D. Paratypes, aperture and dorsal views.
Fig. 18. 3D in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 18. 3D visualizations of Micro-CT data of Zospeum simplex Inäbnit, Jochum & Neubert, 2021, (NMHW-MO-113642 ex RSC 3760) from Dobravljevac jama, Gornji Brišnik, Bosnia and Herzegovina. A–F. Specimen 1 (spm1). A. Aperture view. B. Aperture facing right view. C. Apical view. D. Dorsal view. E. Aperture facing left view. F. Ventral view. G–L. Specimen 2 (spm2). Same perspectives as Specimen 1.
Fig. 12 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 12. Zospeum neuberti Jochum & Ruthensteiner sp. nov. (NHMW Mol.Coll.Edlauer 32006). A–B. Light microscopic images of paratypes showing aperture and dorsal views and collection labels. C. Light microscopic images of holotype showing aperture and dorsal views. D–I. 3D visualizations of Micro-CT data of holotype. D. Aperture view. E. Aperture facing right view showing smooth columella. F. Apical view. G. Dorsal view showing smooth columella. H. Aperture facing left view. I. Ventral view.
Fig. 21 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 21. Bayesian tree of the genus Zospeum Bourguignat, 1856. Node support values of both the Bayesian Inference (left) and the Maximum Likelihood analysis (right) are given. Branches are coloured to denote the informal species groups within the eastern radiation of Zospeum following Inäbnit et al. (2019). Emboldened specimen names indicate samples sequenced for this study.
Fig. 11 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 11. Zospeum njunjicae Jochum, Schilthuizen & Ruthensteiner sp. nov. A–B. Light microscopic images of paratypes (NMBE 572616) showing aperture and dorsal views. C. Light microscopic images of holotype (NMBE 572617) showing aperture and dorsal views. D–I. 3D visualizations of X-ray microCT data of holotype (NMBE 572617). D. Aperture view. E. Aperture facing right view showing well defined lamella. F. Apical view. G. Dorsal view. H. Aperture facing left view. I. Ventral view.
Fig. 9 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 9. Zospeum amplioscutum Jochum & Ruthensteiner sp. nov., (NHMW Mol.Coll.Edlauer 19.069) with sample labels. A. Light microscopic images of paratype (NHMW Mol.Coll.Edlauer 19.069), apertural and dorsal views. B. Light microscopic images of holotype (NHMW Mol.Coll.Edlauer 19.069), aperture and dorsal views. C–H. 3D visualizations of X-ray Micro-CT data of holotype (NHMW Mol. Coll.Edlauer 19.069). C. Aperture view. D. Aperture facing right view. E. Apical view. F. Dorsal view. G. Aperture facing left view. H. Ventral view showing coiling projecting high up on shell and peristome oblique to umbilicus.
Fig. 10 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 10. Zospeum tumidum Jochum, Schilthuizen & Ruthensteiner sp. nov., holotype (NMBE 572615). A. Light microscopic images, showing aperture and dorsal views and TxEx Collection label. B. 3D visualizations of Micro-CT data, apical view. C. Ventral view showing deep umbilical depression. D. Aperture view. E. Aperture facing right view showing tapered columella and lamellar bulge. F. Dorsal view. G. Aperture facing left view.
Fig. 17. Z in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 17. Z. njegusiense Jochum & Ruthensteiner sp. nov., Scanning Electron Microscopy images. A. Holotype (NMBE 572639), aperture view showing subfossil shell with superficial erosion of shell layer. B. Paratype (NMBE 578378), aperture view showing close up of lamellar band on columella (Fig. C). C. Paratype (NMBE 578378), aperture view showing damaged shell and columella. D. Close up view of holotype (NMBE 572639), showing body whorl with low, irregular growth lines. E. Paratype (NMBE 578378), protoconch.
Fig. 6 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 6. Zospeum intermedium Jochum & Ruthensteiner sp. nov. (RMNH.MOL.234132) from Gittenberger (1975). A. Light microscopic images of apertural and dorsal views. B. Sample labels. C–H. 3D visualizations of X-ray Micro-CT data. C. Aperture view. D. Aperture facing right view. E. Apical view. F. Dorsal view. G. Aperture facing right view. H. Umbilical view showing slight umbilical depression and lamella projecting from the columellar side.
Fig. 7 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 7. Light microscopic images of shells from the caves Lipska pećina and Duboki do (Montenegro) with specimen labels. A–C. Zospeum troglobalcanicum Absolon, 1916 (MCSMNH-PMSL-Moll.-FVelkovrh 29603). D–F. Zospeum dubokidoense Jochum & Ruthensteiner sp. nov. D. Holotype (MCSMNHPMSL-Moll.-FVelkovrh 30360[spm1]). E–F. Paratypes, Duboki do, Montenegro (MCSMNH-PMSLMoll.-FVelkovrh 30360[spm2-3]).
Fig. 2. 3D in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 2. 3D visualizations of Micro-CT data of the lectotype of Zospeum troglobalcanicum Absolon, 1916 (NHMW Moll.Coll.Edlauer 32.749) with shell parts and terms indicated. A. Measurements include shell height (sh), shell width (sw), aperture height (ah), aperture width (aw), height of last whorl (hlw) and spire angle (SA). B. Internal view showing columella (co), lamella (la), peristome (pe) and penultimate whorl (pw). C. Apical view showing protoconch (pr), teleoconch (te) and peristome (pe). D. Ventral view showing peristome configuration (pe) parietal shield (ps) and umbilicus (um).
Fig. 4. 3D in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 4. 3D visualizations using Micro-CT data of shells from the caves Benetina pećina (SE Bosnia and Herzegovina) and Cetinska pećina (Montenegro). A–F. Zospeum troglobalcanicum Absolon, 1916, lectotype (NHMW Moll.Coll.Edlauer 32.749). A. Aperture view. B. Aperture facing right view. C. Apical view. D. Dorsal view. E. Aperture facing left view. F. Ventral view showing umbilical depression. G–L. Zospeum tortuosum Jochum & Ruthensteiner sp. nov., holotype (MCSMNH-PMSLMoll.-FVelkovrh 34099[spm1]). G. Aperture view. H. Aperture facing right view. I. Apical view. J. Dorsal view. K. Aperture facing left view. L. Ventral view showing callused peristome positioned mostly on top of umbilicus.
Fig. 15 in 3D X-ray microscopy (Micro-CT) and SEM reveal Zospeum troglobalcanicum Absolon, 1916 and allied species from the Western Balkans (Ellobioidea: Carychiidae)
Fig. 15. Zospeum biokovoense Jochum & Ruthensteiner sp. nov. (NHMW Mol.Coll.Edlauer 16.390). A–B. Light microscopic images showing aperture and dorsal views and collection labels. A. Juvenile shell. B. Holotype. C–H. 3D visualizations of Micro-CT data of holotype. C. Aperture view showing gnarled deformation of the columella. D. Aperture facing right view showing fat columella and lamella. E. Apical view. F. Dorsal view showing lopsided spire and incomplete lamella on top of fat columella. G. Aperture facing left view. H. Ventral view showing puckered umbilical depression.
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