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174 results for “X-ray microtomography”
Spatially-localized X-ray scattering and X-ray microtomography measurements on Moso bamboo
<p><strong>Spatially-localized X-ray scattering and X-ray microtomography measurements on Moso bamboo</strong></p> <p> </p> <p>This data set is originally used in:</p> <p>Ahvenainen, P., Dixon, P. G., Kallonen, A., Suhonen, H., Gibson, L. J., & Svedström, K. (2017). Spatially-localized bench-top X-ray scattering reveals tissue-specific microfibril orientation in Moso bamboo. <em>Plant Methods</em>. <strong>13</strong>:5 DOI: 10.1186/s13007-016-0155-1</p> <p>This data set includes measurements on Moso bamboo (<em>Phyllostachys edulis</em>) performed with two separate set-ups at the Department of Physics, University of Helsinki as described in the above open-access publication. The X-ray microtomography (XMT) measurements, X-ray diffraction tomography (XDT) and localized X-ray scattering (LXS) are done with set-up 1. In LXS, the region-of-interest is selected from a tomographic reconstruction slice based on the XMT measurement using a small X-ray beam (diameter: 200 µm). Additional wide-angle X-ray scattering (WAXS) measurements are conducted with set-up 2 using a larger X-ray beam (diameter approx. 1 mm). </p> <p>The two-dimensional scattering patterns (Pilatus 1M hybrid pixel array detector) and tomographic reconstruction slices obtained with set-up 2 are stored as TIFF-images (.tif). The two-dimensional scattering patterns (MAR345 image plate detector) obtained with set-up 2 are stored as 32-bit RAW files (unsigned integers, 2300 columns, 2300 rows). </p> <p>The novel combined WAXS/XMT set up (set-up 1) is first presented in: Suuronen, J.-P., Kallonen, A., Hänninen, V., Blomberg, M., Hämäläinen, K., & Serimaa, R. (2014). Bench-top X-ray microtomography complemented with spatially localized X-ray scattering experiments. <em>Journal of Applied Crystallography</em>, <strong>47</strong>(1), 471–475. doi:10.1107/S1600576713031105</p> <p>Any queries related to the data set or the related Plant Methods article may be directed to the first author by email:</p> <p>Patrik Ahvenainen, PhD; patrik.ahvenainen@alumni.helsinki.fi</p>
Armoricaphyton chateaupannense - Propagation Phase Contrast X-Ray Synchrotron Microtomography Dataset
<p>Includes:</p> <p>1) Propagation phase contrast X-ray synchrotron microtomography (PPC-SRμCT) dataset to study the three-dimensional structure of the permineralized wood from <em>Armoricaphyton chateaupannense</em>, using the ID19 beamline of the European Synchrotron Radiation Facility (ESRF), Grenoble, France.</p> <p><strong>Dataset Information (also see scan_log.xml):</strong></p> <ul> <li>Number of image in dataset: 2159 images</li> <li>Images prefix: plante_</li> <li>Image x/y size: 3763 x 2048 px</li> <li>Image type: 16-bit TIFFs (with Pack Bits compression)</li> <li>Image size on disk: 14.8 MB each</li> <li>Scan date: 31-Oct-2008</li> <li>Scan energy: 30keV </li> <li>Voxels size: 0.551 um</li> <li>Filters: Al_1_mm Al_0.5_mm Diam_U</li> <li>Projection number: 4000</li> <li>Projection rotation: 360 degs</li> <li>Magnification: x20</li> <li>Source-sample distance: 145000</li> <li>Scan type: continuous</li> </ul> <p>Note: these images have been cropped from their original scan output size.</p> <p>2) Two supplemental videos of the 3D model.</p>
Figure 2. A in X-ray microtomography of the late Carboniferous whip scorpions (Arachnida, Thelyphonida) Geralinura britannica and Proschizomus petrunkevitchi
Figure 2. A, reconstruction of the holotype of Proschizomus petrunkevitchi (NHMUK PI In 7912) in dorsal aspect. B, photograph of the P. petrunkevitchi holotype, part. C, photograph of the P. petrunkevitchi holotype, counterpart. D, left pedipalp of P. petrunkevitchi. E, P. petrunkevitchi in frontal view. Translucent elements are inferred through symmetry or comparison with extant taxa. Abbreviations: 1–4, legs 1–4; Ap, apophysis; Fe, femur; Pa, patella; Pp, pedipalps; Ta, tarsus; Ti, tibia; Tr, trochanter. Scale bars: A–C = 5 mm; D = 1 mm; E = 2 mm.
Figure 1. A in X-ray microtomography of the late Carboniferous whip scorpions (Arachnida, Thelyphonida) Geralinura britannica and Proschizomus petrunkevitchi
Figure 1. A, reconstruction of a paratype of Geralinura brittanica (NHMUK PI In 31265) in dorsal view. B, expanded view of the dorsal anterior of G. brittanica with the median eyes outlined. C, photograph of G. brittanica paratype, part. D, photograph of G. brittanica paratype, counterpart. E, right chelicera of G. brittanica. F, left pedipalp of G. brittanica. G, G. brittanica in frontal view. Abbreviations: 1–4, legs 1–4; Ap, apophysis; Fe, femur; Fl, flange; LK, lateral keel; ME, median eyes; Pa, patella; Pp, pedipalps; Ta, tarsus; Ti, tibia; Tr, trochanter. Scale bars: A–D = 5 mm; E, F = 1 mm; G = 2 mm.
Figure 3 in X-ray microtomography of the late Carboniferous whip scorpions (Arachnida, Thelyphonida) Geralinura britannica and Proschizomus petrunkevitchi
Figure 3. Results of the cladistic analysis presented herein under equal weights parsimony and Bayesian inference. Top: topology within the pantetrapulmonates, in particular between the Haptopoda, Amblypygi, Thelyphopnida and Schizomida, in both parsimony and Bayesian analyses. Bottom: the relationships recovered for all arachnid and chelicerate orders using the topology from the Bayesian analysis (the arachnid-wide parsimony topology is included in the Supplemental material). Support values are bootstrap/ jackknife (parsimony) or posterior probabilities (Bayesian); plotted against geological time using equal branch lengths between fossil taxa (see Methods). Taxon images either drawn for this publication, or from Lozano-Fernandez et al. (2019).
Fig. 3. X in The first record of Cupedidae (Coleoptera: Archostemata) from Eocene Rovno amber: Cupes groehni Kirejtshuk, 2005 examined using X-ray microtomography
Fig. 3. X-ray micro-CT renderings of Cupes groehni Kirejtshuk, 2005, Rovno amber, JDC 8373 [JDC]: A – pronotum and head, dorsal view; B – details of forebody, ventral view. Not to scale.
Fig. 2. X in The first record of Cupedidae (Coleoptera: Archostemata) from Eocene Rovno amber: Cupes groehni Kirejtshuk, 2005 examined using X-ray microtomography
Fig. 2. X-ray micro-CT renderings of Cupes groehni Kirejtshuk, 2005, Rovno amber, JDC 8373 [JDC], habitus: A – dorsal view; B – ventral view; C – left lateral view; D – right lateral view. Scale bar represents 1.0 mm.
Figure 3 in Description of the male of fossil Calomicrus eocenicus Bukejs et Bezděk (Coleoptera: Chrysomelidae: Galerucinae) from Eocene Baltic amber using X-ray microtomography
Figure 3. Calomicrus eocenicus Bukejs et Bezděk, RSKM_P3300.139, X-ray micro-CT renderings: (a) elytra, dorsal view, with clipping planes exposing details beneath pronotum and right elytron; (b) pterothorax without legs, ventral view; (c) habitus without legs, caudal view. Scale bars = 0.5 mm. Abbreviations: f – fovea; p – pygidium; v1–v5 – abdominal ventrites 1–5 respectively.
Figure 2 in Description of the male of fossil Calomicrus eocenicus Bukejs et Bezděk (Coleoptera: Chrysomelidae: Galerucinae) from Eocene Baltic amber using X-ray microtomography
Figure 2. Calomicrus eocenicus Bukejs et Bezděk, RSKM_P3300.139, X-ray micro-CT renderings, habitus: (a) dorsal view; (b) ventral view; (c) frontal view; (d) left lateral view. Scale bars = 1.0 mm.
Figure 4 in Description of the male of fossil Calomicrus eocenicus Bukejs et Bezděk (Coleoptera: Chrysomelidae: Galerucinae) from Eocene Baltic amber using X-ray microtomography
Figure 4. Calomicrus eocenicus Bukejs et Bezděk, RSKM_P3300.139, X-ray micro-CT renderings, aedeagus: (a) dorsal view; (b) ventral view; (c) right lateral view; (d) left lateral view. Scale bars = 0.1 mm.
Figure 1 in Description of the male of fossil Calomicrus eocenicus Bukejs et Bezděk (Coleoptera: Chrysomelidae: Galerucinae) from Eocene Baltic amber using X-ray microtomography
Figure 1. Calomicrus eocenicus Bukejs et Bezděk, RSKM_P3300.139, photomicrographs, habitus: (a) dorsal view; (b) ventral view. Scale bars = 1.0 mm.
Figure 4 in A new enigmatic lineage of Dascillidae (Coleoptera: Elateriformia) from Eocene Baltic amber described using X-ray microtomography, with notes on Karumiinae morphology and classification
Figure 4. Baltodascillus serraticornis gen. et sp. nov., holotype, X-ray micro-CT renderings: (a) head, frontal view; (b) head and thorax, fronto-ventral view; (c) pro- and mesothorax, ventral view; (d) abdomen (ventrites 2–5), lateral view; (e) abdomen (ventrites 2–5), ventral view; (f) tarsus, ventral view; (g) tarsus, dorsal view. Scale bars = 1.0 mm.
Figure 3 in A new enigmatic lineage of Dascillidae (Coleoptera: Elateriformia) from Eocene Baltic amber described using X-ray microtomography, with notes on Karumiinae morphology and classification
Figure 3. Baltodascillus serraticornis gen. et sp. nov., holotype, Xray micro-CT renderings: (a) head and thorax, dorsal view; (b) head and thorax, ventral view; (c) head and thorax, right lateral view; (d) head and thorax, left lateral view. Scale bars = 1.0 mm.
Figure 2 in A new enigmatic lineage of Dascillidae (Coleoptera: Elateriformia) from Eocene Baltic amber described using X-ray microtomography, with notes on Karumiinae morphology and classification
Figure 2. Baltodascillus serraticornis gen. et sp. nov., holotype: (a) habitus, lateral view; (b) pronotum and scutellar shield, dorsal view; (c) head and pronotum, dorsal view; (d) head and thorax, ventral view; (e) tarsus, ventro-lateral view; (f) tarsus, ventral view. Scale bars = 1.0 mm (a–d), 0.3 mm (e, f).
Figure 1 in A new enigmatic lineage of Dascillidae (Coleoptera: Elateriformia) from Eocene Baltic amber described using X-ray microtomography, with notes on Karumiinae morphology and classification
Figure 1. Baltodascillus serraticornis gen. et sp. nov., holotype: (a) habitus, dorso-frontal view; (b) habitus, ventro-lateral view. Scale bar = 2.0 mm.
Figure 5 in A new enigmatic lineage of Dascillidae (Coleoptera: Elateriformia) from Eocene Baltic amber described using X-ray microtomography, with notes on Karumiinae morphology and classification
Figure 5. Pleolobus fuscescens Philippi et Philippi, 1864, female from Chile: (a) habitus, dorsal view; (b) head, lateral view; (c) head, pronotum and scutellar shield, dorsal view. Scale bars = 4.0 mm (a), 1.0 mm (b, c). All images by Jorge Jensen.
Fig. 2 in A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis
Fig. 2. Maps of China and Guangxi (A) adapted from "Croquant" on Wikimedia (licensed under CC BY 3.0). B. Map showing the region of machaeridian locality (asterisk); adapted from Google Maps.
Fig. 5 in A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis
Fig. 5. Overview of the other objects found in the sample. A. Object 3 could not be identified with certainty, but is likely part of a sclerite from the flank. B. Sclerite 9 might be from the dorsal articulation. C. Objects 15 and 16 might belong to the same, incomplete sclerite. D. Sclerite 11 preserves only the dorsal flange. E. Objects 8, 12, 13, and 14 might actually be parts of two sclerites as indicated by the white lines.
Fig. 6 in A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis
Fig. 6. View of a pair of 3D-prints of articulated right (1) and left (2) sclerites from obliquely posterior (A) and dorsal (B) views. Note the perfect fit of the sclerites. Within the hinge of sclerite 1 in B, the indentation on the right of the hinge flange is an artefact from tresholding (probably, the shell was too thin in that place). Sclerites 1 and 2 were enlarged 25 times (for original dimensions see Fig. 4).
Fig. 1 in A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis
Fig. 1. Machaeridian annelid Lepidocoleus kuangguoduni sp. nov., Nandan Formation, Eifelian, near Napiao, Guangxi (China). A. The main plate containing most machaeridian sclerites. B. The counterplate of the same specimen (it was glued back onto the slab prior to CT-scanning); note the limonitic filling of the rugae and the chaotic arrangement of the plates.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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