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504 results for “pores”
Data from: Fractal characteristics of shale pore structure and its influence on seepage flow
<p>The migration law of shale gas has a significant influence on the seepage characteristics of shale, and the flow of the gas is closely related to the pore structure. To explore the influence of shale pore parameters on permeability in different diffusion zones, the pore structure of the shale in the Niutitang Formation in Guizhou, China, was analyzed based on liquid nitrogen adsorption experiments and nuclear magnetic resonance experiments. The relationship among fractal dimension, organic carbon content (TOC), and BET specific surface area was analyzed based on the fractal dimension of shale pores calculated using the Frenkel‒Halsey‒Hill model. Shale permeability was calculated using the Knudsen number and permeability equation, and the influence of the fractal dimension and porosity in different diffusion zones on shale permeability was analyzed. Previous studies have shown that: (1) the pores of shale in the Niutitang Formation, Guizhou are mainly distributed within 1‒100 nm, with a small total pore volume per unit mass, average pore diameter, large BET specific surface area, and porosity; (2) fractal dimension has a negative correlation with average pore diameter and TOC content and a quadratic relationship with BET specific surface area; (3) permeability has a positive correlation with Kn, porosity, and fractal dimension. In the transitional diffusion zone, fractal dimension and porosity have a significant impact on permeability. In the Knudsen diffusion zone, porosity has no obvious effect on permeability. The methodologies and results presented will enable more accurate characterization of the complexity of pore structures of porous media, and allow further understanding of the seepage law of shale gas.</p>
Data for integrative modeling of the Nuclear Pore Complex from Schizosaccharomyces pombe
<p>Repository with input and output files utilized for integrative modeling of the Nuclear Pore Complex from Schizosaccharomyces pombe.</p>
Videos of dynamic rupture in models of the 2004 Sumatra-Andaman earthquake published in Madden et al. (2022) "The state of pore fluid pressure and 3D megathrust earthquake dynamics" JGR-Solid Earth
<p>Videos of dynamic rupture from models based on the 2004 Sumatra-Andaman earthquake presented in Madden, E. H., T. Ulrich, A.-A. Gabriel (2022). The state of pore fluid pressure and 3D megathrust earthquake dynamics, Journal of Geophysical Research - Solid Earth, <a href="https://doi.org/10.1029/2021JB023382">https://doi.org/10.1029/2021JB023382</a>. (Previous preprint available at: <a href="https://doi.org/10.1002/essoar.10508297.1">https://doi.org/10.1002/essoar.10508297.2</a>.)</p> <p> </p>
◂Fig. 6 Scanning electronmicroscopy images of Ramisyllis kingghidorahi n. sp. A Anterior region up to first 17 segments, dorsal view. B Prostomium in detail, anterodorsal view (broken antennae on stub). C Prostomium and first segments in detail showing dorsal bands of cilia, dorsal view. D–F Pores on dorsal cirri. Scale bars: 1 mm A, 200 µm B, 300 µm C, 50 µm E, 30 µm D, F in Ramisyllis kingghidorahi n. sp., a new branching annelid from Japan
◂Fig. 6 Scanning electronmicroscopy images of Ramisyllis kingghidorahi n. sp. A Anterior region up to first 17 segments, dorsal view. B Prostomium in detail, anterodorsal view (broken antennae on stub). C Prostomium and first segments in detail showing dorsal bands of cilia, dorsal view. D–F Pores on dorsal cirri. Scale bars: 1 mm A, 200 µm B, 300 µm C, 50 µm E, 30 µm D, F
◂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
Isotope-selective pore-opening in a flexible metal-organic framework
<p>This dataset contains raw data underlying the results related to the paper "Isotope-selective pore-opening in a flexible metal-organic framework".</p> <p> </p>
Dataset for WRR journal "Pore space deformation and its implications for two-phase flow through porous media: A micro-scale experimental investigation"
<p>Pressure drop, pore network model</p> <p>Calculation of REVs, strains, absolute and relative permeabilities, porosities profiles, grain size distribution, pore and throat size distribution. coordination number, aspect ratio, etc.</p>
FIGURE. Floral habit and structure of C. spongifolia. A. Type specimen in situ with open, spathe limb (apex is reflexed out of view), and green spathe tube (ca. 6 cm long). B. Adjacent plant with inflorescences and prophylls. C. Spadix showing from top: sterile appendix, staminate (male) zone, sterile interstice, and green pistillate (female) zone with tapered, conical form. D. Detail of female zone showing a few basal staminodes. E–G. Berries of the preserved type specimen. G. Dissected berry with orthotropous ovules (some outlined) attached by funicles to parietal placentae (arrows). H. Surface of male zone showing closely-packed synandria. I. Synandria separated to show fused anther sacs beneath apical pores (example in center has 8 pores, 8 anthers) J. Mature fruiting head, with single berry removed to show seed packing and 67 seeds extracted (scale bar units: 1 mm) (Bach Ma NP; type 2020; fruit and seeds 2018). Photos: NVD and PJM. in Colocasia spongifolia sp. nov. (Araceae) in southern China and central Vietnam
FIGURE. Floral habit and structure of C. spongifolia. A. Type specimen in situ with open, spathe limb (apex is reflexed out of view), and green spathe tube (ca. 6 cm long). B. Adjacent plant with inflorescences and prophylls. C. Spadix showing from top: sterile appendix, staminate (male) zone, sterile interstice, and green pistillate (female) zone with tapered, conical form. D. Detail of female zone showing a few basal staminodes. E–G. Berries of the preserved type specimen. G. Dissected berry with orthotropous ovules (some outlined) attached by funicles to parietal placentae (arrows). H. Surface of male zone showing closely-packed synandria. I. Synandria separated to show fused anther sacs beneath apical pores (example in center has 8 pores, 8 anthers) J. Mature fruiting head, with single berry removed to show seed packing and 67 seeds extracted (scale bar units: 1 mm) (Bach Ma NP; type 2020; fruit and seeds 2018). Photos: NVD and PJM.
FIGURE. Blades of C. spongifolia. A. Sub-marginal and marginal collective veins, with laminal tissue (2–4 mm) between. B. Marginal collective veins fused below shallow sinus. C. Underside with spongy appearance produced by "false pores"; and thick, rubbery texture indicated by axial wrinkles formed in crease. D. Underside showing primary vein and pinnate lateral veins surrounded by spongy tissue. E. Sub-stomatal cavities revealed by transmitted light (scale unit 0.25 mm), F. Sub-stomatal cavities revealed by removing lower epidermis (A–D: Mengla County, 2018. E–F: Bach Ma NP seedling, ex situ). Photos: PJM. in Colocasia spongifolia sp. nov. (Araceae) in southern China and central Vietnam
FIGURE. Blades of C. spongifolia. A. Sub-marginal and marginal collective veins, with laminal tissue (2–4 mm) between. B. Marginal collective veins fused below shallow sinus. C. Underside with spongy appearance produced by "false pores"; and thick, rubbery texture indicated by axial wrinkles formed in crease. D. Underside showing primary vein and pinnate lateral veins surrounded by spongy tissue. E. Sub-stomatal cavities revealed by transmitted light (scale unit 0.25 mm), F. Sub-stomatal cavities revealed by removing lower epidermis (A–D: Mengla County, 2018. E–F: Bach Ma NP seedling, ex situ). Photos: PJM.
Pore water and headspace gas data for Site J1003 (Chilean Margin)
<p>This dataset includes pore water chemical data and headspace gas data from Site J1003 taken on the south Chilean Margin. Tab 3 includes Na and K data used in geothermometry calculations. Data have been used in a preprint manuscript uploaded at EarthArXiv (<a href="https://doi.org/10.31223/X5X92N">https://doi.org/10.31223/X5X92N</a>), which is currently in revision at Nature Communications Earth & Environment. </p>
Research on Climate Change Based on Carbonate Pore Analysis in Jinping
<p>In this study, the porosity value of carbonate rock obtained via the image analysis method is studied. The porosity of carbonate rocks is studied using the gray value and red–green–blue (RGB) value of polarized images of carbonate rock slides. Based on comparison of algorithms, the saddle line algorithm is selected to obtain the porosity of the carbonate rocks. The climate change trend in the Jinping area is studied by plotting the porosity value of the carbonate rocks as a curve. By comparing the curve established using the climate change data from published articles, it is found that the B value curve obtained using the saddle line is the closest to the curve established using the climate change data from published articles. To better reflect the climate change trend, a cardioids curve is used to fit the climate change trend curve.</p>
FIGURE. Marchantia emarginata Reinw., Blume & Nees (A) Dorsal surface of thallus (B, C) Epidermal pores from the dorsal epidermis of thallus (D) Laminal scale (E) Median scale (F) Appendage of laminal scale (G) Margin of the gemma cup. A–G Ruklani & Rubasinghe 169-14SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Marchantia emarginata Reinw., Blume & Nees (A) Dorsal surface of thallus (B, C) Epidermal pores from the dorsal epidermis of thallus (D) Laminal scale (E) Median scale (F) Appendage of laminal scale (G) Margin of the gemma cup. A–G Ruklani & Rubasinghe 169-14SR (PDA).
FIGURE. Plagiochasma appendiculatum Lehm. & Lindenb. II. (A) Green colour dorsal surface of thallus with notched apices (B) Cross section of thallus with air chambers and ventral tissue with oil bodies (C) Ventral scale with appendage (D) Slightly raised epidermal pore. A–E Ruklani & Rubasinghe 205-14SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Plagiochasma appendiculatum Lehm. & Lindenb. II. (A) Green colour dorsal surface of thallus with notched apices (B) Cross section of thallus with air chambers and ventral tissue with oil bodies (C) Ventral scale with appendage (D) Slightly raised epidermal pore. A–E Ruklani & Rubasinghe 205-14SR (PDA).
FIGURE. Reboulia hemisphaerica (L.) Raddi I. (A) dorsal surface of thallus with archegoniphores B) female receptacles (C) archegoniphore (D) male receptacle (E) ventral scale (F) appendage of ventral scale G) mature female receptacle with sporophytes (H) epidermal pore from the dorsal epidermis of the thallus (I) cross section of an epidermal pore. A–C, E–I, Ruklani & Rubasinghe 211-14SR (PDA); D, Ruklani & Rubasinghe 303-15SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Reboulia hemisphaerica (L.) Raddi I. (A) dorsal surface of thallus with archegoniphores B) female receptacles (C) archegoniphore (D) male receptacle (E) ventral scale (F) appendage of ventral scale G) mature female receptacle with sporophytes (H) epidermal pore from the dorsal epidermis of the thallus (I) cross section of an epidermal pore. A–C, E–I, Ruklani & Rubasinghe 211-14SR (PDA); D, Ruklani & Rubasinghe 303-15SR (PDA).
FIGURE. Marchantia papillata Raddi. subsp. grossibarba (Steph.) Bischl. (A) Dorsal surface of thallus (B & C) Epidermal pores, surface view (D) Cross section of epidermal pore (E) Laminal scale (F) Median scale (G & H) Appendages of laminal scales (I & J) Male receptacles (K) Archegoniophore (L & M) Female receptacles (N) Cross section of archegoniophore stalk (O) Light microscope view of spore. A–D, F, G, H, K, L, M, N Ruklani & Rubasinghe 04-14SR (PDA); E—Ruklani & Rubasinghe 14-14SR (PDA); I–J Ruklani & Rubasinghe 28-14 SR(PDA); O—Ruklani & Rubasinghe 415-16SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Marchantia papillata Raddi. subsp. grossibarba (Steph.) Bischl. (A) Dorsal surface of thallus (B & C) Epidermal pores, surface view (D) Cross section of epidermal pore (E) Laminal scale (F) Median scale (G & H) Appendages of laminal scales (I & J) Male receptacles (K) Archegoniophore (L & M) Female receptacles (N) Cross section of archegoniophore stalk (O) Light microscope view of spore. A–D, F, G, H, K, L, M, N Ruklani & Rubasinghe 04-14SR (PDA); E—Ruklani & Rubasinghe 14-14SR (PDA); I–J Ruklani & Rubasinghe 28-14 SR(PDA); O—Ruklani & Rubasinghe 415-16SR (PDA).
FIGURE. Lunularia cruciata (L.) Dumort. ex Lindb. I. (A) Dorsal surface of thallus with gemma cups B) Epidermal pore from dorsal epidermis of thallus (C) Gemma (D) Ventral scale (E) Appendage of ventral scale (F) Cells with oil bodies on ventral scale (G) Cross section of epidermal pore and air chambers. A–G, Ruklani & Rubasinghe 113-14SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Lunularia cruciata (L.) Dumort. ex Lindb. I. (A) Dorsal surface of thallus with gemma cups B) Epidermal pore from dorsal epidermis of thallus (C) Gemma (D) Ventral scale (E) Appendage of ventral scale (F) Cells with oil bodies on ventral scale (G) Cross section of epidermal pore and air chambers. A–G, Ruklani & Rubasinghe 113-14SR (PDA).
FIGURE. Plagiochasma rupestre (G. Forst.) Steph. I. (A) Thallus. (B) Thallus with immature male and female receptacles (C) Female receptacle. (D, E). Ventral scales. (F) Epidermal pore, surface view (G) Epidermal pore cross section. (H) Archegoniophore. (I & J) Light microscopic views of spores. A–B, D–G Ruklani & Rubasinghe 114-14SR (PDA); C Ruklani & Rubasinghe 02-14SR (PDA) H–J Ruklani & Rubasinghe 86-14SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Plagiochasma rupestre (G. Forst.) Steph. I. (A) Thallus. (B) Thallus with immature male and female receptacles (C) Female receptacle. (D, E). Ventral scales. (F) Epidermal pore, surface view (G) Epidermal pore cross section. (H) Archegoniophore. (I & J) Light microscopic views of spores. A–B, D–G Ruklani & Rubasinghe 114-14SR (PDA); C Ruklani & Rubasinghe 02-14SR (PDA) H–J Ruklani & Rubasinghe 86-14SR (PDA).
FIGURE. Marchantia acaulis Steph. (A) Dorsal surface of thallus (B) Archegoniophores (C) Female receptacle (D & E) Epidermal pores from the dorsal epidermis of the thallus (F) Laminal scale (G) Median scale (H) Appendage of laminal scale (I) Margin of the gemma cup. Ruklani & Rubasinghe 108-14SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Marchantia acaulis Steph. (A) Dorsal surface of thallus (B) Archegoniophores (C) Female receptacle (D & E) Epidermal pores from the dorsal epidermis of the thallus (F) Laminal scale (G) Median scale (H) Appendage of laminal scale (I) Margin of the gemma cup. Ruklani & Rubasinghe 108-14SR (PDA).
FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20).
Kintsugi Imaging of Battery Electrodes: Distinguishing Pores from the Carbon Binder Domain using Pt Deposition (Data)
<p>Figures and data files used to construct the figures in the 2022 paper "Kintsugi Imaging of Battery Electrodes: Distinguishing Pores from the Carbon Binder Domain using Pt Deposition."</p> <p> </p>
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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
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