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689 results for “crystals”
Replication Data for: (111)-oriented, single crystal diamond tips for nanoscale scanning probe imaging of out-of-plane magnetic fields
<p>Data repository for: <strong>(111)-oriented, single crystal diamond tips for nanoscale scanning probe imaging of out-of-plane magnetic fields</strong></p> <p><em>Data description.pdf </em>describes the uploaded data.<br> <em>Data.xlsx</em> is the data represented in the paper.</p>
Can quasi-periodic gravity waves influence the shape of ice crystals in cirrus clouds?
<p>This is the Raman Lidar data recorded at Physical Research Laboratory (PRL), Ahmedabad, India owned by PRL and maintained by Dr. Som Kumar Sharma. Associate Professor and Mrs. Sourita Saha, Sci./Engg.-SC</p> <p>Data (RCS_20Feb2016.mat) is Range Corrected Signal on 20th Feb 2016 and the corresponding time (time_20Feb2016.mat) in UTC and height(height.mat) in km are provided.</p>
Higher-order and fractional discrete time crystals in Floquet-driven Rydberg atoms
<div>These folders contain data used to reproduce figures in main text.</div> <div> </div> <div>The file "fig2b.xlsx" contains the phase diagram in Figure 2 of the main text. The columns of fig2b.xlsx represent the detuning and the rows represent the frequencies of the Fourier spectrum. The values in the table represent transimission.</div> <div> </div> <div>The files "fig3a.xlsx" and "fig3c.xlsx" contain the phase diagrams in Figure 3 of the main text. The columns of fig3a.xlsx and fig3c.xlsx represent the detuning and the rows represent the frequencies of the Fourier spectrum. The values in the table represent transimission.</div> <div> </div> <div>The file "fig4a2.xlsx" contains the phase diagram in Figure 4 of the main text. The columns of fig4a2.xlsx represent represent the detuning and the rows represent the frequencies of the Fourier spectrum. The values in the table represent transimission.</div> <div> </div> <div>The files "fig5a.xlsx", "fig5b.xlsx" and "fig5c.xlsx" contain the phase diagrams in Figure 5 of the main text. The columns in fig5a.xlsx, fig5b.xlsx and fig5c.xlsx represent represent the detuning and the rows represent the frequencies of the Fourier spectrum. The values in the table represent transimission.</div> <div> </div> <div>The files "fig8a.xlsx" and "fig8b.xlsx" contain the phase diagrams in Figure 8 of the main text. The columns in fig8a.xlsx and fig8b.xlsx represent the voltages of the RF-field, and the rows represent the detuning. The values in the table represent transimission.</div> <div> </div> <div>The files "fig9b.xlsx" and "fig9d.xlsx" contain the phase diagrams in Figure 9 of the main text. The columns in fig9b.xlsx represent the frequency of the RF-field, and the rows represent the frequencies of the Fourier spectrum. The columns in fig9d.xlsx represent the voltages of the RF-field, and the rows represent the frequencies of the Fourier spectrum. The values in the table represent transimission.</div>
Poly-3-hydroxybutyrate, a crystal-mobile biodegradable polyester
<p>This Dataset comprises the raw data contained in the figures of our journal article in <em>Macromolecules </em>(DOI: 10.1021/acs.macromol.4c00938) and its Supporting Information (SI)<em>. </em>We provide a preprint of the initially submitted article including the SI for reference to the figures and their captions, necessary to use the data. Note that a few figures have changed upon revision, so please also check the published article. For copyright details and licensing we refer to the published article and the publisher. Here is the abstract of the article:</p> <p>Poly(3-hydroxybutyrate), a biodegradable thermoplastic with potential to partially replace oil-based commodities, suffers from embrittlement over storage time. We here investigate possible causes by monitoring changes in mechanical and thermal properties as well as the semicrystalline morphology (crystallinity, lamellar stack dimensions and its inhomogeneity) over time, using advanced small-angle X-ray scattering analyses for the latter. We find that the slow rise in the shear modulus of the materials is accompanied by secondary crystallization, detected as a lamellar thickening and an increase of the melting point. These morphology changes may be due to chain mobility in the crystallites. This is a feature of "crystal-mobile" polymers that are known to be able to crystallize more fully than their crystal-fixed counterparts. We present first evidence of the related crystalline <em>α<sub>c</sub></em>-relaxation in P3HB by dynamic-mechanical analysis (DMA) and investigate the process microscopically by advanced magic-angle spinning solid-state exchange NMR techniques, specifically centerband-only detection of exchange. We show that monomer jumps in the P3HB crystals are comparably slow (i.e., with an average correlation time <em>τ<sub>c</sub></em> of 0.1 s at 120 °C). Their apparent activation energy (80-90 kJ/mol) is found to be independent of the crystallization temperature and in good agreement with the DMA results.</p>
Data for "Supervised machine learning methods for crystal structure prediction of the binary Cs-Te system"
<p>Crystal structures, high-throughput calculations and trained machine learning models presented in the paper "Supervised machine learning methods for crystal structure prediction of the binary Cs-Te system".</p> <ul> <li><em>crystal_datasets </em>contains the input/output data sets of crystal structures for high-throughput calculations and ML models.</li> <li><em>aiida_ht_calculations </em>contains the data regarding the high-throughput DFT calculations.</li> <li><em>ml_models</em> contains the trained ML models.</li> </ul> <p>Eeach zip-archive contains a jupyter-notebook examplifying how the data can be accessed and reused.</p>
Unveiling the Autocatalytic Growth of Li2S Crystals at the Solid-Liquid Interface in Lithium-Sulfur Batteries
<p>Electrocatalysts have been extensively employed to suppress the shuttling effect in lithium-sulfur (Li-S) batteries. However, it remains challenging to probe the sulfur redox reactions and mechanism at the electrocatalyst/LiPS interface after the active sites are covered by the solid discharge products Li2S/Li2S2. Here, we demonstrate the intrinsic autocatalytic activity of the Li2S (100) plane towards lithium polysulfides on single-atom nickel (SANi) electrocatalysts. Guided by theoretical models and experimental data, it is concluded that LiPS dissociates into Li2S2 and short-chain LiPS on the Li2S (100) plane. Subsequently, Li2S2 undergoes further lithiation to Li2S on the Li2S (100) surface, generating a new Li2S (100) layer, thus enabling the autocatalytic formation of a new Li2S (100) surface. Benefiting from the autocatalytic growth of Li2S, the concentration of LiPS in the electrolyte remains at a lower level, enabling Li-S batteries under high loading and low electrolyte conditions to exhibit superior electrochemical performance.</p>
Light-Induced Polaronic Crystals in Single-Layer Transition Metal Dichalcogenides
<p>Publication set for Light-Induced Polaronic Crystals in Single-Layer Transition Metal Dichalcogenides,</p> <p>Nano Letters <span>2024</span><span>, 24</span><span>, 42</span><span>, 13179–13184, <a title="DOI URL" href="https://doi.org/10.1021/acs.nanolett.4c03065">https://doi.org/10.1021/acs.nanolett.4c03065</a></span></p> <p> </p>
The Relation Between Crystal Structure and the Occurrence of Quantum-Rotor Induced Polarization
<p>NMR raw data as TopSpin (Bruker Corporation) files and XRD data as Origin files for the article titled "The Relation Between Crystal Structure and the Occurrence of Quantum-Rotor Induced Polarization".</p>
FIGURE 3 in New sources of taxonomic information for earthstars (Geastrum, Geastraceae, Basidiomycota): phenoloxidases and rhizomorph crystals
FIGURE 3. Morphological variation of rhizomorph crystals in Geastrum. A. Geastrum saccatum (herb. J.C. Zamora 535): Acicular crystals in an irregular arrangement. B. Geastrum lageniforme (herb. J.C. Zamora 537): Horn-like crystals grouped on an irregular candelabrum-like structure. C. Geastrum velutinum (MA-Fungi 83786): Narrow oblique prisms covering a dilated cystidioid element. D. Geastrum schweinitzii (MA-Fungi 83779): Coarser and more irregular oblique prisms covering a narrow cystidioid element. E. Geastrum triplex (herb. J.C. Zamora 552): Druses or rose-like aggregates of bipyramidal crystals. F. Geastrum argentinum (MA-Fungi
FIGURE 2 in New sources of taxonomic information for earthstars (Geastrum, Geastraceae, Basidiomycota): phenoloxidases and rhizomorph crystals
FIGURE 2. Phenograms of the G. lageniforme s.l., G. saccatum s.l., and G. triplex s.l. samples studied, obtained from phenetic analyses based on distance matrices. A. Classical morphological traits phenogram (analysis 5). B. Phenogram of the combined dataset from phenoloxidases spot tests and rhizomorph features matrices (analysis 6). Numbers above branches are BS values from Fitch- Margoliash based algorithm and Neighbour-Joining analyses, and numbers below branches are AU p-values from clustering analyses based on Gower's distance matrices. Branches are indicated in bold when at least two of the three branch supports are significant (BS ≥ 70%, AU ≥ 95%).
FIGURE 1 in New sources of taxonomic information for earthstars (Geastrum, Geastraceae, Basidiomycota): phenoloxidases and rhizomorph crystals
FIGURE 1. Phenograms of the studied taxa obtained from phenetic analyses based on distance matrices. A. Classical morphological traits phenogram (analysis 1). B. Phenoloxidases matrix phenogram (analysis 2). C. Rhizomorphs matrix phenogram (analysis 3). D. Combined dataset phenogram (analysis 4). Numbers above branches are BS values from Fitch-Margoliash based algorithm and Neighbour-Joining analyses, and numbers below branches are AU p-values from clustering analyses based on Gower's distance
Engineering and Production of the Light-Driven Proton Pump Bacteriorhodopsin in 2D Crystals for Basic Research and Applied Technologies
<p>Data to Stauffer et al. (2020), Methods Protoc.</p>
Data set for phase-field studies of crystal growth in single-seal syntaxial veins in limestone
<p>The numerical data in this repository consists of the simulation data of single-seal syntaxial calcite vein formation in limestone. The simulations were performed using the software package named "Pace3D (v. 2.5.1)".</p> <p>The data is organized, the way it appears in the figures in the manuscript and the folders are named accordingly.</p> <ul> <li>The simulation data shows intermediate growth stages and was converted from Pace3D output data format to VTK data format. The VTK files can be visualized using open source software packages like Paraview. The data files in each subfolder are also compressed (file format *.gz). For visualization the data has to be decompressed (e.g. with gzip, 7zip).</li> </ul>
FIGURE 5 in CCDC 696447: Experimental Crystal Structure Determination
FIGURE 5. Accumulation curve of the number of species of Blattaria (Dictyoptera) recorded in Brazil described over time.
FIGURE 3 in CCDC 696447: Experimental Crystal Structure Determination
FIGURE 3. Percentage of the number of types housed in each institution. See Institutional Abbreviations at the beginning.
FIGURE 2 in CCDC 696447: Experimental Crystal Structure Determination
FIGURE 2. Number of species of Blattaria (Dictyoptera) recorded in Brazil described at each decade from 1750, when the first species were described, until present days.
Decreased aviation leads to increased ice crystal number and a positive radiative effect
<p>This is the dataset to support our paper titled of "Decreased aviation leads to increased ice crystal number and a positive radiative effect". Travel restrictions in the wake of the COVID-19 pandemic resulted in an unprecedented decrease of 73% in global flight mileage in April-May 2020 compared to 2019. Here we examine the CALIPSO satellite observations and find a significant increase in ice crystal number concentrations (Ni) in cirrus clouds in the mid-latitudes of the Northern Hemisphere, which we attribute to an increase in homogeneous freezing when soot from aircraft emissions is reduced. A relatively small positive radiative effect of 21 mWm<sup>-2</sup> is estimated if a decrease in aircraft traffic continues. We infer from this analysis that the worldwide adoption of biofuel blending in aircraft fuels that lead to smaller soot emissions could lead to a significant change in the microphysical properties of cirrus clouds but a rather small positive radiative effect.</p> <p>This dataset including three sections. The data are model output or input from climate simulations conducted with Community Earth System Model (CESM) version 1.2.2 with IMPACT aerosol module. The input files are default in the component set of "FC5" in the CESM model. The files in the dataset are described below:</p> <p><strong>Model code.zip: </strong>This tar file contains the sources code of the IMPACT aerosol module that we implemented as additional aerosol module embedded in the CESM model which is publicly available from NCAR repository. This code is used to create model output list in this dataset.</p> <p><strong>2020_act.rar: </strong>This tar file contains NetCDF out file of daily mean meteorological and aerosol fields during January and May in 2020 from the model based on the actual aviation activity in 2020.</p> <p><strong>2020_yes.rar: </strong>This tar file contains NetCDF out file of daily mean meteorological and aerosol fields during January and May in 2020 from the model assuming the aviation activity in 2020 is same as 2019.</p> <p><strong>Year_act.zip: </strong>This tar file contains NetCDF out file of annual mean meteorological and aerosol fields in the next five years from the model assuming the aviation restriction in 2020 last for the next five years.</p> <p><strong>Year_yes.zip: </strong>This tar file contains NetCDF out file of annual mean meteorological and aerosol fields in the next five years from the model assuming the aviation activity keeping same as 2019 in the next five years.</p> <p><strong>filght.zip:</strong> The FlightRadar24 commercial database of flight mileages from January 2019 to May 2020 at 1°x1° resolution, which were used as input file in our model.</p> <p> </p> <p> </p>
FIGURES and. Crystal-like deposition on the surface of medullary hyphae, probably due to lichen substances. 21. Ramalina subcalcarata, scale = 8.65 µm. 22. Ramalina pusiola, scale = 10.35 µm. in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURES and. Crystal-like deposition on the surface of medullary hyphae, probably due to lichen substances. 21. Ramalina subcalcarata, scale = 8.65 µm. 22. Ramalina pusiola, scale = 10.35 µm.
FIGURE. View of the upper side in R. subcalcarata showing the smooth surface with crystal-like deposition (probably usnic acid). Scale = 40 µm. in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. View of the upper side in R. subcalcarata showing the smooth surface with crystal-like deposition (probably usnic acid). Scale = 40 µm.
Multidimensional XUV Photoemission Spectroscopy of 1T-TiTe2 for different crystal orientations
<p>We performed extreme ultraviolet (21.7 eV) multidimensional angle-resolved photoemission spectroscopy for two different crystal orientations linked to each other by mirror symmetry, we isolate and identify the role of orbital texture in photoemission from the transition metal dichalcogenide 1T-TiTe$_2$. By comparing these experimental results with theoretical calculations based on both a quantitative one-step model of photoemission and an intuitive tight-binding model, we unambiguously demonstrate the link between the momentum-dependent orbital orientation and the emergence of strong intrinsic linear dichroism in the photoelectron angular distributions.</p>
ScienceDex guides
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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.