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1,938 results for “Resonances”
Dataset for NMR quadrature echo and T1 saturation recovery pulse sequences underlying the publication 'On the quantification of solid phases in hydrated cement paste by 1H nuclear magnetic resonance relaxometry'
<p>This record comprises the datasets of combined 1H NMR quadrature echo and T1 saturation recovery pulse sequences underlying the publication “On the quantification of solid phases in hydrated cement paste by 1H nuclear magnetic resonance relaxometry” by Robert Schulte Holthausen & Peter J. McDonald, Cement and Concrete Research, https://doi.org/10.1016/j.cemconres.2020.106095.</p> <p><br> In this work different solid phases, important to cement paste hydration, are investigated with low-field bench top 1H nuclear magnetic resonance with a view to developing an alternate characterisation methodology that requires minimal invasive or destructive sample preparation.</p> <p><br> A combination of the well-established quadrature echo pulse sequence with variable pulse gap together with a T1 saturation recovery quadrature echo pulse sequence is used.</p>
Silicon-29 Magic-Angle Flipping Nuclear Magnetic Resonance dataset for Na2O•1.5SiO2 glass
<p>Raw and processed silicon-29 Magic-Angle Flipping Nuclear Magnetic Resonance dataset for Na2O•1.5SiO2 glass from the publication "Silicon site distributions in an alkali silicate glass derived by two-dimensional Si-29 nuclear magnetic resonance" in <a href="https://doi.org/10.1021/jp9700342">J. Non-Cryst. Solids, 204, 294 (1996)</a>, by P. Zhang, C. Dunlap, P. Florian, P. J. Grandinetti, I. Farnan, and J. F. Stebbins.</p> <p>Details of the csdf dataset format are given in <a href="https://doi.org/10.1371/journal.pone.0225953"><em>PLOS ONE,</em> 15(1): e0225953 (2020)</a>, "Core Scientific Dataset Model: A lightweight and portable model and file format for multi-dimensional scientific data," D. Srivastava, T. Vosegaard, D. Massiot, and P.J. Grandinetti. The data within csdf files can be accessed with the Python package <a href="https://csdmpy.readthedocs.io/en/stable">csdmpy</a>, or other CSDM-compliant software.</p>
Data set accompanying: Topology of the Warm plasma dispersion relation at the second Harmonic Electron Cyclotron Resonance Layer
<p>The Warm Plasma Dispersion Relation, for waves in the electron cyclotron resonance range of frequencies, can be cast into the form of a bi-quadratic equation for $N_\perp$, where the coefficients are a function of $N_\perp^2$ and an iterative procedure is required to obtain a solution. However, this iterative procedure is not well understood and fails to converge towards a solution at the second harmonic resonance layer. In particular at higher densities where the wave can couple to an electron Bernstein wave.<br> This paper focuses on a solution to the poor convergence of the iterative method, enabling determination of the topology of the dispersion relation around the second harmonic using a fully relativistic code for oblique waves.<br> A feed-forward controller is proposed with the ability to adjust the rotation of a step of $N_\perp^2$ within the complex plane, while also limiting the step-size.<br> It is shown that implementation of the controller stabilizes unstable solutions, while improving overall robustness of the iteration. This allows the evaluation of the coupling between the fast extraordinary mode and electron Bernstein waves at the second harmonic electron cyclotron resonance layer, for non-perpendicularly propagating waves.</p>
Open Data for Role of Inter-Cluster and Inter-Ligand Dynamics of [Ag25(DMBT)18]– Nanoclusters by Multinuclear Magnetic Resonance Spectroscopy.
<p>Open Data for publication "Role of Inter-Cluster and Inter-Ligand Dynamics of [Ag<sub>25</sub>(DMBT)<sub>18</sub>]<sup>–</sup> Nanoclusters by Multinuclear Magnetic Resonance Spectroscopy" published in The Journal of Physical Chemistry.</p>
Data for 'Ultrafast strain engineering and coherent structural dynamics from resonantly driven optical phonons in LaAlO3'
<p>This folder contains all the raw data required to generate the figures in the work 'Ultrafast strain engineering and coherent structural dynamics from resonantly driven optical phonons in LaAlO3'. </p> <p> </p> <p><strong>Contents</strong></p> <p><em>Figure 2:</em></p> <p>(a) Time resolved balanced reflection data for the short and long time periods: LongTimeData.txt and ShortTimeData.txt. The corresponding Fourier spectra shown in the inset: InsetFourier_LongTimeData.txt and InsetFourier_ShortTimeData.txt</p> <p>(b) Time resolved polarization rotation data for the short and long time periods: LongTimeData.txt and ShortTimeData.txt. The corresponding Fourier spectra shown in the inset: InsetFourier_LongTimeData.txt and InsetFourier_ShortTimeData.txt</p> <p><em>Figure 3:</em></p> <p>(a) Time-resolved polarization rotation data after excitation at two different pump photon energies: trace_85meV_excitation.txt and trace_124meV_excitation.txt. Amplitude as function of central pump photon energy: Inset_Wavelength_dependence.txt and the absorption of LaAlO3: Inset_absorption.txt</p> <p>(b) The raw data for different polarizations: traces_angle_dependence.txt</p> <p>(c) The experimentally obtained (AmplitudeExperiment.txt) and DFT calculated values (AmplitudeDFT.txt).</p> <p><em>Figure 4</em></p> <p>(a) Fourier spectra (and double Gaussian fit) corresponding to time-resolved measurments after excitation at different central photon energies: FourierSpectraData.txt (and FourierSpectraFits). Inset: Extracted peak amplitude (Inset_StrainvsWavelength.txt) and Gaussian fit of the TA strain (Inset_GaussianFit.txt). </p> <p>(b)The TA/LA ratio as function of pump photon energy (SoundWaveRatio.txt) and the Lorentzian fit (RatioFit.txt). And the absorption of LaAlO3 (Absorption_coefficient.txt).</p> <p> </p> <p> </p> <p> </p> <p> </p>
Observational Signatures of Tightly Wound Spirals Driven by Buoyancy Resonances in Protoplanetary Disks
<p>These are simulated CO data cubes presented in "Observational Signatures of Tightly Wound Spirals Driven by Buoyancy Resonances in Protoplanetary Disks" by Bae, Teague and Zhu. They represent simulated 12CO and 13CO ALMA observations using the standard model (see Section 3.1.1 of the paper), with three different planet masses (0.5, 1, and 2 Jupiter-mass) and five different disk inclination values (5, 15, 30, 45, and 60 degrees).</p>
Towards resolving the complex paramagnetic NMR spectrum of small laccase: Assignments of resonances to residue specific nuclei
<p>NMR dataset as TopSpin (Bruker Corporation) files for the article titled "Towards resolving the complex paramagnetic NMR spectrum of small laccase: Assignments of resonances to residue specific nuclei" (https://doi.org/10.5194/mr-2020-31).</p>
Dataset for "Verifying Monte Carlo simulations of diffusion tensor cardiovascular magnetic resonance using a finite volume method"
<p>This dataset contains the results of random walk and finite volume simulations of diffusion in cardiac tissue. The data was used for the work presented at the 8th World Congress of Biomechanics in 2018.</p>
Data from: Modelling and simulation of a thermally induced optical transparency in a dual micro-ring resonator
This paper introduces the simulation and modelling of a novel dual micro-ring resonator. The geometric configuration of the resonators, and the implementation of a simulated broadband excitation source, results in the realization of optical transparencies in the combined through port output spectrum. The 130 nm silicon on insulator rib fabrication process is adopted for the simulation of the dual-ring configuration. Two titanium nitride heaters are positioned over the coupling regions of the resonators, which can be operated independently, to control the spectral position of the optical transparency. A third heater, centrally located above the dual resonator rings, can be used to red shift the entire spectrum to a required reference resonant wavelength. The free spectral range with no heater currents applied is 4.29 nm. For a simulated heater current of 7 mA (55.7 mW heater power) applied to one of the through coupling heaters, the optical transparency exhibits a red shift of 1.79 nm from the reference resonant wavelength. The ring-to-ring separation of approximately 900 nm means that it can be assumed that there is a zero ring-to-ring coupling field in this model. This novel arrangement has potential applications as a gas mass airflow sensor or a gas species identification sensor.
Magnetic Resonance Imaging Scan of the Brain of a Slow Loris (Nycticebus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Slow Loris (<i>Nycticebus</i>) from http://braincatalogue.org/Slow_loris</p>
Magnetic Resonance Imaging Scan the Brain of a Chapman's Zebra (Equus quagga chapmani)
<p>Magnetic Resonance Imaging Scan of the Brain of a Chapman's Zebra (Equus quagga chapmani) from http://braincatalogue.org/Chapman's_zebra</p>
Magnetic Resonance Imaging Scan of the Brain of a Sloth Bear (Melursus ursinus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Sloth Bear (<i>Melursus ursinus</i>) from http://braincatalogue.org/Sloth_bear</p>
Magnetic Resonance Imaging Scan of the Brain of a Thylacine (Thylacinus cynocephalus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Thylacine (<i>Thylacinus cynocephalus</i>) from http://braincatalogue.org/Thylacine</p>
Magnetic Resonance Imaging Scan of the Brain of a Gray Wolf (Canis lupus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Gray Wolf (<i>Canis lupus</i>) from http://braincatalogue.org/Gray_wolf</p>
Magnetic Resonance Imaging Scan of the Brain of a La Plata Dolphin (Pontoporia blainvillei)
<p>Magnetic Resonance Imaging Scan of the Brain of a La Plata Dolphin (<i>Pontoporia blainvillei</i>) from http://braincatalogue.org/La_Plata_dolphin</p>
Magnetic Resonance Imaging Scan of the Brain of a Giraffe (Giraffa camelopardalis)
<p>Magnetic Resonance Imaging Scan of the Brain of a Giraffe (<i>Giraffa camelopardalis</i>) from http://braincatalogue.org/Giraffe</p>
Magnetic Resonance Imaging Scan of the Brain of a Nile Crocodile (Crocodylus niloticus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Nile Crocodile (<i>Crocodylus niloticus</i>) from http://braincatalogue.org/Nile_crocodile</p>
Magnetic Resonance Imaging Scan of the Brain of a Leopard (Panthera pardus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Leopard (<i>Panthera pardus</i>) from http://braincatalogue.org/Leopard</p>
Magnetic Resonance Imaging Scan of the Brain of a Okapi (Okapia johnstoni)
<p>Magnetic Resonance Imaging Scan of the Brain of a Okapi (<i>Okapia johnstoni</i>) from http://braincatalogue.org/Okapi</p>
Magnetic Resonance Imaging Scan of the Brain of a Red kangaroo (Macropus rufus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Red kangaroo (<i>Macropus rufus</i>) from http://braincatalogue.org/Red_kangaroo</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.