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101 results for “dielectric”
List of biomaterials with dielectric properties
<p>List of bio-materials with their corresponding dielectric constant and loss tangent.</p>
Figure 4: Nyquist diagrams ² 00 (!¿¾) = f(² 0 (!¿¾))T 166-TOWARD THE PHYSICAL BASIS OF COMPLEX SYSTEMS: DIELECTRIC ANALYSIS OF POROUS SILICON NANOCHANNELS IN THE ELECTRICAL DOUBLE LAYER LENGTH RANGE
<p>Fig.4. This behaviour denotes that the EDL is not an ideally<br> capacitor, but also is not a disipative region, depending both on the EDL<br> thickness and the frequency range of the applied ¯eld [7]. The composition<br> (by thickness) of the EDL determines essentially the dielectric response of the<br> interface system. Compared with experimental results, the dielectric pro¯le<br> of this higher length scales model, can provides a more complet description of<br> the solvent properties for a given electrode.</p>
Figure 1: EDL structure for p-Si-TOWARD THE PHYSICAL BASIS OF COMPLEX SYSTEMS: DIELECTRIC ANALYSIS OF POROUS SILICON NANOCHANNELS IN THE ELECTRICAL DOUBLE LAYER LENGTH RANGE
<p>Figure 1: EDL structure for p-Si (SCL negative charged,²F < ²FR )/aqueous<br> solvent interface. The electrostatic potential and charged atoms in solvent<br> distributions vs the distance z from the wall.</p>
Figure 3: The dependencies ² 00 (log !¿¾). The values are normalized at ² 00 max-TOWARD THE PHYSICAL BASIS OF COMPLEX SYSTEMS: DIELECTRIC ANALYSIS OF POROUS SILICON NANOCHANNELS IN THE ELECTRICAL DOUBLE LAYER LENGTH RANGE
<p>Fig.3. The conductivity relaxation occurs at<br> lowing frequencies. The form of the ²<br> 00<br> (!) = f(²<br> 0<br> (!)) diagrams changes from<br> a vertical line (a), to any deformate semicircles (b, c, d) having the angle to<br> real axe below ¼<br> 2 , Fig.4. This behaviour denotes that the EDL is not an ideally<br> capacitor, but also is not a disipative region, depending both on the EDL<br> thickness and the frequency range of the applied ¯eld [7]. The composition<br> (by thickness) of the EDL determines essentially the dielectric response of the<br> interface system. Compared with experimental results, the dielectric pro¯le<br> of this higher length scales model, can provides a more complet description of<br> the solvent properties for a given electrode.</p>
Figure 2: The dependencies ² 0 (log !¿¾). The values are normalized at ² 0 max-TOWARD THE PHYSICAL BASIS OF COMPLEX SYSTEMS: DIELECTRIC ANALYSIS OF POROUS SILICON NANOCHANNELS IN THE ELECTRICAL DOUBLE LAYER LENGTH RANGE
<p>The results of the model are shown that the frequency-dependences ²<br> 0<br> (log(!¿¾))<br> in Fig.2, ²<br> 00(log(!¿¾)) in Fig.3 and ²<br> 00<br> (²<br> 0<br> )T in Fig.4, where ²<br> 0<br> , ²<br> 00<br> are the real and<br> imaginary part, respectively, from (7), having the ¸D<br> ¸ ratio as parameter.</p>
Dataset: Modeling the Dielectric Properties of Minerals from Crystals to Bulk Powders for Improved Interpretation of Asteroid Radar Observations
<p>Data (measurements of scattering parameters of samples) presented in: Hickson ,D.C., Boivin, A.L., Tsai, C.A., Daly, M.G. and Ghent, R.R. (2020) Modeling the Dielectric Properties of Minerals from Crystals to Bulk Powders for Improved Interpretation of Asteroid Radar Observations. <em>Journal of Geophysical Research: Planets, 125, </em>e2019JE006141. https://doi.org/10.1029/2019JE006141</p>
Erosion Ageing of Polymeric Insulation Materials: Dielectric Barrier Discharges on Wet Surfaces under Repetitive Voltage Pulses - Dataset
<p>This data set is the basis for the following paper which will be presented at the VDE Hochspannungstechnik 2024 conference from November 11 to 13 in Berlin. The data set contains the following content:</p> <ul> <li>Microscopic images of surface erosion on aged PTFE, PVC & PA 6.6 test objects</li> <li>The experimental setup for the ageing of these polymers</li> <li>Profilometer measurements of the polymer surfaces at different ageing times</li> </ul> <p>For further details please read the text file within the attached archive.</p> <p> </p> <p> </p> <p> </p>
Effect of Organic Cation Size on Structural, Thermochromic, Dielectric and Photoluminescence Properties of Two-Dimensional Lead Iodide Perovskites with Extremally Reduced Dielectric Confinement
<p>Dataset for scientific publication entitled Effect of Organic Cation Size on Structural, Thermochromic, Dielectric and Photoluminescence Properties of Two-Dimensional Lead Iodide Perovskites with Extremally Reduced Dielectric Confinement. </p> <p>This research was supported by the National Science Center (Narodowe Centrum Nauki) in Poland under project No. 2020/38/A/ST3/00214. JKZ acknowledges support from Academia Iuvenum, Wroclaw University of Science and Technology.</p>
Data supporting publication: All-dielectric structural coloration empowered by bound states in the continuum
<p>This repository includes the data corresponding to the figures shown in the journal article entitled</p> <p>"All-dielectric structural coloration empowered by bound states in the continuum"</p>
Raw and analyzed data for manuscript "Reduction of copper surface oxide using a sub-atmospheric dielectric barrier discharge plasma"
<p><strong>Abstract:</strong> Oxide layers on metal surfaces adversely affect processability and material properties in many industrial applications. Although several plasma-based approaches for deoxidation were investigated in the past, oftentimes they either work under conditions expensive to create or require long processing times. In this study, the deoxidation effect of a non-thermal dielectric barrier discharge plasma in an Ar/H<sub>2</sub> gas mixture at 100 hPa and 20 °C was investigated on copper surfaces with a native oxide layer. The chemical structure of surfaces before and after deoxidation was analyzed by X-ray photoelectron spectroscopy (XPS). The results revealed that ~98 % of the surface lattice oxide Cu<sub>2</sub>O was reduced to Cu after around 20 s of plasma treatment, whereas all oxygen contaminants were almost completely removed from Cu surface after around 50 s. Additionally, the kinetics of the reduction of surface oxide was studied and a Johnson-Mehl-Avrami-Erofeev-Kholmogorov kinetic model was proposed. The analysis of the morphology of surfaces was performed with atomic force microscopy (AFM), showing minor changes in the roughness after deoxidation. Moreover, optical emission spectroscopy (OES) showed atomic hydrogen radicals in the plasma phase, which likely causes deoxidation effect.</p>
Parameters of dielectric properties and emissivity estimated for Earth arid areas.
<p>Dataset gives the parameters estimated from passive microwave observations of the dielectric properties and emissivities of arid areas at 10 to 89 GHz.</p>
Arbitrary-shape dielectric particles interacting in the linearized Poisson-Boltzmann framework: an analytical treatment
<p>h_kmlsn.mat --</p> <p>the coefficients h<sub>kmls,n</sub> calculated for n_max<=50: one has h<sub>kmls,n</sub> = h<sub>kmlsn</sub>(k+1,m+1,l+1,s+1,n+1), where h<sub>kmlsn</sub> is a 5D array contained in h_kmlsn.mat (note that MATLAB indices must start from 1, while mathematically indices k, m, l, s, and n are >=0).</p> <p>b_nml_approx.m -- it approximates $b_{nml}(\tilde r,\tilde R)$ with a given parameter n_max;</p> <p>derivative_b_nml_approx.m -- it approximates the derivative of $b_{nml}(\tilde r,\tilde R)$ with respect to $\tilde r$ with a given parameter n_max;</p> <p>linear_system_two_bodies_direct_backslash.m -- a simple example of forming the global linear system (14) and solving it directly (without regularization) using the MATLAB "mldivide" (or backslash) operation</p> <p>GSK3beta.zip -- zipped directory with DelPhi files related to Sec. 5.1.3 (see ReadmeGSK3beta.txt);</p> <p>Arginine-Glutamate -- zipped directory with DelPhi files related to Sec. 5.1.4 (see ReadmeARGGlu.txt)</p>
Data from: Artificial intelligence enabled multi-purpose smart detection in active-matrix electrowetting-on-dielectric digital microfluidics
Open the record for dataset details and reuse information.
Dielectric spectra of thawed and frozen wet organic Arctic soils
<p>The submitted files contain laboratory data dielectric spectra measurements for six Arctic organic soils. The data are presented in the frequency dependences form of the refractive index and normalized attenuation coefficient obtained at various moistures and temperatures of soil samples.</p>
Data and code for "A Library of Late Transition Metal Alloy Dielectric Functions for Nanophotonic Applications"
<p>This data set contains dielectric functions for the ten binary alloys comprised of the late transition metals most commonly employed in plasmonics (Ag, Au, Cu, Pd, Pt).</p>
Transition from Light Diffusion to Localization in Three-Dimensional Amorphous Dielectric Networks near the Band Edge
<p>Data files and codes to generate all data considered in "Transition from Light Diffusion to Localization in Three-Dimensional Amorphous Dielectric Networks near the Band Edge", J. Haberko, L.S. Froufe-Perez, and F. Scheffold, Nature Communications 2020. DOI: 10.1038/s41467-020-18571-w</p>
Dielectric induced surface wave radiation loss
<p>Data and source code for the article "Dielectric Induced Surface Wave Radiation Loss" submitted to the Proceedings of the Royal Society A.</p>
Propagation of optical pulses through a periodic dielectric structure (Bragg Grating) designed as a delay line interferometer. Example of a designed fiber Bragg grating.
<p>Propagation of optical pulses through a periodic dielectric structure (Bragg Grating) designed as a delay line interferometer. <br> <br> A 9 cm fiber Bragg grating is designed (and fabricated) for this purpose.</p> <p>The top video shows the simulated propagation of a single optical pulse.</p> <p>The bottom video shows the simulated propagation of a sequence of optical pulses, with relative pi-phase shifts in the last pulse, showing both constructive and destructive interferences effect</p>
Fracture Dielectric Elastomers
<p>This dataset contains the experimental raw data from the mechanical and electro-mechanical testing of soft dielectric elastomers: unfilled PDMS and BaTiO3-filled PDMS. The data have not been filtered. </p> <p>Every specimen is tested under tensile loading until full rupture. <br>All specimens had a thickness of 3mm. The initial length between grips was set to 40mm. </p> <p>The files are named according to:<br>- the type of sample (Unfilled_PDMS/BaTiO3_Filled),<br>- the width of the sample (w30mm/w50mm),<br>- the length of the pre-cut (c0mm/c3mm/c5mm/c6mm/c9mm/c10mm/c12mm/c15mm/c20mm/c25mm),<br>- the voltage applied in the thickness direction during tensile deformation (0kV/4kV/8kV),<br>- and the number of the experiment up to the total number of repetitions under the same test conditions (R1/R2/R3 for filled samples and R1/R2 for unfilled samples).</p> <p>If this dataset is used for research or industrial purposes, please cite:<br>M.A. Moreno-Mateos, M. Mehnert, P. Steinmann. "Electro-mechanical actuation modulates fracture performance of soft dielectric elastomers", International Journal of Engineering Science, vol.195, 104008. (2024). https://doi.org/10.1016/j.ijengsci.2023.104008<br>Further explanation regarding the specimen preparation and experimental setup can be found in the aforementioned work.</p>
Quantum efficiency and vertical position of quantum emitters in hBN determined by Purcell effect in hybrid metal-dielectric planar photonic structures
<p>Data from the article "Quantum efficiency and vertical position of quantum emitters in hBN determined by Purcell effect in hybrid metal-dielectric planar photonic structures", <a href="https://pubs.acs.org/doi/10.1021/acsphotonics.4c01416">ACS Photonics, (2024)</a> - [arXiv:2407.20160]</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
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.