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174 results for “Inverted”
Seasonal evolution of basal conditions within Russell sector, West Greenland, inverted from satellite observations of surface flow
<p>An annual set of model-inferred basal and surface properties of ice flow at Russell Gletcher sector in Western Greenland with half-month temporal resolution. Derived using the Elmer/Ice ice-flow model by inversion of satellite-observed ice surface velocity (10.5281/zenodo.5535532). The details on the data creatoin can be found in 10.5194/tc-15-5675-2021 .</p> <p>Dataset contains 24 independent NetCDF files (one per 2-weeks time step) with:<br> * alpha - inverted be model basal friction coefficient in log10 (log10(MPa m-1 a)<br> * base - basal topography altitude (m)<br> * lithk - ice thickness (m)<br> * orog - surface altitude (m)<br> * strbasemag - magnitude of basal friction tb (MPa)<br> * xvelbase, yvelbase, zvelbase - 3D basal velocity (m/yr)<br> * xvelmean, yvelmean - vertically average mean horizontal velocity (m/yr)<br> * xvelsurf, yvelsurf, zvelsurf - 3D surface velocity (m/yr)<br> * n - effective pressure (MPa)</p> <p>The additional WinterMeanState NetCDF file (inversion from the mean velocity of january, Febriary, Mars) contains the same set of variables (except the effective pressure), and in addition contains the <em>As</em> Weertman sliding coeffitient.</p> <p>The results have been interpolated from the native unstructured model grid to the regular grid used for the observed velocity (10.5281/zenodo.5535624).</p>
Invert species counts and density along transects on the high marsh along Rowley River tidal creeks associated with long term fertilization experiments, Rowley, MA.
At PIE, mummichog (Fundulus heteroclitus) use the spring-cycle high tides to access the flooded high marsh platform and consume invertebrate prey. Invertebrate surveys were conducted before and after spring tides that flooded the high marsh area to determine the effect of mummichog predation that occurs on the high marsh during the flood events and to assess the impact of low marsh geomorphology on top-down control by mummichog. These data were included in part of the study "Cross-habitat access modifies the ‘trophic relay’ in New England saltmarsh ecosystems” (Lesser et al. 2021) as well as a part of a NEU Three Seas Master's thesis.
Dataset for Local Communication in Small-Scale PV Systems: Study on Inverter - Smart Meter PLC Communication
<p>This study investigates communication technologies and protocols for small-scale photovoltaic (PV) systems, focusing on the interaction between inverters and smart meters. The research evaluates the performance of Power Line Communication (PLC) technologies, comparing both narrowband (NB-PLC) and broadband (BB-PLC) options. The analysis identifies MODBUS protocol limitations and highlights the benefits of advanced protocols like DLMS/COSEM and DNP3 for enhanced efficiency and reliability. Field tests demonstrate the viability of PLC for residential PV systems, with narrowband PLC showing better performance over longer distances. Future work aims to optimize PLC communication, digitize ripple control signals, and develop a Multi-Radio and Cable Access Technology (Multi-RCAT) module. This module will integrate various communication technologies, enabling flexible and redundant local communication behind utility sub-meters. These advancements will support real-time production and consumption control, contributing to the efficient and sustainable operation of decentralized energy systems.</p>
Illustration of an inverted growth process
<p>Illustration of a basic inverted growth process. The semiconductor layers of interest are first grown on a semicondutor substrate. Then the full structure is attached to another substrate that acts as holder (glass, for example) and then the original substrate is removed.</p> <p>The video was created with Blender 2.79b. I attach the Blender file so you can create other views, change the colors, camera movements, etc. </p>
Data for the paper "Construction of an invertible mapping to boundary conforming coordinates for arbitrarily shaped toroidal domains."
<p>Data and scripts for the paper "Construction of an invertible mapping to boundary conforming coordinates for arbitrarily shaped toroidal domains."</p> <p>Presented at the "JOINT VARENNA - LAUSANNE INTERNATIONAL WORKSHOP: THEORY OF FUSION PLASMAS, 2024" and published in PPCF.</p>
Model output from Inverting ice surface elevation and velocity for bed topography and slipperiness beneath Thwaites Glacier
<p>This model output dataset accompanies the draft paper 'Inverting ice surface elevation and velocity for bed topography and slipperiness beneath Thwaites Glacier'.</p>
Annotation of inverted repeats displaying features of pble STIR or IR in the hg38 genome model
<p>Annotation of inverted repeats displaying features of pble STIR or IR in the hg38 genome model. The annotation of <em>pble</em>-like inner inverted repeats was done using Palindrome (EMBOSS package). The output file was then filtered using pal2gff (https://github.com/Leelouh/pal2gff/blob/main/pal2gff.py), using as parameters a repeat size between 5 and 15 nucleotides, a spacer between pairs of inverted repeats (IRs) of 2 to 10 nucleotides, and a number of mismatches within repeats ranging from 0 to 1. These parameters were chosen taking into account those of the inner IRs found at ends of invertebrate pbles.</p>
Buried Interface Engineering Enables Efficient and 1,960-hour Isos-L-2i Stable Inverted Perovskite Solar Cells
<p>High-performance perovskite solar cells (PSCs) typically require interfacial passivation, yet this is challenging for the buried interface, owing to the dissolution of passivation agents during the deposition of perovskites. Here, we overcome this limitation with in-situ buried interface passivation – achieved via directly adding a cyanoacrylic acid-based molecular additive, namely BT-T, into the perovskite precursor solution. Classical and ab-initio molecular dynamics simulations reveal that BT-T spontaneously may self-assemble at the buried interface during the formation of the perovskite layer on a nickel oxide hole transporting layer. The preferential buried interface passivation results in facilitated hole transfer and suppressed charge recombination. In addition, residual BT-T molecules in the perovskite layer enhance its stability and homogeneity. We report a power-conversion efficiency (PCE) of 23.48% for 1.0 cm2 inverted-structure PSCs. The encapsulated PSC retains 95.4% of its initial PCE following 1,960-hour maximum power point tracking under continuous light illumination at 65°C (i.e., ISOS-L-2I protocol). Our demonstration of operating-stable PSCs under accelerated ageing conditions represents a step closer to the commercialization of this emerging technology.</p>
EBSD data (with patterns) for indexing of contrast inverted patterns
<p>Data needed to reproduce results from paper:</p> <p>Grzegorz Cios, Aimo Winkelmann, Gert Nolze, Tomasz Tokarski, Benedykt R. Jany, Piotr Bała,<br>EBSD and TKD analyses using inverted contrast Kikuchi diffraction patterns and alternative measurement geometries,<br>Ultramicroscopy, 2024, 114055, ISSN 0304-3991,<br>https://doi.org/10.1016/j.ultramic.2024.114055.<br>(https://www.sciencedirect.com/science/article/pii/S0304399124001347)</p> <p><br>Abstract: Electron backscatter diffraction (EBSD) patterns can exhibit Kikuchi bands with inverted contrast due to anomalous absorption. This can be observed, for example, on samples with nanoscale topography, in case of a low tilt backscattering geometry, or for transmission Kikuchi diffraction (TKD) on thicker samples. Three examples are discussed where contrast-inverted physics-based simulated master patterns have been applied to find the correct crystal orientation. As first EBSD example, self-assembled gold nanostructures made of Au fcc and Au hcp phases on single-crystal germanium were investigated. Gold covered about 12% of the mapped area, with only two thirds being successfully interpreted using standard Hough-based indexing. The remaining third was solved by brute force indexing using a contrast-inverted master pattern. The second EBSD example deals with maps collected at a non-tilted surface instead of the commonly used 70° tilted one. As TKD example, a jet-polished foil made of duplex stainless steel 2205 was examined. The thin part close to the hole edge producing normal-contrast patterns were standard indexed. The areas of the foil that become thicker with increasing distance from the edge of the hole produce contrast-inverted patterns. They covered three times the evaluable area and were successfully processed using the contrast-inverted master pattern. In the last example, inverted patterns collected at a non-tiled sample were mathematically inverted to normal contrast, and Hough/Radon-based indexing was successfully applied.<br>Keywords: EBSD; TKD; Contrast inversion; Topography; Kikuchi diffraction</p>
Comprehensive Dataset for Fault Detection and Diagnosis in Inverter-Driven PMSM Systems
<p><span>#</span><span> New in Version 3.0</span> The dataset has been reorganized for improved accessibility and clarity:</p> <ul> <li>/code: Contains all source code (C++ and Python) for data acquisition and processing</li> <li>/metadata: Contains sensor specifications and fault definitions</li> <li>/processed_data: Contains the processed and derived features</li> <li>/raw_data: Contains: <ul> <li>Raw sensor measurements</li> <li>Fault scenario data</li> <li>Normal operation data</li> <li>Thermistor calibration data</li> </ul> </li> <li>/visualizations: Contains data visualization outputs</li> </ul> <p><br>This dataset contains multi-sensor measurements from an inverter-driven PMSM system under various fault conditions. It includes: </p> <ul> <li>10,892 samples across 9 operational conditions</li> <li>8 raw sensor measurements</li> <li>15 derived features</li> <li>Data collected at 10 Hz sampling rate</li> <li> Fault scenarios including open-circuit, short-circuit, and overheating conditions</li> </ul> <p> Keywords:</p> <ul> <li>PMSM</li> <li>Fault Detection</li> <li>Inverter Faults</li> <li>Motor Drive Systems</li> <li>Experimental Data</li> <li>Machine Learning</li> </ul>
Seismic noise interferometry and Distributed Acoustic Sensing (DAS): Inverting for the firn layer S-velocity structure on Rutford Ice Stream, Antarctica
<p>This dataset contains files including continuous DAS and geophone data and a refracted P wave travel time data collected on Rutford Ice Stream, Antarctica. The seismic data is used to perform seismic noise interferometry. The travel time data is used to perform refraction inversion to get the P wave velocity profile.</p> <p><br> 1. 7 hours of continuous DAS data (100 Hz sampling): 2020-01-14T00:00:19.598000Zoffset_****.mseed, with offset referring to the distance from the DAS channel to the interrogator.</p> <p>2. Corresponding 7 hours of vertical component continuous geophone (A000, located at DAS channel offset 570 m) data.</p> <p>3. Refraction P wave travel time from a geophone array refraction survey.</p>
Figure 10. Otsu segmentation of the real (left) and the impossible (inverted) figure (right)
<p>This regularity of cognition is about the geometry of the internal representation of the<br> external world, which somehow most often is approximating the Euclidean space according to L.M.<br> Vekker (1976). In his theory of the Gestalt in perception and thinking, Vekker postulated that<br> sensations, perceptions and imagination are in a constant process of unfolding to match and take the<br> exact places of the physical objects in the external environment. The geometry of the internal<br> representation of the world is abstract and experiential at the same time. The experiential aspect of<br> the process of immediate cognition can be seen by viewing figure 9. Figure 9 right is, at first glance,<br> a quite convincing example of stairs similar to the stairs on the left. Even the context (the cat on the<br> ceiling) is noticed on a second scan. The inverted stairs are more likely to remind us of Escher’s<br> works than, for example, the normally positioned ones. This effect supports the idea of the semantic<br> depth of spatial learning, relating the experience of art to perceiving of Gestalts.</p>
Text-fig. 4. Platanaceae 1–3. Macginitiea gracilis (LESQUEREUX) J. WOLFE et WEHR leaves and associated reproductive structures 1. Holotype of Aralia gracilis LESQUEREUX from Bridger Pass, Wyoming, USNM 330. 2. Specimen showing the typical configuration of five lobes, Killpecker Creek flora, Wyoming. UF 18126-13242. 3. Silicified M. gracilis leaf from Almont, North Dakota; arrow indicates adjacent Macginicarpa infructescence, UF 15722-29202a. 4. Macginicarpa infructescence from Almont, UF15722-35493. 5. Platananthus sp., Almont, UF 15722-62019. 6. Macginicarpa glabra MANCHESTER infructescence, enlarged from fig. 3, UF 15722-29202b. Specimens in figs 3-6 collected and donated by John Curtis. Scales = 1 cm. Images 3–6 light-dark inverted. in Revisions To Roland Brown'S North American Paleocene Flora
Text-fig. 4. Platanaceae 1–3. Macginitiea gracilis (LESQUEREUX) J. WOLFE et WEHR leaves and associated reproductive structures 1. Holotype of Aralia gracilis LESQUEREUX from Bridger Pass, Wyoming, USNM 330. 2. Specimen showing the typical configuration of five lobes, Killpecker Creek flora, Wyoming. UF 18126-13242. 3. Silicified M. gracilis leaf from Almont, North Dakota; arrow indicates adjacent Macginicarpa infructescence, UF 15722-29202a. 4. Macginicarpa infructescence from Almont, UF15722-35493. 5. Platananthus sp., Almont, UF 15722-62019. 6. Macginicarpa glabra MANCHESTER infructescence, enlarged from fig. 3, UF 15722-29202b. Specimens in figs 3-6 collected and donated by John Curtis. Scales = 1 cm. Images 3–6 light-dark inverted.
Text-fig. 3. 1, 2. Ensete goldianum (LESQUEREUX) comb. nov, Holotype, USNM 494, Golden Colorado. 1. Numerous seeds on a slab. 2. Detail of seed molds and casts. 3-5 "Sagittaria" megasperma R. W. BROWN. 3. Infructescence head. USNM 167488, lectotype selected by Watt 1971. 4. Isolated fruit showing veins of wing, and longitudinally striate central body and single style, USNM 313282, 5. Additional isolated fruit, USNM 313283. Images 4, 5 light-dark inverted. Scale = 1 cm. in Revisions To Roland Brown'S North American Paleocene Flora
Text-fig. 3. 1, 2. Ensete goldianum (LESQUEREUX) comb. nov, Holotype, USNM 494, Golden Colorado. 1. Numerous seeds on a slab. 2. Detail of seed molds and casts. 3-5 "Sagittaria" megasperma R. W. BROWN. 3. Infructescence head. USNM 167488, lectotype selected by Watt 1971. 4. Isolated fruit showing veins of wing, and longitudinally striate central body and single style, USNM 313282, 5. Additional isolated fruit, USNM 313283. Images 4, 5 light-dark inverted. Scale = 1 cm.
Text-fig. 6. Fossil endocasts of large mammals from Gánovce-Hrádok Neanderthal site. a) Equidae gen. et sp. indet. (NM-Rv 21008); b) Equidae gen. et sp. indet. (NM-Rv 21007); c) Equidae gen. et sp. indet. (NM-Rv 21006); d) Bovidae gen. et sp. indet. (NM-Rv 21009); e) Ursus ex gr. spelaeus (NM R-604); f) Ursus ex gr. spelaeus (NM-Rv 21010); lateral and dorsal (except for f: ventral) views; lateral view for d and f are inverted. in Revised Floral And Faunal Assemblages From Late Pleistocene Deposits Of The Gánovce-Hrádok Neanderthal Site -Biostratigraphic And Palaeoecological Implications
Text-fig. 6. Fossil endocasts of large mammals from Gánovce-Hrádok Neanderthal site. a) Equidae gen. et sp. indet. (NM-Rv 21008); b) Equidae gen. et sp. indet. (NM-Rv 21007); c) Equidae gen. et sp. indet. (NM-Rv 21006); d) Bovidae gen. et sp. indet. (NM-Rv 21009); e) Ursus ex gr. spelaeus (NM R-604); f) Ursus ex gr. spelaeus (NM-Rv 21010); lateral and dorsal (except for f: ventral) views; lateral view for d and f are inverted.
Spatial distribution of Mesozoic deposits and their temperature ranges within the Weser-Wiehengebirge Syncline of the inverted Lower Saxony Basin, Minden area, Germany
<p>This repository contains the supplementary material for the publication "Spatial distribution of Mesozoic deposits and their temperature ranges within the Weser-Wiehengebirge Syncline of the inverted Lower Saxony Basin, Minden area, Germany" by Alexander Jüstel, Olga Knaub, Frank Strozyk, Gregor Bussmann, Florian Wellmann, Peter Kukla. <br> </p>
Performance analysis & optimization of inverted inorganic CsGeI3 perovskite cells with carbon/copper charge transport materials using SCAPS‑1D
<p>Hybrid perovskite solar cells (PSC) have achieved efficiencies (PCE) of more than 25%. However, the organic compound is causing structural degradation due to heat and moisture. This has led to the exploration of inorganic perovskites. Inorganic-PSC such as cesium has seen a breakthrough by achieving highly stable PSC with PCE exceeding 15%. In this work, the inorganic non-toxic PSC of cesium germanium tri-iodide (CsGeI<sub>3</sub>) is numerically modeled in SCAPS-1D with two carbon-based and two copper-based charge transport layers(CTL). This study introduces in-depth modelling and analysis of CsGeI<sub>3</sub> through continuity and Poisson equations. Cu-CTL are selected to increase the electric conductivity of the cell, while carbon-CTL is used to increase the thermal conductivity. Four structures are designed and presented. A systematic approach is adopted to obtain the optimized design parameters for maximum performance. From the results it is observed that the C<sub>60</sub>/CsGeI<sub>3</sub>/CuSCN structure has the highest performance, with open-circuit voltage of 1.0169V, short-circuit current of 19.653 mA/Cm<sup>2</sup>, fill factor of 88.13% and PCE of 17.61%. Moreover, the effect of quantum efficiency, electric field, interface recombination, interface defects, layer thickness, defect density, doping concentration, working temperature and reflection coating on the cell performance are studied in detail.</p>
Dataset for "Stabilizing the inverted phase of a WSe2/BLG/WSe2 heterostructure via hydrostatic pressure"
<p>Measurement dataset for the article "Stabilizing the inverted phase of a WSe2/BLG/WSe2 heterostructure via hydrostatic pressure".</p>
Pretrained models and simulated data for MICCAI paper Unsupervised Domain Transfer with Conditional Invertible Neural Networks
<p>Simulated data and the pretrained models used for the publication "Unsupervised Domain Transfer with Conditional Invertible Neural Networks", see https://link.springer.com/chapter/10.1007/978-3-031-43907-0_73 published at MICCAI 2023.</p>
Performance analysis & optimization of inverted inorganic CsGeI3 perovskite cells with carbon/copper charge transport materials using SCAPS‑1D
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