cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.35097/1474
title: Failing Parametrizations: Julia and Matlab Code

description: This code contains all implementations to produce the results for the following manuscript: A. K. Stoychev, U. J. Römer, "Failing Parametrizations: What can go Wrong when Approximating Spectral Submanifolds", Nonlinear Dynamics 111, 5963-6000 (2023), doi: 10.1007/s11071-022-08154-3 Refer to the file "Code_Failing_Parametrizations_final.zip" for all files and a readme. A preliminary version of the code that was prepared for the preprint with the same title is also available.
description: Seven systems are treated in the manuscript sections 3.1 - 3.8. The simulations for sections 3.1 - 3.7 are implemented in Julia (available at https://julialang.org/), the simulation for section 3.8 uses a modification of the Matlab toolbox SSMTool-2.1 (available at https://github.com/haller-group/SSMTool-2.1). To execute the Julia code, setup Julia and a suitable editor (e.g. VSCode, https://www.julia-vscode.org/); the implementation was performed in Julia version 1.7.2. Before any of the .jl-files can be executed for the first time, the necessary packages must be downloaded. For this, press "]" (without quotation marks) in the Julia REPL to enter the package manager, then execute the following commands: add LinearAlgebra add Combinatorics add SparseArrays add DifferentialEquations add Optim add JuMP add Ipopt add NLsolve add Plots add PyPlot add PlotlyJS add TaylorSeries add LaTeXStrings To execute the Matlab code, install Matlab (commercial license required); the implementation was performed in Matlab version R2021b. At the beginning of every Matlab session (after you open Matlab), navigate to the subfolder "External\SSMTool-2.1-master" and run the script "install.m". To run the original system by Jain and Haller (2021), navigate to the subfolder "External\SSMTool-2.1-master\examples\vonKarmanBeam" and run the Workbook "vonKarmanBeamWorkbook.mlx". (Note that none of the other examples contained in SSMTool-2.1 (available at https://github.com/haller-group/SSMTool-2.1) is included in this reference of the code.) To run the modified system as discussed in our manuscript (increased forcing amplitude, modified coefficients), navigate to the subfolder "External\SSMTool-2.1-master\examples\vonKarmanBeam_Modified" and run the Workbook "vonKarmanBeamWorkbook_Modified.mlx". (Note that the runtime may be several hours due to the reference result calculated via continuation with coco.) The modified coefficients are stored in the file \External\SSMTool-2.1-master\examples\vonKarmanBeam_Modified\Alternative_Parametrization\Coefficients\SSM_Coeffs_von_Karman_10EL_Modified.mat which is loaded by the simulation script "vonKarmanBeamWorkbook_Modified.mlx".
DOI: 10.35097/1157
title: Flow field in drying poly(vinyl acetate) methanol film partially covered and subject to Marangoni convection

description: Image stacks from camera A and B.
DOI: 10.35097/1150
title: Flow statistics of spatially developing turbulent boundary layers with localized application of three different control techniques aimed at reduction of skin friction drag.

description: Simulations of spatially developing turbulent boundary layers with localized application of three different control techniques aimed at reduction of skin friction drag. Considered control techniques are uniform blowing, body-force damping of wall-normal velocity component and opposition control. Stroh, A., Hasegawa, Y., Schlatter, P., & Frohnapfel, B. (2016) "Global effect of local skin friction drag reduction in spatially developing turbulent boundary layer." Journal of Fluid Mechanics, 805, 303-321, doi: 10.1017/jfm.2016.545 https://doi.org/10.1017/jfm.2016.545 Key Data - pseudo-spectral solver SIMSON External Link - streamwise and spanwise periodicity of simulation domain - weak random forcing for turbulence tripping - Grid size Nx×Ny×Nz=3072×301×256 - Domain size Lx×Ly×Lz=3000×120×100 (based on initial displacement thickness) - uncontrolled flow: Reθ=400-2500, Reτ=170-850 - three control types: uniform blowing with 0.5%U∞, damping of wall-normal velocity component by imposition of body force and opposition control scheme - control region location: x=186-386 Please provide a reference to the article above when using this data. Please direct any questions to Alexander Stroh at alexander.stroh@kit.edu
DOI: 10.35097/1174
title: Frequent Observations from a Battery System with Subunits

description: Please read and refer to our data descriptor: G. Steinbuß, B. Rzepka, S. Bischof, T. Blank and K. Böhm, "FOBSS: Monitoring Data from a Modular Battery System", in the Proceedings of the Tenth ACM International Conference on Future Energy System, 2019
DOI: 10.35097/1524
title: Friction data by UHV Microtribometry

description: During sliding of metallic surfaces, the near surfaces undergo significant changes in terms of topography, composition and microstructure. Since friction and wear behavior of the materials are strongly influenced by sub-surface deformations, it is fundamental to investigate these effects. Therefore, the present study aims towards a better understanding of the behavior of friction depending on well-defined initial microstructures. By performing sliding experiments on Au-Ni multilayer samples under ultrahigh vacuum (UHV) conditions, we observe that the individual layer thickness of multilayer systems has a strong influence on friction behavior due to the transition in the dominant deformation mechanism near the surface. The experiments reported here provide a new route for lowering the friction force of metallic material systems in dry contact by providing more stable microstructures and alloy formation. Through ultrafine grains present in the alloy formed by mechanical mixing the number of grain boundaries strongly increases and hence, grain boundary-mediated deformation results in the low friction coefficient.
description: Friction data aquired by the homebuilt UHV microtribometer for a ruby sphere sliding against different Au-Ni multilayer samples. The data includes normal load, friction force and COF as a function of the mulitlayer thickness.
DOI: 10.35097/1483
title: Fuel Cells and Hydrogen Joint Undertaking (FCH JU)

description: Work package five of the PRESLHY project focusses on the combustion phenomena of liquid hydrogen (LH 2 ). The experimental programme was designed to provide insight into a number of credible and poorly understood LH 2 combustion scenarios. One such scenario is the effect of congestion or confinement on an ignited hydrogen cloud stemming from a release of LH 2 , potentially leading to deflagration to detonation transition (DDT). This report summarises the large-scale experiments carried out at the HSE Science and Research Centre in Buxton investigating the effect of differing levels of congestion and confinement on the combustion properties of a hydrogen cloud developing from a release of LH2. Various combustion parameters were measured, including; the overpressure, heat flux, and noise. Monitoring of ambient and release conditions were also made to allow for a thorough analysis of the results. A total of 23 ignited trials were completed and involved releasing LH2 using the same initial conditions as in the rainout experiments of work package 3, meaning that the dispersion patterns should remain similar. The congestion and confinement was created by a configurable steel structure placed directly in the path of the release. Two congestion levels, confinement and pool experiments were planned, however due to the safe noise level being reached, only the congestion experiments were completed. To compensate for this, multiple repeats and experiments with a wide variety of source conditions were conducted. From the results, it is clear that higher levels of volumetric congestion increases the measured overpressures in releases with the same initial conditions. The results also show that an increasing hydrogen inventory, either through an increased release pressure or larger nozzle, can result in a larger event upon ignition. However, the mixing of the jet also plays a part; some releases through the largest release orifice diameter showed lower overpressures potentially due to the hydrogen cloud being too rich. It was observed that the ambient conditions, in particular the wind speed and direction, were a significant factor in the outcome of each ignition. This was particularly prominent in trials 21 to 23.
description: file consists of data from following sensors, obtained during experiments: • blast pressure sensor • noise sensor • heat flux sensor • pipework thermocouples • pressure sensor • mass flow sensor • near-field weather station • far-field wind sensor • far-field humidity sensor and videos getted during experiments
DOI: 10.35097/1481
title: Fuel Cells and Hydrogen Joint Undertaking (FCH JU); Summary of experiment series E3.5

description: This report summarises the ‘rainout’ experiments undertaken by HSE, which was an experimental investigation into the release characteristics and dispersion of elevated spills of LH 2 , including the propensity for rainout to form. A series of 25 LH 2 releases from a tanker delivery hose at elevated positions were carried out through 6 mm, 12 mm and 25.4 mm nozzles with an indicated tanker pressure of 1 or 5 barg. The dispersion from these releases was measured using hydrogen concentration and temperature measurements. Other attributes such as pressure, mass flow rate and temperature were measured in the pipework to provide an understanding of the release characteristics. The experiments were carried out at the LH 2 release facility, which was located on a 32 m diameter concrete pad at the Frith Valley site at the HSE Science and Research Centre in Buxton. While no evidence of rainout was found during these releases, evidence of rainout immediately after a release was observed. Further to this, condensed components of air formed around the release point and on impingements. Pools were only formed with low, vertically downward releases. These pools potentially comprised of LH 2 , condensed components of air, or a mixture of the two. It is possible that with different initial conditions or obstruction geometries, rainout and pool formation could still occur. The phase of hydrogen at the release point was indicated by the pipework measurements. For the majority of the trials a two-phase flow developed within the release pipework. This has been attributed predominantly to the heat transfer into the fluid in the final 3 m of pipework, which contained the instrumentation and therefore was not vacuum insulated. The mass flow rate for each source configuration was measured and is reported including the methodology. The development and dispersion of the gaseous H 2 cloud that forms from a release of LH 2 was captured by the instrumentation and video footage. The jet is typically momentum dominated for the initial section, which ranges between 1.5 m and 6 m depending on the release pressure and nozzle size, but then becomes extremely dependent on the wind, including transient localised gusts. The video and data output of these experiments will be provided for model validation, which is due to take place in upcoming stages of the PRESLHY project.
description: exel file consists of data from following sensors, obtained during experiments: • near‐field thermocouples • far‐field thermocouples • pressure sensor • tank Pressure sensor • mass flow sensor • H2 concentration sensors • H2 PPM • O2 depletion • near‐field weather station PCE • far‐field wind sensor • far‐field humidity sensor and videos getted during experiments. Report
DOI: 10.35097/1235
title: Full-Field XANES tomography data of a Cu-SSZ-13 washcoated monolith: NH3 @ 200°C dataset

description: Die Daten wurden an der microXAS-Beamline an der Swiss Light Source (SLS, Villigen, Schweiz) im Juni 2019 aufgezeichnet. Gegenstand des Experiments war ein Zeolith-Katalysator auf Kupferbasis, der als beschichteter Monolith hergestellt wurde. Eine detaillierte Beschreibung der Daten ist in der Readme-Datei dieses Datensatzes und in der entsprechenden Publikation zu finden.
description: The data was recorded at the microXAS beamline at the Swiss Light Source (SLS, Villigen, Switzerland) in June 2019. Subject of the experiment was a copper-based zeolite catalyst prepared as a washcoated monolith. A detailed description about the data can be found in the readme of this data set and in the corresponding publication.
description: The measurement mode was full-field and the data available here contains the recorded 2D projections, consisting of absorption contrast images. The data is saved in TIFF files each corresponding to one specific energy point and rotation angle. For a description of exact energy points and rotational angles used, see the corresponding publication. This dataset is one reference measurement with 1000 ppm NH3 in He at 200 °C.
DOI: 10.35097/1231
title: Full-Field XANES tomography data of a Cu-SSZ-13 washcoated monolith: SCR @ 200°C dataset

description: Die Daten wurden an der microXAS-Beamline an der Swiss Light Source (SLS, Villigen, Schweiz) im Juni 2019 aufgezeichnet. Gegenstand des Experiments war ein Zeolith-Katalysator auf Kupferbasis, der als beschichteter Monolith hergestellt wurde. Eine detaillierte Beschreibung der Daten ist in der Readme-Datei dieses Datensatzes und in der entsprechenden Publikation zu finden.
description: The data was recorded at the microXAS beamline at the Swiss Light Source (SLS, Villigen, Switzerland) in June 2019. Subject of the experiment was a copper-based zeolite catalyst prepared as a washcoated monolith. A detailed description about the data can be found in the readme of this data set and in the corresponding publication.
description: The measurement mode was full-field and the data available here contains the recorded 2D projections, consisting of absorption contrast images. The data is saved in TIFF files each corresponding to one specific energy point and rotation angle. For a description of exact energy points and rotational angles used, see the corresponding publication. This dataset is measured under SCR conditions (1000 ppm NO, 1000 ppm NH3, 7.8% O2 in He as balance gas, flow rate 50 ml/min) at 200°C.
DOI: 10.35097/1236
title: Full-Field XANES tomography data of a Cu-SSZ-13 washcoated monolith: NO + O2 @ 200°C dataset

description: Die Daten wurden an der microXAS-Beamline an der Swiss Light Source (SLS, Villigen, Schweiz) im Juni 2019 aufgezeichnet. Gegenstand des Experiments war ein Zeolith-Katalysator auf Kupferbasis, der als beschichteter Monolith hergestellt wurde. Eine detaillierte Beschreibung der Daten ist in der Readme-Datei dieses Datensatzes und in der entsprechenden Publikation zu finden.
description: The data was recorded at the microXAS beamline at the Swiss Light Source (SLS, Villigen, Switzerland) in June 2019. Subject of the experiment was a copper-based zeolite catalyst prepared as a washcoated monolith. A detailed description about the data can be found in the readme of this data set and in the corresponding publication.
description: The measurement mode was full-field and the data available here contains the recorded 2D projections, consisting of absorption contrast images. The data is saved in TIFF files each corresponding to one specific energy point and rotation angle. For a description of exact energy points and rotational angles used, see the corresponding publication. This dataset is one reference measurement with 1000 ppm NO + O2 in He at 200 °C.
DOI: 10.35097/1232
title: Full-Field XANES tomography data of a Cu-SSZ-13 washcoated monolith: SCR @ 300°C dataset

description: Die Daten wurden an der microXAS-Beamline an der Swiss Light Source (SLS, Villigen, Schweiz) im Juni 2019 aufgezeichnet. Gegenstand des Experiments war ein Zeolith-Katalysator auf Kupferbasis, der als beschichteter Monolith hergestellt wurde. Eine detaillierte Beschreibung der Daten ist in der Readme-Datei dieses Datensatzes und in der entsprechenden Publikation zu finden.
description: The data was recorded at the microXAS beamline at the Swiss Light Source (SLS, Villigen, Switzerland) in June 2019. Subject of the experiment was a copper-based zeolite catalyst prepared as a washcoated monolith. A detailed description about the data can be found in the readme of this data set and in the corresponding publication.
description: The measurement mode was full-field and the data available here contains the recorded 2D projections, consisting of absorption contrast images. The data is saved in TIFF files each corresponding to one specific energy point and rotation angle. For a description of exact energy points and rotational angles used, see the corresponding publication. This dataset is measured under SCR conditions (1000 ppm NO, 1000 ppm NH3, 7.8% O2 in He as balance gas, flow rate 50 ml/min) at 300°C.
DOI: 10.35097/1233
title: Full-Field XANES tomography data of a Cu-SSZ-13 washcoated monolith: SCR @ 350°C dataset

description: Die Daten wurden an der microXAS-Beamline an der Swiss Light Source (SLS, Villigen, Schweiz) im Juni 2019 aufgezeichnet. Gegenstand des Experiments war ein Zeolith-Katalysator auf Kupferbasis, der als beschichteter Monolith hergestellt wurde. Eine detaillierte Beschreibung der Daten ist in der Readme-Datei dieses Datensatzes und in der entsprechenden Publikation zu finden.
description: The data was recorded at the microXAS beamline at the Swiss Light Source (SLS, Villigen, Switzerland) in June 2019. Subject of the experiment was a copper-based zeolite catalyst prepared as a washcoated monolith. A detailed description about the data can be found in the readme of this data set and in the corresponding publication.
description: The measurement mode was full-field and the data available here contains the recorded 2D projections, consisting of absorption contrast images. The data is saved in TIFF files each corresponding to one specific energy point and rotation angle. For a description of exact energy points and rotational angles used, see the corresponding publication. This dataset is measured under SCR conditions (1000 ppm NO, 1000 ppm NH3, 7.8% O2 in He as balance gas, flow rate 50 ml/min) at 350°C.
DOI: 10.35097/1234
title: Full-Field XANES tomography data of a Cu-SSZ-13 washcoated monolith: SCR @ 400°C dataset

description: Die Daten wurden an der microXAS-Beamline an der Swiss Light Source (SLS, Villigen, Schweiz) im Juni 2019 aufgezeichnet. Gegenstand des Experiments war ein Zeolith-Katalysator auf Kupferbasis, der als beschichteter Monolith hergestellt wurde. Eine detaillierte Beschreibung der Daten ist in der Readme-Datei dieses Datensatzes und in der entsprechenden Publikation zu finden.
description: The data was recorded at the microXAS beamline at the Swiss Light Source (SLS, Villigen, Switzerland) in June 2019. Subject of the experiment was a copper-based zeolite catalyst prepared as a washcoated monolith. A detailed description about the data can be found in the readme of this data set and in the corresponding publication.
description: The measurement mode was full-field and the data available here contains the recorded 2D projections, consisting of absorption contrast images. The data is saved in TIFF files each corresponding to one specific energy point and rotation angle. For a description of exact energy points and rotational angles used, see the corresponding publication. This dataset is measured under SCR conditions (1000 ppm NO, 1000 ppm NH3, 7.8% O2 in He as balance gas, flow rate 50 ml/min) at 400°C.
DOI: 10.35097/1137
title: GLORIA Chemistry Mode temperature and trace gas retrievals from the POLSTRACC/GW-LCYCLEII/GWEX/SALSA campaigns 2015/2016

description: The Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) was operated on board the German High Altitude and Long Range Research Aircraft (HALO) during the PGS (POLSTRACC/GW-LCYCLE/SALSA) aircraft campaigns in the Arctic winter 2015/2016. Research flights were conducted from 17 December 2015 until 18 March 2016 within 25–87°N, 80°W–30°E. From the GLORIA infrared limb-emission measurements, two-dimensional cross sections of temperature, HNO3, O3, ClONO2, H2O and CFC-12 are retrieved. During 15 scientific flights of the PGS campaigns the GLORIA instrument measured more than 15000 atmospheric profiles at high spectral resolution. Dependent on flight altitude and tropospheric cloud cover, the profiles retrieved from the measurements typically range between 5 and 14km, and vertical resolutions between 400 and 1000m are achieved. The estimated total (random and systematic) 1σ errors are in the range of 1 to 2K for temperature and 10% to 20% relative error for the discussed trace gases.
description: For a detailed description, discussion and validation of the data, please read: Johansson, S., Woiwode, W., Höpfner, M., Friedl-Vallon, F., Kleinert, A., Kretschmer, E., Latzko, T., Orphal, J., Preusse, P., Ungermann, J., Santee, M. L., Jurkat-Witschas, T., Marsing, A., Voigt, C., Giez, A., Krämer, M., Rolf, C., Zahn, A., Engel, A., Sinnhuber, B.-M., and Oelhaf, H.: Airborne limb-imaging measurements of temperature, HNO3, O3, ClONO2, H2O and CFC-12 during the Arctic winter 2015/2016: characterization, in situ validation and comparison to Aura/MLS, Atmos. Meas. Tech., 11, 4737-4756, https://doi.org/10.5194/amt-11-4737-2018, 2018.
DOI: 10.35097/1244
title: GLORIA data for: Pollution trace gas distributions and their transport in the Asian monsoon upper troposphere and lowermost stratosphere during the StratoClim campaign 2017

description: We present the first high resolution measurements of pollutant trace gases in the Asian Summer Monsoon Upper Troposphere and Lowermost Stratosphere (UTLS) from the Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) during the StratoClim (Stratospheric and upper tropospheric processes for better climate predictions) campaign based in Kathamandu, Nepal, 2017. Measurements of peroxyacetyl nitrate (PAN), acetylene (C$_2$H$_2$), and formic acid (HCOOH) show strong local enhancements up to altitudes of 16 km. More than 500 pptv of PAN, more than 200 pptv of C$_2$H$_2$, and more than 200 pptv of HCOOH are observed.
description: netCDF data can be opened with a variety of software tools, including Matlab, Origin, or Python. For a simple GUI solution, Panoply is recommended: https://www.giss.nasa.gov/tools/panoply/download/
DOI: 10.35097/1453
title: GLORIA@HEMERA large stratospheric balloon campaign Timmins/Canada August 2022-update: high-resolution version of https://doi.org/10.5445/IR/1000159524

description: Video from GoPro images taken in limb-view during the flight of the GLORIA (Gimballed Limb Observer for Radiance Imaging of the Atmosphere) infrared spectrometer on a stratospheric balloon during the HEMERA measurement campaign from Timmins/Canada in August 2022. Update of https://doi.org/10.5445/IR/1000158826 (now: high-resolution version for download, no black bars on side). High resolution version of https://doi.org/10.5445/IR/1000159524
description: mp4-video
DOI: 10.35097/1127
title: GUARD autosampler - Arduino sketch

description: Die Datei im txt-Format enthält das Skript, geschrieben mit der Software "Arduino", welches die Funktionen des in dem zugehörigem Zeitschriftenaufsatz präsentierten automatischen Fluid-Probenehmers "GUARD" steuert. Durch gezielte Änderung der entscheidenden Parameter in diesem Skript können die Funktionen des Probenehmers in gewissen Grenzen auf die Anforderungen des jeweiligen Anwenderkreises angepasst werden.
DOI: 10.35097/1128
title: GUARD autosampler - Assembly instructions

description: Die Datei im pdf-Format enthält eine Anleitung zum Bau des im zugehörigen Zeitschriftenaufsatz präsentierten automatisierten Fluid-Probenehmers "GUARD".