Helmholtz Institute Freiberg for Resource Technology
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1328 research outputs found
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Segmented Galena Dissolution Data
No full textRaw CT data which are used to calculate the dissolution rates spectra and to generate reactivity map.Funded by European Union's Horizon 2020 Research and Innovation Program under Grant Agreement 81574
The chemical journey of Europium(III) through winter rye (Secale cereale L.) – Understanding through mass spectrometry and chemical microscopy
No full textA combination of biochemical preparation methods with microscopic, spectroscopic, and mass spectrometric analysis techniques as contemplating state of the art application, was used for direct visualization, localization, and chemical identification of europium in plants. This works illustrates the chemical journey of europium (Eu(III)) through winter rye (Secale cereale L.), providing insight into the possibilities of speciation for Rare Earth Elements (REE) and trivalent f-elements. Kinetic experiments of contaminated plants show a maximum europium concentration in Secale cereale L. after four days. Transport of the element through the vascular bundle was confirmed with Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray analysis (EDS). For chemical speciation, plants were grown in a liquid nutrition medium, whereby Eu(III) species distribution could be measured by mass spectrometry and luminescence measurements. Both techniques confirm the occurrence of Eu malate species in the nutrition medium, and further analysis of the plant was performed. Luminescence results indicate a change in Eu(III) species distribution from root tip to plant leaves. Microscopic analysis show at least three different Eu(III) species with potential binding to organic and inorganic phosphate groups and a Eu(III) protein complex. With plant root extraction, further europium species could be identified by using Electrospray Ionization Mass Spectrometry (ESI MS). Complexation with malate, citrate, a combined malate-citrate ligand, and aspartate was confirmed mostly in a 1:1 stoichiometry (Eu:ligand). The combination of the used analytical techniques opens new possibilities in direct species analysis, especially regarding to the understanding of rare earth elements (REE) uptake in plants. This work provides a contribution in better understanding of plant mechanisms of the f-elements and their species uptake
Data publication: Development and Biological Evaluation of the First Highly Potent and Specific Benzamide-Based Radiotracer [¹⁸F]BA3 for Imaging of Histone Deacetylases 1 and 2 in Brain
No full textThe data publication contain: 1) Radiosynthesis data (Scheme of the synthesis module; RP-HPLC chromatograms of formulated [18F]BA3; MLC chromatograms of in vivo metabolism studies) 2) Biological data (Baseline TAC of CD-1 mice brain, biodistribution after i.v. injection of [18F]BA3) 3) Analytical data (1H, 13C, 19F NMR spectra; LC-MS chromatograms for final products
Data publication: Epitaxial lateral overgrowth of tin spheres driven and directly observed by helium ion microscopy
No full textRaw data for the publication: "Epitaxial lateral overgrowth of tin spheres driven and directly observed by helium ion microscopy". It contains helium ion microscopy, transmission electron microscopy, scanning electron microscopy as well as gallium focused ion microscopy images and XPS data. It shows how the irradiation of tin spheres with keV He ions causes epitaxial lateral overgrowth
Data publication: Collapse of Coherent Large Scale Flow in Strongly Turbulent Liquid Metal Convection
No full textRawdata on which the publication is based on. .BDD binary files for Ultrasound measurements. .dat: direct temperature measurement data
RawData - Liquid fraction investigations in a RPB (small printed zick-zack foam 2, multi point) using GammaCT
No full textFor liquid fraction investigations in a rotating printed zick-zack foam (small) packed bed (RPB) angular-resolved time-averaged gamma-ray computed tomography (GammaCT) is applied. Liquid is injected by a multi point injector. This repository contains:
the raw data of the gamma-ray CT scanner,
the extracted projection-averaged profile data matrix and
the restructured angular-resolved time-averaged sinogram data
RawData - Liquid fraction investigations in a RPB (solid foam, single point) using GammaCT
No full textFor liquid fraction investigations in a rotating solid foam packed bed (RPB) angular-resolved time-averaged gamma-ray computed tomography (GammaCT) is applied. Liquid is injected by a single point injector. This repository contains
the raw data of the gamma-ray CT scanner,
the extracted projection-averaged profile data matrix and
the restructured angular-resolved time-averaged sinogram data
RawData - Liquid fraction investigations in a RPB (big printed zick-zack foam, multi point) using GammaCT
No full textFor liquid fraction investigations in a rotating printed zick-zack foam (big) packed bed (RPB) angular-resolved time-averaged gamma-ray computed tomography (GammaCT) is applied. Liquid is injected by a multi point injector. This repository contains:
the raw data of the gamma-ray CT scanner,
the extracted projection-averaged profile data matrix and
the restructured angular-resolved time-averaged sinogram data
Dataset for Inversion of GISAXS data (1 layer)
No full textThe dataset consists of 50000 X-ray diffraction patterns simulated by BornAgain [1] software. For each simulation, a multilayer sample model of the following structure was used: air, tantalum oxide, silicon dioxide, and substrate. Parameters of each layer but tantalum oxide were kept fixed. Hence, each diffraction pattern depends on the parameters of the tantalum oxide layer: real and complex part of refractive index, thickness, roughness, Hurst parameter, and correlation length. Each simulation output is stored in an h5py file consisting of 1) diffraction image as a NumPy array of shape [1024, 512]; 2) sample parameters as a NumPy array with 6 elements. For further details regarding simulation, see https://github.com/maxxxzdn/gisaxs-reconstruction/simulation/simulation.
[1] Pospelov, G., Van Herck, W., Burle, J., Carmona Loaiza, J.M., Durniak, C., Fisher, J., Ganeva, M., Yurov, D., & Wuttke, J. (2020). BornAgain: software for simulating and fitting grazing-incidence small-angle scattering. Journal of Applied Crystallography, 53, 262 - 276
Data publication: Terahertz-Induced Energy Transfer from Hot Carriers to Trions in a MoSe2 Monolayer
No full textOrginaldaten der in der Publikation verwendet Bilde