https://researchdata.se/sv/catalogue Search results sv This dataset supports the peer-reviewed manuscript titled "Radiance economy in light-emitting diodes". All data are provided in raw form as acquired directly from the measurement systems, without any secondary processing. The files are compatible with standard data analysis software such as Origin and Excel. The dataset is made available to ensure transparency, reliability, and reproducibility for future related research. Tue, 07 Jul 2026 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-20778197 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-20778197 Linköpings universitet Zhang, Muyi Jun, Wu Kim, Ju-Hyeon Tian, Zhennan Yang, Yong Zhong, Kaiquan Bai, Sai Gao, Feng Data for main text Figure 1-5 and SI figures Thu, 18 Jun 2026 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-20753391 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-20753391 Linköpings universitet Zhang, Huotian Gao, Feng Data supplementing the article 'Modifying Klucel G: Evaluation of non-aqueous iron gall ink corrosion treatments'. The data was originally collected as part of a collaborative project between the University of Gothenburg, the Swedish National Archives, the Swedish National Heritage Board and RISE Research Institutes of Sweden, called "Stabilising heritage: Iron gall ink corrosion on paper and the eternal search for an ideal treatment" (Diarienummer RAÄ-2023-0820). Data from the following analytical techniques is included: 1. Scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDS); 2. X-ray fluorescence spectroscopy (XRF); 3. Tensile testing; 4. pH measurements; 5. Colorimetry. Instrument reports are also included for the SEM-EDS and XRF analysis. The intention of the project was to develop a non-aqueous treatment method for documents containing iron gall ink which could provide both mechanical stability and reduce the corrosion rate. SEM-EDS mapping was performed to observe the penetration depth of the ink and treatment materials in the paper samples while XRF lines scans were performed to better understand the phenomenon of a "halo" effect around certain ink samples after treatment. Tensile testing was performed to understand the effects of treatments and aging on the mechanical properties of the paper. Colorimetry was used to understand color changes as the result of aging and treatment, while pH was used to determine the effects of treatments on sample pH. All data was originally collected as part of the master's thesis "Stabilising heritage: Iron gall ink corrosion on paper and the eternal search for an ideal treatment: " by Anna Lagerqvist Alidoost, Department for Conservation, University of Gothenburg (https://hdl.handle.net/2077/82110). Thu, 28 May 2026 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-20427712 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-20427712 Riksantikvarieämbetet Canosa, Elyse Lagerqvist Alidoost, Anna Mathias, Bark Before the move of Kiruna Church (http://kulturarvsdata.se/raa/bbr/21300000003898), preparations needed be made to protect an altar painting ('Soltavlan'  eller 'Den heliga lunden' by Prince Eugen: http://kulturarvsdata.se/raa/dokumentation/7172d859-fe59-4e4b-b70f-e23c20158c5c ) inside the church from potential damage. In order to identify risks and facilitate decision-making, an understanding of the painting's material composition is needed. The painting is composed of oil paint on canvas and the canvas is in turn glued to plaster that has an approximate depth of 2 cm. Behind the painting is the brick wall that makes up the church's eastern brick facade. During the investigation at the  Heritage Laboratory at the Swedish National Heritage Board, analyses were carried out on the glue that attaches the canvas to the plaster, the plaster and the pigment. The overall aim of the project was to create conditions for preserving the altar painting with as much respect as possible. During the analysis, it was found that the glue used to glue the canvas to the plaster contained lead white in an oil-based binder. A green pigment that was inspected appeared to contain a mixture of cadmium yellow, viridian or chrome green and potentially zinc white. The mortar is made from a calcium-based binder containing stone inclusions of silicon, aluminum, potassium, sodium and iron. Data from the following analytical techniques is included: 1. Fiber optic reflectance spectroscopy (FORS); 2. Fourier transform infrared spectroscopy (FTIR); 3. visible and UV light optical microscopy; 4. Scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDS).  Reports containing measurement parameters and sample information are also included. Project code RAÄ-2023-2199. Fri, 30 Jan 2026 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-18432054 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-18432054 Riksantikvarieämbetet Canosa, Elyse Hinrichs Degerblad, Kathrin Data from the project 'Boglösa church door' (Diarienummer RAÄ-2025-0134). Data from the following analytical techniques is included: 1. Fourier transform infrared spectroscopy (FTIR); 2. X-ray fluorescence (XRF); 3. Scanning electron microscopy - energy dispersive x-ray spectroscopy (SEM-EDS); 4. UV-VIS microscopy; 5. Stereomicroscopy . Also included are instrument reports which compile the data, provide the measurement parameters and describe the samples/measurement areas for each technique.  In the spring of 2024, Acta Konservering was commissioned for the conservation of a medieval iron church door in Boglösa Church (http://kulturarvsdata.se/raa/bbr/21300000002550) . The church is originally a Romanesque church from the 12th or early 13th century. The door is in use and is located in the church entrance. The request for conservation was based on observations of problems with corrosion on the surface and cracking paint layers. During Acta's examination of the door, it was observed that the paint layers on the outside of the door were unusually intact, and that there were textile remains under the decorative elements of the door. It is very unusual for there to be preserved remains of textile and older paint on this type of door, since the iron has often been regularly surface-treated to prevent corrosion. In order to be able to carry out correct conservation measures on the door, it is important to know what color scheme the door has had, both on the metallic part of the door and the textiles. The door currently appears to be painted a dark brown, and one of the additional research questions was to identify whether this outer paint layer contains tar. There are also a number of fittings on the door that have visible corrosion products that could possibly be due to a previous tinning. In addition to this information being crucial for choosing conservation methods, it is also a unique opportunity to obtain more information about this type of object. Analysis of the paints of the door, the paint of the decorative elements and the dyes of the textiles can provide information about the original coloring of the door. Analysis of corrosion products under the paint layers on the decorative elements could also provide information about whether these have been tinned. Fri, 23 Jan 2026 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-18350876 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-18350876 Riksantikvarieämbetet Canosa, Elyse Berg, Helena Jagare, Kajsa Hansson, Ann-Sofie X-ray fluorescence (XRF), SEM-EDS, FTIR, polarized light microscopy, and MBI data from a project in collaboration with Helsingborgs museum, Sweden to investigate the materials used in the painting Nu är det jul igen by Carl Larsson.  XRF data are for both in situ macro-XRF scanning of selected parts of the painting and micro-XRF analyses of samples taken from the edges of the painting.  Instrument reports describing the analysis points, parameters used and some basic interpretation information are included. Painting: Nu är det jul igen (http://kulturarvsdata.se/HeM/objekt/153857) Artist: Carl Larsson (http://vocab.getty.edu/page/ulan/500006371) Owner: Helsingborgs museum (https://helsingborgsmuseum.se/) Data colleted by the Swedish National Heritage Board (www.raa.se), project identifyer RAÄ-2023-2823. Tue, 14 Oct 2025 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-17350872 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-17350872 Riksantikvarieämbetet Norrehed, Sara Berg, Helena Gräbe, Christina Hinrichs Degerblad, Kathrin Data from the project "Cellulose nitrate lacquer on silver objects" (RAÄ-2021-3131). Each zip file contains an Instrument report file which gives sample names and descriptions, instrument parameters, spectra figures and in some report interpretation notes. Data from the following analytical techniques is included: 1. Scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDS); 2. Polarized light microscopy (PLM); 3. Fourier transform infrared spectroscopy (FTIR). Data was collected as a continuation of (but after the publication of) the bachelor theses "A greener solution: Investigating the potential use of Green Solvents to remove cellulose nitrate lacquer from silver objects" by Evelina Borén (https://hdl.handle.net/2077/72648) and "The use of gels for the removal of cellulose nitrate lacquer on silver" by Katayon Miri (https://hdl.handle.net/2077/72650), both at the Department for Conservation, University of Gothenburg. The project is also part of a larger invesitgation about removing cellulose nitrate lacquer on silver objects, supported by European Union funded IPERION HS project (2020-INFRAIA-2019-1). Instrument reports including technical specifications of each instrument can also be found under DOI 10.5281/zenodo.10869595 . Mon, 25 Mar 2024 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-7355017 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-7355017 Riksantikvarieämbetet Canosa, Elyse Bylund Melin, Charlotta Data from the project "Cracks in the painting Konstnärsförbundets Styrelse" (Diarienummer RAÄ-2021-3125) including files for sample descriptions. Data from the following analytical techniques is included: Scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDS); X-ray fluorescence spectroscopy (XRF); X-ray imaging; Technical photography;  Microscopy. Instrument reports including technical specifications of each instrument as well as a sampling protocol can be found under DOI 10.5281/zenodo.10560902. All data was collected as part of the bachelor thesis "Sprickorna i Konstnärsförbundets styrelse" by Helena Berg, Department for Conservation, University of Gothenburg (https://hdl.handle.net/2077/72659). Tue, 23 Jan 2024 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-10556299 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-10556299 Riksantikvarieämbetet Berg, Helena Canosa, Elyse The data published here are the basis for the article by Paul et al. in Commun. Chem. with the title 13C- and 15N-labeling of amyloid-β and inhibitory polypeptides to study their interaction via nanoscale infrared spectroscopy and for the Research Square preprint by Paul et al. with DOI: 10.21203/rs.3.rs-2141341/v1 (https://doi.org/10.21203/rs.3.rs-2141341/v1) and title 13C-isotope-editing of nanoscale infrared images reveals the action of an inhibi­tory peptide against amyloid-β aggregation.   These publications show that 13C, 15N-labeling can be used to discriminate between two peptides in nanoscale images of their infrared absorption, even when they have similar secondary structure. We studied different aggregation states of the amyloid-β peptide (Aβ) and its interaction with an inhibitory cell-penetrating peptide (NCAM1-PrP) using scattering-type scanning near-field optical microscopy (s-SNOM). Labeled and unlabeled peptides could be distinguished by comparing images of the optical phase taken at wavenumbers characteristic for either the labeled or the unlabeled peptide. Some of the provided files require particular software to view them: Gwyddion (http://gwyddion.net/) is needed for image files, neaPLOT (attocube) for nano-FTIR spectra, and OPUS (Bruker) for FTIR spectra. Processed neaPLOT files were stored as csv files. OPUS files were converted to txt files but can also be read by Spectragryph (https://www.effemm2.de/spectragryph/about.html), which is free for private and academic use. Mon, 03 Jul 2023 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-17045-sthlmuni-23609580 https://researchdata.se/sv/catalogue/dataset/doi-10-17045-sthlmuni-23609580 Stockholms universitet Suman Paul Adéla Jeništová Faraz Vosough Elina Berntsson Cecilia Mörman Jüri Jarvet Astrid Gräslund Sebastian K. T. S. Wärmländer Andreas Barth The data contained in the zip file constitute the main research data of the article entitled as "Quantum version of the integral equation theory based dielectric scheme for strongly coupled electron liquids", published in the Journal of Chemical Physics as a Communication. In this article, a novel dielectric scheme is proposed for strongly coupled electron liquids that handles quantum mechanical effects beyond the random phase approximation level and treats electronic correlations within the integral equation theory of classical liquids. This self-consistent scheme features a complicated dynamic local field correction functional and yields unprecedently accurate results for the static structure factor without featuring any adjustable or empirical parameters. In particular, the datasets contain the static structure factors of the paramagnetic electron liquid as computed by four schemes of the self-consistent dielectric formalism and as extracted from state-of-the-art path integral Monte Carlo (PIMC) simulations. The dielectric schemes of interest are all tailor-made for the strongly coupled regime of the finite temperature uniform electron fluid (UEF; also known as jellium or quantum one-component plasma). These are the newly proposed quantum version of the integral equation theory based scheme (qIET), the newly proposed quantum version of the hypernetted-chain based scheme (qHNC), the integral equation theory based scheme (IET) [1,2] and the hypernetted-chain based scheme (HNC) [3,4]. The static structure factors are provided for 20 paramagnetic UEF state points defined by (rs,Θ)={(50,0.50),(60,0.50),(70,0.50),(80,0.50),(90,0.50),(100,0.50),(100,0.75),(100,1.00),(100,2.00),(100,4.00),(110,0.50),(125,0.50),(125,0.75),(125,1.00),(125,1.50),(125,2.00),(150,0.50),(150,1.00),(200,0.50),(200,1.00)} where rs is the quantum coupling parameter and Θ is the degeneracy parameter.  In the qIET, qHNC, IET and HNC datasets; the first column corresponds to the wavenumber normalized to the Fermi wavenumber and the second column corresponds to the static structure factor value. In the PIMC datasets, the first column corresponds to the wavenumber multiplied by the first Bohr radius, the second column corresponds to the static structure factor value and the third column corresponds to the associated error bars. [1] P. Tolias, F. Lucco Castello and T. Dornheim, J. Chem. Phys. 155, 134115 (2021). [2] F. Lucco Castello, P. Tolias and T. Dornheim, EPL 138, 44003 (2022). [3] S. Tanaka, J. Chem. Phys. 145, 214104 (2016). [4] T. Dornheim, T. Sjostrom, S. Tanaka and J. Vorberger, Phys. Rev. B 101, 045129 (2020). This work was partly funded by the Swedish National Space Agency under grant no. 143/16. This work was also partially supported by the Center for Advanced Systems Understanding (CASUS) which is financed by Germany's Federal Ministry of Education and Research (BMBF) and the Saxon state government out of the state budget that is approved by the Saxon State Parliament. The PIMC simulations were partly carried out at the Norddeutscher Verbund für Hoch- und Höchstleistungsrechnen (HLRN) under grant shp00026, and on a Bull Cluster at the Center for Information Services and High Performance Computing (ZIH) at Technische Universität Dresden. The dielectric schemes were numerically solved on resources provided by the Swedish National Infrastructure for Computing (SNIC) at the NSC (Linköping University) that is partially funded by the Swedish Research Council under grant agreement no. 2018-05973. Sun, 12 Mar 2023 00:00:00 GMT https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-7726192 https://researchdata.se/sv/catalogue/dataset/doi-10-5281-zenodo-7726192 Kungliga Tekniska högskolan Tolias, Panagiotis Lucco Castello, Federico Dornheim, Tobias