TY - CHAP A1 - Schmeißer, Dieter A1 - Müller, Sebastian A1 - Henkel, Karsten A1 - Müller, Klaus A1 - Wehner, Stefan T1 - In-situ analysis of moving reaction fronts for the bistable CO oxidation reaction on noble metal catalyst T2 - Extended Abstracts Book of First International Conference on Materials for Energy N2 - Experimental data on the reaction kinetics of catalytic processes are prerequisite for modeling of such reactions and their output. We investigate the CO oxidation on some noble metal catalysts, like Iridium(111) and Palladium(111) which is a bistable surface reaction. In a specific range of CO content in the feed gas islands of one or the other adsorbate nucleate and grow, which is recorded with photo electron emission microscopy (PEEM). During these transients the coverage on the surface changes from predominantly oxygen covered to predominantly CO covered resp. vice versa. But the resolution of PEEM and especially its unknown and nonlinear dependence of coverage of the two adsorbates (oxygen and CO) and image intensity make it impossible to extract the changes in coverage. On the other hand the reaction diffusion model based on the Langmuir-Hinshelwood-mechanism delivers the coverage of oxygen and carbon monoxide. The shapeand wall velocity of those islands has been connected perfectly to each other [CPL 423 (2006) 39], but not the absolute coverage and their variation during the reaction. Since the domain wall velocity is small on Iridium(111), this has opened the possibility for a detailed analysis of the changing coverage inside this domain wallutilizing synchrotron radiation and photo electron spectroscopy at BESSY II. The coverage profile of oxygen and CO inside a moving domain wall was measured for both cases using XPS spectra at O1s, C1s and the valence band during thereaction. Comparison with the reaction-diffusion-model and other catalytic surfaces, like Palladium(111) are done. KW - CO oxidation KW - Ir KW - Pd KW - photo electron emission microscopy (PEEM) Y1 - 2010 SN - 978-3-89746-117-8 SP - S. 932 PB - Dechema e.V. CY - Frankfurt ER - TY - JOUR A1 - Müller, Sebastian A1 - Seibold, Götz A1 - Schmeißer, Dieter ED - Vierhaus, Heinrich Theodor T1 - Preparation and Characterization of TiO2 Thin Films and Cr and Co Doped TiO2 Thin Films Y1 - 2007 ER - TY - JOUR A1 - Schmeißer, Dieter A1 - Domaradzki, Jarosław A1 - Kaczmarek, Danuta A1 - Borkowska, Angnieszka A1 - Müller, Sebastian T1 - Influence of Annealing on the Structure and Stoichiometry of Europium-Doped Titanium Dioxide Thin Films Y1 - 2008 ER - TY - CHAP A1 - Müller, Sebastian A1 - Schmeißer, Dieter T1 - Synchrotron radiation spectroscopy studies of ultrathin chromium films on titanium dioxide T2 - International Students and Young Scientists Workshop "Photonics and Microsystems", 2009, 25 - 27 June 2009, Harz University, Wernigerode, Germany KW - synchrotron KW - radiation KW - spectroscopy KW - ultrathin KW - titanium KW - chromium Y1 - 2009 SN - 978-1-4244-4303-1 SP - 64 EP - 68 PB - IEEE CY - Piscataway, NJ ER - TY - JOUR A1 - Müller, Sebastian A1 - Schmeißer, Dieter T1 - Properties of Cr deposited on TiO2 thin films KW - cr KW - TiO2 Y1 - 2008 ER - TY - CHAP A1 - Müller, Sebastian A1 - Schölzel, Mario T1 - Combining Hardware and Software Based Self Repair Methods for Statically Scheduled Data Paths T2 - 2010 IEEE 25th International Symposium on Defect and Fault Tolerance in VLSI Systems (DFT 2010), Kyoto, Japan, 6 - 8 October 2010 KW - Prozessoren KW - Zuverlässigkeit KW - Selbstreparatur Y1 - 2010 SN - 978-1-424-48447-8 N1 - IEEE Computer Society SP - 90 EP - 98 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Müller, Sebastian A1 - Schölzel, Mario A1 - Vierhaus, Heinrich Theodor T1 - Hierarchical Self-repair in Heterogenous Multi-core Systems by Means of a Software-based Reconfiguration T2 - VEFRE 8th Workshop on Dependability and Fault-Tolerance, Proceedings of ARCS 2012 Workshops Y1 - 2012 SN - 978-1-4673-1913-3 PB - IEEE CY - Piscataway ER - TY - CHAP A1 - Müller, Sebastian A1 - Schölzel, Mario A1 - Vierhaus, Heinrich Theodor T1 - Towards a Graceful Degradable Multicore-System by hierarchical Handling of Hard Errors T2 - DaRMuS 2013, Special Session on Dynamic and Reliable Multicore Systems, Hosted by 21st Euromicro PDP Conference Y1 - 2013 SN - 978-146-735-321-2 SP - 302 EP - 309 PB - IEEE CY - Piscataway ER - TY - THES A1 - Müller, Sebastian T1 - Synchrotron radiation spectroscopy studies of the initial interaction of Chromium and Cobalt with the surface of Titanium Dioxide N2 - In the framework of this thesis, synchrotron radiation based spectroscopy methods are applied to study the electronic structures of stoichiometric Rutile single crystals and TiO2 thin films, and the initial stage of chromium and cobalt growth on TiO2 thin films. Resonance photoemission spectroscopy of clean TiO2 at the Ti L2,3 edges led to Auger-like features, with kinetic energies corresponding to the Ti L2,3M4,5M4,5 Auger decay channels. The presence of these features is assigned to origin from a d2L2 charge transfer state. The resonance of the Ti L3M2,3V Auger channel at the Ti L2 edge is assigned to the L2L3V Coster-Kronig Auger, followed by the normal L3M2,3V Auger decay. The deposition of chromium on the TiO2 film causes a strong interaction at the interface, in which TiO(2-x) is formed together with chromium in the Cr 3+ state. Besides the oxidized component, contribution of metallic chromium is found as well. In the ultra-low coverage regime, post-deposition oxidation is observed, in which metallic chromium is oxidized to Cr2O3, accompanied by re-oxidation of the substrate to TiO2. The interface reaction is also reflected by the appearance of two defect states in the band gap. Resonant photo-emission at the Cr 2p and Ti 2p edges shows well distinguishable Cr 3d respectively Ti 3d character of the respective states. Indications for self-cleaning properties are found by removal of surface carbon during storage in UHV, but the influence of chromium on these properties is not studied in detail. The interaction between cobalt and TiO2 is weaker than that of chromium and TiO2. Nevertheless, an interface reaction is found, in which some of the deposited cobalt is oxidized, while the oxide support is partly reduced. The particular oxidation state of Cobalt is identified by means of multiplet calculation including charge transfer and crystal field effects. The calculated XAS and XPS spectra indicate Co 2+ in a tetrahedral coordination with four oxygen atoms. The metallic component of cobalt gives rise to a broad resonance in the valence band down to -20 eV, with a pronounced satellite feature that reflects the oxidized component. KW - Titanium dioxide KW - Metal/metal-oxide interaction KW - Multiplet-calculation KW - Resonant photoemission Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus-18914 UR - http://opus.kobv.de/btu/volltexte/2010/1891/ ER - TY - CHAP A1 - Müller, Sebastian A1 - Koal, Tobias A1 - Schölzel, Mario A1 - Vierhaus, Heinrich Theodor T1 - Timing for Virtual TMR in Logic Circuits T2 - IOLTS 2014, 20th IEEE International On-Line Testing Symposium Hotel Cap Roig, Platja d'Aro, Catalunya, Spain July 7-9, 2014 Y1 - 2014 SN - 978-1-4799-5324-0 ER - TY - CHAP A1 - Hettchen, Sebastian A1 - Pinkepank, Heidi A1 - Scharnholz, Lars A1 - Müller, Tim S. ED - Bayerl, Günter ED - Belzyt, Leszek C. T1 - Ślady przemysłu od Lauchhammer do Nowej Soli KW - Industrie Kulturlandschaft Geschichte, Niederlausitz, Lubuskie, Lauchhammer, Plessa, Domsdorf, Lichterfeld, Cottbus, Peitz, Forst, Sommerfeld, Sorau, Sagan, Grünberg, Neusalz Y1 - 2014 SP - 133 EP - 173 PB - be.bra Wissenschaft Verlag GmbH CY - Berlin ET - 1. Auflage ER - TY - CHAP A1 - Müller, Sebastian A1 - Schmeißer, Dieter T1 - The initial stages of Chromium growth on Titaniumdioxide-Investigations using synchrotron radiation T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft ; Reihe 6, Bd. 42 N2 - We investigate the interface of Cr-TiO2 during the initial stages of Cr deposition. Experiments are carried out at BESSY II (BL U49/2-PGM2). Using XPS, XAS and ResPES we obtain information about electronic structure at the interface. We confirm the results of growth studies by Christian Winde obtained by TEM-EELS. In addition, we find that Cr deposition induces two gap states which appear about 1 eV and 3 eV below EF. Using ResPES, these states can be identified as being Cr-like and Ti-like respectively. Core-level-XPS and CIS-spectra of the lower gap state indicate the existence of mainly Cr4+ at low coverage (< 1 ML). At higher coverage (≈ 2.5 ML) metallic Cr is observed as well as metallic Ti. Oxidized Cr occurs mainly as Cr3+. CIS-spectra of higher gap state show metallic behavior with both Cr- and Ti-like character. CIS-spectra of lower gap-state confirm the existence of Cr3+. Reference: Christian Winde, Herstellung und Charakterisierung von Cr Schichten auf TiO2 (110)Oberflächen, PhD Thesis, University of Stuttgart, 2002 Y1 - 2007 UR - http://www.dpg-verhandlungen.de/year/2007/conference/regensburg/part/o/session/33/contribution/8 SN - 0420-0195 SP - S. 598 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - CHAP A1 - Müller, Sebastian A1 - Schmeißer, Dieter T1 - Synchrotron radiation spectroscopy studies of the initial interaction between cobalt and titanium dioxide T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 45 N2 - Small metallic particles deposited on oxide surfaces can serve as heterogeneous catalysts, as for example TiO2 supported cobalt is a known Fischer-Tropsch-Catalyst. The goal of the presented studies is to investigate the interaction between cobalt and TiO2 in the initial step of growth by synchrotron radiation based spectroscopy. PES studies of TiO2 supported cobalt show a reduction of the oxide support, accompanied by an oxidation of the deposited material. The oxidation is not complete, but metallic cobalt is found already in the very first step of growth. Uniform decrease of both substrate PES lines indicate very weak interaction between overlayer and TiO2. An atomic multiplet calculation including charge transfer and crystal field effects is applied to simulate the experimental Co 2p XAS and XPS spectra of the oxidized component. The results allow the identification of the local coordination as well as the identification of the oxidation state of cobalt. Y1 - 2010 SN - 0420-0195 SP - S. 652 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - CHAP A1 - Müller, Sebastian A1 - Schmeißer, Dieter T1 - Direct Observation of d2L2 Charge Transfer States in TiO2 thin films by Resonant Photoelectron Spectroscopy T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43 N2 - We investigate the electronic structure of TiO2 thin films by SR-PES, NEXAFS and ResPES. The films are prepared in a combined in-situ/ex-situ process that leads to stoichiometric thin films (≈ 10 nm) in Rutile structure. We focus on ResPES at the Ti 2p edge. When the photon energy is close to the Ti 2p absorption edge we observe additional features about 13 eV below the valence band main features. These features show clear spectator auger decay at the resonance leading to d0 final state. From this, we deduce the existence of the d2L2 initial charge transfer state as this is the only possible channel that enables the corresponding spectator auger decay. These features have the same origin as the satellite structures observed in core level spectra, esp. 2p and 3p. Y1 - 2008 UR - http://www.dpg-verhandlungen.de/year/2008/conference/berlin/part/o/session/32/contribution/3 SN - 0420-0195 SP - S. 592 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - CHAP A1 - Müller, Sebastian A1 - Schmeißer, Dieter T1 - Investigation of ultra-thin Chromium layers on Titanium Dioxide by resonant photoemission T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 44 N2 - Oxide supported metal films and clusters offer interesting properties with a wide range of possible applications. In this context, Titanium Dioxide is chosen as a model substrate due to its simple electronic structure with a d0 configuration. We study the interaction of ultrathin Chromium films deposited on TiO2 film with focus on the modifications of the valence band and band gap region. Normal photoemission in bulk and surface sensitive modes as well as resonant photoemission at the Cr 2p and Ti 2p edges are used to distinguish the different Cr 3d and Ti 3d contributions to the valence band. In the initial step we find to gap states of distinct character with a sharp resonance of the Cr 3d related state at the Cr 2p edge. With increasing layer thickness we observe that this resonance extends to about 20 eV below the Fermi-Energy. Datasets of valence band spectra measured around the Cr 2p edge show 2 resonant mechanisms in this case i.e. a participator channel for the 3d state accompanied by a spectator channel at fixed kinetic energy. Y1 - 2009 UR - http://www.dpg-verhandlungen.de/year/2009/conference/dresden/part/o/session/3/contribution/5 SN - 0420-0195 SP - S. 453 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - RPRT A1 - Weidner, Silke A1 - Müller, Marita A1 - Neider, Sebastian A1 - Komm, Stefanie T1 - Großprojekte und innerstädtischer Einezelhandel Y1 - 2013 PB - Universität Leipzig, Institut für Stadtentwicklung und Bauwirtschaft (ISB) CY - Leipzig ER - TY - CHAP A1 - Schölzel, Mario A1 - Koal, Tobias A1 - Müller, Sebastian A1 - Scharoba, Stefan A1 - Röder, Stephanie A1 - Vierhaus, Heinrich Theodor T1 - A Comprehensive Software-Based Self-Test and Self-Repair Method for Statically Scheduled Superscalar Processors T2 - 17th IEEE Latin-American Test Symposium - LATS 2016 Y1 - 2016 SN - 978-1-5090-1331-9 U6 - https://doi.org/10.1109/LATW.2016.7483336 SP - 33 EP - 38 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Müller, Jens A1 - Kreuz, Sebastian A1 - Höhl, Wolfgang A1 - Lüdecke, Volker ED - Pivec, Maja ED - Gründler, Josef T1 - A Process full of Challenges – A Serious Game About the German Energy Transition T2 - Proceedings of the 11th European Conference on Games Based Learning , Graz, Austria, 5-6 October 2017 Y1 - 2017 SN - 978-1-911218-57-9 SN - 978-1-911218-56-2 SP - 456 EP - 463 PB - Academic Conferences and Publishing International CY - Reading ER - TY - GEN A1 - Ranjan, Amit A1 - Scholz, Julia A1 - Semmler, Torsten A1 - Wieler, Lothar H. A1 - Ewers, Christa A1 - Müller, Stefanie A1 - Pickard, Derek J. A1 - Schierack, Peter A1 - Tedin, Karsten A1 - Ahmed, Niyaz A1 - Schaufler, Katharina A1 - Guenther, Sebastian T1 - ESBL-plasmid carriage in E. coli enhances in vitro bacterial competition fitness and serum resistance in some strains of pandemic sequence types without overall fitness cost T2 - Gut pathogens Y1 - 2018 U6 - https://doi.org/10.1186/s13099-018-0243-z SN - 1757-4749 VL - 10 IS - 24 ER - TY - RPRT A1 - Bett, Andreas W. A1 - Erlach, Berit A1 - Gölz, Sebastian A1 - Gutnik, Magdalena A1 - Hentschel, Anja A1 - Hirschl, Bernd A1 - Hübner, Gundula A1 - Kienzlen, Volker A1 - Matthies, Ellen A1 - Müller, Florian J. Y. A1 - Münch, Wolfram A1 - O'Sullivan, Marlene A1 - Rech, Bernd A1 - Reusswig, Fritz A1 - Schöbel-Rutschmann, Sören A1 - Schomerus, Thomas A1 - Stryi-Hipp, Gerhard T1 - Vorschläge für einen klimagerechten Ausbau der Photovoltaik und Windenergie N2 - Photovoltaik- und Windenergieanlagen spielen eine Schlüsselrolle für eine klimagerechte Energieversorgung. Zukünftig werden sie einen Großteil des Energiebedarfs decken – auch in den Sektoren Wärme und Verkehr. Studien zeigen: Für Klimaneutralität 2045 muss die Ausbaugeschwindigkeit auf das Drei- bis Vierfache der letzten Jahre erhöht werden. Komplexe und langwierige Planungs- und Genehmigungsverfahren, zu wenig ausgewiesene Flächen und eine unzureichende Bürgerbeteiligung hemmen jedoch den Ausbau. Das Impulspapier „Vorschläge für einen klimagerechten Ausbau der Photovoltaik und Windenergie“ einer interdisziplinären Arbeitsgruppe des Akademienprojekts Energiesysteme der Zukunft (ESYS) nennt zwölf Handlungsoptionen, um Hemmnisse abzubauen und die Ausbaugeschwindigkeit auf die erforderlichen 15 bis 25 Gigawatt pro Jahr zu beschleunigen. KW - Photovoltaik KW - Windenergie KW - Solarenergie KW - Ausbau erneuerbarer Energien Y1 - 2021 UR - https://energiesysteme-zukunft.de/publikationen/stellungnahme/ausbau-photovoltaik-und-windenergie ER - TY - RPRT A1 - Schmidt, Peer A1 - Donath, Ines A1 - Wels, Martin A1 - Pinnau, Sebastian A1 - Grau Turuelo, Constantino A1 - Breitkopf, Cornelia A1 - Hack, Klaus A1 - Baben, Moritz to A1 - Reis, Bruno A1 - Müller, Michael A1 - Sergeev, Dmitry A1 - Qi, Jia T1 - PCM Screening - Evaluierung eutektischer Gemische für den Einsatz als PCM: thermodynamische Modellierung und experimentelle Methoden : Energie Speicher: PCM-Screening : Schlussbericht N2 - Ein wichtiges Ziel der Bundesregierung ist der Ausbau des Anteils erneuerbarer Energien an der gesamten Stromerzeugung. Die Entwicklung optimierter Wärme- und Kältespeicher stellt einen wichtigen Baustein bei der Erreichung dieser Zielstellung dar. Elektrisch betriebene Wärmepumpen und Kompressionskältemaschinen sowie dezentrale Klein-BHKW bieten in Verbindung mit entsprechend dimensionierten, thermischen Speichern ein großes Potential zum Lastmanagement in Smart Grids und somit zur Netzintegration von Strom aus erneuerbaren Energien. Die im Projekt entwickelte Methodik zur Suche nach neuen Latentspeichermedien kann für ein breites Anwendungsfeld von Heiz- und Kühlanwendungen in Gebäuden bis hin zur Kraftwerkstechnik eingesetzt werden. Innerhalb der Fördermaßnahme „Anwendungsorientierte Forschung und Entwicklung zur nichtnuklearen Energieforschung“ im 6. Energieforschungsprogramm der Bundesregierung wurde durch die Projektarbeiten das Schwerpunktthema Energiespeicher (3.8) adressiert, wobei der Aspekt der Entwicklung neuer Materialien mit reduzierten Kosten für einen wirtschaftlichen Betrieb im Vordergrund stand. Speziell wurden dabei die Unterpunkte 3.8.4 Thermische Speicher zur Weiterentwicklung, Optimierung und Erprobung von PCM sowie 3.8.5 Übergeordnete Themen mit Modellen und Simulationswerkzeugen für die Auswahl und Bewertung neuer Speichermaterialien adressiert. Die Projektergebnisse besitzen aber auch Berührungspunkte mit den Schwerpunkten 3.12 Energieeffizienz in Industrie, Gewerbe, Handel und Dienstleistungen sowie 3.4 Solarthermische Kraftwerke, da mit der entwickelten Screening-Methode für diese Anwendungsfälle neue Wärmespeichermaterialien auf der Basis wasserfreier Salze mit höheren Prozesstemperaturen gefunden werden können. Durch den Einsatz von Methoden zur Modellierung und Simulation von Prozessen erfolgt gleichermaßen die Umsetzung einer energie- und ressourcenschonenden Forschungstätigkeit. Das im Projekt entwickelte Vorgehen hilft dabei, einen äußerst sparsamen Einsatz von Chemikalien, eine niedrige Belastung der Umwelt durch verringerten Entsorgungsaufwand der verbrauchten Stoffe sowie einen deutlich geringeren Aufwand und Energieeinsatz für die Messtechnik zu ermöglichen. Damit wurde zugleich das Schwerpunktthema 3.8.5 Modelle und Simulationswerkzeuge für die Auswahl und Bewertung neuer Speichermaterialien angesprochen. KW - Latentwärmespeicher KW - Phase diagram KW - Thermodynamic modeling KW - Thermal analysis Y1 - 2021 UR - https://www.tib.eu/de/suchen/id/TIBKAT:177643451X/ U6 - https://doi.org/10.2314/KXP:177643451X PB - TIB – Leibniz-Informationszentrum Technik und Naturwissenschaften CY - Hannover ER - TY - RPRT A1 - Thonicke, Kirsten A1 - Rahner, Eva A1 - Arneth, Almut A1 - Bartkowski, Bartosz A1 - Bonn, Aletta A1 - Döhler, Christian A1 - Finger, Robert A1 - Freitag, Jens A1 - Grosch, Rita A1 - Grossart, Hans-Peter A1 - Grützmacher, Kim A1 - Hartman Scholz, Amber A1 - Häuser, Christoph A1 - Hickler, Thomas A1 - Hölker, Franz A1 - Jähnig, Sonja C. A1 - Jeschke, Jonathan A1 - Kassen, Rees A1 - Kastner, Thomas A1 - Kramer-Schadt, Stephanie A1 - Krug, Cornelia A1 - Lakner, Sebastian A1 - Loft, Lasse A1 - Matzdorf, Bettina A1 - Meakins, Felicity A1 - De Meester, Luc A1 - Monaghan, Michael T. A1 - Müller, Daniel A1 - Overmann, Jörg A1 - Quaas, Martin A1 - Radchuk, Viktoriia A1 - Reyer, Christopher A1 - Roos, Christian A1 - Scholz, Imme A1 - Schroer, Sibylle A1 - Sioen, Giles Bruno A1 - Sommer, Simone A1 - Sommerwerk, Nike A1 - Tockner, Klement A1 - Turk, Zachary A1 - Warner, Barbara A1 - Wätzold, Frank A1 - Wende, Wolfgang A1 - Veenstra, Tonjes A1 - Voort, Hein van de T1 - 10 Must-Knows aus der Biodiversitätsforschung Y1 - 2022 U6 - https://doi.org/10.5281/zenodo.6257476 PB - Potsdam-Institut für Klimafolgenforschung e.V. (PIK) CY - Potsdam ER - TY - GEN A1 - Neyret, Margot A1 - Le Provost, Gaëtane A1 - Boesing, Andrea Larissa A1 - Schneider, Florian D. A1 - Baulechner, Dennis A1 - Bergmann, Joana A1 - Vries, Franciska T. de A1 - Fiore-Donno, Anna Maria A1 - Geisen, Stefan A1 - Goldmann, Kezia A1 - Merges, Anna A1 - Saifutdinov, Ruslan A. A1 - Simons, Nadja K. A1 - Tobias, Joseph A. A1 - Zaitsev, Andrey S. A1 - Gossner, Martin M. A1 - Jung, Kirsten A1 - Kandeler, Ellen A1 - Krauss, Jochen A1 - Penone, Caterina A1 - Schloter, Michael A1 - Schulz, Stefanie A1 - Staab, Michael A1 - Wolters, Volkmar A1 - Apostolakis, Antonios A1 - Birkhofer, Klaus A1 - Boch, Steffen A1 - Boeddinghaus, Runa S. A1 - Bolliger, Ralph A1 - Bonkowski, Michael A1 - Buscot, François A1 - Dumack, Kenneth A1 - Fischer, Markus A1 - Gan, Huei Ying A1 - Heinze, Johannes A1 - Hölzel, Norbert A1 - John, Katharina A1 - Klaus, Valentin H. A1 - Kleinebecker, Till A1 - Marhan, Sven A1 - Müller, Jörg A1 - Renner, Swen C. A1 - Rillig, Matthias C. A1 - Schenk, Noëlle V. A1 - Schöning, Ingo A1 - Schrumpf, Marion A1 - Seibold, Sebastian A1 - Socher, Stephanie A. A1 - Solly, Emily F. A1 - Teuscher, Miriam A1 - Kleunen, Mark van A1 - Wubet, Tesfaye A1 - Manning, Peter T1 - A slow-fast trait continuum at the whole community level in relation to land-use intensification T2 - Nature Communications N2 - AbstractOrganismal functional strategies form a continuum from slow- to fast-growing organisms, in response to common drivers such as resource availability and disturbance. However, whether there is synchronisation of these strategies at the entire community level is unclear. Here, we combine trait data for 2800 above- and belowground taxa from 14 trophic guilds spanning a disturbance and resource availability gradient in German grasslands. The results indicate that most guilds consistently respond to these drivers through both direct and trophically mediated effects, resulting in a ‘slow-fast’ axis at the level of the entire community. Using 15 indicators of carbon and nutrient fluxes, biomass production and decomposition, we also show that fast trait communities are associated with faster rates of ecosystem functioning. These findings demonstrate that ‘slow’ and ‘fast’ strategies can be manifested at the level of whole communities, opening new avenues of ecosystem-level functional classification. KW - General Physics and Astronomy KW - General Biochemistry KW - General Chemistry KW - Multidisciplinary KW - Genetics and Molecular Biology Y1 - 2024 U6 - https://doi.org/10.1038/s41467-024-45113-5 SN - 2041-1723 VL - 15 IS - 1 ER - TY - GEN A1 - Eisenhauer, Nico A1 - Frank, Karin A1 - Weigelt, Alexandra A1 - Bartkowski, Bartosz A1 - Beugnon, Rémy A1 - Liebal, Katja A1 - Mahecha, Miguel A1 - Quaas, Martin A1 - Al‐Halbouni, Djamil A1 - Bastos, Ana A1 - Bohn, Friedrich J. A1 - Brito, Mariana Madruga de A1 - Denzler, Joachim A1 - Feilhauer, Hannes A1 - Fischer, Rico A1 - Fritsche, Immo A1 - Guimaraes‐Steinicke, Claudia A1 - Hänsel, Martin A1 - Haun, Daniel B. M. A1 - Herrmann, Hartmut A1 - Huth, Andreas A1 - Kalesse‐Los, Heike A1 - Koetter, Michael A1 - Kolleck, Nina A1 - Krause, Melanie A1 - Kretschmer, Marlene A1 - Leitão, Pedro J. A1 - Masson, Torsten A1 - Mora, Karin A1 - Müller, Birgit A1 - Peng, Jian A1 - Pöhlker, Mira L. A1 - Ratzke, Leonie A1 - Reichstein, Markus A1 - Richter, Solveig A1 - Rüger, Nadja A1 - Sánchez‐Parra, Beatriz A1 - Shadaydeh, Maha A1 - Sippel, Sebastian A1 - Tegen, Ina A1 - Thrän, Daniela A1 - Umlauft, Josefine A1 - Wendisch, Manfred A1 - Wolf, Kevin A1 - Wirth, Christian A1 - Zacher, Hannes A1 - Zaehle, Sönke A1 - Quaas, Johannes T1 - A belowground perspective on the nexus between biodiversity change, climate change, and human well‐being T2 - Journal of Sustainable Agriculture and Environment N2 - Soil is central to the complex interplay among biodiversity, climate, and society. This paper examines the interconnectedness of soil biodiversity, climate change, and societal impacts, emphasizing the urgent need for integrated solutions. Human‐induced biodiversity loss and climate change intensify environmental degradation, threatening human well‐being. Soils, rich in biodiversity and vital for ecosystem function regulation, are highly vulnerable to these pressures, affecting nutrient cycling, soil fertility, and resilience. Soil also crucially regulates climate, influencing energy, water cycles, and carbon storage. Yet, climate change poses significant challenges to soil health and carbon dynamics, amplifying global warming. Integrated approaches are essential, including sustainable land management, policy interventions, technological innovations, and societal engagement. Practices like agroforestry and organic farming improve soil health and mitigate climate impacts. Effective policies and governance are crucial for promoting sustainable practices and soil conservation. Recent technologies aid in monitoring soil biodiversity and implementing sustainable land management. Societal engagement, through education and collective action, is vital for environmental stewardship. By prioritizing interdisciplinary research and addressing key frontiers, scientists can advance understanding of the soil biodiversity–climate change–society nexus, informing strategies for environmental sustainability and social equity. Y1 - 2024 U6 - https://doi.org/10.1002/sae2.12108 SN - 2767-035X VL - 3 IS - 2 PB - Wiley ER - TY - RPRT A1 - Schmidt, Peer A1 - Giese, Marie A1 - Heinemann, Robert A1 - Nawdiyal, Amruta A1 - Knorr, Monika A1 - Breitkopf, Cornelia A1 - Schneegans, Marcel Felix A1 - Pinnau, Sebastian A1 - Lorenz, Tommy A1 - Mickoleit, Erik A1 - to Baben, Moritz A1 - Keuter, Philipp A1 - Müller, Michael A1 - Sergeev, Dmitry A1 - Ewaznezhad Fard, Darya A1 - Morsa, Amedeo A1 - Rhys, Dominic Jacob A1 - Yazhenskikh, Elena T1 - PCM-Screening-2 : Evaluierung eutektischer Gemische für den Einsatz als PCM : thermodynamische Modellierung und experimentelle Methoden - 2 T2 - Deutsche Forschungsberichte N2 - Durch den Einsatz von Wärme- und Kältespeichern in Gebäuden, Industrieanlagen und Kraftwerken können Lastschwankungen reduziert und die Anlageneffizienz verbessert werden. Latentwärmespeicher (PCM) ermöglichen durch Ausnutzung einer fest-flüssig Phasenumwandlung hohe Speicherdichten bei geringen Temperaturdifferenzen. Die Verfügbarkeit geeigneter und kostengünstiger PCM’s ist derzeit noch eingeschränkt. Ein Screening geeigneter Stoffsysteme zur Bildung multinärer Eutektika durch thermodynamische Modellierung der Phasengleichgewichte erlaubt fundierte Vorhersagen zur Zusammensetzung eutektischer Gemische, ihren Schmelztemperaturen und -enthalpien. Auf Basis der Literatur, umfangreicher experimenteller Untersuchungen und Simulationen wurde im Projekt eine im Temperaturbereich nicht eingeschränkte thermochemische Datenbank für das komplexe Stoffsystem Na+, K+, Ca2+, Mg2+ // Cl−, NO3−, SO4_2−, CO3_2− // H2O geschaffen, die eine Auswahl neuer PCM mit optimalen thermodynamischen Eigenschaften für spezifische Prozessanforderungen auf Basis von in Deutschland in großen Mengen verfügbaren, preiswerten Rohstoffen ermöglicht. Weiterhin wurde ein CalPhaD-basiertes Viskositätsmodell, ein Screening-Verfahren inkl. Webserver und intuitive Visualisierungsmöglichkeiten hochkomponentiger Systeme entwickelt. Mittels eines Screenings erfolgte eine Vorauswahl von potentiell als PCM geeigneten Gemischen, die umfangreich charakterisiert wurden. Auf Basis der vielversprechenden Speicherdichten und der niedrigen Materialkosten wird erwartet, dass ein oder mehrere dieser identifizierten PCMs in die Anwendung als thermische Speicher gebracht werden können. N2 - The use of heat and cold storage systems in buildings, industrial plants, and power stations can reduce load fluctuations and improve plant efficiency. Latent heat storage systems (phase change materials - PCM) enable high storage densities with low temperature differences by exploiting a solid-liquid phase transition. The availability of suitable and cost-effective PCMs is currently still limited. Screening suitable material systems for the formation of multinary eutectics through thermodynamic modeling of phase equilibria allows well-founded predictions to be made about the composition of eutectic mixtures, their melting temperatures, and enthalpies. Based on the literature, extensive experimental investigations, and simulations, the project created a thermochemical database for the complex material system Na+, K+, Ca2+, Mg2+ // Cl−, NO3−, SO4_2−, CO3_2− // H2O was created, which enables the selection of new PCMs with optimal thermodynamic properties for specific process requirements based on inexpensive raw materials available in large quantities in Germany. Furthermore, a CalPhaD-based viscosity model, a screening procedure including a web server, and intuitive visualization options for highly component systems were developed. A screening process was used to preselect mixtures potentially suitable as PCMs, which were then extensively characterized. Based on the promising storage densities and low material costs, it is expected that one or more of these identified PCMs can be put into application as thermal storage. KW - PCM KW - Latenwärmespeicher KW - Eutektische Gemische KW - Thermodynamische Daten KW - Thermodynamische Modellierung KW - Anorganische Salzhydrate KW - Anorganische Salze Y1 - 2026 UR - https://oa.tib.eu/renate/handle/123456789/29435 U6 - https://doi.org/10.34657/28504 ER -