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Research data keyboard_double_arrow_right Dataset 2024Publisher:Zenodo Alexander-Haw, Abigail; Dütschke, Elisabeth; Helferich, Marvin; Preuß, Sabine; Schleich, Joachim;This dataset and codebook correspond to the initial round of survey data gathered in Germany in 2022, within the project FULFILL - Fundamental Decarbonisation Through Sufficiency By Lifestyle Changes. As part of Work Package 3 (WP3) in the FULFILL project, we collected quantitative data from six countries: Denmark, France, Germany, Italy, Latvia, and India. In the first round of the survey, we recruited a representative sample of approximately 2000 households in each country, taking into account both the individual and household perspectives. The survey includes a quantitative assessment of the carbon footprint in various domains of life, such as housing, mobility, and diet. In addition to this, the survey also measures socio-economic factors such as age, gender, income, education, household size, life stage, and political orientation. Furthermore, the survey includes measures of quality of life, encompassing aspects such as health and well-being, environmental quality, financial security, and comfort.
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For further information contact us at helpdesk@openaire.euResearch data keyboard_double_arrow_right Dataset 2021Publisher:Universität Hamburg Authors: Schrage, Stephanie;Qualitative data set, containing formal and informal interviews field notes from non-participant observations archival documents from a case study of sustainability implementation (spec. living wages, BSCI, DETOX) along a footwear value chain between Germany and China. Data was collected with four parties of the value chain between 2015 and 2020. Languages: German, English, Mandarin (interpreted) Collected and analyzed for the dissertation (doc. rer. pol.) by Stephanie Schrage at Universität Hamburg (defended in October 2020)
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Boer, Lukas;Diese Dissertation beantwortet verschiedene politikrelevante ökonomische Fragen in den Bereichen Handelspolitik, Geldpolitik, sowie Rohstoffmärkte und Energieökonomik mit Hilfe von strukturellen Vektorautoregressionsmodellen (SVAR). SVARs stellen eine effektive Möglichkeit dar, die Beziehungen zwischen verschiedenen makroökonomischen und/oder Finanzmarkt-Variablen zu modellieren und werden verwendet, um die dynamischen kausalen Effekte von ökonomischen Schocks zu schätzen. Für jede ökonomische Fragestellung wird eine Identifikationsstrategie angewandt, die auf die betrachteten Daten und ihre statistischen Eigenschaften sowie die zugrundeliegenden Annahmen über ökonomische Mechanismen zwischen den betrachteten Zeitreihen zugeschnitten ist. Im Einzelnen besteht diese Dissertation aus vier Kapiteln. In den ersten beiden Kapiteln werden die Auswirkungen von Handelspolitik auf Finanzmärkte und auf die Makroökonomie geschätzt. Das dritte Kapitel liefert einen methodischen Beitrag zur SVAR-Literatur, der in einer Anwendung zu den Effekten von Geldpolitik dargestellt wird. Das letzte Kapitel verlässt die Felder der Handels- und Geldpolitik und wendet sich Rohstoffmärkten und der Energiewirtschaft zu, stützt sich dabei aber ebenfalls auf Zeitreihenmethoden. Es analysiert die Rolle von Metallen in der Energiewende. This dissertation answers various policy relevant economic questions in the fields of trade policy, monetary policy, and commodity markets and energy economics using structural vector autoregression (SVAR) models. SVARs constitute a parsimonious way to model the relations between different macroeconomic and/or financial variables and they are used to estimate the dynamic causal effects of economic shocks. For each economic question, this dissertation applies an identification strategy that is tailored to the relevant data and its statistical properties as well as the underlying assumptions about economic mechanisms among the regarded time series. Specifically, this dissertation consists of four chapters. The first two chapters estimate the effects of trade policy on financial markets and on the macroeconomy. The third chapter makes a methodological contribution to the SVAR literature in an application to monetary policy shocks. The final chapter moves away from trade and monetary policy to commodity markets and energy economics but also relies on time series methods. It analyzes the role of metals for the clean energy transition.
Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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visibility 117visibility views 117 download downloads 119 Powered bymore_vert Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research , Article 2022Embargo end date: 14 Jun 2022 GermanyPublisher:TUHH Universitätsbibliothek Authors: Körner, Ina; Walk, Steffen; Lüssenhop, Phillipp;doi: 10.15480/882.4383
handle: 11420/12877
Die Energiewende einschließlich der Substitution von russischem Erdgas ist eine große Herausforderung, welche fördernde Maßnahmen in vielen Bereichen des Energiesektors verlangt. Einer dieser Bereiche ist die Erzeugung von Biomethan aus häuslichen Küchenabfällen. Diese beinhalten vorwiegend Lebensmittelabfälle. Ein großes ungenutztes Potenzial zu deren Nutzung ist vorhanden. Bürger, Abfallentsorger und Politik können beitragen, dieses zu realisieren. The energy transition, including the substitution of Russian natural gas, is a major challenge that requires supportive measures in many areas of the energy sector. One of these areas is the production of biomethane from domestic kitchen waste. This mainly includes food waste. There is a large untapped potential for its use. Citizens, waste management companies and politicians can contribute to realise this.
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visibility 203visibility views 203 download downloads 542 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2022Publisher:Zenodo Funded by:EC | FCH2RAILEC| FCH2RAILKonrad, Marcel; Pagenkopf, Johannes; J��ger, Victoria Carolin; Dittus, Holger; Dura, Georg; Garbar, Alexander; Maa��, Jan-Christoph;The project partners Duisport AG, the DLR Institute of Vehicle Concepts and the Center for Fuel Cell Technology (ZBT) have investigated the feasibility of locomotives with hydrogen fuel cell hybrid powertrains (FCH) for typical use by Duisport Rail (dpr) in the Duisburg port area and on the public rail network.
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visibility 94visibility views 94 download downloads 81 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2021 GermanyPublisher:Universität Hohenheim Authors: Butemann, Hendrik;Eine der wichtigsten Maßnahmen im Kampf gegen den Klimawandel stellt der Umstieg von fossilen auf erneuerbare Energien dar. Viele Länder haben es sich daher zum Ziel gemacht, den Anteil der erneuerbaren Energien zur Stromerzeugung zu erhöhen. In Deutschland betrug der Anteil im Jahr 2019 40,2 %, wobei Biomasse 20,6 % davon ausmachte. Zu dieser Kategorie gehören Biogasanlagen, die im Gegensatz zu anderen Quellen erneuerbarer Energie den Vorteil haben, nicht von bestimmten Wetterbedingungen abhängig zu sein. Sie gelten als flexible Option zur Stromerzeugung, weil sie auch Strom produzieren können, wenn weder die Sonne scheint noch Wind weht. Als die ersten Biogasanlagen in Betrieb genommen wurden, konnten die Erlöse aus der Stromproduktion maximiert werden, indem das der Biogasanlage zugehörige Blockheizkraftwerk (BHKW) durchgängig Strom erzeugte. Um die Vorteile der Flexibilität von Biogasanlagen auszunutzen, führte der Gesetzgeber in Deutschland Prämien ein, die Anreize zur Stromproduktion in Zeiten eines geringen Angebots aus anderen erneuerbaren Energiequellen beinhalten. Seitdem können Biogasanlagenbetreiber ihre Erlöse maximieren, wenn das BHKW bedarfsorientiert Strom produziert, d. h. im Start- Stopp-Betrieb. Eine Vielzahl an Starts und Stopps des BHKW verursacht jedoch einen erhöhten Verschleiß und muss bei der langfristigen Planung der Stromproduktion einer Biogasanlage berücksichtigt werden. Das Ziel dieser Arbeit ist es daher, mithilfe von Methoden des Operations Researchs zyklische Pläne zur Stromproduktion von Biogasanlagen zu entwickeln, die den Verschleiß des BHKW und die Zeitpunkte und Kosten für Instandhaltungsmaßnahmen berücksichtigen, um Betreiber von Biogasanlagen bei der Erlösmaximierung zu unterstützen. Dazu erfolgt zunächst eine Einordnung der Stromproduktionsplanung von Biogasanlagen in die Planungsaufgaben entlang der biomassebasierten Supply Chain. Anschließend werden die Grundlagen zu Biogasanlagen erläutert, zu denen die Bedeutung dieser in Deutschland, die Funktionsweise, die Wartung ...
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Endreson, Thorunn Gullaksen;Norwegian contemporary climate fiction often portrays humans as in denial of climate change. In Erlend Nødtvedt’s transgressive novel Vestlandet (2017), an alternative story is presented. In contrast to conventional climate change denial, the two protagonists turn the situation upside down and literally celebrate death and climate change and the exceptional Western Norwegian »sublime« landscape. Drawing on Mikhail Bakhtin’s concept of laughter and the carnivalesque, I will investigate Vestlandet as a response to a world in climate crisis, and thereby transcending the ecocritical reluctance to engage with laughter. Environmental humor offers an alternative vision, a possibility to see ourselves from another perspective. Vestlandet contributes to the creation of new climate change narratives and communicates potential for change, but there is no guarantee that laughter will lead to increased awareness and action. In der zeitgenössischen norwegischen Klimaliteratur wird der Mensch oft als Leugner des Klimawandels dargestellt. In Erlend Nødtvedts transgressivem Roman Vestlandet (2017) wird eine alternative Geschichte präsentiert. Im Gegensatz zur herkömmlichen Leugnung des Klimawandels stellen die beiden Protagonisten die Situation auf den Kopf und feiern buchstäblich den Tod, den Klimawandel und die außergewöhnliche westnorwegische »erhabene « Landschaft. In Anlehnung an Mikhail Bakhtins Konzept des Lachens und des Karnevalesken werde ich Vestlandet als Antwort auf eine Welt in der Klimakrise untersuchen und dabei die ökokritische Zurückhaltung gegenüber dem Lachen überwinden. Umwelthumor bietet eine alternative Vision, eine Möglichkeit, uns selbst aus einer anderen Perspektive zu sehen. Vestlandet trägt zur Schaffung neuer Erzählungen über den Klimawandel bei und vermittelt das Potenzial für Veränderungen, gibt aber keine Garantie dafür, dass Lachen zu mehr Bewusstsein und Handeln führt.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Getzin, Sofia; Witte, Mira;During a survey in September 2010 in Tjärnö, Sweden, we examined differences in the occurrence of the barnacle Semibalanus balanoides at rocky shores. We sought to proof whether there were differences in the density of S. balanoides in habitats depending either on wave energy or on orientation of the rocks facing north and south respectively. Data analysis showed no differences in occurrence of the barnacles depending on wave energy in the habitat. In contrast there is a significant difference between examined rock faces with opposite orientation. Habitats with northerly orientation harboured greatly more individuals of S. balanoides than southerly orientated habitats. These results indicate that several factors influence the occurrence of barnacles in habitats connected to orientation. We suggest that there is a correlation between solar exposure, which influences thermal stress and the risk of desiccation and the frequency of occurrence of S. balanoides. Bei einer Untersuchung im September 2010 in Tjärnö, Schweden, untersuchten wir Unterschiede im Vorkommen der Seepocken Semibalanus balanoides an felsigen Ufern. Wir versuchten zu beweisen, ob es Unterschiede in der Dichte von S. balanoides in Habitaten gibt, die entweder von der Wellenenergie oder von der Ausrichtung der Gesteine nach Norden bzw. Süden abhängen. Die Datenanalyse zeigte keine Unterschiede im Vorkommen der Seepocken in Abhängigkeit von der Wellenenergie im Habitat. Im Gegensatz dazu gibt es einen signifikanten Unterschied zwischen untersuchten Felswänden mit entgegengesetzter Orientierung. Lebensräume mit nördlicher Ausrichtung beherbergten deutlich mehr Individuen von S. balanoides als südlich orientierte Lebensräume. Diese Ergebnisse weisen darauf hin, dass mehrere Faktoren das Vorkommen von Seepocken in orientierungsgebundenen Habitaten beeinflussen. Wir vermuten, dass es einen Zusammenhang zwischen der Sonneneinstrahlung, die den thermischen Stress und das Austrocknungsrisiko beeinflusst, und der Häufigkeit des Auftretens von S. balanoides gibt. Peer Reviewed
Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinArticle . 2021 . Peer-reviewedData sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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visibility 118visibility views 118 download downloads 68 Powered bymore_vert Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinArticle . 2021 . Peer-reviewedData sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2021Publisher:Zenodo Authors: Plankenbühler, Thomas; Kolb, Sebastian; Herkendell, Katharina; Karl, Jürgen;This study summarises the scientific state of the art for the production, transportation, storage and reconversion of green hydrogen concisely and in the form of fact sheets. The aim is to provide a compact and independent overview that can serve as a guideline and basis of decision-making for future investments in the energy industry. The study discusses 47 technologies with different technology readiness levels and compares them in terms of technical and economic performance indicators. A set of uniform boundary conditions common to the energy industry allows to ensure comparability of economically relevant data (especially hydrogen production costs). In the study, technology profiles describe technologies with high technical relevance and availability as well as technologies with high technical potential but currently low availability. In each case, the state of development, operating principle, market situation as well as technical and economic risks are discussed. Additionally, a technology radar briefly presents technologies with currently unclear technical potential or technologies that are not yet available. Eine Studie im Auftrag der N-ERGIE Aktiengesellschaft
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022Embargo end date: 29 Mar 2022 GermanyPublisher:Technische Universität Berlin Authors: Halstenberg, Friedrich Andreas;Induziert durch Digitalisierung und Servitisierung bieten Unternehmen in zunehmendem Maße Systeme aus vernetzten mechatronischen Produkten, Software und Dienstleistungen an: sogenannte Smart Product Service Systems (Smart PSS). Zur Erfüllung der Sustainability Development Goals der Vereinten Nationen, insbesondere des Ziels 9 „nachhaltiger Konsum und Produktion“, müssen diese Systeme gemäß dem Leitbild einer Circular Economy (CE) gestaltet werden. Smart-circular PSS verfolgen nachhaltige Geschäftsmodelle und verstärken Strategien der CE durch datengetriebene Funktionen. Die Entwicklung dieser Systeme stellt Unternehmen vor große Herausforderungen. Ungeklärt ist bislang, wie Teams bei der Entwicklung von Smart-circular PSS sachgerecht methodisch unterstützt werden können. Diese Arbeit begegnet diesen Beobachtungen mit der Forschungshypothese, dass sich Systemarchitekturen von Smart-circular PSS durch geeignete Methoden des Modellbasierten Systems Engineerings (MBSE) so entwerfen lassen, dass die Systeme effektiv und effizient zu einer CE beitragen. Zu ihrer Verifizierung wurde als übergeordneter Forschungsansatz die Design Research Methodology (DRM) angewendet. Zunächst erfolgte die Forschungsklärung mithilfe von Expert*innenworkshops sowie durch eine MBSE-Reifegradanalyse in einem industriellen Unternehmen. Die hier identifizierten Handlungsfelder wurden mittels Systematischen Literaturanalysen (SLRs) abgesichert und ausgewählt. Aufbauend auf den gewonnenen Erkenntnissen wurde die Methodik zur Definition von Smart-circular PSS-Systemarchitekturen (MESSIAH) entwickelt, die Entwicklungsteams bei der Konzeptionierung von Smart-circular PSS unterstützt. Die Methode beinhaltet eine Modellierungsgenerik, eine gerichtete Methode sowie einen Baukasten zum schnellen Prototypisieren von Services. MESSIAH wurde mithilfe einer Comprehensive Descrip-tive Study anhand von fünf Studien evaluiert. Die Forschungshypothese konnte im Rahmen der Evaluierung verifiziert werden. Somit zeigt diese Arbeit erstmals Wege auf, wie Strategien der CE mithilfe des MBSE bei der Entwicklung von Smart-circular PSS Systemarchitekturen berücksichtigt werden können. MESSIAH ermöglicht die Modellierung einer interdisziplinären Systemarchitektur, die mechatronische Produkte, Software und Dienstleistungen integriert. Zur Modellierung von CE-relevanten Services wurden zwei neue prozessorientierte Modelltypen erfolgreich mit bestehenden Modellierungstechniken des MBSE kombiniert. Durch die Evaluierungsstudien konnte ein zufriedenstellender Stand der Akzeptanz und wahrgenommenen Nützlichkeit der Methodik nachgewiesen werden. Allerdings wurden Verbesserungspotentiale hinsichtlich ihrer Benutzbarkeit festgestellt. In weiterer For-schung wird es vonnöten sein, die Qualität und die Quantität der Anwendungsvalidierungen zu erhöhen. Zu diesem Zweck wird die Durchführung von Langzeitstudien sowie Anwendungen an industriellen Systemen in einem weiteren Einsatzspektrum und in weiteren Branchen empfohlen. In response to calls for digitization and servitization, businesses increasingly offer complex systems consisting of connected mechatronic products, software elements and services: so-called Smart Product-Service-Systems (Smart PSS). In order to meet the United Nations Sustainability Development Goals and in particular Goal 9 "Sustainable Consumption and Production", these systems must be compatible with the tenets of a Circular Economy (CE). The development of these systems presents businesses with major challenges. It remains unclear how engineering teams can be supported methodologically in developing Smart-circular PSS. This dissertation meets these challenges with the research hypothesis that suitable methods of Model-based Systems Engineering (MBSE) can aid in the development of Smart-circular PSS architectures, which effectively and efficiently contribute to a CE. The investigation applies Design Research Methodology (DRM) as an overarching research approach for hypothesis verification. Initially, expert workshops and an MBSE maturity analysis in an industrial enterprise served to clarify the research objective. Systematic Literature Reviews (SLRs) validated and detailed the fields of action identified. Based on the findings, the Methodology for Smart-circular PSS Architecture Definition (MESSIAH) was developed, which supports development teams in the design of Smart-circular PSS. The method includes a modeling framework, a method and a construction kit for prototyping services. MESSIAH was evaluated by means of a Comprehensive Descriptive Study based on five evaluation studies. The evaluation verified the research hypothesis. Consequently, this research explores how the development of Smart PSS with the help of MBSE can be useful to CE-strategies. MESSIAH enabled the management of system complexity by using an interdisciplinary system architecture that integrates the development of mechatronic products, software and services. In order to de-velop CE-relevant services, two new types of models were successfully integrated into existing modelling techniques of MBSE. User studies indicated a satisfactory level of user acceptance and perceived usefulness of the methodology, but also served to identify potential for improve-ment with regard to its ease of use. In further research it will be necessary to increase the quality and quantity of application validations in further application scenarios and other industry branches. For this purpose, the dissertation recommends long-term studies and applications on further industrial systems.
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Research data keyboard_double_arrow_right Dataset 2024Publisher:Zenodo Alexander-Haw, Abigail; Dütschke, Elisabeth; Helferich, Marvin; Preuß, Sabine; Schleich, Joachim;This dataset and codebook correspond to the initial round of survey data gathered in Germany in 2022, within the project FULFILL - Fundamental Decarbonisation Through Sufficiency By Lifestyle Changes. As part of Work Package 3 (WP3) in the FULFILL project, we collected quantitative data from six countries: Denmark, France, Germany, Italy, Latvia, and India. In the first round of the survey, we recruited a representative sample of approximately 2000 households in each country, taking into account both the individual and household perspectives. The survey includes a quantitative assessment of the carbon footprint in various domains of life, such as housing, mobility, and diet. In addition to this, the survey also measures socio-economic factors such as age, gender, income, education, household size, life stage, and political orientation. Furthermore, the survey includes measures of quality of life, encompassing aspects such as health and well-being, environmental quality, financial security, and comfort.
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For further information contact us at helpdesk@openaire.euResearch data keyboard_double_arrow_right Dataset 2021Publisher:Universität Hamburg Authors: Schrage, Stephanie;Qualitative data set, containing formal and informal interviews field notes from non-participant observations archival documents from a case study of sustainability implementation (spec. living wages, BSCI, DETOX) along a footwear value chain between Germany and China. Data was collected with four parties of the value chain between 2015 and 2020. Languages: German, English, Mandarin (interpreted) Collected and analyzed for the dissertation (doc. rer. pol.) by Stephanie Schrage at Universität Hamburg (defended in October 2020)
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Boer, Lukas;Diese Dissertation beantwortet verschiedene politikrelevante ökonomische Fragen in den Bereichen Handelspolitik, Geldpolitik, sowie Rohstoffmärkte und Energieökonomik mit Hilfe von strukturellen Vektorautoregressionsmodellen (SVAR). SVARs stellen eine effektive Möglichkeit dar, die Beziehungen zwischen verschiedenen makroökonomischen und/oder Finanzmarkt-Variablen zu modellieren und werden verwendet, um die dynamischen kausalen Effekte von ökonomischen Schocks zu schätzen. Für jede ökonomische Fragestellung wird eine Identifikationsstrategie angewandt, die auf die betrachteten Daten und ihre statistischen Eigenschaften sowie die zugrundeliegenden Annahmen über ökonomische Mechanismen zwischen den betrachteten Zeitreihen zugeschnitten ist. Im Einzelnen besteht diese Dissertation aus vier Kapiteln. In den ersten beiden Kapiteln werden die Auswirkungen von Handelspolitik auf Finanzmärkte und auf die Makroökonomie geschätzt. Das dritte Kapitel liefert einen methodischen Beitrag zur SVAR-Literatur, der in einer Anwendung zu den Effekten von Geldpolitik dargestellt wird. Das letzte Kapitel verlässt die Felder der Handels- und Geldpolitik und wendet sich Rohstoffmärkten und der Energiewirtschaft zu, stützt sich dabei aber ebenfalls auf Zeitreihenmethoden. Es analysiert die Rolle von Metallen in der Energiewende. This dissertation answers various policy relevant economic questions in the fields of trade policy, monetary policy, and commodity markets and energy economics using structural vector autoregression (SVAR) models. SVARs constitute a parsimonious way to model the relations between different macroeconomic and/or financial variables and they are used to estimate the dynamic causal effects of economic shocks. For each economic question, this dissertation applies an identification strategy that is tailored to the relevant data and its statistical properties as well as the underlying assumptions about economic mechanisms among the regarded time series. Specifically, this dissertation consists of four chapters. The first two chapters estimate the effects of trade policy on financial markets and on the macroeconomy. The third chapter makes a methodological contribution to the SVAR literature in an application to monetary policy shocks. The final chapter moves away from trade and monetary policy to commodity markets and energy economics but also relies on time series methods. It analyzes the role of metals for the clean energy transition.
Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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visibility 117visibility views 117 download downloads 119 Powered bymore_vert Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research , Article 2022Embargo end date: 14 Jun 2022 GermanyPublisher:TUHH Universitätsbibliothek Authors: Körner, Ina; Walk, Steffen; Lüssenhop, Phillipp;doi: 10.15480/882.4383
handle: 11420/12877
Die Energiewende einschließlich der Substitution von russischem Erdgas ist eine große Herausforderung, welche fördernde Maßnahmen in vielen Bereichen des Energiesektors verlangt. Einer dieser Bereiche ist die Erzeugung von Biomethan aus häuslichen Küchenabfällen. Diese beinhalten vorwiegend Lebensmittelabfälle. Ein großes ungenutztes Potenzial zu deren Nutzung ist vorhanden. Bürger, Abfallentsorger und Politik können beitragen, dieses zu realisieren. The energy transition, including the substitution of Russian natural gas, is a major challenge that requires supportive measures in many areas of the energy sector. One of these areas is the production of biomethane from domestic kitchen waste. This mainly includes food waste. There is a large untapped potential for its use. Citizens, waste management companies and politicians can contribute to realise this.
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visibility 203visibility views 203 download downloads 542 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2022Publisher:Zenodo Funded by:EC | FCH2RAILEC| FCH2RAILKonrad, Marcel; Pagenkopf, Johannes; J��ger, Victoria Carolin; Dittus, Holger; Dura, Georg; Garbar, Alexander; Maa��, Jan-Christoph;The project partners Duisport AG, the DLR Institute of Vehicle Concepts and the Center for Fuel Cell Technology (ZBT) have investigated the feasibility of locomotives with hydrogen fuel cell hybrid powertrains (FCH) for typical use by Duisport Rail (dpr) in the Duisburg port area and on the public rail network.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5281/zenodo.6274512&type=result"></script>'); --> </script>
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visibility 94visibility views 94 download downloads 81 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2021 GermanyPublisher:Universität Hohenheim Authors: Butemann, Hendrik;Eine der wichtigsten Maßnahmen im Kampf gegen den Klimawandel stellt der Umstieg von fossilen auf erneuerbare Energien dar. Viele Länder haben es sich daher zum Ziel gemacht, den Anteil der erneuerbaren Energien zur Stromerzeugung zu erhöhen. In Deutschland betrug der Anteil im Jahr 2019 40,2 %, wobei Biomasse 20,6 % davon ausmachte. Zu dieser Kategorie gehören Biogasanlagen, die im Gegensatz zu anderen Quellen erneuerbarer Energie den Vorteil haben, nicht von bestimmten Wetterbedingungen abhängig zu sein. Sie gelten als flexible Option zur Stromerzeugung, weil sie auch Strom produzieren können, wenn weder die Sonne scheint noch Wind weht. Als die ersten Biogasanlagen in Betrieb genommen wurden, konnten die Erlöse aus der Stromproduktion maximiert werden, indem das der Biogasanlage zugehörige Blockheizkraftwerk (BHKW) durchgängig Strom erzeugte. Um die Vorteile der Flexibilität von Biogasanlagen auszunutzen, führte der Gesetzgeber in Deutschland Prämien ein, die Anreize zur Stromproduktion in Zeiten eines geringen Angebots aus anderen erneuerbaren Energiequellen beinhalten. Seitdem können Biogasanlagenbetreiber ihre Erlöse maximieren, wenn das BHKW bedarfsorientiert Strom produziert, d. h. im Start- Stopp-Betrieb. Eine Vielzahl an Starts und Stopps des BHKW verursacht jedoch einen erhöhten Verschleiß und muss bei der langfristigen Planung der Stromproduktion einer Biogasanlage berücksichtigt werden. Das Ziel dieser Arbeit ist es daher, mithilfe von Methoden des Operations Researchs zyklische Pläne zur Stromproduktion von Biogasanlagen zu entwickeln, die den Verschleiß des BHKW und die Zeitpunkte und Kosten für Instandhaltungsmaßnahmen berücksichtigen, um Betreiber von Biogasanlagen bei der Erlösmaximierung zu unterstützen. Dazu erfolgt zunächst eine Einordnung der Stromproduktionsplanung von Biogasanlagen in die Planungsaufgaben entlang der biomassebasierten Supply Chain. Anschließend werden die Grundlagen zu Biogasanlagen erläutert, zu denen die Bedeutung dieser in Deutschland, die Funktionsweise, die Wartung ...
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Endreson, Thorunn Gullaksen;Norwegian contemporary climate fiction often portrays humans as in denial of climate change. In Erlend Nødtvedt’s transgressive novel Vestlandet (2017), an alternative story is presented. In contrast to conventional climate change denial, the two protagonists turn the situation upside down and literally celebrate death and climate change and the exceptional Western Norwegian »sublime« landscape. Drawing on Mikhail Bakhtin’s concept of laughter and the carnivalesque, I will investigate Vestlandet as a response to a world in climate crisis, and thereby transcending the ecocritical reluctance to engage with laughter. Environmental humor offers an alternative vision, a possibility to see ourselves from another perspective. Vestlandet contributes to the creation of new climate change narratives and communicates potential for change, but there is no guarantee that laughter will lead to increased awareness and action. In der zeitgenössischen norwegischen Klimaliteratur wird der Mensch oft als Leugner des Klimawandels dargestellt. In Erlend Nødtvedts transgressivem Roman Vestlandet (2017) wird eine alternative Geschichte präsentiert. Im Gegensatz zur herkömmlichen Leugnung des Klimawandels stellen die beiden Protagonisten die Situation auf den Kopf und feiern buchstäblich den Tod, den Klimawandel und die außergewöhnliche westnorwegische »erhabene « Landschaft. In Anlehnung an Mikhail Bakhtins Konzept des Lachens und des Karnevalesken werde ich Vestlandet als Antwort auf eine Welt in der Klimakrise untersuchen und dabei die ökokritische Zurückhaltung gegenüber dem Lachen überwinden. Umwelthumor bietet eine alternative Vision, eine Möglichkeit, uns selbst aus einer anderen Perspektive zu sehen. Vestlandet trägt zur Schaffung neuer Erzählungen über den Klimawandel bei und vermittelt das Potenzial für Veränderungen, gibt aber keine Garantie dafür, dass Lachen zu mehr Bewusstsein und Handeln führt.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Getzin, Sofia; Witte, Mira;During a survey in September 2010 in Tjärnö, Sweden, we examined differences in the occurrence of the barnacle Semibalanus balanoides at rocky shores. We sought to proof whether there were differences in the density of S. balanoides in habitats depending either on wave energy or on orientation of the rocks facing north and south respectively. Data analysis showed no differences in occurrence of the barnacles depending on wave energy in the habitat. In contrast there is a significant difference between examined rock faces with opposite orientation. Habitats with northerly orientation harboured greatly more individuals of S. balanoides than southerly orientated habitats. These results indicate that several factors influence the occurrence of barnacles in habitats connected to orientation. We suggest that there is a correlation between solar exposure, which influences thermal stress and the risk of desiccation and the frequency of occurrence of S. balanoides. Bei einer Untersuchung im September 2010 in Tjärnö, Schweden, untersuchten wir Unterschiede im Vorkommen der Seepocken Semibalanus balanoides an felsigen Ufern. Wir versuchten zu beweisen, ob es Unterschiede in der Dichte von S. balanoides in Habitaten gibt, die entweder von der Wellenenergie oder von der Ausrichtung der Gesteine nach Norden bzw. Süden abhängen. Die Datenanalyse zeigte keine Unterschiede im Vorkommen der Seepocken in Abhängigkeit von der Wellenenergie im Habitat. Im Gegensatz dazu gibt es einen signifikanten Unterschied zwischen untersuchten Felswänden mit entgegengesetzter Orientierung. Lebensräume mit nördlicher Ausrichtung beherbergten deutlich mehr Individuen von S. balanoides als südlich orientierte Lebensräume. Diese Ergebnisse weisen darauf hin, dass mehrere Faktoren das Vorkommen von Seepocken in orientierungsgebundenen Habitaten beeinflussen. Wir vermuten, dass es einen Zusammenhang zwischen der Sonneneinstrahlung, die den thermischen Stress und das Austrocknungsrisiko beeinflusst, und der Häufigkeit des Auftretens von S. balanoides gibt. Peer Reviewed
Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinArticle . 2021 . Peer-reviewedData sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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visibility 118visibility views 118 download downloads 68 Powered bymore_vert Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinArticle . 2021 . Peer-reviewedData sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2021Publisher:Zenodo Authors: Plankenbühler, Thomas; Kolb, Sebastian; Herkendell, Katharina; Karl, Jürgen;This study summarises the scientific state of the art for the production, transportation, storage and reconversion of green hydrogen concisely and in the form of fact sheets. The aim is to provide a compact and independent overview that can serve as a guideline and basis of decision-making for future investments in the energy industry. The study discusses 47 technologies with different technology readiness levels and compares them in terms of technical and economic performance indicators. A set of uniform boundary conditions common to the energy industry allows to ensure comparability of economically relevant data (especially hydrogen production costs). In the study, technology profiles describe technologies with high technical relevance and availability as well as technologies with high technical potential but currently low availability. In each case, the state of development, operating principle, market situation as well as technical and economic risks are discussed. Additionally, a technology radar briefly presents technologies with currently unclear technical potential or technologies that are not yet available. Eine Studie im Auftrag der N-ERGIE Aktiengesellschaft
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
visibility 67visibility views 67 download downloads 67 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5281/zenodo.7918271&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022Embargo end date: 29 Mar 2022 GermanyPublisher:Technische Universität Berlin Authors: Halstenberg, Friedrich Andreas;Induziert durch Digitalisierung und Servitisierung bieten Unternehmen in zunehmendem Maße Systeme aus vernetzten mechatronischen Produkten, Software und Dienstleistungen an: sogenannte Smart Product Service Systems (Smart PSS). Zur Erfüllung der Sustainability Development Goals der Vereinten Nationen, insbesondere des Ziels 9 „nachhaltiger Konsum und Produktion“, müssen diese Systeme gemäß dem Leitbild einer Circular Economy (CE) gestaltet werden. Smart-circular PSS verfolgen nachhaltige Geschäftsmodelle und verstärken Strategien der CE durch datengetriebene Funktionen. Die Entwicklung dieser Systeme stellt Unternehmen vor große Herausforderungen. Ungeklärt ist bislang, wie Teams bei der Entwicklung von Smart-circular PSS sachgerecht methodisch unterstützt werden können. Diese Arbeit begegnet diesen Beobachtungen mit der Forschungshypothese, dass sich Systemarchitekturen von Smart-circular PSS durch geeignete Methoden des Modellbasierten Systems Engineerings (MBSE) so entwerfen lassen, dass die Systeme effektiv und effizient zu einer CE beitragen. Zu ihrer Verifizierung wurde als übergeordneter Forschungsansatz die Design Research Methodology (DRM) angewendet. Zunächst erfolgte die Forschungsklärung mithilfe von Expert*innenworkshops sowie durch eine MBSE-Reifegradanalyse in einem industriellen Unternehmen. Die hier identifizierten Handlungsfelder wurden mittels Systematischen Literaturanalysen (SLRs) abgesichert und ausgewählt. Aufbauend auf den gewonnenen Erkenntnissen wurde die Methodik zur Definition von Smart-circular PSS-Systemarchitekturen (MESSIAH) entwickelt, die Entwicklungsteams bei der Konzeptionierung von Smart-circular PSS unterstützt. Die Methode beinhaltet eine Modellierungsgenerik, eine gerichtete Methode sowie einen Baukasten zum schnellen Prototypisieren von Services. MESSIAH wurde mithilfe einer Comprehensive Descrip-tive Study anhand von fünf Studien evaluiert. Die Forschungshypothese konnte im Rahmen der Evaluierung verifiziert werden. Somit zeigt diese Arbeit erstmals Wege auf, wie Strategien der CE mithilfe des MBSE bei der Entwicklung von Smart-circular PSS Systemarchitekturen berücksichtigt werden können. MESSIAH ermöglicht die Modellierung einer interdisziplinären Systemarchitektur, die mechatronische Produkte, Software und Dienstleistungen integriert. Zur Modellierung von CE-relevanten Services wurden zwei neue prozessorientierte Modelltypen erfolgreich mit bestehenden Modellierungstechniken des MBSE kombiniert. Durch die Evaluierungsstudien konnte ein zufriedenstellender Stand der Akzeptanz und wahrgenommenen Nützlichkeit der Methodik nachgewiesen werden. Allerdings wurden Verbesserungspotentiale hinsichtlich ihrer Benutzbarkeit festgestellt. In weiterer For-schung wird es vonnöten sein, die Qualität und die Quantität der Anwendungsvalidierungen zu erhöhen. Zu diesem Zweck wird die Durchführung von Langzeitstudien sowie Anwendungen an industriellen Systemen in einem weiteren Einsatzspektrum und in weiteren Branchen empfohlen. In response to calls for digitization and servitization, businesses increasingly offer complex systems consisting of connected mechatronic products, software elements and services: so-called Smart Product-Service-Systems (Smart PSS). In order to meet the United Nations Sustainability Development Goals and in particular Goal 9 "Sustainable Consumption and Production", these systems must be compatible with the tenets of a Circular Economy (CE). The development of these systems presents businesses with major challenges. It remains unclear how engineering teams can be supported methodologically in developing Smart-circular PSS. This dissertation meets these challenges with the research hypothesis that suitable methods of Model-based Systems Engineering (MBSE) can aid in the development of Smart-circular PSS architectures, which effectively and efficiently contribute to a CE. The investigation applies Design Research Methodology (DRM) as an overarching research approach for hypothesis verification. Initially, expert workshops and an MBSE maturity analysis in an industrial enterprise served to clarify the research objective. Systematic Literature Reviews (SLRs) validated and detailed the fields of action identified. Based on the findings, the Methodology for Smart-circular PSS Architecture Definition (MESSIAH) was developed, which supports development teams in the design of Smart-circular PSS. The method includes a modeling framework, a method and a construction kit for prototyping services. MESSIAH was evaluated by means of a Comprehensive Descriptive Study based on five evaluation studies. The evaluation verified the research hypothesis. Consequently, this research explores how the development of Smart PSS with the help of MBSE can be useful to CE-strategies. MESSIAH enabled the management of system complexity by using an interdisciplinary system architecture that integrates the development of mechatronic products, software and services. In order to de-velop CE-relevant services, two new types of models were successfully integrated into existing modelling techniques of MBSE. User studies indicated a satisfactory level of user acceptance and perceived usefulness of the methodology, but also served to identify potential for improve-ment with regard to its ease of use. In further research it will be necessary to increase the quality and quantity of application validations in further application scenarios and other industry branches. For this purpose, the dissertation recommends long-term studies and applications on further industrial systems.
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