TY - JOUR A1 - Vögele, Stefan A1 - Rübbelke, Dirk A1 - Govorukha, Kristina A1 - Grajewski, Matthias T1 - Socio-technical scenarios for energy-intensive industries: the future of steel production in Germany JF - Climatic Change Y1 - 2019 U6 - http://dx.doi.org/10.1007/s10584-019-02366-0 SN - 0165-0009 SP - 1 EP - 16 PB - Springer CY - Berlin ER - TY - JOUR A1 - Vögele, Stefan A1 - Josyabhatla, Vishnu Teja A1 - Ball, Christopher A1 - Rhoden, Imke A1 - Grajewski, Matthias A1 - Rübbelke, Dirk A1 - Kuckshinrichs, Wilhelm T1 - Robust assessment of energy scenarios from stakeholders' perspectives JF - Energy N2 - Using scenarios is vital in identifying and specifying measures for successfully transforming the energy system. Such transformations can be particularly challenging and require the support of a broader set of stakeholders. Otherwise, there will be opposition in the form of reluctance to adopt the necessary technologies. Usually, processes for considering stakeholders' perspectives are very time-consuming and costly. In particular, there are uncertainties about how to deal with modifications in the scenarios. In principle, new consulting processes will be required. In our study, we show how multi-criteria decision analysis can be used to analyze stakeholders' attitudes toward transition paths. Since stakeholders differ regarding their preferences and time horizons, we employ a multi-criteria decision analysis approach to identify which stakeholders will support or oppose a transition path. We provide a flexible template for analyzing stakeholder preferences toward transition paths. This flexibility comes from the fact that our multi-criteria decision aid-based approach does not involve intensive empirical work with stakeholders. Instead, it involves subjecting assumptions to robustness analysis, which can help identify options to influence stakeholders' attitudes toward transitions. Y1 - 2023 U6 - http://dx.doi.org/10.1016/j.energy.2023.128326 SN - 1873-6785 (Online) SN - 0360-5442 (Print) IS - In Press, Article 128326 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Vögele, Stefan A1 - Grajewski, Matthias A1 - Govorukha, Kristina A1 - Rübbelke, Dirk T1 - Challenges for the European steel industry: Analysis, possible consequences and impacts on sustainable development JF - Applied Energy N2 - The steel industry in the European Union (EU), important for the economy as a whole, faces various challenges. These are inter alia volatile prices for relevant input factors, uncertainties concerning the regulation of CO₂-emissions and market shocks caused by the recently introduced additional import duties in the US, which is an important sales market. We examine primary and secondary effects of these challenges on the steel industry in the EU and their impacts on European and global level. Developing and using a suitable meta-model, we analyze the competitiveness of key steel producing countries with respect to floor prices depending on selected cost factors and draw conclusions on the impacts in the trade of steel on emissions, energy demand, on the involvement of developing countries in the value chain as well on the need for innovations to avoid relocations of production. Hence, our study contributes to the assessment of sustainable industrial development, which is aimed by the Sustainability Development Goal “Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation countries”. By applying information on country-specific Human Development Indexes (reflecting aspects of life expectancy, education, and per capita income), we show that relocating energy-intensive industries from the EU may not only increase global energy demand and CO₂-emissions, but may also be to the disadvantage of developing countries. Y1 - 2020 U6 - http://dx.doi.org/10.1016/j.apenergy.2020.114633 SN - 0306-2619 VL - 264 IS - Article number: 114633 PB - Elsevier CY - Amsterdam ER - TY - THES A1 - Vu, Tuan Dat T1 - Objekterkennung und Schienenerkennung in der Schienenfahrzeugtechnik Y1 - 2022 PB - FH Aachen CY - Aachen ER - TY - JOUR A1 - Vu, Duc-Khoi A1 - Staat, Manfred T1 - An algorithm for shakedown analysis of structure with temperature dependent yield stress N2 - This work is an attempt to answer the question: How to use convex programming in shakedown analysis of structures made of materials with temperature-dependent properties. Based on recently established shakedown theorems and formulations, a dual relationship between upper and lower bounds of the shakedown limit load is found, an algorithmfor shakedown analysis is proposed. While the original problem is neither convex nor concave, the algorithm presented here has the advantage of employing convex programming tools. KW - Einspielen KW - Temperaturabhängigkeit KW - Fließgrenze KW - Shakedown KW - shakedown analysis KW - yield stress Y1 - 2004 ER - TY - JOUR A1 - Vu, Duc Khoi A1 - Staat, Manfred A1 - Tran, Ich Thinh T1 - Analysis of pressure equipment by application of the primal-dual theory of shakedown JF - Communications in Numerical Methods in Engineering. 23 (2007), H. 3 Y1 - 2007 SN - 1069-8299 SP - 213 EP - 225 ER - TY - JOUR A1 - Vu, Duc Khoi A1 - Staat, Manfred T1 - Shakedown analysis of structures made of materials with temperature-dependent yield stress JF - International Journal of Solids and Structures. 44 (2007), H. 13 Y1 - 2007 SN - 0020-7683 SP - 4524 EP - 4540 ER - TY - GEN A1 - Vreden, Frauke T1 - Raum 02103 - eine Hommage T1 - Room 02103 - a homage N2 - Raum 02103. Ein Ort - tausende von Ideen, Geschichten und Träumen. die Bibliothek des Fachbereichs Design der FH Aachen. Eine scheinbar starre Gestalt und doch in ständigem Wandel. Menschen kommen und gehen; Dinge sind in Bewegung. Ein stiller Fluss von Veränderung, wie in einer eigenständigen Welt. Was macht diesen Ort aus? Was können Zahlen über ihn verraten? Und was befindet sich unter seiner strukturierten Oberfläche? Mit besonderem Blick auf das oft Unbemerkte, ist meine Arbeit eine Hommage an den „Raum 02103“ - an alles was ich dort bereits entdecken durfte und was noch zu entdecken ist. N2 - Room 02103. One place - thousands of ideas, stories and dreams. Source of knowledge and inspiration. My thesis - a book about the design department's library of the FH Aachen. An obviously rigid form, yet constantly changing. People come and go, things are in a movement. A peaceful river of change as in an independent world. What makes this place different? What can any abstract data tell about it? And what is under its structured surface? Focusing on the often unnoticed things, my work is a tribute to the space 02103 - in all I could discover there already and what remains to be revealed. KW - Mediendesign KW - Schwarzweißphotographie KW - Gebrauchsgrafik KW - Diagramm KW - Sammelobjekt KW - Infografik KW - Editorial KW - Benutzerumfrage KW - Grafikdesign KW - Illustration KW - Information Design KW - Book Project KW - User Survey KW - Graphic Design KW - Tribute Y1 - 2011 ER - TY - CHAP A1 - Vredal, Andreas A1 - Wollert, Jörg T1 - Praktische Untersuchungen zur Reduzierung der Restfehlerrate von Funksystemen T2 - Wireless Automation : Chancen, Lösungen, Risiken ; Tagung Darmstadt, 8. und 9. Mai 2006. (VDI-Berichte ; 1939) Y1 - 2006 SN - 3-18-091939-6 SP - 135 EP - 146 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Voß, Alfred A1 - Bundschuh, Vinzenz A1 - Meliß, Michael A1 - Oesterwind, Dieter T1 - Andere Primärenergiequellen T2 - Nichtkonventionelle Energiesysteme : Vorträge der VDI-Tagung Düsseldorf 1974. - (VDI-Bericht. 224.) Y1 - 1974 SN - 3-18-090224-8 SP - 117 EP - 125 PB - VDI-Verl. CY - Düsseldorf ER -