@book{Pieper2017, author = {Pieper, Martin}, title = {Mathematische Optimierung: Eine Einf{\"u}hrung in die kontinuierliche Optimierung mit Beispielen}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-658-16975-6}, doi = {10.1007/978-3-658-16975-6}, pages = {IX, 53 S. 20 Abb.}, year = {2017}, language = {de} } @book{Pieper2021, author = {Pieper, Martin}, title = {Quantum mechanics: Introduction to mathematical formulation}, publisher = {Springer}, address = {Wiesbaden}, isbn = {978-3-658-32644-9}, doi = {10.1007/978-3-658-32645-6}, pages = {XIII, 33}, year = {2021}, abstract = {Anyone who has always wanted to understand the hieroglyphs on Sheldon's blackboard in the TV series The Big Bang Theory or who wanted to know exactly what the fate of Schr{\"o}dinger's cat is all about will find a short, descriptive introduction to the world of quantum mechanics in this essential. The text particularly focuses on the mathematical description in the Hilbert space. The content goes beyond popular scientific presentations, but is nevertheless suitable for readers without special prior knowledge thanks to the clear examples.}, language = {en} } @inproceedings{Pieper2018, author = {Pieper, Martin}, title = {Digitale Hochschullehre in mathematischen und mathematikdidaktischen Veranstaltungen}, series = {Beitr{\"a}ge zum Mathematikunterricht 2018 : Vortr{\"a}ge zur Mathematikdidaktik und zur Schnittstelle Mathematik/Mathematikdidaktik auf der gemeinsamen Jahrestagung GDM und DMV 2018 (52. Jahrestagung der Gesellschaft f{\"u}r Didaktik der Mathematik). Bd. 1}, booktitle = {Beitr{\"a}ge zum Mathematikunterricht 2018 : Vortr{\"a}ge zur Mathematikdidaktik und zur Schnittstelle Mathematik/Mathematikdidaktik auf der gemeinsamen Jahrestagung GDM und DMV 2018 (52. Jahrestagung der Gesellschaft f{\"u}r Didaktik der Mathematik). Bd. 1}, publisher = {WTM-Verlag}, address = {M{\"u}nster}, isbn = {978-3-95987-089-4}, pages = {105 -- 106}, year = {2018}, language = {de} } @inproceedings{Pieper2018, author = {Pieper, Martin}, title = {Lernzielorientierte Kurse und Stack Aufgaben in der Mathematikausbildung}, series = {Beitr{\"a}ge zum Mathematikunterricht 2018 : Vortr{\"a}ge zur Mathematikdidaktik und zur Schnittstelle Mathematik/Mathematikdidaktik auf der gemeinsamen Jahrestagung GDM und DMV 2018 (52. Jahrestagung der Gesellschaft f{\"u}r Didaktik der Mathematik). Bd. 3}, booktitle = {Beitr{\"a}ge zum Mathematikunterricht 2018 : Vortr{\"a}ge zur Mathematikdidaktik und zur Schnittstelle Mathematik/Mathematikdidaktik auf der gemeinsamen Jahrestagung GDM und DMV 2018 (52. Jahrestagung der Gesellschaft f{\"u}r Didaktik der Mathematik). Bd. 3}, publisher = {WTM-Verlag}, address = {M{\"u}nster}, isbn = {978-3-95987-089-4}, pages = {1399 -- 1402}, year = {2018}, language = {de} } @inproceedings{PhilippBrillowskiDammersetal.2020, author = {Philipp, Brauner and Brillowski, Florian Sascha and Dammers, Hannah and K{\"o}nigs, Peter and Kordtomeikel, Frauke Carole and Petruck, Henning and Schaar, Anne Kathrin and Schmitz, Seth and Steuer-Dankert, Linda and Mertens, Alexander and Gries, Thomas and Leicht-Scholten, Carmen and Nagel, Saskia K. and Nitsch, Verena and Schuh, G{\"u}nther and Ziefle, Martina}, title = {A research framework for human aspects in the internet of production: an intra-company perspective}, series = {Proceedings of the AHFE 2020}, booktitle = {Proceedings of the AHFE 2020}, editor = {Mrugalska, Beata and Trzcielinski, Stefan and Karwowski, Waldemar and Nicolantonio, Massimo Di and Roossi, Emilio}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-51980-3}, doi = {10.1007/978-3-030-51981-0_1}, pages = {3 -- 17}, year = {2020}, abstract = {Digitalization in the production sector aims at transferring concepts and methods from the Internet of Things (IoT) to the industry and is, as a result, currently reshaping the production area. Besides technological progress, changes in work processes and organization are relevant for a successful implementation of the "Internet of Production" (IoP). Focusing on the labor organization and organizational procedures emphasizes to consider intra-company factors such as (user) acceptance, ethical issues, and ergonomics in the context of IoP approaches. In the scope of this paper, a research approach is presented that considers these aspects from an intra-company perspective by conducting studies on the shop floor, control level and management level of companies in the production area. Focused on four central dimensions—governance, organization, capabilities, and interfaces—this contribution presents a research framework that is focused on a systematic integration and consideration of human aspects in the realization of the IoP.}, language = {en} } @inproceedings{PfundtVogelsangGerling1988, author = {Pfundt, H. and Vogelsang, D. and Gerling, Ulrich}, title = {Calculation of the crust profile in aluminium reduction cells by thermal computer modelling}, series = {Light metals 1989 : 118th annual meeting of the Minerals, Metals and Materials Society, Las Vegas, NV, Feb. 27 - Mar. 03. 1989}, booktitle = {Light metals 1989 : 118th annual meeting of the Minerals, Metals and Materials Society, Las Vegas, NV, Feb. 27 - Mar. 03. 1989}, publisher = {Minerals, Metals and Materials Soc.}, address = {Warrendale, Pa.}, pages = {371 -- 377}, year = {1988}, language = {en} } @book{PeterStrackeWeinzierletal.1995, author = {Peter, M. and Stracke, Thomas and Weinzierl, C. and Faber, Christian and Schwarzer, Klemens}, title = {Verbundvorhaben zur Ermittlung der Leistungsf{\"a}higkeit von Sonnenheizsystemen zur Wassererw{\"a}rmung : Phase 2 (VELS II) ; Abschlussbericht}, publisher = {Solar-Institut J{\"u}lich, Fachhochschule Aachen}, address = {J{\"u}lich}, pages = {87 S.}, year = {1995}, language = {de} } @inproceedings{PaulsenHoffstadtKrafftetal.2020, author = {Paulsen, Svea and Hoffstadt, Kevin and Krafft, Simone and Leite, A. and Zang, J. and Fonseca-Zang, W. and Kuperjans, Isabel}, title = {Continuous biogas production from sugarcane as sole substrate}, series = {Energy Reports}, volume = {6}, booktitle = {Energy Reports}, number = {Supplement 1}, publisher = {Elsevier}, doi = {10.1016/j.egyr.2019.08.035}, pages = {153 -- 158}, year = {2020}, abstract = {A German-Brazilian research project investigates sugarcane as an energy plant in anaerobic digestion for biogas production. The aim of the project is a continuous, efficient, and stable biogas process with sugarcane as the substrate. Tests are carried out in a fermenter with a volume of 10 l. In order to optimize the space-time load to achieve a stable process, a continuous process in laboratory scale has been devised. The daily feed in quantity and the harvest time of the substrate sugarcane has been varied. Analyses of the digester content were conducted twice per week to monitor the process: The ratio of inorganic carbon content to volatile organic acid content (VFA/TAC), the concentration of short-chain fatty acids, the organic dry matter, the pH value, and the total nitrogen, phosphate, and ammonium concentrations were monitored. In addition, the gas quality (the percentages of CO₂, CH₄, and H₂) and the quantity of the produced gas were analyzed. The investigations have exhibited feasible and economical production of biogas in a continuous process with energy cane as substrate. With a daily feeding rate of 1.68gᵥₛ/l*d the average specific gas formation rate was 0.5 m3/kgᵥₛ. The long-term study demonstrates a surprisingly fast metabolism of short-chain fatty acids. This indicates a stable and less susceptible process compared to other substrates.}, language = {en} } @masterthesis{Pauls2024, type = {Bachelor Thesis}, author = {Pauls, Benjamin}, title = {Energiewende im Stromsektor: Nachhaltigkeit {\"u}ber Umweltschutz hinaus}, school = {Fachhochschule Aachen}, pages = {IV, 88 Seiten}, year = {2024}, abstract = {Die Energiewende wird h{\"a}ufig als „nachhaltig" bezeichnet, das genaue Begriffsverst{\"a}ndnis bleibt jedoch vage. Diese Transformation von fossilen und nuklearen hin zu erneuerbaren Energiequellen steht im Fokus der Treibhausgasneutralit{\"a}t. So soll dem fortschreitenden Klimawandel entgegengetreten werden. Das Thema der vorliegenden Arbeit ist die Definition eines m{\"o}glichen Verst{\"a}ndnisses von „Nachhaltigkeit" in der Energiewende des deutschen Stromsektors. Die leitenden Forschungsfragen lauten: Was kann im Zusammenhang mit der Energiewende im Stromsektor Deutschlands unter Nachhaltigkeit verstanden werden? Inwieweit unterscheidet sich dieses Verst{\"a}ndnis von der bisherigen Herangehensweise? Die Datenbasis zur Beantwortung dieser liefern sechs leitfadengest{\"u}tzte Expert:inneninterviews. Als Analysemethode dient die inhaltliche Strukturierung nach Mayring (2015). Die qualitative Studie hat gezeigt, dass eine nachhaltige Energiewende den Menschen und die Natur zentralisiert. Weiter aufgeschl{\"u}sselt stehen die drei Nachhaltigkeitsdimensionen und die Generationengerechtigkeit. Dabei dient die {\"o}konomische Dimension der sozialen und {\"o}kologischen. Wichtig sind die Inklusion und Beteiligung von Bev{\"o}lkerung, Unternehmen und Politik. Gleichzeitig ist sie Herausforderung und Chance f{\"u}r einen positiven gesellschaftlichen Wandel. Technisch dienen Windenergie- und Photovoltaikanlagen als Energielieferanten und Wasserstoffsysteme als Zwischenspeicher, Stabilit{\"a}tssicherung und zur Kopplung der Sektoren. Damit ist Nachhaltigkeit die Chance, die Energiewende richtig zu gestalten und damit {\"u}ber Klimaneutralit{\"a}t hinauszugehen}, language = {de} } @article{PauksztatKuperjansMeyer2005, author = {Pauksztat, Anja and Kuperjans, Isabel and Meyer, J{\"o}rg}, title = {Formeln statt Zahlen : Referenzwerte Formeln zur energetischen Bewertung von Produktionsanlagen}, series = {BWK : das Energie-Fachmagazin}, volume = {57}, journal = {BWK : das Energie-Fachmagazin}, number = {12}, issn = {0006-9612}, pages = {52 -- 55}, year = {2005}, language = {de} } @article{PauksztatKuperjansMeyer2005, author = {Pauksztat, Anja and Kuperjans, Isabel and Meyer, J{\"o}rg}, title = {Produktbezogene Referenzwerte f{\"u}r Energieeffizienz und CO2-Emissionen}, series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, volume = {55}, journal = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, number = {6}, issn = {0013-743X}, pages = {374 -- 376}, year = {2005}, language = {de} } @inproceedings{PauksztatKuperjansdeHesselle2006, author = {Pauksztat, Anja and Kuperjans, Isabel and de Hesselle, M.}, title = {Referenzformeln f{\"u}r Energiebedarf und CO2-Emissionen in der Glasindustrie}, series = {Energieeffizienz - Chancen f{\"u}r die Zukunft : Tagung Berlin, 14. und 15. November 2006. - (VDI-Berichte ; 1951)}, booktitle = {Energieeffizienz - Chancen f{\"u}r die Zukunft : Tagung Berlin, 14. und 15. November 2006. - (VDI-Berichte ; 1951)}, edition = {Nichtred. Ms.-Dr.}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, isbn = {3-18-091951-5}, pages = {179 -- 190}, year = {2006}, language = {de} } @inproceedings{ParkElDaibButenwegetal.2011, author = {Park, Jin and El-Daib, Khaled and Butenweg, Christoph and Gellert, Christoph}, title = {A novel macroelement approach for masonry walls}, series = {Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011 : Leuven, Belgium, 4 - 6 July 2011 / Katholieke Universiteit Leuven, ... G. De Roeck ... (eds)}, booktitle = {Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011 : Leuven, Belgium, 4 - 6 July 2011 / Katholieke Universiteit Leuven, ... G. De Roeck ... (eds)}, publisher = {K. U. Leuven, Dep. of Civil Engineering}, address = {Leuven}, organization = {International Conference on Structural Dynamics, EURODYN <8, 2011, Leuven>}, isbn = {978-90-76019-31-4}, pages = {3281 -- 3286}, year = {2011}, language = {en} } @inproceedings{ParkButenwegReindl2010, author = {Park, Jin and Butenweg, Christoph and Reindl, Lukas}, title = {Untersuchung der Eignung von Ankerschienensystemen unter Erdbebeneinwirkungen}, series = {Conference proceedings / ANSYS Conference \& 28th CADFEM Users´ Meeting 2010 : 3. - 5. November 2010, Eurogess Aachen / CADFEM; ANSYS}, booktitle = {Conference proceedings / ANSYS Conference \& 28th CADFEM Users´ Meeting 2010 : 3. - 5. November 2010, Eurogess Aachen / CADFEM; ANSYS}, publisher = {CADFEM [u.a.]}, address = {Grafing}, isbn = {3-937523-07-3}, pages = {Dokument 2.11.1}, year = {2010}, language = {de} } @inproceedings{OetringerDuemmlerGoettsche2020, author = {Oetringer, Kerstin and D{\"u}mmler, Andreas and G{\"o}ttsche, Joachim}, title = {Neues Modell zur 1D-Simulation der indirekten Verdunstungsk{\"u}hlung}, series = {DKV-Tagung 2020, AA II.1}, booktitle = {DKV-Tagung 2020, AA II.1}, pages = {250 -- 262}, year = {2020}, abstract = {Im Projekt Coolplan- AIR geht es um die Fortentwicklung und Feld- Validierung eines Berechnungs- und Auslegungstools zur energieeffizienten K{\"u}hlung von Geb{\"a}uden mit luftgest{\"u}tzten Systemen. Neben dem Aufbau und der Weiterentwicklung von Simulationsmodellen erfolgen Vermessungen der Gesamtsysteme anhand von Praxisanlagen im Feld. Eine der betrachteten Anlagen arbeitet mit indirekter Verdunstung. Diese Ver{\"o}ffentlichung zeigt den Entwicklungsprozess und den Aufbau des Simulationsmodells zur Verdunstungsk{\"u}hlung in der Simulationsumgebung Matlab- Simulink mit der CARNOT- Toolbox. Das besondere Augenmerk liegt dabei auf dem physikalischen Modell des W{\"a}rme{\"u}bertragers, in dem die Verdunstung implementiert ist. Dem neuen Modellansatz liegt die Annahme einer aus der Enthalpie- Betrachtung hergeleiteten effektiven W{\"a}rmekapazit{\"a}t zugrunde. Des Weiteren wird der Befeuchtungsgrad als konstant angesehen und eine standardisierte Zunahme der W{\"a}rme{\"u}bertragung des feuchten gegen{\"u}ber dem trockenen W{\"a}rme{\"u}bertrager angenommen. Die Validierung des Modells erfolgte anhand von Literaturdaten. F{\"u}r den trockenen W{\"a}rmetauscher ist der maximale absolute Fehler der berechneten Austrittstemperatur (Zuluft) kleiner als ±0.1 K und f{\"u}r den nassen W{\"a}rmetauscher (K{\"u}hlfall) unter der Annahme eines konstanten Verdunstungsgrades kleiner als ±0.4 K.}, language = {de} } @article{NordaButenweg2011, author = {Norda, Hannah and Butenweg, Christoph}, title = {M{\"o}glichkeiten und Grenzen der Anwendbarkeit statisch nichtlinearer Verfahren nach DIN EN 1998-1}, series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt}, volume = {Band 86}, journal = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {1436-4867 (E-Journal); 0005-6650 (Print)}, pages = {S13 -- S21}, year = {2011}, language = {de} } @misc{NobisrathZuendorfGeorgeetal.2017, author = {Nobisrath, Ulrich and Z{\"u}ndorf, Albert and George, Tobias and Ruben, Jubeh and Kraft, Bodo}, title = {Software Stories Guide}, pages = {21}, year = {2017}, abstract = {Software Stories are a simple graphical notation for requirements analysis and design in agile software projects. Software Stories are based on example scenarios. Example scenarios facilitate the communication between lay people or domain experts and software experts.}, language = {en} } @article{NobisSchmittSchemmetal.2020, author = {Nobis, Moritz and Schmitt, Carlo and Schemm, Ralf and Schnettler, Armin}, title = {Pan-European CVAR-constrained stochastic unit commitment in day-ahead and intraday electricity markets}, series = {Energies}, volume = {13}, journal = {Energies}, number = {Art. 2339}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {10.3390/en13092339}, pages = {1 -- 35}, year = {2020}, abstract = {The fundamental modeling of energy systems through individual unit commitment decisions is crucial for energy system planning. However, current large-scale models are not capable of including uncertainties or even risk-averse behavior arising from forecasting errors of variable renewable energies. However, risks associated with uncertain forecasting errors have become increasingly relevant within the process of decarbonization. The intraday market serves to compensate for these forecasting errors. Thus, the uncertainty of forecasting errors results in uncertain intraday prices and quantities. Therefore, this paper proposes a two-stage risk-constrained stochastic optimization approach to fundamentally model unit commitment decisions facing an uncertain intraday market. By the nesting of Lagrangian relaxation and an extended Benders decomposition, this model can be applied to large-scale, e.g., pan-European, power systems. The approach is applied to scenarios for 2023—considering a full nuclear phase-out in Germany—and 2035—considering a full coal phase-out in Germany. First, the influence of the risk factors is evaluated. Furthermore, an evaluation of the market prices shows an increase in price levels as well as an increasing day-ahead-intraday spread in 2023 and in 2035. Finally, it is shown that intraday cross-border trading has a significant influence on trading volumes and prices and ensures a more efficient allocation of resources.}, language = {en} } @book{Nissen2008, author = {Nissen, Holger}, title = {[Skripte]}, year = {2008}, language = {en} } @inproceedings{NierlePieper2023, author = {Nierle, Elisabeth and Pieper, Martin}, title = {Measuring social impacts in engineering education to improve sustainability skills}, series = {European Society for Engineering Education (SEFI)}, booktitle = {European Society for Engineering Education (SEFI)}, doi = {10.21427/QPR4-0T22}, pages = {9 Seiten}, year = {2023}, abstract = {In times of social climate protection movements, such as Fridays for Future, the priorities of society, industry and higher education are currently changing. The consideration of sustainability challenges is increasing. In the context of sustainable development, social skills are crucial to achieving the United Nations Sustainable Development Goals (SDGs). In particular, the impact that educational activities have on people, communities and society is therefore coming to the fore. Research has shown that people with high levels of social competence are better able to manage stressful situations, maintain positive relationships and communicate effectively. They are also associated with better academic performance and career success. However, especially in engineering programs, the social pillar is underrepresented compared to the environmental and economic pillars. In response to these changes, higher education institutions should be more aware of their social impact - from individual forms of teaching to entire modules and degree programs. To specifically determine the potential for improvement and derive resulting change for further development, we present an initial framework for social impact measurement by transferring already established approaches from the business sector to the education sector. To demonstrate the applicability, we measure the key competencies taught in undergraduate engineering programs in Germany. The aim is to prepare the students for success in the modern world of work and their future contribution to sustainable development. Additionally, the university can include the results in its sustainability report. Our method can be applied to different teaching methods and enables their comparison.}, language = {en} }