@article{SanchezCespedesLeasureTejedorGaravitoetal.2023, author = {Sanchez-Cespedes, Lina Maria and Leasure, Douglas Ryan and Tejedor-Garavito, Natalia and Amaya Cruz, Glenn Harry and Garcia Velez, Gustavo Adolfo and Mendoza Beltr{\´a}n, Andryu Enrique and Mar{\´i}n-Salazar, Yenny Andrea and Esch, Thomas and Tatem, Andrew J. and Ospina Boh{\´o}rquez, Mariana Francisca}, title = {Social cartography and satellite-derived building coverage for post-census population estimates in difficult-to-access regions of Colombia}, series = {Population studies : a Journal of Demography}, volume = {78}, journal = {Population studies : a Journal of Demography}, number = {1}, publisher = {Taylor \& Francis}, address = {London}, issn = {1477-4747}, doi = {10.1080/00324728.2023.2190151}, pages = {3 -- 20}, year = {2023}, abstract = {Effective government services rely on accurate population numbers to allocate resources. In Colombia and globally, census enumeration is challenging in remote regions and where armed conflict is occurring. During census preparations, the Colombian National Administrative Department of Statistics conducted social cartography workshops, where community representatives estimated numbers of dwellings and people throughout their regions. We repurposed this information, combining it with remotely sensed buildings data and other geospatial data. To estimate building counts and population sizes, we developed hierarchical Bayesian models, trained using nearby full-coverage census enumerations and assessed using 10-fold cross-validation. We compared models to assess the relative contributions of community knowledge, remotely sensed buildings, and their combination to model fit. The Community model was unbiased but imprecise; the Satellite model was more precise but biased; and the Combination model was best for overall accuracy. Results reaffirmed the power of remotely sensed buildings data for population estimation and highlighted the value of incorporating local knowledge.}, language = {en} } @misc{Westhoff2024, type = {Master Thesis}, author = {Westhoff, Lou-Mailin}, title = {Digitaler Marktplatz : f{\"u}r Erzeuger:innen und Konsument:innen regionaler Produkte}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {145 Seiten}, year = {2024}, abstract = {Digitaler Marktplatz f{\"u}r Erzeuger:innen und Verbraucher:innen regionaler Produkte. Das Ziel dieses Projekts ist es, solidarische Landwirtschaft (SoLaWi) zu digitalisieren, um eine zeitgem{\"a}ße Alternative zu den bestehenden Kauf- und Abonnementprozessen zu schaffen. Die dabei entstandene App „KoHof" erm{\"o}glicht landwirtschaftlichen Betrieben, sich online zu pr{\"a}sentieren, Abonnements zu verwalten und neue Mitglieder zu gewinnen. Gleichzeitig bietet die Plattform Verbraucher:innen eine unkomplizierte M{\"o}glichkeit, passende Betriebe und dazugeh{\"o}rige Produkte in der Region zu finden sowie ihre Mitgliedschaft zu verwalten. Insgesamt strebt das Projekt "KoHof" danach, die Solidarische Landwirtschaft digital zu transformieren und eine neue Perspektive f{\"u}r die regionale Erzeugung von Lebensmitteln zu er{\"o}ffnen. Durch diese innovative Plattform wird die Vernetzung zwischen Erzeugerinnen und Verbraucherinnen in der SoLaWi-Bewegung auf eine neue Stufe gehoben.}, language = {de} } @misc{Kaiser2024, type = {Master Thesis}, author = {Kaiser, Leonie}, title = {Der Konflikt von Konsum und Minimalismus : die Beziehung zu unseren Dingen und ihre Rolle im Wohnraum}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {137 Seiten}, year = {2024}, abstract = {Das Thema der Masterarbeit erl{\"a}utert den Konflikt zwischen Konsum und Minimalismus. {\"U}berkonsum und Minimalismus sind gegens{\"a}tzliche Extreme. Durch die Beziehung zwischen Mensch und Objekt lassen sich die beiden Gegens{\"a}tze vereinen. Die Konzentration auf nur wenige Objekte hat eine Reduktion des Konsums und eine Fokussierung auf wenige Objekte zur Folge. Das Konzept „kubo" gibt Objekten einen Raum. Das Regal „kubo" ist mit verstellbaren Regalb{\"o}den ausgestattet. So k{\"o}nnen die Gegenst{\"a}nde individuell platziert werden. Das Verstellen und Anordnen der Regalb{\"o}den k{\"o}nnen Benutzer:innen nach eigenem Belieben vornehmen. Die Objekte werden im Regal hervorgehoben. Sie erhalten dadurch mehr Aufmerksamkeit. Ziel ist es, dass der Benutzer:innen mehr mit den Objekten interagieren und sich bewusst werden, was wirklich wichtig ist. „kubo" versucht dem Problem des {\"U}berkonsums entgegenzuwirken. Durch die Hervorhebung wichtiger Objekte wird das Bewusstsein f{\"u}r den eigenen Konsum gesch{\"a}rft.}, language = {de} } @misc{Breuer2024, type = {Master Thesis}, author = {Breuer, Annika}, title = {Climate Engineering : Entwicklung einer digitalen Plattform f{\"u}r Climate Engineering Maßnahmen}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {131 Seiten}, year = {2024}, abstract = {Dieses Projekt hat zum Ziel, umfassend {\"u}ber Climate Engineering-Maßnahmen zu informieren und dabei insbesondere ihre Funktionsweise, Kosten und Risiken darzustellen. Die entstandene Plattform "Die Erde abk{\"u}hlen!" bietet einen Einblick in die L{\"o}sungsans{\"a}tze des Climate Engineerings durch die Verwendung von Storytelling. Sie erm{\"o}glicht Nutzer:innen einen {\"U}berblick {\"u}ber den aktuellen Stand der Klimaerw{\"a}rmung sowie den Vergleich von Climate Engineering-Maßnahmen. Ein entwickeltes Bewertungssystem auf Grundlage der "Royal Society" sowie interaktive Infografiken geben Nutzer:innen einen umfassenden Einblick. Das Hauptziel des Projekts ist die digitale Transformation der Climate Engineering-L{\"o}sungsans{\"a}tze. Dabei geht es nicht nur darum, {\"u}ber die Folgen der Klimaerw{\"a}rmung zu informieren, sondern auch konkrete L{\"o}sungen aufzuzeigen. Durch die Entwicklung eines innovativen Storytellings wird die Thematik nicht nur dramaturgisch pr{\"a}sentiert, sondern erm{\"o}glicht es den Nutzer:innen auch, ihre eigene Wissensvertiefung zu steuern.}, language = {de} } @misc{Beyer2024, type = {Master Thesis}, author = {Beyer, Laura}, title = {Die Stuhl - und Sichtbarkeit von Gestalterinnen : ein Atlas {\"u}ber Frauen im Stuhldesign}, publisher = {FH Aachen}, address = {Aachen}, pages = {493 Seiten}, year = {2024}, abstract = {Das Masterprojekt DIE STUHL hebt die Unsichtbarkeit von Gestalterinnen im Stuhldesign hervor. Es werden 108 Designerinnen aus 40 L{\"a}ndern vorgestellt, die vom Beginn des 20. Jahrhunderts bis heute innovative und richtungsweisende Entw{\"u}rfe von St{\"u}hlen entwickelt haben. Die Arbeit beleuchtet den Beitrag, den sie geleistet haben und stellt gleichzeitig heraus, dass viele von ihnen im internationalen Designkanon {\"u}bersehen wurden. Chronologisch nach dem Erscheinungsjahr der ersten entwickelten St{\"u}hle geordnet, werden die Objekte in einem Atlas illustriert und Kurzbiografien der Protagonistinnen gezeigt. Anhand von Informationsgrafiken werden die St{\"u}hle in das soziopolitische Geschehen ihrer Zeit eingebettet. DIE STUHL w{\"u}rdigt die Arbeit von Gestalterinnen und stellt Fragen zur strukturellen Ungleichheit der Geschlechter. Parallel zur Publikation ist außerdem eine Skulptur entstanden, die als Zeitstrahl fungiert und in abstrakter Form alle im Atlas erw{\"a}hnten St{\"u}hle auff{\"u}hrt. Hierbei wird das ungleiche Verh{\"a}ltnis der von Gestalterinnen und Gestalter entworfenen St{\"u}hle sichtbar.}, language = {de} } @misc{Lux2024, type = {Master Thesis}, author = {Lux, Anneli}, title = {Konzeption und Gestaltung einer Applikation zur F{\"o}rderung der individuellen Lehre an Schulen}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {327 Seiten}, year = {2024}, abstract = {Die Abschlussarbeit thematisiert konzeptionelle M{\"o}glichkeiten f{\"u}r die Unterst{\"u}tzung in der Lehre. Lehrkr{\"a}fte erfahren eine hohe Auslastung in ihrem Beruf. Besonders ein wachsender Fachkr{\"a}ftemangel verst{\"a}rkt das Problem, welches wiederum Auswirkungen auf die Leistungen der Sch{\"u}lerinnen und Sch{\"u}ler haben kann. Somit kann auch der individuellen F{\"o}rderung nicht ausreichend nachgegangen werden. Die L{\"o}sung der Arbeit ist Kinvi, ein digitaler KI-Lehrassistent. Kinvi soll leistungsschwache und leistungsstarke Sch{\"u}ler f{\"o}rdern. Dabei kann Kinvi Inhalte erkl{\"a}ren, eine individuelle Lernstruktur vorgeben und sogar {\"U}bungen erstellen. Auch spielerische Inhalte und ein motivierendes Feedback sind inbegriffen. Lehrkr{\"a}fte k{\"o}nnen Inhalte KI gest{\"u}tzt steuern und Leistungen {\"u}berblicken. Dies soll zur Entlastung der Lehrkr{\"a}fte f{\"u}hren und die F{\"a}higkeiten der Sch{\"u}lerinnen und Sch{\"u}ler gezielt f{\"o}rdern.}, language = {de} } @masterthesis{Walossek2024, type = {Bachelor Thesis}, author = {Waloßek, Marvin}, title = {RehaGlove : Exoskelett zur Griffunterst{\"u}tzung bei rheumatoider Arthritis oder Arthrose.}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {132 Seiten}, year = {2024}, abstract = {RehaGlove ist ein Exoskelett, dass Menschen mit rheumatoider Arthritis oder Arthrose bei der Bew{\"a}ltigung des Alltags helfen soll. Die rheumatoide Arthritis zeichnet sich vorwiegend durch die chronischen Entz{\"u}ndungen des Gelenkapparats aus, w{\"a}hrend die Arthrose eine alters- oder belastungsinduzierte Degeneration des Gelenkgewebes darstellt. Bei beiden Erkrankungen sind die Fingergelenke besonders h{\"a}ufig betroffen. Es kommt zu sehr starken Schmerzen, Bewegungseinschr{\"a}nkungen und Kraftverlust. Da wir unsere H{\"a}nde jedoch t{\"a}glich brauchen, gestaltet sich der Alltag mit einer solch einschr{\"a}nkenden Krankheit als besonders schmerzhaft. Dabei soll RehaGlove Abhilfe schaffen. Mehrere Zug-/ Druck-Kabel unterst{\"u}tzen den Griff und steigern die Griffkraft. Außerdem erm{\"o}glichen sie die eigenst{\"a}ndige Ausf{\"u}hrung physiotehrapeutischer Aufgaben und erleichtern es die Gelenke mobil zu halten.}, language = {de} } @article{VarrialeHengsbachGuoetal.2024, author = {Varriale, Ludovica and Hengsbach, Jan-Niklas and Guo, Tianyi and Kuka, Katrin and Tippk{\"o}tter, Nils and Ulber, Roland}, title = {Sustainable production of lactic acid using a perennial ryegrass as feedstock—a comparative study of fermentation at the bench- and reactor-scale, and ensiling}, series = {Sustainability}, volume = {16}, journal = {Sustainability}, number = {18}, publisher = {MDPI}, address = {Basel}, issn = {2071-1050}, doi = {10.3390/su16188054}, year = {2024}, abstract = {Perennial ryegrass (Lolium perenne) is an underutilized lignocellulosic biomass that has several benefits such as high availability, renewability, and biomass yield. The grass press-juice obtained from the mechanical pretreatment can be used for the bio-based production of chemicals. Lactic acid is a platform chemical that has attracted consideration due to its broad area of applications. For this reason, the more sustainable production of lactic acid is expected to increase. In this work, lactic acid was produced using complex medium at the bench- and reactor scale, and the results were compared to those obtained using an optimized press-juice medium. Bench-scale fermentations were carried out in a pH-control system and lactic acid production reached approximately 21.84 ± 0.95 g/L in complex medium, and 26.61 ± 1.2 g/L in press-juice medium. In the bioreactor, the production yield was 0.91 ± 0.07 g/g, corresponding to a 1.4-fold increase with respect to the complex medium with fructose. As a comparison to the traditional ensiling process, the ensiling of whole grass fractions of different varieties harvested in summer and autumn was performed. Ensiling showed variations in lactic acid yields, with a yield up to 15.2\% dry mass for the late-harvested samples, surpassing typical silage yields of 6-10\% dry mass.}, language = {en} } @article{OrtnerHauserSchmadereretal.2019, author = {Ortner, Marion and Hauser, Christine and Schmaderer, Christoph and Muggenthaler, Claudia and Hapfelmeier, Alexander and Sorg, Christian and Diehl-Schmid, Janine and Kurz, Alexander and F{\"o}rstl, Hans and Ikenberg, Benno and Kotliar, Konstantin and Holger, Poppert and Grimmer, Timo}, title = {Decreased vascular pulsatility in Alzheimer's disease dementia measured by transcranial color-coded duplex sonography}, series = {Neuropsychiatric disease and treatment}, journal = {Neuropsychiatric disease and treatment}, number = {15}, publisher = {Dove Medical Press}, address = {Albany, Auckland}, issn = {1178-2021}, doi = {10.2147/NDT.S225754}, pages = {3487 -- 3499}, year = {2019}, abstract = {Purpose: Impaired paravascular drainage of β-Amyloid (Aβ) has been proposed as a contributing cause for sporadic Alzheimer's disease (AD), as decreased cerebral blood vessel pulsatility and subsequently reduced propulsion in this pathway could lead to the accumulation and deposition of Aβ in the brain. Therefore, we hypothesized that there is an increased impairment in pulsatility across AD spectrum. Patients and Methods: Using transcranial color-coded duplex sonography (TCCS) the resistance and pulsatility index (RI; PI) of the middle cerebral artery (MCA) in healthy controls (HC, n=14) and patients with AD dementia (ADD, n=12) were measured. In a second step, we extended the sample by adding patients with mild cognitive impairment (MCI) stratified by the presence (MCI-AD, n=8) or absence of biomarkers (MCI-nonAD, n=8) indicative for underlying AD pathology, and compared RI and PI across the groups. To control for atherosclerosis as a confounder, we measured the arteriolar-venular-ratio of retinal vessels. Results: Left and right RI (p=0.020; p=0.027) and left PI (p=0.034) differed between HC and ADD controlled for atherosclerosis with AUCs of 0.776, 0.763, and 0.718, respectively. The RI and PI of MCI-AD tended towards ADD, of MCI-nonAD towards HC, respectively. RIs and PIs were associated with disease severity (p=0.010, p=0.023). Conclusion: Our results strengthen the hypothesis that impaired pulsatility could cause impaired amyloid clearance from the brain and thereby might contribute to the development of AD. However, further studies considering other factors possibly influencing amyloid clearance as well as larger sample sizes are needed.}, language = {en} } @article{BandlitzNakhoulKotliar2022, author = {Bandlitz, Stefan and Nakhoul, Makram and Kotliar, Konstantin}, title = {Daily variations of corneal white-to-white diameter measured with different methods}, series = {Clinical and experimental optometry}, journal = {Clinical and experimental optometry}, number = {14}, publisher = {Taylor \& Francis}, address = {London}, issn = {0816-4622}, doi = {10.2147/OPTO.S360651}, pages = {173 -- 181}, year = {2022}, abstract = {Purpose: A precise determination of the corneal diameter is essential for the diagnosis of various ocular diseases, cataract and refractive surgery as well as for the selection and fitting of contact lenses. The aim of this study was to investigate the agreement between two automatic and one manual method for corneal diameter determination and to evaluate possible diurnal variations in corneal diameter. Patients and Methods: Horizontal white-to-white corneal diameter of 20 volunteers was measured at three different fixed times of a day with three methods: Scheimpflug method (Pentacam HR, Oculus), placido based topography (Keratograph 5M, Oculus) and manual method using an image analysis software at a slitlamp (BQ900, Haag-Streit). Results: The two-factorial analysis of variance could not show a significant effect of the different instruments (p = 0.117), the different time points (p = 0.506) and the interaction between instrument and time point (p = 0.182). Very good repeatability (intraclass correlation coefficient ICC, quartile coefficient of dispersion QCD) was found for all three devices. However, manual slitlamp measurements showed a higher QCD than the automatic measurements with the Keratograph 5M and the Pentacam HR at all measurement times. Conclusion: The manual and automated methods used in the study to determine corneal diameter showed good agreement and repeatability. No significant diurnal variations of corneal diameter were observed during the period of time studied.}, language = {en} } @article{KnoedlerRuehlEmontsetal.2019, author = {Kn{\"o}dler, Matthias and R{\"u}hl, Clemens and Emonts, Jessica and Buyel, Johannes Felix}, title = {Seasonal weather changes affect the yield and quality of recombinant proteins produced in transgenic tobacco plants in a greenhouse setting}, series = {Frontiers in Plant Science}, journal = {Frontiers in Plant Science}, number = {10}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {1664-462X (online-ressource)}, doi = {10.3389/fpls.2019.01245}, pages = {13 Seiten}, year = {2019}, abstract = {Transgenic plants have the potential to produce recombinant proteins on an agricultural scale, with yields of several tons per year. The cost-effectiveness of transgenic plants increases if simple cultivation facilities such as greenhouses can be used for production. In such a setting, we expressed a novel affinity ligand based on the fluorescent protein DsRed, which we used as a carrier for the linear epitope ELDKWA from the HIV-neutralizing antibody 2F5. The DsRed-2F5-epitope (DFE) fusion protein was produced in 12 consecutive batches of transgenic tobacco (Nicotiana tabacum) plants over the course of 2 years and was purified using a combination of blanching and immobilized metal-ion affinity chromatography (IMAC). The average purity after IMAC was 57 ± 26\% (n = 24) in terms of total soluble protein, but the average yield of pure DFE (12 mg kg-1) showed substantial variation (± 97 mg kg-1, n = 24) which correlated with seasonal changes. Specifically, we found that temperature peaks (>28°C) and intense illuminance (>45 klx h-1) were associated with lower DFE yields after purification, reflecting the loss of the epitope-containing C-terminus in up to 90\% of the product. Whereas the weather factors were of limited use to predict product yields of individual harvests conducted for each batch (spaced by 1 week), the average batch yields were well approximated by simple linear regression models using two independent variables for prediction (illuminance and plant age). Interestingly, accumulation levels determined by fluorescence analysis were not affected by weather conditions but positively correlated with plant age, suggesting that the product was still expressed at high levels, but the extreme conditions affected its stability, albeit still preserving the fluorophore function. The efficient production of intact recombinant proteins in plants may therefore require adequate climate control and shading in greenhouses or even cultivation in fully controlled indoor farms.}, language = {en} } @phdthesis{Emonts2013, author = {Emonts, Jessica}, title = {Searching for many defective edges in hypergraphs}, publisher = {Rheinisch-Westf{\"a}lischen Technischen Hochschule Aachen}, address = {Aachen}, pages = {VIII, 104 Seiten : Ill.}, year = {2013}, language = {en} } @article{BernauKnoedlerEmontsetal.2022, author = {Bernau, C. R. and Kn{\"o}dler, Matthias and Emonts, Jessica and J{\"a}pel, Ronald Colin and Buyel, Johannes Felix}, title = {The use of predictive models to develop chromatography-based purification processes}, series = {Frontiers in Bioengineering and Biotechnology}, journal = {Frontiers in Bioengineering and Biotechnology}, number = {10}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2296-4185 (online-ressource)}, doi = {10.3389/fbioe.2022.1009102}, pages = {25 Seiten}, year = {2022}, abstract = {Chromatography is the workhorse of biopharmaceutical downstream processing because it can selectively enrich a target product while removing impurities from complex feed streams. This is achieved by exploiting differences in molecular properties, such as size, charge and hydrophobicity (alone or in different combinations). Accordingly, many parameters must be tested during process development in order to maximize product purity and recovery, including resin and ligand types, conductivity, pH, gradient profiles, and the sequence of separation operations. The number of possible experimental conditions quickly becomes unmanageable. Although the range of suitable conditions can be narrowed based on experience, the time and cost of the work remain high even when using high-throughput laboratory automation. In contrast, chromatography modeling using inexpensive, parallelized computer hardware can provide expert knowledge, predicting conditions that achieve high purity and efficient recovery. The prediction of suitable conditions in silico reduces the number of empirical tests required and provides in-depth process understanding, which is recommended by regulatory authorities. In this article, we discuss the benefits and specific challenges of chromatography modeling. We describe the experimental characterization of chromatography devices and settings prior to modeling, such as the determination of column porosity. We also consider the challenges that must be overcome when models are set up and calibrated, including the cross-validation and verification of data-driven and hybrid (combined data-driven and mechanistic) models. This review will therefore support researchers intending to establish a chromatography modeling workflow in their laboratory.}, language = {en} } @article{EmontsBuyel2023, author = {Emonts, Jessica and Buyel, Johannes Felix}, title = {An overview of descriptors to capture protein properties - Tools and perspectives in the context of QSAR modeling}, series = {Computational and Structural Biotechnology Journal}, journal = {Computational and Structural Biotechnology Journal}, number = {21}, publisher = {Research Network of Computational and Structural Biotechnology}, address = {Gotenburg}, issn = {2001-0370 (online-ressource)}, doi = {10.1016/j.csbj.2023.05.022}, pages = {3234 -- 3247}, year = {2023}, abstract = {Proteins are important ingredients in food and feed, they are the active components of many pharmaceutical products, and they are necessary, in the form of enzymes, for the success of many technical processes. However, production can be challenging, especially when using heterologous host cells such as bacteria to express and assemble recombinant mammalian proteins. The manufacturability of proteins can be hindered by low solubility, a tendency to aggregate, or inefficient purification. Tools such as in silico protein engineering and models that predict separation criteria can overcome these issues but usually require the complex shape and surface properties of proteins to be represented by a small number of quantitative numeric values known as descriptors, as similarly used to capture the features of small molecules. Here, we review the current status of protein descriptors, especially for application in quantitative structure activity relationship (QSAR) models. First, we describe the complexity of proteins and the properties that descriptors must accommodate. Then we introduce descriptors of shape and surface properties that quantify the global and local features of proteins. Finally, we highlight the current limitations of protein descriptors and propose strategies for the derivation of novel protein descriptors that are more informative.}, language = {en} } @book{Heuermann2024, author = {Heuermann, Holger}, title = {Microwave technology: field simulation, non-linear circuit technology, components and subsystems, plasma technology, antennas and propagation}, publisher = {Springer}, address = {Wiesbaden}, isbn = {978-3-658-45685-6}, doi = {10.1007/978-3-658-45686-3}, pages = {XII, 391 Seiten}, year = {2024}, abstract = {The book covers various numerical field simulation methods, nonlinear circuit technology and its MF-S- and X-parameters, as well as state-of-the-art power amplifier techniques. It also describes newly presented oscillators and the emerging field of GHz plasma technology. Furthermore, it addresses aspects such as waveguides, mixers, phase-locked loops, antennas, and propagation effects, in combination with the bachelor's book 'High-Frequency Engineering,' encompassing all aspects related to the current state of GHz technology.}, language = {en} } @misc{BrotsackPettrak2014, author = {Brotsack, Raimund and Pettrak, J{\"u}rgen}, title = {Mikrobiologische Biomethan-Erzeugung mit Wasserstoff aus der thermischen Vergasung von kohlenstoffhaltigen Einsatzstoffen}, year = {2014}, abstract = {Die vorliegende Erfindung betrifft ein energieeffizientes, umweltfreundliches und kosteng{\"u}nstiges, vorzugsweise kontinuierliches Verfahren zur Herstellung von Biomethan aus kohlenstoffhaltigen Einsatzstoffen durch die Kombination der thermischen Vergasung mit mikrobiologischer Methan-Erzeugung.}, language = {de} } @phdthesis{Pettrak2010, author = {Pettrak, J{\"u}rgen}, title = {Nutzung nachwachsender Rohstoffe bei der Herstellung thermoplastischer Elastomere aus Folgeprodukten der Olefinmetathese}, publisher = {Technische Universit{\"a}t M{\"u}nchen}, address = {M{\"u}nchen}, pages = {137 Seiten}, year = {2010}, abstract = {Metathese von {\"O}ls{\"a}ure und Derivaten ist ein interessanter Weg f{\"u}r die Synthese bifunktioneller Verbindungen aus nachwachsenden Rohstoffen. Verwendet wurden Ru-Katalysatoren der zweiten Generation, welche eine hohe Toleranz gegen{\"u}ber funktionellen Gruppen und Verunreinigungen aufweisen. Trotz des Einsatzes technischer Edukte waren Umsetzungen mit niedrigen Katalysatormengen (0.001 - 0.01 mol-\%) m{\"o}glich, mit Ausbeuten entsprechend der Literatur. Kreuzmetathesen erm{\"o}glichten variable Kettenl{\"a}ngen und Funktionalit{\"a}ten der Monomere, die Produktgewinnung ist jedoch aufw{\"a}ndig. Selbstmetathese lieferte C18-bifunktionelle Verbindungen, welche einfach durch Destillation oder Kristallisation isoliert werden k{\"o}nnen. Neben der katalystischen Umsetzung wurde auch die Produktgewinnung untersucht und f{\"u}r ausgew{\"a}hlte Produkte auch im gr{\"o}ßeren Maßstab durchgef{\"u}hrt.}, language = {de} } @article{RieplPettrakFaulstichetal.2010, author = {Riepl, Herbert Matthias and Pettrak, J{\"u}rgen and Faulstich, Martin and Herrmann, Wolfgang Anton}, title = {Self metathesis of fatty alcohols and amines to provide monomers for polyester and polyamide products}, series = {Macromolecular Symposia}, volume = {293}, journal = {Macromolecular Symposia}, number = {1}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1521-3900 (eISSN)}, doi = {10.1002/masy.200900041}, pages = {39 -- 42}, year = {2010}, abstract = {Self metathesis of oleochemicals offers a variety of bifunctional compounds, that can be used as monomer for polymer production. Many precursors are in huge scales available, like oleic acid ester (biodiesel), oleyl alcohol (tensides), oleyl amines (tensides, lubricants). We show several ways to produce and separate and purify C18-α,ω-bifunctional compounds, using Grubbs 2nd Generation catalysts, starting from technical grade educts.}, language = {en} } @book{Pettrak2014, author = {Pettrak, J{\"u}rgen}, title = {Nutzung nachwachsender Rohstoffe bei der Herstellung thermoplastischer Elastomere aus Folgeprodukten der Olefinmetathese}, publisher = {Attenkofer}, address = {Straubing}, isbn = {978-3-942742-35-1}, pages = {147 Seiten}, year = {2014}, language = {de} } @article{GrosshauserPettrak2023, author = {Großhauser, Christian and Pettrak, J{\"u}rgen}, title = {Die Rolle des Wasserstoffs in der Abwasserbehandlung}, series = {Wasser und Abfall}, journal = {Wasser und Abfall}, number = {7/8}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, issn = {1436-9095}, doi = {10.1007/s35152-023-1444-4}, year = {2023}, abstract = {Die Bereitstellung von nachhaltig erzeugtem Wasserstoff als Energietr{\"a}ger und Rohstoff ist eine wichtige Schl{\"u}sseltechnologie sowohl als Ersatz f{\"u}r fossile Energietr{\"a}ger, aber auch als Produkt im Zusammenhang mit Kreislaufprozessen. In der Abwasserbehandlung bestehen verschiedene M{\"o}glichkeiten Wasserstoff herzustellen. Mehrere Wege, m{\"o}gliche Synergien, aber auch deren Nachteile werden vorgestellt.}, language = {de} } @misc{DegeringWielandIslametal.2024, author = {Degering, Christian and Wieland, Susanne and Islam, Shohana and Lindner, Claudia and Bongaerts, Johannes and Siegert, Petra and Falkenberg, Fabian}, title = {Wasch- und Reinigungsmittel enthaltend Protease (aus Metabacillus indicus)}, year = {2024}, abstract = {Die Erfindung liegt auf dem Gebiet der Enzymtechnologie. Die Erfindung betrifft Proteasen aus Metabacillus indicus, die insbesondere im Hinblick auf den Einsatz in Wasch- und Reinigungsmitteln verwendet werden k{\"o}nnen, alle hinreichend {\"a}hnlichen Proteasen mit einer entsprechend {\"a}hnlichen Sequenz zu SEQ ID NO:1 und f{\"u}r sie codierende Nukleins{\"a}uren. Die Erfindung betrifft ferner deren Herstellung sowie Verfahren zur Verwendung dieser Proteasen, deren Verwendung als solche sowie diese enthaltende Mittel, insbesondere Wasch- und Reinigungsmittel.}, language = {de} } @misc{DegeringWielandIslametal.2024, author = {Degering, Christian and Wieland, Susanne and Islam, Shohana and Lindner, Claudia and Siegert, Petra and Falkenberg, Fabian and Bongaerts, Johannes}, title = {Wasch- und Reinigungsmittel enthaltend Protease (aus Fictibacillus arsenicus)}, year = {2024}, abstract = {Die Erfindung liegt auf dem Gebiet der Enzymtechnologie. Die Erfindung betrifft Proteasen aus Fictibacillus arsenicus, die insbesondere im Hinblick auf den Einsatz in Wasch- und Reinigungsmitteln verwendet werden k{\"o}nnen, alle hinreichend {\"a}hnlichen Proteasen mit einer entsprechend {\"a}hnlichen Sequenz zu SEQ ID NO:1 und f{\"u}r sie codierende Nukleins{\"a}uren. Die Erfindung betrifft ferner deren Herstellung sowie Verfahren zur Verwendung dieser Proteasen, deren Verwendung als solche sowie diese enthaltende Mittel, insbesondere Wasch- und Reinigungsmittel.}, language = {de} } @incollection{Stapenhorst2019, author = {Stapenhorst, Carolin}, title = {Werkzeuge und ihre Wirkungsmacht}, series = {Werkbund Akademiereihe. hefte 19-20 / 2017-2018}, booktitle = {Werkbund Akademiereihe. hefte 19-20 / 2017-2018}, editor = {Deutscher Werkbund NW e.V.,}, isbn = {978-3-00-062587-9}, pages = {62 -- 74}, year = {2019}, language = {de} } @book{SohnThammHeimannetal.2024, author = {Sohn, Olivia and Thamm, Titus and Heimann, Lara and Andug, Abdullah and Stahl, Johannes and Schultwessel, Tim}, title = {Aachener Online-Schriften Wirtschaft und Recht. Band 8. 01/2024}, editor = {Kroll-Ludwigs, Kathrin and Bassen-Metz, Yasmine and Bernecker, Andreas and Eggert, Mathias and Fritz, Thomas and Golland, Alexander and H{\"o}hne, Tim and Tran, Duc Hung and Vogt, J{\"u}rgen}, publisher = {FH Aachen / Fachbereich Wirtschaftswissenschaften}, address = {Aachen}, publisher = {Fachhochschule Aachen}, pages = {380 Seiten}, year = {2024}, abstract = {1. Auswirkungen des europ{\"a}ischen Data Act: Untersuchung des Verh{\"a}ltnisses zwischen Datenzugang und Datenschutz - Olivia Sohn | Seite 4-58 2. Detecting companies' willingness to invest in their sustainable transformation - relevant factors and their evaluation - Titus Thamm |Seite 59-107 3. Unterschiede in den arbeitsbezogenen Wertvorstellungen der Generation Y und Z? Don't believe the hype - Lara Heimann | Seite 108-199 4. Die virtuelle Mitgliederversammlung beim eingetragenen Verein - ein Modell f{\"u}r die Zukunft? - Abdullah Andug | Seite 200-253 5. Die AGB-Kontrolle von Rechtswahlklauseln in der deutschen und europ{\"a}ischen Kontrollpraxis - Effektiver Verbraucherschutz oder zus{\"a}tzliche Rechtsunsicherheit? - Johannes Stahl | Seite 254-325 6. Datenzugangs-und Nutzungsrechte durch den EU Data Act am Beispiel der Automobilbranche - Tim Schultwessel | Seite 326-380}, language = {de} } @incollection{Stapenhorst2011, author = {Stapenhorst, Carolin}, title = {Identit{\`a} di paesaggi nascosti}, series = {La casa. Le forme dello stare}, booktitle = {La casa. Le forme dello stare}, editor = {Monestiroli, Antonio and Semerani, Luciano}, publisher = {Skira}, address = {Mailand}, isbn = {978-88-572-1006-3}, pages = {92 -- 101}, year = {2011}, language = {it} } @techreport{StapenhorstVanDenBerghGoliaschetal.2016, author = {Stapenhorst, Carolin and Van Den Bergh, Wim and Goliasch, Simon and K{\"u}hnle, Christian and L{\"a}ufer, Jonas and Ring, Jana and Schmalt, Nicola}, title = {Roman traces for cross-border identification}, series = {Design Strategies for Transforming Cross-Border Regions}, journal = {Design Strategies for Transforming Cross-Border Regions}, pages = {5}, year = {2016}, abstract = {The research group focuses on the characteristics in the land-and cityscapes of the Drielanden-zone, which contribute to generate common identities, as well as on those features that trigger differences and specificities of the adjacent countries that enrich the perception of the zone. In this research, the instruments of cartography and land survey system serve to detect and localize the fragmented appearance of relevant historic elements. These analytic procedures help to develop strategies for infrastructures and processes that gradually initiate local forms of cross-border tourism. The architectural research displays how top-down and bottom-up interventions can be combined in order to guarantee a sustainable use and development of the considered area.}, language = {en} } @incollection{Stapenhorst2016, author = {Stapenhorst, Carolin}, title = {La Land Art come forma di cartografia applicata / Land Art as a Form of Applied Cartography}, series = {Tracciare piani, disegnare carte / Sketching plans, drawing maps}, booktitle = {Tracciare piani, disegnare carte / Sketching plans, drawing maps}, editor = {Palma, Riccardo and Dutto, Andrea Alberto}, publisher = {Accademia University Press}, address = {Turin}, isbn = {978-88-99982-24-9}, pages = {195}, year = {2016}, language = {it} } @book{Stapenhorst2016, author = {Stapenhorst, Carolin}, title = {Cento Tavole}, publisher = {RWTH Aachen}, address = {Aachen}, pages = {50 Seiten}, year = {2016}, language = {de} } @incollection{GuggerStapenhorst2008, author = {Gugger, Harry and Stapenhorst, Carolin}, title = {From city to detail: the sphere of the architect}, series = {Explorations in architecture}, booktitle = {Explorations in architecture}, editor = {Geiser, Reto}, publisher = {Birkh{\"a}user}, address = {Basel}, isbn = {978-3-7643-8921-5}, pages = {50 -- 53}, year = {2008}, language = {en} } @inproceedings{DiIorioNobileStapenhorst2010, author = {Di Iorio, Marina and Nobile, Maria Luna and Stapenhorst, Carolin}, title = {Martinella}, series = {Edifici alti e paesaggio}, booktitle = {Edifici alti e paesaggio}, editor = {Bovati, Marco and Di Franco, Andrea}, publisher = {Maggioli}, address = {Santarcangelo di Romagna}, isbn = {978-88-387-4434-1}, pages = {191 -- 202}, year = {2010}, language = {it} } @article{RakeEnningKurthetal.1994, author = {Rake, Heinrich and Enning, Manfred and Kurth, Johannes and Schr{\"o}der, Walter}, title = {Automatic uncoupler completes automation at the hump}, series = {RGI - Railway Gazette International}, volume = {150}, journal = {RGI - Railway Gazette International}, number = {6}, publisher = {Reed Business}, address = {Sutton}, issn = {0373-5346}, pages = {371 -- 374}, year = {1994}, language = {en} } @article{RakeSchwanhaeusserFrederichetal.1993, author = {Rake, Heinrich and Schwanh{\"a}ußer, Wulf and Frederich, Fritz and Enning, Manfred}, title = {Automatisierung von Ablaufanlagen mit dem Kupplungsroboter}, series = {ETR - Eisenbahntechnische Rundschau}, journal = {ETR - Eisenbahntechnische Rundschau}, number = {4}, publisher = {DVV Media Group}, address = {Hamburg}, issn = {0013-2845}, pages = {249 -- 254}, year = {1993}, language = {de} } @inproceedings{EnningHilgers2023, author = {Enning, Manfred and Hilgers, Rudolf}, title = {Die Assistierte Bremsprobe als Br{\"u}cke zur Vollautomatisierung des Schieneng{\"u}terverkehrs}, series = {IRSA 2023: Tagungsband, Proceedings}, booktitle = {IRSA 2023: Tagungsband, Proceedings}, editor = {Nießen, Nils and Schindler, Christian}, publisher = {RWTH Aachen}, address = {Aachen}, doi = {10.18154/RWTH-2024-00257}, pages = {60 -- 75}, year = {2023}, language = {de} } @article{ManfredMaySutter2020, author = {Manfred, Enning and May, J{\"o}rg and Sutter, Stefan}, title = {Innovation am G{\"u}terwagen am Beispiel der Automatischen Bremsprobe}, series = {ETR - Eisenbahntechnische Rundschau}, journal = {ETR - Eisenbahntechnische Rundschau}, number = {12}, publisher = {DVV Media Group}, address = {Hamburg}, issn = {0013-2845}, pages = {14 -- 19}, year = {2020}, abstract = {Mit der Digitalen Automatischen Kupplung beginnt ein neues Kapitel des Schieneng{\"u}terverkehrs, in dem zusammengestellte Wagen sich automatisch in wenigen Minuten abfahrbereit machen, ohne dass der Mensch eingreifen muss. Eines des gr{\"o}ßten Hemmnisse der umweltfreundlichen Schiene wird dann entfallen. Notwendig ist jetzt eine Diskussion {\"u}ber den Umfang und die Systemgrenzen der Automatischen Bremsprobe.}, language = {de} } @article{EnningSchmidtWilbring2019, author = {Enning, Manfred and Schmidt, Bernd and Wilbring, Daniela}, title = {Auf dem Weg zur autonomen Anschlussbedienung}, series = {Privatbahn-Magazin}, journal = {Privatbahn-Magazin}, number = {3}, publisher = {Bahn Media}, address = {Suhlendorf}, issn = {1865-0163}, pages = {40 -- 43}, year = {2019}, language = {de} } @inproceedings{PfaffSchmidtWilbringetal.2019, author = {Pfaff, Raphael and Schmidt, Bernd and Wilbring, Daniela and Franzen, Julian}, title = {Wagon4.0 - the smart wagon for improved integration into Industry 4.0 plants}, series = {Proceedings of the International Heavy Haul Association STS Conference 2019}, booktitle = {Proceedings of the International Heavy Haul Association STS Conference 2019}, pages = {7 Seiten}, year = {2019}, abstract = {In many instances, freight vehicles exchange load or information with plants that are or will soon be Industry4.0 plants. The Wagon4.0 concept, as developed in close cooperation with e.g. port or mine operations, offers a maximum in railway operational efficiency while providing strong business cases already in the respective plant interaction. The Wagon4.0 consists of main components, a power supply, data network, sensors, actuators and an operating system, the so called WagonOS. The Wagon OS is implemented in a granular, self-sufficient manner, to allow basic features such as WiFi-Mesh and train christening in remote areas without network connection. Furthermore, the granularity of the operating system allows to extend the familiar app concept to freight rail rolling stock, making it possible to use specialised actuators for certain applications, e.g. an electrical parking brake or an auxiliary drive. In order to facilitate migration to the Wagon4.0 for existing fleets, a migration concept featuring five levels of technical adaptation was developed. The present paper investigates the benefits of Wagon4.0-implementations for the particular challenges of heavy haul operations by focusing on train christening, ep-assisted braking, autonomous last mile and traction boost operation as well as improved maintenance schedules}, language = {en} } @inproceedings{WilbringEnningPfaffetal.2019, author = {Wilbring, Daniela and Enning, Manfred and Pfaff, Raphael and Schmidt, Bernd}, title = {Neue Perspektiven f{\"u}r die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation}, series = {IRSA 2019: Tagungsband, Proceedings}, booktitle = {IRSA 2019: Tagungsband, Proceedings}, editor = {de Doncker, Rik W. and Nießen, Nils and Schindler, Christian}, publisher = {RWTH Aachen}, address = {Aachen}, doi = {10.18154/RWTH-2020-00014}, pages = {128 -- 142}, year = {2019}, abstract = {Deutschland braucht mehr Eisenbahn um CO2-Emissionen aus dem Verkehr zu reduzieren. Sie muss zum R{\"u}ckgrat aktueller Logistikprozesse, z.B. bei Kaufmannsg{\"u}tern und E-Commerce, werden. Dies geht nicht ohne neuartige betriebliche Konzepte und eine Transformation des G{\"u}terwagens von einem „dummen St{\"u}ck Stahl" zu einem modernen Werkzeug der Logistik. Als „G{\"u}terwagen 4.0" wird ein kommunikativer und kooperativer G{\"u}terwagen verstanden, der die Voraussetzung zur Automatisierung aller Prozesse der Zugvorbereitung bereitstellt, sich aber ansonsten vollkommen kompatibel mit heutigen Betriebsverfahren im Hauptlauf pr{\"a}sentiert. Durch Kommunikation zwischen G{\"u}terwagen und umgebenden intelligenten Systemen im Sinne eines „Internet der Dinge" gelingt damit unter Anderem die Realisierung hoch effizienter Gleisanschlussverkehre, die der G{\"u}terbahn neue M{\"a}rkte abseits der klassisch bahn-affinen Verkehre erschließen und letztlich den Wandel zu einer nachhaltigen G{\"u}termobilit{\"a}t f{\"o}rdern.}, language = {de} } @article{EnningPfaff2017, author = {Enning, Manfred and Pfaff, Raphael}, title = {G{\"u}terwagen 4.0 - Mehr als nur technischer Fortschritt}, series = {Privatbahn-Magazin}, journal = {Privatbahn-Magazin}, number = {2}, publisher = {Bahn Media}, address = {Suhlendorf}, issn = {1865-0163}, pages = {21 -- 25}, year = {2017}, abstract = {Lokomotiven sind dank modernster Konzepte der Antriebstechnik heute energiesparend und umweltfreundlich. Eine Ausr{\"u}stung mit Telematik und Assistenzfunktionen ist Standard. Auf der Strecke zeigt sich moderne Technik in Form elektronischer Stellwerke und Zugsicherungssysteme und in Rangier- und Abstellanlagen als EOW-Technik. Am G{\"u}terwagen hingegen ist der technische Fortschritt komplett vorbeigegangen. Auch beim modernsten Wagen (Abb. 1) ist die einzige „Automatik"-Funktion die zentral {\"u}ber die Hauptluftleitung (HL) versorgte und bet{\"a}tigte Luftbremse.}, language = {de} } @article{EnningPfaff2016, author = {Enning, Manfred and Pfaff, Raphael}, title = {Digitalisierung bringt mehr G{\"u}ter auf die Schiene}, series = {Sonderprojekte ATM/MTZ}, volume = {21}, journal = {Sonderprojekte ATM/MTZ}, number = {6 (suppl.)}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, issn = {2509-4610}, doi = {10.1007/s41491-016-0570-7}, pages = {34 -- 37}, year = {2016}, language = {de} } @incollection{Stapenhorst2014, author = {Stapenhorst, Carolin}, title = {Organizzare l'addizione}, series = {Atlante di progettazione architettonica}, booktitle = {Atlante di progettazione architettonica}, editor = {Palma, Riccardo and Ravagnati, Carlo}, publisher = {Citt{\`a}StudiEdizioni}, address = {Mailand}, isbn = {978-88-251-7385-7}, pages = {490 -- 505}, year = {2014}, language = {it} } @phdthesis{Stapenhorst2012, author = {Stapenhorst, Carolin}, title = {The concept as an operant instrument within the interdisciplinarity of the architectural design process}, publisher = {Politecnico di Torino}, address = {Turin}, pages = {242 Seiten}, year = {2012}, abstract = {In the introduction to their book "What is philosophy?" Gilles Deleuze and Felix Guattari deplore the inflationary and trivialised use of the term concept: "Finally, the most shameful moment came when computer science, marketing, design and advertising, all the disciplines of communication, seized hold of the word concept itself and said: 'This is our concern, we are the creative ones, we are the ideas men! We are the friends of the concept, we put in our computers.' " This doctoral thesis shares the concern of Gilles Deleuze and Felix Guattari, but still, it is a thesis in architecture and thus collocated within the field of the representatives of the "ideas men". It engages in architectural design theory, and refers in particular to the investigation of methodological approaches within the design process. Therefore, the thesis will not contribute to the philosophical dimension of the term, but intends to overcome its imprecise use within the architectural discourse, in compliance with Eug{\`e}ne Viollet-le-Duc's admonition relative to vague definitions: "Dans les arts, et dans l'architecture en particulier, les d{\´e}finitions vagues ont caus{\´e} bien des erreurs, ont laiss{\´e} germer bien des pr{\´e}jug{\´e}s, enraciner bien des id{\´e}es fausses. On met un mot en avant, chacun y attache un sens diff{\´e}rent." The term concept in architecture is very often used as pure marketing collateral, it serves to sell an idea, a product, a design. Its functional applicability is reduced to a special manner of illustration, produced as one of the various design presentation documents at the end of the design process. In contrast, the original contribution of this thesis aims to give a precise, instrumental dimension to the term concept: the concept is the expression of a specific logic, capable to guide the decisional sequences of the process and thus to improve the quality of the designed projects. The motivation to define a specific instrumentality of the concept is closely connected to the issue of interdisciplinarity in the architects' profession. The interdisciplinary character of the architectural field is widely accepted and discussed as such, but the thesis intends to give a more precise definition of the various kinds of competences involved by classifying them into either the internal or the external group. The traditional notion of interdisciplinarity, predominantly seen as collaboration between architects and technical experts, and, most notably, the historical, sometimes contentious, relationship between architects and engineers is described. Referring to recent developments, the transformation of the architect's role within the professional sphere, marked by an increasing importance of diverse influences and linked to a growing risk of marginalisation, is illustrated. The thesis describes different ways to adapt to this specific kind of interdisciplinarity, which generally requires the architect's ability to connect and to integrate various contents, different points of view and diverse scales. On the other hand, the big potential which is implicit in the interdisciplinary field is exposed: architects can inform their core competence, the design, by extracting contents of different disciplinary competences, pertaining or not pertaining to their own professional field. They have the possibility to cross fields of external competences in a selective way and by doing so they can build up a corpus of knowledge capable to generate and communicate guidelines and systematic methodologies for their design. At the end, the analysis of these two aspects allows the definition of a more specific professional profile of the architect as specialist of interdisciplinarity. The thesis is concerned with the theories around the design process. The design process is seen as open to inspection and critical evaluation, with major focus on the decisional sequences which characterise it. It concentrates on the process' descriptiveness and the degree of self-conscious approaches applied within it. The importance of regulative, strategic mechanisms is illustrated by testimonies taken from a series of design researches and leads to the functional definition of the figure of the concept as representation of a coherent set of ideas, as generator of a project-specific system of rules and as communicator of decisional strategies. The concept's function is furthermore defined as communicative interface which generates and transmits the system of rules authoritative for all the disciplinary competences involved in the design process, a communicative interface which constitutes a basis of shared convictions capable to increase the efficiency of collaboration. Furthermore, the concept's capacity to explore and elaborate the contents of external disciplines is identified as a possible methodological approach to innovative design thinking. The approach to a specific functional definition of the concept is continued by the description of a series of instruments that are simultaneously generating and communicating it. It is outlined to which degree the concept itself is already the result of an ideational process, collocated within the initial phase of the design proceedings, serving as a guideline to them, but still continuously evolving and adapting in its progression. In addition, it is illustrated how all the diverse instruments of the concept are operational media through which the knowledge transition between different disciplines can occur. The considerations about the concept as operational instrument of design are elaborated with regard to a number of examples of didactical applications that are particularly involved in the development and teaching of specific design methods. These examples illustrate the interrelations between design theory and design education. They are derived from very different schools of architecture and diverse mindsets, but all of them transmit models of conceptual design thinking.}, language = {en} } @book{Stapenhorst2016, author = {Stapenhorst, Carolin}, title = {Concept : a dialogic instrument in architectural design}, publisher = {Jovis}, address = {Berlin}, isbn = {978-3-86859-364-8}, pages = {207 Seiten}, year = {2016}, abstract = {Concept - this is a key term in architectural discourse. However, all too often it is used imprecisely or merely for marketing purposes. What is a concept actually? This publication moves between design theory and design practice and follows the history of the definition of concept in architecture, leading to the formulation of a specifically instrumental and operative definition. It bases concept in architecture on its strategic potential in design decision-making processes. In the changing profession of the designing architect, decisions are increasingly made in multidisciplinary groups. Concept can serve as a dialogic instrument in the process, making it possible to process heterogeneous information from a range of spheres of knowledge. The effective presentation of selected information becomes a relevant interface in the design process, which has a significant influence on the quality of the design.}, language = {en} } @incollection{Stapenhorst2017, author = {Stapenhorst, Carolin}, title = {Robustheit}, series = {Hiatus. Architekturen f{\"u}r die gebrauchte Stadt}, booktitle = {Hiatus. Architekturen f{\"u}r die gebrauchte Stadt}, editor = {Frank, Ute and Lindenmayer, Verena and Loewenberg, Patrick and Rocneanu, Carla}, publisher = {Birkh{\"a}user}, address = {Basel}, isbn = {978-3-0356-1386-5}, pages = {155 -- 164}, year = {2017}, language = {de} } @incollection{Stapenhorst2016, author = {Stapenhorst, Carolin}, title = {Grids. Projektdokumentationen als Denkinstrument}, series = {Manifestationen im Entwurf}, booktitle = {Manifestationen im Entwurf}, editor = {Schmitz, Thomas H. and H{\"a}ußling, Roger and Mareis, Claudia and Groninger, Hannah}, publisher = {Transcript}, address = {Bielefeld}, isbn = {978-3-8394-3160-3}, doi = {10.1515/9783839431603-009}, pages = {185 -- 216}, year = {2016}, language = {de} } @inproceedings{StapenhorstGessnerWoerd2017, author = {Stapenhorst, Carolin and Geßner, Stephan and Woerd, Jan Dirk van der}, title = {ArchitecTours - a close look on structures around us}, series = {Proceedings of IASS Annual Symposia}, booktitle = {Proceedings of IASS Annual Symposia}, editor = {B{\"o}gle, Annette and Grohmann, Manfred}, publisher = {IASS}, address = {Madrid}, issn = {2518-6582}, pages = {9 Seiten}, year = {2017}, abstract = {Architects and civil engineers work together regularly during their professional days and are irreplaceable for each other. This co-operation is sometimes made more difficult by the differences in their disciplinary languages and approaches. Structures are evaluated by architects on the basis of criteria such as spatial impact and usability, while civil engineers analyze them more closely by their bearing and deformation properties, as well as by constructive aspects. This diversity of assessment criteria and approaches is often continued in both academic disciplines in the view on structures. Within the framework of the Exploratory Teaching Space (ETS), a funding program to improve teaching at RWTH Aachen University and to promote new teaching concepts, a project was carried out jointly by the Junior Professorship of Tool-Culture at the Faculty of Architecture and the Institute of Structural Concrete at the Faculty of Civil Engineering. The aim of the project is to present buildings in such a way that the differences in perception between architects and civil engineers are reduced and the common understanding is promoted. The project develops a database, which contains a collection of striking buildings from Aachen and the surrounding area. The buildings are categorized according to terms that come from both disciplinary areas. The collection can be freely explored or crossed through learning trails. The medium of film plays a special role in presenting the buildings. The buildings are assigned to different categories of load bearing structures as linear, planar and spatial structures, and further to different types of material, functional programs and spatial characteristics. Since the buildings are located in the direct vicinity of Aachen, they can be visited by the students. This makes them more sensitive to their environment. Intrinsic motivation, as well as implicit learning is encouraged. The paper will provide a detailed report of the project, its implementation, the feedback of the students and the plans for further development.}, language = {en} } @article{AsarStapenhorst2020, author = {Asar, Hande and Stapenhorst, Carolin}, title = {Zvi Hecker: Drawing on drawing}, series = {Archives of Design Research}, volume = {33}, journal = {Archives of Design Research}, number = {3}, publisher = {Korean Society of Design Science}, address = {Seongnam}, issn = {1226-8046}, doi = {10.15187/adr.2020.08.33.3.45}, pages = {45 -- 53}, year = {2020}, abstract = {Background: Architectural representation, nurtured by the interaction between design thinking and design action, is inherently multi-layered. However, the representation object cannot always reflect these layers. Therefore, it is claimed that these reflections and layerings can gain visibility through 'performativity in personal knowledge', which basically has a performative character. The specific layers of representation produced during the performativity in personal knowledge permit insights about the 'personal way of designing' [1]. Therefore, the question, 'how can these layered drawings be decomposed to understand the personal way of designing', can be defined as the beginning of the study. On the other hand, performativity in personal knowledge in architectural design is handled through the relationship between explicit and tacit knowledge and representational and non-representational theory. To discuss the practical dimension of these theoretical relations, Zvi Hecker's drawing of the Heinz-Galinski-School is examined as an example. The study aims to understand the relationships between the layers by decomposing a layered drawing analytically in order to exemplify personal ways of designing. Methods: The study is based on qualitative research methodologies. First, a model has been formed through theoretical readings to discuss the performativity in personal knowledge. This model is used to understand the layered representations and to research the personal way of designing. Thus, one drawing of Hecker's Heinz-Galinski-School project is chosen. Second, its layers are decomposed to detect and analyze diverse objects, which hint to different types of design tools and their application. Third, Zvi Hecker's statements of the design process are explained through the interview data [2] and other sources. The obtained data are compared with each other. Results: By decomposing the drawing, eleven layers are defined. These layers are used to understand the relation between the design idea and its representation. They can also be thought of as a reading system. In other words, a method to discuss Hecker's performativity in personal knowledge is developed. Furthermore, the layers and their interconnections are described in relation to Zvi Hecker's personal way of designing. Conclusions: It can be said that layered representations, which are associated with the multilayered structure of performativity in personal knowledge, form the personal way of designing.}, language = {en} } @article{StapenhorstZabekHildebrand2018, author = {Stapenhorst, Carolin and Zabek, Magdalena and Hildebrand, Linda}, title = {Communication process and information flow in the architectural planning context}, series = {Creativity game : theory and practice of spatial planning}, journal = {Creativity game : theory and practice of spatial planning}, number = {6}, publisher = {University of Ljubljana}, address = {Ljubljana}, doi = {10.15292/IU-CG.2018.06.066-073}, pages = {66 -- 73}, year = {2018}, abstract = {Against the background of growing data in everyday life, data processing tools become more powerful to deal with the increasing complexity in building design. The architectural planning process is offered a variety of new instruments to design, plan and communicate planning decisions. Ideally the access to information serves to secure and document the quality of the building and in the worst case, the increased data absorbs time by collection and processing without any benefit for the building and its user. Process models can illustrate the impact of information on the design- and planning process so that architect and planner can steer the process. This paper provides historic and contemporary models to visualize the architectural planning process and introduces means to describe today's situation consisting of stakeholders, events and instruments. It explains conceptions during Renaissance in contrast to models used in the second half of the 20th century. Contemporary models are discussed regarding their value against the background of increasing computation in the building process.}, language = {en} } @incollection{Stapenhorst2019, author = {Stapenhorst, Carolin}, title = {Heimat entwerfen?}, series = {Das Eigene und das Fremde - Heimat in Zeiten der Mobilit{\"a}t}, booktitle = {Das Eigene und das Fremde - Heimat in Zeiten der Mobilit{\"a}t}, editor = {Hasse, J{\"u}rgen}, publisher = {Karl Alber}, address = {Baden-Baden}, isbn = {978-3-495-49029-7 (print)}, doi = {10.5771/9783495817568}, pages = {215 -- 246}, year = {2019}, language = {de} } @article{StapenhorstMotta2018, author = {Stapenhorst, Carolin and Motta, Luciano}, title = {Citt{\`a} Olivettiana in Ivrea, Italien}, series = {Bauwelt}, volume = {109}, journal = {Bauwelt}, number = {22}, publisher = {Bauverlag BV}, address = {G{\"u}tersloh}, issn = {0005-6855}, pages = {20 -- 31}, year = {2018}, language = {de} } @article{StapenhorstDutto2016, author = {Stapenhorst, Carolin and Dutto, Andrea Alberto}, title = {Notes on conceptual learning in architecture}, series = {Cartha - The Form of Form}, journal = {Cartha - The Form of Form}, address = {Basel}, year = {2016}, language = {en} } @book{StapenhorstMeerbach2019, author = {Stapenhorst, Carolin and Meerbach, Kerstin}, title = {Studie zur forschungsbezogenen Lehre an der Fakult{\"a}t f{\"u}r Architektur der RWTH Aachen}, publisher = {RWTH Aachen}, address = {Aachen}, doi = {10.18154/rWth-2019-06163}, pages = {140 Seiten}, year = {2019}, language = {de} } @incollection{Stapenhorst2020, author = {Stapenhorst, Carolin}, title = {Multidimensionale Arbeitsbl{\"a}tter}, series = {Artefakte des Entwerfens}, booktitle = {Artefakte des Entwerfens}, editor = {Lyngs{\o} Christensen, Rikke and Drach, Ekkerhard and Gasperoni, Lidia and Hallama, Doris and Hougaard, Anna Katrine and Liptau, Ralf}, publisher = {Universit{\"a}tsverlag der TU Berlin}, address = {Berlin}, isbn = {978-3-7983-3256-0}, issn = {2566-9656}, doi = {10.14279/depositonce-8508.2}, pages = {202 -- 224}, year = {2020}, abstract = {K{\"o}nnen wir Skizzenbl{\"a}tter, die gemischte Systeme von Text und Bildanteilen zeigen, als r{\"a}umliche und zeitliche Verdichtung von Reflexionsmilieus verstehen? Wie wirkt sich die durch die r{\"a}umliche Begrenzung des Blatts bedingte gleichzeitige Anwesenheit von Text und Bild aus, welche Wechselwirkungen entfalten sich? Diese Fragenstellungen f{\"u}hren zur Definition der ‚Multidimensionalen Arbeitsbl{\"a}tter', die als geeignetes Medium der Analyse von entwerferischen Denkprozessen verstanden werden. Anhand von f{\"u}nf Beispielen wird beschrieben, wie durch dekompositorische Prozeduren Zeichnungsgenealogien sichtbar gemacht werden k{\"o}nnen, die intensive Auskunft {\"u}ber Entwurfshandlungen geben.}, language = {de} } @inproceedings{MaurerSejdijaSander2024, author = {Maurer, Florian and Sejdija, Jonathan and Sander, Volker}, title = {Decentralized energy data storages through an Open Energy Database Server}, doi = {10.5281/zenodo.10607895}, pages = {5 Seiten}, year = {2024}, abstract = {In the research domain of energy informatics, the importance of open datais rising rapidly. This can be seen as various new public datasets are created andpublished. Unfortunately, in many cases, the data is not available under a permissivelicense corresponding to the FAIR principles, often lacking accessibility or reusability.Furthermore, the source format often differs from the desired data format or does notmeet the demands to be queried in an efficient way. To solve this on a small scale atoolbox for ETL-processes is provided to create a local energy data server with openaccess data from different valuable sources in a structured format. So while the sourcesitself do not fully comply with the FAIR principles, the provided unique toolbox allows foran efficient processing of the data as if the FAIR principles would be met. The energydata server currently includes information of power systems, weather data, networkfrequency data, European energy and gas data for demand and generation and more.However, a solution to the core problem - missing alignment to the FAIR principles - isstill needed for the National Research Data Infrastructure.}, language = {en} } @inproceedings{MaurerNitschKochemsetal.2024, author = {Maurer, Florian and Nitsch, Felix and Kochems, Johannes and Schimeczek, Christoph and Sander, Volker and Lehnhoff, Sebastian}, title = {Know your tools - a comparison of two open agent-based energy market models}, series = {2024 20th International Conference on the European Energy Market (EEM)}, booktitle = {2024 20th International Conference on the European Energy Market (EEM)}, publisher = {IEEE}, address = {New York, NY}, doi = {10.1109/EEM60825.2024.10609021}, pages = {8 Seiten}, year = {2024}, abstract = {Due to the transition to renewable energies, electricity markets need to be made fit for purpose. To enable the comparison of different energy market designs, modeling tools covering market actors and their heterogeneous behavior are needed. Agent-based models are ideally suited for this task. Such models can be used to simulate and analyze changes to market design or market mechanisms and their impact on market dynamics. In this paper, we conduct an evaluation and comparison of two actively developed open-source energy market simulation models. The two models, namely AMIRIS and ASSUME, are both designed to simulate future energy markets using an agent-based approach. The assessment encompasses modelling features and techniques, model performance, as well as a comparison of model results, which can serve as a blueprint for future comparative studies of simulation models. The main comparison dataset includes data of Germany in 2019 and simulates the Day-Ahead market and participating actors as individual agents. Both models are comparable close to the benchmark dataset with a MAE between 5.6 and 6.4 €/MWh while also modeling the actual dispatch realistically.}, language = {en} } @incollection{ChwallekGoezlerReichert2024, author = {Chwallek, Constanze and Goezler, Kaan and Reichert, Walter}, title = {Handling growth as a complexity driver at Faymonville}, series = {Hidden champions case compendium: Leading global markets - case studies and texts}, booktitle = {Hidden champions case compendium: Leading global markets - case studies and texts}, editor = {B{\"u}chler, Jan-Philipp and Hoon, Christina}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-658-44300-9}, doi = {10.1007/978-3-658-44300-9_14}, pages = {209 -- 221}, year = {2024}, abstract = {The FAYMONVILLE case study describes how the family-owned company Faymonville from eastern Belgium has succeeded in becoming one of the leading manufacturers in its sector. The targeted identification of new markets, the focus on relevant customer needs, and a consistent product policy with a coordinated manufacturing concept lay the foundations for success. In this case study, students can learn about how a company can successfully resolve the fundamental contradiction between economic and customized production.}, language = {en} } @article{KohlKraemerFohryetal.2024, author = {Kohl, Philipp and Kr{\"a}mer, Yoka and Fohry, Claudia and Kraft, Bodo}, title = {Scoping review of active learning strategies and their evaluation environments for entity recognition tasks}, series = {Deep learning theory and applications}, journal = {Deep learning theory and applications}, editor = {Fred, Ana and Hadjali, Allel and Gusikhin, Oleg and Sansone, Carlo}, publisher = {Springer}, address = {Cham}, isbn = {978-3-031-66694-0 (online ISBN)}, doi = {10.1007/978-3-031-66694-0_6}, pages = {84 -- 106}, year = {2024}, abstract = {We conducted a scoping review for active learning in the domain of natural language processing (NLP), which we summarize in accordance with the PRISMA-ScR guidelines as follows: Objective: Identify active learning strategies that were proposed for entity recognition and their evaluation environments (datasets, metrics, hardware, execution time). Design: We used Scopus and ACM as our search engines. We compared the results with two literature surveys to assess the search quality. We included peer-reviewed English publications introducing or comparing active learning strategies for entity recognition. Results: We analyzed 62 relevant papers and identified 106 active learning strategies. We grouped them into three categories: exploitation-based (60x), exploration-based (14x), and hybrid strategies (32x). We found that all studies used the F1-score as an evaluation metric. Information about hardware (6x) and execution time (13x) was only occasionally included. The 62 papers used 57 different datasets to evaluate their respective strategies. Most datasets contained newspaper articles or biomedical/medical data. Our analysis revealed that 26 out of 57 datasets are publicly accessible. Conclusion: Numerous active learning strategies have been identified, along with significant open questions that still need to be addressed. Researchers and practitioners face difficulties when making data-driven decisions about which active learning strategy to adopt. Conducting comprehensive empirical comparisons using the evaluation environment proposed in this study could help establish best practices in the domain.}, language = {en} } @inproceedings{EggertSchwarz2024, author = {Eggert, Matthias and Schwarz, Jakob}, title = {What do enterprise collaboration systems afford to digital startups?}, series = {ECIS 2024 Proceedings}, booktitle = {ECIS 2024 Proceedings}, year = {2024}, abstract = {In recent years, more and more digital startups have been founded and many of them work remotely by applying enterprise collaboration systems (ECS). The study investigates the functional affordances of ECS, particularly Slack, and examines its potential as a virtual office environment for cultural development in digital startups. Through a case study and based on affordance theoretical considerations, the paper explores how ECS facilitates remote collaboration, communication, and socialization within digital startups. The findings comprise material properties of ECS (synchrony and asynchrony communication), functional affordances (virtual office and culture development affordances) as well as its realization (through communication practices, openness, and inter-company accessibility) and are conceptualized as a model for ECS affordances in digital startups.}, language = {en} } @article{StapenhorstDutto2020, author = {Stapenhorst, Carolin and Dutto, Andrea Alberto}, title = {Turin: Industriedenkmal wird Kulturzentrum wird Lazarett}, series = {Bauwelt}, volume = {111}, journal = {Bauwelt}, number = {13}, publisher = {Bauverlag BV}, address = {G{\"u}tersloh}, issn = {0005-6855}, pages = {56 -- 59}, year = {2020}, language = {de} } @incollection{EbertSchneiderStapenhorst2022, author = {Ebert, Carola and Schneider, Tatjana and Stapenhorst, Carolin}, title = {Undergraduate Research in Architecture}, series = {The Cambridge Handbook of Undergraduate Research}, booktitle = {The Cambridge Handbook of Undergraduate Research}, editor = {Mieg, Harald A. and Ambos, Elizabeth and Brew, Angela and Galli, Dominique and Lehmann, Judith}, publisher = {Cambridge University Press}, address = {Cambridge}, isbn = {9781108869508}, doi = {10.1017/9781108869508.049}, pages = {355 -- 362}, year = {2022}, abstract = {Architecture is a university subject with educational roots in both the technical university and art/specialized architecture schools, yet it lacks a strong research orientation and is focused on professional expertise. This chapter explores the particular role of research within architectural education in general by discussing two different cases for the implementation of undergraduate research in architecture: during the late 1990s and early 2000s at the University of Sheffield, UK, and during the 2010s at RWTH Aachen University, Germany. These examples illustrate the asynchronous beginnings of similar developments, and also contextualize differences in disciplinary habitus and pedagogical approaches between Sheffield, where research impulses stemmed from within the Architectural Humanities, and Aachen with its strong tradition as a technical university.}, language = {en} } @incollection{Stapenhorst2023, author = {Stapenhorst, Carolin}, title = {The didactic experimentation on housing modules for cycle travellers}, series = {MAACC. Modulo abitativo autosufficiente per cicloviaggiatori e camminatori.}, booktitle = {MAACC. Modulo abitativo autosufficiente per cicloviaggiatori e camminatori.}, editor = {Callegari, Guido and De Giorgi, Claudia and Occelli, Chiara L.M. and Palma, Riccardo}, publisher = {LetteraVentidue Edizioni Srl}, address = {Siracusa}, isbn = {978-88-6242-778-4}, pages = {40 -- 44}, year = {2023}, language = {en} } @inproceedings{YanStreseChwallek2018, author = {Yan, Zexiong and Strese, Steffen and Chwallek, Constanze}, title = {Explorer CEOs: The effect of CEO career variety on large firms' relative exploration orientation}, series = {G-Forum Jahreskonferenz 2018}, booktitle = {G-Forum Jahreskonferenz 2018}, pages = {42 Seiten}, year = {2018}, abstract = {Prior studies demonstrate that firms need to make smart trade-off decisions between exploration and exploitation activities in order to increase performance. Chief executive officers (CEOs) are principal decision makers of a firm's strategic posture. In this study, we theorize and empirically examine how relative exploration orientation of large publicly listed firms varies based on the career variety of their CEOs - that is, how diverse the professional experiences of executives were prior to them becoming CEOs. We further argue that the heterogeneity and structure of the top management team moderates the impact of CEO career variety on firms' relative exploration orientation. Based on multisource secondary data for 318 S\&P 500 firms from 2005 to 2015, we find that CEO career variety is positively associated with relative exploration orientation. Interestingly, CEOs with high career varieties appear to be less effective in pursuing exploration, when they work with highly heterogeneous and structurally interdependent top management teams.}, language = {en} } @inproceedings{HunsdiekChwallek2019, author = {Hunsdiek, Niklas J.A. and Chwallek, Constanze}, title = {External venturing activities and the influence of the chief technology officer}, series = {G-Forum Jahreskonferenz 2019}, booktitle = {G-Forum Jahreskonferenz 2019}, pages = {6 Seiten}, year = {2019}, language = {en} } @inproceedings{ChwallekMaassen2022, author = {Chwallek, Constanze and Maaßen, Franziska}, title = {Cure or blessing? The effect of (non-financial) signals on sustainable venture's funding success}, series = {G-Forum Jahreskonferenz 2022}, booktitle = {G-Forum Jahreskonferenz 2022}, pages = {7 Seiten}, year = {2022}, language = {en} } @article{MikuckiSchulerDigeletal.2023, author = {Mikucki, Jill Ann and Schuler, C. G. and Digel, Ilya and Kowalski, Julia and Tuttle, M. J. and Chua, Michelle and Davis, R. and Purcell, Alicia and Ghosh, D. and Francke, G. and Feldmann, Marco and Espe, C. and Heinen, Dirk and Dachwald, Bernd and Clemens, Joachim and Lyons, W. B. and Tulaczyk, S.}, title = {Field-Based planetary protection operations for melt probes: validation of clean access into the blood falls, antarctica, englacial ecosystem}, series = {Astrobiology}, volume = {23}, journal = {Astrobiology}, number = {11}, publisher = {Liebert}, address = {New York, NY}, issn = {1557-8070 (online)}, doi = {10.1089/ast.2021.0102}, pages = {1165 -- 1178}, year = {2023}, abstract = {Subglacial environments on Earth offer important analogs to Ocean World targets in our solar system. These unique microbial ecosystems remain understudied due to the challenges of access through thick glacial ice (tens to hundreds of meters). Additionally, sub-ice collections must be conducted in a clean manner to ensure sample integrity for downstream microbiological and geochemical analyses. We describe the field-based cleaning of a melt probe that was used to collect brine samples from within a glacier conduit at Blood Falls, Antarctica, for geomicrobiological studies. We used a thermoelectric melting probe called the IceMole that was designed to be minimally invasive in that the logistical requirements in support of drilling operations were small and the probe could be cleaned, even in a remote field setting, so as to minimize potential contamination. In our study, the exterior bioburden on the IceMole was reduced to levels measured in most clean rooms, and below that of the ice surrounding our sampling target. Potential microbial contaminants were identified during the cleaning process; however, very few were detected in the final englacial sample collected with the IceMole and were present in extremely low abundances (∼0.063\% of 16S rRNA gene amplicon sequences). This cleaning protocol can help minimize contamination when working in remote field locations, support microbiological sampling of terrestrial subglacial environments using melting probes, and help inform planetary protection challenges for Ocean World analog mission concepts.}, language = {en} } @masterthesis{Vervekina2024, type = {Bachelor Thesis}, author = {Vervekina, Tatyana}, title = {Designing for Focus : ein Hilfsmittelsystem f{\"u}r Kinder mit AD(H)S}, publisher = {FH Aachen}, address = {Aachen}, pages = {113 Seiten}, year = {2024}, abstract = {Das Projekt widmet sich dem Thema der Aufmerksamkeitsdefizit-Hyperaktivit{\"a}tsst{\"o}rung (ADHS) und Aufmerksamkeitsdefizitst{\"o}rung (ADS) im Kindesalter. Es setzt sich dabei mit den t{\"a}glichen Herausforderungen auseinander, mit denen diese Kinder sowohl im Lernprozess als auch in der famili{\"a}ren Beziehungsdynamik konfrontiert sind. Der entwickelte Konzentrationsbegleiter und das dazugeh{\"o}rige Set basieren auf einer lerntherapeutischen Idee, die ein Gleichgewicht zwischen Konzentration und Entspannung erschafft. Das Gesamtsystem „MonKo" bietet mit dem Konzentrationsbegleiter Unterst{\"u}tzung bei der Alltagsplanung, Priorisierung von Aufgaben und dem Umgang mit Reizen. Der Entspannungsteil des Sets pr{\"a}sentiert sich als „Schatzkiste" mit sensorischen Spielzeugen und ist individuell von Therapeut:innen und Lehrkr{\"a}ften an die Bed{\"u}rfnisse der Kinder anpassbar. Der Konzentrationsbegleiter in der Optik eines liebevollen Monsters soll den Kindern helfen, mit den Herausforderungen neuroatypischen Verhaltens umzugehen und erfolgreich in Schule und Alltag zu sein.}, language = {de} } @masterthesis{vanderBeek2024, type = {Bachelor Thesis}, author = {van der Beek, Lucas}, title = {PRO+SOUND : Kombinationsprodukt bestehend aus Lautsprecher und Projektor}, publisher = {FH Aachen}, address = {Aachen}, pages = {105 Seiten}, year = {2024}, abstract = {PRO+SOUND ist ein tragbares Kombinationsprodukt, bestehend aus Lautsprecher und Projektor, das sowohl privat zum streamen von Filmen, Serien, Musik und Videospielen als auch professionell als Pr{\"a}sentationsger{\"a}t in H{\"o}rs{\"a}len und Konferenzr{\"a}umen genutzt werden kann. Projektoren und Beamer sind groß, schwer, unhandlich und nicht mehr zeitgem{\"a}ß. Die Bedienung der meisten Beamer ist veraltet und kaum digitalisiert. PRO+SOUND l{\"o}st diese Schwachstellen in einem kompakten Produkt und macht das streamen von Inhalten m{\"u}helos und kabellos. Das geringe Gewicht und der kompakte Formfaktor macht die Mitnahme f{\"u}r unterwegs problemlos m{\"o}glich.}, language = {de} } @masterthesis{Spindler2024, type = {Bachelor Thesis}, author = {Spindler, David}, title = {OneHold : mietbares modulares Produktsystem f{\"u}r Haushaltsger{\"a}te bei tempor{\"a}rem Wohnen}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {129 Seiten}, year = {2024}, abstract = {OneHold ist ein kompaktes Produktsystem, welches durch die Nutzung von Modularit{\"a}t Multifunktionalit{\"a}t erreicht, und so Mehrwert bietet, indem es die grundlegenden Aufgaben im Haushalt mit weniger ben{\"o}tigten Komponenten bew{\"a}ltigt. So werden Teile, Raum, Kosten und Ressourcen gespart. OneHold kann in Form von mehreren Modulen flexibel gemietet werden, um die Bed{\"u}rfnisse tempor{\"a}r wohnender Menschen passgenau zu bedienen. Die Power-Einheit mit Elektromotor und Akku wird mit jeweils einem Modul f{\"u}r die zu bew{\"a}ltigende Haushaltsaufgabe verbunden. In dieser Bachelorarbeit wurden neben der Power-Einheit vier Module gestaltet: Staubsauger, Mixer, P{\"u}rierstab, und Akkuschrauber. Das Design von OneHold zelebriert die Achse mit rotierender Funktion als formgebenden Kern des Produkts. Die dynamisch gestreckte zylindrische Form verleiht jeder Modulkonfiguration des Produktsystems ein einheitliches Aussehen.}, language = {de} } @masterthesis{Raabe2024, type = {Bachelor Thesis}, author = {Raabe, Jonas Leander}, title = {caff{\´e} eccezionale for la marzocco : Interiordesign eines Showrooms in K{\"o}ln}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {111 Seiten}, year = {2024}, abstract = {In dem Projekt „caff{\´e} eccezionale for la marzocco" wurde sich mit der Gestaltung eines interaktiven Showrooms f{\"u}r die renommierte Kaffeemaschinenmarke „La Marzocco" auseinandergesetzt. Dieser Showroom befindet sich im Belgischen Viertel in K{\"o}ln und bietet einen einzigartigen Einblick in die Welt des Espressos. Die Zielsetzung: nicht nur die Leidenschaft f{\"u}r Kaffee und sein pr{\"a}zises Handwerk zu teilen, sondern auch auf die dringende Notwendigkeit hinzuweisen, nachhaltige Praktiken im Kaffeeanbau zu f{\"o}rdern. Durch die einzigartige Gestaltung des Showrooms wurde eine Atmosph{\"a}re geschaffen, die Besucher:innen erm{\"o}glicht, die Marke sinnlich zu entdecken und kennenzulernen. Er fungiert nicht nur als Ausstellungsraum f{\"u}r Kaffeemaschinen, sondern auch als Plattform, die die Besuche:innen auf eine interaktive Erlebnisreise durch die Welt des Kaffees f{\"u}hrt.}, language = {de} } @masterthesis{Pilath2024, type = {Bachelor Thesis}, author = {Pilath, Dominik}, title = {Optimierte Schnittmuster in Kleinunternehmen : Konzept zur Branchenverschiebung in der Modeindustrie}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {55 Seiten}, year = {2024}, abstract = {Die vorliegende Arbeit widmet sich Herangehensweisen, die dem Fast-Fashion-Ph{\"a}nomen - einem Trend in der Bekleidungsindustrie, der sich durch immer schnellere Produktion, k{\"u}rzere Produktlebenszyklen und kosteng{\"u}nstigere Massenproduktion auszeichnet, entgegenstehen. Die alternative Herangehensweise orientiert sich am Berufsbild des Maßschneiders. Ein Lasercutter, der f{\"u}r den Arbeitsalltag von Kleinunternehmen in der Kleidungsbranche optimiert ist, {\"u}bernimmt das Ausschneiden von Schnittmustern auf Stoffen. Dies erm{\"o}glicht Unternehmen in der digitalisierten Welt konkurrenzf{\"a}hig zu bleiben, ohne große Aufr{\"u}stungsarbeiten.}, language = {de} } @masterthesis{Koch2024, type = {Bachelor Thesis}, author = {Koch, Ansgar}, title = {Cyberslides : 3D-Printed Footwear}, publisher = {FH Aachen}, address = {Aachen}, pages = {34 Seiten}, year = {2024}, abstract = {Das Projekt Cyberslides zeigt auf, wie freischaffende Designer:innen und konsumbewusste Verbraucher:innen von 3D-Druck und dezentralisierter Produktion profitieren k{\"o}nnen}, language = {de} } @masterthesis{Hucke2024, type = {Bachelor Thesis}, author = {Hucke, Luka}, title = {Einzel-Fahrer:innen F{\"u}hrerhaus : effiziente Raumnutzung in LKW-Fahrerkabinen, optimiert f{\"u}r die Fahrer:innen}, publisher = {FH Aachen}, address = {Aachen}, pages = {89 Seiten}, year = {2024}, abstract = {Die Arbeit widmet sich der Ursprungsanalyse des Fahrer:innenmangels und pr{\"a}sentiert einen L{\"o}sungsansatz durch die Entwicklung einer neu gestalteten Fahrkabine f{\"u}r Lastkraftwagen. Hierbei ber{\"u}cksichtigt das Projekt sowohl die Bed{\"u}rfnisse der Fahrer:innen als auch die Anforderungen der Unternehmer:innen, um den Anforderungen der zuk{\"u}nftigen Generation gerecht zu werden. Die Rolle der Berufskraftfahrer:innen wird sich wandeln, wobei die Aufgaben {\"u}ber das reine F{\"u}hren eines Fahrzeugs hinausgehen. Diese Ver{\"a}nderungen erfordern auch Anpassungen an der Arbeitsumgebung, insbesondere an der Fahrkabine, um das Arbeiten, Wohnen und Schlafen auf begrenztem Raum zu erm{\"o}glichen. M{\"o}glich durch neue Technologien, Richtlinien und neue Herangehensweisen geht der „SOLODRIVER" in den Themen Design und Raumnutzung neue Wege und zeigt damit was in Zukunft m{\"o}glich ist.}, language = {de} } @masterthesis{Maden2024, type = {Bachelor Thesis}, author = {Maden, Seda}, title = {Cape Town : revisiting the Past}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {92 Seiten}, year = {2024}, abstract = {Die Arbeit „Cape Town - Revisiting the Past" setzt sich mit der Vergangenheit von Kapstadt auseinander. Kapstadt ist gepr{\"a}gt von einer beeindruckenden Geografie, Kultur, der Vergangenheit und den Menschen. Eine pers{\"o}nliche Verbindung nach Kapstadt und ein Familienarchiv aus aufbewahrten Publikationen, Postkarten und Fotos erm{\"o}glichen einen Blick in die vergangene Zeit. Verschiedene Materialien aus unterschiedlichen Zeiten werden verbunden und in einen gemeinsamen Kontext gebracht. Unabh{\"a}ngig davon, ob dies der erste Kontakt mit Kapstadt ist oder man den Ort bereits kennt, k{\"o}nnen Dinge neu entdeckt oder wiederentdeckt werden. Die Publikation schafft es mithilfe von Materialien und pers{\"o}nlichen Erinnerungen einen visuellen und informativen Einblick in das damalige Kapstadt zu geben. Dabei wird die Vielfalt der Region gezeigt und ein Gef{\"u}hl eines Lebens vor Ort vermittelt.}, language = {de} } @masterthesis{Meisenberg2024, type = {Bachelor Thesis}, author = {Meisenberg, Anna}, title = {Biodiversit{\"a}t mittels Urban Gardening : eine interaktive Applikation f{\"u}r Pflanzen- und Insektenschutz}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {112 Seiten}, year = {2024}, abstract = {In den vergangenen Jahrzehnten hat sich der R{\"u}ckgang der biologischen Vielfalt aufgrund menschlicher Aktivit{\"a}ten dramatisch beschleunigt. Die dramatische Abnahme wirkt sich enorm auf unsere allgemeine Nahrungsversorgung und die Gesundheit unseres Planeten aus. Das Ziel von „Bloomi" ist es, den Nutzer {\"u}ber die Wichtigkeit der Biodiversit{\"a}t aufzukl{\"a}ren und zur Schaffung von essenziellen Lebensr{\"a}umen f{\"u}r die Arten anzuregen. Der Fokus liegt dabei auf der Gestaltung und Pflege von insekten-, tier- und pflanzenfreundlichen G{\"a}rten, Balkonen und st{\"a}dtischen Freifl{\"a}chen. „Bloomi" bietet dazu umfassende Informationen und Anleitungen. Außerdem kann der Nutzer nicht nur alleine, sondern auch in der Gemeinschaft g{\"a}rtnern und sich {\"u}ber die Plattform organisieren, austauschen und inspirieren lassen.}, language = {de} } @masterthesis{Moskaleva2024, type = {Bachelor Thesis}, author = {Moskaleva, Elizaveta}, title = {Identity : inside a simulation}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {201 Seiten}, year = {2024}, abstract = {Das Bachelorprojekt „Identity, Inside a Simulation" ist eine experimentelle, fotografische Auseinandersetzung mit dem Thema Identit{\"a}t. In einer sich st{\"a}ndig weiter digitalisierenden Welt werden neue Arten der Kommunikation, auch zwischen Mensch und Maschine, erm{\"o}glicht. Diese lassen die Grenzen zwischen Realit{\"a}t und Simulation verschwimmen. In diesem Projekt ist die moderne Frage nach Identit{\"a}t mit dem aktuellen Mittel KI auf neue Darstellungsm{\"o}glichkeiten analysiert worden. Eine Arbeit, die der Frage nachgeht, wie Identit{\"a}t innerhalb einer simulierten Welt verstanden werden kann. Dabei werden Parallelen zu der realen Welt aufgewiesen. Visuell er{\"o}ffnet die Ausstellung eine neue Sichtweise f{\"u}r die Nutzung aktueller Technologien und das Verst{\"a}ndnis von der eigenen Identit{\"a}t.}, language = {de} } @masterthesis{Platzen2024, type = {Bachelor Thesis}, author = {Platzen, Nicolai}, title = {Blue in Green}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {171 Seiten}, year = {2024}, abstract = {Portr{\"a}ts sind allgegenw{\"a}rtig und begegnen uns t{\"a}glich in den verschiedensten Formen und an den verschiedensten Orten. Sie sind zu einem nicht unbedeutenden Aspekt unseres kulturellen und sozialen Lebens geworden. Die Fotografie verspricht dabei eine unverf{\"a}lschte Wiedergabe der Realit{\"a}t. Das Portr{\"a}t fungiert an vielen Stellen sogar als Stellvertreter der abgebildeten Person. Es entsteht eine gewisse parasoziale Vertrautheit zur Abbildung. Allerdings birgt der Prozess des Portr{\"a}tierens zahlreiche Herausforderungen und Beschr{\"a}nkungen: St{\"o}rfaktoren, technischer sowie psychologischer Natur, beeinflussen die Diskrepanz zwischen einer Person und ihrer Abbildung erheblich. „Blue in Green" ist ein installativer Raum, welcher die Rezipient*innen mit besagten St{\"o}rfaktoren konfrontiert, die Vertrautheit mit der Abbildung bricht und so zu einer Auseinandersetzung mit Portr{\"a}ts aus m{\"o}glichst vielen verschiedenen Perspektiven provoziert.}, language = {de} } @masterthesis{Schneide2024, type = {Bachelor Thesis}, author = {Schneide, Mirijana}, title = {Grimms Kram : Illustrative Neuinterpretation sieben traditioneller Grimm M{\"a}rchen}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {227 Seiten}, year = {2024}, abstract = {Inhalt dieses Projektes ist die visuelle Neuinterpretation sieben traditioneller Grimm M{\"a}rchen. Der Fokus liegt auf den Illustrationen, welche von den entsprechenden bestehenden Textinhalten separat begleitet werden. Dem gew{\"a}hlten Illustrationsstil „Pixel-Art" liegt die Intention zugrunde, g{\"a}ngige Darstellungsformen des M{\"a}rchen-Genres aufzubrechen: visuell wird sich bewusst auf das beschr{\"a}nkte Aufl{\"o}sungsverm{\"o}gen von Bildschirmen bezogen. Aufgrund des digitalen Illustrierens wird dies als Stilmittel eingesetzt. Die digitale Darstellungsform wird durch den Druckprozess der Medien in den physischen Raum {\"u}bertragen und so erlebbar gemacht.}, language = {de} } @masterthesis{Stein2024, type = {Bachelor Thesis}, author = {Stein, Hannah}, title = {Tr{\"a}ume hoch, klein Dani!}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {120 Seiten}, year = {2024}, abstract = {"Tr{\"a}ume hoch, klein Dani!" ist ein Pappkinderbuch mit Schieb- und Drehfunktionen f{\"u}r Kinder ab 3 Jahren. Diese Bachelorarbeit beinhaltet das Schreiben einer Kindergeschichte, das Gestalten der Illustrationen, das Konzeptionieren der interaktiven Funktionen und das Binden und Bauen des Buches. Gut gestaltete Kinderb{\"u}cher spielen eine entscheidende Rolle bei der Entwicklung von Kindern. Kinderb{\"u}cher f{\"o}rdern die Sprachentwicklung, unterst{\"u}tzen kritisches Denken, lehren wichtige Werte und Moral, beg{\"u}nstigen das Lernen der Grundlagen des Lesens und Schreibens und regen die Kreativit{\"a}t an. Pappb{\"u}cher mit zus{\"a}tzlichen interaktiven Funktionen trainieren die Hand- und Augenkoordination und damit die motorischen F{\"a}higkeiten des Kindes. Ziel war es, ein Pappkinderbuch f{\"u}r junge Kinder zu gestalten, das Jung und Alt begeistert und Spaß bereitet.}, language = {de} } @masterthesis{Terry2024, type = {Bachelor Thesis}, author = {Terry, Aileen}, title = {Deutsche Parkinson Gesellschaft : Entwicklung eines neuen Erscheinungsbildes f{\"u}r die Deutsche Parkinson Gesellschaft zur F{\"o}rderung des Bewusstseins f{\"u}r die Krankheit}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {174 Seiten}, year = {2024}, abstract = {Mehr als 400.000 Menschen in Deutschland sind von Parkinson betroffen, dennoch bleibt diese neurodegenerative Krankheit oft im Schatten anderer Erkrankungen. Diese Bachelorarbeit beleuchtet die Unsichtbarkeit von Parkinson im {\"o}ffentlichen Raum und setzt sich f{\"u}r eine breitere Aufkl{\"a}rung ein. Durch ein neues Corporate Design der Deutschen Parkinson Gesellschaft sowie begleitende Maßnahmen wird angestrebt, Informationen {\"u}ber die Krankheit zu verbreiten und Einblicke in die Lebensumst{\"a}nde der Betroffenen zu gew{\"a}hren. Dies tr{\"a}gt nicht nur zu einer fr{\"u}hzeitigen Diagnosestellung bei, sondern erm{\"o}glicht auch eine verbesserte Unterst{\"u}tzung f{\"u}r Patient:innen und ihre Angeh{\"o}rigen. Ein Aufruf, gemeinsam mit den Betroffenen Vorurteile zu {\"u}berwinden und Parkinson sichtbar zu machen. Mit dem Ziel Parkinson irgendwann heilem zu k{\"o}nnen.}, language = {de} } @masterthesis{Tiller2024, type = {Bachelor Thesis}, author = {Tiller, Alicia}, title = {Die G{\"o}ttin in dir : Arbeitsbuch zu den weiblichen Rhythmen}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {123 Seiten}, year = {2024}, abstract = {Was verbindet der Mond, die Jahreszeiten und das Weibliche dieser Erde? Das sich immerfort drehende Rad der Zyklen. In vergangenen Zeiten nutzten Frauen den Menstruationszyklus und die Weisheit der Natur als Quelle der Kraft - f{\"u}r kreative, emotionale, geistige und k{\"o}rperliche F{\"u}hrung durch das Leben. Dieses alte Wissen ist noch heute durch Geschichten und Mythen unserer Welt erfahrbar. Das Arbeitsbuch „Die G{\"o}ttin in dir" begleitet Leser:innen auf diesen Spuren durch die Welten der Zyklen und Rhythmen aus der Kulturhistorie, Biologie und dem indigenen Wissen. Die Ebene der Selbstreflexion in diesem Buch bietet dabei eine aktive Methode, die Nutzer:innen dazu bef{\"a}higt, in die Umsetzung zu gehen und den Prozess der zyklischen Reise der Natur zu begleiten. Das Konzept des Buches zielt darauf ab, eine Verbindung zwischen der Selbsterfahrung im Kontext weiblicher Archetypen, dem Menstruationszyklus, nat{\"u}rlichen Rhythmen und ethnologischen Techniken herzustellen. Die Absicht ist es, die individuelle Erfahrung jeder Frau zu st{\"a}rken, das Selbstvertrauen zu f{\"o}rdern und den Mut zur Vielfalt zu aktivieren. Es geht darum, unsere angeborene, instinktive Natur in uns wieder zu erwecken. Die Stimme der G{\"o}ttin fl{\"u}stert uns zu und ruft ihre T{\"o}chter. Denn die Melodie, die in dir erklingt, m{\"o}chte geh{\"o}rt werden.}, language = {de} } @article{AkimbekovDigelTastambeketal.2024, author = {Akimbekov, Nuraly S. and Digel, Ilya and Tastambek, Kuanysh T. and Kozhahmetova, Marzhan and Sherelkhan, Dinara K. and Tauanov, Zhandos}, title = {Hydrogenotrophic methanogenesis in coal-bearing environments: Methane production, carbon sequestration, and hydrogen availability}, series = {International Journal of Hydrogen Energy}, volume = {52}, journal = {International Journal of Hydrogen Energy}, number = {Part D}, publisher = {Elsevier}, address = {New York}, issn = {1879-3487 (online)}, doi = {10.1016/j.ijhydene.2023.09.223}, pages = {1264 -- 1277}, year = {2024}, abstract = {Methane is a valuable energy source helping to mitigate the growing energy demand worldwide. However, as a potent greenhouse gas, it has also gained additional attention due to its environmental impacts. The biological production of methane is performed primarily hydrogenotrophically from H2 and CO2 by methanogenic archaea. Hydrogenotrophic methanogenesis also represents a great interest with respect to carbon re-cycling and H2 storage. The most significant carbon source, extremely rich in complex organic matter for microbial degradation and biogenic methane production, is coal. Although interest in enhanced microbial coalbed methane production is continuously increasing globally, limited knowledge exists regarding the exact origins of the coalbed methane and the associated microbial communities, including hydrogenotrophic methanogens. Here, we give an overview of hydrogenotrophic methanogens in coal beds and related environments in terms of their energy production mechanisms, unique metabolic pathways, and associated ecological functions.}, language = {en} } @article{WindmuellerSchapsZantisetal.2024, author = {Windm{\"u}ller, Anna and Schaps, Kristian and Zantis, Frederik and Domgans, Anna and Taklu, Bereket Woldegbreal and Yang, Tingting and Tsai, Chih-Long and Schierholz, Roland and Yu, Shicheng and Kungl, Hans and Tempel, Hermann and Dunin-Borkowski, Rafal E. and H{\"u}ning, Felix and Hwang, Bing Joe and Eichel, R{\"u}diger-A.}, title = {Electrochemical activation of LiGaO2: implications for ga-doped garnet solid electrolytes in li-metal batteries}, series = {ACS Applied Materials \& Interfaces}, volume = {16}, journal = {ACS Applied Materials \& Interfaces}, number = {30}, publisher = {ACS Publications}, address = {Washington, DC}, issn = {39181-3919}, doi = {10.1021/acsami.4c03729}, pages = {14 Seiten}, year = {2024}, abstract = {Ga-doped Li7La3Zr2O12 garnet solid electrolytes exhibit the highest Li-ion conductivities among the oxide-type garnet-structured solid electrolytes, but instabilities toward Li metal hamper their practical application. The instabilities have been assigned to direct chemical reactions between LiGaO2 coexisting phases and Li metal by several groups previously. Yet, the understanding of the role of LiGaO2 in the electrochemical cell and its electrochemical properties is still lacking. Here, we are investigating the electrochemical properties of LiGaO2 through electrochemical tests in galvanostatic cells versus Li metal and complementary ex situ studies via confocal Raman microscopy, quantitative phase analysis based on powder X-ray diffraction, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and electron energy loss spectroscopy. The results demonstrate considerable and surprising electrochemical activity, with high reversibility. A three-stage reaction mechanism is derived, including reversible electrochemical reactions that lead to the formation of highly electronically conducting products. The results have considerable implications for the use of Ga-doped Li7La3Zr2O12 electrolytes in all-solid-state Li-metal battery applications and raise the need for advanced materials engineering to realize Ga-doped Li7La3Zr2O12for practical use.}, language = {en} } @article{EichlerBalcBremenetal.2024, author = {Eichler, Fabian and Balc, Nicolae and Bremen, Sebastian and Nink, Philipp}, title = {Investigation of laser powder bed fusion parameters with respect to their influence on the thermal conductivity of 316L samples}, series = {Journal of Manufacturing and Materials Processing}, volume = {8}, journal = {Journal of Manufacturing and Materials Processing}, number = {4}, publisher = {MDPI}, address = {Basel}, issn = {2504-4494}, doi = {10.3390/jmmp8040166}, pages = {12 Seiten}, year = {2024}, abstract = {The thermal conductivity of components manufactured using Laser Powder Bed Fusion (LPBF), also called Selective Laser Melting (SLM), plays an important role in their processing. Not only does a reduced thermal conductivity cause residual stresses during the process, but it also makes subsequent processes such as the welding of LPBF components more difficult. This article uses 316L stainless steel samples to investigate whether and to what extent the thermal conductivity of specimens can be influenced by different LPBF parameters. To this end, samples are set up using different parameters, orientations, and powder conditions and measured by a heat flow meter using stationary analysis. The heat flow meter set-up used in this study achieves good reproducibility and high measurement accuracy, so that comparative measurements between the various LPBF influencing factors to be tested are possible. In summary, the series of measurements show that the residual porosity of the components has the greatest influence on conductivity. The degradation of the powder due to increased recycling also appears to be detectable. The build-up direction shows no detectable effect in the measurement series.}, language = {en} } @article{ZhantlessovaSavitskayaKistaubayevaetal.2024, author = {Zhantlessova, Sirina and Savitskaya, Irina and Kistaubayeva, Aida and Ignatova, Ludmila and Talipova, Aizhan and Pogrebnjak, Alexander and Digel, Ilya}, title = {Correction: Zhantlessova et al. advanced "Green" prebiotic composite of bacterial cellulose/pullulan based on synthetic biology-powered microbial coculture strategy. Polymers 2022, 14, 3224}, series = {Polymers}, volume = {16}, journal = {Polymers}, number = {13}, publisher = {MDPI}, address = {Basel}, issn = {2073-4360}, doi = {10.3390/polym16131802}, pages = {2 Seiten}, year = {2024}, language = {en} } @inproceedings{DachwaldOhndorfSpurmannetal.2009, author = {Dachwald, Bernd and Ohndorf, Andreas and Spurmann, J. and Loeb, H. W. and Schartner, Karl-Heinz and Seboldt, Wolfgang}, title = {Mission design for a SEP mission to saturn}, series = {60th International Astronautical Congress 2009 (IAC 2009)}, booktitle = {60th International Astronautical Congress 2009 (IAC 2009)}, publisher = {Curran Associates, Inc.}, address = {Red Hook, NY}, isbn = {978-1-61567-908-9}, pages = {11 Seiten}, year = {2009}, abstract = {Within ESA's Cosmic Vision 2015-2025 plan, a mission to explore the Saturnian System, with special emphasis on its two moons Titan and Enceladus, was selected for study, termed TANDEM (Titan and Enceladus Mission). In this paper, we describe an optimized mission design for a TANDEM-derived solar electric propulsion (SEP) mission. We have chosen the SEP mission scenario for the interplanetary transfer of the TANDEM spacecraft because all feasible gravity assist sequences for a chemical transfer between 2015 and 2025 result in long flight times of about nine years. Our SEP system is based on the German RIT ion engine. For our optimized mission design, we have extensively explored the SEP parameter space (specific impulse, thrust level, power level) and have calculated an optimal interplanetary trajectory for each setting. In contrast to the original TANDEM mission concept, which intends to use two launch vehicles and an all-chemical transfer, our SEP mission design requires only a single Ariane 5 ECA launch for the same payload mass. Without gravity assist, it yields a faster and more flexible transfer with a fight time of less than seven years, and an increased payload ratio. Our mission design proves thereby the capability of SEP even for missions into the outer solar system.}, language = {en} } @incollection{AtmaneHirechKassmietal.2020, author = {Atmane, Ilias and Hirech, Kamal and Kassmi, K. and Mahdi, Zahra and Alexopoulos, Spiros and Schwarzer, Klemens and Chayeb, H. and Bachiri, Najib}, title = {Design and realization of a pilot solar desalination plant in Douar El Hamri in the province of Berkane (Morocco)}, series = {Sustainable entrepreneurship, renewable energy-based projects, and digitalization}, booktitle = {Sustainable entrepreneurship, renewable energy-based projects, and digitalization}, editor = {Omrane, Amina and Kassmi, Khalil and Akram, Muhammad Wasim and Khanna, Ashish and Mostafiz, Imtiaz}, publisher = {CRC Press}, address = {Boca Raton, Fa.}, isbn = {9781000292541 (E-Book)}, pages = {18 Seiten}, year = {2020}, abstract = {Producing fresh water from saline water has become one of the most difficult challenges to overcome especially with the high demand and shortage of fresh water. In this context, as part of a collaboration with Germany, the authors propose a design and implementation of a pilot multi-stage solar desalination system (MSD), remotely controlled, at Douar Al Hamri in the rural town of Boughriba in the province of Berkane, Morocco. More specifically, they present their contribution on the remote control and supervision system, which makes the functioning of the MSD system reliable and guarantees the production of drinking water for the population of Douar. The results obtained show that the electronic cards and computer communication software implemented allow the acquisition of all electrical (currents, voltages, powers, yields), thermal (temperatures of each stage), and meteorological (irradiance and ambient temperature), remote control and maintenance (switching on, off, data transfer). By comparing with the literature carried out in the field of solar energy, the authors conclude that the MSD and electronic desalination systems realized during this work represent a contribution in terms of the reliability and durability of providing drinking water in rural and urban areas.}, language = {en} } @masterthesis{Naujoks2024, type = {Bachelor Thesis}, author = {Naujoks, Christian}, title = {Tracking healthy habits : Digitale Anwendung zur F{\"o}rderung von gesunder Ern{\"a}hrung und Verhalten}, publisher = {FH Aachen}, address = {Aachen}, pages = {293 Seiten}, year = {2024}, abstract = {"Tracking healthy habits" ist eine App, die darauf abzielt, ges{\"u}ndere Essgewohnheiten und mehr Bewegung zu f{\"o}rdern, indem sie verschiedene messbare Metriken erfasst. Die Anwendung legt einen besonderen Schwerpunkt auf das Verfolgen von Kalorien, um Nutzer:innen dabei zu helfen, ihre t{\"a}gliche Kalorienaufnahme zu kontrollieren und ein besseres Verst{\"a}ndnis f{\"u}r Lebensmittel zu entwickeln. Ein {\"u}berm{\"a}ßiger Konsum ungesunder Lebensmittel und Bewegungsmangel k{\"o}nnen sich negativ auf den geistigen und k{\"o}rperlichen Zustand auswirken. Daher unterst{\"u}tzt diese App Nutzer:innen dabei, ges{\"u}ndere Gewohnheiten zu entwickeln und Disziplin zu f{\"o}rdern. Die Hauptziele von "Tracking Healthy Habits" sind die F{\"o}rderung ges{\"u}nderer Essgewohnheiten, die Unterst{\"u}tzung langfristiger Verhaltens{\"a}nderungen durch kontinuierliches Monitoring und die Verbesserung der k{\"o}rperlichen sowie geistigen Gesundheit.}, language = {de} } @masterthesis{Plevako2024, type = {Bachelor Thesis}, author = {Plevako, Ludmilla}, title = {Ekatharina : Leben in der Trudarmee}, publisher = {FH Aachen}, address = {Aachen}, pages = {59 Seiten}, year = {2024}, abstract = {Harte Arbeit, Hunger, Unterk{\"u}hlung und Ungewissheit - dies war der normale Alltag der Trudarmee im 2. Weltkrieg. Ekatharina, eine deutsche Sowjetb{\"u}rgerin, wurde wie viele andere gegen ihren Willen in diese Armee eingezogen. Die Bachelorarbeit „Ekatharina - Leben in der Trudarmee" behandelt den Lebensabschnitt einer {\"U}berlebenden, der Urgroßmutter der Autorin, in Form eines Graphic Novels. In der Trudarmee, auch Arbeitsarmee genannt, musste sie unter schweren Bedingungen Zwangsarbeit verrichten, wie arbeiten in der Schmiede, B{\"a}ume f{\"a}llen oder St{\"a}mme schleppen. Das Projekt soll nicht nur die Erinnerungen und das kulturelle Gut bewahren, es soll auch die Familiengeschichte erforschen, die Vergangenheit verst{\"a}ndlich gestalten und die beteiligten Personen in Ehren halten.}, language = {de} } @masterthesis{Wiese2024, type = {Bachelor Thesis}, author = {Wiese, Katharina}, title = {Drink me}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {39 Seiten}, year = {2024}, abstract = {„Drink me" ist ein Kurzfilm {\"u}ber drei Freunde auf einer Party, auf der ein mysteri{\"o}ses Getr{\"a}nk verteilt wird, das die Partyg{\"a}ste in einen besonderen Rausch versetzt. Die Farben fangen an zu leuchten, die Musik wird klarer, alles f{\"u}hlt sich intensiver an. Bis sich die Wahrnehmung der Protagonistin Ally pl{\"o}tzlich ver{\"a}ndert: Vom bunt leuchtenden Rauschzustand zur scheinbaren Realit{\"a}t: Einem grauen, kalten Bunker voller abgewrackter Gestalten. Ally versucht die Party zu verlassen, doch w{\"a}hrend ihre Wahrnehmungen immer weiter verschwimmen, verliert sie gleichzeitig allm{\"a}hlich ihr Bewusstsein. Der Film bietet durch die Darstellung der verschiedenen Wahrnehmungszust{\"a}nde und das Verschwimmen derer ein visuell besonders spannendes Erlebnis.}, language = {de} } @masterthesis{Zeyen2024, type = {Bachelor Thesis}, author = {Zeyen, Kim}, title = {Seeds : Konzeption und Gestaltung eines Toolkits f{\"u}r die Entwicklung nachhaltiger Webdesigns}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {197 Seiten}, year = {2024}, abstract = {Die Menschheit lebt {\"u}ber ihre Verhältnisse: Permanent {\"u}bersteigt unser Verbrauch die uns j{\"a}hrlich zur Verf{\"u}gung stehenden Ressourcen. Der Energiebedarf digitaler Anwendungen wird dabei meist unterschätzt. Wie Interaction-Designer:innen einen Beitrag zur Entwicklung nachhaltiger Websites leisten können, ist aktuell nur durch aufwendige Recherche zu beantworten. Die Bachelorarbeit »Seeds« stellt einen Schritt im Prozess zu mehr Nachhaltigkeit dar. Sie umfasst ein Toolkit, bestehend aus einer Website und einem Plugin f{\"u}r g{\"a}ngige Designtools. Dieses b{\"u}ndelt alle Informationen, um das Internet barriereärmer, sozialer, ethischer und eben auch ökologisch verträglicher zu gestalten. W{\"a}hrend die Website eine Anlaufstelle f{\"u}r den Wissensaufbau darstellt, unterst{\"u}tzt das Plugin bei der Entwicklung eigener Designs, ohne dass Gestalter:innen den Designprozess verlassen m{\"u}ssen.}, language = {de} } @masterthesis{Bonsu2024, type = {Bachelor Thesis}, author = {Bonsu, Joel}, title = {HypnoStress : Implementierung eines Stressmanagement-Controllers f{\"u}r den schulischen Alltag in der Grundschule.}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {145 Seiten}, year = {2024}, abstract = {In der heutigen Welt sind Kinder in zunehmendem Maße Stress aus verschiedenen Quellen wie schulischen Anforderungen, famili{\"a}rem Druck und ungewohnten Situationen ausgesetzt. Dieser Aspekt wird von vielen Erwachsenen oft vernachl{\"a}ssigt. Das kann dazu f{\"u}hren, dass sich bei Kindern Frustration und {\"A}rger aufstauen. Insbesondere das schulische Umfeld stellt ein erhebliches Stresspotenzial dar, da von den Kindern hohe Leistungen erwartet werden. Leistungsdruck, soziale Erwartungen und Frustration tragen zu diesem Eindruck bei. Auch der Unterricht bildet da keine Ausnahme und ist aufgrund seiner zentralen Bedeutung eine potenzielle Stressquelle. Als spezialisierter Begleiter bietet HypnoStress den Kindern die M{\"o}glichkeit, mit hypnosebasierten Techniken die Stressoren des Alltags zu bew{\"a}ltigen und sich auf neue Herausforderungen vorzubereiten.}, language = {de} } @masterthesis{Esser2024, type = {Bachelor Thesis}, author = {Esser, Julius}, title = {Ecosystems : Neuinterpretation von Elementen der Savanne zu Objekten zwischen Kunst und Design.}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {390 Seiten}, year = {2024}, abstract = {Das Projekt „Ecosystems" (deutsch {\"O}kosysteme) beschreibt die zusammenh{\"a}ngende Entwicklung eines Produktsystems, inspiriert von einzelnen Elementen der afrikanischen Savanne. Das {\"O}kosystem und alle damit verbundenen Strukturen werden als Grundlage f{\"u}r die Konzeption der Objekte genutzt und fortlaufend weitgehend abstrahiert. Die Produktkollektion, bestehend aus sechs verschiedenen M{\"o}beln und Objekten, stellt zusammen das {\"O}kosystem der afrikanischen Savanne dar. Elemente der Savanne k{\"o}nnen ganz unterschiedlicher Natur sein. Sowohl die bekannten Tiere, wie die sogenannten Big Five, kleine Savannenbewohner:innen oder unterschiedliche Pflanzen bilden zusammen die Grundlage f{\"u}r das {\"O}kosystem. Jedes Objekt bezieht die Inspiration dabei aus einem anderen Element der Savanne. Die Grundlage der Objekte bildet dabei nicht allein das optische Erscheinungsbild der Tiere und Pflanzen, sondern vielmehr die damit verbundenen Emotionen und Reaktionen.}, language = {de} } @misc{BiewendtBlaschkeBoehnert2019, author = {Biewendt, Marcel and Blaschke, Florian and B{\"o}hnert, Arno}, title = {The rebound effect: a critical and systematic review on the current state of affairs}, series = {Abstracts of the International Conference on Sustainable Economy and Agriculture}, journal = {Abstracts of the International Conference on Sustainable Economy and Agriculture}, editor = {Koponicsne Gy{\"o}rke, Diana}, publisher = {Universit{\"a}t Kaposv{\´a}r}, address = {Kaposv{\´a}r}, isbn = {978-615-5599-72-9}, pages = {101 -- 101}, year = {2019}, language = {en} } @phdthesis{Biewendt2022, author = {Biewendt, Marcel}, title = {Socio-Economic challenges in sustainability and resource management}, publisher = {Hungarian University of Agriculture and Life Sciences}, pages = {160 Seiten}, year = {2022}, abstract = {This dissertation uses in first stage a macroeconomic investigation to examine the dependence, influence and corruption of socio-economic development through effects of sustainability and resource management. The conducted research found that the state's dependence on its citizens decreases when the state's sources of revenue are largely detached and independent of the citizens' financial resources. In this case, financial resources are taxes and duties provided by the citizens. One possible consequence is the restriction of state investment in its citizens. Both the qualitative literature review and the quantitative data analysis revealed a negative correlation between socio-economic development and the resource economy's share of GDP for the period under study. The microeconomic investigation was primarily conducted through an intensive literature review. It was shown that the rebound effect as such is already very well researched. However, it also became clear that avoidance strategies for the rebound effect and links to sustainability initiatives are scarce or non-existent. The need for a redesign of the impact analysis with regard to technological innovations and their influence on resource consumption and resource management has become clear on the basis of the present study. Further, emerging and developing countries in particular, which will be confronted in the foreseeable future not only with the fundamental problems of resource abundance in the overall economic context, but also with the issues of their sustainable use, should be confronted with these problems as early as possible in order to find solutions in a timely manner.}, language = {de} } @misc{LippoldtRingbeckHuening2023, author = {Lippoldt, Mario and Ringbeck, Thorsten and H{\"u}ning, Felix}, title = {Verfahren und System zur Erkennung von unerlaubten Fahrzeug-{\"U}berholvorg{\"a}ngen in einer {\"U}berholverbotszone eines Fahrwegs}, year = {2023}, language = {de} } @inproceedings{StarkBartelDitscheetal.2023, author = {Stark, Ralf and Bartel, Sebastian and Ditsche, Florian and Esch, Thomas}, title = {Design study of a 30kN LOX/LCH4 aerospike rocket engine for lunar lander application}, series = {Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS}, booktitle = {Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS}, pages = {9 Seiten}, year = {2023}, abstract = {Based on lunar lander concept EL3, various LOX/CH4 aerospike engines were studied. A distinction was made between single and cluster configurations as well as ideal and non-ideal contour concepts. It could be shown that non-ideal aerospike engines promise a significant payload gain.}, language = {en} } @inproceedings{StarkRiepingEsch2023, author = {Stark, Ralf and Rieping, Carla and Esch, Thomas}, title = {The impact of guide tubes on flow separation in rocket nozzles}, series = {Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS}, booktitle = {Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS}, pages = {8 Seiten}, year = {2023}, abstract = {Rocket engine test facilities and launch pads are typically equipped with a guide tube. Its purpose is to ensure the controlled and safe routing of the hot exhaust gases. In addition, the guide tube induces a suction that effects the nozzle flow, namely the flow separation during transient start-up and shut-down of the engine. A cold flow subscale nozzle in combination with a set of guide tubes was studied experimentally to determine the main influencing parameters.}, language = {en} } @article{SchopenNarayanBeckmannetal.2024, author = {Schopen, Oliver and Narayan, Sriram and Beckmann, Marvin and Najmi, Aezid-Ul-Hassan and Esch, Thomas and Shabani, Bahman}, title = {An EIS approach to quantify the effects of inlet air relative humidity on the performance of proton exchange membrane fuel cells: a pathway to developing a novel fault diagnostic method}, series = {International Journal of Hydrogen Energy}, volume = {58}, journal = {International Journal of Hydrogen Energy}, number = {8}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {0360-3199 (print)}, issn = {1879-3487 (online)}, doi = {10.1016/j.ijhydene.2024.01.218}, pages = {1302 -- 1315}, year = {2024}, abstract = {In this work, the effect of low air relative humidity on the operation of a polymer electrolyte membrane fuel cell is investigated. An innovative method through performing in situ electrochemical impedance spectroscopy is utilised to quantify the effect of inlet air relative humidity at the cathode side on internal ionic resistances and output voltage of the fuel cell. In addition, algorithms are developed to analyse the electrochemical characteristics of the fuel cell. For the specific fuel cell stack used in this study, the membrane resistance drops by over 39 \% and the cathode side charge transfer resistance decreases by 23 \% after increasing the humidity from 30 \% to 85 \%, while the results of static operation also show an increase of ∼2.2 \% in the voltage output after increasing the relative humidity from 30 \% to 85 \%. In dynamic operation, visible drying effects occur at < 50 \% relative humidity, whereby the increase of the air side stoichiometry increases the drying effects. Furthermore, other parameters, such as hydrogen humidification, internal stack structure, and operating parameters like stoichiometry, pressure, and temperature affect the overall water balance. Therefore, the optimal humidification range must be determined by considering all these parameters to maximise the fuel cell performance and durability. The results of this study are used to develop a health management system to ensure sufficient humidification by continuously monitoring the fuel cell polarisation data and electrochemical impedance spectroscopy indicators.}, language = {en} } @misc{MachadoDahmannKeimeretal.2020, author = {Machado, Patricia Almeida and Dahmann, Peter and Keimer, Jona and Saretzki, Charlotte and St{\"u}bing, Felix and K{\"u}pper, Thomas}, title = {Stress profile and individual workload monitoring in general aviation pilots - an experiment's setting}, series = {23. Annual Meeting of the German Society of Travel Medicine, Coburg, 18.-19.9.2020}, journal = {23. Annual Meeting of the German Society of Travel Medicine, Coburg, 18.-19.9.2020}, doi = {10.55225/hppa.156}, year = {2020}, language = {en} } @inproceedings{LangohrBungCrookston2022, author = {Langohr, Philipp and Bung, Daniel Bernhard and Crookston, Brian M.}, title = {Hybrid investigation of labyrinth weirs: Discharge capacity and energy dissipation}, series = {Proceedings of the 39th IAHR World Congress}, booktitle = {Proceedings of the 39th IAHR World Congress}, editor = {Ortega-S{\´a}nchez, Miguel}, publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)}, address = {Madrid}, isbn = {978-90-832612-1-8}, issn = {2521-7119 (print)}, doi = {10.3850/IAHR-39WC252171192022738}, pages = {2313 -- 2318}, year = {2022}, abstract = {The replacement of existing spillway crests or gates with labyrinth weirs is a proven techno-economical means to increase the discharge capacity when rehabilitating existing structures. However, additional information is needed regarding energy dissipation of such weirs, since due to the folded weir crest, a three-dimensional flow field is generated, yielding more complex overflow and energy dissipation processes. In this study, CFD simulations of labyrinth weirs were conducted 1) to analyze the discharge coefficients for different discharges to compare the Cd values to literature data and 2) to analyze and improve energy dissipation downstream of the structure. All tests were performed for a structure at laboratory scale with a height of approx. P = 30.5 cm, a ratio of the total crest length to the total width of 4.7, a sidewall angle of 10° and a quarter-round weir crest shape. Tested headwater ratios were 0.089 ≤ HT/P ≤ 0.817. For numerical simulations, FLOW-3D Hydro was employed, solving the RANS equations with use of finite-volume method and RNG k-ε turbulence closure. In terms of discharge capacity, results were compared to data from physical model tests performed at the Utah Water Research Laboratory (Utah State University), emphasizing higher discharge coefficients from CFD than from the physical model. For upstream heads, some discrepancy in the range of ± 1 cm between literature, CFD and physical model tests was identified with a discussion regarding differences included in the manuscript. For downstream energy dissipation, variable tailwater depths were considered to analyze the formation and sweep-out of a hydraulic jump. It was found that even for high discharges, relatively low downstream Froude numbers were obtained due to high energy dissipation involved by the three-dimensional flow between the sidewalls. The effects of some additional energy dissipation devices, e.g. baffle blocks or end sills, were also analyzed. End sills were found to be non-effective. However, baffle blocks with different locations may improve energy dissipation downstream of labyrinth weirs.}, language = {en} } @inproceedings{CrookstonBung2022, author = {Crookston, Brian M. and Bung, Daniel Bernhard}, title = {Application of RGB-D cameras in hydraulic laboratory studies}, series = {Proceedings of the 39th IAHR World Congress}, booktitle = {Proceedings of the 39th IAHR World Congress}, editor = {Ortega-S{\´a}nchez, Miguel}, publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)}, address = {Madrid}, isbn = {978-90-832612-1-8}, issn = {2521-7119 (print)}, doi = {10.3850/IAHR-39WC252171192022964}, pages = {5127 -- 5133}, year = {2022}, abstract = {Non-intrusive measuring techniques have attained a lot of interest in relation to both hydraulic modeling and prototype applications. Complimenting acoustic techniques, significant progress has been made for the development of new optical methods. Computer vision techniques can help to extract new information, e. g. high-resolution velocity and depth data, from videos captured with relatively inexpensive, consumer-grade cameras. Depth cameras are sensors providing information on the distance between the camera and observed features. Currently, sensors with different working principles are available. Stereoscopic systems reference physical image features (passive system) from two perspectives; in order to enhance the number of features and improve the results, a sensor may also estimate the disparity from a detected light to its original projection (active stereo system). In the current study, the RGB-D camera Intel RealSense D435, working on such stereo vision principle, is used in different, typical hydraulic modeling applications. All tests have been conducted at the Utah Water Research Laboratory. This paper will demonstrate the performance and limitations of the RGB-D sensor, installed as a single camera and as camera arrays, applied to 1) detect the free surface for highly turbulent, aerated hydraulic jumps, for free-falling jets and for an energy dissipation basin downstream of a labyrinth weir and 2) to monitor local scours upstream and downstream of a Piano Key Weir. It is intended to share the authors' experiences with respect to camera settings, calibration, lightning conditions and other requirements in order to promote this useful, easily accessible device. Results will be compared to data from classical instrumentation and the literature. It will be shown that even in difficult application, e. g. the detection of a highly turbulent, fluctuating free-surface, the RGB-D sensor may yield similar accuracy as classical, intrusive probes.}, language = {en} }