@incollection{SchubaHoefken2024, author = {Schuba, Marko and H{\"o}fken, Hans-Wilhelm}, title = {Cybersicherheit in Produktion, Automotive und intelligenten Geb{\"a}uden}, series = {IT-Sicherheit: Technologien und Best Practices f{\"u}r die Umsetzung im Unternehmen}, booktitle = {IT-Sicherheit: Technologien und Best Practices f{\"u}r die Umsetzung im Unternehmen}, editor = {Lang, Michael and L{\"o}hr, Hans}, publisher = {Hanser}, address = {M{\"u}nchen}, isbn = {9783446480827 (Print)}, pages = {311 -- 338}, year = {2024}, language = {de} } @inproceedings{EvansChavezBermudezWollert2023, author = {Evans, Benjamin and Ch{\´a}vez Berm{\´u}dez, Victor Francisco and Wollert, J{\"o}rg F.}, title = {Automatic generation and orchestration of active asset administration shells with IO-Link}, series = {Kommunikation in der Automation : 14. Jahreskolloquium, 21./22.11.2023, Magdeburg}, booktitle = {Kommunikation in der Automation : 14. Jahreskolloquium, 21./22.11.2023, Magdeburg}, publisher = {Otto von Guericke University Library}, address = {Magdeburg}, doi = {10.25673/111743}, pages = {12 Seiten}, year = {2023}, abstract = {This paper presents a proof of concept for automatically generating and orchestrating active asset administration shells (AAS) with IO-Link. AAS are software-based representations of physical assets that enable interoperability and standardised communication across different industrial systems. IO-Link is a widely adopted communication protocol for sensors and actuators in industrial automation. Our method uses an approach to generate AASs based on the IO-Link device description files. The generated AASs can then be orchestrated to form a distributed system that provides dynamic information about the status and performance of the connected assets. We demonstrate the effectiveness of our method through a proof of concept that involves the automatic generation and orchestration of AASs for a fluid processing unit equipped with pressure and flow sensors and a pump. The results show that our approach reduces the time and effort required to create and maintain active AASs.}, language = {en} } @inproceedings{ChavezBermudezWollert2024, author = {Ch{\´a}vez Berm{\´u}dez, Victor Francisco and Wollert, J{\"o}rg F.}, title = {An industry 4.0 ontology-based architecture for interoperability at the field level}, series = {Automation, Robotics \& Communications for Industry 4.0/5.0}, booktitle = {Automation, Robotics \& Communications for Industry 4.0/5.0}, publisher = {IFSA}, address = {Barcelona}, isbn = {978-84-09-58219-8}, issn = {2938-4796}, doi = {10.13140/RG.2.2.20923.18722}, pages = {319 -- 321}, year = {2024}, abstract = {Industrial field devices exchange information through standardized communication interfaces and data models, encompassing process data, communication properties, and vendor details. Despite enhancing interoperability within a specific protocol, integrating these devices with diverse systems poses challenges due to data model fragmentation and custom interfaces. The absence of a universal semantic model for categorizing field device process data independently of standards necessitates engineers to repetitively devise custom exchange data models for different sensors and actuators, relying on standards like OPC-UA. In response, this work proposes an ontology-based architecture to tackle information data model fragmentation, aiming for seamless data interoperability across a universal interface. By focusing on two open-access field device standards, IO-Link and CANOpen, we compare their information data models, identify existing limitations, and put forth a semantic information model. The objective is to offer an interoperable interface for Industry 4.0 applications, showcasing the potential of an ontology-based approach in streamlining data exchange and reducing heterogeneity among field devices.}, language = {en} } @article{NehrBausCinaretal.2024, author = {Nehr, Sascha and Baus, Lukas and {\c{C}}inar, Hasan and Elsen, Ingo and Frauenrath, Tobias}, title = {Indoor environmental quality assessment in passively ventilated classrooms in Germany and estimation of ventilation energy losses}, series = {Journal of Building Engineering}, volume = {97}, journal = {Journal of Building Engineering}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2352-7102}, pages = {20 Seiten}, year = {2024}, abstract = {In this field study we present an approach for the comprehensive and room-specific assessment of parameters with the overall aim to realize energy-efficient provision of hygienically harmless and thermally comfortable indoor environmental quality in naturally ventilated non-residential buildings. The approach is based on (i) conformity assessment of room design parameters, (ii) empirical determination of theoretically expected occupant-specific supply air flow rates and corresponding air exchange rates, (iii) experimental determination of real occupant-specific supply air flow rates and corresponding air exchange rates, (iv) measurement of indoor environmental exposure conditions of T, RH, cCO2 , cPM2.5 and cTVOC, and (v) determination of real energy demands for the prevailing ventilation scheme. Underlying assessment criteria comprise the indoor environmental parameters of category II of EN 16798-1: Temperature T = 20 ◦C-24 ◦C, and relative humidity RH = 25 \%-60 \% as well as the guide values of the German Federal Environment Agency for cCO2 cPM2.5 and cTVOC of 1000 ppm, 15 μg m⁻³, and 1 mg m ⁻³, respectively. Investigation objects are six naturally ventilated classrooms of a German secondary school. Major factors influencing indoor environmental quality in these classrooms are the specific room volume per occupant and the window opening area. It is concluded that the rigorous implementation of ventilation recommendations laid down by the German Federal Environment Agency is ineffective with respect to anticipated indoor environmental parameters and inefficient with respect to ventilation energy losses on the order of about 10 kWh m⁻² a ⁻¹ to 30 kWh m⁻² a ⁻¹.}, language = {en} } @inproceedings{MichauxBrunnWillertetal.2024, author = {Michaux, Frank and Brunn, Andr{\´e} and Willert, Christian and Kallweit, Stephan}, title = {Automatic setup and calibration of a Robotic-PIV system using fiducial markers}, series = {21st International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics}, booktitle = {21st International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics}, doi = {10.55037/lxlaser.21st.163}, pages = {12 Seiten}, year = {2024}, abstract = {The use of industrial robots allows the precise manipulation of all components necessary for setting up a large-scale particle image velocimetry (PIV) system. The known internal calibration matrix of the cameras in combination with the actual pose of the industrial robots and the calculated transform from the fiducial markers to camera coordinates allow the precise positioning of the individual PIV components according to the measurement demands. In addition, the complete calibration procedure for generating the external camera matrix and the mapping functions for e.g. dewarping the stereo images can be automatically determined without further user interaction and thus the degree of automation can be extended to nearly 100\%. This increased degree of automation expands the applications range of PIV systems, in particular for measurement tasks with severe time constraints.}, language = {en} } @incollection{LuftLuft2021, author = {Luft, Angela and Luft, Nils}, title = {Leitfaden: Systematische Kompetenzentwicklung im Umfeld der Smart Factory}, series = {Handbuch digitale Kompetenzentwiclung}, booktitle = {Handbuch digitale Kompetenzentwiclung}, editor = {Ramin, Philipp}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-3-446-46738-5}, doi = {10.3139/9783446469075.005}, pages = {89 -- 120}, year = {2021}, language = {de} } @inproceedings{LuftBesenfelder2014, author = {Luft, Nils and Besenfelder, Christoph}, title = {Flexibility based assessment of production system robustness}, series = {Procedia 2nd CIRP Robust Manufacturing Conference (RoMac 2014)}, volume = {19}, booktitle = {Procedia 2nd CIRP Robust Manufacturing Conference (RoMac 2014)}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {0.1016/j.procir.2014.06.141}, pages = {81 -- 86}, year = {2014}, abstract = {Manufacturing companies are forced to operate in an increasingly volatile and unpredictabl environment. The number of events that can have a potentially critical impact on a production system's economic performance have significantly increased. This forces companies to invest considerably more in flexible and robust production systems capable of withstanding a certain amount of change however unable to quantify the benefits in advance. The satisfactory quantification and assessment of these qualities - Flexibility and Robustness -has not been realized yet. This paper discusses commonality between Flexibility and Robustness and offers a new approach to connect changes in the environment with the elements of a production system and thus quantifying its flexibility and robustness.}, language = {en} } @inproceedings{BoehnischBraun2024, author = {B{\"o}hnisch, Nils and Braun, Carsten}, title = {The effect of aerodynamic interactions on aeroelastic stability in wing-propeller systems}, series = {IFASD2024 Proceedings}, booktitle = {IFASD2024 Proceedings}, year = {2024}, abstract = {This paper presents initial findings from aeroelastic studies conducted on a wing-propeller model, aimed at evaluating the impact of aerodynamic interactions on wing flutter mechanisms and overall aeroelastic performance. Utilizing a frequency domain method, the flutter onset within a specified flight speed range is assessed. Mid-fidelity tools with a time domain approach are then used to account for the complex aerodynamic interaction between the propeller and the wing. Specifically, open-source software DUST and MBDyn are leveraged for this purpose. This investigation covers both windmilling and thrusting conditions of the wing-propeller model. During the trim process, adjustments to the collective pitch of the blades are made to ensure consistency across operational points. Time histories are then analyzed to pinpoint flutter onset, and corresponding frequencies and damping ratios are meticulously identified. The results reveal a marginal destabilizing effect of aerodynamic interaction on flutter speed, approximately 5\%. Notably, the thrusting condition demonstrates a greater destabilizing influence compared to windmilling. These comprehensive findings enhance the understanding of the aerodynamic behavior of such systems and offer valuable insights for early design predictions and the development of streamlined models for future endeavors.}, language = {en} } @article{CheilytkoAlexopoulosPozhuyevetal.2024, author = {Cheilytko, Andrii and Alexopoulos, Spiros and Pozhuyev, Andriy and Kaufhold, Oliver}, title = {An analytical approach to power optimization of concentrating solar power plants with thermal storage}, series = {Solar}, volume = {4}, journal = {Solar}, number = {3}, publisher = {MDPI}, address = {Basel}, issn = {2673-9941}, doi = {10.3390/solar4030024}, pages = {509 -- 525}, year = {2024}, abstract = {This paper deals with the problem of determining the optimal capacity of concentrated solar power (CSP) plants, especially in the context of hybrid solar power plants. This work presents an innovative analytical approach to optimizing the capacity of concentrated solar plants. The proposed method is based on the use of additional non-dimensional parameters, in particular, the design factor and the solar multiple factor. This paper presents a mathematical optimization model that focuses on the capacity of concentrated solar power plants where thermal storage plays a key role in the energy source. The analytical approach provides a more complete understanding of the design process for hybrid power plants. In addition, the use of additional factors and the combination of the proposed method with existing numerical methods allows for more refined optimization, which allows for the more accurate selection of the capacity for specific geographical conditions. Importantly, the proposed method significantly increases the speed of computation compared to that of traditional numerical methods. Finally, the authors present the results of the analysis of the proposed system of equations for calculating the levelized cost of electricity (LCOE) for hybrid solar power plants. The nonlinearity of the LCOE on the main calculation parameters is shown}, language = {en} } @article{BoehnischBraunMarzoccaetal.2024, author = {B{\"o}hnisch, Nils and Braun, Carsten and Marzocca, Pierre and Muscarello, Vincenzo}, title = {Impact of aerodynamic interactions on aeroelastic stability of wing-propeller systems}, series = {Applied Sciences}, volume = {14}, journal = {Applied Sciences}, number = {19}, publisher = {MDPI}, address = {Basel}, issn = {2076-3417}, doi = {10.3390/app14198709}, year = {2024}, abstract = {This paper presents initial findings from aeroelastic studies conducted on a wing-propeller model, aimed at evaluating the impact of aerodynamic interactions on wing flutter mechanisms and overall aeroelastic performance. The flutter onset is assessed using a frequency-domain method. Mid-fidelity tools based on the time-domain approach are then exploited to account for the complex aerodynamic interaction between the propeller and the wing. Specifically, the open-source software DUST and MBDyn are leveraged for this purpose. The investigation covers both windmilling and thrusting conditions. During the trim process, adjustments to the collective pitch of the blades are made to ensure consistency across operational points. Time histories are then analyzed to pinpoint flutter onset, and corresponding frequencies and damping ratios are identified. The results reveal a marginal destabilizing effect of aerodynamic interaction on flutter speed, approximately 5\%. Notably, the thrusting condition demonstrates a greater destabilizing influence compared to the windmilling case. These comprehensive findings enhance the understanding of the aerodynamic behavior of such systems and offer valuable insights for early design predictions and the development of streamlined models for future endeavors.}, language = {en} } @article{TixGotthardtBodeetal.2024, author = {Tix, Julian and Gotthardt, Leon and Bode, Joshua and Karabacak, Burak and Nordmann, Janne and Hengsbach, Jan-Niklas and Ulber, Roland and Tippk{\"o}tter, Nils}, title = {Enhancement of succinic acid production by Actinobacillus succinogenes in an electro-bioreactor}, series = {Fermentation}, volume = {10}, journal = {Fermentation}, number = {10}, publisher = {MDPI}, address = {Basel}, issn = {2311-5637}, doi = {10.3390/fermentation10100504}, year = {2024}, abstract = {This work examines the electrochemically enhanced production of succinic acid using the bacterium Actinobacillus succinogenes. The principal objective is to enhance the metabolic potential of glucose and CO2 utilization via the C4 pathway in order to synthesize succinic acid. We report on the development of an electro-bioreactor system to increase succinic acid production in a power-2-X approach. The use of activated carbon fibers as electrode surfaces and contact areas allows A. succinogenes to self-initiate biofilm formation. The integration of an electrical potential into the system shifts the redox balance from NAD+ to NADH, increasing the efficiency of metabolic processes. Mediators such as neutral red facilitate electron transfer within the system and optimize the redox reactions that are crucial for increased succinic acid production. Furthermore, the role of carbon nanotubes (CNTs) in electron transfer was investigated. The electro-bioreactor system developed here was operated in batch mode for 48 h and showed improvements in succinic acid yield and concentration. In particular, a run with 100 µM neutral red and a voltage of -600 mV achieved a yield of 0.7 gsuccinate·gglucose-1. In the absence of neutral red, a higher yield of 0.72 gsuccinate·gglucose-1 was achieved, which represents an increase of 14\% compared to the control. When a potential of -600 mV was used in conjunction with 500 µg∙L-1 CNTs, a 21\% increase in succinate concentration was observed after 48 h. An increase of 33\% was achieved in the same batch by increasing the stirring speed. These results underscore the potential of the electro-bioreactor system to markedly enhance succinic acid production.}, language = {en} } @article{GongRautPelzeretal.2024, author = {Gong, Jing and Raut, Amod and Pelzer, Marcel and H{\"u}ning, Felix}, title = {Marking-based perpendicular parking slot detection algorithm using LiDAR sensors}, series = {Vehicles}, volume = {6}, journal = {Vehicles}, number = {4}, publisher = {MDPI}, address = {Basel}, issn = {2624-8921}, doi = {10.3390/vehicles6040083}, pages = {1717 -- 1729}, year = {2024}, abstract = {The emergence of automotive-grade LiDARs has given rise to new potential methods to develop novel advanced driver assistance systems (ADAS). However, accurate and reliable parking slot detection (PSD) remains a challenge, especially in the low-light conditions typical of indoor car parks. Existing camera-based approaches struggle with these conditions and require sensor fusion to determine parking slot occupancy. This paper proposes a parking slot detection (PSD) algorithm which utilizes the intensity of a LiDAR point cloud to detect the markings of perpendicular parking slots. LiDAR-based approaches offer robustness in low-light environments and can directly determine occupancy status using 3D information. The proposed PSD algorithm first segments the ground plane from the LiDAR point cloud and detects the main axis along the driving direction using a random sample consensus algorithm (RANSAC). The remaining ground point cloud is filtered by a dynamic Otsu's threshold, and the markings of parking slots are detected in multiple windows along the driving direction separately. Hypotheses of parking slots are generated between the markings, which are cross-checked with a non-ground point cloud to determine the occupancy status. Test results showed that the proposed algorithm is robust in detecting perpendicular parking slots in well-marked car parks with high precision, low width error, and low variance. The proposed algorithm is designed in such a way that future adoption for parallel parking slots and combination with free-space-based detection approaches is possible. This solution addresses the limitations of camera-based systems and enhances PSD accuracy and reliability in challenging lighting conditions.}, language = {en} } @article{LuftBalcBremen2024, author = {Luft, Angela and Balc, Nicolae and Bremen, Sebastian}, title = {Experts' perspectives on the adoption of additive manufacturing in the industry and its interrelated implications in production structures}, series = {Acta Technica Napocensis}, volume = {67}, journal = {Acta Technica Napocensis}, number = {1s}, publisher = {Technical University of Cluj-Napoca}, address = {Cluj-Napoca}, issn = {1221-5872}, pages = {159 -- 168}, year = {2024}, abstract = {Additive Manufacturing (AM) is a topic that is becoming more relevant to many companies globally. With AM's progressive development and use for series production, integrating the technology into existing production structures is becoming an important criterion for businesses. This study qualitatively examines the actual state and different perspectives on the integration of AM in production structures. Seven semi-structured interviews were conducted and analyzed. The interview partners were high-level experts in Additive Manufacturing and production systems from industry and science. Four main themes were identified. Key findings are the far-reaching interrelationships and implications of AM within production structures. Specific AM-related aspects were identified. Those can be used to increase the knowledge and practical application of the technology in the industry and as a foundation for economic considerations.}, language = {en} } @article{LuftArntz2024, author = {Luft, Nils and Arntz, Kristian}, title = {The impact and challenges of Industry 4.0 on factory design, organization and management}, series = {Acta Technica Napocensis}, volume = {67}, journal = {Acta Technica Napocensis}, number = {1s}, publisher = {Technical University of Cluj-Napoca}, address = {Cluj-Napoca}, issn = {1221-5872}, pages = {151 -- 158}, year = {2024}, abstract = {The fourth industrial revolution is on its way to reshape manufacturing and value creation in a profound way. The underlying technologies like cyber-physical systems (CPS), big data, collaborative robotics, additive manufacturing or artificial intelligence offer huge potentials for the optimization and evolution of production systems. However, many manufacturing companies struggle to implement these technologies. This can only in part be attributed to the lack of skilled personal within these companies or a missing digitalization strategy. Rather, there is a fundamental incompatibility between the way current production systems and companies (Industry 3.0) are structured across multiple dimensions compared to what is necessary for industry 4.0. This is especially true in manufacturing systems and their transition towards flexible, decentralized and autonomous value creation networks. This paper shows across various dimensions these incompatibilities within manufacturing systems, explores their reasons and discusses a different approach to create a foundation for Industry 4.0 in manufacturing companies.}, language = {en} } @article{AbbasBalcBremenetal.2024, author = {Abbas, Karim and Balc, Nicolae and Bremen, Sebastian and Hedwig, Lukas}, title = {Polyetheretherketone (PEEK) in rapid tooling: advancements and applications for fused filament fabrication of rubber molds}, series = {Acta Technica Napocensis}, volume = {67}, journal = {Acta Technica Napocensis}, number = {1s}, publisher = {Technical University of Cluj-Napoca}, address = {Cluj-Napoca}, issn = {1221-5872}, pages = {13 -- 22}, year = {2024}, abstract = {Establishing high-performance polymers in additive manufacturing opens up new industrial applications. Polyetheretherketone (PEEK) was initially used in aerospace but is now widely applied in automotive, electronics, and medical industries. This study focuses on developing applications using PEEK and Fused Filament Fabrication for cost-efficient vulcanization injection mold production. A proof of concept confirms PEEK's suitability for AM mold making, withstanding vulcanization conditions. Printing PEEK above its glass transition temperature of 145 °C is preferable due to its narrow process window. A new process strategy at room temperature is discussed, with micrographs showing improved inter-layer bonding at 410°C nozzle temperature and 0.1 mm layer thickness. Minimizing the layer thickness from 0.15 mm to 0.1 mm improves tensile strength by 16\%.}, language = {en} } @article{EichlerBalcBremenetal.2024, author = {Eichler, Fabian and Balc, Nicolae and Bremen, Sebastian and Schleser, Markus and Schwarz, Alexander}, title = {Research on reducing residual stresses of SLM parts made for downstream welding process}, series = {Acta Technica Napocensis}, volume = {67}, journal = {Acta Technica Napocensis}, number = {1s}, publisher = {Technical University of Cluj-Napoca}, address = {Cluj-Napoca}, issn = {1221-5872}, pages = {69 -- 78}, year = {2024}, abstract = {In the face of the current trend towards larger and more complex production tasks in the SLM process and the current limitations in terms of maximum build space, the welding of SLM components to each other or to conventionally manufactured parts is becoming increasingly relevant. The fusion welding of SLM components made of 316L has so far been rarely investigated and if so, then for highly specialised laser welding processes. When welding with industrial gas welding processes such as MIG/MAG or TIG welding, distortions occur which are associated with the resulting residual stresses in the components. This paper investigates process-side influencing factors to avoid resulting residual stresses in SLM components made of 316L. The aim is to develop a strategy to build up SLM components as stress-free as possible in order to join them as profitably as possible with a downstream welding process. For this purpose, influencing parameters such as laser power, scan speed, but also scan vector length and different scan patterns are investigated with regard to their influence on residual stresses.}, language = {en} } @article{ValeroFelderKrameretal.2024, author = {Valero, Daniel and Felder, Stefan and Kramer, Matthias and Wang, Hang and Carrillo, Jos{\´e} M. and Pfister, Michael and Bung, Daniel Bernhard}, title = {Air-water flows}, series = {Journal of Hydraulic Research}, volume = {62}, journal = {Journal of Hydraulic Research}, number = {4}, publisher = {Taylor \& Francis}, issn = {0022-1686 (Print)}, doi = {10.1080/00221686.2024.2379482}, pages = {319 -- 339}, year = {2024}, abstract = {High Froude-number open-channel flows can entrain significant volumes of air, a phenomenon that occurs continuously in spillways, in free-falling jets and in hydraulic jumps, or as localized events, notably at the toe of hydraulic jumps or in plunging jets. Within these flows, turbulence generates millions of bubbles and droplets as well as highly distorted wavy air-water interfaces. This phenomenon is crucial from a design perspective, as it influences the behaviour of high-velocity flows, potentially impairing the safety of dam operations. This review examines recent scientific and engineering progress, highlighting foundational studies and emerging developments. Notable advances have been achieved in the past decades through improved sampling of flows and the development of physics-based models. Current challenges are also identified for instrumentation, numerical modelling and (up)scaling that hinder the formulation of fundamental theories, which are instrumental for improving predictive models, able to offer robust support for the design of large hydraulic structures at prototype scale.}, language = {en} } @article{MyburghJacobszBothaLeRouxKotliaretal.2024, author = {Myburgh-Jacobsz, Catharina Elizabeth and Botha-Le Roux, Shani and Kotliar, Konstantin and Wentzel, Annemarie and Jacobs, Adriaan and De Boever, Patrick and Goswami, Nandu and Strijdom, Hans and Smith, Wayne}, title = {Retinal vessel functional responses in South Africans living with and without HIV: the EndoAfrica-NWU study}, series = {Microcirculation}, journal = {Microcirculation}, number = {Early View}, publisher = {Wiley}, address = {Malden, MA}, issn = {1073-9688 (Print)}, doi = {10.1111/micc.12878}, pages = {11 Seiten}, year = {2024}, language = {en} } @article{FreyerKemptKloeser2024, author = {Freyer, Nils and Kempt, Hendrik and Kl{\"o}ser, Lars}, title = {Easy-read and large language models: on the ethical dimensions of LLM-based text simplification}, series = {Ethics and Information Technology}, volume = {26}, journal = {Ethics and Information Technology}, publisher = {Springer}, address = {Dortrecht}, issn = {1388-1957 (Print)}, doi = {10.1007/s10676-024-09792-4}, pages = {10 Seiten}, year = {2024}, abstract = {The production of easy-read and plain language is a challenging task, requiring well-educated experts to write context-dependent simplifications of texts. Therefore, the domain of easy-read and plain language is currently restricted to the bare minimum of necessary information. Thus, even though there is a tendency to broaden the domain of easy-read and plain language, the inaccessibility of a significant amount of textual information excludes the target audience from partaking or entertainment and restricts their ability to live life autonomously. Large language models can solve a vast variety of natural language tasks, including the simplification of standard language texts to easy-read or plain language. Moreover, with the rise of generative models like GPT, easy-read and plain language may be applicable to all kinds of natural language texts, making formerly inaccessible information accessible to marginalized groups like, a.o., non-native speakers, and people with mental disabilities. In this paper, we argue for the feasibility of text simplification and generation in that context, outline the ethical dimensions, and discuss the implications for researchers in the field of ethics and computer science.}, language = {en} } @article{AkimbekovDigelZhubanovaetal.2024, author = {Akimbekov, Nuraly and Digel, Ilya and Zhubanova, Azhar and Tastambek, Kuanysh T. and Tepecik, Atakan and Sherelkhan, Dinara}, title = {Biotechnological potentials of surfactants in coal utilization: a review}, series = {Environmental Science and Pollution Research}, volume = {31}, journal = {Environmental Science and Pollution Research}, publisher = {Springer}, address = {Berlin}, issn = {1614-7499}, doi = {10.1007/s11356-024-34892-5}, pages = {55099 -- 55118}, year = {2024}, abstract = {The quest for scientifically advanced and sustainable solutions is driven by growing environmental and economic issues associated with coal mining, processing, and utilization. Consequently, within the coal industry, there is a growing recognition of the potential of microbial applications in fostering innovative technologies. Microbial-based coal solubilization, coal beneficiation, and coal dust suppression are green alternatives to traditional thermochemical and leaching technologies and better meet the need for ecologically sound and economically viable choices. Surfactant-mediated approaches have emerged as powerful tools for modeling, simulation, and optimization of coal-microbial systems and continue to gain prominence in clean coal fuel production, particularly in microbiological co-processing, conversion, and beneficiation. Surfactants (surface-active agents) are amphiphilic compounds that can reduce surface tension and enhance the solubility of hydrophobic molecules. A wide range of surfactant properties can be achieved by either directly influencing microbial growth factors, stimulants, and substrates or indirectly serving as frothers, collectors, and modifiers in the processing and utilization of coal. This review highlights the significant biotechnological potential of surfactants by providing a thorough overview of their involvement in coal biodegradation, bioprocessing, and biobeneficiation, acknowledging their importance as crucial steps in coal consumption.}, language = {en} } @book{Heinrichs2024, author = {Heinrichs, Florian}, title = {Algorithmen, Zufall, Unsicherheit - und Pizza!}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-662-69171-7 (Print)}, doi = {10.1007/978-3-662-69172-4}, pages = {X, 191 Seiten}, year = {2024}, abstract = {Dieses Buch l{\"a}dt dazu ein, die Welt um uns herum aus einem neuen Blickwinkel zu betrachten und dabei die spannende Verbindung zwischen der Mathematik und unserem t{\"a}glichen Leben zu entdecken - denn um die Technologien und Entwicklungen unserer modernen Gesellschaft zu verstehen, ben{\"o}tigen wir ein intuitives Verst{\"a}ndnis grundlegender mathematischer Ideen. In diesem Buch geht es um diese Grundlagen, vor allem aber um ihre praktische Anwendung im Alltag: Gemeinsam begeben wir uns auf eine unterhaltsame Reise und entdecken dabei, wie Mathematik in vielf{\"a}ltiger Weise allgegenw{\"a}rtig ist. Anschauliche Beispiele zeigen, wie wir t{\"a}glich - oft unbewusst - mathematische Ideen nutzen und wie wir mit Hilfe von Mathematik bessere Entscheidungen treffen k{\"o}nnen. Nach einer Einf{\"u}hrung in Algorithmen und Optimierungsprobleme, geht es im weiteren Verlauf um die Modellierung von Zufall und Unsicherheiten. Zum Ende des Buchs werden die Themen zusammengef{\"u}hrt und Algorithmen f{\"u}r Anwendungen besprochen, bei denen der Zufall eine entscheidende Rolle spielt.}, language = {de} } @article{AdelsThoennessenMonakhova2024, author = {Adels, Klaudia and Th{\"o}nnessen, Vera and Monakhova, Yulia}, title = {Complementary instrumental techniques applied to pain relieving tablets in an undergraduate laboratory experiment}, series = {Journal of Chemical Education}, journal = {Journal of Chemical Education}, publisher = {ACS}, issn = {0021-9584 (Print)}, doi = {10.1021/acs.jchemed.4c00681}, pages = {11 Seiten}, year = {2024}, abstract = {Several unconnected laboratory experiments are usually offered for students in instrumental analysis lab. To give the students a more rational overview of the most common instrumental techniques, a new laboratory experiment was developed. Marketed pain relief drugs, familiar consumer products with one to three active components, namely, acetaminophen (paracetamol), acetylsalicylic acid (ASA), and caffeine, were selected. Common analytical methods were compared regarding the performance of qualitative and quantitative analysis of unknown tablets: UV-visible (UV-vis), infrared (IR), and nuclear magnetic resonance (NMR) spectroscopies, as well as high-performance liquid chromatography (HPLC). The students successfully uncovered the composition of formulations, which were divided into three difficulty categories. Students were shown that in addition to simple mixtures handled in theoretical classes, the composition of complex drug products can also be uncovered. By comparing the performance of different techniques, students deepen their understanding and compare the efficiency of analytical methods in the context of complex mixtures. The laboratory experiment can be adjusted for graduate level by including extra tasks such as method optimization, validation, and 2D spectroscopic techniques.}, language = {en} } @book{AlparAltBensbergetal.2023, author = {Alpar, Paul and Alt, Rainer and Bensberg, Frank and Czarnecki, Christian}, title = {Anwendungsorientierte Wirtschaftsinformatik : Strategische Planung, Entwicklung und Nutzung von Informationssystemen}, edition = {10. Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-40351-5}, doi = {10.1007/978-3-658-40352-2}, pages = {XVIII, 557 Seiten}, year = {2023}, abstract = {Ein Lehrbuch f{\"u}r die anwendungsorientierte Seite der Wirtschaftsinformatik. Dieses Lehrbuch der Wirtschaftsinformatik ist vor allem eines: anwendungsorientiert. Nutzen Sie die zahlreichen Fallbeispiele, um die Kerninhalte des Fachgebiets zu erlernen und einen Einblick in die umfassenden Einsatzm{\"o}glichkeiten der Informationstechnologien zu gewinnen, die in Zeiten der Digitalisierung f{\"u}r Wirtschaft und Gesellschaft unverzichtbar sind. Von den Grundbegriffen der Informations- und Kommunikationstechnologie bis zur strategischen Planung, Nutzung und Entwicklung von Informationssystemen - dieses Buch bietet Ihnen alle Werkzeuge zur Integration neuer Konzepte in bestehende Softwarearchitekturen.}, language = {de} } @masterthesis{Peters2024, type = {Bachelor Thesis}, author = {Peters, Carla}, title = {Display Neuke : Archivierte Perspektive}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {24 Seiten}, year = {2024}, abstract = {Die Website „Display Neuke" macht den bisher unver{\"o}ffentlichten Nachlass der Bildjournalistin Angela Neuke (1943-1997) aus der Sammlung des LVR-LandesMuseums Bonn digital und interaktiv zug{\"a}nglich. Das Projekt beleuchtet insbesondere Neukes Dokumentation der Frauenbewegung der 1970er Jahre in Westdeutschland und regt zur Reflexion {\"u}ber historische sowie aktuelle Frauenbilder an. Durch die bewusste Zusammenf{\"u}hrung und kontextuelle Einordnung des Materials wird sichtbar, wo, warum und unter welchen Umst{\"a}nden Fotostrecken und Magazinreportagen entstanden sind - das Archiv wird so als ein lebendiger Ort der Wissensvermittlung erfahrbar. Der Ansatz der programmierten und ver{\"o}ffentlichten Website erm{\"o}glicht es, Inhalte dynamisch anzupassen und zuk{\"u}nftig zu erweitern.}, language = {de} } @incollection{FerreinNikolovskiLimpertetal.2023, author = {Ferrein, Alexander and Nikolovski, Gjorgji and Limpert, Nicolas and Reke, Michael and Schiffer, Stefan and Scholl, Ingrid}, title = {Controlling a Fleet of Autonomous LHD Vehicles in Mining Operation}, series = {Multi-Robot Systems - New Advances}, booktitle = {Multi-Robot Systems - New Advances}, editor = {K{\"u}{\c{c}}{\"u}k, Serdar}, publisher = {Intech Open}, address = {London}, isbn = {978-1-83768-290-4}, doi = {10.5772/intechopen.113044}, pages = {21 Seiten}, year = {2023}, abstract = {In this chapter, we report on our activities to create and maintain a fleet of autonomous load haul dump (LHD) vehicles for mining operations. The ever increasing demand for sustainable solutions and economic pressure causes innovation in the mining industry just like in any other branch. In this chapter, we present our approach to create a fleet of autonomous special purpose vehicles and to control these vehicles in mining operations. After an initial exploration of the site we deploy the fleet. Every vehicle is running an instance of our ROS 2-based architecture. The fleet is then controlled with a dedicated planning module. We also use continuous environment monitoring to implement a life-long mapping approach. In our experiments, we show that a combination of synthetic, augmented and real training data improves our classifier based on the deep learning network Yolo v5 to detect our vehicles, persons and navigation beacons. The classifier was successfully installed on the NVidia AGX-Drive platform, so that the abovementioned objects can be recognised during the dumper drive. The 3D poses of the detected beacons are assigned to lanelets and transferred to an existing map.}, language = {de} } @misc{OPUS4-11152, title = {Ordnung zur Aufhebung der Pr{\"u}fungsordnung f{\"u}r die Bachelorstudieng{\"a}nge „Smart Building Engineering", „Smart Building Engineering mit Praxissemester" und „Smart Building Engineering mit Auslandssemester"}, organization = {FH Aachen}, pages = {4 Seiten}, year = {2024}, language = {de} } @masterthesis{Celenk2024, type = {Bachelor Thesis}, author = {Celenk, Mert Osman}, title = {Grafischer Aktivismus : Eine gestalterische Auseinandersetzung mit der Entwicklung einer visuellen Sprache f{\"u}r soziale Gerechtigkeit}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {386 Seiten}, year = {2024}, abstract = {Das Projekt "Grafischer Aktivismus" verortet sich im Schnittpunkt von Design und sozialem Engagement. Es ist eine gestalterische Auseinandersetzung, wie visuelle Kommunikation genutzt werden kann, um soziale Ungerechtigkeiten sichtbar zu machen und Bewusstsein zu schaffen. Durch die Entwicklung einer visuellen Sprache k{\"o}nnen Missst{\"a}nde thematisiert werden. Ziel ist es, durch gestalterische Mittel einen Dialog zu initiieren und die {\"o}ffentliche Wahrnehmung zu beeinflussen. Zu den Herangehensweisen geh{\"o}ren die Erstellung einer Schablone, die Entwicklung einer Schriftart und dessen Specimen. Diese Auseinandersetzung tr{\"a}gt dazu bei, gesellschaftliche Ver{\"a}nderungen anzustoßen und Gerechtigkeit zu f{\"o}rdern. Das Projekt bietet eine weitere Perspektive auf die Rolle von Grafikdesign im Aktivismus.}, language = {de} } @inproceedings{BremmBlaneckBornheimetal.2024, author = {Bremm, Florian and Blaneck, Patrick Gustav and Bornheim, Tobias and Grieger, Niklas and Bialonski, Stephan}, title = {Detecting Sexism in German Online Newspaper Comments with Open-Source Text Embeddings (Team GDA, GermEval2024 Shared Task 1: GerMS-Detect, Subtasks 1 and 2, Closed Track)}, series = {Proceedings of GermEval 2024 Task 1 GerMS-Detect Workshop on Sexism Detection in German Online News Fora (GerMS-Detect 2024)}, booktitle = {Proceedings of GermEval 2024 Task 1 GerMS-Detect Workshop on Sexism Detection in German Online News Fora (GerMS-Detect 2024)}, publisher = {ACL}, address = {Kerrville}, doi = {10.48550/arXiv.2403.08592}, pages = {33 -- 38}, year = {2024}, abstract = {Sexism in online media comments is a pervasive challenge that often manifests subtly, complicating moderation efforts as interpretations of what constitutes sexism can vary among individuals. We study monolingual and multilingual open-source text embeddings to reliably detect sexism and misogyny in Germanlanguage online comments from an Austrian newspaper. We observed classifiers trained on text embeddings to mimic closely the individual judgements of human annotators. Our method showed robust performance in the GermEval 2024 GerMS-Detect Subtask 1 challenge, achieving an average macro F1 score of 0.597 (4th place, as reported on Codabench). It also accurately predicted the distribution of human annotations in GerMS-Detect Subtask 2, with an average Jensen-Shannon distance of 0.301 (2nd place). The computational efficiency of our approach suggests potential for scalable applications across various languages and linguistic contexts.}, language = {en} } @masterthesis{CarrenoPintaudi2024, type = {Bachelor Thesis}, author = {Carreno Pintaudi, Delia}, title = {/SANO : Personal Well-Being - Eine mobile Anwendung zur Gesundheitsoptimierung und langfristigem Wohlbefinden}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {205 Seiten}, year = {2024}, abstract = {/SANO - eine App zur Gesundheitsoptimierung und langfristigem Wohlbefinden. In unserer schnelllebigen Welt f{\"u}hrt t{\"a}glicher Stress oft zur Vernachl{\"a}ssigung folgender Bereiche: Ern{\"a}hrung, Schlaf, Bewegung und Stress. Dieser Lebensstil f{\"o}rdert nicht {\"u}bertragbare Krankheiten wie Krebs, Herz-Kreislauf-Erkrankungen, Diabetes und chronische Atemwegserkrankungen, die weltweit viele Todesf{\"a}lle verursachen. Die Notwendigkeit umfassender L{\"o}sungen zur F{\"o}rderung gesunder Gewohnheiten wird immer dringlicher. /SANO unterst{\"u}tzt mit einem Werkzeug f{\"u}r Achtsamkeit und Gesundheit, das gesunde Gewohnheiten und Ziele definiert. Durch Tracking-M{\"o}glichkeiten, Routinen und To-Do-Listen werden sie individuell gef{\"o}rdert. Diese Arbeit stellt sich den Herausforderungen des aktuellen Krankheitszustandes unserer Gesellschaft und er{\"o}ffnet eine neue Perspektive im Well-Being und Gesundheitsbereich.}, language = {de} } @masterthesis{Russo2024, type = {Bachelor Thesis}, author = {Russo, Jessica Rose}, title = {Ein lebendiger Ort : Eindr{\"u}cke aus dem Gemeinschaftsgarten HirschGr{\"u}n}, publisher = {FH Aachen}, address = {Aachen}, pages = {95 Seiten}, year = {2024}, abstract = {Die interaktive Dokumentation erz{\"a}hlt die sinnliche Wirkung des Gemeinschaftsgartens HirschGr{\"u}n und teilt die Erfahrungen von vier G{\"a}rtner:innen in einer auditiven und visuellen Auseinandersetzung, innerhalb eines Open-World Ansatzes. Das Projekt stellt eine progressive Weise dar, sich mit journalistischen Inhalten zu besch{\"a}ftigen. Es schafft Perspektiven f{\"u}r die sozialen und sch{\"o}pferischen Potenziale eines Gemeinschaftsgartens. Interaktionen, visuelle und auditive Reize illustrieren die Atmosph{\"a}re. Gr{\"u}nfl{\"a}chen sind nicht nur klimarelevant, sondern schaffen f{\"u}r Stadtbewohner:innen vielf{\"a}ltige Wege, mit Leben in Kontakt zu treten. Besonders jene verbinden Gemeinschaft, Natur und Nachhaltigkeit. Die explorative Art technischer Informationsvermittlung und aktuelle Themen dieser Zeit werden auf einer Webseite vereint. Das Projekt zeigt eine Aussicht, multimedialen Journalismus zu gestalten.}, language = {de} } @incollection{HarlacherAltepostElsenetal.2024, author = {Harlacher, Markus and Altepost, Andrea and Elsen, Ingo and Ferrein, Alexander and Hansen-Ampah, Adjan and Merx, Wolfgang and Niehues, Sina and Schiffer, Stefan and Shahinfar, Fatemeh Nasim}, title = {Approach for the identification of requirements on the design of AI-supported work systems (in problem-based projects)}, series = {AI in Business and Economics}, booktitle = {AI in Business and Economics}, editor = {Lausberg, Isabel and Vogelsang, Michael}, publisher = {De Gruyter}, address = {Berlin}, isbn = {9783110790320}, doi = {10.1515/9783110790320}, pages = {87 -- 99}, year = {2024}, abstract = {To successfully develop and introduce concrete artificial intelligence (AI) solutions in operational practice, a comprehensive process model is being tested in the WIRKsam joint project. It is based on a methodical approach that integrates human, technical and organisational aspects and involves employees in the process. The chapter focuses on the procedure for identifying requirements for a work system that is implementing AI in problem-driven projects and for selecting appropriate AI methods. This means that the use case has already been narrowed down at the beginning of the project and must be completely defined in the following. Initially, the existing preliminary work is presented. Based on this, an overview of all procedural steps and methods is given. All methods are presented in detail and good practice approaches are shown. Finally, a reflection of the developed procedure based on the application in nine companies is given.}, language = {en} } @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} }