@article{KleefeldZimmermann2022, author = {Kleefeld, Andreas and Zimmermann, M.}, title = {Computing Elastic Interior Transmission Eigenvalues}, series = {Integral Methods in Science and Engineering}, journal = {Integral Methods in Science and Engineering}, editor = {Constanda, Christian and Bodmann, Bardo E.J. and Harris, Paul J.}, publisher = {Birkh{\"a}user}, address = {Cham}, isbn = {978-3-031-07171-3}, doi = {10.1007/978-3-031-07171-3_10}, pages = {139 -- 155}, year = {2022}, abstract = {An alternative method is presented to numerically compute interior elastic transmission eigenvalues for various domains in two dimensions. This is achieved by discretizing the resulting system of boundary integral equations in combination with a nonlinear eigenvalue solver. Numerical results are given to show that this new approach can provide better results than the finite element method when dealing with general domains.}, language = {en} } @article{PourshahidiAchtsnichtOffenhaeusseretal.2022, author = {Pourshahidi, Ali Mohammad and Achtsnicht, Stefan and Offenh{\"a}usser, Andreas and Krause, Hans-Joachim}, title = {Frequency Mixing Magnetic Detection Setup Employing Permanent Ring Magnets as a Static Offset Field Source}, series = {Sensors}, volume = {22}, journal = {Sensors}, number = {22}, editor = {Offenh{\"a}usser, Andreas}, publisher = {MDPI}, address = {Basel}, issn = {1424-8220}, doi = {10.3390/s22228776}, pages = {12 Seiten}, year = {2022}, abstract = {Frequency mixing magnetic detection (FMMD) has been explored for its applications in fields of magnetic biosensing, multiplex detection of magnetic nanoparticles (MNP) and the determination of core size distribution of MNP samples. Such applications rely on the application of a static offset magnetic field, which is generated traditionally with an electromagnet. Such a setup requires a current source, as well as passive or active cooling strategies, which directly sets a limitation based on the portability aspect that is desired for point of care (POC) monitoring applications. In this work, a measurement head is introduced that involves the utilization of two ring-shaped permanent magnets to generate a static offset magnetic field. A steel cylinder in the ring bores homogenizes the field. By variation of the distance between the ring magnets and of the thickness of the steel cylinder, the magnitude of the magnetic field at the sample position can be adjusted. Furthermore, the measurement setup is compared to the electromagnet offset module based on measured signals and temperature behavior.}, language = {en} } @book{Laack2022, author = {Laack, Walter van}, title = {Schnittstelle Tod: Was lernen wir durch Corona {\"u}ber Leben und Tod?}, publisher = {van Laack GmbH}, address = {Aachen}, isbn = {978-3-936624-53-3}, pages = {108 Seiten}, year = {2022}, language = {de} } @article{FalkenbergBottBongaertsetal.2022, author = {Falkenberg, Fabian and Bott, Michael and Bongaerts, Johannes and Siegert, Petra}, title = {Phylogenetic survey of the subtilase family and a data-mining-based search for new subtilisins from Bacillaceae}, series = {Frontiers in Microbiology}, volume = {2022}, journal = {Frontiers in Microbiology}, number = {13}, publisher = {Frontiers}, address = {Lausanne}, issn = {1664-302X}, doi = {10.3389/fmicb.2022.1017978}, pages = {Artikel 13:1017978}, year = {2022}, abstract = {The subtilase family (S8), a member of the clan SB of serine proteases are ubiquitous in all kingdoms of life and fulfil different physiological functions. Subtilases are divided in several groups and especially subtilisins are of interest as they are used in various industrial sectors. Therefore, we searched for new subtilisin sequences of the family Bacillaceae using a data mining approach. The obtained 1,400 sequences were phylogenetically classified in the context of the subtilase family. This required an updated comprehensive overview of the different groups within this family. To fill this gap, we conducted a phylogenetic survey of the S8 family with characterised holotypes derived from the MEROPS database. The analysis revealed the presence of eight previously uncharacterised groups and 13 subgroups within the S8 family. The sequences that emerged from the data mining with the set filter parameters were mainly assigned to the subtilisin subgroups of true subtilisins, high-alkaline subtilisins, and phylogenetically intermediate subtilisins and represent an excellent source for new subtilisin candidates.}, language = {en} } @article{WeldenSeverinsPoghossianetal.2022, author = {Welden, Melanie and Severins, Robin and Poghossian, Arshak and Wege, Christina and Bongaerts, Johannes and Siegert, Petra and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Detection of acetoin and diacetyl by a tobacco mosaic virus-assisted field-effect biosensor}, series = {Chemosensors}, volume = {10}, journal = {Chemosensors}, number = {6}, publisher = {MDPI}, address = {Basel}, issn = {2227-9040}, doi = {10.3390/chemosensors10060218}, pages = {Artikel 218}, year = {2022}, abstract = {Acetoin and diacetyl have a major impact on the flavor of alcoholic beverages such as wine or beer. Therefore, their measurement is important during the fermentation process. Until now, gas chromatographic techniques have typically been applied; however, these require expensive laboratory equipment and trained staff, and do not allow for online monitoring. In this work, a capacitive electrolyte-insulator-semiconductor sensor modified with tobacco mosaic virus (TMV) particles as enzyme nanocarriers for the detection of acetoin and diacetyl is presented. The enzyme acetoin reductase from Alkalihalobacillus clausii DSM 8716ᵀ is immobilized via biotin-streptavidin affinity, binding to the surface of the TMV particles. The TMV-assisted biosensor is electrochemically characterized by means of leakage-current, capacitance-voltage, and constant capacitance measurements. In this paper, the novel biosensor is studied regarding its sensitivity and long-term stability in buffer solution. Moreover, the TMV-assisted capacitive field-effect sensor is applied for the detection of diacetyl for the first time. The measurement of acetoin and diacetyl with the same sensor setup is demonstrated. Finally, the successive detection of acetoin and diacetyl in buffer and in diluted beer is studied by tuning the sensitivity of the biosensor using the pH value of the measurement solution.}, language = {en} } @article{UysalFiratCreutzetal.2022, author = {Uysal, Karya and Firat, Ipek Serat and Creutz, Till and Aydin, Inci Cansu and Artmann, Gerhard and Teusch, Nicole and Temiz Artmann, Ayseg{\"u}l}, title = {A novel in vitro wound healing assay using free-standing, ultra-thin PDMS membranes}, series = {membranes}, volume = {2023}, journal = {membranes}, number = {13(1)}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/membranes13010022}, pages = {Artikel 22}, year = {2022}, abstract = {Advances in polymer science have significantly increased polymer applications in life sciences. We report the use of free-standing, ultra-thin polydimethylsiloxane (PDMS) membranes, called CellDrum, as cell culture substrates for an in vitro wound model. Dermal fibroblast monolayers from 28- and 88-year-old donors were cultured on CellDrums. By using stainless steel balls, circular cell-free areas were created in the cell layer (wounding). Sinusoidal strain of 1 Hz, 5\% strain, was applied to membranes for 30 min in 4 sessions. The gap circumference and closure rate of un-stretched samples (controls) and stretched samples were monitored over 4 days to investigate the effects of donor age and mechanical strain on wound closure. A significant decrease in gap circumference and an increase in gap closure rate were observed in trained samples from younger donors and control samples from older donors. In contrast, a significant decrease in gap closure rate and an increase in wound circumference were observed in the trained samples from older donors. Through these results, we propose the model of a cell monolayer on stretchable CellDrums as a practical tool for wound healing research. The combination of biomechanical cell loading in conjunction with analyses such as gene/protein expression seems promising beyond the scope published here.}, language = {en} } @article{OjovanSteinmetz2022, author = {Ojovan, Michael I. and Steinmetz, Hans-J{\"u}rgen}, title = {Approaches to Disposal of Nuclear Waste}, series = {Energies}, volume = {15}, journal = {Energies}, number = {20}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {10.3390/en15207804}, pages = {Artikel 7804}, year = {2022}, abstract = {We present a concise mini overview on the approaches to the disposal of nuclear waste currently used or deployed. The disposal of nuclear waste is the end point of nuclear waste management (NWM) activities and is the emplacement of waste in an appropriate facility without the intention to retrieve it. The IAEA has developed an internationally accepted classification scheme based on the end points of NWM, which is used as guidance. Retention times needed for safe isolation of waste radionuclides are estimated based on the radiotoxicity of nuclear waste. Disposal facilities usually rely on a multi-barrier defence system to isolate the waste from the biosphere, which comprises the natural geological barrier and the engineered barrier system. Disposal facilities could be of a trench type, vaults, tunnels, shafts, boreholes, or mined repositories. A graded approach relates the depth of the disposal facilities' location with the level of hazard. Disposal practices demonstrate the reliability of nuclear waste disposal with minimal expected impacts on the environment and humans.}, language = {en} } @misc{BraunKrafftTippkoetter2022, author = {Braun, Lena and Krafft, Simone and Tippk{\"o}tter, Nils}, title = {Combined supercritical carbon dioxide extraction and chromatography of the algae fatty linoleic and linolenic acid}, series = {Chemie Ingenieur Technik}, volume = {94}, journal = {Chemie Ingenieur Technik}, number = {9}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.202255308}, pages = {1304}, year = {2022}, abstract = {A method for the integrated extraction and separation of fatty acids from algae using supercritical CO2 is presented. Desmodesmus obliquus and Chlorella sorokiniana were used as algae. First, a method for chromatographic separation of fatty acids of different degrees of saturation was established and optimized. Then, an integrated method for supercritical extraction was developed for both algal species. It was also verified whether prior cell disruption was beneficial for extraction. In developing the method for chromatographic separation, statistical experimental design was used to determine the optimal parameter settings. The methanol content in the mobile phase proved to be the most important parameter for successful separation of the three unsaturated fatty acids oleic acid, linoleic acid, and linolenic acid. Supercritical extraction with dried algae showed that about four times more fatty acids can be extracted from C. sorokiniana relative to the dry mass used.}, language = {en} } @book{Laack2022, author = {Laack, Walter van}, title = {Aufruf zum Nachdenken: Corona und neue Kriege - Wie kann die Menschheit {\"u}berleben?}, publisher = {van Laack GmbH}, address = {Aachen}, isbn = {978-3-936624-56-4}, pages = {56 Seiten}, year = {2022}, language = {de} } @misc{WiegnerVolkerMainzetal.2022, author = {Wiegner, J. and Volker, H. and Mainz, F. and Backes, A. and L{\"o}ken, M. and H{\"u}ning, Felix}, title = {Wiegand-Effect-Powered Wireless IT Sensor Node}, year = {2022}, abstract = {With the growing interest in small distributed sensors for the "Internet of Things", more attention is being paid to energy harvesting techologies. Reducing or eliminating the need for external power sources or batteries make devices more self-sufficient, more reliable, and reduces maintenance requirements. The Wiegand effect is a proven technology for harvesting small amounts of electrical power from mechanical motion.}, language = {en} } @misc{FeldmannFranckeEspeetal.2022, author = {Feldmann, Marco and Francke, Gero and Espe, Clemes and Chen, Qian and Baader, Fabian and Boxberg, Marc S. and Sustrate, Anna-Marie and Kowalski, Julia and Dachwald, Bernd}, title = {Performance data of an ice-melting probe from field tests in two different ice environments}, doi = {10.5281/zenodo.6094866}, year = {2022}, abstract = {This dataset was acquired at field tests of the steerable ice-melting probe "EnEx-IceMole" (Dachwald et al., 2014). A field test in summer 2014 was used to test the melting probe's system, before the probe was shipped to Antarctica, where, in international cooperation with the MIDGE project, the objective of a sampling mission in the southern hemisphere summer 2014/2015 was to return a clean englacial sample from the subglacial brine reservoir supplying the Blood Falls at Taylor Glacier (Badgeley et al., 2017, German et al., 2021). The standardized log-files generated by the IceMole during melting operation include more than 100 operational parameters, housekeeping information, and error states, which are reported to the base station in intervals of 4 s. Occasional packet loss in data transmission resulted in a sparse number of increased sampling intervals, which where compensated for by linear interpolation during post processing. The presented dataset is based on a subset of this data: The penetration distance is calculated based on the ice screw drive encoder signal, providing the rate of rotation, and the screw's thread pitch. The melting speed is calculated from the same data, assuming the rate of rotation to be constant over one sampling interval. The contact force is calculated from the longitudinal screw force, which es measured by strain gauges. The used heating power is calculated from binary states of all heating elements, which can only be either switched on or off. Temperatures are measured at each heating element and averaged for three zones (melting head, side-wall heaters and back-plate heaters).}, language = {en} } @inproceedings{MayntzKeimerDahmannetal.2022, author = {Mayntz, Joscha and Keimer, Jona and Dahmann, Peter and Hille, Sebastian and Stumpf, Eike and Fisher, Alex and Dorrington, Graham}, title = {Electrical Drive and Regeneration in General Aviation Flight with Propellers}, series = {Deutscher Luft- und Raumfahrtkongress 2020}, booktitle = {Deutscher Luft- und Raumfahrtkongress 2020}, publisher = {DGLR}, address = {Bonn}, doi = {10.25967/530100}, pages = {8 Seiten}, year = {2022}, abstract = {Electric flight has the potential for a more sustainable and energy-saving way of aviation compared to fossil fuel aviation. The electric motor can be used as a generator inflight to regenerate energy during descent. Three different approaches to regenerating with electric propeller powertrains are proposed in this paper. The powertrain is to be set up in a wind tunnel to determine the propeller efficiency in both working modes as well as the noise emissions. Furthermore, the planned flight tests are discussed. In preparation for these tests, a yaw stability analysis is performed with the result that the aeroplane is controllable during flight and in the most critical failure case. The paper shows the potential for inflight regeneration and addresses the research gaps in the dual role of electric powertrains for propulsion and regeneration of general aviation aircraft.}, language = {en} } @inproceedings{LosseGehrkeUllrichetal.2022, author = {Losse, Ann-Kathrin and Gehrke, Melanie and Ullrich, Andr{\´e} and Czarnecki, Christian and Sultanow, Eldar and Breithaupt, Carsten and Koch, Christian}, title = {Entwicklung einer Open-Data-Referenzarchitektur f{\"u}r die Luftfahrtindustrie}, series = {INFORMATIK 2022 - Informatik in den Naturwissenschaften, Proceedings}, booktitle = {INFORMATIK 2022 - Informatik in den Naturwissenschaften, Proceedings}, publisher = {GI - Gesellschaft f{\"u}r Informatik}, address = {Bonn}, isbn = {978-3-88579-720-3}, issn = {1617-5468}, doi = {10.18420/inf2022_103}, pages = {1203 -- 1209}, year = {2022}, abstract = {Open Data impliziert die freie Zug{\"a}nglichkeit, Verf{\"u}gbarkeit und Wiederverwendbarkeit von Datens{\"a}tzen. Obwohl hochwertige Datens{\"a}tze {\"o}ffentlich verf{\"u}gbar sind, ist der Zugang zu diesen und die Transparenz {\"u}ber die Formate nicht immer gegeben. Dies mindert die optimale Nutzung des Potenzials zur Wertsch{\"o}pfung, trotz der vorherrschenden Einigkeit {\"u}ber ihre Chancen. Denn Open Data erm{\"o}glicht das Vorantreiben von Compliance-Themen wie Transparenz und Rechenschaftspflicht bis hin zur F{\"o}rderung von Innovationen. Die Nutzung von Open Data erfordert Mut und eine gemeinsame Anstrengung verschiedener Akteure und Branchen. Im Rahmen des vorliegenden Beitrags werden auf Grundlage des Design Science-Ansatzes eine Open Data Capability Map sowie darauf aufbauend eine Datenarchitektur f{\"u}r Open Data in der Luftfahrtindustrie an einem Beispiel entwickelt.}, language = {de} } @article{Finkenberger2022, author = {Finkenberger, Isabel Maria}, title = {Transformatives Forschen, Lehren und Handeln im Rheinischen Braunkohlerevier}, series = {Forum Wohnen und Stadtentwicklung}, volume = {2022}, journal = {Forum Wohnen und Stadtentwicklung}, number = {2}, publisher = {vhw}, address = {Berlin}, issn = {1439-7242}, pages = {69 -- 72}, year = {2022}, abstract = {Die Institution Hochschule hat das Potenzial, {\"u}ber transformatives Forschen und Lehren und den entsprechenden Wissenstransfer in den lokalen Kontext strategisch-verl{\"a}ssliche Partnerin der Großen Transformation zur Nachhaltigkeit zu werden und bei der Ausbildung von Pionierinnen und Pionieren des Wandels mitzuwirken. Der Lehr- und Forschungsschwerpunkt „Zukunftsf{\"a}hige Transformation" am Fachbereich Architektur der FH Aachen widmet sich seit 2020 dem Tagebauumfeld Hambach im Rheinischen Revier, um dort angewandt und in Kooperation neue Narrative, innovative Prozesse, ortsbezogene Konzepte und strategische Projekte zu entwickeln und umzusetzen.}, language = {de} } @incollection{Fabo2022, author = {Fabo, Sabine}, title = {Pandemische Momente}, series = {Interaktion - Emotion - Desinfektion ; Kunst und Museum in Zeiten von Corona / Birgit Richard, Jana M{\"u}ller, Niklas von Reischach (Hrsg.)}, booktitle = {Interaktion - Emotion - Desinfektion ; Kunst und Museum in Zeiten von Corona / Birgit Richard, Jana M{\"u}ller, Niklas von Reischach (Hrsg.)}, publisher = {Campus}, address = {Frankfurt ; New York}, isbn = {978-3-593-51520-5 (Print)}, pages = {137 -- 140}, year = {2022}, language = {de} } @article{PennerUsherovichNiedermeieretal.2022, author = {Penner, Crystal and Usherovich, Samuel and Niedermeier, Jana and B{\´e}langer-Champagne, Camille and Trinczek, Michael and Paulßen, Elisabeth and Hoehr, Cornelia}, title = {Organic Scintillator-Fibre Sensors for Proton Therapy Dosimetry: SCSF-3HF and EJ-260}, series = {electronics}, volume = {12}, journal = {electronics}, number = {1}, publisher = {MDPI}, address = {Basel}, issn = {2079-9292}, doi = {10.3390/electronics12010011}, pages = {12 Seiten}, year = {2022}, abstract = {In proton therapy, the dose from secondary neutrons to the patient can contribute to side effects and the creation of secondary cancer. A simple and fast detection system to distinguish between dose from protons and neutrons both in pretreatment verification as well as potentially in vivo monitoring is needed to minimize dose from secondary neutrons. Two 3 mm long, 1 mm diameter organic scintillators were tested for candidacy to be used in a proton-neutron discrimination detector. The SCSF-3HF (1500) scintillating fibre (Kuraray Co. Chiyoda-ku, Tokyo, Japan) and EJ-260 plastic scintillator (Eljen Technology, Sweetwater, TX, USA) were irradiated at the TRIUMF Neutron Facility and the Proton Therapy Research Centre. In the proton beam, we compared the raw Bragg peak and spread-out Bragg peak response to the industry standard Markus chamber detector. Both scintillator sensors exhibited quenching at high LET in the Bragg peak, presenting a peak-to-entrance ratio of 2.59 for the EJ-260 and 2.63 for the SCSF-3HF fibre, compared to 3.70 for the Markus chamber. The SCSF-3HF sensor demonstrated 1.3 times the sensitivity to protons and 3 times the sensitivity to neutrons as compared to the EJ-260 sensor. Combined with our equations relating neutron and proton contributions to dose during proton irradiations, and the application of Birks' quenching correction, these fibres provide valid candidates for inexpensive and replicable proton-neutron discrimination detectors}, language = {en} } @article{VahidpourGuthmanArreolaetal.2022, author = {Vahidpour, Farnoosh and Guthman, Eric and Arreola, Julia and Alghazali, Yousef H. M. and Wagner, Torsten and Sch{\"o}ning, Michael Josef}, title = {Assessment of Various Process Parameters for Optimized Sterilization Conditions Using a Multi-Sensing Platform}, series = {Foods}, volume = {11}, journal = {Foods}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2304-8158}, doi = {10.3390/foods11050660}, pages = {Artikel 660}, year = {2022}, abstract = {In this study, an online multi-sensing platform was engineered to simultaneously evaluate various process parameters of food package sterilization using gaseous hydrogen peroxide (H₂O₂). The platform enabled the validation of critical aseptic parameters. In parallel, one series of microbiological count reduction tests was performed using highly resistant spores of B. atrophaeus DSM 675 to act as the reference method for sterility validation. By means of the multi-sensing platform together with microbiological tests, we examined sterilization process parameters to define the most effective conditions with regards to the highest spore kill rate necessary for aseptic packaging. As these parameters are mutually associated, a correlation between different factors was elaborated. The resulting correlation indicated the need for specific conditions regarding the applied H₂O₂ gas temperature, the gas flow and concentration, the relative humidity and the exposure time. Finally, the novel multi-sensing platform together with the mobile electronic readout setup allowed for the online and on-site monitoring of the sterilization process, selecting the best conditions for sterility and, at the same time, reducing the use of the time-consuming and costly microbiological tests that are currently used in the food package industry.}, language = {en} } @article{PoghossianKarschuckWagneretal.2022, author = {Poghossian, Arshak and Karschuck, Tobias and Wagner, Patrick and Sch{\"o}ning, Michael Josef}, title = {Field-Effect Capacitors Decorated with Ligand-Stabilized Gold Nanoparticles: Modeling and Experiments}, series = {Biosensors}, volume = {12}, journal = {Biosensors}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2079-6374}, doi = {10.3390/bios12050334}, pages = {Artikel 334}, year = {2022}, abstract = {Nanoparticles are recognized as highly attractive tunable materials for designing field-effect biosensors with enhanced performance. In this work, we present a theoretical model for electrolyte-insulator-semiconductor capacitors (EISCAP) decorated with ligand-stabilized charged gold nanoparticles. The charged AuNPs are taken into account as additional, nanometer-sized local gates. The capacitance-voltage (C-V) curves and constant-capacitance (ConCap) signals of the AuNP-decorated EISCAPs have been simulated. The impact of the AuNP coverage on the shift of the C-V curves and the ConCap signals was also studied experimentally on Al-p-Si-SiO₂ EISCAPs decorated with positively charged aminooctanethiol-capped AuNPs. In addition, the surface of the EISCAPs, modified with AuNPs, was characterized by scanning electron microscopy for different immobilization times of the nanoparticles.}, language = {en} } @incollection{Golland2022, author = {Golland, Alexander}, title = {Kommentierung von \S 26 Telekommunikation-Telemedien-Datenschutzgesetz}, series = {TTDSG}, booktitle = {TTDSG}, editor = {Riechert, Anne and Wilmer, Thomas}, publisher = {Erich Schmidt}, address = {Berlin}, isbn = {978-3-503-20978-1}, pages = {439 -- 474}, year = {2022}, language = {de} } @incollection{Kurz2022, author = {Kurz, Melanie}, title = {Vom Werkbundstreit bis zur Papierformatnormung - welche Rolle der Chemie-Nobelpreistr{\"a}ger Friedrich Wilhelm Ostwald bei Typisierungsbestrebungen im Design spielt}, series = {Raster, Regeln, Ratio : Systematiken und Normungen des 20. Jahrhunderts}, volume = {2022}, booktitle = {Raster, Regeln, Ratio : Systematiken und Normungen des 20. Jahrhunderts}, publisher = {avedition}, address = {Stuttgart}, isbn = {978-3-89986-380-2}, pages = {6 -- 17}, year = {2022}, language = {de} } @article{SchulteTiggesFoersterNikolovskietal.2022, author = {Schulte-Tigges, Joschua and F{\"o}rster, Marco and Nikolovski, Gjorgji and Reke, Michael and Ferrein, Alexander and Kaszner, Daniel and Matheis, Dominik and Walter, Thomas}, title = {Benchmarking of various LiDAR sensors for use in self-driving vehicles in real-world environments}, series = {Sensors}, volume = {22}, journal = {Sensors}, number = {19}, publisher = {MDPI}, address = {Basel}, issn = {1424-8220}, doi = {10.3390/s22197146}, pages = {20 Seiten}, year = {2022}, abstract = {Abstract In this paper, we report on our benchmark results of the LiDAR sensors Livox Horizon, Robosense M1, Blickfeld Cube, Blickfeld Cube Range, Velodyne Velarray H800, and Innoviz Pro. The idea was to test the sensors in different typical scenarios that were defined with real-world use cases in mind, in order to find a sensor that meet the requirements of self-driving vehicles. For this, we defined static and dynamic benchmark scenarios. In the static scenarios, both LiDAR and the detection target do not move during the measurement. In dynamic scenarios, the LiDAR sensor was mounted on the vehicle which was driving toward the detection target. We tested all mentioned LiDAR sensors in both scenarios, show the results regarding the detection accuracy of the targets, and discuss their usefulness for deployment in self-driving cars.}, language = {en} } @misc{HueningBackes2022, author = {H{\"u}ning, Felix and Backes, Andreas}, title = {Wiegand-Modul}, year = {2022}, abstract = {Ein Wiegand-Modul (110;210;310) umfassend- eine Sensorspule (112;212;312),- einen ersten Wiegand-Draht (116a;216a;316a), der zumindest teilweise innerhalb der Sensorspule (112;212;312) angeordnet ist, und- einen zweiten Wiegand-Draht (116b;216b;316b), der zumindest teilweise innerhalb der Sensorspule (112;212;312) angeordnet ist und sich im Wesentlichen parallel zu dem ersten Wiegand-Draht (116a;216a;316a) erstreckt, ist bekannt.Um eine effiziente Ausnutzung der durch die Ummagnetisierung der Wiegand-Dr{\"a}hte (116a,116b;216a,216b;316a,316b) in die Sensorspule (112;212;312) induzierten elektrischen Energie zu erm{\"o}glichen, sind der erste Wiegand-Draht (116a;216a;316a) und der zweite Wiegand-Draht (116b;216b;316b) bezogen auf eine axiale Richtung der Sensorspule (112;212;312) versetzt zueinander angeordnet.}, language = {de} } @misc{RothkranzKrafftTippkoetter2022, author = {Rothkranz, Berit and Krafft, Simone and Tippk{\"o}tter, Nils}, title = {Media optimization for sustainable fuel production: How to produce biohydrogen from renewable resources with Thermotoga neapolitana}, series = {Chemie Ingenieur Technik}, volume = {94}, journal = {Chemie Ingenieur Technik}, number = {9}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.202255305}, pages = {1298 -- 1299}, year = {2022}, abstract = {Hydrogen is playing an increasingly important role in research and politics as an energy carrier of the future. Since hydrogen has commonly been produced from methane by steam reforming, the need for climate-friendly, alternative production routes is emerging. In addition to electrolysis, fermentative routes for the production of so-called biohydrogen are "green" alternatives. The application of microorganisms offers the advantage of sustainable production from renewable resources using easily manageable technologies. In this project, the hyperthermophilic, anaerobic microorganism Thermotoga neapolitana is used for the productio nof biohydrogen from renewable resources. The enzymatically hydrolyzed resources were used in fermentation leading to yield coefficients of 1.8 mole H₂ per mole glucose when using hydrolyzed straw and ryegrass supplemented with medium, respectively. These results are similar to the hydrogen yields when using Thermotoga basal medium with glucose (TBGY) as control group. In order to minimize the supplementation of the hydrolysate and thus increase the economic efficiency of the process, the essential media components were identified. The experiments revealed NaCl, KCl, and glucose as essential components for cell growth as well as biohydrogen production. When excluding NaCl, a decrease of 96\% in hydrogen production occured.}, language = {en} } @misc{VarrialeKukaTippkoetteretal.2022, author = {Varriale, Ludovica and Kuka, Katrin and Tippk{\"o}tter, Nils and Ulber, Roland}, title = {Use of a green biomass in a biorefinery platform}, series = {Chemie Ingenieur Technik}, volume = {94}, journal = {Chemie Ingenieur Technik}, number = {9}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.202255095}, pages = {1299}, year = {2022}, abstract = {The emerging environmental issues due to the use of fossil resources are encouraging the exploration of new renewable resources. Biomasses are attracting more interest due to the low environmental impacts, low costs, and high availability on earth. In this scenario, green biorefineries are a promising platform in which green biomasses are used as feedstock. Grasses are mainly composed of cellulose and hemicellulose, and lignin is available in a small amount. In this work, a perennial ryegrass was used as feedstock to develop a green bio-refinery platform. Firstly, the grass was mechanically pretreated, thus obtaining a press juice and a press cake fraction. The press juice has high nutritional values and can be employed as part of fermentation media. The press cake can be employed as a substrate either in enzymatic hydrolysis or in solid-state fermentation. The overall aim of this work was to demonstrate different applications of both the liquid and the solid fractions. For this purpose, the filamentous fungus A. niger and the yeast Y. lipolythica were selected for their ability to produce citric acid. Finally, the possibility was assessed to use the press juice as part of fermentation media to cultivate S. cerevisiae and lactic acid bacteria for ethanol and lactic acid fermentation.}, language = {en} } @book{KurzSchwer2022, author = {Kurz, Melanie and Schwer, Thilo}, title = {Geschichte des Designs}, edition = {1. Auflage}, publisher = {Beck}, address = {M{\"u}nchen}, isbn = {978-3-406-78813-0}, pages = {128 Seiten}, year = {2022}, abstract = {Dieser Band bietet einen kompakten {\"U}berblick {\"u}ber die wichtigsten Stationen des Produktdesigns vom Beginn der Industrialisierung bis heute. Im Zentrum stehen ikonische Alltagsgegenst{\"a}nde vom Thonet-Stuhl bis zum iPhone. Anschaulich und kenntnisreich nehmen Melanie Kurz und Thilo Schwer dabei auch die gesellschaftspolitische Situation, in der die Objekte entstanden sind, in den Blick.}, language = {de} } @article{HoffmannUhlCeblinetal.2022, author = {Hoffmann, Andreas and Uhl, Matthias and Ceblin, Maximilian and Rohrbach, Felix and Bansmann, Joachim and Mallah, Marcel and Heuermann, Holger and Jacob, Timo and Kuehne, Alexander J.C.}, title = {Atmospheric pressure plasma-jet treatment of PAN-nonwovens—carbonization of nanofiber electrodes}, series = {C - Journal of Carbon Research}, volume = {8}, journal = {C - Journal of Carbon Research}, number = {3}, publisher = {MDPI}, address = {Basel}, issn = {2311-5629}, doi = {10.3390/c8030033}, pages = {8 Seiten}, year = {2022}, abstract = {Carbon nanofibers are produced from dielectric polymer precursors such as polyacrylonitrile (PAN). Carbonized nanofiber nonwovens show high surface area and good electrical conductivity, rendering these fiber materials interesting for application as electrodes in batteries, fuel cells, and supercapacitors. However, thermal processing is slow and costly, which is why new processing techniques have been explored for carbon fiber tows. Alternatives for the conversion of PAN-precursors into carbon fiber nonwovens are scarce. Here, we utilize an atmospheric pressure plasma jet to conduct carbonization of stabilized PAN nanofiber nonwovens. We explore the influence of various processing parameters on the conductivity and degree of carbonization of the converted nanofiber material. The precursor fibers are converted by plasma-jet treatment to carbon fiber nonwovens within seconds, by which they develop a rough surface making subsequent surface activation processes obsolete. The resulting carbon nanofiber nonwovens are applied as supercapacitor electrodes and examined by cyclic voltammetry and impedance spectroscopy. Nonwovens that are carbonized within 60 s show capacitances of up to 5 F g⁻¹.}, language = {en} } @article{MuellerSeginWeigandetal.2022, author = {Mueller, Tobias and Segin, Alexander and Weigand, Christoph and Schmitt, Robert H.}, title = {Feature selection for measurement models}, series = {International journal of quality \& reliability management}, journal = {International journal of quality \& reliability management}, number = {Vol. ahead-of-print, No. ahead-of-print.}, publisher = {Emerald Group Publishing Limited}, address = {Bingley}, issn = {0265-671X}, doi = {10.1108/IJQRM-07-2021-0245}, year = {2022}, abstract = {Purpose In the determination of the measurement uncertainty, the GUM procedure requires the building of a measurement model that establishes a functional relationship between the measurand and all influencing quantities. Since the effort of modelling as well as quantifying the measurement uncertainties depend on the number of influencing quantities considered, the aim of this study is to determine relevant influencing quantities and to remove irrelevant ones from the dataset. Design/methodology/approach In this work, it was investigated whether the effort of modelling for the determination of measurement uncertainty can be reduced by the use of feature selection (FS) methods. For this purpose, 9 different FS methods were tested on 16 artificial test datasets, whose properties (number of data points, number of features, complexity, features with low influence and redundant features) were varied via a design of experiments. Findings Based on a success metric, the stability, universality and complexity of the method, two FS methods could be identified that reliably identify relevant and irrelevant influencing quantities for a measurement model. Originality/value For the first time, FS methods were applied to datasets with properties of classical measurement processes. The simulation-based results serve as a basis for further research in the field of FS for measurement models. The identified algorithms will be applied to real measurement processes in the future.}, language = {en} } @article{GaigallGerstenbergTrinh2022, author = {Gaigall, Daniel and Gerstenberg, Julian and Trinh, Thi Thu Ha}, title = {Empirical process of concomitants for partly categorial data and applications in statistics}, series = {Bernoulli}, volume = {28}, journal = {Bernoulli}, number = {2}, publisher = {International Statistical Institute}, address = {Den Haag, NL}, issn = {1573-9759}, doi = {10.3150/21-BEJ1367}, pages = {803 -- 829}, year = {2022}, abstract = {On the basis of independent and identically distributed bivariate random vectors, where the components are categorial and continuous variables, respectively, the related concomitants, also called induced order statistic, are considered. The main theoretical result is a functional central limit theorem for the empirical process of the concomitants in a triangular array setting. A natural application is hypothesis testing. An independence test and a two-sample test are investigated in detail. The fairly general setting enables limit results under local alternatives and bootstrap samples. For the comparison with existing tests from the literature simulation studies are conducted. The empirical results obtained confirm the theoretical findings.}, language = {en} } @article{FunkeEschRoosen2022, author = {Funke, Harald and Esch, Thomas and Roosen, Petra}, title = {Powertrain Adaptions for LPG Usage in General Aviation}, series = {MTZ worldwide}, volume = {2022}, journal = {MTZ worldwide}, number = {83}, publisher = {Springer Nature}, address = {Basel}, doi = {10.1007/s38313-021-0756-6}, pages = {58 -- 62}, year = {2022}, abstract = {In general aviation, too, it is desirable to be able to operate existing internal combustion engines with fuels that produce less CO₂ than Avgas 100LL being widely used today It can be assumed that, in comparison, the fuels CNG, LPG or LNG, which are gaseous under normal conditions, produce significantly lower emissions. Necessary propulsion system adaptations were investigated as part of a research project at Aachen University of Applied Sciences.}, language = {en} } @article{Fabo2022, author = {Fabo, Sabine}, title = {Das Parasit{\"a}re in der Pandemie}, series = {Parasite Art}, journal = {Parasite Art}, number = {Issue 2}, editor = {Wirth, Jacob}, publisher = {Parasite Art}, pages = {8 -- 11}, year = {2022}, language = {de} } @article{DitzhausGaigall2022, author = {Ditzhaus, Marc and Gaigall, Daniel}, title = {Testing marginal homogeneity in Hilbert spaces with applications to stock market returns}, series = {Test}, volume = {2022}, journal = {Test}, number = {31}, publisher = {Springer}, issn = {1863-8260}, doi = {10.1007/s11749-022-00802-5}, pages = {749 -- 770}, year = {2022}, abstract = {This paper considers a paired data framework and discusses the question of marginal homogeneity of bivariate high-dimensional or functional data. The related testing problem can be endowed into a more general setting for paired random variables taking values in a general Hilbert space. To address this problem, a Cram{\´e}r-von-Mises type test statistic is applied and a bootstrap procedure is suggested to obtain critical values and finally a consistent test. The desired properties of a bootstrap test can be derived that are asymptotic exactness under the null hypothesis and consistency under alternatives. Simulations show the quality of the test in the finite sample case. A possible application is the comparison of two possibly dependent stock market returns based on functional data. The approach is demonstrated based on historical data for different stock market indices.}, language = {en} } @article{ZhantlessovaSavitskayaKistaubayevaetal.2022, author = {Zhantlessova, Sirina and Savitskaya, Irina and Kistaubayeva, Aida and Ignatova, Ludmila and Talipova, Aizhan and Pogrebnjak, Alexander and Digel, Ilya}, title = {Advanced "Green" prebiotic composite of bacterial cellulose/pullulan based on synthetic biology-powered microbial coculture strategy}, series = {Polymers}, volume = {14}, journal = {Polymers}, number = {15}, publisher = {MDPI}, address = {Basel}, issn = {2073-4360}, doi = {10.3390/polym14153224}, pages = {Artikel 3224}, year = {2022}, abstract = {Bacterial cellulose (BC) is a biopolymer produced by different microorganisms, but in biotechnological practice, Komagataeibacter xylinus is used. The micro- and nanofibrillar structure of BC, which forms many different-sized pores, creates prerequisites for the introduction of other polymers into it, including those synthesized by other microorganisms. The study aims to develop a cocultivation system of BC and prebiotic producers to obtain BC-based composite material with prebiotic activity. In this study, pullulan (PUL) was found to stimulate the growth of the probiotic strain Lactobacillus rhamnosus GG better than the other microbial polysaccharides gellan and xanthan. BC/PUL biocomposite with prebiotic properties was obtained by cocultivation of Komagataeibacter xylinus and Aureobasidium pullulans, BC and PUL producers respectively, on molasses medium. The inclusion of PUL in BC is proved gravimetrically by scanning electron microscopy and by Fourier transformed infrared spectroscopy. Cocultivation demonstrated a composite effect on the aggregation and binding of BC fibers, which led to a significant improvement in mechanical properties. The developed approach for "grafting" of prebiotic activity on BC allows preparation of environmentally friendly composites of better quality.}, language = {en} } @incollection{Golland2022, author = {Golland, Alexander}, title = {Kommentierung von \S 7 Telekommunikation-Telemedien-Datenschutzgesetz}, series = {TTDSG}, booktitle = {TTDSG}, editor = {Riechert, Anne and Wilmer, Thomas}, publisher = {Erich Schmidt}, address = {Berlin}, isbn = {978-3-503-20978-1}, pages = {145 -- 151}, year = {2022}, language = {de} } @misc{Zimmer2022, type = {Master Thesis}, author = {Zimmer, Miriam}, title = {Uniform : Identit{\"a}tsbildende Prozesse uniformer Bekleidungspraxen}, publisher = {FH Aachen}, address = {Aachen}, pages = {241 Seiten}, year = {2022}, abstract = {Kleidung umgibt den menschlichen K{\"o}rper seit etwa 75.000 Jahren. Seitdem dient sie dabei l{\"a}ngst mehr nur als Schutz, sondern ist zu einem wichtigen Kommunikationsmittel geworden. Vor allem Identit{\"a}t spielte schon immer eine wichtige Rolle in ihrer Funktion. Im 15. Jahrhundert entstand die erste Uniform, die durch identische Kleidung Zusammengeh{\"o}rigkeit vermitteln sollte. Dieses Konzept findet heute in der Corporate Fashion, Berufskleidung und zivilen Kontexten Verwendung und vermittelt nebenher Visionen und Philosophien der Corporate Identities. In dieser Arbeit wurde eine tiefgehende Recherche {\"u}ber die Geschichte, Funktion und Wirkung von Uniformen betrieben und Kategorien untersucht, in die sich diese einteilen lassen. Anschließend wurden die Ergebnisse in einem ausgew{\"a}hlten Layout als Buch zusammengefasst und mit Portraits uniformtragender Menschen unterst{\"u}tzt. Abschließend folgt ein Leitfaden, der eine gezielte Gestaltung von Uniformen erm{\"o}glicht.}, language = {de} } @inproceedings{EggertChwallekWollf2022, author = {Eggert, Mathias and Chwallek, Constanze and Wollf, Frederik}, title = {The role of environmental factors for the success of digital start-ups}, series = {ECIS 2022 Research Papers}, booktitle = {ECIS 2022 Research Papers}, pages = {1 -- 16}, year = {2022}, abstract = {Digital start-ups are perceived as an engine for innovation and job promotor. While success factors for non-IT start-ups have already been extensively researched, this study sheds light on digital entrepreneurs, whose business model relies primarily on services based on digital technologies. Applying the Grounded Theory method, we identify relevant environmental success factors for digital entrepreneurs. The study's research contribution is threefold. First, we provide 16 relevant and less relevant environmental success factors, which enables a comparison with prior identified factors. We found out that several prior environmental success factors, such as accessibility to transportation or the availability of land and facilities are less relevant for a digital entrepreneur. Second, we derive and discuss hypotheses for the influence of these factors on digital start-up success. Third, we present a theoretical model that lays the foundation for explaining the environmental influence on digital entrepreneurship success.}, language = {de} } @masterthesis{TrinidadAvila2022, type = {Bachelor Thesis}, author = {Trinidad Avila, Maria Alejandra}, title = {Work Habitat : Modular-skalierbare Office Markenstrategie f{\"u}r rasant wachsende Startups}, publisher = {FH Aachen}, address = {Aachen}, pages = {141 Seiten}, year = {2022}, abstract = {„Work Habitat" ist eine markenorientierte Officel{\"o}sung, die auf skalierbare Weise mit einem Start-up mitw{\"a}chst und in Kooperation mit dem Unternehmen academa GmbH entstanden ist. Diese Brand Experience f{\"o}rdert Teambuilding und Identifikation mit dem Unternehmen. Sie passt sich an die Teammitglieder an, indem sie einen ganzheitlichen Blick auf das Office-System bewahrt. Ferner stellt sie eine nahtlose Verbindung digitaler und analoger Arbeitswelten dar und bietet eine einladende Umgebung verschiedener Arten zu Arbeiten an: von Deep-Focus bis zur kooperativen Zusammenarbeit und der Anregung zwangloser Begegnungen. Die modularen Komponenten k{\"o}nnen trotz Ver{\"a}nderungen, Umz{\"u}gen oder unerwartet rasanten Entwicklungen nachhaltig und flexibel eingesetzt werden. Eine schnelllebige Welt erfordert eine angebrachte, sich ihr anpassende New-Work-Umgebung.}, language = {de} } @masterthesis{Wetzlar2022, type = {Bachelor Thesis}, author = {Wetzlar, Jana}, title = {Vielgut Festival 2022 : Etablierung eines neuen Musikfestivals in Aachen}, publisher = {FH Aachen}, address = {Aachen}, pages = {45 Seiten}, year = {2022}, abstract = {Endlich! Nach {\"u}ber zwei Jahren kulturellen Stillstands richtet der Musiknetzwerk Aachen e.V. ein Festival aus. Die Bachelorandin Jana Wetzlar {\"u}bernimmt hierbei die Veranstaltungsplanung und -bewerbung. Der erste Teil der Arbeit umfasst die Erarbeitung eines einzigartigen Festivalkonzepts, bei dem die F{\"o}rderung von jungen Newcomerk{\"u}nstler:innen und die {\"o}kologische Nachhaltigkeit der Veranstaltung im Vordergrund stehen. Eine weitere Besonderheit stellt das parit{\"a}tisch besetzte K{\"u}nstler:innen-Line-Up dar. Im zweiten Teil der Arbeit wurden eine umfangreiche Werbekampagne sowie ein passendes Corporate Design entwickelt, die die Besonderheiten des Festivals hervorheben und viele Festivalbesucher:innen generieren sollen. Die {\"u}bergeordneten Ziele der Arbeit bestehen darin, einen Beitrag zur gesellschaftlichen Etablierung des Musiknetzwerk Aachen e.V. zu leisten und die Voraussetzungen f{\"u}r ein j{\"a}hrlich wiederkehrendes Festival zu schaffen.}, language = {de} } @masterthesis{Schiffers2022, type = {Bachelor Thesis}, author = {Schiffers, Simon}, title = {Historische Stoffe im Spielfilm : Zwischen Authentizit{\"a}t und Unterhaltung}, publisher = {FH Aachen}, address = {Aachen}, pages = {107 Seiten}, year = {2022}, abstract = {Historische Stoffe im Spielfilm Zwischen Authentizit{\"a}t und Unterhaltung Spielfilme {\"u}ber wahre Begebenheiten stellen sich der Herausforderung, historisch korrekte Darstellung mit einer spannenden und sehenswerten Pr{\"a}sentation zu kombinieren. Dies ist ein schwieriger Balance Akt, gerade bei Studentenprojekten mit geringem Budget. Im Kurzfilm {\"u}ber Julius Erasmus, dem „Totengr{\"a}ber von Vossenack", wurde sich dieser Aufgabe gestellt. Inhaltlich werden seine m{\"o}glichen Beweggr{\"u}nde dargestellt, die ihn dazu brachten kurz nach dem 2. Weltkrieg zahlreiche gefallene Soldaten im ehemaligen Kampfgebiet im H{\"u}rtgenwald zu begraben. Die schriftliche Dokumentation des Projektes zeigt die Recherche des verfilmten Stoffes, Herausforderungen w{\"a}hrend der Produktion, sowie pers{\"o}nliche Eindr{\"u}cke und Lerneffekte. Letztendlich ist ein Werk entstanden, dass respektvoll mit der zu Grunde liegenden Geschichte umgeht und gleichsam ein cineastisches Erlebnis f{\"u}r den Zuschauer darstellt.}, language = {de} } @article{PourshahidiEngelmannOffenhaeusseretal.2022, author = {Pourshahidi, Ali Mohammad and Engelmann, Ulrich M. and Offenh{\"a}usser, Andreas and Krause, Hans-Joachim}, title = {Resolving ambiguities in core size determination of magnetic nanoparticles from magnetic frequency mixing data}, series = {Journal of Magnetism and Magnetic Materials}, volume = {563}, journal = {Journal of Magnetism and Magnetic Materials}, number = {In progress, Art. No. 169969}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0304-8853}, doi = {10.1016/j.jmmm.2022.169969}, year = {2022}, abstract = {Frequency mixing magnetic detection (FMMD) has been widely utilized as a measurement technique in magnetic immunoassays. It can also be used for the characterization and distinction (also known as "colourization") of different types of magnetic nanoparticles (MNPs) based on their core sizes. In a previous work, it was shown that the large particles contribute most of the FMMD signal. This leads to ambiguities in core size determination from fitting since the contribution of the small-sized particles is almost undetectable among the strong responses from the large ones. In this work, we report on how this ambiguity can be overcome by modelling the signal intensity using the Langevin model in thermodynamic equilibrium including a lognormal core size distribution fL(dc,d0,σ) fitted to experimentally measured FMMD data of immobilized MNPs. For each given median diameter d0, an ambiguous amount of best-fitting pairs of parameters distribution width σ and number of particles Np with R2 > 0.99 are extracted. By determining the samples' total iron mass, mFe, with inductively coupled plasma optical emission spectrometry (ICP-OES), we are then able to identify the one specific best-fitting pair (σ, Np) one uniquely. With this additional externally measured parameter, we resolved the ambiguity in core size distribution and determined the parameters (d0, σ, Np) directly from FMMD measurements, allowing precise MNPs sample characterization.}, language = {en} } @article{MonakhovaDiehl2022, author = {Monakhova, Yulia and Diehl, Bernd W.K.}, title = {Nuclear magnetic resonance spectroscopy as an elegant tool for a complete quality control of crude heparin material}, series = {Journal of Pharmaceutical and Biomedical Analysis}, volume = {219}, journal = {Journal of Pharmaceutical and Biomedical Analysis}, number = {Article number: 114915}, publisher = {Elsevier}, address = {New York, NY}, issn = {0731-7085}, doi = {10.1016/j.jpba.2022.114915}, year = {2022}, abstract = {Nuclear magnetic resonance (NMR) spectrometric methods for the quantitative analysis of pure heparin in crude heparin is proposed. For quantification, a two-step routine was developed using a USP heparin reference sample for calibration and benzoic acid as an internal standard. The method was successfully validated for its accuracy, reproducibility, and precision. The methodology was used to analyze 20 authentic porcine heparinoid samples having heparin content between 4.25 w/w \% and 64.4 w/w \%. The characterization of crude heparin products was further extended to a simultaneous analysis of these common ions: sodium, calcium, acetate and chloride. A significant, linear dependence was found between anticoagulant activity and assayed heparin content for thirteen heparinoids samples, for which reference data were available. A Diffused-ordered NMR experiment (DOSY) can be used for qualitative analysis of specific glycosaminoglycans (GAGs) in heparinoid matrices and, potentially, for quantitative prediction of molecular weight of GAGs. NMR spectrometry therefore represents a unique analytical method suitable for the simultaneous quantitative control of organic and inorganic composition of crude heparin samples (especially heparin content) as well as an estimation of other physical and quality parameters (molecular weight, animal origin and activity).}, language = {en} } @article{BurgerLindnerRumpfetal.2022, author = {Burger, Ren{\´e} and Lindner, Simon and Rumpf, Jessica and Do, Xuan Tung and Diehl, Bernd W.K. and Rehahn, Matthias and Monakhova, Yulia and Schulze, Margit}, title = {Benchtop versus high field NMR: Comparable performance found for the molecular weight determination of lignin}, series = {Journal of Pharmaceutical and Biomedical Analysis}, volume = {212}, journal = {Journal of Pharmaceutical and Biomedical Analysis}, number = {Article number: 114649}, publisher = {Elsevier}, address = {New York, NY}, isbn = {0731-7085}, doi = {10.1016/j.jpba.2022.114649}, year = {2022}, abstract = {Lignin is a promising renewable biopolymer being investigated worldwide as an environmentally benign substitute of fossil-based aromatic compounds, e.g. for the use as an excipient with antioxidant and antimicrobial properties in drug delivery or even as active compound. For its successful implementation into process streams, a quick, easy, and reliable method is needed for its molecular weight determination. Here we present a method using 1H spectra of benchtop as well as conventional NMR systems in combination with multivariate data analysis, to determine lignin's molecular weight (Mw and Mn) and polydispersity index (PDI). A set of 36 organosolv lignin samples (from Miscanthus x giganteus, Paulownia tomentosa and Silphium perfoliatum) was used for the calibration and cross validation, and 17 samples were used as external validation set. Validation errors between 5.6\% and 12.9\% were achieved for all parameters on all NMR devices (43, 60, 500 and 600 MHz). Surprisingly, no significant difference in the performance of the benchtop and high-field devices was found. This facilitates the application of this method for determining lignin's molecular weight in an industrial environment because of the low maintenance expenditure, small footprint, ruggedness, and low cost of permanent magnet benchtop NMR systems.}, language = {en} } @article{MonakhovaSobolevaFedotovaetal.2022, author = {Monakhova, Yulia and Soboleva, Polina M. and Fedotova, Elena S. and Musina, Kristina T. and Burmistrova, Natalia A.}, title = {Quantum chemical calculations of IR spectra of heparin disaccharide subunits}, series = {Computational and Theoretical Chemistry}, volume = {1217}, journal = {Computational and Theoretical Chemistry}, number = {Article number: 113891}, publisher = {Elsevier}, address = {New York, NY}, isbn = {2210-271X}, doi = {10.1016/j.comptc.2022.113891}, year = {2022}, abstract = {Heparin is a natural polysaccharide, which plays essential role in many biological processes. Alterations in building blocks can modify biological roles of commercial heparin products, due to significant changes in the conformation of the polymer chain. The variability structure of heparin leads to difficulty in quality control using different analytical methods, including infrared (IR) spectroscopy. In this paper molecular modelling of heparin disaccharide subunits was performed using quantum chemistry. The structural and spectral parameters of these disaccharides have been calculated using RHF/6-311G. In addition, over-sulphated chondroitin sulphate disaccharide was studied as one of the most widespread contaminants of heparin. Calculated IR spectra were analyzed with respect to specific structure parameters. IR spectroscopic fingerprint was found to be sensitive to substitution pattern of disaccharide subunits. Vibrational assignments of calculated spectra were correlated with experimental IR spectral bands of native heparin. Chemometrics was used to perform multivariate analysis of simulated spectral data.}, language = {en} } @misc{Vogt2022, type = {Master Thesis}, author = {Vogt, Lena}, title = {Arch{\"a}ologischer Restaurator : Ausstellungskonzept R{\"o}misch-Germanisches Museum K{\"o}ln}, publisher = {FH Aachen}, address = {Aachen}, pages = {23 Seiten}, year = {2022}, abstract = {Alte, geschichtsrelevante und thematisch angeordnete Objekte, welche man in den Vitrinen der Museen betrachten kann, das kennt sicher jeder. Doch wie kommen diese Artefakte eigentlich in die Vitrinen? Welche Menschen sind daf{\"u}r verantwortlich, dass wir diese Kulturg{\"u}ter bestaunen k{\"o}nnen? In diesem tempor{\"a}ren Ausstellungskonzept f{\"u}r das R{\"o}misch-Germanische Museum K{\"o}ln geht es darum, die sonst verborgene Arbeit der Restauratoren des Museums f{\"u}r die Besucher:innen sichtbar zu machen, ihnen genauere Einblicke in die Arbeit mit ihren Anforderungen zu geben und Restaurierungsprozesse auf zu zeigen. Diese Arbeit demonstriert, wie es abseits der {\"O}ffentlichkeit aussieht und wer daf{\"u}r verantwortlich ist, dass wir einen Einblick in die vergangenen Zeit erhalten k{\"o}nnen. Das Projekt zeigt eine m{\"o}gliche Bespielung des Museums, wie das Berufsbild der Restauratoren in die Dauerausstellung integriert werden k{\"o}nnte.}, language = {de} } @masterthesis{Laubkermeier2022, type = {Bachelor Thesis}, author = {Laubkermeier, Kim}, title = {trust me}, publisher = {FH Aachen}, address = {Aachen}, pages = {94 Seiten}, year = {2022}, abstract = {"trust me" ist eine schwarz-weiß Fotoserie, pr{\"a}sentiert als Diashow mit unterlegtem Soundtrack. Es geht um das Vertrauen zwischen Model, Fotografin und Betrachter:innen. Die Darsteller sind ausschließlich homosexuelle M{\"a}nner und begeben sich in intime Situationen und Posen. Die Fotos sind {\"u}berwiegend Aktaufnahmen und nehmen eine pornografische Richtung an. Die Fragestellung zu Beginn war, wie weit vertrauen die unerfahrenen Models der Fotografin und was sind diese bereit, von sich zu zeigen. Die offene Kommunikation {\"u}ber die Richtung des Projekts war die essenzielle Basis f{\"u}r die Fotoshootings. W{\"a}hrend des Fotografierens lag der Fokus auf m{\"o}glichst verschiedenen Blickwinkeln, Kulissen, Ausleuchtungen und Motiven. Zus{\"a}tzlich war der sensible Umgang mit den M{\"a}nnern eine Vertrauensprobe."trust me" l{\"a}sst auf diversen Ebenen tief blicken und zeigt, wie loslassen aussieht.}, language = {de} } @masterthesis{Theis2022, type = {Bachelor Thesis}, author = {Theis, Alina Naomi}, title = {Nur ein Freitag : Ein Kurzfilm {\"u}ber Verlust und Freundschaft im Schatten des Zweiten Weltkrieges.}, publisher = {FH Aachen}, address = {Aachen}, pages = {103 Seiten}, year = {2022}, abstract = {Der Film zeigt die wahre Geschichte des 15-j{\"a}hrigen Hans Jokisch, welche auf den Erz{\"a}hlungen seiner j{\"u}ngeren Schwester, der Zeitzeugin Maria Theis (geb. Jokisch), beruhen. Der Fokus liegt auf der Sichtweise von Kindern und Jugendlichen, einer Generation, die mit dem und im Zweiten Weltkrieg aufgewachsen ist und die gleichzeitig die letzte Generation ist, die uns das Erlebte noch aus erster Hand berichten kann. Hans gelangt mit seiner Familie nach einer harten Flucht vor der Frontlinie zur{\"u}ck in seine Heimat in Schlesien. Doch ihr geliebtes Heim ist besetzt von Familie Sch{\"o}ppe. Sie haben keine Wahl, die beiden Familien m{\"u}ssen sich das Haus von nun an teilen. Im Laufe der Zeit wird das Jokisch Haus auch f{\"u}r Familie Sch{\"o}ppe ein Zuhause und Hans freundet sich mit dem Jungen Bruno Sch{\"o}ppe an. Als Deutschland 1945 kapituliert und Schlesien nun zu Polen geh{\"o}rt, m{\"u}ssen pl{\"o}tzlich beide Familien endg{\"u}ltig das Haus und all ihren Besitz zur{\"u}cklassen. Hans und Bruno beschließen, die Zwangsenteignung nicht hinzunehmen, doch ihr naiver Plan wird ihnen fast zum Verh{\"a}ngnis.}, language = {de} } @masterthesis{Nelles2022, type = {Bachelor Thesis}, author = {Nelles, Charlene}, title = {Brain Hack}, publisher = {FH Aachen}, address = {Aachen}, pages = {77 Seiten}, year = {2022}, abstract = {Protagonistin des Films ist Cassandra Becker, eine 25-j{\"a}hrige Informatikstudentin und Mitglied der Hackerorganisation PFABW (Progress For a Better World). Sie hat es sich zum Ziel gesetzt, die Welt zu einem besseren Ort zu machen. Sie legt sich allerdings mit den falschen Leuten an und wird f{\"u}r die Verbreitung eines zerst{\"o}rerischen Computervirus verantwortlich gemacht, der gesundheitliche Folgen f{\"u}r den Menschen mit sich bringt. Sie und ihr bester Freund Jake Fischer haben bei einem PFABW-Mitglied Zuflucht gefunden. Dort versuchen sie gemeinsam herauszufinden, was es mit dem mysteri{\"o}sen Virus auf sich hat.}, language = {de} } @article{HaegerBongaertsSiegert2022, author = {Haeger, Gerrit and Bongaerts, Johannes and Siegert, Petra}, title = {A convenient ninhydrin assay in 96-well format for amino acid-releasing enzymes using an air-stable reagent}, series = {Analytical Biochemistry}, journal = {Analytical Biochemistry}, number = {624}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1096-0309}, doi = {10.1016/j.ab.2022.114819}, pages = {Artikel 114819}, year = {2022}, abstract = {An improved and convenient ninhydrin assay for aminoacylase activity measurements was developed using the commercial EZ Nin™ reagent. Alternative reagents from literature were also evaluated and compared. The addition of DMSO to the reagent enhanced the solubility of Ruhemann's purple (RP). Furthermore, we found that the use of a basic, aqueous buffer enhances stability of RP. An acidic protocol for the quantification of lysine was developed by addition of glacial acetic acid. The assay allows for parallel processing in a 96-well format with measurements microtiter plates.}, language = {en} } @incollection{Finkenberger2022, author = {Finkenberger, Isabel Maria}, title = {R{\"a}umliche Transformation als Planungsaufgabe}, series = {Zur{\"u}ck in die Zukunft. Denkmalpflege und Strukturwandel im Rheinischen Revier}, booktitle = {Zur{\"u}ck in die Zukunft. Denkmalpflege und Strukturwandel im Rheinischen Revier}, editor = {Pufke, Andrea}, publisher = {LVR-Amt f{\"u}r Denkmalpflege im Rheinland}, address = {Pulheim}, pages = {70 -- 77}, year = {2022}, language = {de} } @inproceedings{LangohrBungCrookston2022, author = {Langohr, Philipp and Bung, Daniel Bernhard and Crookston, Brian M.}, title = {Hybrid investigation of labyrinth weirs: Discharge capacity and energy dissipation}, series = {Proceedings of the 39th IAHR World Congress}, booktitle = {Proceedings of the 39th IAHR World Congress}, editor = {Ortega-S{\´a}nchez, Miguel}, publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)}, address = {Madrid}, isbn = {978-90-832612-1-8}, issn = {2521-7119 (print)}, doi = {10.3850/IAHR-39WC252171192022738}, pages = {2313 -- 2318}, year = {2022}, abstract = {The replacement of existing spillway crests or gates with labyrinth weirs is a proven techno-economical means to increase the discharge capacity when rehabilitating existing structures. However, additional information is needed regarding energy dissipation of such weirs, since due to the folded weir crest, a three-dimensional flow field is generated, yielding more complex overflow and energy dissipation processes. In this study, CFD simulations of labyrinth weirs were conducted 1) to analyze the discharge coefficients for different discharges to compare the Cd values to literature data and 2) to analyze and improve energy dissipation downstream of the structure. All tests were performed for a structure at laboratory scale with a height of approx. P = 30.5 cm, a ratio of the total crest length to the total width of 4.7, a sidewall angle of 10° and a quarter-round weir crest shape. Tested headwater ratios were 0.089 ≤ HT/P ≤ 0.817. For numerical simulations, FLOW-3D Hydro was employed, solving the RANS equations with use of finite-volume method and RNG k-ε turbulence closure. In terms of discharge capacity, results were compared to data from physical model tests performed at the Utah Water Research Laboratory (Utah State University), emphasizing higher discharge coefficients from CFD than from the physical model. For upstream heads, some discrepancy in the range of ± 1 cm between literature, CFD and physical model tests was identified with a discussion regarding differences included in the manuscript. For downstream energy dissipation, variable tailwater depths were considered to analyze the formation and sweep-out of a hydraulic jump. It was found that even for high discharges, relatively low downstream Froude numbers were obtained due to high energy dissipation involved by the three-dimensional flow between the sidewalls. The effects of some additional energy dissipation devices, e.g. baffle blocks or end sills, were also analyzed. End sills were found to be non-effective. However, baffle blocks with different locations may improve energy dissipation downstream of labyrinth weirs.}, language = {en} } @inproceedings{CrookstonBung2022, author = {Crookston, Brian M. and Bung, Daniel Bernhard}, title = {Application of RGB-D cameras in hydraulic laboratory studies}, series = {Proceedings of the 39th IAHR World Congress}, booktitle = {Proceedings of the 39th IAHR World Congress}, editor = {Ortega-S{\´a}nchez, Miguel}, publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)}, address = {Madrid}, isbn = {978-90-832612-1-8}, issn = {2521-7119 (print)}, doi = {10.3850/IAHR-39WC252171192022964}, pages = {5127 -- 5133}, year = {2022}, abstract = {Non-intrusive measuring techniques have attained a lot of interest in relation to both hydraulic modeling and prototype applications. Complimenting acoustic techniques, significant progress has been made for the development of new optical methods. Computer vision techniques can help to extract new information, e. g. high-resolution velocity and depth data, from videos captured with relatively inexpensive, consumer-grade cameras. Depth cameras are sensors providing information on the distance between the camera and observed features. Currently, sensors with different working principles are available. Stereoscopic systems reference physical image features (passive system) from two perspectives; in order to enhance the number of features and improve the results, a sensor may also estimate the disparity from a detected light to its original projection (active stereo system). In the current study, the RGB-D camera Intel RealSense D435, working on such stereo vision principle, is used in different, typical hydraulic modeling applications. All tests have been conducted at the Utah Water Research Laboratory. This paper will demonstrate the performance and limitations of the RGB-D sensor, installed as a single camera and as camera arrays, applied to 1) detect the free surface for highly turbulent, aerated hydraulic jumps, for free-falling jets and for an energy dissipation basin downstream of a labyrinth weir and 2) to monitor local scours upstream and downstream of a Piano Key Weir. It is intended to share the authors' experiences with respect to camera settings, calibration, lightning conditions and other requirements in order to promote this useful, easily accessible device. Results will be compared to data from classical instrumentation and the literature. It will be shown that even in difficult application, e. g. the detection of a highly turbulent, fluctuating free-surface, the RGB-D sensor may yield similar accuracy as classical, intrusive probes.}, language = {en} } @inproceedings{TranTrinhDaoetal.2022, author = {Tran, Ngoc Trinh and Trinh, Tu Luc and Dao, Ngoc Tien and Giap, Van Tan and Truong, Manh Khuyen and Dinh, Thuy Ha and Staat, Manfred}, title = {Limit and shakedown analysis of structures under random strength}, series = {Proceedings of (NACOME2022) The 11th National Conference on Mechanics, Vol. 1. Solid Mechanics, Rock Mechanics, Artificial Intelligence, Teaching and Training}, booktitle = {Proceedings of (NACOME2022) The 11th National Conference on Mechanics, Vol. 1. Solid Mechanics, Rock Mechanics, Artificial Intelligence, Teaching and Training}, publisher = {Nha xuat ban Khoa hoc tu nhien va Cong nghe (Verlag Naturwissenschaft und Technik)}, address = {Hanoi}, isbn = {978-604-357-084-7}, pages = {510 -- 518}, year = {2022}, abstract = {Direct methods comprising limit and shakedown analysis is a branch of computational mechanics. It plays a significant role in mechanical and civil engineering design. The concept of direct method aims to determinate the ultimate load bearing capacity of structures beyond the elastic range. For practical problems, the direct methods lead to nonlinear convex optimization problems with a large number of variables and onstraints. If strength and loading are random quantities, the problem of shakedown analysis is considered as stochastic programming. This paper presents a method so called chance constrained programming, an effective method of stochastic programming, to solve shakedown analysis problem under random condition of strength. In this our investigation, the loading is deterministic, the strength is distributed as normal or lognormal variables.}, language = {en} } @misc{KeimerGirbigMayntzetal.2022, author = {Keimer, Jona and Girbig, Leo and Mayntz, Joscha and Tegtmeyer, Philipp and Wendland, Frederik and Dahman, Peter and Fisher, Alex and Dorrington, Graham}, title = {Flight mission optimization for eco-efficiency in consideration of electric regeneration and atmospheric conditions}, series = {AIAA AVIATION 2022 Forum}, journal = {AIAA AVIATION 2022 Forum}, publisher = {AIAA}, address = {Reston, Va.}, doi = {10.2514/6.2022-4118}, year = {2022}, abstract = {The development and operation of hybrid or purely electrically powered aircraft in regional air mobility is a significant challenge for the entire aviation sector. This technology is expected to lead to substantial advances in flight performance, energy efficiency, reliability, safety, noise reduction, and exhaust emissions. Nevertheless, any consumed energy results in heat or carbon dioxide emissions and limited electric energy storage capabilities suppress commercial use. Therefore, the significant challenges to achieving eco-efficient aviation are increased aircraft efficiency, the development of new energy storage technologies, and the optimization of flight operations. Two major approaches for higher eco-efficiency are identified: The first one, is to take horizontal and vertical atmospheric motion phenomena into account. Where, in particular, atmospheric waves hold exciting potential. The second one is the use of the regeneration ability of electric aircraft. The fusion of both strategies is expected to improve efficiency. The objective is to reduce energy consumption during flight while not neglecting commercial usability and convenient flight characteristics. Therefore, an optimized control problem based on a general aviation class aircraft has to be developed and validated by flight experiments. The formulated approach enables a development of detailed knowledge of the potential and limitations of optimizing flight missions, considering the capability of regeneration and atmospheric influences to increase efficiency and range.}, language = {en} } @article{AkimbekovDigelTastambeketal.2022, author = {Akimbekov, Nuraly S. and Digel, Ilya and Tastambek, Kuanysh T. and Marat, Adel K. and Turaliyeva, Moldir A. and Kaiyrmanova, Gulzhan K.}, title = {Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production}, series = {Biology}, volume = {11}, journal = {Biology}, number = {9}, publisher = {MDPI}, address = {Basel}, issn = {2079-7737}, doi = {10.3390/biology11091306}, pages = {47 Seiten}, year = {2022}, abstract = {It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal biogeochemical dynamics and ecosystem functioning. The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in microbiology. Coal degradation/conversion technology by native bacterial and fungal species has great potential in agricultural development, chemical industry production, and environmental rehabilitation. Furthermore, native microalgal species can offer a sustainable energy source and an excellent bioremediation strategy applicable to coal spill/seam waters. Additionally, the measures of the fate of the microbial community would serve as an indicator of restoration progress on post-coal-mining sites. This review puts forward a comprehensive vision of coal biodegradation and bioprocessing by microorganisms native to coal environments for determining their biotechnological potential and possible applications.}, language = {en} } @misc{KrafftKukaUlberetal.2022, author = {Krafft, Simone and Kuka, Katrin and Ulber, Roland and Tippk{\"o}tter, Nils}, title = {Utilization of Lolium perenne varieties as a renewable substrate for single-cell proteins, lactate, and composite materials}, series = {Chemie Ingenieur Technik}, volume = {94}, journal = {Chemie Ingenieur Technik}, number = {9}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.202255306}, pages = {1303 -- 1304}, year = {2022}, abstract = {Lolium perenne (perennial ryegrass) is aproductive and high-quality forage grass indigenous to Southern Europe, temperate Asia, and North Africa. Nowadays it is widespread and the dominant grass species on green areas in temperate climates. This abundant source of biomass is suitable for the development of bioeconomic processes because of its high cellulose and water-soluble carbohydrate content. In this work, novel breeds of the perennial ryegrass are being examined with regards to their quality parameters and biotechnological utilization options within the context of bioeconomy. Three processing operations are presented. In the first process, the perennial ryegrass is pretreated by pressing or hydrothermal extraction to derive glucosevia subsequent enzymatic hydrolysis of cellulose. A yield of up to 82 \% glucose was achieved when using the hydrothermal ex-traction as pretreatment. In a second process, the ryegrass is used to produce lactic acid in high concentrations. The influence of the growth conditions and the cutting time on the carboxylic acid yield is investigated. A yield of lactic acid of above 150 g kg⁻¹ dry matter was achieved. The third process is to use Lolium perenne as a substrate in the fermentation of K. marxianus for the microbial production of single-cell proteins. The perennial ryegrass is screw-pressed and the press juice is used as medium. When supplementing the press juice with yeast media components, a biomass concentration of up to 16 g L⁻¹ could be achieved.}, language = {en} } @misc{TopcuMadabhushiStaat2022, author = {Topcu, Murat and Madabhushi, Gopal Santana Phani and Staat, Manfred}, title = {Datasets from FEM Simulations done with COMSOL Multiphysics and Code_Aster}, doi = {10.6084/m9.figshare.19333295.v2}, year = {2022}, abstract = {Datasets from FEM Simulations done with COMSOL Multiphysics and Code_Aster for an elastic stress transfer between matrix and fibres having a variable radius.}, language = {en} } @article{ThiebesKleinZingsheimetal.2022, author = {Thiebes, Anja Lena and Klein, Sarah and Zingsheim, Jonas and M{\"o}ller, Georg H. and G{\"u}rzing, Stefanie and Reddemann, Manuel A. and Behbahani, Mehdi and Cornelissen, Christian G.}, title = {Effervescent atomizer as novel cell spray technology to decrease the gas-to-liquid ratio}, series = {pharmaceutics}, volume = {14}, journal = {pharmaceutics}, number = {11}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/pharmaceutics14112421}, pages = {Artikel 2421}, year = {2022}, abstract = {Cell spraying has become a feasible application method for cell therapy and tissue engineering approaches. Different devices have been used with varying success. Often, twin-fluid atomizers are used, which require a high gas velocity for optimal aerosolization characteristics. To decrease the amount and velocity of required air, a custom-made atomizer was designed based on the effervescent principle. Different designs were evaluated regarding spray characteristics and their influence on human adipose-derived mesenchymal stromal cells. The arithmetic mean diameters of the droplets were 15.4-33.5 µm with decreasing diameters for increasing gas-to-liquid ratios. The survival rate was >90\% of the control for the lowest gas-to-liquid ratio. For higher ratios, cell survival decreased to approximately 50\%. Further experiments were performed with the design, which had shown the highest survival rates. After seven days, no significant differences in metabolic activity were observed. The apoptosis rates were not influenced by aerosolization, while high gas-to-liquid ratios caused increased necrosis levels. Tri-lineage differentiation potential into adipocytes, chondrocytes, and osteoblasts was not negatively influenced by aerosolization. Thus, the effervescent aerosolization principle was proven suitable for cell applications requiring reduced amounts of supplied air. This is the first time an effervescent atomizer was used for cell processing.}, language = {en} } @inproceedings{VeettilRakshitSchopenetal.2022, author = {Veettil, Yadu Krishna Morassery and Rakshit, Shantam and Schopen, Oliver and Kemper, Hans and Esch, Thomas and Shabani, Bahman}, title = {Automated Control System Strategies to Ensure Safety of PEM Fuel Cells Using Kalman Filters}, series = {Proceedings of the 7th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM 2021), Melaka, Malaysia}, booktitle = {Proceedings of the 7th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM 2021), Melaka, Malaysia}, editor = {Bin Abdollah, Mohd Fadzli and Amiruddin, Hilmi and Singh, Amrik Singh Phuman and Munir, Fudhail Abdul and Ibrahim, Asriana}, publisher = {Springer Nature}, address = {Singapore}, isbn = {978-981-19-3178-9}, issn = {2195-4356}, doi = {10.1007/978-981-19-3179-6_55}, pages = {296 -- 299}, year = {2022}, abstract = {Having well-defined control strategies for fuel cells, that can efficiently detect errors and take corrective action is critically important for safety in all applications, and especially so in aviation. The algorithms not only ensure operator safety by monitoring the fuel cell and connected components, but also contribute to extending the health of the fuel cell, its durability and safe operation over its lifetime. While sensors are used to provide peripheral data surrounding the fuel cell, the internal states of the fuel cell cannot be directly measured. To overcome this restriction, Kalman Filter has been implemented as an internal state observer. Other safety conditions are evaluated using real-time data from every connected sensor and corrective actions automatically take place to ensure safety. The algorithms discussed in this paper have been validated thorough Model-in-the-Loop (MiL) tests as well as practical validation at a dedicated test bench.}, language = {en} } @book{Laack2022, author = {Laack, Walter van}, title = {Greater Than the Entire Universe}, publisher = {van Laack GmbH}, address = {Aachen}, isbn = {978-3-936624-52-6}, pages = {120 Seiten}, year = {2022}, language = {en} } @inproceedings{TamaldinMansorMatYaminetal.2022, author = {Tamaldin, Noreffendy and Mansor, Muhd Rizuan and Mat Yamin, Ahmad Kamal and Bin Abdollah, Mohd Fazli and Esch, Thomas and Tonoli, Andrea and Reisinger, Karl Heinz and Sprenger, Hanna and Razuli, Hisham}, title = {Development of UTeM United Future Fuel Design Training Center Under Erasmus+ United Program}, series = {Proceedings of the 7th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM 2021), Melaka, Malaysia}, booktitle = {Proceedings of the 7th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM 2021), Melaka, Malaysia}, editor = {Bin Abdollah, Mohd Fadzli and Amiruddin, Hilmi and Singh, Amrik Singh Phuman and Munir, Fudhail Abdul and Ibrahim, Asriana}, publisher = {Springer Nature}, address = {Singapore}, isbn = {978-981-19-3178-9}, issn = {2195-4356}, doi = {10.1007/978-981-19-3179-6_50}, pages = {274 -- 278}, year = {2022}, abstract = {The industrial revolution IR4.0 era have driven many states of the art technologies to be introduced especially in the automotive industry. The rapid development of automotive industries in Europe have created wide industry gap between European Union (EU) and developing countries such as in South-East Asia (SEA). Indulging this situation, FH Joanneum, Austria together with European partners from FH Aachen, Germany and Politecnico Di Torino, Italy is taking initiative to close the gap utilizing the Erasmus+ United grant from EU. A consortium was founded to engage with automotive technology transfer using the European ramework to Malaysian, Indonesian and Thailand Higher Education Institutions (HEI) as well as automotive industries. This could be achieved by establishing Engineering Knowledge Transfer Unit (EKTU) in respective SEA institutions guided by the industry partners in their respective countries. This EKTU could offer updated, innovative, and high-quality training courses to increase graduate's employability in higher education institutions and strengthen relations between HEI and the wider economic and social environment by addressing Universityindustry cooperation which is the regional priority for Asia. It is expected that, the Capacity Building Initiative would improve the quality of higher education and enhancing its relevance for the labor market and society in the SEA partners. The outcome of this project would greatly benefit the partners in strong and complementary partnership targeting the automotive industry and enhanced larger scale international cooperation between the European and SEA partners. It would also prepare the SEA HEI in sustainable partnership with Automotive industry in the region as a mean of income generation in the future.}, language = {en} } @inproceedings{StaatTran2022, author = {Staat, Manfred and Tran, Ngoc Trinh}, title = {Strain based brittle failure criteria for rocks}, series = {Proceedings of (NACOME2022) The 11th National Conference on Mechanics, Vol. 1. Solid Mechanics, Rock Mechanics, Artificial Intelligence, Teaching and Training}, booktitle = {Proceedings of (NACOME2022) The 11th National Conference on Mechanics, Vol. 1. Solid Mechanics, Rock Mechanics, Artificial Intelligence, Teaching and Training}, publisher = {Nha xuat ban Khoa hoc tu nhien va Cong nghe (Verlag Naturwissenschaft und Technik)}, address = {Hanoi}, isbn = {978-604-357-084-7}, pages = {500 -- 509}, year = {2022}, abstract = {When confining pressure is low or absent, extensional fractures are typical, with fractures occurring on unloaded planes in rock. These "paradox" fractures can be explained by a phenomenological extension strain failure criterion. In the past, a simple empirical criterion for fracture initiation in brittle rock has been developed. But this criterion makes unrealistic strength predictions in biaxial compression and tension. A new extension strain criterion overcomes this limitation by adding a weighted principal shear component. The weight is chosen, such that the enriched extension strain criterion represents the same failure surface as the Mohr-Coulomb (MC) criterion. Thus, the MC criterion has been derived as an extension strain criterion predicting failure modes, which are unexpected in the understanding of the failure of cohesive-frictional materials. In progressive damage of rock, the most likely fracture direction is orthogonal to the maximum extension strain. The enriched extension strain criterion is proposed as a threshold surface for crack initiation CI and crack damage CD and as a failure surface at peak P. Examples show that the enriched extension strain criterion predicts much lower volumes of damaged rock mass compared to the simple extension strain criterion.}, language = {en} } @article{Timme2022, author = {Timme, Michael}, title = {Beweislast beim gutgl{\"a}ubigen Erwerb eines Kraftfahrzeugs ohne Erhalt der Zulassungsbescheinigung Teil II — Zugleich eine Besprechung von BGH, Urt. v. 23.9.2022 - V ZR 148/21, MDR 2022, 1542}, series = {Monatsschrift f{\"u}r Deutsches Recht}, volume = {77}, journal = {Monatsschrift f{\"u}r Deutsches Recht}, number = {1}, publisher = {Verlag Dr. Otto Schmidt}, address = {K{\"o}ln}, issn = {0340-1812}, doi = {doi.org/10.9785/mdtr-2023-770102}, pages = {r5 -- r7}, year = {2022}, abstract = {Im Handel mit Kraftfahrzeugen geh{\"o}ren Aspekte des gutgl{\"a}ubigen Erwerbs zu den beinahe allt{\"a}glichen Standardproblemen. Der BGH f{\"u}gt in seiner Entscheidung v. 23.9.2022-VZR148/21, MDR 2022, 1541 diesem im Detail breit gef{\"a}cherten Themenfeld einen weiteren Mosaikstein hinzu: Der Erwerber erhielt das verkaufte Kfz ohne {\"U}bergabe einer Zulassungsbescheinigung Teil II, behauptet aber, diese Bescheinigung sei dem vom ihm eingeschalteten Vermittler bei Erwerb (als F{\"a}lschung) vorgelegt worden. Tats{\"a}chlich befand sich das Original durchg{\"a}ngig beim wahren Eigent{\"u}mer, der nunmehr Herausgabe des Fahrzeugs verlangt. Der BGH sch{\"u}tzt in dieser Gestaltung im Ergebnis den Erwerber. Die Entscheidung ist in mehrfacher Hinsicht bemerkenswert.}, language = {de} } @article{KahmannRauschPluemeretal.2022, author = {Kahmann, Stephanie L. and Rausch, Valentin and Pl{\"u}mer, Jonathan and M{\"u}ller, Lars P. and Pieper, Martin and Wegmann, Kilian}, title = {The automized fracture edge detection and generation of three-dimensional fracture probability heat maps}, series = {Medical Engineering \& Physics}, volume = {2022}, journal = {Medical Engineering \& Physics}, number = {110}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1350-4533}, pages = {7 Seiten}, year = {2022}, abstract = {With proven impact of statistical fracture analysis on fracture classifications, it is desirable to minimize the manual work and to maximize repeatability of this approach. We address this with an algorithm that reduces the manual effort to segmentation, fragment identification and reduction. The fracture edge detection and heat map generation are performed automatically. With the same input, the algorithm always delivers the same output. The tool transforms one intact template consecutively onto each fractured specimen by linear least square optimization, detects the fragment edges in the template and then superimposes them to generate a fracture probability heat map. We hypothesized that the algorithm runs faster than the manual evaluation and with low (< 5 mm) deviation. We tested the hypothesis in 10 fractured proximal humeri and found that it performs with good accuracy (2.5 mm ± 2.4 mm averaged Euclidean distance) and speed (23 times faster). When applied to a distal humerus, a tibia plateau, and a scaphoid fracture, the run times were low (1-2 min), and the detected edges correct by visual judgement. In the geometrically complex acetabulum, at a run time of 78 min some outliers were considered acceptable. An automatically generated fracture probability heat map based on 50 proximal humerus fractures matches the areas of high risk of fracture reported in medical literature. Such automation of the fracture analysis method is advantageous and could be extended to reduce the manual effort even further.}, language = {en} } @masterthesis{Kaspor2022, type = {Bachelor Thesis}, author = {Kaspor, Alexej}, title = {Kritik der digitalen Rationalisierung}, publisher = {FH Aachen}, address = {Aachen}, pages = {135 Seiten}, year = {2022}, abstract = {Digitalisierung macht's m{\"o}glich: mittlerweile beziehen sich Designer:innen in ihrer Konzeptentwicklung immer h{\"a}ufiger auf Referenzdesigns. Sie picken sich die Eigenschaften aus ihnen heraus, von denen sie sich die gr{\"o}ßte Marktf{\"a}higkeit versprechen, und basteln sie zu einem neuen Produkt zusammen. Voil{\`a}. Doch wie unkonventionell kann Design noch sein? Wie viel Luft bleibt der Kreativit{\"a}t unter dem immer enger geschn{\"u}rten Korsett der Marktf{\"a}higkeit? Alexej Kaspor er{\"o}ffnet die Diskussion mit einem provokanten Projekt, das einen kritischen Blick in die Zukunft des Industriedesigns wirft. Dazu fasst er g{\"a}ngige Designprogramme in einer Software zusammen und verbindet sie mit einer k{\"u}nstlichen Intelligenz, die die aktuelle Entwicklung digital rationalisieren und auf die Spitze treiben soll. Diese f{\"u}hrt Meta-Analysen {\"u}ber das Nutzungsverhalten durch und pr{\"u}ft damit Frameworks von Referenzdesigns auf ihre Vermarktbarkeit. Aus diesen entwickelt sie dann Gestaltungsvorschl{\"a}ge, ohne beim Seiltanz zwischen Trendh{\"o}rigkeit und Scheinindividualismus aus dem Gleichgewicht zu kommen. Innerhalb von Sekunden werden den Designer:innen perfekte Vorschl{\"a}ge {\"u}bers Metaverse simuliert. Auf dem Silbertablett serviert, {\"u}bersichtlich und gef{\"a}hrlich einfach. Bereit, kombiniert und in Produktion gebracht zu werden. Auch mit dem Tracking der KI kann niemand mithalten: um immer am Puls der Zeit zu bleiben, benachrichtigt sie die Designer:innen in Echtzeit {\"u}ber die neuesten Innovationen und Trends. Ressourcenraubendes Herumprobieren in CAD-Programmen geh{\"o}rt also der Vergangenheit an. Das Programm schafft Abhilfe, und verspricht dabei auch noch die h{\"o}chste Effizienz, konkret: garantiertes Kapital. Schlagende Argumente, die die Schw{\"a}chen der Konsumgesellschaft und Kommerzialisierung gezielt ausgenutzen. Es entsteht die perfekte Marketingmaßnahme, ein genialer Treiber f{\"u}r den Turbokapitalismus. Kram, den niemand braucht und zynische Statussymbole inklusive. Der Stolz der geltungsbed{\"u}rftigen Designer:innen wird dabei selbstverst{\"a}ndlich nicht untergraben. Sie sollen mitziehen. Mit zahlreichen Notches wird der Erfolg und die Konkurrenzf{\"a}higkeit des Produkts prognostiziert und ihnen Honig ums Maul geschmiert. Die beklemmende Vorahnung wird sich best{\"a}tigen. Schritt f{\"u}r Schritt enteignet die KI den Designer:innen ihre Kreativit{\"a}t, bis sie nicht mehr sind als die Kurator:innen berechenbarer Produktkonzepte. Der Sp{\"a}tkapitalismus hat sie in der Mangel. Versprochen: diese Arbeit l{\"a}sst niemanden kalt.}, language = {de} } @inproceedings{SattlerSchneiderAngeleetal.2022, author = {Sattler, Johannes Christoph and Schneider, Iesse Peer and Angele, Florian and Atti, Vikrama Naga Babu and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Development of heliostat field calibration methods: Theory and experimental test results}, series = {SolarPACES 2022 conference proceedings}, booktitle = {SolarPACES 2022 conference proceedings}, number = {1}, publisher = {TIB Open Publishing}, address = {Hannover}, issn = {2751-9899 (online)}, doi = {10.52825/solarpaces.v1i.678}, pages = {9 Seiten}, year = {2022}, abstract = {In this work, three patent pending calibration methods for heliostat fields of central receiver systems (CRS) developed by the Solar-Institut J{\"u}lich (SIJ) of the FH Aachen University of Applied Sciences are presented. The calibration methods can either operate in a combined mode or in stand-alone mode. The first calibration method, method A, foresees that a camera matrix is placed into the receiver plane where it is subjected to concentrated solar irradiance during a measurement process. The second calibration method, method B, uses an unmanned aerial vehicle (UAV) such as a quadrocopter to automatically fly into the reflected solar irradiance cross-section of one or more heliostats (two variants of method B were tested). The third calibration method, method C, foresees a stereo central camera or multiple stereo cameras installed e.g. on the solar tower whereby the orientations of the heliostats are calculated from the location detection of spherical red markers attached to the heliostats. The most accurate method is method A which has a mean accuracy of 0.17 mrad. The mean accuracy of method B variant 1 is 1.36 mrad and of variant 2 is 1.73 mrad. Method C has a mean accuracy of 15.07 mrad. For method B there is great potential regarding improving the measurement accuracy. For method C the collected data was not sufficient for determining whether or not there is potential for improving the accuracy.}, language = {en} } @inproceedings{SattlerAttiAlexopoulosetal.2022, author = {Sattler, Johannes Christoph and Atti, Vikrama Naga Babu and Alexopoulos, Spiros and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf and Dutta, Siddharth and Kioutsioukis, Ioannis}, title = {DNI forecast tool for the smart operation of a parabolic trough collector system with concrete thermal energy storage: Theory, results and outlook}, series = {SolarPACES 2022 conference proceedings}, booktitle = {SolarPACES 2022 conference proceedings}, number = {1}, publisher = {TIB Open Publishing}, address = {Hannover}, issn = {2751-9899 (online)}, doi = {10.52825/solarpaces.v1i.731}, pages = {9 Seiten}, year = {2022}, abstract = {This work presents a basic forecast tool for predicting direct normal irradiance (DNI) in hourly resolution, which the Solar-Institut J{\"u}lich (SIJ) is developing within a research project. The DNI forecast data shall be used for a parabolic trough collector (PTC) system with a concrete thermal energy storage (C-TES) located at the company KEAN Soft Drinks Ltd in Limassol, Cyprus. On a daily basis, 24-hour DNI prediction data in hourly resolution shall be automatically produced using free or very low-cost weather forecast data as input. The purpose of the DNI forecast tool is to automatically transfer the DNI forecast data on a daily basis to a main control unit (MCU). The MCU automatically makes a smart decision on the operation mode of the PTC system such as steam production mode and/or C-TES charging mode. The DNI forecast tool was evaluated using historical data of measured DNI from an on-site weather station, which was compared to the DNI forecast data. The DNI forecast tool was tested using data from 56 days between January and March 2022, which included days with a strong variation in DNI due to cloud passages. For the evaluation of the DNI forecast reliability, three categories were created and the forecast data was sorted accordingly. The result was that the DNI forecast tool has a reliability of 71.4 \% based on the tested days. The result fulfils SIJ's aim to achieve a reliability of around 70 \%, but SIJ aims to still improve the DNI forecast quality.}, language = {en} } @masterthesis{NiggeMans2022, type = {Bachelor Thesis}, author = {Nigge-Mans, Leonard}, title = {Entwicklung einer Arbeitsplatzleuchte}, publisher = {FH Aachen}, address = {Aachen}, pages = {74 Seiten}, year = {2022}, abstract = {F{\"u}r manche mag es banal wirken, doch f{\"u}r Gestalter:innen ist sie unverzichtbar: eine wirklich gute Leuchte f{\"u}r den Arbeitsplatz. Sie hat n{\"a}mlich einen enormen Einfluss auf die Konzentration und den Komfort. Zudem erm{\"o}glicht gutes Licht erst ein sauberes und farbechtes Ergebnis. Daf{\"u}r wurde in diesem Projekt die perfekte Leuchte entwickelt. Sie leuchtet die Arbeitsfl{\"a}che ideal aus und unterst{\"u}tzt das Lesen, Schreiben oder die Arbeit mit technischen Ger{\"a}ten. Durch f{\"u}nf Drehpunkte ist die Leuchte in alle Richtungen zu bewegen und l{\"a}sst sich somit individuell auf ihre Aufgaben anpassen. Außerdem wurde Wert daraufgelegt, bestehende Normen und Vorschiften einzuhalten, um den Arbeit- und Gesundheitsschutz zu gew{\"a}hrleisten. Feierabend? Durch die Dim-Funktion wird die Arbeitsleuchte zu einer gem{\"u}tlichen Lichtquelle. Unter anderem durch die unsichtbare Stromf{\"u}hrung {\"u}berzeugt die Lampe mit ihrer minimalistischen Designsprache und l{\"a}sst sich in unterschiedlichste R{\"a}ume integrieren.}, language = {de} } @masterthesis{Lesmeister2022, type = {Bachelor Thesis}, author = {Lesmeister, David}, title = {VIUR : urbanes Lagerfeuer}, publisher = {FH Aachen}, address = {Aachen}, pages = {131 Seiten}, year = {2022}, abstract = {Es kann ganze Lebensr{\"a}ume ausl{\"o}schen, und doch w{\"a}re unsere Welt nicht die gleiche ohne Feuer. Feuer spielt eine wichtige Rolle in der menschlichen Evolution und diente unseren Vorfahren zum Schutz vor wilden Tieren, Kochen und zum W{\"a}rmen. Auch Gespr{\"a}che am Lagerfeuer sollen einen erheblichen Einfluss auf die soziale und kulturelle Evolution des Menschen gehabt haben. Kein Wunder also, dass die Menschen bis heute mit Feuer ein Gef{\"u}hl von Gemeinschaft und Geborgenheit verbinden. Genau diese Wirkung greift „VIUR" auf und macht Feuer alltagstauglich f{\"u}r eine Welt, die von Urbanisierung und Digitalisierung gepr{\"a}gt ist. Entstanden ist ein Hybrid aus einem Tischfeuer und einem Grill. Somit entsteht sowohl das sinnliche Erlebnis einer Feuerstelle als auch die M{\"o}glichkeit, kleine Speisen zuzubereiten. Die smarte Konstruktion und ein Sicherheitsbrennstoff, mit dem sich kaum Rauch entwickeln kann, erm{\"o}glicht die Nutzung im kleinen Garten, aber eben auch auf einem Stadtbalkon. So kann das Lagerfeuer wieder seinen Zauber entfalten.}, language = {de} } @masterthesis{Lebrecht2022, type = {Bachelor Thesis}, author = {Lebrecht, Rike-Charlotte}, title = {Inga : ein modulares hydroponisches System f{\"u}r Endverbraucher}, publisher = {FH Aachen}, address = {Aachen}, year = {2022}, abstract = {In dieser Arbeit wurde sich mit der Frage auseinandergesetzt, wie sich der Nahrungsmittelanbau im urbanen Raum entwickeln k{\"o}nnte. Eine spannende Alternative zu traditionellen Anbaumethoden ist die Hydroponik, der Anbau von Pflanzen ohne Erde. Basierend auf dieser Technologie wurde in diesem Projekt ein Indoor-Garden-System gestaltet, welches den Nahrungsmittelanbau zur{\"u}ck zur Verbraucher:In bringt und zu einem bewussteren Umgang mit Lebensmitteln anregen soll. Denn mit „INGA" kann frisches, pestizidfreies Blattgem{\"u}se ganz einfach zu Hause selbst angebaut werden. Das hydroponische System schafft mithilfe einer N{\"a}hrstoffl{\"o}sung und k{\"u}nstlichem Licht optimale Wachstumsbedingungen f{\"u}r die Pflanzen - ganz unabh{\"a}ngig von {\"o}rtlichen Gegebenheiten. Mithilfe seiner Modularit{\"a}t k{\"o}nnen Nutzer:Innen „INGA" nach Belieben konfigurieren. Damit wird es einer breiten Zielgruppe mit unterschiedlichen Bed{\"u}rfnissen gerecht und erm{\"o}glicht pestizidfreie Nahrung - auch in den St{\"a}dten.}, language = {de} } @masterthesis{Menrath2022, type = {Bachelor Thesis}, author = {Menrath, Maike}, title = {Konzept zur Lebensmittelnahversorgung außerhalb urbaner Strukturen : Verkaufspunkt f{\"u}r l{\"a}ndliche Gebiete}, publisher = {FH Aachen}, address = {Aachen}, pages = {131 Seiten}, year = {2022}, abstract = {L{\"a}ndliche Regionen sind h{\"a}ufig infrastrukturell schlechter versorgt als urbane R{\"a}ume, was sich insbesondere auf die Versorgung mit G{\"u}tern des t{\"a}glichen Bedarfs niederschl{\"a}gt. Menschen außerhalb st{\"a}dtischer Ballungsgebiete m{\"u}ssen deswegen oft lange Anfahrten zu Superm{\"a}rkten in Kauf nehmen. Hierbei sind sie vor allem auf das Auto angewiesen. In dieser Arbeit ist „ILSE" entstanden. Eine Verkaufsbox, die Menschen in l{\"a}ndlichen Raumstrukturen besser mit Waren versorgt, indem sie dort aufgestellt wird, wo sie auch wirklich ben{\"o}tigt wird. Dank digitaler Verkaufstechnologien ist „ILSE" durchgehend ge{\"o}ffnet, auch, wenn andere Superm{\"a}rkte l{\"a}ngst geschlossen sind. Mit einer App wird der Kundschaft der Zugang zum Verkaufsraum und das Bezahlen erm{\"o}glicht.}, language = {de} } @masterthesis{Frank2022, type = {Bachelor Thesis}, author = {Frank, Jemima Leonie}, title = {Falling in love with the female gaze}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {81 Seiten}, year = {2022}, abstract = {Der „Male Gaze" bezeichnet das typische Erleben der Umwelt aus m{\"a}nnlicher Perspektive und pr{\"a}gt in den sogenannten Mainstream-Medien die Gestaltung von Film, Fernsehen und Werbung. Dadurch werden von dargestellten Personen h{\"a}ufig die k{\"o}rperlichen Aspekte hervorgehoben. Im Gegensatz dazu gilt das weibliche Pendant, der „Female Gaze", als besonders emotionsbetont. Weil Medien einen enormen Einfluss auf gesellschaftliches und individuelles Denken haben, stellt die Dominanz des „Male Gaze" eine Unausgeglichenheit dar, die sich in verschiedenen Bereichen des gesellschaftlichen Lebens widerspiegelt. Deswegen m{\"o}chte dieses Projekt die Medien um die weibliche Sichtweise erweitern und damit die dort transportierten Bilder diverser und ausgewogener machen. Die Fotografie fokussiert sich dabei auf die Gef{\"u}hlswelt der Protagonistin, womit die Betrachter:Innen schrittweise in ihre Position hineinversetzt werden sollen. Mit Augen des Mitgef{\"u}hls und eigenem Sch{\"o}nheitsbegriff l{\"a}sst „Falling in love with the female gaze" endlich auch die Frau zu Wort kommen.}, language = {de} } @masterthesis{Horvath2022, type = {Bachelor Thesis}, author = {Horvath, Nicolas}, title = {Neues Corporate Design f{\"u}r das Rautenstrauch Joest Museum K{\"o}ln}, publisher = {FH Aachen}, address = {Aachen}, pages = {138}, year = {2022}, abstract = {Der Mensch in seinen Welten - das Konzept des Rautenstrauch Joest Museums verfolgt den Ansatz des Kulturvergleichs und strebt im Zuge dessen die Betonung der Ebenb{\"u}rtigkeit aller Kulturen an. Die Sammlung unterteilt sich nicht - wie gewohnt - anhand geografischer Gesichtspunkte, sondern behandelt Themen, die Menschen auf der ganzen Welt besch{\"a}ftigen. Das in dieser Arbeit gestaltete neue Erscheinungsbild greift den ver{\"a}nderten gesellschaftlichen Stellenwert von ethnologischen Museen auf und positioniert das Museum als aktiven Diskussionsteilnehmer im Zuge des Postkolonialismus. Das entwickelte Key-Visual aus eigener Schrift, einheitlicher Rastersystematik und pr{\"a}gnantem Farbkonzept gibt einen Einblick darin, wie Menschen fr{\"u}her probiert haben, ihre Welt zu verstehen und sie zu erschließen.}, language = {de} } @masterthesis{Ebert2022, type = {Bachelor Thesis}, author = {Ebert, Julia}, title = {Die unsichtbare Gefahr : Mikroplastik}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {23 Seiten}, year = {2022}, abstract = {Bereits ein einziger pr{\"u}fender Blick in einen klassischen Privathaushalt vermittelt einen ersten Eindruck davon, wie allgegenw{\"a}rtig Kunststoff im menschlichen Leben ist. H{\"a}ufig {\"u}bersehen wird dabei Mikroplastik, welches im Verh{\"a}ltnis zu seinen gravierenden Auswirkungen auf Mensch und Umwelt in der {\"o}ffentlichen Diskussion bislang noch wenig Beachtung findet. Das f{\"u}hrt dazu, dass die Problematik durch unaufgekl{\"a}rten Konsum weiter angefacht wird. Die Gestaltung des visuellen Magazins m{\"o}chte {\"u}ber die Konsequenzen von Mikroplastik aufkl{\"a}ren und das Bewusstsein {\"u}ber das pers{\"o}nliche Konsumverhalten sch{\"a}rfen. Mithilfe kurzer Infotexte wird die Problematik aus der wissenschaftlichen Perspektive der Umweltorganisationen beleuchtet und durch ausgew{\"a}hlte Mikroskop-Aufnahmen illustriert. Hiermit werden unsichtbare Krisentreiber endlich sichtbar gemacht.}, language = {de} } @masterthesis{Braun2022, type = {Bachelor Thesis}, author = {Braun, Linus}, title = {Faces - Lebenswerte Mobilit{\"a}t in St{\"a}dten}, publisher = {FH Aachen}, address = {Aachen}, pages = {173 Seiten}, year = {2022}, abstract = {Mobilit{\"a}t stellt oftmals ein Problem in St{\"a}dten dar. Es sind Staus, Abgase, Platzmangel, die sich negativ auf die urbane Lebensqualit{\"a}t auswirken. Dies sind externe Auswirkungen der von Autos dominierten Mobilit{\"a}t. Ziel von „Faces" war es, eine effiziente und vor allem attraktive Alternative zum Automobil zu bieten. Daf{\"u}r denkt das Projekt die Straßenbahn neu. Durch kompaktes Design und die Verwendung autonomer Systeme wird eine h{\"o}here Taktung erm{\"o}glicht. Zudem werden die Bahnen flexibler und k{\"o}nnen den Einsatz am Mobilit{\"a}tsbedarf anpassen. Um den Bed{\"u}rfnissen der Fahrg{\"a}ste gerecht zu werden, l{\"a}sst sich das modulare Interior an die Reisedistanz anpassen. Hier wird ein Mobilit{\"a}tskonzept gezeichnet, das einem mit einem hoffnungsvollen Blick auf das Leben in den St{\"a}dten der Zukunft zur{\"u}ckl{\"a}sst.}, language = {de} } @inproceedings{MorandiButenwegBreisetal.2022, author = {Morandi, Paolo and Butenweg, Christoph and Breis, Khaled and Beyer, Katrin and Magenes, Guido}, title = {Behaviour factor q for the seismic design of URM buildings}, series = {The Third European Conference on Earthquake Engineering and Seismology}, booktitle = {The Third European Conference on Earthquake Engineering and Seismology}, editor = {Arion, Cristian and Scupin, Alexandra and Ţigănescu, Alexandru}, isbn = {978-973-100-533-1}, pages = {1184 -- 1194}, year = {2022}, abstract = {Recent earthquakes showed that low-rise URM buildings following codecompliant seismic design and details behaved in general very well without substantial damages. Although advances in simulation tools make nonlinear calculation methods more readily accessible to designers, linear analyses will still be the standard design method for years to come. The present paper aims to improve the linear seismic design method by providing a proper definition of the q-factor of URM buildings. Values of q-factors are derived for low-rise URM buildings with rigid diaphragms, with reference to modern structural configurations realized in low to moderate seismic areas of Italy and Germany. The behaviour factor components for deformation and energy dissipation capacity and for overstrength due to the redistribution of forces are derived by means of pushover analyses. As a result of the investigations, rationally based values of the behaviour factor q to be used in linear analyses in the range of 2.0 to 3.0 are proposed.}, language = {en} } @inproceedings{ChicoCaminosSchmitzAttietal.2022, author = {Chico Caminos, Ricardo Alexander and Schmitz, Pascal and Atti, Vikrama Naga Babu and Mahdi, Zahra and Teixeira Boura, Cristiano Jos{\´e} and Sattler, Johannes Christoph and Herrmann, Ulf and Hilger, Patrick and Dieckmann, Simon}, title = {Development of a micro heliostat and optical qualification assessment with a 3D laser scanning method}, series = {SOLARPACES 2020}, booktitle = {SOLARPACES 2020}, number = {2445 / 1}, publisher = {AIP conference proceedings / American Institute of Physics}, address = {Melville, NY}, isbn = {978-0-7354-4195-8}, issn = {1551-7616 (online)}, doi = {10.1063/5.0086262}, pages = {8 Seiten}, year = {2022}, abstract = {The Solar-Institut J{\"u}lich (SIJ) and the companies Hilger GmbH and Heliokon GmbH from Germany have developed a small-scale cost-effective heliostat, called "micro heliostat". Micro heliostats can be deployed in small-scale concentrated solar power (CSP) plants to concentrate the sun's radiation for electricity generation, space or domestic water heating or industrial process heat. In contrast to conventional heliostats, the special feature of a micro heliostat is that it consists of dozens of parallel-moving, interconnected, rotatable mirror facets. The mirror facets array is fixed inside a box-shaped module and is protected from weathering and wind forces by a transparent glass cover. The choice of the building materials for the box, tracking mechanism and mirrors is largely dependent on the selected production process and the intended application of the micro heliostat. Special attention was paid to the material of the tracking mechanism as this has a direct influence on the accuracy of the micro heliostat. The choice of materials for the mirror support structure and the tracking mechanism is made in favor of plastic molded parts. A qualification assessment method has been developed by the SIJ in which a 3D laser scanner is used in combination with a coordinate measuring machine (CMM). For the validation of this assessment method, a single mirror facet was scanned and the slope deviation was computed.}, language = {en} } @masterthesis{Scherer2022, type = {Bachelor Thesis}, author = {Scherer, Maike}, title = {Social Integrity for distributed Workforces : ein Design System f{\"u}r soziale Interaktion eines Unternehmens}, publisher = {FH Aachen}, address = {Aachen}, pages = {125 Seiten}, year = {2022}, abstract = {Eine Applikation f{\"u}r die soziale Interaktion zwischen Teams und Arbeitnehmern eines Unternehmens, welche Remote und/oder Hybrid arbeiten. Wissen teilen, Weiterbilden, Wohlf{\"u}hlen In den letzten zwei Jahren kam es auf Grund der Corona-Pandemie, trotz der vielen Kommunikationsm{\"o}glichkeiten, im Privat-, sowie Arbeitsleben zu erheblichen sozialen Einschr{\"a}nkungen. Genau hier setzt die Applikation „Companion" an, um dem Arbeitnehmer das In-Office-Gef{\"u}hl auch Remote {\"u}bersetzen zu k{\"o}nnen. Der Arbeitnehmer kann mit seinen Kollegen sozialisieren, diese besser kennenlernen und wird zus{\"a}tzlich durch Events und Workshops professionell weitergebildet.}, language = {de} } @inproceedings{ZaehlBiewendtWolfetal.2022, author = {Z{\"a}hl, Philipp M. and Biewendt, Marcel and Wolf, Martin R. and Eggert, Mathias}, title = {Requirements for competence developing games in the environment of SE Competence Development}, series = {AKWI-Tagungsband zur 35. AKWI-Jahrestagung}, booktitle = {AKWI-Tagungsband zur 35. AKWI-Jahrestagung}, publisher = {GITO}, address = {Berlin}, isbn = {978-3-95545-409-8}, doi = {10.30844/AKWI_2022_05}, pages = {73 -- 88}, year = {2022}, abstract = {Many of today's factors make software development more and more complex, such as time pressure, new technologies, IT security risks, et cetera. Thus, a good preparation of current as well as future software developers in terms of a good software engineering education becomes progressively important. As current research shows, Competence Developing Games (CDGs) and Serious Games can offer a potential solution. This paper identifies the necessary requirements for CDGs to be conducive in principle, but especially in software engineering (SE) education. For this purpose, the current state of research was summarized in the context of a literature review. Afterwards, some of the identified requirements as well as some additional requirements were evaluated by a survey in terms of subjective relevance.}, language = {en} } @masterthesis{Surowiec2022, type = {Bachelor Thesis}, author = {Surowiec, Julia Andrea}, title = {Das wahre Gewicht des Smartphones : eine informative Erfahrung zu den {\"o}kologischen Auswirkungen}, publisher = {FH Aachen}, address = {Aachen}, pages = {70 Seiten}, year = {2022}, abstract = {Das Smartphone geh{\"o}rt zu den innovativsten Ger{\"a}ten unserer Zeit und befindet sich in einem st{\"a}ndigen Wandel, der nach immer mehr Leistung, gr{\"o}ßeren Displays und besseren Kameras strebt. Mit neuen Modellen, die j{\"a}hrlich auf den Markt kommen und den Milliarden Smartphones, die verkauft werden, entsteht aber nicht nur ein großer Markt voller Angebote, sondern gleichzeitig große Probleme f{\"u}r unsere Umwelt und letztlich auch f{\"u}r uns. Die Smartphone-Industrie schadet massiv unserem {\"O}kosystem. Das Ziel der Arbeit ist die Aufkl{\"a}rung {\"u}ber die Auswirkungen der Smartphone-Industrie. Daf{\"u}r wurden Visualisierung zu Daten und Prozessen gestaltet, die viele Aspekte des Lebenszyklus des Smartphones mit einbeziehen. Die Betrachter:innen sollen so informativ aufgekl{\"a}rt werden, ihren eigenen Konsum zu dem Thema {\"u}berdenken und ein Bewusstsein f{\"u}r ihren Elektronikverbrauch entwickeln.}, language = {de} } @masterthesis{Crott2022, type = {Bachelor Thesis}, author = {Crott, Anne}, title = {Textil- und Industriemuseum (TIM) Augsburg : Entwicklung eines neuen Erscheinungsbildes}, publisher = {FH Aachen}, address = {Aachen}, pages = {131 Seiten}, year = {2022}, abstract = {Die Stadt Augsburg war eine der gr{\"o}ßten Textilst{\"a}dte Europas. Seit 2010 pr{\"a}sentiert das Textil- und Industriemuseum (TIM) eine Vielzahl von Exponaten in der alten Kammgarnspinnerei im ehemaligen Augsburger Textilviertel und ist somit ein wichtiger Bestandteil der bayrischen Museumslandschaft und deutschen Textilgeschichte. Neben seiner besonderen Lage {\"u}berzeugt das TIM vor allem mit einer großen Musterbuchsammlung. Im Fokus des in dieser Arbeit neugestalteten Erscheinungsbildes stehen die verschiedenen Muster, die den textilen Schwerpunkt in den Vordergrund r{\"u}cken und dem Museum damit einen einpr{\"a}gsamen Wiedererkennungswert geben. Mithilfe des neuen Corporate Designs soll das Museum f{\"u}r regionale und {\"u}berregionale Besucher:innen attraktiver gemacht und somit die einmalige geschichtliche Bedeutung vermittelt und erhalten werden.}, language = {de} } @masterthesis{IncemanCremer2022, type = {Bachelor Thesis}, author = {Inceman Cremer, Suzan}, title = {Kouyou : Ort im Raum}, publisher = {FH Aachen}, address = {Aachen}, pages = {85 Seiten}, year = {2022}, abstract = {Selbstliebe, der Moment der Ruhe, sich eine mentale Pause erlauben und von allem bewusst abzuschalten, sind aktuelle Themen unserer Gesellschaft. Die Zeit, in der wir leben, bewegt sich in einer Geschwindigkeit, die alle unsere Sinne {\"u}berlastet und uns nicht mehr erlaubt, selbst zuzuh{\"o}ren oder volle Momente der Ruhe zu erleben. Thema der Bachelorarbeit ist der Entwurf eines Sitzm{\"o}bels, welches inspiriert ist durch die sakralische Architektur. Der Stuhl soll das Gef{\"u}hl von Umformung und Leichtigkeit vermitteln. Er ist aus Eiche gebaut und unterst{\"u}tzt den Menschen in seiner bewussten Sitzhaltung. Die Eiche ist ein Baum, der f{\"u}r Kraft, Durchhalteverm{\"o}gen und Gerechtigkeit steht. Es heißt auch, wenn man eine Eiche sieht, sie umarmen soll, da sie heilende Kr{\"a}fte hat. Hier ist aber die Eiche, die den Menschen symbolisch umarmen soll, wenn man auf ihr sitzt. Und somit spielen Architektur, M{\"o}bel und der Mensch eine spielende Rolle, und zwar ist es die menschliche Haltung im Raum.}, language = {de} } @article{SchneiderSchwabedalBialonski2022, author = {Schneider, Jules and Schwabedal, Justus T. C. and Bialonski, Stephan}, title = {Schlafspindeln - Funktion, Detektion und Nutzung als Biomarker f{\"u}r die psychiatrische Diagnostik}, series = {Der Nervenarzt}, journal = {Der Nervenarzt}, publisher = {Springer}, address = {Berlin, Heidelberg}, issn = {1433-0407}, doi = {10.1007/s00115-022-01340-z}, pages = {1 -- 8}, year = {2022}, abstract = {Hintergrund: Die Schlafspindel ist ein Graphoelement des Elektroenzephalogramms (EEG), das im Leicht- und Tiefschlaf beobachtet werden kann. Ver{\"a}nderungen der Spindelaktivit{\"a}t wurden f{\"u}r verschiedene psychiatrische Erkrankungen beschrieben. Schlafspindeln zeigen aufgrund ihrer relativ konstanten Eigenschaften Potenzial als Biomarker in der psychiatrischen Diagnostik. Methode: Dieser Beitrag liefert einen {\"U}berblick {\"u}ber den Stand der Wissenschaft zu Eigenschaften und Funktionen der Schlafspindeln sowie {\"u}ber beschriebene Ver{\"a}nderungen der Spindelaktivit{\"a}t bei psychiatrischen Erkrankungen. Verschiedene methodische Ans{\"a}tze und Ausblicke zur Spindeldetektion werden hinsichtlich deren Anwendungspotenzial in der psychiatrischen Diagnostik erl{\"a}utert. Ergebnisse und Schlussfolgerung: W{\"a}hrend Ver{\"a}nderungen der Spindelaktivit{\"a}t bei psychiatrischen Erkrankungen beschrieben wurden, ist deren exaktes Potenzial f{\"u}r die psychiatrische Diagnostik noch nicht ausreichend erforscht. Diesbez{\"u}glicher Erkenntnisgewinn wird in der Forschung gegenw{\"a}rtig durch ressourcenintensive und fehleranf{\"a}llige Methoden zur manuellen oder automatisierten Spindeldetektion ausgebremst. Neuere Detektionsans{\"a}tze, die auf Deep-Learning-Verfahren basieren, k{\"o}nnten die Schwierigkeiten bisheriger Detektionsmethoden {\"u}berwinden und damit neue M{\"o}glichkeiten f{\"u}r die praktisch}, language = {de} } @article{LindnerBurgerRutledgeetal.2022, author = {Lindner, Simon and Burger, Ren{\´e} and Rutledge, Douglas N. and Do, Xuan Tung and Rumpf, Jessica and Diehl, Bernd W. K. and Schulze, Margit and Monakhova, Yulia}, title = {Is the calibration transfer of multivariate calibration models between high- and low-field NMR instruments possible? A case study of lignin molecular weight}, series = {Analytical chemistry}, volume = {94}, journal = {Analytical chemistry}, number = {9}, publisher = {ACS Publications}, address = {Washington, DC}, isbn = {1520-6882}, doi = {10.1021/acs.analchem.1c05125}, pages = {3997 -- 4004}, year = {2022}, abstract = {Although several successful applications of benchtop nuclear magnetic resonance (NMR) spectroscopy in quantitative mixture analysis exist, the possibility of calibration transfer remains mostly unexplored, especially between high- and low-field NMR. This study investigates for the first time the calibration transfer of partial least squares regressions [weight average molecular weight (Mw) of lignin] between high-field (600 MHz) NMR and benchtop NMR devices (43 and 60 MHz). For the transfer, piecewise direct standardization, calibration transfer based on canonical correlation analysis, and transfer via the extreme learning machine auto-encoder method are employed. Despite the immense resolution difference between high-field and low-field NMR instruments, the results demonstrate that the calibration transfer from high- to low-field is feasible in the case of a physical property, namely, the molecular weight, achieving validation errors close to the original calibration (down to only 1.2 times higher root mean square errors). These results introduce new perspectives for applications of benchtop NMR, in which existing calibrations from expensive high-field instruments can be transferred to cheaper benchtop instruments to economize.}, language = {en} } @book{KurzSchwer2022, author = {Kurz, Melanie and Schwer, Thilo}, title = {Raster, Regeln, Ratio : Systematiken und Normungen im Design des 20. Jahrhunderts / herausgegeben von Melanie Kurz und Thilo Schwer}, series = {Schriften / Gesellschaft f{\"u}r Designgeschichte}, journal = {Schriften / Gesellschaft f{\"u}r Designgeschichte}, publisher = {avedition}, address = {Stuttgart}, isbn = {978-3-89986-380-2}, pages = {155 Seiten}, year = {2022}, language = {de} } @inproceedings{Gaigall2022, author = {Gaigall, Daniel}, title = {On Consistent Hypothesis Testing In General Hilbert Spaces}, series = {Proceedings of the 4th International Conference on Statistics: Theory and Applications (ICSTA'22)}, booktitle = {Proceedings of the 4th International Conference on Statistics: Theory and Applications (ICSTA'22)}, publisher = {Avestia Publishing}, address = {Orl{\´e}ans, Kanada}, doi = {10.11159/icsta22.157}, pages = {Paper No. 157}, year = {2022}, abstract = {Inference on the basis of high-dimensional and functional data are two topics which are discussed frequently in the current statistical literature. A possibility to include both topics in a single approach is working on a very general space for the underlying observations, such as a separable Hilbert space. We propose a general method for consistently hypothesis testing on the basis of random variables with values in separable Hilbert spaces. We avoid concerns with the curse of dimensionality due to a projection idea. We apply well-known test statistics from nonparametric inference to the projected data and integrate over all projections from a specific set and with respect to suitable probability measures. In contrast to classical methods, which are applicable for real-valued random variables or random vectors of dimensions lower than the sample size, the tests can be applied to random vectors of dimensions larger than the sample size or even to functional and high-dimensional data. In general, resampling procedures such as bootstrap or permutation are suitable to determine critical values. The idea can be extended to the case of incomplete observations. Moreover, we develop an efficient algorithm for implementing the method. Examples are given for testing goodness-of-fit in a one-sample situation in [1] or for testing marginal homogeneity on the basis of a paired sample in [2]. Here, the test statistics in use can be seen as generalizations of the well-known Cram{\´e}rvon-Mises test statistics in the one-sample and two-samples case. The treatment of other testing problems is possible as well. By using the theory of U-statistics, for instance, asymptotic null distributions of the test statistics are obtained as the sample size tends to infinity. Standard continuity assumptions ensure the asymptotic exactness of the tests under the null hypothesis and that the tests detect any alternative in the limit. Simulation studies demonstrate size and power of the tests in the finite sample case, confirm the theoretical findings, and are used for the comparison with concurring procedures. A possible application of the general approach is inference for stock market returns, also in high data frequencies. In the field of empirical finance, statistical inference of stock market prices usually takes place on the basis of related log-returns as data. In the classical models for stock prices, i.e., the exponential L{\´e}vy model, Black-Scholes model, and Merton model, properties such as independence and stationarity of the increments ensure an independent and identically structure of the data. Specific trends during certain periods of the stock price processes can cause complications in this regard. In fact, our approach can compensate those effects by the treatment of the log-returns as random vectors or even as functional data.}, language = {en} } @masterthesis{DeckersCatorze2022, type = {Bachelor Thesis}, author = {Deckers Catorze, Yoko Joana}, title = {Self Made Man}, publisher = {FH Aachen}, address = {Aachen}, pages = {44 Seiten}, year = {2022}, abstract = {Selbst in unserer heutigen, modernen Gesellschaft geh{\"o}rt das Thema ‚Transgender' noch f{\"u}r einige Menschen zu den Tabuthemen. Transgender sind Menschen, bei denen die gef{\"u}hlte, geschlechtliche Identit{\"a}t nicht mit dem bei der Geburt zugewiesenem, k{\"o}rperlichem Geschlecht {\"u}bereinstimmt. Dabei definiert sich die Geschlechterrolle nicht nur durch die Sexualit{\"a}t, sondern durch die ganze Pers{\"o}nlichkeit eines Menschen. Trans* Personen wollen in erster Linie von der Gesellschaft als Menschen akzeptiert werden. Eine erfolgte oder angestrebte Geschlechtsumwandlung ist damit nicht zwingend verbunden. Das Projekt soll zeigen, dass Trans*Personen Menschen sind wie jeder andere auch. Es geht nicht um die Sexualit{\"a}t sondern um den Menschen und seine Geschichte. Mithilfe des Bildbandes soll man die Person "Jay Moch" ohne Vorurteile gegen{\"u}ber dem Thema "Transgeschlechtlichkeit" kennenlernen. Am Anfang lernt man einen jungen Mann kennen, der gerne ins Fitnessstudio geht und Shisha raucht. Je tiefer man das Buch durchbl{\"a}ttert und hinschaut, desto mehr erf{\"a}hrt man {\"u}ber seine inspirierende Lebensgeschichte und die Umwandlung zum Mann.}, language = {de} } @masterthesis{Hambloch2022, type = {Bachelor Thesis}, author = {Hambloch, Antonia}, title = {Wie ein Stier im Porzellanladen}, publisher = {FH Aachen}, address = {Aachen}, pages = {35 Seiten}, year = {2022}, abstract = {Menschliche Kommunikation ist gepr{\"a}gt von Sprichw{\"o}rtern und Redewendungen. Von Generation zu Generation weitergegeben, spiegeln sie Lebenserfahrungen, Traditionen und Moralvorstellungen wider, die sich im Laufe der Zeit im allgemeinen Sprachgebrauch etabliert haben. Redensarten werden von Menschen auf der ganzen Welt verwendet. H{\"a}ufig stammen diese bildhaften Vergleiche aus dem Tierreich, was auf die lange gemeinsame Vergangenheit von Tier und Mensch zur{\"u}ckzuf{\"u}hren ist. Bis heute spielen Tiere eine besondere Rolle im Alltag vieler Menschen. Die Ausdr{\"u}cke, die in dem Sachbuch „Wie ein Stier im Porzellanladen" illustrativ und textlich veranschaulicht werden, sind Redensarten {\"u}ber Tiere aus verschiedenen Zeiten, Sprachen und L{\"a}ndern. Manche werden Lesenden bekannt vorkommen, andere {\"o}ffnen den Blick f{\"u}r neue Ausdrucksweisen. Sie am{\"u}sieren in ihrer faszinierenden Vielfalt durch erfrischenden Humor. Das Buch offenbart auf unterhaltsame Weise, wie {\"a}hnlich die Gedanken der Menschen, die sich in spannenden Analogien zwischen Sprachen und Kulturen widerspiegeln, bei n{\"a}herer Betrachtung eigentlich sind.}, language = {de} } @masterthesis{Bleeck2022, type = {Bachelor Thesis}, author = {Bleeck, Sophie}, title = {Trabic : zukunftsorientiertes Liefersystem f{\"u}r den urbanen Raum - Optimierte Paketlieferung auf der letzten Meile}, publisher = {FH Aachen}, address = {Aachen}, pages = {187 Seiten}, year = {2022}, abstract = {Der Onlinehandel boomt und die Anzahl an Paketsendungen w{\"a}chst stetig. Aktuelle Zustellmethoden sind jedoch nicht nachhaltig und st{\"o}ren den ohnehin schon {\"u}berlasteten innerst{\"a}dtischen Verkehr. Hier m{\"o}chte „TRABIC" Abhilfe schaffen. „TRABIC" ist ein nachhaltiges und zukunftsf{\"a}higes Liefersystem f{\"u}r den urbanen Raum. Die Kombination von innerst{\"a}dtischen Microhubs mit einem neuen Lieferfahrzeug schafft die Basis des Systems. Die den Lieferprozess begleitende KI erm{\"o}glicht einen effizient aufeinander abgestimmten Lieferprozess. Das Lieferfahrzeug bildet das Herz des Konzeptes und wurde auf der Basis eines Lastenrads entwickelt. Um eine effiziente Zustellung zu gew{\"a}hrleisten, wurde es an die Bed{\"u}rfnisse des Lieferprozesses und der Paketzusteller/innen angepasst. Damit erm{\"o}glicht „TRABIC" die Nutzung alternativer Verkehrswege, ist emissionsfrei und bietet somit eine attraktive Alternative zu verrufenen Zustellmethoden.}, language = {de} } @masterthesis{Plura2022, type = {Bachelor Thesis}, author = {Plura, Annika}, title = {Health Literacy : Konzeption und Entwurf eines digitalen Informationsangebots zum Thema Gesundheit}, publisher = {FH Aachen}, address = {Aachen}, pages = {63 Seiten}, year = {2022}, abstract = {Nicht zuletzt die Corona-Pandemie hat gezeigt: Gesundheit geht alle Menschen etwas an. Vom Begriff „Health Literacy" haben viele aber noch nie geh{\"o}rt. Damit gemeint ist die menschliche Gesundheitskompetenz, also die F{\"a}higkeit, mit gesundheitsrelevanten Informationen richtig umzugehen und daraus selbstbestimmte Entscheidungen in Gesundheitsfragen ableiten zu k{\"o}nnen. In dieser Arbeit wurden dazu wichtige Aspekte aus der Studie HLS-GER 1 interaktiv und erlebbar aufbereitet. Durch das ausgew{\"a}hlte Informationsdesign wird die Thematik zug{\"a}nglich gemacht und aufgezeigt, welche gravierenden Auswirkungen schlecht ausgebildete Health Literacy auf die Selbstbestimmtheit und Chancengleichheit der Menschen hat. "Health Literacy" legt den Finger in die Wunde und zeigt, dass vor allem im Bildungskontext noch sehr viel Handlungsbedarf ist.}, language = {de} } @article{VahidpourAlghazaliAkcaetal.2022, author = {Vahidpour, Farnoosh and Alghazali, Yousef H. M. and Akca, Sevilay and Hommes, Gregor and Sch{\"o}ning, Michael Josef}, title = {An Enzyme-Based Interdigitated Electrode-Type Biosensor for Detecting Low Concentrations of H₂O₂ Vapor/Aerosol}, series = {Chemosensors}, volume = {10}, journal = {Chemosensors}, number = {6}, publisher = {MDPI}, address = {Basel}, issn = {2227-9040}, doi = {10.3390/chemosensors10060202}, pages = {Arikel 202}, year = {2022}, abstract = {This work introduces a novel method for the detection of H₂O₂ vapor/aerosol of low concentrations, which is mainly applied in the sterilization of equipment in medical industry. Interdigitated electrode (IDE) structures have been fabricated by means of microfabrication techniques. A differential setup of IDEs was prepared, containing an active sensor element (active IDE) and a passive sensor element (passive IDE), where the former was immobilized with an enzymatic membrane of horseradish peroxidase that is selective towards H₂O₂. Changes in the IDEs' capacitance values (active sensor element versus passive sensor element) under H₂O₂ vapor/aerosol atmosphere proved the detection in the concentration range up to 630 ppm with a fast response time (<60 s). The influence of relative humidity was also tested with regard to the sensor signal, showing no cross-sensitivity. The repeatability assessment of the IDE biosensors confirmed their stable capacitive signal in eight subsequent cycles of exposure to H₂O₂ vapor/aerosol. Room-temperature detection of H₂O₂ vapor/aerosol with such miniaturized biosensors will allow a future three-dimensional, flexible mapping of aseptic chambers and help to evaluate sterilization assurance in medical industry.}, language = {en} } @masterthesis{Liske2022, type = {Bachelor Thesis}, author = {Liske, Lara}, title = {Nach der Karte : Mappings migrantischer Narrative}, publisher = {FH Aachen}, address = {Aachen}, pages = {67 Seiten}, year = {2022}, abstract = {Durch demographischen Wandel wird der Kontrast zwischen der starr {\"u}ber Grenzziehung definierten Kartographie und der tats{\"a}chlichen Bewegung von Menschen immer st{\"a}rker. In dieser Arbeit wird der vermeintlichen Neutralit{\"a}t einer gew{\"o}hnlichen Karte auf den Zahn gef{\"u}hlt. Denn statt sich auf die geografischen Regeln zu beschr{\"a}nken, versteht sie den Raum als ein komplexes Netzwerk sozialer Beziehungszusammenh{\"a}nge. Sie orientiert sich daf{\"u}r an migrantischen Lebensgeschichten, die zahlreiche Verbindungen zwischen unterschiedliche Orte spannen. Die Dreidimensionalit{\"a}t dieser Konstruktion {\"o}ffnet dazu den Blick f{\"u}r die vielen Dimensionen dieser geografischen Bewegung. Durch den Perspektivwechsel wird der Ansatz hinterfragt, unter dem Kartographie bis jetzt betrachtet wurde. Das Raumkonzept wird weiter-gedacht - {\"u}ber Grenzen hinweg.}, language = {de} } @masterthesis{Schmitz2022, type = {Bachelor Thesis}, author = {Schmitz, Tim}, title = {Technikmuseum Hugo Junkers : Entwicklung und Konzeption eines neuen Erscheinungsbildes}, publisher = {FH Aachen}, address = {Aachen}, pages = {80 Seiten}, year = {2022}, abstract = {Hugo Junkers ist Pionier der fr{\"u}hen nationalen und internationalen Luftfahrt. Seit 2002 sticht das Technikmuseum Hugo Junkers inhaltlich hervor mit einer F{\"u}lle einzigartiger Ausstellungsst{\"u}cke wie restaurierte Flugzeuge und originalgetreue Nachbauten. Geleitet wird das Privatmuseum von ehrenamtlichen Mitgliedern, die teils selbst vom Fach sind und mit ihrer Arbeit im Museum f{\"u}r stetigen Wandel sorgen. Doch leider ist von dieser Qualit{\"a}t im jetzigem Corporate Design noch nichts wiederzuerkennen. Die Arbeit nimmt sich dieser an und greift das f{\"u}r die Junkers Flugzeuge typische Wellblech auf. So wird ein signifikantes Unterscheidungsmerkmal zu anderen Technikmuseen dieser Art geschaffen. Durch die Kombination eines streng geordneten Liniensystems und einer sehr freien Anordnung der Bilder wird ein spannendes visuelles Auftreten geschaffen. Damit wird das Museum attraktiver f{\"u}r Besucher:Innen gestaltet und somit endlich der hochwertigen Arbeit gerecht, die die Mitglieder des Technikmuseums leisten.}, language = {de} } @masterthesis{Wick2022, type = {Bachelor Thesis}, author = {Wick, Dorian}, title = {bulk : Konzeption und Gestaltung einer mobilen Anwendung eines nachhaltigen Unverpackt-Lieferservice}, publisher = {FH Aachen}, address = {Aachen}, pages = {171 Seiten}, year = {2022}, abstract = {Die Welt wird wortw{\"o}rtlich von Plastik {\"u}berschwemmt- und trotzdem ist kein Ende des trivialen Verpackungsmaterials in Sicht. Die, die sich den Konsequenzen ihres Konsumverhaltens bewusst sind, haben immer noch keinen fl{\"a}chendeckenden Zugang zu Unverpacktl{\"a}den und es mangelt schlicht an praktischen Alternativen. Hier kn{\"u}pft die App „bulk" an und schl{\"a}gt ausschließlich unverpackte Lebensmittel vor - bequem bis zur Haust{\"u}r geliefert. Das Angebot ist qualitativ hochwertig und meist regional. F{\"u}r ein positives Kauferlebnis veranschaulicht „bulk", wie viel Plastik mit den Produkten im Vergleich zu einem konventionellen Wocheneinkauf eingespart werden kann. Das gibt Nutzer:Innen eine Grundlage, ihre Entscheidungen kritisch zu hinterfragen und schult den Blick f{\"u}r den Impact sich summierender Kleinigkeiten.}, language = {de} } @masterthesis{Schmitz2022, type = {Bachelor Thesis}, author = {Schmitz, Moritz}, title = {Kochen inklusiver gestalten. : Bed{\"u}rfnisorientiertes K{\"u}chensystem f{\"u}r Menschen mit Sehbeeintr{\"a}chtigungen}, publisher = {FH Aachen}, address = {Aachen}, pages = {153 Seiten}, year = {2022}, abstract = {Es ist nachweislich ges{\"u}nder und h{\"a}ufig g{\"u}nstiger selber zu kochen und es gibt dem Menschen mehr Kontrolle {\"u}ber seine Ern{\"a}hrung. Bis dato wird keine K{\"u}chenmaschine angeboten, die von blinden Menschen bedient werden kann, obwohl gerade solche Produkte den Alltag dieser Gruppe enorm vereinfachen k{\"o}nnten. „Clu." ist ein modulares K{\"u}chensystem, welches von einer App unterst{\"u}tzt wird. Die Basis besteht aus einer K{\"u}chenmaschine, die {\"u}ber Sprache und haptische Bedienelemente gesteuert wird. Durch die Anwendung des Mehr-Sinne-Prinzip, der Simplifizierung von Funktionen und der Einbindung von Smart Home Komponenten werden nicht nur Menschen mit Sehbeeintr{\"a}chtigungen profitieren. Beispielsweise funktioniert das Kochen nach Rezept nun {\"a}hnlich wie das H{\"o}ren eines H{\"o}rbuches und die User k{\"o}nnen sich dem in ihrem favorisierten Tempo annehmen. „Clu." ist ein Ansatz f{\"u}r eine neue Kategorie von Produkten, die zeigen, wie attraktiv inklusivere Produktl{\"o}sungen aussehen k{\"o}nnen.}, language = {de} } @masterthesis{Kocaoglu2022, type = {Bachelor Thesis}, author = {Kocaoglu, Berna}, title = {System zur Unterst{\"u}tzung von Blinden im Alltag}, publisher = {FH Aachen}, address = {Aachen}, pages = {45 Seiten}, year = {2022}, abstract = {Unterhaltungsgegenst{\"a}nde und ihre Add-Ons stellen f{\"u}r viele Menschen ein wichtiger Bestandteil eines ausgewogenen Lebens dar und sind somit nicht mehr aus klassischen Haushalten wegzudenken. Doch nicht jeder Menschen hat {\"u}berhaupt Zugang zu ihnen, weil die Systeme meistens auf Durchschnittsb{\"u}rger:Innen abgestimmt sind. Davon betroffen sind beispielsweise Menschen mit Blindheit und Seheinschr{\"a}nkung. Um das Angebot individueller zu gestalten, wurde diesem Projekt ein Home-Entertainment-System entwickelt, das eben genau auf die Bed{\"u}rfnisse dieser Gruppe zugeschnitten ist. F{\"u}r die bedienungsfreundliche Gestaltung wurde im gesamten Prozess besonders viel Wert auf die konkrete Lebensrealit{\"a}t von Blinden und Menschen mit Seheinschr{\"a}nkungen gelegt. Hier sollen m{\"o}gliche Einschr{\"a}nkungen {\"u}berwunden werden und sich m{\"o}glichst den tats{\"a}chlichen Anforderungen in der Praxis anpassen. Dazu musste zun{\"a}chst ein umfassendes Verst{\"a}ndnis des Krankheitsbildes geschult werden. Außerdem wurde ein Blick in den Alltag dieser Menschen geworfen. Welche Home-Entertainmentger{\"a}te finden bereits im Wohnzimmer Platz und welche Komplikationen gibt es mit ihnen? Die breite Palette an Produkten gibt einen Eindruck davon, welche Funktionen ersetzt und welche Systeme gegebenenfalls miteinander verkn{\"u}pft werden k{\"o}nnen. Auf der Basis umfassender Recherche ist eine Fernbedienung entstanden, die sowohl per Sprachsteuerung als auch {\"u}ber physische Steuerung steuerbar ist. Zahlreiche taktile Elemente geben Orientierung bei der Nutzung und gew{\"a}hrleisten ein reibungsloses und handliches Nutzungserlebnis. Die Arbeit {\"o}ffnet den Blick f{\"u}r andere Lebenswelten und pl{\"a}diert f{\"u}r den Abbau von Barrieren f{\"u}r ein selbstbestimmteres Leben.}, language = {de} } @masterthesis{Traut2022, type = {Bachelor Thesis}, author = {Traut, Eva Melina}, title = {Vom {\"O}ko-Dino zur Lifestyle-Marke : Rebranding f{\"u}r die Bio-Lebensmittelmarke Alnatura}, publisher = {FH Aachen}, address = {Aachen}, pages = {49 Seiten}, year = {2022}, abstract = {Das Thema „Bio" ist auf dem Markt l{\"a}ngst zu einem Mainstream geworden und vor allem bei j{\"u}ngeren Zielgruppen sehr gefragt. Umso wichtiger ist es f{\"u}r Bio-Marken wie ALNATURA, sich zu definieren, um neben innovativen, nachhaltigen Start-up-Marken noch aufzufallen. Aktuell ist ALNATURA vorwiegend aufgrund der hochwertigen Produkte sowie einer transparenten Kommunikation bekannt. Jedoch fehlt es den Produkten an einheitlichem Design mit Wiedererkennungswert. Diese Arbeit zeigt einen Ansatz f{\"u}r ein neues, zeitgem{\"a}ßes Gestaltungskonzept. Im Zuge dessen wurde das Unternehmenslogo modifiziert sowie Farben, Schrift und Gestaltungsraster neu definiert. Um das neue Image der Marke bekannt zu machen, wurde zudem eine Plakatkampagne entwickelt. Das Projekt zeigt, wie sich eine Bio-Marke weg vom {\"O}ko-Image und hin zu einer modernen Lifestyle-Marke mit Relevanz entwickeln kann.}, language = {de} } @misc{Bergerhausen2022, type = {Master Thesis}, author = {Bergerhausen, Florian}, title = {Die Chance der fiktionalen Literatur : Literatur der Fiktion als Anstoß f{\"u}r Information und Diskurs}, publisher = {FH Aachen}, address = {Aachen}, year = {2022}, abstract = {Der informative Charakter fiktionaler Texte sollte nicht untersch{\"a}tzt werden. Mit dem Projekt wird durch „Buddenbrooks" von Thomas Mann gezeigt, wie relevante und redebed{\"u}rftige Themen in der Literatur angesprochen werden. Daf{\"u}r gibt es zus{\"a}tzliche Text- und Info-Impulse als erg{\"a}nzendes Buch zum Roman. Neben diesen Vertiefungsb{\"u}chern gibt es eine Inszenierung des Buches mit Beispielen aus den B{\"u}chern. Die Ausstellung kann Teil eines Messestandes sein oder f{\"u}r sich existieren und bietet einen ersten Kontakt mit der Idee des Projektes und mit den B{\"u}chern selbst. Zus{\"a}tzliches Interesse an der Arbeit wird durch Social Media Posts generiert, die den wichtigen Part des Austauschs und der Diskussion f{\"o}rdern, wozu das Projekt auch anregen m{\"o}chte. „Die Chance der fiktionalen Literatur" regt Leser:innen an, fiktionale Literatur anders zu betrachten und einen gr{\"o}ßeren Nutzen aus der Fiktion zu ziehen.}, language = {de} } @masterthesis{Meesters2022, type = {Bachelor Thesis}, author = {Meesters, Elena}, title = {Gestaltung eines h{\"a}uslichen Telemonitoringsystems zur Prognose kardialer Dekompensation}, publisher = {FH Aachen}, address = {Aachen}, pages = {113 Seiten}, year = {2022}, abstract = {Herzinsuffizienz ist eine der h{\"a}ufigsten Herzerkrankungen in Deutschland. Sie ist fortschreitend und nicht heilbar. Der Krankheitsverlauf ist gepr{\"a}gt von pl{\"o}tzlichen, z.T. lebensbedrohlichen Verschlechterungen und Krankenhauseinweisungen, nach denen die Leistung des Herzen vermindert bleibt. Diese Dekompensationen lassen sich bisher im heimischen Umfeld nicht durch Messwerte vorhersehen. Dieses Ger{\"a}t bestimmt die Fl{\"u}ssigkeitsansammlungen in der Lunge, die ein mittelfristiges Symptom einer Dekompensation sind. Außerdem misst es {\"u}ber einen Hautsensor die im Schweiß enthaltene Menge eines Proteins, das bei {\"U}berdehnung des Herzmuskels vermehrt im Blutplasma zu finden ist. So k{\"o}nnen Dekompensationen bis zu zwei Wochen vor einem akuten Ereignis detektiert und behandelt werden. Außerdem gibt es tagesformabh{\"a}ngige Tipps f{\"u}r die Alltagsgestaltung mit der Erkrankung.}, language = {de} } @masterthesis{Toma2022, type = {Bachelor Thesis}, author = {Toma, Paul}, title = {Scriptum : Geochronologische Darstellung der Schriftentstehung vom 33. Jh. v. Chr. bis heute}, publisher = {FH Aachen}, address = {Aachen}, pages = {159 Seiten}, year = {2022}, abstract = {Scriptum ist ein Interface mit Installationscharakter, welches die geschichtliche Entstehung von Schriftsystemen aus einer geochronologischen Perspektive darstellt. Die Installation wurde haupts{\"a}chlich f{\"u}r Museumsausstellungen konzipiert und besteht aus einer Wandprojektion, die durch iPads im Raum von mehreren Nutzern gleichzeitig gesteuert werden kann. Auf der Projektion sind alle 145 von Noto Sans unterst{\"u}tzten Schriftsysteme zu finden, die nach ihrer {\"o}rtlichen Entstehung auf einer Weltkarte platziert wurden. Die Arbeit beruht auf dem wissenschaftlichen Datensatz aus dem Projekt „The World's Writing Systems" aufrufbar unter www.worldswritingsystems.org. Neben dem Informierungszweck dient die Installation auch als ein Ausrufezeichen f{\"u}r die Idee, dass Schrift ein wichtiger Aspekt unseres Kulturerbes ist und als ein Spiegel f{\"u}r die Evolution der Menschheit betrachtet werden kann.}, language = {de} } @masterthesis{Wick2022, type = {Bachelor Thesis}, author = {Wick, Dorian}, title = {Konzeption und Gestaltung einer mobilen Anwendung eines nachhaltigen Unverpackt-Lieferservice}, publisher = {FH Aachen}, address = {171 Seiten}, year = {2022}, abstract = {Die Welt wird wortw{\"o}rtlich von Plastik {\"u}berschwemmt - und trotzdem ist kein Ende des trivialen Verpackungsmaterials in Sicht. Die, die sich den Konsequenzen ihres Konsumverhaltens bewusst sind, haben immer noch keinen fl{\"a}chendeckenden Zugang zu Unverpacktl{\"a}den und es mangelt schlicht an praktischen Alternativen. Hier kn{\"u}pft die App „bulk" an und schl{\"a}gt ausschließlich unverpackte Lebensmittel vor - bequem bis zur Haust{\"u}r geliefert. Das Angebot ist qualitativ hochwertig und meist regional. F{\"u}r ein positives Kauferlebnis veranschaulicht „bulk", wie viel Plastik mit den Produkten im Vergleich zu einem konventionellen Wocheneinkauf eingespart werden kann. Das gibt Nutzer:Innen eine Grundlage, ihre Entscheidungen kritisch zu hinterfragen und schult den Blick f{\"u}r den Impact sich summierender Kleinigkeiten.}, language = {de} } @masterthesis{Hemmers2022, type = {Bachelor Thesis}, author = {Hemmers, Marie Jane}, title = {Modularit{\"a}t im Caravaning : Entwurf eines modularen Interior-Systems f{\"u}r die Anwendung in mobilen Reisew{\"a}gen.}, publisher = {FH Aachen}, address = {Aachen}, pages = {187 Seiten}, year = {2022}, abstract = {Die Arbeit „Modularit{\"a}t im Caravaning" befasst sich mit der konzeptionellen und gestalterischen Ausarbeitung eines Interior-Systems nach dem Vorbild modularer Bauweise f{\"u}r die Anwendung in mobilen Reisew{\"a}gen. Das Projekt steht im Kontext einer Diskrepanz zwischen den unflexiblen Ausstattungen g{\"a}ngiger Reisew{\"a}gen und den Nutzeranforderungen nach einer anpassungsf{\"a}higen Einrichtung. Die Lebenszeit eines Wohnwagens liegt im Durchschnitt zwischen 25-30 Jahren. In dieser Zeitspanne durchlaufen die Nutzer unterschiedliche Lebensphasen, aus denen sich neue Nutzungsszenarien ergeben k{\"o}nnen. Die festverklebten und verschraubten Einrichtungen bestehender Caravankonzepte stehen einer flexiblen Umgestaltung des Innenraumes nach den Bed{\"u}rfnissen der Nutzer jedoch entgegen und erschweren dar{\"u}ber hinaus Reparaturen und das Recycling am Produktlebensende. Die Covid-19 Pandemie hat den Caravan-Trend weiterhin verst{\"a}rkt. Die Digitalisierung und eine ortsungebundene Arbeit schafft neue Nutzungsszenarien in dem der Caravan als Office-Camper zum Einsatz kommt. Das Interior-system „CAMO" erm{\"o}glicht es Nutzern Ver{\"a}nderungen des Innenraumes vorzunehmen, indem Modulk{\"o}rper gem{\"a}ß einer Rasterung in dem Innenraum an Boden- und Wandschienen flexibel angeordnet und befestigt werden k{\"o}nnen. Die Nutzer gewinnen mehr Autonomie in der Mitgestaltung des Umfeldes, indem er das Interior nach seinen Bed{\"u}rfnissen anpassen kann. Die trennbaren Modulbauk{\"o}rper aus recycelf{\"a}higen Materialien erm{\"o}glichen {\"u}berdies eine verbesserte Reparierbarkeit und erleichtern die Zur{\"u}ckf{\"u}hrung in den Stoffkreislauf am Produktlebensende. Das modulare Interior-System „CAMO" beantwortet das Bed{\"u}rfnis nach einer flexiblen Inneneinrichtung, die sich an die wandelnden Nutzungsszenarien anpasst.}, language = {de} }