@techreport{Kleimaier2021, author = {Kleimaier, Alexander}, title = {Modellierung der PMSM im uvw-System}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-2669}, pages = {27}, year = {2021}, abstract = {Zur Auslegung von elektrischen Antrieben, zur Reglerentwicklung und zum Test von Verfahren zur Pulsmustererzeugung ben{\"o}tigt man Simulationsmodelle elektrischer Maschinen. Im vorliegenden Bericht werden die zur Modellbildung eines frei parametrierbaren PMSM-Maschinenmodells ausgef{\"u}hrten Rechnungen und Vorarbeiten sowie die Umsetzung in ein Matlab/Simulinkmodell beschrieben. Besonderheit ist, dass die Modellierung nicht als Grundwellenmodell im dq-System erfolgt, sondern ohne Raumzeigertransformation direkt im uvw-System. Dadurch entfallen entsprechende Einschr{\"a}nkungen, und die Verl{\"a}ufe der EMK sowie der Eigen- und Koppelinduktivit{\"a}ten sind frei definierbar. Andererseits wird dadurch die Modellbildung erheblich komplexer, und es sind umfangreiche Vor{\"u}berlegungen zur Bestimmung des Synchron- und Reaktionsmomentes erforderlich. Das abschließend vorgestellte Simulinkmodell erlaubt die Simulation eines kompletten Antriebes inklusive Vektorregelung, Pulsmustererzeugung, Wechselrichter sowie Maschine und Sensorik.}, subject = {Dauermagneterregte Synchronmaschine}, language = {de} } @misc{Leiner2022, type = {Master Thesis}, author = {Leiner, David Fabian}, title = {Developing a framework for the implementation and utilization of agile methods in the project management of small and medium sized enterprises}, doi = {10.57688/345}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-3454}, school = {Hochschule f{\"u}r Angewandte Wissenschaften Landshut}, pages = {245}, year = {2022}, abstract = {Due to their qualities to better deal with the unprecedented characteristics of today's VUCA world than conservative project management methods, agile methods have seen an immense upheavel in the industry in recent years - agile methods and the topic of agility in general seem to be inevitable in this context. However, a systematic literature search carried out for the purpose of finding a topic for this master's thesis only confirms this picture to a limited extent: While there is a vast amount of literature on agile methods in project management in general, there is a downright research gap in the more specific field of agile methods in the project management of small and medium sized enterprises (short: SMEs). This insight was taken as an opportunity to bring some light into the dark-ness and to try to fill the existing research gap by attempting to develop a framework for the implementation and utilization of agile methods in the project management of SMEs. In order to create a knowledge base, the theoretical foundation was formed at the very beginning, with a view to both agile project management and SMEs. Subsequently, five specific research questions were defined and a suitable research design was created. In a first round of interviews, twelve problem-centred interviews were conducted with inter-view participants who had experience in the context of agile methods in the project man-agement of SMEs and could report on it. The initial framework based on the resulting findings was then evaluated by five experts in a second round of interviews. After the evaluation of the expert consultation, the initial framework was then modified on the basis of the experts' responses and the final framework was developed. The final framework provides information on what is happening when an agile method is being implemented and later used in the project management of a SME. Therewith, it helps SMEs who are about to introduce an agile method themselves in that they can derive important infor-mation, reference points and recommendations for action from it. For academia, the framework gives rise to further research topics that should be addressed.}, subject = {Projektmanagement}, language = {en} } @misc{Veitl2023, type = {Master Thesis}, author = {Veitl, Jakob}, title = {Development of a laminable, cellulose-based Separator for Lithium-Ion Batteries}, doi = {10.57688/347}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-3478}, school = {Hochschule f{\"u}r Angewandte Wissenschaften Landshut}, pages = {81}, year = {2023}, abstract = {Cellulose is a promising material for lithium-ion battery separator as it is sustainable, affordable, has excellent electrolyte wettability and is well applicable in lamination-based cell production. Lamination can accelerate the time-consuming stacking step in pouch cell assembly, reduce scrap rate and enhance battery performance, but relies on thermoplastic material on electrode/separator interfaces. In this work, different surface modification layers were applied to a cellulose separator via electrospinning technique and compared with regard to their applicability for lamination-based cell production. Processes have been developed to apply A) homogeneous fibers consisting of 4 different binder polymer types and b) layers of a fluorothermoplastic polymer (THV) with different morphologies. All layers were applied at the same low areal loading of 0.4 𝑔/𝑚2. All investigated polymer layers allowed to create mechanically stable interfaces without damaging the separator. The polymers were found to establish maximum adhesion at lamination temperatures that typically are about 10 K above their respective melting temperature. Highest adhesive forces above 15 𝑁/𝑚 were observed at lamination enabled by a low-melting fluoroelastomer (3M FPO 3850) at 120 °C. Evidence was found that many adhesion points well distributed over the surface cause higher adhesion than few large adhesion points, when applied at the same areal loading, but no clear statement can be made as to whether microfibers or microparticles lead to better adhesion. Regarding electrochemical performance, the cellulose separator was shown to be well suited for lithium-ion batteries. All 4 polymers used were found to be electrochemically stable in the applied voltage window and suitable for the use in NMC622 / graphite battery cells. Laminated cells with the developed interlayers showed improved (THV, FPO, PVDFS) or equal (PVDF-K) fast charging and discharging capability. Cells with THV coating performed best in C-rate tests, where their discharge capacity at 3 C rate was improved by 34.1\% compared to non-laminated reference cells. Cells with the cellulose separator showed high capacity retention of 89.1\% after 500 fast-charging cycles. The morphology of applied layers was not found to have a major influence on electrochemical performance, as long as the binder loading is kept at a moderate level and the deposited layer is porous and well distributed over the separator's surface.}, subject = {Lithium-Ionen-Akkumulator}, language = {en} } @article{SchmittWallner2022, author = {Schmitt, Markus and Wallner, Klaus}, title = {Earth Operations Management - How managers found their right business}, doi = {10.57688/315}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-3150}, pages = {1 -- 27}, year = {2022}, abstract = {This paper assumes it is the year 2051, and we look back to how a new science, Earth Operations Management (EOM), has started and developed since the beginning of the 2020s. EOM was triggered by the idea to regard planet Earth as a business (PEaaB). Millions of business managers were enthused by this idea and have utilized their knowledge and power to achieve PEaaB´s vision: "Humans live their lives with dignity - now and for all generations to come." The paper reminds of the reasons for PEaaB, its basic characteristics, and key issues from a business management perspective. Then it gives a brief insight into the startup phase of PEaaB and illustrates how it has contributed to climate protection until 2051. The conclusion gets back to the beginning of the 2020s and reflects on this fictional science development review.}, subject = {Nachhaltigkeit}, language = {en} } @techreport{Schmitt2019, author = {Schmitt, Markus}, title = {Globale Nachhaltigkeit - eine erste Ann{\"a}herung}, doi = {10.57688/316}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-3162}, pages = {37}, year = {2019}, abstract = {Dieses Arbeitspapier bietet einen Einstieg in den Themenkomplex „globale Nachhaltigkeit". Nach einer Definition des Begriffs Nachhaltigkeit wird der Ist-Zustand beschrieben; dies l{\"a}sst den Ver{\"a}nderungsbedarf erkennen. Anschließend wird am Beispiel des Klimawandels verdeutlicht, wie dringend, wichtig und anspruchsvoll nachhaltige L{\"o}sungen sind. Die folgenden Abschnitte konzentrieren sich auf zwei Gruppen von Akteuren, die Unternehmen und die Wissenschaft; es werden Hinweise gegeben, wie Unternehmen den Nachhaltigkeitsanforderungen entsprechen, welche Wirtschaftsmodelle dazu passen und wie Forschung und Bildung beitragen k{\"o}nnen.}, subject = {Nachhaltigkeit}, language = {de} } @techreport{Schmitt2019, author = {Schmitt, Markus}, title = {Doughnut, Budget, Transformation - an Introduction to the Transdisciplinary Art of Global Sustainability}, doi = {10.57688/317}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-3170}, pages = {27}, year = {2019}, abstract = {This working paper offers an introduction to global sustainability. After a definition of sustainability the status quo is described, which shows the need for transformation. Then the example of climate change illustrates how urgently needed, important, and demanding sustainable solutions are. The following section focuses on businesses as one particular group of players; it explains how they can meet sustainability requirements and which economic models go with them.}, subject = {Nachhaltigkeit}, language = {en} } @techreport{Dietl2019, author = {Dietl, Guido}, title = {Decentralized Synchronization for Energy Efficient Wireless Sensor Networks—A Preliminary Study}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-2863}, pages = {22}, year = {2019}, abstract = {This research report presents a preliminary study on the use of decentralized synchronization based on pulse-coupled oscillators, also known as firefly synchronization, for energy efficient wireless sensor networks. Numerical results show that synchronity can be reached mostly in a few cycles, thus, showing that the investigated method is a good candidate to synchronize sleep modes which are mainly used to reduce power consumption of network nodes.}, language = {en} } @masterthesis{Dexl2018, type = {Bachelor Thesis}, author = {Dexl, Jakob Frederik}, title = {Mapping of natural learning processes for the development of neural network architectures - Implementation and comparison of approaches in the classification of radiological data sets}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-521}, school = {Hochschule f{\"u}r Angewandte Wissenschaften Landshut}, pages = {76}, year = {2018}, abstract = {In order to provide more transparency on convolutional neural networks (CNN) for education and research purposes this work has three main objectives: • Create CNN models based on two different architectures, which classify magnetic resonance images of the brain into normal and abnormal • Investigate these models by applying state of the art visualization techniques. For this purpose, a simple accessible Application Interface (API) for Keras sequential models will be developed. • Describe the quality of the models based on the visualizations and compare their overall classification to the human classification procedure.}, subject = {Neuronales Netz}, language = {en} } @masterthesis{Lorentschk2018, type = {Bachelor Thesis}, author = {Lorentschk, Michael}, title = {Benefit of a virtual reality rapid room planning application in marketing and sales of high involvement medical devices - ergonomics, user acceptance and profitability}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-530}, school = {Hochschule f{\"u}r Angewandte Wissenschaften Landshut}, pages = {78}, year = {2018}, abstract = {The purpose of this work is to evaluate the overall applicability of a rapid room planning tool including a virtual reality visualization mode for a room planning use case in the field of marketing and sales of high involvement medical devices, such as X-ray imaging systems. Four main aspects are identified and evaluated: ▪ The benchmark of VR applications in the field of high involvement marketing and sales, including B2B and B2C use cases. ▪ The potentially savable planning iterations and the associated costs within a room installation process, based on literature review of expert opinions in comparable fields. ▪ The degree of usability of the application, to which extent potential users can create and manipulate room layouts efficiently and without explicit training in advance - assessed in observed user tests with Philips Healthcare employees. Additionally, an employee survey was conducted. ▪ Customer acceptance regarding the concept of VR visualization and the possibly resulting improvement of visual imagination of device proportions in the anticipated environment in comparison to traditional means of product presentation (pictures, videos, real product) - assessed with healthcare professionals. The benchmark results reveal a multitude of already widely used VR applications in marketing and sales, especially factory planning is considered as a comparable high involvement use case. Subsequently, increased profitability in factory planning can be extended to medical room planning in form of increased efficiency through the reduction of iterations. The overall evaluation of the rapid room planning tool shows a high degree of usability and acceptance among test users and customers. Survey results are independent of customer proximity and age. This work concludes with recommendations for further development and the creation of additional content for the application.}, subject = {Virtuelle Realit{\"a}t}, language = {en} } @misc{Maleta2018, type = {Master Thesis}, author = {Maleta, Artur}, title = {Rapid Prototyping Umgebung f{\"u}r VR-Umgebungen in der Medizintechnik - Konzeptionierung, Entwicklung und Test}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-541}, school = {Hochschule f{\"u}r Angewandte Wissenschaften Landshut}, pages = {59}, year = {2018}, abstract = {Das Ziel dieser Arbeit ist die Unterst{\"u}tzung der Raumeinrichtungsplanung medizinischer Behandlungsr{\"a}ume f{\"u}r die Installation technischer Medizinprodukte. Durch eine realit{\"a}tsnahe Visualisierung der Raumplanung soll die Vorstellungskraft der Anwender unterst{\"u}tzt werden. Im Einsatzfeld soll die Kommunikaton zwischen Vertriebsmitarbeitern und Kunden beg{\"u}nstigt und eine Diskussionsgrundlage f{\"u}r unterschiedliche Varianten einer Raumplanung geschaffen werden. Dazu soll ein computergest{\"u}tztes System konzipiert werden, welches die Einhaltung der Distanzvorgaben von Einrichtungsgegenst{\"a}nden f{\"o}rdert. Die Anwender sollen eine Hilfestellung bei der Verifzierung der Raumplanung erhalten und {\"A}nderungen an der Raumplanung vornehmen k{\"o}nnen. Der Fokus wird in Zusammenarbeit mit der Firma Philips Medical Systems DMC GmbH auf die Raumplanung und Einrichtung von Produkten aus dem Diagnostic X-Ray Portolio gelegt. Zwei Produkte - dabei handelt es sich um Durchleuchtungsger{\"a}te aus der Medizintechnik - sollen bei der Raumplanung zur Auswahl verf{\"u}gbar sein. Des Weiteren soll die Machbarkeit eines Rapid-Roomplaning-Ansatzes auf Basis von Mobilger{\"a}ten untersucht werden. Das System wird aus einem Smartphone mit der Erweiterung zu einem HMD (Head Mounted Display) und der Entwicklung einer Smartphone-Applikaton aufgebaut. Das bedeutet, dass der Prototyp dieser Anwendung einen Untersuchungsgegenstand f{\"u}r den Einsatz mobiler VR Technologie im unternehmerischen Kontext darstellen wird. Aspekte der Usability sollen einen intuitven Umgang mit dem System gew{\"a}hrleisten und die Implementerung von 3D-Modellen einen Eindruck {\"u}ber die Produkte verschaffen, indem bereitgestellte 3D-Modelle in der Smartphone-Anwendung zur Raumplanung verwendet und in einer realit{\"a}tsnahen Visualisierung betrachtet werden k{\"o}nnen.}, subject = {Virtuelle Realit{\"a}t}, language = {de} } @techreport{Kleimaier2019, author = {Kleimaier, Alexander}, title = {Entwicklungspotential der modularen Axialflussmaschine "AxMDM"}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-560}, pages = {26}, year = {2019}, abstract = {An der HS Landshut wird eine Axialflussmaschine entwickelt, deren Eisenkreis aus einzelnen U-Jochen zusammengesetzt ist. Das erm{\"o}glicht eine modulare und einfach skalierbare Bauweise. Es werden lediglich planare Grundelemente f{\"u}r Rotorscheibe und Statorgrundplatte ben{\"o}tigt. Die als "AxMDM" bezeichnete Maschine kommt mit relativ wenig Permanentmagnetmaterial aus und erreicht ein hohes spezifisches Drehmoment bezogen auf ihr Gewicht. Schwerpunkt des vorliegenden Berichtes ist die Verbesserung des erzielbaren Drehmomentes und des Betriebsverhaltens im Grunddrehzahl- und Feldschw{\"a}chbereich. Nach einer ausf{\"u}hrlichen Messdatenanalyse und einem Modellabgleich erfolgt eine schrittweise Untersuchung des Optimierungspotentials auf Basis von Simulationsrechnungen. Neben den Material- und Drehmomentdaten wird auch die jeweils erzielbare Leistungskurve unter Einsatz einer drehmomentoptimalen Steuerstrategie bestimmt. F{\"u}r eine abschließende Bewertung des Maschinenkonzeptes wird ein direkter Vergleich zu einer Radialflussmaschine mit nahezu gleichem Bauraum- und Materialbedarf durchgef{\"u}hrt.}, subject = {Transversalflussmaschine}, language = {de} }