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Course of studies
Formal Description of Use Cases for Industry 4.0 Maintenance Processes Using Blockchain Technology
(2019)
Flexible piezoresistive PDMS metal-thin-film sensor-concept for stiffness evaluation of soft tissues
(2019)
The rise of digital twins in the manufacturing industry is accompanied by new possibilities, like process automation and condition monitoring, real time simulations and quality and maintenance prediction are just a few advantages which can be realized. This paper takes a novel approach by extracting the fundamental knowledge of a data set from a production process and mapping it to an expert fuzzy rule set. Afterwards, new fundamental augmented data is generated by exploring the feature space of the previously generated fuzzy rule set. At the same time, a high number of artificial neural network (ANN)models with different hyperparameter configurations are created.
The best models are chosen, in line with the idea of survival of the fittest, and improved with the additional training data sets, generated by the fuzzy rule simulation. It is shown that ANN models can be improved by adding fundamental knowledge represented by the discovered fuzzy rules. Those models can represent digitized machines as digital twins. The architecture and effectiveness of the digital twin is evaluated within an industry 4.0 use case.
Auf die Frage, was die Wissenschaft der Physiotherapie ist, gibt es derzeit keine zufriedenstellende Antwort. Das weist einleitend bereits auf das kritische Fazit des Beitrags hin. Eine wissenschaftliche Disziplin ist in der Lage, eine Antwort darauf zu geben, welches ihr Gegenstand, ihre Methoden des Erkenntnisgewinns und ihr Geltungsbereich sind. Grundsätzlich ist es sinnvoll, sich zunächst mit wissenschaftstheoretischen Grundannahmen zur Formierung wissenschaftlicher Disziplinen und deren Bezügen zu einer beruflichen Praxis sowie deren eingebunden Sein in eine gesellschaftliche Realität auseinanderzusetzen. Ziel ist es, sich Bedarfen einer physiotherapeutischen Disziplinbildung zuzuwenden und diese darauffolgend an der Realität zu prüfen. Dieser Dreischritt (Klärung wissenschaftstheoretischer Grundannahmen, definieren der Ziele von Theorienentwicklung und ihre empirische Überprüfung) soll im Folgenden mittels einer kritischen Position in Form zweier Thesen, die zur Diskussion gestellt werden, skizziert werden. Was ist eine Physiotherapiewissenschaft und wie steht sie zur Praxis der Physiotherapie?
Predictive Virtual Patient Modelling of Mechanical Ventilation: Impact of Recruitment Function
(2019)
Ensuring data quality is central to the digital transformation in industry. Business processes such as predictive maintenance or condition monitoring can be implemented or improved based on the available data. In order to guarantee high data quality, a single data validation system are usually used to validate the production data for further use. However, using a single system allows an attacker only to perform one successful attack to corrupt the whole system. We present a new approach in which a data validation system using multiple different validators minimizes the probability of success for the attacker. The validators are arranged in clusters based on their properties. For a validation process, a challenge is given that specifies which validators should perform the current validation. Validation results from other validators are dropped. This ensures that even for more than half of the validators being corrupted anomalies can be detected during the validation process.
Membranverfahren bei künstlichen Organen : Transportmodelle zur Auslegung extrakorporaler Verfahren
(2019)
Population growth, urbanization and climate change are regarded as the megatrends of today's society. This goes hand in hand with a high consumption of resources and pollution. Indeed, these megatrends are mutually reinforcing. A significant part of this is due to mobility in daily life. Technological change such as digitalization, creates innovative concepts to improve mobility and to deal with these changing circumstances. A comprehensive concept in this respect is mobility as a service. This thesis focuses on the identification of the mobility ecosystem and thus on the various stakeholders. First of all, it deals with the definition of mobility as a service in order to identify the ecosystem in particular in the second step. Mobility is classified and analyzed by working on the basis of secondary literature and a quantitative as well as qualitative methodology in expert interviews. This allows conclusions about the relationships, prerequisites and obstacles within the ecosystem and stakeholders.
The results of the thesis suggest that collaboration within the ecosystem is a prerequisite for the implementation of mobility as a service. Furthermore, that mobility as a service should ensure adaptability, since local infrastructures differ between Germany, USA and China, but also within these countries. This adaption process is iterative. The obstacles are interoperability and the willingness to cooperate. Moreover, the results imply that mobility as a service will assert itself more quickly in urban areas due to factors such as the pressure to act and the availability of mobility services as well as the number of customers.
Global warming provokes our climate and the world how we know it today to change severely. The production of food together with its consumption is responsible for 19-29% of world’s greenhouse gas emissions caused by human activities and further rises are
expected. As a response to this phenomenon, the assessment of a product’s carbon footprint has awaken huge interest with the purpose of controlling food’s environmental impact during its life-cycle. In order to involve individuals in the target of reducing harmful emissions, besides governmental and business efforts, CO2 labels have been developed to communicate a product’s carbon footprint and enabling consumers to make more climate-friendly purchase decisions. However, it has been shown that a successful
implementation of CO2 labels on grocery products still confronts barriers from the consumer side.
For a better understanding of the meaning of mentioned labels, this thesis deepens the theoretical backgrounds of greenhouse gas emissions and the carbon footprint related to the food industry. In a second step, the acceptance and effectiveness of carbon labels on
groceries will be analysed critically by using contextual literature reviews and a case study on German purchase behaviour.
Islamic banking is the new trend emergent within the modern-day banking industry, yet minimal literature is written about it. Most of the literary content today is regarding conventional banking, especially in non-Muslim countries and continents, Europe and U.S. included. Lack of literature is a threat to the operationalization of both modes of banking, due to lack of information and market analysis data. One of the fields where minimal literature coverage exists is market regulation – which is basically information as to how these two types of banking are regulated according to legislative structures. In light of this literature gap, this study emerges to explore the market regulative structure of both Islamic and conventional banks. The methodology to collect primary data is through interviews of selected players in both Islamic and conventional banks, such as bank managers, consultants, and personnel in the IT and finance department. The results of the interviews demonstrate that Islamic banks are faced with shortage of market regulation structures while conventional banks, on the other hand, are overwhelmed with over-regulation. The study provides several feasible solutions for these challenges.