Nowadays, there are not many studies that have empirically analyzed the effect of functional programming on software quality. Through the era of microservices and cloud-based systems, functional programming is experiencing a growing usage. This is due to the features that this paradigm ...

In modern software development issues are very important for inter-team communication and project management. Issues are used to clearly state the requirements of a change request and allow teams to plan and track their tasks. As part of an agile development process new issues ...

Nowadays, there are several mature approaches for companies and organizations to collect, store and analyze voluminous data. Especially a thorough data analysis is crucial in order to gain new insights from these data, resulting in detailed knowledge, which can be finally exploited to&#...

The use of polymers in fluid-saturated porous media has increased in relevance during the last years. Polymers, which exist in the pore space of a solid skeleton, are able to interact with the pore fluid as well as with the solid. The interactions cause changes in&#...

High-fidelity CFD simulations of helicopter rotors are carried out to investigate the dynamic stall flow phenomenon. The simulations are based on two experimental test cases, namely a model rotor with high cyclic pitch control operated at DLR Göttingen, and a highly-loaded, high-speed t...

From the design phase to operation, machine availability represents one of the key indicators for the performance of a particle accelerator. Availability requirements are typically set at the beginning of a project and should be kept (or demonstrated) during the operation phase. In ...

In this dissertation, we investigate bio-inspired postural control mechanisms for bipedal running that actively use trunk oscillations to generate natural gaits. To this end, we employ a simplified template model, the spring-loaded inverted pendulum model with a trunk (TSLIP), which captures ...

Der steigende Einsatz von hochfesten Aluminiumwerkstoffen und zunehmende Produktivitätsanforderungen erfordern die Entwicklung angepasster, leistungsfähiger Zerspanungswerkzeuge. Um das Einsatzverhalten von Bohrwerkzeugen unter quasi-trockenen Bedingungen (MMS) zu verbessern, untersucht diese Arbeit die Wirkungsweise von geometrisch&#x...

Um das äquiaxial dendritische Kornwachstum abhängig von den Prozessparametern im Laserstrahlschweißprozess von Aluminiumlegierungen einstellen zu können wurde die 3D-Prozesskarte entwickelt. Diese gibt eine erforderliche tiefenspezifische Laserleistung, welche für das äquiaxiale Kornwachstum absorbiert werden muss, für e...

Performance-based design using computational and parametric optimization is an effective strategy to solve the multiobjective problems typical of building design. In this sense, this study investigates the developing process of parametric modeling and optimization of a naturally ventilated house locat...

In der heutigen VUCA-Geschäftswelt ist die Optimierung bestehender Produkte in vielen Branchen nicht länger zielführend. Um in Zukunft produktiv und langfristig erfolgreich zu sein, sind radikal neue Innovationen erforderlich. Dennoch ist die kontinuierliche, sogenannte inkrementelle Verbesserung bestehender Pr...

Gegenstand des ersten Teil der Dissertation war die Charakterisierung von unbekannten smektischen Phasen einer homologen Reihe von Terphenylen n-TPh-n (n = 8, 10, 16, 18). Hierbei zeigte sich, dass der Terphenyl-Kern getiltete smektische Phasen stark begünstigt. Durch die Orientierung der Proben&...

Communication systems with digital signal processors (DSPs) rely on data converters as interface blocks between the analog and the digital domain. The channel data rates in these systems can be increased by choosing a higher symbol rate and/or a more complex modulation format. ...

Quantum computing is a promising paradigm to solve certain computational problems that are intractable for classical computers. Quantum computers manipulate bits of quantum information called qubits. Their development has gained momentum in recent years. Cloud providers offered the first quantum ...