In freeform optics, the optimization is limited due to large number of parameters present in it. This limitation was overcome by a technique known as optimization using freeform deformation (OFFD). Though this technique proved to work well, it has left many challenges to the optical designer. These challenges are solved by providing mathematical design techniques. This implementation transformed the OFFD into an intelligent tool replacing the optical designer's efforts during the design process.

To create photonic multi-chip modules, integrated photonic chips need to be connected internally and to external glass fibers. A novel approach to address this task is the concept of photonic wire bonding, where free-standing polymer waveguides are printed in-situ by two-photon polymerization. This book contains a detailed description of the methodology of photonic wire bonding together with a number of key experiments.

The technologies currently employed for modeling complex systems, such as aircraft, spacecraft, or infrastructures, are sufficient for system description, but do not allow deriving knowledge about the modeled systems. This work provides the means to describe space systems in a way that allows automating activities such as deriving knowledge about critical parts of the system’s design, evaluation of test success, and identification of single points of failure.

Previously, software architects were unable to effectively and efficiently apply reusable knowledge (e.g., architectural styles and patterns) to architectural analyses. This work tackles this problem with a novel method to create and apply templates for reusable knowledge. These templates capture reusable knowledge formally and can efficiently be integrated in architectural analyses.

Die Bestimmung von Wahrscheinlichkeiten für Niederschlagsereignisse mit hoher Wiederkehrperiode ist wegen der kurzen Zeitspanne, in der Messdaten verfügbar sind, schwierig. Auch eine homogene Abdeckung durch Messstationen insbesondere in Gebirgen ist nur schwer realisierbar. In dieser Arbeit wird ein räumlich hoch aufgelöstes, analytisches Modell zur stochastischen Simulation von Starkniederschlägen in Verbindung mit großräumigen Flusshochwassern entwickelt, evaluiert und angewendet. The risk estimation of precipitation events with high recurrence periods is difficult due to the limited time scale with meteorological observations. A homogenous distribution of rain gauges, especially in mountainous terrain, is also hardly convertible. In this study an analytical model with a high spatial resolution, designed for stochastic simulations of flood-related precipitation, is developed, evaluated and applied to different investigation areas in Germany.

In this book, we introduce an automatic, experiment-based approach for performance problem diagnostics in enterprise software systems. The proposed approach systematically searches for root causes of detected performance problems by executing series of systematic performance tests. The presented approach is evaluated by various case studies showing that the presented approach is applicable to a wide range of contexts.

Die Bauwirtschaft und insbesondere der Betonbau unterliegen einem rasanten Wandel. Exakte Prognosen sind schwer zu erstellen, jedoch scheinen in Zukunft einzelne Bindemittel wie Portlandzement durch Kombinationen aus mehreren, aufeinander abgestimmten Bindemitteln und Feinststoffen abgelöst zu werden. Der vorliegende Tagungsband vermittelt Entwicklungsmöglichkeiten von Beton und bewertet diese hinsichtlich Ihrer Auswirkungen auf die zukünftige Betontechnologie sowie das Bauen in der Zukunft. The construction industry, especially concrete construction, are subject to a rapid change. Accurate forecasts are difficult to establish, but single binders such as ordinary Portland cement seem to be replaced by a combination of multiple blended binders and fine materials. The present conference proceedings convey the knowledge of development opportunities for concrete and evaluate the consequences for both future concrete technology and future construction.

In Deutschland verändert sich die Energieversorgung im Rahmen der Energiewende entscheidend. In diesem Zusammenhang wird über die thermische Abfallbehandlung diskutiert, denn die entsprechenden Anlagen stellen elektrische Energie oder Wärme zur Verfügung. Es werden die Anteile der Abfallverbrennungsanlagen am deutschen Primärenergieverbrauch und die Potenziale zur Strombereitstellung und Wärmeversorgung bestimmt. Dabei werden mögliche Verbesserungen bei der Energieeffizienz berücksichtigt. Energy supply in Germany is undergoing a major change, which is referred to as the energy transition. In this context, the thermal waste treatment is discussed, because the municipal solid waste incinerators provide electrical energy or heat. The work determines the share of waste incineration plants in the German primary energy consumption and the potential for electricity supply and heat supply. Improvements in electrical efficiency are considered

Die Rede von „technischen Assistenten“ in vielseitigen Arbeits- und Lebensbereichen hat derzeit Konjunktur in wissenschaftlichen und öffentlichen Debatten über Visionen zukünftiger Pflegesettings Von einem wirkungsvollen Einsatz dieser Technologien aber nicht gesprochen werden. Vor diesen Problemstellungen schlagen die Autoren den Ansatz der bedarfsorientierten Technikentwicklung vor, der in der vorgelegten Studie exemplarisch an der Pflege von Menschen mit Demenz entwickelt wird. "Technical assistants" in many fields of work and life are currently gaining attention in scientific and public debates with regard to visions of future care settings. However, it can not be stated that these technologies are used effectively. Against these problems, the authors propose the approach of demand-oriented technology development, which is exemplarily shown in the submitted study on the care of people with dementia.

Wissenschaftliche und technische Zukunftsvisionen sind ein Thema der Wissenschaftskommunikation, jedoch auch eines von fiktionalen Utopien und werden zunehmend auch als Technikzukünfte im Bereich von Technikfolgenabschätzung und Science and Technology Studies untersucht. Der vorliegende Band ist das Ergebnis einer Tagung, bei der sich Wissenschaftler verschiedener Disziplinen mit den Schnittstellen dieser drei Themenfelder auseinandergesetzt haben. Scientific and technological visions of the future are a topic of science communication, but also one of fictional utopias, and are increasingly being investigated as futures of technology in the fields of technology assessment and science & technology studies. In these proceedings the results of a conference are outlined in which scientists from various disciplines dealt with the interfaces of these three topics.