This work is devoted to the problem of thermal fracture of a functionally graded coating on a homogeneous substrate (FGC/H) with an emphasis on the analysis of a special system of cracks that simulates a curved interface. The FGC/H structure contains the pre-existing crac...

The influence of the laser fluence on the quality of percussion-drilled holes was investigated both experimentally and by an analytical model. The study reveals that the edge quality of the drilled microholes depends on the laser fluence reaching the rear exit of the hole and&...

The availability of commercial ultrafast lasers reaching into the kW power level offers promising potential for high-volume manufacturing applications. Exploiting the available average power is challenging due to process limits imposed by particle shielding, ambient atmosphere breakdown, and heat accu...

The two-dimensional multi-angle light scattering (2D-MALS) technique has been extended for single-shot size measurements of soot aggregates in flames. Six cameras are used for instantaneous acquisition of the elastic scattering from the aggregates at different directions between 10 to 90∘ of ...

A simplified analytical model is presented that predicts the depth progress during and the final hole depth obtained by laser percussion drilling in metals with ultrashort laser pulses. The model is based on the assumption that drilled microholes exhibit a conical shape and that&#x...

We investigate the number of straight lines contained in a K3 quartic surface X defined over an algebraically closed field of characteristic 3. We prove that if X contains 112 lines, then X is projectively equivalent to the Fermat quartic surface; otherwise, X contains at most...

Body dysmorphic disorder (BDD) is associated with low self-esteem. The aim of this meta-analysis was to examine the strength of the cross-sectional relationship between BDD symptom severity and global self-esteem in individuals with BDD, mentally healthy controls, community or student samples,&#x...

The current energy transition is a key driver for the continuous development of fuel cells and electrolyzers due to the rapid growth of the clean energy demand and the need to overcome the intermittency of the power supply of renewable energy sources, such as wind and...

Human language changes over time. This change occurs on several linguistic levels such as grammar, sound or meaning. The study of meaning changes on the word level is often called 'Lexical Semantic Change' (LSC) and is traditionally either approached from an onomasiological pers...

Context: Chaos Engineering is an approach for investigating the resilience of software systems, i.e. their ability to withstand unexpected events, adapt accordingly, and continue providing functionality. An integral part of the approach is continuous experimentation, expressed in continuously executing...

Sortieren ist ein grundlegendes Problem der Informatik und es existieren viele bekannte Sortieralgorithmen. Der wohl meistgenutzte Algorithmus ist Quicksort, ein rekursiver in-place Algorithmus, welcher nach dem Divide and Conquer Prinzip arbeitet. Die Eingabe des Algorithmus wird durch die Wahl eines...

Graph neural networks (GNNs) are a topic of increasing interest in recent years. They have the potential to handle irregularly structured data, which is of great interest for graph-structured data. Like other areas, graph-structured data suffers from a lack of data. The available d...

Contraction Hierarchies describes a technique that enormously accelerates the calculation of shortest paths on road networks in practice. In the first part of this thesis, this acceleration is analyzed theoretically. For this purpose, we introduce the graph family of lightheaded grids. ...

In dieser Studienarbeit werden die Eigenschaften, sowie die geometrische Gestalt von superhydrophoben Oberflächen anhand einer ausführlichen Literaturrecherche aufgezeigt. Wassertropfen nehmen auf superhydrophoben Oberflächen eine nahezu sphärische Gestalt an und rollen leicht von einer geneigten Oberflächen ab. Dab...

Das in dieser Arbeit vorgestellte Gesamtkosten-Modell ermöglicht einen standortspezifischen Kostenvergleich anhand von 23 Einzelkostenpunkten. Die Kosten werden bis auf eine Struktur- bzw. Objektebene aufgelöst und die einzelnen Elemente separat als vereinfachte Modelle abgebildet. Die Granularität des Modells ...