numerical problems in the calculation of electric field and charge density profiles for mass impregnated non-draining hvdc cables subjected to fast polarity reversals

The goal of this simulation thesis is to present a tool for studying and eliminating various numerical problems observed while analyzing the behavior of the MIND cable during fast voltage polarity reversal. The tool is built on the MATLAB environment, where several simulations were run to achieve oscillation-free results. This thesis will add to earlier research on HVDC cables subjected to polarity reversals. Initially, the code does numerical simulations to analyze the electric field and charge density behavior of a MIND cable for certain scenarios such as before, during, and after polarity reversal. However, the primary goal is to reduce numerical oscillations from the charge density profile. The generated code is notable for its usage of the Arithmetic Mean Approach and the Non-Uniform Field Approach for filtering and minimizing oscillations even under time and temperature variations.

Joking apart: humour in advertising and its translation are a serious matter

Through the analysis of some case studies, this thesis aims at exploring translation strategies of humour in advertising. Every day we are surrounded by advertising material which prompts us to buy a certain product. Consequently, translation in this field takes on an importance that goes beyond mere linguistic rendition: the quality of the translation may have economic consequences for the underlying company. To this peculiar situation, some advertisements show an even more specific feature on which this study focuses: humour. Humour in advertising is a rather recent strategy with the great advantage of attracting attention and ensuring a greater impact on potential consumers. As a result, translating humour in advertising becomes an operation to be carried out with great awareness: first of all, it is necessary to know the culture (and not only the language) of the audience to which the advertisement is addressed, in order to preserve the humorous effect and avoid introducing offensive elements, one of the risks that will be discussed in the paper. This thesis begins with a theoretical section, which is divided into four chapters devoted respectively to the history and language of advertising, the history and theories of humour, humour as a strategy in advertising, and the translation of humour in advertising (with particular reference to examples of creative translations that demonstrate a mastery of the language and knowledge of the target culture). The analytical section is entrusted to the fifth chapter, which is dedicated to the analysis of humour-based advertising material. In order to preserve the coherence of the case study, international advertising campaigns of only one product type (beer) were chosen.

Diagnosing criticality in symmetric and chiral clock models

Quantum clock models are statistical mechanical spin models which may be regarded as a sort of bridge between the one-dimensional quantum Ising model and the one-dimensional quantum XY model. This thesis aims to provide an exhaustive review of these models using both analytical and numerical techniques. We present some important duality transformations which allow us to recast clock models into different forms, involving for example parafermions and lattice gauge theories. Thus, the notion of topological order enters into the game opening new scenarios for possible applications, like topological quantum computing. The second part of this thesis is devoted to the numerical analysis of clock models. We explore their phase diagram under different setups, with and without chirality, starting with a transverse field and then adding a longitudinal field as well. The most important observables we take into account for diagnosing criticality are the energy gap, the magnetisation, the entanglement entropy and the correlation functions.