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A high-purity synthetic fused silica sample (Suprasil 2) was irradiated by a KrF laser at 248 nm, 300 Hz, and 500 mJ/cm(2). Transmission at 248 nm, transmission at 210 nm, and fluorescence at 650 nm were monitored in real time. The sample starts out in a weakly absorbing state. Then, after several million pulses, it experiences a sudden increase in 248-nm(More)
  • Julie Marie Brönnimann, I K Pour, THESE DE DOCTORAT, Julie Broennimann
  • 2016
The objective of this Thesis is to study the geodesic growth of finitely generated groups. Firstly, we study direct, free and wreath products of groups. More specifically, we give lower bounds for the minimal geodesic growth rates of abelian groups and upper bounds for the minimal geodesic growth rates of direct products of two groups. Moreover, we give the(More)
Several speech processing applications such as digital hearing aids and personal communications devices are characterized by very tight requirements in power consumption, size, and voltage supply. These requirements are difficult to fulfill, given the complexity and number of functions to be implemented, together with the real time requirement and large(More)
.............................................................................................................................9 ORGANISATION OF THE THESIS...................................................................................13 Introduction Free living protists in the current biosphere, their diversity and systematics........15 Testate amoebae as(More)