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Université de Neuchâtel

Ramsey spectroscopy in a Rubidium vapor cell and realization of an ultra-stable atomic clock

Gharavipour, Mohammadreza ; Mileti, Gaetano (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Divers domaines d’application dans l’industrie, les télécommunications, la navigation et l’espace exigent des étalons de fréquence fiables, compacts et performants avec un niveau de stabilité de −14 à 105s (équivalent à <1 ns/jour). Avec la technologie des lasers à semi-conducteurs, la technique du pompage optique par laser a ouvert de nouveaux...

Université de Neuchâtel

The impact of official development assistance on the donor's economy : the case of Switzerland

López, Luciano ; Zarin-Nejadan, Milad (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018 ; 2696.

Cette thèse analyse l'impact économique de l'Aide Publique au Développement (APD) sur le pays donateur pour le cas de la Suisse. Comme première étape, le chapitre 1 discute d'une approche « flux de fonds » pour quantifier l'impact de l'APD bilatérale et multilatérale sur l'économie du pays donateur. Cette méthodologie simple mais rigoureuse, permet de calculer l'impact primaire...

Université de Neuchâtel

Energy service contracting : an economic perspective

Klinke, Sandra ; Farsi, Mehdi (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018 ; 2672.

Les contrats de services énergétiques consistent à externaliser au travers d’un contrat de longue durée la provision et l’optimisation de services d’énergie à un contracteur, nommé ESCO (Energy Service Company). Ce modèle d’affaire est perçu dans la littérature comme un instrument de marché prometteur pour déployer des projets liant énergie renouvelable et économies...

Università della Svizzera italiana

Time aware location recommendations in location based social networks

Mudda, Steven ; Giordano, Silvia (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO012.

Smartphones have fundamentally changed how people make choices about the products and services they consume and the way they interact with each other. The spread and extensive usage of mobile applications has led to the rise of Location-based Social Network (LBSN) services like Foursquare, Yelp etc, that aim to aim to provide new and novel places of interest to people based on their interests...

Université de Fribourg

Interactions of "Sarracenia purpurea" and its inquilines : comparing Europe and North America

Zander, Axel ; Bersier, Louis-Félix (Dir.)

Thèse de doctorat : Université de Fribourg, 2016 ; no. 1984.

Sarracenia purpurea is a carnivorous pitcher plant from North America and a model system for aquatic communities. After the pitchers fill up with rainwater, a food web forms in these detritus-fueled ecosystems ranging from bacteria to insect larvae, including the top predator Wyeomyia smithii. Two weeks after opening this food webs consists only of a handful of small and fast dispersing species...

Università della Svizzera italiana

Path planning for mobile robots in the real world : handling multiple objectives, hierarchical structures and partial information

Guzzi, Jérôme ; Gambardella, Luca Maria (Dir.) ; Giusti, Alessandro (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO010.

Autonomous robots in real-world environments face a number of challenges even to accomplish apparently simple tasks like moving to a given location. We present four realistic scenarios in which robot navigation takes into account partial information, hierarchical structures, and multiple objectives. We start by discussing navigation in indoor environments shared with people, where routes are...

Università della Svizzera italiana

Efficient combinatorial optimization algorithms for logistic problems

Papapanagiotou, Vasileios ; Gambardella, Luca Maria (Dir.) ; Montemanni, Roberto (Codir.) ; Schmidhuber, Jürgen (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO011.

The field of logistics and combinatorial optimization features a wealth of NP-hard problems that are of great practical importance. For this reason it is important that we have efficient algorithms to provide optimal or near-optimal solutions. In this work, we study, compare and develop Sampling-Based Metaheuristics and Exact Methods for logistic problems that are important for their...

Università della Svizzera italiana

The importance of geographical proximity : Evidence on the concentration of firms, culture and political ideologies

Mantegazzi, Daniele ; Maggi, Rico (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018ECO008.

This dissertation proposes three empirical essays focusing on the importance of geographical concentrations along various dimensions in regional economics, dealing with topics regarding agglomeration spillovers, firm performance, culture and soft institutions as well as the geographical concentration of political ideologies. The first chapter aims at empirically verifying whether agglomeration...