Sökning: "låg-energi"
Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet låg-energi.
1. In the Business of Building Green : The value of low-energy residential buildings from customer and developer perspectives
Sammanfattning : An overarching aim of this research was to investigate the comprehensive value of green residential buildings as seen from two perspectives: that of the developer and that of the occupant (the customer). The dissertation consists of studies presented in seven papers. LÄS MER
2. The effect of spacecraft charging on low-energy ion measurements around comet 67P/Churyumov-Gerasimenko
Sammanfattning : A spacecraft in space interacts with the surrounding environment and aqcuires an electrostatic potential. Charged particles are constantly bombarding the surface of the spacecraft, and at the same time solar EUV radiation induces photoemission, causing electrons to be emitted from the surface. LÄS MER
3. III–V Nanowire Surfaces
Sammanfattning : This dissertation deals with the geometric and electronic structure of surfaces on III–V semiconductor nanowires (NWs). NWs made of InAs, GaAs, and InP have been studied using scanning tunneling microscopy/spectroscopy (STM/S), low energy electron microscopy (LEEM), photoemission electron microscopy (PEEM), and x-ray photoelectron spectroscopy (XPS). LÄS MER
4. Variational Methods in Combinatorial Optimization and Phylogeny Reconstruction
Sammanfattning : Algorithms based on the variational approach, as used in statistical physics, are developed. For constraint satisfaction problems a novel cost function, based on information-theoretic arguments, is introduced, and an algorithm similar to the mean-field annealing algorithm is proposed. LÄS MER
5. Twisted Loops and Models for Form-factors and the Muon g-2
Sammanfattning : In this thesis we use effective field thory methods and models for low energy QCD in two different contexts. One is direct calculation of contributions to the anomalous magnetic moment of the muon, muon g-2. The other is estimates of systematic sources of uncertainty in lattice QCD simulations. The work is presented in five papers. LÄS MER