Visar resultat 1 - 5 av 172 avhandlingar innehållade ordet planes.
Sammanfattning : This dissertation collects four peer-reviewed articles that are published in academic journals. Two of the articles are about the multi-level governance of integration polices, and two study the effects of labour migration policies. LÄS MER
Sammanfattning : There is an increased interest in the microbial production of lactic acid as a raw material for the synthesis of lactic acid polymers as biodegradable plastics. However, two factors limit the economical competitiveness of lactic acid production by microorganisms: lactic acid inhibition, which decreases both fermentation rate and the maximum lactic acid concentration, and the efficiency in the recovery of lactic acid. LÄS MER
3. Géométrie digitale utilisée pour la discretisation et le recouvrement optimal des objets euclidiens
Sammanfattning : A Euclidean line in the plane is discretized and the discretized line is dilated by a rectangle. The thesis studies the dilations that cover the original line and determine the optimal ones. Similarly, dilations of discretized Euclidean hyperplanes are studied, and the optimal coverings are described.. LÄS MER
Sammanfattning : ropositional proof complexity is the study of the resources that are needed to prove formulas in propositional logic. In this thesis we are concerned with the size and space of proofs, and in particular with the latter.Different approaches to reasoning are captured by corresponding proof systems. LÄS MER
Sammanfattning : InGaN based blue and near-ultraviolet light emitting diodes and laser diodes have been successfully commercialized for many applications such as general lighting, display backlighting and high density optical storage devices. Despite having a comparably high defect density, these devices are known for their efficient operation, which is attributed to localization in potential fluctuations preventing carriers from reaching the centers of nonradiative recombination. LÄS MER