Sökning: "natural experiments"

Visar resultat 11 - 15 av 3117 avhandlingar innehållade orden natural experiments.

1. 11. Nuclear data uncertainty quantification and data assimilation for a lead-cooled fast reactor : Using integral experiments for improved accuracy

   Författare :Erwin Alhassan; Henrik Sjöstrand; Rochman Dimitri; Michael Österlund; Stephan Pomp; Oscar Cabellos; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Total Monte Carlo; ELECTRA; nuclear data; uncertainty propagation; integral experiments; nuclear data adjustment; uncertainty reduction;

   Sammanfattning : For the successful deployment of advanced nuclear systems and optimization of current reactor designs, high quality nuclear data are required. Before nuclear data can be used in applications they must first be evaluated, tested and validated against a set of integral experiments, and then converted into formats usable for applications. LÄS MER

3. 12. Topics in optimal design of experiments

   Författare :Sofia Normark; Hans Nyquist; Johan Lyhagen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optimal design; factorial experiments; minimax designs; efficiency; locally optimal designs; generalized linear models; binary data; statistik; Statistics;

   Sammanfattning : This thesis contributes to optimal design of experiments in situations where the optimal design depends on unknown parameters. Such situations often occur when the response variable does not have normal distribution, as is the case with many generalized linear models (GLM) and many models for binary response. LÄS MER

4. 13. Accelerators for Physics Experiments : From Diagnostics and Control to Design

   Författare :Elena Wildner; Thomas Lindblad; Mikael Eriksson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astroparticle physics; Astropartikelfysik;

   Sammanfattning : This thesis develops techniques of control-methods, optimization, and diagnostics of accelerator equipment and the produced particle beams with emphasis on the Large Hadron Collider (LHC) project at CERN. From a solid knowledge of the characteristics of the manufactured accelerator equipment gained from in-depth measurements and analysis of measured data, a link to an enhanced equipment design can be made. LÄS MER

5. 14. Using Language Technology to Mediate Medical Information on Health Portals : User Studies and Experiments

   Författare :Andrea Andrenucci; Hercules Dalianis; Sumithra Velupillai; Diego Mollá Aliod; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; language technology; health portals; cross-language information retrieval; knowledge patterns; Computer and Systems Sciences; data- och systemvetenskap;

   Sammanfattning : The World Wide Web has revolutionized our lifestyle, our economies and services within health care. Health care services are no longer provided only at specialist centers and at scheduled hours, but also through online tools that give health care consumers access to medical information, health records, medical counselling and peer support. LÄS MER

7. 15. Experiments with Entangled Photons : Bell Inequalities, Non-local Games and Bound Entanglement

   Författare :Muhammad Sadiq; Mohamed Bourennane; Rupert Ursin; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fysik; Physics;

   Sammanfattning : Quantum mechanics is undoubtedly a weird field of science, which violates many deep conceptual tenets of classical physics, requiring reconsideration of the concepts on which classical physics is based. For instance, it permits persistent correlations between classically separated systems, that are termed as entanglement. LÄS MER