Sökning: "term analysis"

Visar resultat 16 - 20 av 2534 avhandlingar innehållade orden term analysis.

1. 16. Railway traffic disturbance management

   Författare :Johanna Törnquist; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Railway traffic; Transportation; Re-scheduling; Disturbance management; Decision support systems;

   Sammanfattning : With the increasing traffic volumes in many railway networks and reports on capacity deficiencies that result in insufficient punctuality and reliability, the need for efficient disturbance management solutions becomes evident. This thesis focuses on solutions that aim to minimise the consequences of disturbances for the various stakeholders and specifically on methods for re-scheduling the traffic. LÄS MER

3. 17. Stability analysis of channel flow laden with small particles

   Författare :Joy Klinkenberg; Luca Brandt; Cristian Marchioli; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transition; modal analysis; non-modal analysis; Direct Numerical Simulations; multi-phase flow; heavy particles; light particles; particle-laden;

   Sammanfattning : This thesis deals with the stability of particle laden flows. Both modal and non-modal linear analyses have been performed on two-way coupled particleladen flows, where particles are considered spherical, solid and either heavy or light. When heavy particles are considered, only Stokes drag is used as interaction term. LÄS MER

4. 18. Long-term cognitive outcome of childhood traumatic brain injury

   Författare :Catherine Aaro Jonsson; Ann-Charlotte Smedler; Ingrid Emanuelson; Erland Hjelmquist; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; traumatic brain injury; childhood; adolescence; neurosurgical care; cognitive development; executive functions; memory; verbal functions; long-term outcome; recovery; rehabilitation; follow-up; cluster analysis; Psychology; Psykologi; psykologi; Psychology;

   Sammanfattning : There is limited knowledge of cognitive outcome extending beyond 5 years after childhood traumatic brain injury, CTBI. The main objectives of this thesis were to investigate cognitive outcome at 6-14 years after CTBI, and to evaluate if advancements in the neurosurgical care, starting 1992, did influence long-term outcome and early epidemiology. LÄS MER

5. 19. On Supersingular Perturbations

   Författare :Christoph Neuner; Annemarie Luger; Rostyslav Hryniv; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; matematik;

   Sammanfattning : This thesis consists of four papers and deals with supersingular rank one perturbations of self-adjoint operators and their models in Hilbert or Pontryagin spaces. Here, the term supersingular describes perturbation elements that are outside the underlying space but still obey a certain regularity conditions. LÄS MER

7. 20. Asymptotic and universal spectral estimates with applications in many-body quantum mechanics and spectral shape optimization

   Författare :Simon Larson; Ari Laptev; Stefan Steinerberger; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spectral theory; shape optimization; semiclassical asymptotics; spectral inequalities; quantum mechanics; Mathematics; Matematik;

   Sammanfattning : This thesis consists of eight papers primarily concerned with the quantitative study of the spectrum of certain differential operators. The majority of the results split into two categories. LÄS MER