Sökning: "Hazard Functions"

Visar resultat 11 - 15 av 31 avhandlingar innehållade orden Hazard Functions.

1. 11. Source analysis of multiplet earthquakes (two case studies in Iran)

   Författare :Samar Amini; Roland Roberts; Björn Lund; Zaher Hossein Shomali; Kuvvet Atakan; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Multiplet earthquakes; slip inversion; Coulomb stress; rupture directivity;

   Sammanfattning : Multiplet earthquakes are large earthquakes of similar magnitude which occur close in time in the same limited geographical area. They are not common but they considerably increase the potential hazard in the area in which they occur. LÄS MER

3. 12. On the detection and management of urinary bladder carcinoma

   Författare :Andreas Thorstenson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Aims: To describe the diagnosis and clinical course of an unselected population-based cohort of patients with newly diagnosed transitional cell carcinoma of the urinary bladder. To assess if random bladder biopsies and the detection of concomitant carcinoma in situ have an impact on management and clinical outcome in bladder cancer patients. LÄS MER

4. 13. Heterogeneity in oligopoly : theories and tests

   Författare :Rickard Sandin; Handelshögskolan i Stockholm; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

   Sammanfattning : This dissertation consists of five separate chapters, of which the three first three are empirical and the last two are theoretical. Chapter 1: Competition in Interrelated Markets: An Empirical Study. (Co-authored with Marcus Asplund.)This chapter studies competition in small, concentrated and interrelated markets. LÄS MER

5. 14. Cost optimization of maintenance scheduling for wind turbines with aging components

   Författare :Quanjiang Yu; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Integer linear optimization; Age-based preventive maintenance scheduling; Renewal-reward theorem; Weibull distribution; Combinatorial optimization; Wind turbine maintenance; Virtual replacement; Condition monitoring data; Cox proportional hazards method; Linear programming;

   Sammanfattning : A major part of the wind turbine operation cost is resulted from the maintenance of its components. This thesis deals with the theory, algorithms, and applications concerning minimization of the maintenance cost of wind power turbines, using mathematical modelling to find the optimal schedules of preventive maintenance activities for multi-component systems. LÄS MER

7. 15. Seismicity and crustal structure in Iceland

   Författare :Claudia Abril; Ólafur Gudmundsson; Vala Hjörleifsdóttir; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earthquake relocation; local earthquake tomography;

   Sammanfattning : The main goal of this Ph.D. thesis is to improve locations of earthquake hypocenters and to resolve heterogeneous crustal structure and its effects on travel times. The data and case studies are drawn from the Icelandic national SIL network and the temporary NICE project deploy-ment in the Tjörnes Fracture Zone. LÄS MER