Sökning: "numerical stability"
Visar resultat 16 - 20 av 170 uppsatser innehållade orden numerical stability.
16. Deep Ring Artifact Reduction in Photon-Counting CT
Master-uppsats, KTH/FysikSammanfattning : Ring artifacts are a common problem with the use of photon-counting detectors and commercial deployment rests on being able to compensate for them. Deep learning has been proposed as a candidate for tackling the inefficiency or high cost of traditional techniques. LÄS MER
17. Analysis of rock grouting with variable injection pressure
Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : Rock grouting is an effective technique frequently used in rock engineering to reduce groundwater ingress and increase the stability of surrounding rock mass. The real time grouting control (RTGC) is one of widely used analytical models to predict the grouting process. LÄS MER
18. Convection in a spherical shell under rapid rotation: numerical simulations
Master-uppsats, KTH/Teknisk mekanikSammanfattning : A numerical method for solving the buoyancy-driven magneto-convection equations in a rapidly rotating spherical shell is presented. The method is implemented through a FORTRAN 90 program, based on a FORTRAN 66 code written by Hollerbach [International Journal for Numerical Methods in Fluids, 32 (2000)] and partially translated in FORTRAN 90 by Riquier. LÄS MER
19. Optimization of support in rock pillars between two parallel tunnels
Master-uppsats, KTH/Jord- och bergmekanikSammanfattning : When two parallel tunnels are excavated under high to moderate horizontal in-situ stresses combined with minor deformations in the pillar between the tunnels, the in-situ stresses can be redistributed over the tunnels in form of two compressive arches and are transferred from the roof to the abutments of the two tunnels. At additional deformations in the pillar, a new redistribution of the stresses can occur creating one compressive arch over both of the tunnels. LÄS MER
20. Axially loaded screw joints in wooden structures exposed to fire : Fire tests in furnace and numerical calculations in TASEF of different screw mounting variations
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserSammanfattning : To achieve sufficient stability of a structure in a fire scenario, a thorough design of joints in wooden structures are as important as the design of the construction itself. As an earlier study points out, there are no existing design method available to determine the load capacity of an axially loaded screw joint in wooden structures, which complicate the process of a thorough design of the joint in a fire scenario. LÄS MER