Sökning: "Turnout"
Visar resultat 1 - 5 av 21 avhandlingar innehållade ordet Turnout.
1. Growing into Voting : Election Turnout among Young People and Habit Formation
Sammanfattning : This thesis contains an introduction and four essays that together address the issues of turnout and habitual voting. Although voting is less unequal than other forms of political participation, it is still biased in favour of more socially affluent citizens. One way to achieve more equal participation is to increase the general turnout. LÄS MER
2. Towards Optimization of Railway Turnouts
Sammanfattning : The turnout (Switch & Crossing) is a vital component in railway networks as it provides flexibility to traffic operation by allowing trains to switch between tracks. The flexibility comes at a cost as the common lack of a transition curve in the diverging route together with the variation and discontinuities in rail profiles result in higher rail degradation rates than in regular track. LÄS MER
3. Mating and Political Inequality
Sammanfattning : Political equality is one of the cornerstones of a well-functioning democracy. Yet, very few democracies live up to this ideal. In this dissertation, I show that a central part of human behavior, mating, can help us explain why political inequalities are difficult to change. LÄS MER
4. Wheel–Rail Impact Loads and Track Settlement in Railway Crossings
Sammanfattning : Turnouts (Switches & Crossings, S&C) are critical components of a railway track requiring regular maintenance and generating high life cycle costs. A main driver for the high maintenance costs is the need to repair and replace switch rails and crossings as these components are subjected to a severe load environment. LÄS MER
5. Optimisation of Railway Switches and Crossings
Sammanfattning : Methods for simulation-based optimisation of the design of railway turnouts (switches & crossings, S&C) are developed and demonstrated. Building on knowledge of dynamic wheel–rail interaction in turnouts, it is investigated how rail profile degradation can be reduced by the optimisation of geometry and component stiffness of the track superstructure. LÄS MER