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Visar resultat 1 - 5 av 41 avhandlingar som matchar ovanstående sökkriterier.
1. Some Aspects of Resource and Behavioral Economics
Sammanfattning : This thesis consists of four essays in resource and behavioral economics.Resource Extraction, Capital Accumulation and Time HorizonThe paper shows that relaxing the standard infinite horizon assumption can explain the patterns of exhaustible resource extraction and prices for the last century. LÄS MER
2. Model Predictive Control for Cooperative Rendezvous of Autonomous Unmanned Vehicles
Sammanfattning : This thesis investigates cooperative maneuvers for aerial vehicles autonomously landing on moving platforms. The objective has been to develop methods for safely performing such landings on real systems subject to a variety of disturbances, as well as physical and computational constraints. LÄS MER
3. High-Temperature Durability Prediction of Ferritic-Martensitic Steel
Sammanfattning : Materials used for high-temperature steam turbine sections are generally subjected to harsh environments with temperatures up to 625 °C. The superior creep resistance of 9–12 % Cr ferritic-martensitic steels makes them desirable for those critical steam turbine components. LÄS MER
4. Structure-Exploiting Numerical Algorithms for Optimal Control
Sammanfattning : Numerical algorithms for efficiently solving optimal control problems are important for commonly used advanced control strategies, such as model predictive control (MPC), but can also be useful for advanced estimation techniques, such as moving horizon estimation (MHE). In MPC, the control input is computed by solving a constrained finite-time optimal control (CFTOC) problem on-line, and in MHE the estimated states are obtained by solving an optimization problem that often can be formulated as a CFTOC problem. LÄS MER
5. Formations and Obstacle Avoidance in Mobile Robot Control
Sammanfattning : This thesis consists of four independent papers concerningthe control of mobile robots in the context of obstacleavoidance and formation keeping. The first paper describes a new theoreticallyv erifiableapproach to obstacle avoidance. LÄS MER