Sökning: "power spectra"
Visar resultat 1 - 5 av 151 avhandlingar innehållade orden power spectra.
1. Power Reactor Noise Studies and Applications
Sammanfattning : The present thesis deals with the neutron noise arising in power reactor systems. Generally, it can be divided into two major parts: first, neutron noise diagnostics, or more specifically, novel methods and algorithms to monitor nuclear industrial reactors; and second, contributions to neutron noise theory as applied to power reactor systems. LÄS MER
2. Experimental studies of wind turbine wakes : power optimisation and meandering
Sammanfattning : Wind tunnel studies of the wake behind model wind turbines with one, two and three blades have been made in order to get a better understanding of wake development as well as the possibility to predict the power output from downstream turbines working in the wake of an upstream one. Both two-component hot-wire anemometry and particle image velocimetry (PIV) have been used to map the flow field downstream as well as upstream the turbine. LÄS MER
3. Mean Wind and Turbulence Conditions in the Boundary Layer above Forests
Sammanfattning : As wind turbines have grown, new installation areas become possible. Placing wind turbines in forested landscapes introduce uncertainties to the wind resource estimation. LÄS MER
4. Study of Induction Machines with Rotating Power Electronic Converter
Sammanfattning : This thesis investigates a novel induction machine topology that uses a rotating power electronic converter. Steady-state and dynamic performance of the topology is studied to understand its operational principle. Furthermore the potential of improving its efficiency and power factor is investigated. LÄS MER
5. Contributions to the interpretation of myoelectric power spectra
Sammanfattning : .... LÄS MER