Sökning: "control groups"
Visar resultat 1 - 5 av 1852 avhandlingar innehållade orden control groups.
1. Performance Quantification of Interarea Oscillation Damping Using HVDC
Sammanfattning : With the transition towards renewable energy, and the deregulation of the electricity market, generation patterns and grid topology are changing. These changes increase the need for transfer capacity. One limiting factor, which sometimes leads to underutilization of the transmission grid, is interarea oscillations. LÄS MER
2. Frihet under kontroll : Om kontroll i åkerinäringen
Sammanfattning : This dissertation, based on two studies, examines the significance of formal control, i.e. the actors and agencies whose formal task involves the use of a range of measures to exercise control within the road haulage industry. LÄS MER
3. Fuel-efficient and safe heavy-duty vehicle platooning through look-ahead control
Sammanfattning : The operation of groups of heavy-duty vehicles at small inter-vehicular distances, known as platoons, lowers the overall aerodynamic drag and, therefore, reduces fuel consumption and greenhouse gas emissions. Experimental tests conducted on a flat road and without traffic have shown that platooning has the potential to reduce the fuel consumption up to 10%. LÄS MER
4. Control or elimination : terms for public health interventions against tungiasis and schistosomiasis haematobium
Sammanfattning : The thesis revolves around diagnosis and treatment of tungiasis (sand flea disease) and schistosomiasis haematobium. The causing parasites, Tunga penetrans and Schistosoma haematobium, both have the ability to penetrate intact skin. LÄS MER
5. Fundamental Control Performance Limitations for Interarea Oscillation Damping and Frequency Stability
Sammanfattning : With the transition towards renewable energy and the deregulation of the electricity markets, the power system is changing. Growing electricity demand and more intermittent power production increase the need for transfer capacity. Lower inertia levels due to a higher share of renewables increase the need for fast frequency reserves (FFR). LÄS MER