Sökning: "line source"
Visar resultat 6 - 10 av 387 avhandlingar innehållade orden line source.
6. On-line Mobile in situ Gamma Spectrometry
Sammanfattning : Mobile in situ gamma spectrometry is an important instrument in the emergency preparedness for nuclear accidents. This work contributes through the development of strategies and analysis methods for two applications: an on-line search for gamma-emitting orphan sources and on-line estimation of the depth distribution of 137Cs. LÄS MER
7. Voltage Source Converters with Energy Storage Capability
Sammanfattning : This project deals with voltage source converters with energy storage capability. The main objective is to study the possible benefits of energy storage to a power system with a VSC as the interface between them. First of all, a converter control system is proposed for a two level VSC. LÄS MER
8. MMIC-based Low Phase Noise Millimetre-wave Signal Source Design
Sammanfattning : Wireless technology for future communication systems has been continuously evolving to meet society’s increasing demand on network capacity. The millimetre-wave frequency band has a large amount of bandwidth available, which is a key factor in enabling the capability of carrying higher data rates. LÄS MER
9. Capacity Control of Residential Heat Pump Heating Systems
Sammanfattning : Heat pumps used for space and sanitary hot water heating of residential buildings are increasingly popular in northern Europe. As they compete with other heating equipment and in order to limit the environmental impact of their use, it is very important that heat pumps are energy efficient. LÄS MER
10. Carbon Sink or Energy Source : Economic perspectives on future uses of forest resources in Sweden
Sammanfattning : Abstract Forests and the resources they offer have been important for the Swedish economy for a long time, and the forest industry remains a large part of the manufacturing industry even as the economy is becoming more service-based. Forests are also increasingly seen as an important source of biofuels that can be used to reduce the reliance on fossil fuels and to reach the target for a carbon neutral economy by the year 2050. LÄS MER