Sökning: "reduced order systems"
Visar resultat 11 - 15 av 518 avhandlingar innehållade orden reduced order systems.
11. Secure Tactical Communications for Inter-Organizational Collaboration : The Role of Emerging Information and Communications Technology, Privacy Issues, and Cyber Threats on the Digital Battlefield
Sammanfattning : The development within the area of information and communications technology (ICT) has been rapid during the last couple of decades. Advancements in mobile technology, such as smartphones and other portable devices with embedded sensors, rapid expansion of communications infrastructure, and increased spectrum utilization, has had a major impact on civilian society, but increasingly also on professional organizations such as the Swedish Armed Forces. LÄS MER
12. Balancing variable renewable electricity generation using combined heat and power plants, large-scale heat pumps, and thermal energy storages in Swedish district heating systems
Sammanfattning : The global ambitions to hamper the greenhouse effect has led to ambitious targets for increasing renewable energy use. This, in combination with recent years' vast development of wind and solar power, implies that there will be significant amounts of variable renewable electricity (VRE) in future energy systems. LÄS MER
13. Emissions from realistic operation of residential wood pellets heating systems
Sammanfattning : Emissions from residential combustion appliances vary significantly depending on the firing behaviours and combustion conditions, in addition to combustion technologies and fuel quality. Although wood pellet combustion in residential heating boilers is efficient, the combustion conditions during start-up and stop phases are not optimal and produce significantly high emissions such as carbon monoxide and hydrocarbon from incomplete combustion. LÄS MER
14. Scaling Distributed Hierarchical File Systems Using NewSQL Databases
Sammanfattning : For many years, researchers have investigated the use of database technology to manage file system metadata, with the goal of providing extensible typed metadata and support for fast, rich metadata search. However, earlier attempts failed mainly due to the reduced performance introduced by adding database operations to the file system’s critical path. LÄS MER
15. Combined Assessment of Future Heat Supply and Demand - A Dynamic Systems Approach
Sammanfattning : In order to meet climate change mitigation targets, the use of fossil fuels has to be reduced and, eventually, be phased out in all sectors. As the heating sector occupies a central place in energy systems, especially in Nordic countries, it is affected by and affects other energy sectors. LÄS MER