Sökning: "Elektro- och systemteknik"
Visar resultat 1 - 5 av 428 avhandlingar innehållade orden Elektro- och systemteknik.
Sammanfattning : Cloud services, which provide online entertainment, enterprise resource management, tax filing, etc., are becoming essential for consumers, businesses, and governments. The key functionalities of such services are provided by backend systems in data centers. This thesis focuses on three fundamental problems related to management of backend systems. LÄS MER
Sammanfattning : The next generations of cellular networks are expected to provide explosive data rate transmissions and very low latencies. To meet such demands, one of the promising wireless transmissions candidates is in-band full-duplex communications, which enable wireless devices to simultaneously transmit and receive on the same frequency channel. LÄS MER
Sammanfattning : Gas detection is crucial in a wide range of fields and applications, such as safety and process control in the industry, atmospheric sciences, and breath diagnostics. Optical gas sensing offers some key advantages, compared to other sensing methods such as electrochemical and semiconductor sensing: high specificity, fast response, and minimal drift. LÄS MER
Sammanfattning : Computers have become essential to everyday life as much as electricity, communications and transport. That is evident from the amount of electricity we spend to power our computing systems. According to some reports it is estimated to be ≈ 7% of the total consumption worldwide. LÄS MER
Sammanfattning : In recent years the number of connected devices and the demand for high data-rates have been signiﬁcantly increased. This enormous growth is more pronounced by the introduction of the Internet of things (IoT) in which several devices are interconnected to exchange data for various applications like smart homes and smart cities. LÄS MER