Sökning: "Elektro- och systemteknik"

Visar resultat 16 - 20 av 486 avhandlingar innehållade orden Elektro- och systemteknik.

1. 16. Determining and Optimizing the Current and Magnetic Field Dependence of Spin-Torque and Spin Hall Nano-Oscillators : Toward Next-Generation Nanoelectronic Devices and Systems

   Författare :Seyed Amir Hossein Banuazizi; Johan Åkerman; Erik Wahlström; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; nanoelectronics; spintronics; nanomagnetism; ferromagnetic materials; microwave oscillators; magnetization dynamics; spin waves; giant magneto-resistance; spin Hall effect; spin-torque nano-oscillators; spin Hall nano-oscillators; numerical modeling; electrical characterization; microwave characterization; magnetic force microscopy.; Fysik; Physics; Teknisk materialvetenskap; Materials Science and Engineering; Informations- och kommunikationsteknik; Information and Communication Technology; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Spin-torque and spin Hall nano-oscillators are nanoscale devices (about 100 nm) capable of producing tunable broadband high-frequency microwave signals ranging from 0.1 GHz to over 65 GHz that several research groups trying to reach up to 200 - 300 GHz. LÄS MER

3. 17. Analysis and Optimization of Installed Antenna Performance

   Författare :Henrik Frid; B. Lars G. Jonsson; Hugh Griffiths; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : This Ph.D. thesis consists of six papers, which are labeled with roman numerals. Papers I-III have already been presented in a licentiate thesis published in2017, and this Ph. LÄS MER

4. 18. Integrated Community Energy Systems

   Författare :Binod Prasad Koirala; Mehrdad Ghandari; Rudi A. Hakvoort; Reinier Van der Veen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Distributed energy resources; community energy; local energy systems; institutional design; smart grids; energy system integration; community engagement; Energy Technology; Energiteknik; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Energy systems across the globe are going through a radical transformation as a result of technological and institutional changes, depletion of fossil fuel resources, and climate change. Accordingly, local energy initiatives are emerging and increasing number of the business models are focusing on the end-users. LÄS MER

5. 19. Enhancing IT Systems Cyber Resilience through Threat Modeling : Cyber Security Analysis of Enterprise Systems and Connected Vehicles

   Författare :Wenjun Xiong; Robert Lagerström; Simon Hacks; Jelena Zdravkovic; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cyber Security; Threat Modeling; Attack Simulations; IT Systems; Security Analysis; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Information technology (IT) systems are growing in complexity and are becoming more and more connected. Such connected systems can increase flexibility and productivity while also introducing security threats. LÄS MER

7. 20. Task Placement and Resource Allocation in Edge Computing Systems

   Författare :Sladana Josilo; György Dán; Ben Liang; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The evolution of wireless and hardware technology has led to the rapiddevelopment of a variety of mobile applications. Common to these applicationsis that they have low latency and high computational requirementsthat often cannot be fulfilled by individual devices due to their insufficientcomputational power, memory and battery capacity. LÄS MER