Sökning: "Hårdvara"

Visar resultat 21 - 25 av 44 avhandlingar innehållade ordet Hårdvara.

1. 21. No Hypervisor Is an Island : System-wide Isolation Guarantees for Low Level Code

   Författare :Oliver Schwarz; Mads Dam; Christian Gehrmann; Gerwin Klein; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Platform Security; Hypervisor; Formal Verification; Theorem Proving; HOL4; DMA; Peripheral Devices; Instruction Set Architectures; ISA; Information Flow; Boot; Computer Science; Datalogi;

   Sammanfattning : The times when malware was mostly written by curious teenagers are long gone. Nowadays, threats come from criminals, competitors, and government agencies. Some of them are very skilled and very targeted in their attacks. LÄS MER

3. 22. High Frequency Microwave and Antenna Devices based on Transformation Optics and Glide-Symmetric Metasurfaces

   Författare :Mahsa Ebrahimpouri; Oscar Quevedo-Teruel; Nader Engheta; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Glide Symmetry; Transformation Optics; Lens Antennas; High Frequency; Microwave Devices; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The new generation of wireless communication networks intends to support data rate of Gbit/s. One solution to make it possible is to move upwards in frequency range to employ the unused spectrum in mm-wave frequencies. LÄS MER

4. 23. GNSS hardware biases in code and carrier phase observables

   Författare :Martin Håkansson; Milan Horemuz; Anna B. O. Jensen; Lambert Wanninger; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GNSS; GNSS positioning; hardware biases; phase biases; multi-GNSS; GPS; GLONASS; Galileo; BeiDou; satellite dependency; characterization; android; mass market; Group delay variations; nadir dependence; ionosphere modeling; ionospheric tomography; Geodesy and Geoinformatics; Geodesi och geoinformatik; Geodesi; Geodesy;

   Sammanfattning : GNSS hardware biases appear in code and phase observations, and originates both from the receiver and satellite hardware. The presence of biases in GNSS observations might affect the accuracy in precise GNSS positioning applications, and might also be of relevance in other GNSS applications. LÄS MER

5. 24. High Performance Computing for the Optimization of Radiation Therapy Treatment Plans

   Författare :Felix Liu; Stefano Markidis; Artur Podobas; Albin Fredriksson; David Keyes; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HPC; Radiation Therapy; Optimization; Numerical Linear Algebra; Interior Point Methods; Datalogi; Computer Science;

   Sammanfattning : Radiation therapy is a clinical field in which computer simulations play a crucial role. Before patients undergo radiation therapy, an individual treatment plan for each patient needs to be created based on the specifics of their case (a process often referred to as \emph{treatment planning}). LÄS MER

7. 25. User Modeling for Adaptive Virtual Reality Experiences : Personalization from Behavioral and Physiological Time Series

   Författare :Luis Quintero; Uno Fors; Lijffijt Jefrey; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; virtual reality; VR; machine learning; ML; user modeling; personalization; wearable; heart rate; HRV; biosensors; movement; behavioral; user experience; UX; spatial computing; metaverse; extended reality; XR; data- och systemvetenskap; Computer and Systems Sciences;

   Sammanfattning : Research in human-computer interaction (HCI) has focused on designing technological systems that serve a beneficial purpose, offer intuitive interfaces, and adapt to a person's expectations, goals, and abilities. Nearly all digital services available in our daily lives have personalization capabilities, mainly due to the ubiquity of mobile devices and the progress that has been made in machine learning (ML) algorithms. LÄS MER