Sökning: "Anders Karlsson"

Visar resultat 36 - 40 av 83 avhandlingar innehållade orden Anders Karlsson.

1. 36. Inverse Problems in Analytic Interpolation for Robust Control and Spectral Estimation

   Författare :Johan Karlsson; Anders Lindquist; Alberto Isidori; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nevanlinna-Pick Interpolation; Approximation; Model Reduction; Robust Control; Gap-robustness; Sensitivity Shaping; Entropy functional; Spectral Estimation; Weak*-topology; Monge-Kantorovic Transportation; Optimization; systems theory; Optimeringslära; systemteori;

   Sammanfattning : This thesis is divided into two parts. The first part deals with theNevanlinna-Pick interpolation problem, a problem which occursnaturally in several applications such as robust control, signalprocessing and circuit theory. We consider the problem of shaping andapproximating solutions to the Nevanlinna-Pick problem in a systematicway. LÄS MER

3. 37. Materials Development for Solid-State Dye-Sensitized Solar Cells

   Författare :Martin Karlsson; Anders Hagfeldt; Gerrit Boschloo; Lukas Schmidt-Mende; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The dye-sensitized solar cell (DSC) is a photovoltaic technology with the potential to efficiently and economically harvest and convert energy from the sun to electrical power. DSCs are built using abundant and low cost materials such as titanium dioxide (TiO2) and organic dye molecules. LÄS MER

4. 38. Ultra-wideband Antenna and Radio Front-end Systems

   Författare :Magnus Karlsson; Anders Rydberg; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless communication; ultra-wideband; radio communication; UWB bandwidth; antenna parallelism; Electrical engineering; Elektroteknik;

   Sammanfattning : The number of wireless communication applications increase steadily, leading to the competition for currently allocated frequency bands. Pressure on authorities around the world to permit communications in higher and wider frequency ranges to achieve higher wireless capacity than those existed in the past has resulted in several new specifications. LÄS MER

5. 39. Surface Science Studies of Metal Oxides Formed by Chemical Vapour Deposition on Silicon

   Författare :Patrik Karlsson; Anders Sandell; Håkan Rensmo; Marcus Bäumer; Uppsala universitet; []
   Nyckelord :Physics; chemical vapour deposition; high-k; metal oxides; silicon; dye-solid interface; metal organic; electron spectroscopy; scanning tunnelling microscopy; Fysik;

   Sammanfattning : For an electronic device well-designed interfaces are critical for the performance. Studies of interfaces down to an atomic level are thus highly motivated both from a fundamental and technological point of view. LÄS MER

7. 40. The influence of tool steel microstructure on galling

   Författare :Patrik Karlsson; Pavel Krakhmalev; Anders Gåård; Bojan Podgornik; Karlstads universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Galling; Microstructure; Material transfer; Tool steel; Stainless steel; Metall transfer; Materialteknik; Materials Engineering;

   Sammanfattning : In sheet metal forming (SMF) of materials such as stainless steels there is a major problem with transfer and accumulation of sheet material to the metal forming tool surface. The problem is known as galling; a sort of severe adhesive wear, which results in severe scratching of produced parts. LÄS MER