Sökning: "trap model"

Visar resultat 1 - 5 av 86 avhandlingar innehållade orden trap model.

1. 1. Nonlinear Modeling of FETs for Microwave Switches and Amplifiers

   Författare :Ankur Prasad; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HEMT; symmetry; small-signal model; field-plate.; GaAs; GaN; nonlinear model; trap model; symmetrical model; trap; model;

   Sammanfattning : The exponential growth in wireless systems require rapid prototyping of radio frequency circuits (RF) using computer-aided design (CAD) enabled models. Most of the RF circuits (e.g. switches, amplifiers, mixers, etc. LÄS MER

3. 2. The mechanical Paul trap in the upper secondary physics laboratory

   Författare :Sebastian Kilde Löfgren; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Physics education research; discipline-based education research; physics laboratory; design-based research; variation theory; model-based science; modelling; mechanical Paul trap; Paul trap.;

   Sammanfattning : In physics, toy models are often used in popular science contexts. Further, toy models have also been used to communicate some important principles of abstract phenomena qualitatively. One such example can be found in the 1989 Nobel laureate Wolfgang Paul’s Nobel lecture. LÄS MER

4. 3. Studies of Charge Transport Processes in Dye-sensitized Solar Cells

   Författare :Kristofer Fredin; Anders Hagfeldt; Mukundan Thelakkat; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; solar cell; mesoporous; dye-sensitized; model; simulation; electron transport; trap distribution; Physical chemistry; Fysikalisk kemi;

   Sammanfattning : Dye-sensitized solar cells (DSCs) have attained considerable attention during the last decade because of the potential of becoming a low cost alternative to silicon based solar cells. Although efficiencies exceeding 10% in full sunlight have been presented, major improvements of the system are however limited. LÄS MER

5. 4. Assessment and reduction of the conflicts between commercial fisheries and grey seals (Halichoerus grypus) in Swedish waters

   Författare :Arne Fjälling; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; conflict; fishery; grey seal; mitigate; predation; salmon; trap; konflikt; fiskeri; gråsäl; skadeförebyggande; predation; lax; fälla;

   Sammanfattning : Along with the recovery of the Baltic Sea grey seal population from very low figures in the late 1970 's, there were clear signs of a rapidly increasing conflict between grey seals and fisheries. The set trap fisheries for salmonids seemed to be suffering the worst, but such data as were available were bard to evaluate. LÄS MER

7. 5. Fluorescent Probes and Protein Misfolding: Methods and Applications

   Författare :Irem Nasir; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Protein misfolding; fluorophores; filter-trap; site-specific fluorophore labeling; amyloid-beta; microscopic rate constants; solvatochromic probes; alpha-synuclein; lipid vesicles; nanoparticles; protein adsorption;

   Sammanfattning : Protein misfolding is a frequently occurring event in living cells and without the quality control, the consequences are disasterous. In this thesis, we studied protein misfolding in vitro by employing a variety of fluorophores, to either detect the highly ordered aggregates of intrinsically disordered proteins/peptides or slight misfolding of a natively folded protein. LÄS MER