Sökning: "trap"

Visar resultat 1 - 5 av 336 avhandlingar innehållade ordet trap.

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. Dismantling the Conflict Trap : Essays on Civil War Resolution and Relapse

   Författare :Joakim Kreutz; Magnus Öberg; Mats Hammarström; Halvard Buhaug; Barbara F. Walter; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; civil war; conflict resolution; conflict recurrence; diversionary war; ripe moment; natural resources; peace agreement; victory; war termination; Peace and Conflict Research; Freds- och konfliktforskning;

   Sammanfattning : Countries that have experienced civil war suffer a greater risk for new conflict than countries with no prior history of civil war. This empirical finding has been called a conflict trap where the legacy of previous war - unsolved issues, indecisive outcomes, and destruction – leads to renewed fighting. LÄS MER

5. 4. SMILETRAP I / II : Precision Improvements in Penning-Trap Mass-Spectrometry

   Författare :Markus Suhonen Linné; Reinhold Schuch; Lutz Schweikhard; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Penning trap; Mass spectrometers; Instrumentation and methods for time-of-flight TOF spectroscopy; Highly charged ions; Atomic physics; Atomfysik; fysik; Physics;

   Sammanfattning : This thesis describes the final precision mass measurements with SMILETRAP I, where a relative precision of < 1 ppb (10-9) was reached routinely, and the development of SMILETRAP II, aiming for measurements with < 0.1 ppb relative precision. LÄS MER

7. 5. 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