Sökning: "time-decay constant"

Hittade 3 avhandlingar innehållade orden time-decay constant.

1. 1. Numerical solutions of the one-speed neutron transport equation in two-medium slabs and spheres

   Författare :Ninos Garis; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; time-decay constant; eigenvalue spectrum; Carlvik s method; two-medium systems; criticality factor; Neutron transport equation;

   Sammanfattning : .... LÄS MER

3. 2. Laser-Induced Incandescence for Soot Diagnostics: Theoretical Investigation and Experimental Development

   Författare :Jonathan Johnsson; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; premixed flat flames; fractal soot aggregates; laser-induced incandescence; soot; soot optical properties; soot absorption function; laser diagnostics; Fysicumarkivet A:2012:Johnsson;

   Sammanfattning : Laser-induced incandescence, LII, is a laser-diagnostic technique that can be used to measure the volume fraction and the sizes of soot particles suspended in a gas, such as within a combustion process or in its exhausts. The technique is based on the facts that the time-decay of the radiation from laser-heated soot particles is directly related to the particle size in the probed volume, and that the time-integrated radiation is related to the soot volume fraction. LÄS MER

4. 3. Studies of Surface and Interface Properties of 4H-SiC/Si02

   Författare :Chariya Virojanadara (Jacobi); Ulf Karlsson; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The thesis work is focused on photoemission studies of clean and oxidized 4H-SiC surfaces since 4H-SiC has been considered the most promising for device applications. Oxide layers can be easily grown by standard wet and dry oxidation methods but to obtain good interface properties (i.e. LÄS MER