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Visar resultat 1 - 5 av 195 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Diffusion in dilute solutions : an experimental study with special reference to the effect of size and shape of solute and solvent molecules

   Författare :Thomas C. Amu; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : .... LÄS MER

3. 2. Concentrate or dilute contaminants? : Strategies for Swedish wood waste

   Författare :Joakim Krook; Anders Mårtensson; Stefan Anderberg; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Management strategies; environmental aspects; heavy metals; separation; regulation; market interactions; actors; avfall; miljö; sortering; föroreningar; tungmetaller; impregnerat trä; styrmedel; kundkrav; lagstiftning; Environmental engineering; Miljöteknik;

   Sammanfattning : This thesis aims to assess the environmental consequences of management strategies for wood waste in Sweden. There is a special focus on separation strategies and in what way such measures influence environmental aspects such as the presence of heavy metals in the waste. LÄS MER

4. 3. Direct H2O2 synthesis over dilute PdAu alloys

   Författare :Rasmus Svensson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; kinetic Monte Carlo; H2O2 synthesis; metal-water interface; dynamics; kinetic modeling; dilute alloys; catalysis; density functional theory;

   Sammanfattning : Heterogeneous catalysis is crucial in a range of technological and industrial processes. Depending on the composition of the catalyst and the reaction conditions, it is possible to steer the activity and the selectivity towards the desired products. LÄS MER

5. 4. Dilute Nitride Lasers and Spectrally Engineered Semiconductor Laser Resonators

   Författare :Göran Adolfsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; single mode laser; transfer matrix method; threshold current; InGaAs; GaAs; multiple quantum wells; dilute nitrides; two-color laser; GaInNAs; Semiconductor lasers; molecular beam epitaxy; characteristic temperature; temperature dependence; ambipolar diusion; Fabry-Perot resonator; spectral engineering;

   Sammanfattning : The first part of this thesis deals with long wavelength (1.2-1.3 um) InGaAs(N)multiple quantum-well (QW) lasers grown on GaAs, with the aim of understandingand improving their threshold and temperature characteristics. The epitaxialmaterial is grown by molecular beam epitaxy (MBE). LÄS MER

7. 5. Optical characterization of dilute nitride semiconductors and related quantum structures

   Författare :Morteza Izadifard; G. Yu. Rudko; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dilute nitrides; optoelectronics; photonics; Optical physics; Optisk fysik;

   Sammanfattning : Dilute nitrides (i.e. LÄS MER