Sökning: "Core"

Visar resultat 26 - 30 av 3248 avhandlingar innehållade ordet Core.

1. 26. Core-shell nanoparticle and renewable resource plasticizers for PVC

   Författare :Bo Yin; Minna Hakkarainen; Ulf Gedde; Ann Cornell; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PVC; nanocomposite; nanoparticle; core-shell; pasticizer; renewable resources; isosorbide; Polymer chemistry; Polymerkemi;

   Sammanfattning : .... LÄS MER

3. 27. Calculations of Clean and Adsorbate Covered Metal Surfaces and their Core-Level Photoemission Spectra

   Författare :Martin Birgersson; Matematisk fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chemical shifts; density functional theory; Condensed matter:electronic structure; electrical; magnetic and optical properties; supraconductors; magnetic resonance; relaxation; Atomic and molecular physics; spektroskopi; magnetisk resonans; supraledare; magnetiska och optiska ; egenskaper elektriska; spectroscopy; Kondenserade materiens egenskaper:elektronstruktur; core-level photoemission; single crystal surfaces; Atom- och molekylärfysik; Fysicumarkivet A:2002:Birgersson; core-hole degeneracies; metal surfaces; adsorption; molecular vibrations;

   Sammanfattning : The present thesis is concerned with the theoretical study of x-ray photoemission spectra from clean and adsorbate-covered metal surfaces. The main tool is ab initio density functional (DFT) total energy calculations. LÄS MER

4. 28. Laser-welded corrugated core steel sandwich panels for bridge application

   Författare :Peter Nilsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shear stiffness; corrugated core; laser-welding; joint geometry; sandwich panel;

   Sammanfattning : The design of steel bridge decks has remained unchanged since the introduction of orthotropic decks. Orthotropic decks are expensive to produce, mainly due to high labor-costs. LÄS MER

5. 29. Structural Design of Laser-Welded Sandwich Panels for Marine Applications

   Författare :Hans Kolsters; KTH; []
   Nyckelord :Sandwich; Laser welding; Web; Core; Stiffness; Elastic Buckling; Ultimate strength; Finite element analysis; Mechanical testing; Optimisation.;

   Sammanfattning : In shipbuilding the replacement of stiffened platestructures by laser-welded sandwich panels offers considerableadvantages for production as well as vessel operation. In viewof reduced weight and space requirements an area of particularinterest is the incorporation of an adhesively bonded core bywhich the stiffness and strength can be substantiallyincreased, and thermal-acoustic insulation can be integrated. LÄS MER

7. 30. Photoelectron Spectroscopy Studies of III-V Semiconductor Systems

   Författare :Henric Åsklund; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; low temperature MBE; GaAs 111 A; InAs; core-level; GaMnAs; photoelectron spectroscopy; MEE; GaAs; InP 110 :As; valence-band; core-exciton; diluted magnetic semiconductor; MBE; interface; III-V semiconductor; surface; InAs 111 A; thin films;

   Sammanfattning : Photoelectron spectroscopy has been used as a main tool to study a number of III-V semiconductor surfaces. This thesis includes studies of a surface reaction, As/InP(110), thin heteroepitaxial layers, InAs on GaAs(111)A and GaAs on AlAs(100), and a diluted magnetic semiconductor, Ga1-xMnxAs. LÄS MER