Sökning: "ultraviolet"

Visar resultat 11 - 15 av 303 avhandlingar innehållade ordet ultraviolet.

1. 11. Thin-film ultraviolet light-emitting diodes realized by electrochemical etching of AlGaN

   Författare :Michael Alexander Bergmann; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; thin-film flip-chip; light-emitting diodes; UVB; AlGaN; thermocompression bonding; substrate removal; ultraviolet light; electrochemical etching; heterogeneous integration; LEDs;

   Sammanfattning : Ultraviolet (UV) light sources have a direct impact on everyone’s life. They are used to sterilize surfaces as well as for water purification. In addition, they are used in green houses to enhance health-promoting substances in plants, for phototherapy to treat skin diseases, for sensing and material curing. LÄS MER

3. 12. Chloroquine, ultraviolet radiation and the skin : clinical and experimental studies

   Författare :Gunilla Sjölin-Forsberg; Uppsala universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : .... LÄS MER

4. 13. Cataract from ultraviolet radiation in the mouse

   Författare :Linda Maren Meyer; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Lens; cataract; ultraviolet radiation; oxidative stress; mouse; light scattering;

   Sammanfattning : Cataract is defined as an opacification of the crystalline lens that results in visual impairment, Cataract is the number one cause of blindness in the world and there are currently no strategies to prevent it. Extraction of cataractogenous lenses is the most commonly performed surgical intervention in industrialized countries. LÄS MER

5. 14. Laser-Plasma Sources for Extreme-Ultraviolet Lithography

   Författare :Björn Hansson; KTH; []
   Nyckelord :fluid and plasma; radiation; electronics; electrical;

   Sammanfattning : This thesis describes the development and characterizationof a liquidxenon- jet laser-plasma source forextreme-ultraviolet (EUV) radiation. It is shown how thissource may be suitable for production-scale EUV lithography(EUVL). LÄS MER

7. 15. Vacuum Ultraviolet Scanning Photoelectron Microscopy, Instrumentation & Applications

   Författare :Ulf Johansson; Lunds universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Photoelectron Microscopy; Spectromicroscopy; Photoemission; Silicon; Oxide desorption; High-Tc superconductor; Physics; Ellipsoidal mirror; Fysik; Chemistry; Kemi; Fysicumarkivet A:1997:Johansson;

   Sammanfattning : This thesis describes the design and characterisation of a vacuum ultraviolet scanning photoelectron microscope as well as results from studies of laterally inhomogeneous surfaces. The instrument utilises synchrotron radiation from an undulator at the 550 MeV storage ring at the MAX-laboratory. LÄS MER