Sökning: "digital holography"

Visar resultat 21 - 23 av 23 avhandlingar innehållade orden digital holography.

1. 21. High speed imaging analysis of laser welding

   Författare :Ingemar Eriksson; William O’Neill; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

   Sammanfattning : Laser welding is often considered a new and exotic manufacturing method even though it has been used in industrial applications for nearly fifty years. In the early years only a few special applications justified the high investment cost involved, but as the price of the laser sources has reduced, industrial interest in laser welding has increased. LÄS MER

3. 22. Shape and surface characterization using diffused light

   Författare :Sara Rosendahl; Pablo Ruiz; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

   Sammanfattning : Diffuse reflection from various surfaces have been studied using several different methods in order to draw conclusions about the surfaces. First of all the aim was to perform fast and accurate shape measurements of molded steel objects on-line in a production system. LÄS MER

4. 23. The mechanics of adhesion polymers and their role in bacterial attachment

   Författare :Johan Zakrisson; Magnus Andersson; Ramser Kerstin; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Pili; optical tweezers; bacterial adhesion; fimbriae; uncoiling;

   Sammanfattning : Bacterial resistance to antibiotics is increasing at a high rate in both developing and developed countries. To circumvent the problem of drug-resistant bacterial pathogens, we need to develop new effective methods, substances, and materials that can disarm and prevent them from causing infections. LÄS MER