Sökning: "Silver resistance"

Visar resultat 11 - 15 av 28 avhandlingar innehållade orden Silver resistance.

1. 11. Nanocomposites for Use in Sliding Electrical Contacts

   Författare :Benny André; Urban Wiklund; Staffan Jacobson; Kenneth Holmberg; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tribology; materials science; Materialvetenskap; Materials Science; Engineering Science with specialization in Materials Science; Teknisk fysik med inriktning mot materialvetenskap; Teknisk fysik med inriktning mot tribomaterial; Engineering Science with specialization in Tribo Materials;

   Sammanfattning : In this thesis nanocomposite materials for use in high performance electrical contacts are tested. Self mating silver as coatings on cupper substrates are the most used material combination in power connectors today. In this work two new concepts were tested. LÄS MER

3. 12. Graphene Based Inks for Printed Electronics

   Författare :Man Song; Zhi-Bin Zhang; Helena Grennberg; Anwar Ahniyaz; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Exfoliation; Graphene inks; Inkjet printing; Screen printing; GO Ag hybrid inks; Leuckart reaction; Reduction.; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

   Sammanfattning : The outstanding properties of graphene make it attractive ink filler for conductive inks which plays an important role in printed electronics. This thesis focuses on the ink formulation based on graphene and graphene oxide (GO).Liquid phase exfoliation of graphite is employed to prepare graphene dispersions, i.e. LÄS MER

4. 13. Molecular responses of plants to solar UV-B and UV-A radiation

   Författare :Luis Orlando Morales; Pedro José Aphalo; Mikael Brosché; Riitta Tegelberg; Nigel Paul; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi;

   Sammanfattning : Plant responses to solar ultraviolet radiation (UV, 280-400 nm) were assessed at different molecular levels using Betula pendula Roth (silver birch) and Arabidopsis thaliana (Arabidopsis) as model species in outdoor experiments to assess the possibly interacting roles of the UV-B and UV-A wavebands in acclimation to sunlight. Solar UV-B (280-315 nm) and UV-A (315-400 nm) irradiance was attenuated with plastic films. LÄS MER

5. 14. Screen Printed Large Area Sensors for Pressure Distribution Monitoring in Wheelchairs

   Författare :Jawad Ahmad; Johan Sidén; Henrik Andersson; Xavier Crispin; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : A sedentary lifestyle can induce health related problems including pressure ulcers. Pro­longed sitting inadequacies constitute a risk for pressure ulcer to many individuals, in particular people with disabilities and re­duced mobility. LÄS MER

7. 15. Development of Electrical Readouts for Amplified Single Molecule Detection

   Författare :Camilla Russell; Mats Nilsson; Björn Högberg; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Rolling circle amplification; metallization; electrical DNA detection; magnetic nanoparticles; dielectrophoresis; boranephosphonate modified nucleotides; DNA elongation; Biokemi; Biochemistry;

   Sammanfattning : Molecular diagnostics is a fast growing field with new technologies being developed constantly. There is a demand for more sophisticated molecular tools able to detect a multitude of molecules on a single molecule level with high specificity, able to distinguish them from other similar molecules. LÄS MER