Sökning: "strand exchange"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden strand exchange.

1. 1. Design, testing and analysis of journal bearings for construction equipment

   Författare :Henrik Strand; Sören Andersson; Arto Lehtovaara; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Contact Mechanics; Finite Element; Grease; Journal Bearing; Lubrication; Replica Technique; Test Apparatus; Tribology; Wear; Mechanical manufacturing engineering; Mekanisk tillverkningsteknik;

   Sammanfattning : Grease-lubricated journal bearings present a common challenge for construction equipment manufacturers in the world. The common design methodology is based on empirical data and has worked very well historically because the market and governments have accepted that bearings in construction equipment need frequent lubrication and exchange of worn parts. LÄS MER

3. 2. European Black Grouse : MHC Genetic Diversity and Population Structure

   Författare :Tanja Strand; Jacob Höglund; Helena Westerdahl; David S. Richardson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Major Histocompatibility Complex; BLB; balancing selection; concerted evolution; bottleneck; fragmentation; 3 UTR; Biologi med inriktning mot populationsbiologi; Biology with specialization in Population Biology;

   Sammanfattning : Black grouse Tetrao tetrix is a bird species composed of large, continuous as well as severely reduced and fragmented populations, making it an optimal species to investigate how genetic diversity is affected by habitat fragmentation. I have focused on genetic diversity in the Major Histocompatibility Complex (MHC) to measure the ability of the black grouse to respond to environmental changes. LÄS MER

4. 3. DNA strand exchange and hydrophobic interactions between biomolecules

   Författare :Bobo Feng; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ATP synthase; DNA; membrane proteins; linear dichroism; Hydrophobic interactions; self-assembly; strand exchange; nanotechnology; liposomes;

   Sammanfattning : The role of hydrophobic interactions in DNA strand exchange has been studied using fluorescence-labeled DNA oligomers in a FRET assay. Strand exchange was found to be accelerated in the presence of polyethylene glycol, which provides a crowded and hydrophobic environment possibly mimicking that of the catalytically active recombinase-DNA complexes. LÄS MER

5. 4. Samtal i butik : Språklig interaktion melllan biträden och kunder

   Författare :Ingela Tykesson-Bergman; Hans Strand; Olle Josephson; Viveka Adelswärd; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; service encounter; activity type; pragmeme; politeness; conversational contract; conversation analysis; interactional routine; small talk; shop assistant; talk at work; Swedish; Scandinavian languages; Nordiska språk;

   Sammanfattning : The subject of this study is language use in a special type of social activity: the exchange of goods, services and information in a commercial setting. The main aim is to gain an understanding of the work that shop assistants perform using language. In the analysis, the focus is on verbal routine work. LÄS MER

7. 5. Burial textiles : Textile bits and pieces in central Sweden, AD 500–800

   Författare :Anita Malmius; Birgit Arrhenius; Kerstin Lidén; Gunilla Eriksson; Eva Andersson Strand; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; textiles; boat-graves; Merovingian Period; Vendel; Valsgärde; Birka; elite burials; archaeology; Sweden; Migration Period; Archaeological Science; laborativ arkeologi;

   Sammanfattning : This thesis concerns the role and use of archaeological textiles (AT) deposited in inhumation and cremation burials in Sweden dating from 500–800 AD. The AT are studied in their burial context, including all other grave goods, emphasizing that they were as important as a source for understanding society in prehistory as they are today. LÄS MER