Sökning: "pecs"

Visar resultat 1 - 5 av 10 avhandlingar innehållade ordet pecs.

1. 1. Law Enforcement Large-Scale IT Systems in EU Internal Security and Migration Policies

   Författare :Zoltán Dóczi; Erzsébet Sándor Szalayné; Hungary Pécs University of Pécs; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Schengen; large-scale IT systems; law enforcement; eu-LISA; smart borders information power; security deficit; facilitate travel;

   Sammanfattning : Borderless Europe raises the problem of increased security deficit. One of its segments may be counterbalanced by the control of immigration flow at the external borders that consists of three endeavours: the common border control policy, the common visa policy and the common asylum policy. LÄS MER

3. 2. Polyelectrolyte complexes : Preparation, characterization, and use for control of wet and dry adhesion between surfaces

   Författare :Caroline Ankerfors; Lars Wågberg; Regine von Klitzing; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : This thesis examines polyelectrolyte complex (PEC) preparation, adsorption behaviour, and potential use for control of wet and dry adhesion between surfaces. PEC formation was studied using a jet-mixing method not previously used for mixing polyelectrolytes. LÄS MER

4. 3. Polyelectrolyte complexes : their preparation, adsorption behaviour and effect on paper properties

   Författare :Caroline Ankerfors; Lars Wågberg; Monica Ek; Tom Lindström; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cellulose and paper engineering; Cellulosa- och pappersteknik;

   Sammanfattning : In this work, the formation of polyelectrolyte complexes (PECs) has been studied using a jet mixing method not previously used for mixing polyelectrolytes. The PECs were formed from two weak polyelectrolytes, i.e. LÄS MER

5. 4. Polyelectrolyte complexes of bottle brush copolymers : Solution and adsorption properties

   Författare :Shovsky Alexander; Per M. Claesson; Tommy Nylander; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Surface and colloid chemistry; Yt- och kolloidkemi;

   Sammanfattning : The aim of this thesis work was to systematically investigate the physico-chemical properties of polyelectrolyte complexes (PECs) formed by bottle brush and linear polyelectrolytes in solution and at solid / liquid interfaces. Electrostatic self-assembly of oppositely charged macromolecules in aqueous solution is a versatile strategy to construction of functional nanostructures with easily controlled properties. LÄS MER

7. 5. Specific Precipitation of Biomolecules Using Synthetic Polymers

   Författare :Per-Olof Wahlund; Bioteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; Polymerteknik; RNA; plasmid DNA; DNA; polyelectrolyte complexes; synthetic polymers; precipitation; affinity precipotation; Bioteknik; Polymer technology; biopolymers;

   Sammanfattning : Purification is a very important stage in biotechnological processes. The traditionally used precipitation techniques are generally nonspecific and thus one or more chromatographic steps are normally required. There is thus a need for new approaches to improve existing techniques. LÄS MER