Sökning: "2020"

Visar resultat 11 - 15 av 3323 avhandlingar innehållade ordet 2020.

1. 11. Human Lean : Combining Sense of Coherence and Lean to achieve productivity and health

   Författare :Bengt Halling; Lars Bengtsson; Katarina Wijk; Jörgen Eklund; Bonnie Poksinska; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; barriers; health promotion; implementation; Lean; leadership; management; organizational change; productivity; sense of coherence; supportive factors; Technology and Health; Teknik och hälsa;

   Sammanfattning : The purpose of this thesis is to identify barriers to and supportive factors for Lean implementation and to investigate how application of the Sense of Coherence (SOC) theory combined with Lean philosophy may affect health and productivity. The thesis is based on five studies. LÄS MER

3. 12. Hydrophobization of cellulose for bio-based materials

   Författare :Tianxiao Huang; Monica Ek; Merima Hasani; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Betulin; Cellulose; Hydrophobicity; Mechanical properties; Polymer-matrix composites; Sustainability; Textile; Betulin; Cellulosa; Hydrofobicitet; Hållbarhet; Mekaniska egenskaper; Polymer-matriskompositer; Textil; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : Cellulosa, vilken är huvudkomponenten i växter förekommer rikligt i naturen, både på land och i havet. Cellulosabaserade material har i tusentals år använts av människan för dagliga förnödenheter som bränsle och konstruktionsmaterial. Cellulosa isolerades först av den franske forskaren Anselme Payen 1838. LÄS MER

4. 13. Development and application of rule- and learning-based approaches within the scope of neuroimaging : Tensor voting, tractography and machine learning

   Författare :Daniel Jörgens; Rodrigo Moreno; Örjan Smedby; Chunliang Wang; Jesper Andersson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tensor voting; tractography; deep learning; tractogram filtering; diffusion magnetic resonance imaging; tensorröstning; traktografi; djupinlärning; traktogramfiltrering; diffusions-MRT; Tillämpad medicinsk teknik; Applied Medical Technology;

   Sammanfattning : The opportunity to non-invasively probe the structure and function of different parts of the human body makes medical imaging an indispensable tool in clinical diagnostics and related fields of research. Especially neuroscientists rely on modalities like structural or functional Magnetic Resonance Imaging, Computed Tomography or Positron Emission Tomography to study the human brain in vivo. LÄS MER

5. 14. Secondary Interactions in Symmetric Double Bond Formation Catalysed by Molecular Ruthenium Complexes

   Författare :Oleksandr Kravchenko; Licheng Sun; Roger Alberto; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; homogeneous catalysis; transition metal catalysis; ruthenium catalyst; olefin metathesis; dynamic covalent chemistry; water oxidation; solar fuels; Ru-bda; secondary interactions; hydrophobic interactions; π-π stacking; homogen katalys; övergångsmetallkatalys; rutheniumkatalysator; olefinmetates; dynamisk kovalent kemi; vattenoxidation; solbränslen; Ru-bda; sekundära interaktioner; hydrofoba interaktioner; π-π stapling; Kemi; Chemistry;

   Sammanfattning : Chemistry has a tremendous impact on everyone’s life, although society does not always realize its power and ubiquity. In recent years, improved economy and sustainability of chemical processes has become a worldwide priority. LÄS MER

7. 15. Surface nanomechanical properties of hydrogels and coatings

   Författare :Gen Li; Per M. Claesson; Jan van Stam; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nanomechanical properties; nanotribology; nanowear; poly-HEMA; poly-NIPAm; Cellulose nanocrystals; AFM; Kemi; Chemistry;

   Sammanfattning : Characterizing mechanical and wear properties at the nanometer scale emerged as a fascinating and challenging topic in the last decades due to recognition of many interesting and unusual properties of nanomaterials. Due to recent developments of the atomic force microscopy (AFM) technique, it is now possible to measure nanomechanical properties and topography simultaneously, as well as performing and evaluating wear measurements at the nanometer scale. LÄS MER