Sökning: "flexible structures"

Visar resultat 36 - 40 av 271 avhandlingar innehållade orden flexible structures.

1. 36. Structural Studies of Flexible Biomolecules and a DNA-binding Protein

   Författare :Tariq Massad; Pål Stenmark; Cheryl Arrowsmith; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Maximum entropy; motilin; DNA-binding proteins; Karplus equation; disaccaride; direct repeats; Structural biology; Strukturbiologi; Biophysics; biofysik;

   Sammanfattning : The knowledge of the three-dimensional structures of proteins and polypeptides is essential to understand their functions. The work shown in this thesis has two objectives. LÄS MER

3. 37. Functionalization and Characteization of Carbon-based Nanomaterials

   Författare :Nan Wang; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; carbon nanomaterials; graphene; hybrid nanowires; flexible electronics; functionalization;

   Sammanfattning : Surface functionalization of nanomaterials opens up unlimited possibilities to combine the distinct properties of inorganic, organic, or even bioactive components in a single material and bring novel functionalities in a wide range of applications ranging from electronics to catalysts and medicine carriers. So far, a variety of organic and inorganic nanomaterials have been explored to construct different functionalized nanomaterials. LÄS MER

4. 38. Soil-Steel Composite Bridges : Research advances and application

   Författare :Amer Wadi; Raid Karoumi; Lars Pettersson; Ian D. Moore; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flexible culvert; Soil‒steel composite bridge; Sloping terrain; Swedish design method; Finite element model; Ultimate capacity; Avalanche load; Failure load; Low soil cover; Failure mechanism; Long-span; Byggvetenskap; Civil and Architectural Engineering;

   Sammanfattning : Soil-steel composite bridges are considered competitive structures being an economical alternative to similar span concrete bridges. This frequently stimulates practitioners to push their design limits and expand the different areas of application including their performance in sloping terrain. LÄS MER

5. 39. Towards Understanding of Selectivity & Enantioconvergence of an Epoxide Hydrolase

   Författare :Åsa Janfalk Carlsson; Mikael Widersten; Uwe T. Bornscheuer; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Epoxide hydrolase; Epoxide; Enantioselectivity; Regioselectivity; Enantioconvergence; Crystal structures; Biocatalysis; Immobilization; Transient kinetics; CASTing; Directed evolution; Biokemi; Biochemistry;

   Sammanfattning : Epoxide hydrolase I from Solanum tuberosum (StEH1) and isolated variants thereof has been studied for mapping structure-function relationships with the ultimate goal of being able to in silico predict modifications needed for a certain activity or selectivity. To solve this, directed evoultion using CASTing and an ISM approach was applied to improve selectivity towards either of the enantiomeric product diols from (2,3-epoxypropyl)benzene (1). LÄS MER

7. 40. Ink-jet printing of thin film transistors based on carbon nanotubes

   Författare :Jiantong Li; Shi-Li Zhang; Håkan Olin; Muhammad Ashraful Alam; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Single-walled carbon nanotube; thin film transistor; ink-jet printing; Monte Carlo simulation; stick percolation; composite network; flexible electronics; Electronics; Elektronik;

   Sammanfattning : The outstanding electrical and mechanical properties of single-walled carbon nanotubes (SWCNTs) may offer solutions to realizing high-mobility and high-bendability thin-film transistors (TFTs) for the emerging flexible electronics. This thesis aims to develop low-cost ink-jet printing techniques for high-performance TFTs based on pristine SWCNTs. LÄS MER