Sökning: "lera"

Visar resultat 11 - 15 av 35 avhandlingar innehållade ordet lera.

1. 11. Swelling and Microstructure of Nanoplatelet Systems

   Författare :Axel Thuresson; Beräkningskemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nanoplatelets; Model clay system; Coarse grained models; Statistical mechanics; MC simulations; MD simulations; SAXS; Cryo-TEM; Laponite; Montmorillonite; Swelling; Tactoid;

   Sammanfattning : Many clay minerals consist of charged nanoplatelets that swell in an aqueous solution. The swelling and the microstructure depend on the type of clay mineral but are also dependent on, for example, the ionic composition and the temperature of the solution. LÄS MER

3. 12. Bronze Age White Painted II ware in Cyprus : a reconsideration

   Författare :Barbro Johansson; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Cyprus; Middle Bronze Age; Late Bronze Age; White Painted II Ware;

   Sammanfattning : Uppsatsen behandlar keramikvaran "White Painted II Ware" daterad till tidigcypriotisk bronsålder III - mellancypriotisk bronsålder II på Cypern. Keramiken karaktäriseras av sin gulröda lera med röd bemålning. Drygt 100-talet kärl är kända, mest skålar, kannor och amforor, som presenteras i en katalog (corpus). LÄS MER

4. 13. Water diffusion and free volume in hydrophilic polymers

   Författare :Charlotte Trotzig; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; free volume; self-diffusion; degree of crystallinity; glass transition temperature; tensile storage modulus; surface tension; isotherm; HPMC; PEO; water; triacetin; clay; Macromolecular chemistry; dynamic mechanical analysis; Fysikalisk kemi; differential scanning calorimetry; nuclear magnetic resonance; positron annihilation; Makromolekylär kemi;

   Sammanfattning : During moisture uptake in polymers, the diffusion of the water molecules is believed to occur via unoccupied voids. These voids are called free volume cavities and their sizes are continuously altered when the moisture content in the polymer is enhanced. LÄS MER

5. 14. The Late etruscan votive heads from Tessennano. A study of production, distribution and sociohistorical context

   Författare :Martin Söderlind; Antikens kultur och samhällsliv; []
   Nyckelord :HUMANIORA; HUMANITIES; mould circulation; terracotta sarcophagi; Roman colonization; petrographic microscopy; Late etruscan; mould generation; mould; archetype; votive head; terracotta; traveling workshops; velum; Ancient history; Antikens och forntidens historia;

   Sammanfattning : The Late etruscan terracotta votive heads from Tessennano were found near a rural sanctuary about a hundred km to the North of Rome in 1956. Whereas the facial fronts are serially produced with moulds, the backs are handmade. LÄS MER

7. 15. Ground Improvement by Dry Deep Mixing Lime-Cement Column Panels as Excavation Support

   Författare :Razvan Ignat; Stefan Larsson; Sadek Baker; Sven Liedberg; Masaki Kitazume; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Many urban areas near the coastal regions of Sweden are characterized by post-glacial clay deposits with very low undrained shear strength and high compressibility. Column type ground improvement by the Deep Mixing, DM, method using a binder mixture of lime and cement is commonly used in areas with poor soil conditions due to its cost-effectiveness, predominantly for settlement reduction and to improve the stability of embankments. LÄS MER