Sökning: "background material"

Visar resultat 11 - 15 av 802 avhandlingar innehållade orden background material.

1. 11. Interactions between iron oxides and the additives quartzite, calcite and olivine in magnetite-based pellets

   Författare :Pär Semberg; Lawrence Hooey; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

   Sammanfattning : In the present study, magnetite pellets with large amounts of the additives olivine, calcite and quartzite were isothermally reduced in a tubular furnace to study the interaction between iron oxides and the additives. A first attempt at using exaggerated amounts of additives was made in order to enable analyses of phases that do not otherwise occur in sufficient amounts for Xray diffraction and EDS-analyses. LÄS MER

3. 12. Transporting highly concentrated slurries with centrifugal pumps : the thickened minerals tailings example

   Författare :Thord Wennberg; Magnus Fahlgren; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

   Sammanfattning : New technologies are continuously considered for the handling and deposition of tailings. With thickened tailings only a fraction of water used conventionally reaches the disposal area, thus limiting sizes of water holding dam facilities and areas to be rehabilitated. Heat may also be recovered with direct water circulation from the thickening. LÄS MER

4. 13. Anti-Dumping Law of WTO/GATT and EC: Gradual Evolution of Anti-Dumping Law in Global Economic Integration

   Författare :Wenxi Li; Juridiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; like products; domestic industry; threat of material injury; material injury; export price; normal value; Basic Regulation; GATT Anti-Dumping Code; GATT; dumping; anti-dumping law; anti-dumping procedure; global economic integration; European law; EU-rätt;

   Sammanfattning : The aim of this study is to demonstrate and evaluate the current anti-dumping law as formed by the WTO/GATT law (GATT law) and implemented by the EC law against the background of global economic integration. Over centuries, international trade has involved a controversial business behaviour, “dumping”. LÄS MER

5. 14. Silicon Nanoribbon FET Sensors : Fabrication, Surface Modification and Microfluidic Integration

   Författare :Roodabeh Afrasiabi; Jan Linnros; Michel Calame; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : Over the past decade, the field of medical diagnostics has seen an incredible amount of research towards the integration of one-dimensional nanostructures such as carbon nanotubes, metallic and semiconducting nanowires and nanoribbons for a variety of bio-applications. Among the mentioned one-dimensional structures, silicon nanoribbon (SiNR) field-effect transistors (FET) as electro-chemical nanosensors hold particular promise for label-free, real-time and sensitive detection of biomolecules using affinity-based detection. LÄS MER

7. 15. Improved Material Models for High Strength Steel

   Författare :Rikard Larsson; Larsgunnar Nilsson; Linköpings universitet; []
   Nyckelord :Plastic anisotropy; non-linear strain paths; mixed isotropic-kinematic hardening; isotropic-distortional hardening; dynamic strain ageing; static strain ageing; marten- sitic transformation;

   Sammanfattning : The mechanical behaviour of the three advanced high strength steel grades, Docol 600DP, Docol 1200M and HyTens 1000, has been experimentally investigated under various types of deformation, and material models have been developed, which account for the experimentally observed behaviour.Two extensive experimental programmes have been conducted in this work. LÄS MER