Sökning: "kerstin forsberg"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden kerstin forsberg.

1. 1. Crystallization of Metal Fluoride Hydrates from Mixed Acid Solutions

   Författare :Kerstin Forsberg; Åke Rasmuson; Alison Lewis; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crystallization; crystal growth; b-FeF3.3H2O; iron fluoride trihydrate; CrF3.3H2O; pickling; pickle bath; hydrofluoric acid; nitric acid; stainless steel; Chemical engineering; Kemiteknik;

   Sammanfattning : In this work crystal growth and nucleation of b-FeF3×3H2O and crystallization of chromium (III), iron (III) and nickel (II) fluoride hydrates from mixed acid (1-3 mol/kg HNO3 and 1-6 mol/kg free HF) have been investigated. The solubility of b-FeF3×3H2O has been determined in solutions of different hydrofluoric acid (1-7mol/ kg) and nitric acid (0-7mol/ kg) concentrations at 30, 40 and 50°C. LÄS MER

3. 2. Mobile Newsmaking

   Författare :Kerstin Forsberg; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Informatics; Mobile CSCW; Journalism; Ethnography; Empirically informed systems design; Handheld devices;

   Sammanfattning : The research reported in this thesis concerns the design of new and innovative IT support for mobile news journalism. News journalists often have to report events on topics that they do not know very well and with little time for preparation. News reporting is often conducted in the field, away from the stationary IT support. LÄS MER

4. 3. Recovery of Rare Earth Elements from an Apatite Concentrate

   Författare :Mahmood Alemrajabi; Kerstin Forsberg; Åke C. Rasmuson; Koen Binnemans; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rare earth elements; precipitation; nitrophosphate process; hollow fiber supported liquid membrane extraction; Chemical Engineering; Kemiteknik;

   Sammanfattning : Rare earth elements (REE) are a group of 17 elements including lanthanides, yttrium and scandium; which are found in a variety of classes of minerals worldwide. The criticality of the application, lack of high grade and economically feasible REE resources and a monopolistic supply situation has raised significant attention in recovery of these metals from low grade ores and waste materials. LÄS MER

5. 4. Predicting Electrochromic Smart Window Performance

   Författare :Johnny Degerman Engfeldt; Göran Lindbergh; Carina Lagergren; Kerstin Forsberg; James Gardner; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrochromic; Electrooptics; Smart windows; Prediction model; Large Area Device model;

   Sammanfattning : The building sector is one of the largest consumers of energy, where the cooling of buildings accounts for a large portion of the total energy consumption. Electrochromic (EC) smart windows have a great potential for increasing indoor comfort and saving large amounts of energy for buildings. LÄS MER

7. 5. Recovery of Rare Earth Elements from spent Nickel-Metal Hydride Batteries from Hybrid Electric Vehicles

   Författare :Kivanc Korkmaz; Kerstin Forsberg; Åke C. Rasmuson; Gisele Azimi; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Rare earth elements; hybrid electric vehicles; recycle; nickel; cobalt; precipitation; anti-solvent crystallization; selective roasting; Sällsynta jordartsmetaller; hybridelektriska fordon; återvinning; nickel; kobolt; utfällning; förträngningskristallisation; selektiv rostning; Chemical Engineering; Kemiteknik;

   Sammanfattning : Rare earth elements (REE) are a group of elements that are of critical importance in numerous technological applications, including “green technologies” such as wind turbines and hybrid car batteries. When the criticality of applications is considered, problems in supply has brought the option of effective secondary resource utilization into consideration. LÄS MER