Sökning: "activity"
Visar resultat 26 - 30 av 9395 avhandlingar innehållade ordet activity.
26. Crystallization of Parabens : Thermodynamics, Nucleation and Processing
Sammanfattning : In this work, the solubility of butyl paraben in 7 pure solvents and in 5 different ethanol-water mixtures has been determined from 1 ˚C to 50 ˚C. The solubility of ethyl paraben and propyl paraben in various solvents has been determined at 10 ˚C. LÄS MER
27. Assessment of mobile radiometry data in radiological emergencies using Bayesian statistical methods
Sammanfattning : Nuclear technology and the use of radiation sources have been extensively adopted in the modern world. Despite that, a number of radiological accidents, significantly affecting population and the environment, has happened. Few of the most known are accidents in Chernobyl and Fukushima nuclear power plants. LÄS MER
28. The Activity Diamond - Modeling an Enhanced Accessibility
Sammanfattning : The purpose of the research presented in this thesis is to enhance the field of accessibility to include a multitude of perspectives. Based on cultural-historical activity theory (CHAT), it analyzes how human, artifactual and natural factors impact an individual’s possibilities to act in concrete situations that are part of a systemic whole. LÄS MER
29. Thermodynamic Aspects on Inclusion Composition and Oxygen Activity during Ladle Treatment
Sammanfattning : Two industrial studies and one set of lab scale trials have been done. In addition, a theoretical study has been done. The main focus has been on non metallic inclusion composition during the ladle refining operation in industrial steel production. Sampling has been done together with careful inclusion determination. LÄS MER
30. Att utveckla mellanstadieelevers kritiska och temporala tänkande : En lärandeverksamhetsteoretisk studie rörande hållbar utveckling
Sammanfattning : The aim of the study is to investigate what critical and temporal thinking can mean for younger students (aged 9-10) that requires the adoption of various perspectives in the context of sustainable urban planning, and how such knowing can be orchestrated in joint theoretical exploration work. A particular area of interest is the concept of contradictions (as used in activity theory) as a potential didactic tool for the subject, i. LÄS MER