Search for dissertations about: "William Ion"

Showing result 1 - 5 of 15 swedish dissertations containing the words William Ion.

2. 1. Two facets of Innovation in Engineering Education : The interplay of Student Learning and Curricula Design

   Author : Anders Berglund; Sofia Ritzén; Martin Edin Grimheden; Margareta Norell Bergendahl; William Ion; KTH; []
   Keywords : Engineering education; innovation; design; learning elements; student; change; Ingenjörsutbildning; innovation; design; lärandeelement; student; förändring;

   Abstract : This thesis covers two main perspectives ofinnovation; first, innovation is regarded as an outcome-related mechanism wherelearning is expressed through artefact presentations at the end of adevelopment process; second, innovation comprises a change mechanism in theprocess of student learning, influencing educators to reconsider new methods andpractices. Building on qualitative data from engineering design courses, theaim has been to explore how learning elements in engineering educationinfluence students during early-phase innovation. READ MORE

4. 2. High-Quality Perovskite Films for Efficient and Stable Light-Emitting Diodes

   Author : Heyong Wang; Feng Gao; Olle Inganäs; Xiaoke Liu; Ifor David William Samuel; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; perovskite light-emitting diodes; efficiency; stability; growth process; ion migration;

   Abstract : Metal halide perovskites have attracted significant attention for light-emitting applications, because of their excellent properties, such as high photoluminescence quantum yields (PLQYs), good charge mobility, narrow emission bandwidth, readily tunable emission spectra ranging from ultraviolet to near-infrared, and solution processability. Since the first room-temperature perovskite-based light-emitting diodes (PeLEDs) reported in 2014, tremendous efforts have been made to promote the efficiencies of PeLEDs, including theoretical simulation, materials design, and device engineering. READ MORE

5. 3. New strategies for characterizing Prussian blue analogues

   Author : Ida Nielsen; William Robert Brant; Andrew Kentaro Inge; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Prussian blue analogues; positron annihilation lifetime spectroscopy; Mössbauer spectroscopy; sodium-ion batteries; neutron diffraction; octahedral tilting; sodium iron hexacyanoferrate; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

   Abstract : Prussian blue analogues (PBAs), AxM[M’(CN)6]1–y·zH2O, are used in many different applications, such as energy storage, due to their tunable composition and structural diversity. To understand the material properties, it is important to accurately determine the composition and atomic structure of these materials. READ MORE

6. 4. New approaches to moisture determination in complex matrices based on the Karl Fischer Reaction in methanolic and non-alcoholic media

   Author : William Larsson; Anders Cedergren; Heinz-Dieter Isengard; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Karl Fischer titration; non-alcoholic reagent; trace moisture determination.; Analytical chemistry; Analytisk kemi;

   Abstract : Vattenhaltsbestämning är av stor vikt i många sammanhang. T.ex. kan vattenhalten påverka utbytet av en kemisk syntes, eller ha negativ inverkan på hållbarheten av läkemedel och livsmedel. READ MORE

7. 5. Synthesis–Structure–Property Relationships in Li- and Mn-rich Layered Oxides

   Author : Ashok S. Menon; William Brant; Montserrat Casas-Cabanas; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Li- and Mn-rich layered oxides; Li-ion battery cathode materials; synthesis–property relationships; stacking faults; anionic redox materials;

   Abstract : The commercialisation of Li-ion batteries over the last decade has provided additional impetus for the improvement of existing energy storage technologies. Towards this, a major portion of the global efforts includes exploratory research aimed at the development of new material chemistries. READ MORE