Search for dissertations about: "20"

Showing result 1 - 5 of 5297 swedish dissertations containing the word 20.

  2. 1. Surface integrity on post processed alloy 718 after nonconventional machining

    Author : Jonas Holmberg; Tomas Beno; Anders Wretland; Johan Berglund; Mikael Olsson; RISE; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alloy 718; Non-conventional machining; post processing; surface integrity; Microstructure; Residual stress; Electron back scattering diffraction; Material removal rate; Manufacturing; Surface and Joining Technology; Bearbetnings-; yt- och fogningsteknik; Production Technology; Manufacturing and materials engineering;

    Abstract : There is a strong industrial driving force to find alternative production technologies in order to make the production of aero engine components of superalloys even more efficient than it is today. Introducing new and nonconventional machining technologies allows taking a giant leap to increase the material removal rate and thereby drastically increase the productivity. READ MORE

  4. 2. Visual thinking, visual speech : a semiotic perspective on meaning-making in molecular life science : how visualizations, metaphors and help-words contribute to the formation of knowledge about proteins among upper secondary and tertiary level students

    Author : Carl-Johan Rundgren; Lena A E Tibell; Richard Hirsch; Ute Harms; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Molecular life science; visualizations; metaphors; help-words; Subject didactics; Ämnesdidaktik;

    Abstract : Molecular life science has become one of the fastest-growing fields of scientific and technical innovation. An important issue for tomorrow’s education is to meet the challenge posed by various facets of molecular life science. READ MORE

  5. 3. Supporting Learning and Teaching of Chemistry in the Undergraduate Classroom

    Author : Ilana A. Manneh; Karim Hamza; Carl-Johan Rundgren; Lars Eriksson; Ingo Eilks; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; undergraduate chemistry education; learning and teaching processes; didactic triangle; chemical bonding; tutor-student interaction; practical epistemology analysis; continuity; progression; purposes; naturvetenskapsämnenas didaktik; Science Education;

    Abstract : There is agreement in research about the need to find better ways of teaching chemistry to enhance students’ understanding. This thesis aims to contribute to the understanding of how we better support teaching and learning of undergraduate chemistry to make it meaningful and intelligible for students from the outset. READ MORE

  6. 4. Through a post-political gaze : on the ideological loading of democracy in the coverage of Chávez's Venezuela

    Author : Ernesto Abalo; Leonor Camauër; Ulrika Olausson; Rune Ottesen; Örebro universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Ideology; Democracy; Hegemony; Journalism; International journalism; Post-politics; Critical discourse analysis; Media studies; Venezuela; Media and Communication Studies; Medie- och kommunikationsvetenskap;

    Abstract : Rooted in ideology critique, this dissertation studies the construction of democracy in the coverage of Venezuela during the era of President Hugo Chávez. The aim of this endeavor is twofold. First, the dissertation aims to understand the relationship between ideology and the construction of democracy in journalism on foreign political phenomena. READ MORE

  7. 5. The morphological and chemical basis of the initiation of calcification in the regenerating shell of Helix pomatia (L.)

    Author : Anna Abolinfl-Krogis; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE