Search for dissertations about: "alf"

Showing result 1 - 5 of 111 swedish dissertations containing the word alf.

  2. 1. Macro-Geometric Defects, A numerical and experimental study of springback and surface defects

    Author : Alf Andersson; Industriell Produktion; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Simulation; Sheet-metal forming; Finite element analysis; Information exchange; Springback; Surface defects; Drawbead; Process analyse; Optimisation; materialteknik; Materiallära; Material technology;

    Abstract : Today, shortened lead-times in the automotive industry have dramatically increased the need for more efficient development methods at every stage of the process development chain. In order to decrease the long lead-time for producing a forming tool, sheet-metal-forming simulation was introduced. READ MORE

  4. 2. Use of FE-analysis for predicting and verifying the design of an automotive component forming process with special regard to macro geometric defects

    Author : Alf Andersson; Industriell Produktion; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; information exchange; sheet-metal forminA simulation finite element analysis; springback surface defects Classflcation system and or Index term If any ;

    Abstract : This thesis includes four appended papers. The thesis describes the challenges and advantages of the use of FE-analysis in the design of a component forming process in the automotive industry. READ MORE

  5. 3. Regulation of cytoplasmic Ca2+ in pancreatic islet cells secreting glucagon and somatostatin

    Author : Alf Berts; Uppsala universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : .... READ MORE

  6. 4. Cooperatives and the state : partners in development? : a human resource perspective

    Author : Alf Carlsson; Stockholms universitet; []
    Keywords : Kooperation;

    Abstract : .... READ MORE

  7. 5. The balance between sex and asex: evolutionary genetic studies of reproductive variation in Allium vineale

    Author : Alf Ceplitis; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ontogeny; growth animal ; Allium vineale; Development biology; evolution; sexual reproduction; reproductive systems; embryology; Utvecklingsbiologi; ontogeni; embryologi; Genetics; cytogenetics; Genetik; cytogenetik;

    Abstract : Evolutionary theory predicts a disadvantage to sexual reproduction. This manifests itself either by the higher growth rate of asexual females in a dioecious species, or by the higher transmission rate of a gene conferring asexual female function to its carriers in a hermaphrodite species. READ MORE