Sökning: "bevis"

Visar resultat 1 - 5 av 173 avhandlingar innehållade ordet bevis.

  1. 1. Om informationstekniskt bevis

    Författare :Jonas Ekfeldt; Cecilia Magnusson Sjöberg; Christian Diesen; Erik Wennerström; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; accountability; audit trail; authenticity; computer evidence; criminal procedure; data quality; digital evidence; digital images; digital traces; electronic evidence; evaluation of evidence; evidence law; evidence terminology; evidential value; evidentiary facts; forensic evidence; handling of evidence; ict-evidence; informatics; information quality; information representation; information security; it-evidence; law and information technology; legal evidence; log; log analysis; machine identity; means of evidence; personal identity; reliability; representation information; screen dump; sources of error; the principle of free evaluation of evidence; traceability; validity; autenticitet; bevisfakta; bevismedel; bevishantering; bevisprövning; bevisrätt; bevisterminologi; bevisvärdering; datakvalitet; digitala bevis; digitala bilder; digitala spår; elektroniska bevis; elektroniska spår; felkällor; filer; forensiska bevis; ikt; informatik; informationskvalitet; informationsrepresentation; informationsteknik; informationstekniskt bevis; it-bevis; it-säkerhet; juridiskt bevis; logganalys; maskinell identitet; personell identitet; principen om fri bevisprövning; representationsinformation; riktighet; rättsinformatik; skärmdump; spårbarhet; straffprocessrätt; Law and Information Technology; rättsinformatik;

    Sammanfattning : Information technology evidence consists of a mix of representations of various applications of digital electronic equipment, and can be brought to the fore in all contexts that result in legal decisions. The occurrence of such evidence in legal proceedings, and other legal decision-making, is a phenomenon previously not researched within legal science in Sweden. LÄS MER

  3. 2. Modelling and Characterisation of the Martensite Formation in Low Alloyed Carbon Steels

    Författare :Jessica Gyhlesten Back; Lars-Erik Lindgren; Göran Engberg; Bevis Hutchinson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dilatometry; Hardness; EBSD; Martensite; Austenite; Kurdjumov-Sachs; Phase transformation; Modelling; Material Mechanics; Materialmekanik; Steel Forming and Surface Engineering;

    Sammanfattning : The current work contains experimental and theoretical work about the formation of martensite from the austenitic state of the steel Hardox 450. Simulation of rolling and subsequent quenching of martensitic steel plates requires a model that can account for previous deformation, current stresses and the temperature history, therefore dilatometry experiments were performed, with and without deformation. LÄS MER

  4. 3. Does Bainite form with or without diffusion? : The experimental and theoretical evidence

    Författare :Peter Kolmskog; Annika Borgenstam; John Ågren; Bevis Hutchinson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Carbon steels; Bainite; Bainitic ferrite; Widmanstätten ferrite; Microstructure; Microscopy; Thermodynamic modeling;

    Sammanfattning : With the increased interest in bainitic steels, fundamental understanding of the bainite transformationis of major importance. Unfortunately, the research on bainite has been hampered by an oldcontroversy on its formation mechanism. Over the years two quite different theories have developedclaiming to describe the bainite transformation i.e. LÄS MER

  5. 4. Dislocation density based material model applied in FE-simulation of metal cutting

    Författare :Dan Wedberg; Bevis Hutchinson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material Mechanics; Materialmekanik;

    Sammanfattning : Simulation based design enables rapid development of products with increased customer value in terms of accessibility, quality, productivity and profitability. However simulation of metal cutting is complex both in terms of numeric and physics. The work piece material undergoes severe deformations. LÄS MER

  7. 5. Formation of Bainite in Steels

    Författare :Jiaqing Yin; Annika Borgenstam; Bevis Hutchinson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fe-C alloys; Bainitic transformation; Proeutectoid ferrite; Upper bainite; Lower bainite; Morphology; Steels.; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : A systematic survey of morphology of bainite and proeutectoid ferrite was carried out in order to validate some old thoughts of bainite transformation mechanism. It is confirmed that there is no morphological evidence supporting a sharp change neither between Widmanstätten ferrite and the ferritic component of upper bainite, nor between upper and lower bainite. LÄS MER