Sökning: "Fredrik KTH"

Visar resultat 1 - 5 av 235 avhandlingar innehållade orden Fredrik KTH.

  1. 1. Designing tools forconviviality : A design led exploration of ParticipatoryActivity Mapping

    Författare :Fredrik Sandberg; Sara Ilstedt; Bo Westerlund; Stefan Holmlid; KTH; []
    Nyckelord :HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; Convivial tool; design tools; service design; participatory design; space in between; heterogeneous; participatory activity mapping; absent; othering; Design tools; Service design; Participatory design; Space in-between; Heterogeneous; Participatory Activity Mapping; Absent; Othering;

    Sammanfattning : This thesis is a report of research work that contributes to the understandingof so-called convivial tools. It does this by describing how small enterprisesuse Participatory Activity Mapping as an approach to changing, as well ascaring about, people and the things that hold their work situations together. LÄS MER

  3. 2. Structural behaviour of shotcrete in hard rock tunnels

    Författare :Andreas Sjölander; Anders Ansell; Richard Malm; Fredrik Johansson; Eivind Grøv; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shotcrete; structural behaviour; material models; rock support; bond strength; fibre-reinforcement; Concrete Structures; Betongbyggnad; tunnel support;

    Sammanfattning : Tunnels in hard and jointed rock are normally excavated in an arch shape to enable the rock mass to support its weight. Since the beginning of the 1980's, fibre reinforced shotcrete (FRS) in combination with rock bolts have been the dominating support method for hard rock tunnels. LÄS MER

  4. 3. New Concepts for Dielectrophoretic Separations and Dielectric Measurements of Bioparticles

    Författare :Fredrik Aldaeus; Johan Roeraade; Peter Stilbs; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Analytisk kemi;

    Sammanfattning : This thesis presents two new concepts for separation of micro particles using dielectrophoresis, demonstrated by calculated examples, as well as a new method for obtaining dielectric data on living cells. The thesis is based on four papers. LÄS MER

  5. 4. On cash flow valuation

    Författare :Fredrik Armerin; KTH; []
    Nyckelord :;

    Sammanfattning : A fundamental fact in finance and economics is that moneyhas a time value, meaning that if we want to value an amount ofmoney we get at some future date we should discount the amountfrom the future date back to today. When facing a stream ofcash flows occurring at di®erent times we discount each ofthe cash flows using suitable discount rates and then sum thecontributions. LÄS MER

  7. 5. Risks Related to the Use of Software Tools when Developing Cyber-Physical Systems : A Critical Perspective on the Future of Developing Complex, Safety-Critical Systems

    Författare :Fredrik Asplund; Martin Törngren; Jad El-Khoury; John McDermid; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automation; Certification; Process Risks; Safety; Safety-Critical; Standards; Support Environments; Tool Integration; Machine Design; Maskinkonstruktion;

    Sammanfattning : The increasing complexity and size of modern Cyber-Physical Systems (CPS) has led to a sharp decline in productivity among CPS designers. Requirements on safety aggravate this problem further, both by being difficult to ensure and due to their high importance to the public. LÄS MER