Sökning: "björn eriksson"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden björn eriksson.

  1. 1. Dynamic Decades: A micro perspective on late nineteenth century Sweden

    Författare :Björn Eriksson; Lund University.; Lunds universitet.; Lund University.; Lunds universitet.; [2015]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; microeconomic data; industrialization; female employment; competition; firm survival; social mobility; migration;

    Sammanfattning : This dissertation examines various aspects of mobility during the closing decades of the nineteenth century in Sweden. In terms of the pace and magnitude of the changes taking place during this industrial breakthrough, no other period in Swedish history compares. LÄS MER

  2. 2. Effects and nature on buffer ion enrichment in electric field assisted liquid chromatography

    Detta är en avhandling från Karlstad : Karlstad University Studies

    Författare :Björn Eriksson; [2004]
    Nyckelord :;

    Sammanfattning : The aim of this study has been to investigate the properties and limitations of the separation technique electric field assisted capillary liquid chromatography (EF-LC). The electric current in the EF-LC has shown to be a limiting factor and has been the focus of the study. LÄS MER

  3. 3. Electrochemical evaluation of new materials in polymer electrolyte fuel cells

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Björn Eriksson; KTH.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel cell; Pt-REM; Alloy catalyst; Multi walled carbon nanotubes; Bipolar plates; Water transport; Bränslecell; Pt-REM; Legerad katalysator; Flerväggade kolnanorör; Bipolära plattor; Vattentransport; Chemical Engineering; Kemiteknik;

    Sammanfattning : Polymer electrolyte fuel cells (PEFC) convert the chemical energy in hydrogen to electrical energy and heat, with the only exhaust being water. Fuel cells are considered key in achieving a sustainable energy sector. The main obstacles to wide scale commercialization are cost and durability. LÄS MER

  4. 4. Om den sociologiska analysen av kunskap : några steg i riktning mot ett kunskapssociologiskt paradigm

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Björn Eriksson; Uppsala universitet.; [1972]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SOCIAL SCIENCES Social sciences Sociology; SAMHÄLLSVETENSKAP Socialvetenskap Sociologi;

    Sammanfattning : .... LÄS MER

  5. 5. Control Strategy for Energy Efficient Fluid Power Actuators Utilizing Individual Metering

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Björn Eriksson; Linköpings universitet.; Linköpings universitet.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluid power; mode switch; energy efficient; independent metering; split spool; poppet; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Sammanfattning : This thesis presents a solution enabling lower losses in hydraulic actuator systems. A mobile fluid power system often contains several different actuators supplied with a single load sensing pump. One of the main advantages is the need of only one system pump. This makes the fluid power system compact and cost-effective. LÄS MER