Sökning: "spänning"

Visar resultat 16 - 20 av 123 avhandlingar innehållade ordet spänning.

  1. 16. Barns sociala vardagsliv i förskolan

    Författare :Lovisa Skånfors; Annica Löfdahl; Solveig Hägglund; Ann-Marie Markström; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Children s peer cultures; children s interactions; preschool; social status; power; exclusion; tokens; social resources; positioning theory; social representation theory; withdrawal strategies; ethical radar; Barns kamratkulturer; barns interaktioner; förskola; status; makt; exklusion; sociala resurser; positioneringsteori; social representationsteori; strategier för att dra sig undan; etiska radar; Education; Pedagogik;

    Sammanfattning : The overarching aim of the studies in this dissertation is to contribute knowledge about children’s shared social knowledge in their preschool peer cultures, regarding both content and how it is established and maintained.An ethnographic approach has been used to study the shared activities of children, aged 3-5, in the preschool. LÄS MER

  3. 17. Capacitive Mixing for Extracting Concentration Gradient Energy

    Författare :Zhi Zou; Longcheng Liu; Chia-Hung Hou; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; capacitive mixing; salinity gradient energy; salt difference energy; electric double layer; flow electrode CapMix; kapacitiv blandning; salthaltsgradientenergi; saltskillnadsenergi; elektriskt dubbelskikt; flödeselektrod CapMix.; Chemical Engineering; Kemiteknik;

    Sammanfattning : Capacitive mixing (CapMix) is a renewable method of extracting energy from the salinity gradient energy (SGE) between seawater and freshwater. The classical CapMix systems using solid electrodes generate electricity by periodically circulating seawater and freshwater into the CapMix system. LÄS MER

  4. 18. Electrically Induced Debonding of Adhesives

    Författare :Simon Leijonmarck; Göran Lindbergh; Mats Johansson; Jinshan Pan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Kemiteknik;

    Sammanfattning : Electrically induced adhesive debonding is a process where an adhesive can be debonded at command with help of an applied voltage. To make this process function, the adhesive is  bonded between two metal substrates. In this study an epoxy adhesive is adhered between two aluminium foils forming a laminate structure. LÄS MER

  5. 19. Novel Processing and Electrical Characterization of Nanowires

    Författare :Kristian Storm; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gate; Capacitance; Hall effect; InP; InAs; Characterization; Nanowires; Processing; LED; Transistor; Fysicumarkivet A:2013:Storm;

    Sammanfattning : This thesis investigates novel electrical nanowire characterization tools and devices. Conventional characterization methods, long available to bulk semiconductor samples, have been adapted and transferred to the nanowire geometry. LÄS MER

  7. 20. The Prometheus Complex : Striving for competence

    Författare :Renée Perrin-Wallqvist; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Childhood; Fire setting; Adolescence; Psychology; Development psychology; Psykologi; Utvecklingspsykologi; Psykologi;

    Sammanfattning : The purpose of the present investigations was to obtain a more comprehensive view of fire setting by children and adolescents; to explore the prevalence of the phenomenon; whether or not it experimentally may be related to frustration or boredom and to examine the role of personality traits such as optimism, pessimism and creativity. This dissertation consists of two experimental and two interview studies. LÄS MER