Search for dissertations about: "back temperature"

Showing result 1 - 5 of 178 swedish dissertations containing the words back temperature.

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

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

    Abstract : 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. READ MORE

  4. 2. Cold exposure and thermal comfort among patients in prehospital emergency care : innovation research in nursing

    Author : Jonas Aléx; Britt-Inger Saveman; Stig Karlsson; Ulf Björnstig; Inggard Lereim; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; thermal comfort; thermal discomfort; cold exposure; cold stress; hypothermia; patients’ experiences; active warming; prehospital emergency care; finger temperature; back temperature; omvårdnadsforskning med medicinsk inriktning; Caring Sciences;

    Abstract : BackgroundPatients’ cold exposure is a neglected problem in prehospital emergency care. Cold stress increases pain and anxiety and contributes to fear and an overall sense of dissatisfaction. When left untreated, cold stress disturbs vital body functions until ultimately reaches hypothermia. READ MORE

  5. 3. Alternative back contacts for CZTS thin film solar cells

    Author : Sven Englund; Charlotte Platzer Björkman; Jonathan J. Scragg; Levent Gütay; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CZTS; thin film solar cells; back contacts; passivation; interface; titanium nitride; ATO; antimony-doped tin oxide; transparent back contact; CZTS; tunnfilmssolceller; bakkontakter; passivering; gränsskikt; mellanskikt; titannitrid; antimondopad tennoxid; ATO; transparent bakkontakt; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

    Abstract : In this thesis, alternative back contacts for Cu2ZnSnS4 (CZTS) thin film solar cells were investigated. Back contacts for two different configurations were studied, namely traditional single-junction cells with opaque back contacts and transparent back contacts for possible use in either tandem or bifacial solar cell configuration. READ MORE

  6. 4. Simulated and observed change of precipitation and temperature in Europe with focus on the Greater Baltic Area

    Author : Alexander Walther; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; climatology; precipitation; temperature; extremes; thermal growing season; diurnal cycle; regional climate model;

    Abstract : The regional climate of the Greater Baltic Area is complex and varies at a multitude of scales in space and time. This thesis contributes to increased understanding of climate change and climate variability in this area focusing on four significant research topics. Droughts have a considerable ecological and socio-economic impact. READ MORE

  7. 5. Germanium layer transfer and device fabrication for monolithic 3D integration

    Author : Ahmad Abedin; Mikael Östling; Cor Claeys; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Monolithic; sequential; 3D; silicon; germanium; wafer bonding; etch back; germanium on insulator; GOI; Ge pFET; low temperature; Sipassivation; pn junction; Kisel; germanium; epitaxi; selektiv; pn-övergång; germanium påisolator; GOI; Ge PFET; bonding; monolitisk; sekventiell; tre dimensionell; 3D; lågtemperarad;

    Abstract : Monolithic three-dimensional (M3D) integration, it has been proposed,can overcome the limitations of further circuits’ performance improvementand functionality expansion. The emergence of the internet of things (IoT) isdriving the semiconductor industry toward the fabrication of higher-performancecircuits with diverse functionality. READ MORE