Sökning: "vacuum extraction"

Visar resultat 16 - 20 av 23 avhandlingar innehållade orden vacuum extraction.

  1. 16. Interfaces in Organic Solar Cells

    Författare :Xian'e Li; Mats Fahlman; Xianjie Liu; Artem Bakulin; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Organic semiconductors (OSs), the promising candidates for the next generation electronic devices, have shown their advantages of light weight, flexibility, semi-transparency, tunable optical gaps, and energy levels, in the development history of over 70 years. OSs have been widely used in versatile applications such as organic light-emitting diodes, organic field-effect transistors, organic photodetectors, and organic solar cells (OSCs) which are mainly studied in this thesis. LÄS MER

  3. 17. Synthesis of Conjugated Polymers and Small Molecules for Organic Light-Emitting Devices and Photodetectors

    Författare :Petri Henrik Murto; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; solution processing; conjugated polymers; fluorescence; near-infrared; light-emitting electrochemical cell; organic photodetector; organic light-emitting diode;

    Sammanfattning : Production cost and environmental impact are the two major concerns that are related to the conventional optoelectronic devices. It is desirable for the modern semiconductors that they are free of toxic/costly metals, they can be processed with low-cost solution-based methods, and their optical, electronic, and mechanical properties can be easily tuned depending on the target application. LÄS MER

  4. 18. The long-term effects of obstetrical anal sphincter injury on pelvic floor function

    Författare :Ida E K Nilsson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anal incontinence; Caesarean section; Faecal incontinence; Pelvic organ prolapse; Severity; Urinary incontinence; Vaginal delivery;

    Sammanfattning : Background: As women live longer, the long-term effects of childbirth may negatively affect their quality of life and professional careers. Aim: This thesis investigates the long-term effects of vacuum extraction (VE) and one and two obstetrical anal sphincter injuries (OASIs). LÄS MER

  5. 19. Parents, Children and Childbearing

    Författare :Johan Dahlberg; Juho Härkönen; Gunnar Andersson; Jennifer S. Barber; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Demography; Sociology; Fertility; Intergenerational transmission; Intergenerational influences; Social background; Parental death; Timing of first birth; Mode of delivery; Sibling correlation; Event history analysis; Childlessness; Sweden; sociologisk demografi; Sociological Demography;

    Sammanfattning : This doctoral thesis provides a set of studies of social influences on fertility timing. Swedish register data are used to link individuals to their parents and siblings, thereby allowing the study of impacts of family of origin, social background, and parental death on fertility. LÄS MER

  7. 20. Opioids in the management of pain during delivery

    Författare :Christina Olofsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Labour pain; systemic opioids; analgesia; epidural; subarachnoid; sufentanll; fentanyl; postpartal urinary retention; caesarean section; cerebrospinal fluid; endogenous pain controlling mechanisms;

    Sammanfattning : Labour and delivery involve severe pain for most women. The goal for pain treatment in obstetrics is to provide effective and safe analgesia during all phases of delivery. The ideal method for pain relief during delivery is not yet available. LÄS MER