Sökning: "ventilation small"

Visar resultat 1 - 5 av 84 avhandlingar innehållade orden ventilation small.

  1. 1. Ventilation and window opening in schools, Experiments and Analysis

    Författare :Birgitta Nordquist; Avdelningen för Installations- och klimatiseringslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heat exchanger efficiency; duct design; balancing; disturbance; tracer gas measurements; analytical model; window opening; single-sided ventilation; ventilation; schools; sensitivity analysis; Building construction; Byggnadsteknik;

    Sammanfattning : The objective of this thesis is to study the application of ventilation in schools buildings. A number of studies of the application of different forms of ventilation are presented. The main part of the thesis focuses on window opening in a classroom. Analytical models for calculation of the air change caused by window airing are proposed. LÄS MER

  3. 2. Optimizing mechanical ventilation in extremely preterm infants

    Författare :Linda Wallström; Richard Sindelar; Anders Jonzon; Raffaele Dellaca'; Heikki Lukkarinen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mechanical ventilation; extremely preterm infant; forced oscillation technique; volume targeted ventilation; proportional assist ventilation; phrenic nerve activity; electrical activity of the diaphragm; Pediatrik; Pediatrics;

    Sammanfattning : Extremely low gestational age newborns (ELGANs) i.e. infants born before 28 weeks of gestational age (GA), require respiratory support during their hospital stay, and a majority needs mechanical ventilation (MV) at some time point. LÄS MER

  4. 3. Benefits of Spontaneous Breathing : Compared with Mechanical Ventilation

    Författare :László Vimláti; Michael Lichtwarck-Aschoff; Anders Larsson; Lars Wiklund; Carl-Johan Wickerts; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; spontaneous breathing; mechanical ventilation; pulmonary shunt; oxygenation; hypoxic pulmonary vasoconstriction; Anestesiologi och intensivvård; Anaesthesiology and Intensive Care;

    Sammanfattning : When spontaneous breathing (SB) is allowed during mechanical ventilation (MV), atelectatic lung areas are recruited and oxygenation improves thereby. Whether unsupported SB at its natural pattern (without PEEP and at low pressure/small tidal volume) equally recruits and improves oxygenation, and if so by which mechanism, has not been studied. LÄS MER

  5. 4. Long-term properties of electric cables : a holistic approach to evaluating fire safety

    Författare :Viktor Emanuelsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; emissions; PVC; plasticiser; fire; electric cables; life cycle assessment; fire testing; Fire-LCA model; small scale; cable fires; large scale; LCA; migration; ageinf; ventilation; fire statistics; Cascio; polyolefin;

    Sammanfattning : .... LÄS MER

  7. 5. Exploring small airways using breath analyses

    Författare :Emilia Viklund; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; exhaled particles; small airways; alveolar nitric oxide; SARS-CoV-2; birch pollen; smoking; lining fluid;

    Sammanfattning : Background: Airway irritants such as allergens, tobacco smoke and viruses may cause damage in the small airways, usually undetected with routine diagnostic methods. Analyses of endogenously produced nitric oxide (NO) and endogenously produced small droplets (i.e. LÄS MER