Sökning: "artificial exposure"

Visar resultat 1 - 5 av 62 avhandlingar innehållade orden artificial exposure.

  1. 1. Studies on the barrier properties of exterior wood coatings

    Författare :Jan Ekstedt; KTH; []
    Nyckelord :Coatings; surfactants; water absorption value; EN 927; paint; additives; moisture dynamics; absorption; desorption; artificial weathering; artificial exposure; computerized tomography; MRI.;

    Sammanfattning : Coatings for exterior wood have two basic functions. One isto give an aesthetically acceptable surface appearance andcolour. The other is to provide protection against wooddegradation by microbiological or physical attack. LÄS MER

  2. 2. Survival of onlay bone grafts. A study in the adult rat

    Författare :Monica Gordh; Lunds universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rats; polytetrafluoroethylene; artificial; membrane; immunohistochemistry; cortical perforations; bone morphogenetic protein; bone marrow; bone; bone grafts; Odontologi; stomatology; Odontology; skull; tibia;

    Sammanfattning : The aim of this thesis was to study onlay bone grafting in the adult rat to improve graft incorporation and perservation of graft size. In 167 adult isogeneic lewis rats, the size maintenance and bone formation at the graft-host interface of uni- and bicortical onlays positioned in various environments and treatments were investigated. LÄS MER

  3. 3. Knowledge Representation, Heuristics, and Awareness in Artificial Grammar Learning

    Författare :Tobias Johansson; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; abstraction; awareness.; non-analytic processing; Artificial grammar learning; fluency; implicit learning;

    Sammanfattning : People can become sensitive to the general structure of different parts of the environment, often without studying that general structure directly, but through being incidentally exposed to instances that conform to the structure. When such learning proceeds unintentionally and gives rise to knowledge that is difficult to verbalize it is often referred to as implicit learning. LÄS MER

  4. 4. Occupational skin exposure to cobalt : origin and fate

    Författare :Jolinde Kettelarij; Karolinska Institutet; Karolinska Institutet; []

    Sammanfattning : Exposure to cobalt is not without risk. Besides adverse health effects on the respiratory system, cobalt is one of the most important sensitising metals with a contact allergy prevalence of 2.2% in the general population. Sources of exposure to cobalt in the general population are diffuse. LÄS MER

  5. 5. Hemodynamics of artificial devices used in extracorporeal life support

    Författare :Francesco Fiusco; Lisa Prahl Wittberg; Katharine Fraser; KTH; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; computational fluid dynamics; hemorheology; platelet activation; thrombogenicity; extracorporeal membrane oxygenation; hemodynamics; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : Extracorporeal Membrane Oxygenation (ECMO) is a life-saving therapy usedfor support in critical heart and/or lung failure. Patient’s blood is pumped viaan artificial lung for oxygenation outside of the body. The circuit is composedof a blood pump, cannulae for drainage and reinfusion, a membrane lung,tubing and connectors. LÄS MER