Sökning: "deposition"

Visar resultat 1 - 5 av 1399 avhandlingar innehållade ordet deposition.

  1. 1. Atmospheric wet deposition : aspects on areal and temporal variations in the concentration/deposition field

    Författare :Lennart Granat; Stockholms universitet; []

    Sammanfattning : .... LÄS MER

  2. 2. Deposition and absorption of inhaled drugs

    Författare :Eva Bondesson; Malmö Klinisk fysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tomografi; radiologi; Klinisk fysiologi; medical instrumentation; tomography; radiology; Clinical physics; technetium-99m; radionuclide imaging; radioactive aerosol; powder inhaler; pharmacokinetics; mucociliary clearance; lung deposition; gamma scintigraphy; inhalation; deposition modelling; drug absorption; absorption enhancer; aerosol; medicinsk instrumentering; Physiology; Fysiologi;

    Sammanfattning : Main objectives of this thesis were to evaluate a gamma scintigraphic method used to quantify drug aerosol deposition in the lung, to investigate the influence of two aerosol inhalation parameters on the distribution of inhaled dry powder within the airways, to assess pulmonary absorption kinetics and bioavailability of an inhaled hydrophilic solute in relation to site of deposition, and to assess the influence of a surface active agent (sodium taurocholate, a bile salt) on the deposition and absorption of an inhaled hydrophilic solute. Repeated planar gamma scintigraphy was found to provide the same information on total pulmonary drug deposition as an independent method that involved assessments of urinary drug recovery after blockage of gastrointestinal drug absorption when all of the critical parts of the methodological procedures were accurately and meticulously executed. LÄS MER

  3. 3. Modeling colloidal nanoparticles: From growth to deposition

    Författare :Joakim Löfgren; Chalmers University of Technology; []
    Nyckelord :gold; DLVO; thermodynamics; van der Waals; density functional theory; modeling; deposition; dispersive interactions; anisotropic; colloidal nanoparticles; nanorods;

    Sammanfattning : In recent decades metal nanoparticles (NPs) have been the subject of intense research. The interest stems from the NPs physicochemical properties that can be conveniently tuned through, e.g., their size, shape or composition. LÄS MER

  4. 4. Carbon Nanostructures – from Molecules to Functionalised Materials : Fullerene-Ferrocene Oligomers, Graphene Modification and Deposition

    Författare :Michael Nordlund; Helena Grennberg; Mogens Brøndsted Nielsen; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Fullerenes; Graphene; Deposition; Functionalization; Organometallic complexes; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Sammanfattning : The work described in this thesis concerns development, synthesis and characterisation of new molecular compounds and materials based on the carbon allotropes fullerene (C60) and graphene.A stepwise strategy to a symmetric ferrocene-linked dumbbell of fulleropyrrolidines was developed. LÄS MER

  5. 5. FDM 3D printing of conductive polymer nanocomposites : A novel process for functional and smart textiles

    Författare :Razieh Hashemi Sanatgar; Jean-François Feller; Anne Schwarz-Pfeiffer; Högskolan i Borås; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D printing; Fused deposition modeling; Adhesion; Deposition; Computer-aided design modeling; Statistical design; Conductive polymer nanocomposite; Multi-walled carbon nanotube; carbon black; Piezoresistive; Pressure Force sensors; 熔融沉积成型;; 附着力; 沉积法; 电脑协助建模; 统计学设计; 导电性高分子复合材料; 多壁碳纳米管; 炭黑; 压阻; 压力传感器; impression 3D; modélisation par dépôt de filament fondu; adhérence; dépôt; modélisation CAO; conception statistique; nanocomposite en polymère conducteur; nanotube de carbone à parois multiples; noir de carbone Ketjen; piézorésistif; capteurs de pression force; 3D-skrivare; fused deposition modeling; vidhäftning; applicering; datorstödd designmodellering; statistisk design; konduktiva polymera nanokompositer; flerväggiga kolnanorör; carbon black; piezoresistiv; tryck- kraftsensorer;

    Sammanfattning : The aim of this study is to get the benefitof functionalities of fused deposition modeling(FDM) 3D printed conductive polymer nanocomposites (CPC) for the developmentof functional and smart textiles. 3D printing holds strong potential for the formation of a new class of multifunctional nanocomposites. LÄS MER