Search for dissertations about: "iron conservation"

Showing result 1 - 5 of 15 swedish dissertations containing the words iron conservation.

  2. 1. Sulfur-Related Conservation Concerns in Marine Archaeological Wood : The Origin, Speciation and Distribution of Accumulated Sulfur with Some Remedies for the Vasa

    Author : Yvonne Fors; Magnus Sandström; Ian MacLeod; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sulfur accumulation; marine archaeological wood; Vasa; acidity; iron; ammonia; x-ray spectroscopy; cellulose; Chemistry; Kemi; strukturkemi; Structural Chemistry;

    Abstract : Synchrotron-based sulfur spectroscopy reveals a common concern for marine archaeological wood from seawater: accumulation of reduced sulfur compounds in two pathways. The distribution of sulfur species in the oak wood cell structure was mapped by scanning x-ray spectro-microscopy (SXM). READ MORE

  4. 2. Redox Reactions of NO and O2 in Iron Enzymes : A Density Functional Theory Study

    Author : Mattias Blomberg; Per Siegbahn; Adrian Mulholland; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; enzyme catalysis; redox reactions; cytochrome oxidase; nitric oxide reductase; hyponitrous acid anhydride; peroxynitrite; myoglobin; prostaglandin synthase; PGHS; NO; N2O; O2; CO; Chemical physics; Kemisk fysik;

    Abstract : In the present thesis the density functional B3LYP has been used to study reactions of NO and O2 in redox active enzymes.Reduction of nitric oxide (NO) to nitrous oxide (N2O) is an important part in the bacterial energy conservation (denitrification). READ MORE

  5. 3. Painting Treatments of Weather-Exposed Ferrous Heritage. Exploration of Oil Varnish Paints and Painting Skills

    Author : Arja Källbom; Göteborgs universitet; []
    Keywords : HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Armour paints; linseed oil; linseed varnish; tung oil; oil varnishes; stand oil; aluminium pigments; micaceous iron oxide; leafing; anticorrosive; maintenance; management; heritage painting; painting craft; painting skills; practice; parlance; vocabulary; working procedures; sensory quality assessments; paint ageing; quality control; weather-exposure; atmospheric exposure; durability; sustainability.; Pansarfärg; linoljefernissa; linolja; tungolja; standolja; aluminiumpigment; järnglans; järnglimmer; rostskyddsfärg; väderprovning; förvaltning; underhåll; hantverksskicklighet; målerihantverk; arbetsbeskrivningar; språkbruk; uppmärksamhet i handling; kvalitetsbedömning; sinnliga bedömningar; hållbarhet;

    Abstract : This thesis is about industrial heritage—the protection of ferrous heritage by using anticorrosive oil varnish paints. The purpose of this thesis in Kulturvård and craft research is to provide guidelines, tools, concepts, and models that may be used in anticorrosive oil varnish painting maintenance of ferrous heritage. READ MORE

  6. 4. Laser cleaning as a conservation technique for corroded metal artifacts

    Author : Yang Sook Koh; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Produktionsutveckling; Manufacturing Systems Engineering;

    Abstract : Preservation of cultural property for the future is one of the most important activities of our society. The information which we can gather from such materials is a valuable key to understanding the past. Conservation is a process which includes a range of different treatments. READ MORE

  7. 5. Sentinel Node Biopsy for Breast Cancer : Aspects and evolution

    Author : Andreas Karakatsanis; Fredrik Wärnberg; Peter Stålberg; Helena Olofsson; Lisa Rydén; Uppsala universitet; []
    Keywords : Breast Cancer; Sentinel Node Biopsy; Superparamagnetic Iron Oxide;

    Abstract : Sentinel Node Biopsy (SNB) in clinical practice was pivotal to the shaping of modern diagnosis, staging and treatment of patients with breast cancer. The use of radioisotope (RI) and blue dye (BD) has led to high detection rates with low false negatives, but delivery-of-care limitations connected to these tracers as well as the need for methods addressing new clinical conundrums delineates the urge for new tracers with comparable performance, easier logistics and, ideally expanded implementations. READ MORE