Sökning: "Au"

Visar resultat 26 - 30 av 360 avhandlingar innehållade ordet Au.

  1. 26. Clinical And Experimental Studies of Contact Allergy to Stent Metals - with focus on gold

    Författare :Susanne Ekqvist; Yrkes- och miljödermatologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; B-Au; patch testing; restenosis; contact allergy; Dermatology; metals; gold; stent; B-Ni; nickel;

    Sammanfattning : A large number of patients are treated with coronary stents, and restenosis (recurrent narrowing of the vessel) is a serious problem. Contact allergy to metal ions eluted from stainless steel stents has been suggested to contribute to in-stent restenosis. LÄS MER

  3. 27. Modelling electrooxidation of glycerol and methanol on close-packed transition metal surfaces

    Författare :Mikael Valter; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; implicit solvation; gold; Au 111 ; transition metals; biodiesel; electrochemistry; glycerol; DFT; van der Waals; methanol; scaling relations;

    Sammanfattning : Burning fossil fuels leads to excess CO2 in the atmosphere, causing global warming, threatening civilisation and ecosystems worldwide. As a step in making the society fossil-independent, we need to replace oil, coal, and gas in the transportation sector with fuels originating from sustainable energy sources. LÄS MER

  4. 28. Structure and Electronic Properties of Phthalocyanine Films on Metal and Semiconductor Substrates

    Författare :Ieva Bidermane; Carla Puglia; Nadine Witkowski; Nils Mårtensson; Luca Giovanelli; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phthalocyanines; silicon 100 ; Au 111 ; photoelectron spectroscopy; scanning tunneling microscopy; surface science; organic molecules on surface;

    Sammanfattning : The current thesis presents fundamental studies of phthalocyanines (Pcs), a group of organic macro-cycle molecules. The use of phthalocyanine molecular films in devices with a variety of possible technological applications has been the reason of the many studies dedicated to such molecules during the last decades. LÄS MER

  5. 29. The nature of gold in the Aitik Cu-Au deposit : implications for mineral processing and mine planning

    Författare :Monika Sammelin; Andreas Fredriksson; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

    Sammanfattning : The Aitik mine is a large Cu-Au producer in Europe with an annual production of 28 million tons of ore and a planned expansion of production to 36 million tons of ore until year 2013. Large ongoing investments are done in the mine and a new processing plant is built to manage the capacity increase. LÄS MER

  7. 30. The Tjårrojåkka apatite-iron and Cu (-Au) deposits, northern Sweden : products of one ore forming event

    Författare :Åsa Edfelt; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

    Sammanfattning : The Tjårrojåkka area is located about 50 km WSW of Kiruna, northern Sweden, and hosts one of the best examples of spatially related apatite-iron (Kiruna type) and Cu (-Au) deposits in Sweden. The results from this project show that the two deposits are genetically related and indicate the presence of a younger, previously unknown, 1780 Ma generation of apatite- iron ores in northern Sweden. LÄS MER