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Showing result 1 - 5 of 7 swedish dissertations matching the above criteria.

  2. 1. Residual stresses, fatigue and deformation in cast iron

    Author : Mattias Lundberg; Johan Moverare; Ru Lin Peng; Taina Ahmad; Daniel Bäckström; Maqsood Ahmad; Sten Johansson; Mattias Calmunger; Peter Hedström; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The complex geometry of cylinder heads in heavy-duty diesel engines makes grey iron or compact graphite iron a preferred material choice due to its price, castability, thermal conductivity and damping capacity. Today’s strict emission laws have increased the demands on engine performance and engine efficiency. READ MORE

  4. 2. On the chemical state and mobility of lead and other trace elements at the biogeosphere/technosphere interface

    Author : Mattias Bäckström; Gunnar Jacks; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lead; trace elements; traffic; shooting range; peat; sediments; speciation; biokemi; Chemistry; Kemi; Kemi; Chemistry;

    Abstract : Most inorganic contamination has occurred at the interface between the technosphere and the biogeosphere, even though atmospheric emissions have affected the entire globe. Several human activities now pose a substantial threat towards human health and the ecosystems. READ MORE

  5. 3. Residual Stresses and Fatigue of Shot Peened Cast Iron

    Author : Mattias Lundberg; Lin Peng Ru; Sten Johansson; Taina Vuoristo; Daniel Bäckström; Maqsood Ahmad; Jens Bergström; Linköpings universitet; []
    Keywords : ;

    Abstract : The complex geometry of cylinder head in heavy-duty diesel engine makes grey cast iron or compact graphite iron a perfect material choice due to its castability, thermal conductivity and damping capacity. To increase the efficiency of the engine, the fatigue property of the material needs to be improved. READ MORE

  6. 4. Distribution and chemical association of trace elements in incinerator residues and mining waste from a leaching perspective

    Author : Naeem Saqib; Mattias Bäckström; Stefan Karlsson; William Mayes; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; trace elements; partitioning; fly ash; bottom ash; speciation; association; risk assessment; wood waste; incineration; mining waste; Chemistry; Kemi;

    Abstract : Incineration is a mainstream strategy for solid waste management in Sweden and all over the world. Improved knowledge and understanding about the distribution of trace elements (in ashes) during incineration, and how trace element partitioning respond to the changes in waste composition, are important in terms of combustion process optimization and plant efficiency. READ MORE

  7. 5. Utilization of waste materials for extraction of strategic metals : a biogeochemical approach

    Author : Viktor Sjöberg; Stefan Karlsson; Bert Allard; Mattias Bäckström; Christian Ekberg; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biogeochemistry; ICP-QMS; MP AES; strategic metals; vanadium; uranium; mine waste; steel slag; shale residues; Enviromental Science; Miljövetenskap;

    Abstract : Worldwide the modern society produces vast amounts of waste materials containing strategic and valuable metals. Some of them are of substantial economic or environmental significance if controlled recovery of metals can be performed or if uncontrolled release to the environment occurs. READ MORE