Sökning: "nitrogen iron"

Visar resultat 41 - 45 av 91 avhandlingar innehållade orden nitrogen iron.

  1. 41. A Study On Factor Influencing the Microstructure and Shrinkage Porosity Formation in Compacted Graphite Iron

    Författare :Sadaf Vazehrad; Pär Jönsson; Attila Dioszegi; Steve Dawson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CGI; LGI; SGI; Solidification; Microstructure; Shrinkage porosity; Eutectic colony; Microsegregation;

    Sammanfattning : During the last decades, an intensive effort has been dedicated to introduce compacted graphite iron (CGI) for truck engine components as its intermediate graphite morphology provides an increased tensile property compared to lamellar cast iron (LGI) and a better thermal conductivity compared to nodular cast iron (SGI). However, the narrow production technology window in this cast iron grade requires increased technological discipline. LÄS MER

  3. 42. Assembly and Function of Nitric Oxide Reductase from Paracoccus denitrificans

    Författare :Maximilian Kahle; Pia Ädelroth; Hans-Georg Koch; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; non-heme iron; cofactor; heme-copper oxidase; AAA ; cNOR; chaperone; metal ion insertion; MoxR; nor accessory genes; FeB; liposomes; membrane mimetics; nanodiscs; reconstitution; enzymatic mechanism; NO reduction; O2 reduction; Biochemistry; biokemi;

    Sammanfattning : Bacterial denitrification is a part of the global nitrogen cycle and comprises the stepwise reduction of nitrate to molecular nitrogen, which is released to the atmosphere. Cytochrome c-dependent nitric oxide reductase (cNOR) from Paracoccus (P.) denitrificans catalyzes the reduction of nitric oxide to nitrous oxide and water. LÄS MER

  4. 43. Studies on the cold bonded briquettes of iron and steel plant by-products as burden material for blast furnaces

    Författare :Maneesh Singh; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

    Sammanfattning : During the various stages of iron & steel production a number of iron bearing by-products are generated. These by-products can be made into cement bonded agglomerates for use as burden material for blast furnaces. LÄS MER

  5. 44. Studies on the cement-bonded briquettes of iron and steel plant by-products as burden material for blast furnaces

    Författare :Maneesh Singh; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

    Sammanfattning : During the various stages of iron and steel production a number of iron bearing by-products are generated. These by-products can be made into cement- bonded agglomerates for use as burden material for blast furnaces. LÄS MER

  7. 45. Genomics, physiology and applications of cold tolerant acidophiles

    Författare :Maria Liljeqvist; Mark Dopson; Ricardo Amilis; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Psychrotolerant acidophiles have gained increasing interest because of their importance in biomining operations in environments where the temperature falls well below 10°C during large parts of the year.Acidithiobacillus ferrivorans is the only characterized acidophile with the ability to live a psychrotrophic lifestyle and is able to oxidize ferrous iron and inorganic sulfur compounds at low temperature. LÄS MER