Search for dissertations about: "REM"

Showing result 1 - 5 of 16 swedish dissertations containing the word REM.

  1. 1. An Experimental Study of Submerged Entry Nozzles (SEN) Focusing on Decarburization and Clogging

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Arashk Memarpour; KTH.; Högskolan Dalarna.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Refractory; SEN; Clogging; REM; Coating; glaze; alkaline; Post- Mortem; industrial preheating; ZrSi2; Graphite; Alumina; Oxidation; Al2O3-C; ZrO2-C; MgO-C; decarburization; reaction mechanism; Yttria Stabilized Zirconia; plasma spray-PVD coating;

    Abstract : The submerged entry nozzle (SEN) is used to transport the molten steel from a tundish to a mould. The main purpose of its usage is to prevent oxygen and nitrogen pick-up by molten steel from the gas. Furthermore, to achieve the desired flow conditions in the mould. READ MORE

  2. 2. Effects of Vagus Nerve Stimulation and Ketogenic Diet on Quality of Life and Changes in EEG and Sleep

    University dissertation from Department of Clinical Sciences, Lund University

    Author : Tove Hallböök; Lunds universitet.; Lund University.; [2006]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; vagus nerve stimulation; neuropsykologi; Neurologi; neurophysiology; neuropsychology; Neurology; Medicin människa och djur ; Medicine human and vertebrates ; behaviour; attention; ketogenic diet; delta power; slow wave sleep; REM; mood; sleep; quality of life; EEG; seizure frequency; spike detection; children; neurofysiologi; Pediatri; epilepsy; Pediatrics;

    Abstract : Popular Abstract in Swedish De flesta barn som insjuknar i epilepsi tillfrisknar eller blir anfallsfria med hjälp av antiepileptisk medicin. Hos drygt en fjärde del av barnen blir epilepsin svårbehandlad och anfallskontroll är svår att uppnå. Dessa barn ska i första hand erbjudas möjlighet till epilepsikirurgisk utredning och behandling. READ MORE

  3. 3. The rule of hydrogen and rare earth metals in the formation of protective metal-oxides

    University dissertation from Stockholm : Materialvetenskap

    Author : Bent N. Tveten; KTH.; [2000]
    Keywords : chromium; high-temperature corrosion; oxide growth; scale adherence; hydrogen; yttria; REM; reactive element effect; gas phase analysis;

    Abstract : The effects of hydrogen and rare earth metal (REM) additionson the oxidation behavior of metals and alloys that formchromia, alumina and zirconia in 20 mbar O2and/or H2O have been investigated at elevated temperatures.The metal-gas reactions were studied by the use of isotopicallylabeled gas in combination with mass spectrometry and bymeasuring changes in the total pressure in a closed reactionchamber. READ MORE

  4. 4. A study on the Submerged Entry Nozzels (SEN) respecting clogging and decarburization

    University dissertation from Stockholm : US-AB

    Author : Arashk Memarpour; KTH.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Refractory; SEN; Clogging; REM; Coating; glaze; alkaline; Refractory; ZrSi2; Graphite; Alumina; Oxidation; Al2O3-C; ZrO2-C; MgO-C; decarburization; reaction mechanism; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : The submerged entry nozzle (SEN) has been used to transport the molten steel from tundish to the mould. The main purpose of the SEN usage is both to prevent oxygen and nitrogen pick-up by molten steel and to achieve the desired flow condition in the mould. READ MORE

  5. 5. Influence of the electrolyte on the electrode reactions in the chlorate process

    University dissertation from Stockholm : KTH

    Author : Linda Nylén; KTH.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chlorate; chloride oxidation; critical anode potential; chromate; DSA; hydrogen evolution; iron; mass transport; oxygen evolution; REM; RDE; steel; NATURAL SCIENCES Chemistry Analytical chemistry Electrochemistry; NATURVETENSKAP Kemi Analytisk kemi Elektrokemi;

    Abstract : The chlorate process is very energy intensive and a major part of the production costs are for electrical energy. Since the electricity prices are constantly increasing and may also vary periodically, the chlorate plants may be forced to adjust their production rate to the price at each moment in order to minimise their costs. READ MORE