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Visar resultat 1 - 5 av 17 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Blast furnace coke properties and the influence on off-gas dust

   Författare :Maria Lundgren; Bo Lindblom; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

   Sammanfattning : In blast furnace ironmaking, efforts are made to decrease the coke consumption mainly by increasing the pulverized coal injection rate. This will cause changes in in-furnace reduction conditions, burden distribution and demands on raw material strength, etc. LÄS MER

3. 2. Development of coke properties during the descent in the blast furnace

   Författare :Maria Lundgren; Seshadri Seetharaman; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

   Sammanfattning : The efficiency in use of reducing agents in blast furnace (BF) ironmaking has been significantly improved over the years. At most blast furnaces, auxiliary fuels are injected to replace some of the coke. To further reduce carbon consumption, prevention of losses and modification of raw materials or process conditions are required. LÄS MER

4. 3. Physiological and pathophysiological regulation of ECL-cell activity

   Författare :Maria Lundgren; immunologi och glykobiologi - MIG Avdelningen för mikrobiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pharmacy; toxicology; Pharmacological sciences; pharmacognosy; Gastroenterologi; endothelin; gastrin; ischemia-reperfusion; Physiology; Fysiologi; Gastro-enterology; pancreastatin; histamine; microdialysis; ECL-cell; stomach; Farmakologi; farmakognosi; farmaci; toxikologi;

   Sammanfattning : The ECL cells are endocrine/paracrine cells located in the acid-producing part of the stomach. They produce and secrete histamine and chromogranin A-derived peptides in response to circulating gastrin. Mobilized histamine stimulates acid secretion from adjascent parietal cells. LÄS MER

5. 4. Born Small for Gestational Age : Impact of Linear Catch-up Growth

   Författare :Maria Lundgren; Torsten Tuvemo; Sven Cnattingius; Björn Jonsson; Kerstin Albertsson-Wikland; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; Pediatrik; Paediatric medicine; Pediatrisk medicin;

   Sammanfattning : The purposes of the thesis were to study associations between size at birth, short adult stature and risks of subnormal intellectual performance, high blood pressure, and overweight among males, and to study associations between size at birth, short adult stature and risk of overweight and giving birth to small for gestational age (SGA) infants among females.The effect of short adult stature on intellectual performance among males was analyzed in two population-based cohort studies. LÄS MER

7. 5. Cypriots in stone. Limestone sculpture in late Hellenistic and Roman Cyprus

   Författare :Maria Bruun-Lundgren; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES;

   Sammanfattning : .... LÄS MER