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Visar resultat 1 - 5 av 6 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Thermodynamics and Kinetics in Metallurgical Processes - with a Special Focus on Bubble Dynamics

   Författare :Yu Liu; Mikael Ersson; Pär Göran Jönsson; Bjoern Glaser; Joaquín B. Ordieres-Meré; Yogeshwar Sahai; Birgit Palm; Ville-Valtteri Visuri; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ladle; EAF; gas bubbling; physical modeling; mathematical modeling; thermodynamics; Skänkmetallurgi; EAF; gasbubblor; experimentell modellering; matematisk modellering; termodynamik; Teknisk materialvetenskap; Materials Science and Engineering; Metallurgical process science; Metallurgisk processvetenskap;

   Sammanfattning : Gas stirring is commonly used in the steelmaking processes to reinforce chemical reactions, kinetic transfer, and inclusion removal, etc. This dissertation concentrates on multiphase flows with gas bubbling to study fluid dynamics and thermodynamics in metallurgical processes. LÄS MER

3. 2. On Bubble Dynamics in Acoustic Cavitation

   Författare :Ali Kadhim Hadi Alhelfi; Värmeöverföring; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Nyligen har mycket uppmärksamhet ägnats åt studier rörande ickelinjära oscillationer av sfäriska gasbubblor i pulserande tryckfält. Denna lic-avhandlning syftar till att utöka kunskapen kring kavitationsfenomenet. LÄS MER

4. 3. Aspects of retransfusion of shed blood in cardiac surgery

   Författare :Björn Brondén; Anestesiologi och intensivvård; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; CABG; cardiotomy suction; lipid microemboli; porcine study; clinical study; cystatin C; creatinine; iohexol clearance; outcome; retransfusion; transfusion; blood.;

   Sammanfattning : The use of cardiotomy suction during open heart surgery with cardiopulmonary bypass (CPB) has a long tradition and often regarded as mandatory. Recently, studies have described potentially negative effects of cardiotomy suction with activation of the complement system, enhanced inflammatory response, hemolysis and coagulopathy. LÄS MER

5. 4. Anomalous Spectral Lines in Space and Laboratory Plasmas - Studies with HST and CRYRING

   Författare :Henrik Hartman; Astronomi - Genomgår omorganisation; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magnetic resonance; supraconductors; magnetic and optical properties; electrical; Condensed matter:electronic structure; strontium; titanium; CRYRING; iron; STIS; metastable levels; HST; RR Telesopii; Eta Carinae; line identification; fluorescence; forbidden lines; Atomic Spectroscopy; lifetime measurements; Astronomy; Astronomi; rymdvetenskap; cosmic chemistry; space research; spektroskopi; supraledare; magnetiska och optiska ; egenskaper elektriska; Kondenserade materiens egenskaper:elektronstruktur; magnetisk resonans; relaxation; spectroscopy; kosmisk kemi; Fysicumarkivet A:2003:Hartman;

   Sammanfattning : Eta Carinae is one of the most massive and luminous stars in the Galaxy. A huge bipolar nebula and an equatorial disk give the object a characteristic shape. Close to the star there are gas clouds, which emit intriguing emission line spectra. LÄS MER

7. 5. Hubble Space Telescope Spectroscopy of Eta Carinae and Chi Lupi

   Författare :Torgil Zethson; Partikel- och kärnfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magnetic and optical properties; supraconductors; electrical; Rymdteknik; kosmisk kemi; Condensed matter:electronic structure; rymdvetenskap; Astronomi; cosmic chemistry; space research; Astronomy; boron; isotope shifts; Chi Lupi; fluorescence; element abundances; emission lines; GHRS; strontium; STIS; Eta Carinae; spectroscopy; Hubble Space Telescope; supraledare; magnetiska och optiska ; magnetisk resonans; Space technology; spektroskopi; relaxation; magnetic resonance; egenskaper elektriska ; Kondenserade materiens egenskaper:elektronstruktur;

   Sammanfattning : Eta Carinae is a super-massive, super-luminous star. It is surrounded by a bipolar nebula, the "Homunculus", and several blobs of ejected gas which are the source of a complex emission-line spectrum. LÄS MER