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Visar resultat 1 - 5 av 9 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Storage Stability and Phase Separation Behaviour of Polymer-Modified Bitumen : Characterization and Modelling

   Författare :Jiqing Zhu; Niki Kringos; Dallas Little; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymer-modified bitumen; Storage stability; Phase separation; Fluorescence microscopy; Phase-field modelling; Polymermodifierad bitumen; Lagringsstabilitet; Fasseparation; Fluorescensmikroskopi; Fas-fälts modellering; Transportvetenskap; Transport Science;

   Sammanfattning : Polymer-modified bitumen (PMB) is a high-performance material for road construction and maintenance. But its storage stability and phase separation behaviour are still not sufficiently understood and need to be studied toward a more successful and sustainable application of PMB. LÄS MER

3. 2. Platelet-lymphocyte cross-talk in atherogenesis : experimental studies on platelet-regulated lymphocyte adhesion and CD4+ T cell activation

   Författare :Zhu Linjing; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Atherosclerosis is an inflammatory and thrombotic disease. Platelets and lymphocytes, especially CD4+ T cells, are indispensable players during the initiation and progression of atherosclerotic lesion formation. During the early stage of atherogenesis, lymphocytes are generally thought to be recruited from arterial blood flow. LÄS MER

4. 3. Intermediate Temperature Solid Ionic Conductors and Fuel Cells

   Författare :Zhu Bin; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; molten phase; bulk and interfacial conduction; intermediate temperature; salt-ceramic composites; solid state proton conductors and fuel cells; blocked and non-blocked mobile species; ionic and protonic conduction and diffusion; oxyacid salts;

   Sammanfattning : Novel solid proton conductors based on oxyacid salts and salt-ceramic composites and intermediate temperature fuel cells have been developed in this thesis work. The discovery of proton conduction in these materials introduces a new concept of proton conductors and starts a new research field - Intermediate Temperature Solid Proton Conductors and Fuel Cells. LÄS MER

5. 4. Energy and Design Cost Efficiency for Streaming Applications on Systems-on-Chip

   Författare :Jun Zhu; Axel Jantsch; Twan Basten; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Streaming applications; Systems-on-chip; Synchronous dataflow; energy efficiency; buffer minimization; performance analysis; Informatics; computer and systems science; Informatik; data- och systemvetenskap;

   Sammanfattning : With the increasing capacity of today's integrated circuits, a number ofheterogeneous  system-on-chip (SoC)  architectures  in embedded  systemshave been proposed. In order to achieve energy and design cost efficientstreaming applications  on these  systems, new design  space explorationframeworks  and  performance  analysis  approaches are  required. LÄS MER

7. 5. High-Temperature Corrosion-Fatigue of Cast Alloys for Exhaust Manifolds

   Författare :Shengmei Xiang; Joakim Odqvist; Baohua Zhu; Johan Ahlström; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High temperature; corrosion fatigue; low-cycle fatigue; cast alloys; high-temperature oxidation; intermetallic phase; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : The introduction of gas-driven Otto engine and the corresponding usage of bio-fuels in heavy-duty engines will render the exhaust atmosphere more corrosive and bring a higher working temperature to exhaust manifolds. The current service material, a ferritic ductile cast iron called SiMo51, will soon meet its upper temperature limit set by the ferrite-austenite transformation at 860ºC. LÄS MER