Essays about: "cyclic behaviour"

Showing result 1 - 5 of 15 essays containing the words cyclic behaviour.

  1. 1. Preparation, characterization and testing of model catalysts for CO oxidation and CO2 hydrogenation

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Author : Stefano Albertin; [2017]
    Keywords : Surface science; Rhodium; Nanoparticles; Catalysis; CO2; Physics and Astronomy;

    Abstract : A joint research between Lund University and Chalmers Competence Centre for Catalysis have shown promising results for a Rh-based catalyst for CO2 hydrogenation catalytic applications. The original catalyst consisted of a dispersion of nanoparticles onto a porous 3D oxide network. READ MORE

  3. 2. Fabrication and characterisation of a 3-layer aorta-on-a-chip

    University essay from Uppsala universitet/Mikrosystemteknik

    Author : Karolina Svensson; [2017]
    Keywords : Organ-on-a-chip; aorta-on-a-chip; PDMS; COC; microfabrication; APTES;

    Abstract : Endothelial cells, EC, are the cell type closest to the blood stream in vessel walls. These cells can affect the origin of atherosclerosis, plaques clogging the vessels. The behaviour of EC is affected by neighbouring smooth muscle cells and shear stress from the blood flow. READ MORE

  4. 3. Symptom och undersökningsfynd hos hundar med tecken på polyartrit : en retrospektiv fallstudie

    University essay from SLU/Dept. of Clinical Sciences

    Author : Karolina Engdahl; [2016]
    Keywords : immunmedierad polyartrit; ledsjukdom; hälta; smärta;

    Abstract : Immunmedierad polyartrit är en typ av ledsjukdom som karaktäriseras av hälta och ledsmärta. Sjukdomen kan yttra sig på olika sätt. Vissa individer drabbas av akut systemisk sjukdom med feber och trötthet i kombination med kraftig, tydligt palperbar ledsvullnad och smärta. READ MORE

  5. 4. Investigating methods for identifying paleo surge-type glaciers or highly dynamical ice flows in Trygghamn, west Spitsbergen

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Åsa Wallin; [2016]
    Keywords : ;

    Abstract : Surge-type glaciers exhibit a cyclic behaviour with an ice mass increase in the reservoir area during the inactive, quiescent phase and a rapid transportation of ice during the active, surge phase. In order to interpret the effects of climate change correctly it is important to distinguish between advances of surge-type glaciers and those of ‘normal’ glaciers, caused by climatic fluctuations. READ MORE

  6. 5. CORROSION-FATIGUE TESTING ON STEEL GRADES WITH DIFFERENT HEAT AND SURFACE TREATMENTS USED IN ROCK-DRILLING APPLICATIONS

    University essay from KTH/Materialvetenskap

    Author : Luis Miguel Béjar; [2016]
    Keywords : corrosion fatigue; crack; rotating-bending; S-N curve; staircase method; fatigue strength; shot peening; case hardening; through hardening; fatigue; corrosion; rock drill; atlas copco; steel;

    Abstract : Corrosion fatigue is a common failure mechanism in rock drilling components and many othermechanical parts subjected to cyclic loads in corrosive environments. A crucial part in the design ofsuch components resides in the selection of the right materials for the application, which ideallyinvolves testing and comparison of their performance under working conditions. READ MORE