Essays about: "ljusmikroskopi"

Showing result 1 - 5 of 11 essays containing the word ljusmikroskopi.

1. 1. Life and fracture in very high cycle fatigue of a high strength steel

   University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Author : Daniel Karlsson; [2021]
   Keywords : Very high cycle fatigue; VHCF; Fractography; Fine granular area; FGA; High strength tool steel; Ultrasonic testing equipment;

   Abstract : Classical fatigue models teach that there is an intrinsic fatigue limit for steels, representing a level of stress that is too low for regular crack growth where every cyclic load propagates a fatigue crack through the material. Modern application with extreme lifetimes has shown that fatigue will still take place in steels with stress levels well below the expected fatigue limit. READ MORE

3. 2. Bacteria - based self - healing mortar with bio - plastic healing agents : Comparative analysis on quantification and characterization of self-healing by various experimental techniques

   University essay from KTH/Betongbyggnad

   Author : Rahul Roy; [2020]
   Keywords : Mortar; crack; autonomous healing; bacteria; bioplastic; lactic acid derivatives PLA ; alkanoate derivatives AKD ; internal crack geometry; quantification; characterization; statistical analysis; Bruk; sprickbildning; självläkning; bakteriebaserademedel; bioplast; mjölksyrederivat PLA ; alkanoatderivat AKD ; inre sprickbildning; kvantifiering; karakterisering; statistisk analys;

   Abstract : Crack formation in concrete structures due to various load and non-load factors leading to degradation of service life is very common. Repair and maintenance operations are, therefore, necessary to prevent cracks propagating and reducing the service life of the structures. READ MORE

4. 3. Reduction of iron oxide by hydrogen studied using environmental transmission electron microscopy

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : David Wahlqvist; [2020]
   Keywords : Transmission Electron Microscopy; Electron Diffraction; Iron Oxide; Reduction; Iron; Environmental Transmission Electron Microscopy; ETEM; Materials chemistry; Materialkemi; Chemistry;

   Abstract : This thesis aims to explore how the reduction of iron oxide by hydrogen should be explored in an environmental transmission electron microscope (ETEM). This is done by performing a series of reduction attempts in the ETEM at nCHREM, Lund University, and exploring how the ETEM conditions are different from those used commercially. READ MORE

5. 4. Microscopy techniques for studying polymer-polymer blends

   University essay from Umeå universitet/Institutionen för fysik

   Author : Sandra Mattsson; [2019]
   Keywords : CLEM; correlative light and electron microscopy; correlative microscopy; fluorescence microscopy; scanning electron microscopy; phase contrast microscopy; polymer blend; morphology; super yellow; PEO; poly ethylene oxide ; CLEM; korrelativ ljus- och elektronmikroskopi; korrelativ mikroskopi; fluorescensmikroskopi; svepelektronmikroskopi; faskontrastsmikroskopi; polymerblandning; morfologi; super yellow; PEO; poly etylenoxid ;

   Abstract : Semiconductors are used in many electronic applications, for example diodes, solar cells and transistors. Typically, semiconductors are inorganic materials, such as silicon and gallium arsenide, but lately more research and development has been devoted to organic semiconductors, for example semiconducting polymers. READ MORE

6. 5. Microfluidic blood fractionation and lysis towards analysis of cytokine levels in red blood cells

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Laura Barrett; [2019]
   Keywords : Microfluidics; Capillary action; Blood; Fractionation; Cytokine; Interleukin 3;

   Abstract : In the process of blood analysis, for biomarker detection, blood plasma or serumis analyzed, while Red blood cells (RBCs) are usually considered waste. A recentstudy has found that cytokine concentrations in RBC lysate are on average 12-fold higher than in plasma. READ MORE