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Showing result 1 - 5 of 10 essays matching the above criteria.

  1. 1. Determining the Reaction Mechanism of Hydrolysis of p-Nitrophenyl Butyrate Performed by a Cold-Adapted Lipase, BplA : Finding the Rate-Limiting Step

    University essay from Uppsala universitet/Beräkningsbiologi och bioinformatik

    Author : Linn Svalberg; [2021]
    Keywords : ;

    Abstract : Lipases are one of the most important biocatalysts for biotechnological applications. They have high importance since lipases have a catalytic activity that is related to their hydrolysis and synthesis reactions to high regioselectivity and enantioselectivity. They also have an activity over a wide range of temperature, pH, and diverse substrates. READ MORE

  3. 2. Graphene Quantum Dots as Fluorescent and Passivation Agents for Multimodal Bioimaging

    University essay from KTH/Tillämpad fysik

    Author : Nüzhet Inci Kilic; [2021]
    Keywords : graphene quantum dots; hybrid nanoparticles; x-ray fluorescence contrast agents; multimodal bioimaging; grafen-kvantprickar; hybrida nanopartiklarna; multimodal bioavbildning; röntgenfluorescens kontrastmedel;

    Abstract : Zero-dimensional graphene (carbon) quantum dots have been drawing attention in bio-related applications since their discovery, especially for their optical properties, chemical stability, and easily modifiable surface.  This thesis focuses on the green synthesis of nitrogen-doped graphene quantum dots (GQDs) for dual-mode bioimaging with X-ray fluorescence (XRF) and optical fluorescence. READ MORE

  4. 3. Segmentation and synthesis of pelvic region CT images via neural networks trained on XCAT phantom data

    University essay from Linköpings universitet/Datorseende

    Author : HANG ZHAO; [2021]
    Keywords : ;

    Abstract : Deep learning methods for medical image segmentation are hindered by the lack of training data. This thesis aims to develop a method that overcomes this problem. Basic U-net trained on XCAT phantom data was tested first. The segmentation results were unsatisfactory even when artificial quantum noise was added. READ MORE

  5. 4. Investigation on Stability of Cesium Lead Bromide quantum dots

    University essay from Lunds universitet/Kemiska institutionen

    Author : Lina Le; [2016]
    Keywords : kemisk fysik; chemical physics; Chemistry;

    Abstract : Monodisperse colloidal quantum dots of fully inorganic cesium lead bromide CsPbBr3 are synthesised at two distinguished temperatures (120 and 180oC) using inexpensive commercial precursors. The stability of these quantum dots is studied under three different conditions by measuring absorption as well as photoluminescence as functions of time. READ MORE

  6. 5. Imaging stellar surfaces with intensity interferometry

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Lagadec Tiphaine; [2014]
    Keywords : Interferometry; Intensity interferometry; Second order coherence; Aperture synthesis; High resolution imaging; Stellar surfaces imaging; Cherenkov Telescope Array.; Physics and Astronomy;

    Abstract : Context. Intensity interferometry was invented and used by R.Hanbury Brown and R.Q. READ MORE