Search for dissertations about: "slit"

Showing result 1 - 5 of 77 swedish dissertations containing the word slit.

  2. 1. Silicon Strip Detectors for Scanned Multi-Slit X-Ray Imaging

    Author : Mats Lundqvist; KTH; []
    Keywords : x-ray; silicon strip detectors; mammography; multi-slit; scanned slit; edge-on;

    Abstract : Digital imaging systems for medical applications must bebased upon highly efficient detectors to ensure low patientdose. This is particularly important in screening mammographybecause of the large number healthy women that is examined. Amammography system must also provide high spatial and contrastresolution. READ MORE

  4. 2. Studies of sound generation and propagation in flow ducts

    Author : Fabrice Ducret; Mats Åbom; Andy Moorhouse; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; two-port; plane wave; HVAC system; tailpipe; exhaust system; flexible duct; pipe; reflection coefficient; impedance; flow noise; vorticity; damping; scaling laws; impedance; transmission loss; perforated plate; slit; non linearity; Acoustics; Akustik;

    Abstract : This thesis contains three papers investigating problems of interest for noise control in ducts. The first part of this thesis treats the sound propagation in rectangular ducts with flexible walls. Various experimental techniques are performed to measure the internal sound propagation and radiation to the surrounding. READ MORE

  5. 3. Probing and improving coherence in Free-electron lasers

    Author : Mihai Pop; Synkrotronljusfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Accelerators; Free electron laser; Synchrotron radiation; Coherence; Young double-slit; spectrum analysis; Simulations;

    Abstract : Free electron lasers or FELs, have transformed the way science has been done in the last decades by providing coherent, highly brilliant radiation at wavelengths not achievable with conventional lasers. Their most important characteristic, along side brightness, is their coherence, which allows users to perform experiments that rely on precise phase characteristics of the probing radiation. READ MORE

  6. 4. Interactions between mouse CNS cells : microglia and neural precursor cells

    Author : Johan Aarum; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Aggregate cultures; cell markers; CNS; differentiation; fetal; immunohistochemistry; microglia; migration; neural stem cells; phage display; precursor; Slit.;

    Abstract : The mammalian central nervous system (CNS) contains a variety of cells, all specialized to perform different functions. Most numerous are the three types of glia cells, whose basic role is to support the signaling units of the CNS, the neurons. READ MORE

  7. 5. Explicit Loewner flows and their geometry

    Author : Eleftherios Theodosiadis; Alan Sola; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this Licentiate Thesis, we address problems related to partialdifferential equations for Loewner Theory. We studymulti-slit Loewner flows in the unit disc and the upper half planerespectively. READ MORE