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Visar resultat 1 - 5 av 13 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. An Intense Attosecond Light Source - Towards Extreme Ultraviolet Pump-Probe Experiments

    Författare :Filippo Campi; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Attosecond; Femtosecond; Ultrashort; Ultrafast; High-order Harmonic Generation; pump probe; XUV; Fysicumarkivet A:2017:Campi;

    Sammanfattning : This thesis presents important steps towards performing high-intensity attosecond pump-probe experiments at the Lund high-intensity extreme ultraviolet (XUV) beamline, which followed two complementary paths: maximization of the XUV intensity available in the interaction region with a gas target, and providing attosecond temporal resolution.To maximize the energy of the XUV pulses generated via high-order harmonicgeneration (HHG), the macroscopic response of atoms to the driving infrared field was optimized. LÄS MER

  3. 2. Safety Format for Non-linear Analysis of RC Structures Subjected to Multiple Failure Modes

    Författare :Filippo Sangiorgio; Johan Silfwerbrand; Giuseppe Mancini; Diego Allaix; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis treats the safety format for non-linear analysis of reinforced concrete (RC) structures subjected to multiple failure modes. The purpose is to identify questions which are poorly understood and ambiguous about the behaviour of structures that may fail due to a number of possible failure modes (e.g. LÄS MER

  4. 3. Bandit Methods for Network Optimization : Safety, Exploration, and Coordination

    Författare :Filippo Vannella; Alexandre Proutiere; Vincent Tan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : The increasing complexity of modern mobile networks poses unprecedented challenges to their optimization. Mobile Network Operators (MNOs) need to control a large number of network parameters to satisfy the users’ demands. LÄS MER

  5. 4. Learning Methods for Antenna Tilt Optimization

    Författare :Filippo Vannella; Alexandre Proutiere; Erik G. Larsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : The increasing complexity of modern mobile networks poses unprecedented challenges to Mobile Network Operators (MNOs). MNOs need to utilize network resources optimally to satisfy the growing demand of network users in a reliable manner. LÄS MER

  7. 5. The virtual tumour - in silico modelling of tumour vasculature, oxygenation and treatment outcome

    Författare :Filippo Schiavo; Iuliana Toma-Daşu; Emely Kjellsson Lindblom; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Medical Radiation Physics; medicinsk strålningsfysik;

    Sammanfattning : Poor tumour oxygenation, namely hypoxia, is one of the major challenges that has been recognised in radiotherapy, yet it is not being accounted for in standard treatments. Hypoxia, resulting from a heterogeneous distribution of vessels (chronic hypoxia) or of a loss in vascular perfusion (acute hypoxia), affects all kinds of solid tumours to different extents. LÄS MER