Essays about: "Function Approximation"

Showing result 21 - 25 of 156 essays containing the words Function Approximation.

  1. 21. Quantum Annealing Algorithms for PAPR Minimisation in Wireless Networks

    University essay from Uppsala universitet/Materialteori

    Author : David Bern; [2022]
    Keywords : Quantum Mechanics; Algorithms; Quantum Annealing; Graph representation;

    Abstract : In this thesis, we devise a scheme to run PAPR minimisation with 3GPP EVM requirement as constraint on the D-Wave Systems’ quantum annealer. The PAPR minimisation is a problem central to optimising the costs and performance of wireless networks becoming increasingly difficult for larger OFDM-MIMO systems, while the EVM constraint needs to be satisfied to reach an industry standard performance. READ MORE

  3. 22. Modeling the Head Effect in Hydropower River Systems using MILP and BLP Approaches

    University essay from Linköpings universitet/Tillämpad matematik; Linköpings universitet/Tekniska fakulteten

    Author : Lina Larsson; Mikaela Lindberg; [2022]
    Keywords : Hydropower optimization; Hydropower scheduling; The head effect; Bilinear programming; Mixed-integer linear programming;

    Abstract : With a fast-growing electricity demand and a larger proportion of intermittent energy sources follows a greater need for flexible and balancing sources of electricity, such as hydropower. Planning of hydropower production is considered to be a difficult problem to solve due to several nonlinearities, combinatorial properties and the fact that it is a large scale system with spatial-temporal coupling. READ MORE

  4. 23. Effects of Temperature and Moisture Content on Young’s Modulus in Glass Fiber Reinforced Polyamide

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Joel Sandberg; Samuel Sjölin; [2022]
    Keywords : Polyamide; nylon 66; PA66GF25; glassfiber reinforced polyamide; Young’s modulus; Polyamid; nylon 66; PA66GF25; glasfiberförstärkt polyamid; Youngs modul.;

    Abstract : This thesis was made in cooperation with Roxtec. Roxtec specialises in cable sealingsolutions and are world leading in their area. In many of Roxtec’s products steel isused in the frame holding the sealing rubber. To lower Roxtec’s environmental foot-print plastic would be used instead in the frames if possible, more specific polyamide6. READ MORE

  5. 24. Error estimation for neural network approximations of convection problems

    University essay from KTH/Matematik (Avd.)

    Author : Ludvig Eidmann; [2022]
    Keywords : ;

    Abstract : The problem of approximating a solution to the convection equation $\partial_t u +f\cdot\nabla_xu = h$ given data on the flux $f$, source function $h$ and a final condition $g$ is investigated. Specifically, two layer neural networks are used to approximate $f,h$ and $g$ and a solution is approximated using numerical integration. READ MORE

  6. 25. Prompt emission in Gamma-ray bursts; Photospheric Radiation from Synchrotron-Like spectra

    University essay from KTH/Fysik

    Author : Erik Vitols; [2022]
    Keywords : Gamma-ray burst; radiation mechanisms: thermal and non-thermal;

    Abstract : Gamma-ray bursts (GRBs) are the most luminous phenomena in the Universe, explosions whoseenergy is generated by supernovae or mergers of dense objects such as neutron stars. The GRBemission is divided into the prompt emission phase characterized by γ-ray radiation and the afterglowof lower energy radiation. READ MORE