Essays about: "parabolic"

Showing result 21 - 25 of 76 essays containing the word parabolic.

  1. 21. Detection of in-plane orbital manoeuvres from a catalogue of geostationary objects

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Phuong Linh Ngo; [2020]
    Keywords : manoeuvre detection; geostationary orbit; perturbations; filters; Two-line elements; station keeping;

    Abstract : The number of man-made space objects is dramatically growing nowadays. The continuous monitoring and studying of these objects are necessary to keep their number under control and ensure safe space operations. READ MORE

  3. 22. Dispatch Optimizer for Concentrated Solar Power Plants

    University essay from Uppsala universitet/Byggteknik och byggd miljö

    Author : Gilda Miranda; [2020]
    Keywords : Concentrated Solar Power; optimization; dispatch; thermal energy storage;

    Abstract : Concentrating solar power (CSP) plant is a promising technology that exploits direct normal irradiation (DNI) from the sun to be converted into thermal energy in the solar field. One of the advantages of CSP technology is the possibility to store thermal energy in thermal energy storage (TES) for later production of electricity. READ MORE

  4. 23. Investigating Sand Dune Location, Orientation and Geomorphometry Through GEOBIA-Based Mapping: A Case Study in Northern Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Melanie Stammler; [2020]
    Keywords : sand dunes; geomorphological mapping; object-based image analysis; landscape development; sanddyner; geomorfologisk kartläggning; geografisk objektbaserad bildanalys; landskapsutveckling;

    Abstract : Climate change has repeatedly been framed as the defining issue of the Anthropocene and with the Arctic changing at unpreceded speed need is high for a profound understanding of the Northern Swedish landscape. Northern Swedish aeolian sand dunes have been impacted by climatic changes throughout time. READ MORE

  5. 24. Finite Element Approximation of a Moving Boundary Problem Arising in the Modeling of the Spin Coating Process for Thin Films

    University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Author : Kristos Qiqi; [2020]
    Keywords : Moving boundary; FEM approximation; Navier-Stokes equations; Spin coating;

    Abstract : Using the Navier-Stokes equations along with a continuity equation, a one-dimensional model is developed to describe the spin coating process of thin polymeric films. The resulting model is a system of a parabolic partial differential equation coupled with an integral equation as well as with an ordinary differential equation describing the motion of a moving boundary. READ MORE

  6. 25. Propagation of Radio Waves in a Realistic Environment using a Parabolic Equation Approach

    University essay from Linköpings universitet/Teoretisk Fysik

    Author : Jonas Ehn; [2019]
    Keywords : Electromagnetic fields; wave propagation; radar; parabolic equation; split-step Fourier method;

    Abstract : Radars are used for range estimation of distant objects. They operate on the principle of sending electromagnetic pulses that are reflected off a target. This leads to the propagation of electromagnetic waves over large distances. As the waves propagate, they are affected by several aspects that decrease the performance of the radar system. READ MORE