Advanced search

Showing result 1 - 5 of 384 essays matching the above criteria.

  1. 1. Modeling wave behavior with linear wave theory

    University essay from Umeå universitet/Institutionen för fysik

    Author : Elsa Renström; [2024]
    Keywords : ;

    Abstract : This thesis aimed to look at the behaviours of the water beneath waves from a modeling and simulations point of view. We have investigated how to use Linear wave theory (LWT) to model the kinematic movements in water governed by free ocean waves. The model assumes the surface to consist of a superposition of sinusoidal waves. READ MORE

  3. 2. Oscillations in a complex sunspot: From theory to data

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Femke Kranenbarg; [2024]
    Keywords : ;

    Abstract : Sunspot oscillations, intricate three-dimensional wave-like motions in the solar atmosphere, result from the complex interplay between plasma and magnetic fields. This study delves into the behaviour of these oscillations, exploring their simultaneous excitation and evaluating their impact on solar phenomena like coronal heating, energy transport, and solar flares. READ MORE

  4. 3. From war in one country to a school desk in another: Ukrainian refugee children in the Swedish school: Examining Swedish teachers experienced level of qualification in regard to meeting the needs of Ukrainian refugee children as victims of trauma.

    University essay from Göteborgs universitet/Institutionen för globala studier

    Author : Hannah Eklund; [2023-10-18]
    Keywords : refugees; trauma; transforming care; Sweden;

    Abstract : Following the most recent wave of refugees in today’s world, the purpose of this qualitative and interpretative study is to examine Swedish teachers experience of their own level of qualification in regard to being able to meet the needs of Ukrainian refugee children. The analysis is based on the definition of said needs from the perspective of trauma care and as formulated by the model Transforming Care. READ MORE

  5. 4. Parabolic equation models simulating LoS MIMO conditions

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Author : Zarafshan Carneil; [2023]
    Keywords : MIMO; channel capacity; phase difference; MIMO phase;

    Abstract : This thesis explores and develops a simulation model for Line of Sight(LoS) Multiple-Input Multiple-Output (MIMO) systems in complex environments. The focus will be on implementing a 2 × 2-MIMO system in order to study phase differences of the received signals. READ MORE

  6. 5. Wavelength-dependent limb darkeningin the analysis oftransit spectroscopy of exoplanets

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Alberto García Ribas; [2023]
    Keywords : ;

    Abstract : Limb darkening, an optical effect characteristic of stars, where the limb (edge) seemsto be darker than the centre of the stellar body; plays an important role in our under-standing of exoplanetary transits, as it is fundamental for developing light curve modelsthat can help to undercover extrasolar companions. To recover atmospheric featuresfrom exoplanets, a principal component analysis method is typically used. READ MORE