Sökning: "gravity point"

Visar resultat 1 - 5 av 68 uppsatser innehållade orden gravity point.

  1. 1. The impact of economic sanctions on international trade in High-Tech products and semiconductors

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Simona Semenas; [2023]
    Nyckelord :gravity model; international trade; semiconductors; sanctions; Business and Economics;

    Sammanfattning : In 2018, the United States set in motion a comprehensive series of sanctions, which served as the catalyst for a notable technology and trade dispute. This dispute spanned a wide array of Chinese products, semiconductors among them, and marked a significant turning point in the evolving landscape of international commerce and technological competition. LÄS MER

  3. 2. Neutron backgrounds in neutrino-nucleus scattering at the European Spallation Source

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Författare :José Guilherme Rodrigues de Albuquerque Vale; [2023]
    Nyckelord :Neutrino-nucleus scattering; background; PHITS; weight window; ESS; Physics and Astronomy;

    Sammanfattning : Being, when built, the most powerful neutron accelerator in the world, there will be a large number of potential discoveries at the European Spallation Source (ESS) in Lund. One of the most exciting of these, from a particle physics point of view, is the Coherent Elastic Neutrino-Nucleus Scattering (CEνNS). LÄS MER

  4. 3. Gravity water waves over constant vorticity flows: from laminar flows to touching waves

    Master-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/Matematikcentrum

    Författare :Francisco Gonçalves Jorge Dias de Carvalho; [2023]
    Nyckelord :Partial differential equations; Water waves; Euler equations; Free boundary problem; Bifurcation theory; Nonlinear functional analysis; Hilbert transform; Mathematics and Statistics;

    Sammanfattning : In a recent paper, Hur and Wheeler proved the existence of periodic steady water waves over an infinitely deep, two-dimensional and constant vorticity flow and subject to gravity whose profile overhangs, among which, waves whose surface touches at a point, enclosing a bubble of air. We take this further, proving the existence of a continuous curve of water waves from a laminar flow up to a touching wave for fixed non-zero gravity. LÄS MER

  5. 4. Evaluation of structurally controlled rockfall hazard for underground excavations in seismically active areas of the Kiirunavaara mine

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Manuel Alberto Fuentes Espinoza; [2023]
    Nyckelord :Structurally controlled rockfalls; rockfalls due to seismic shaking; sublevel caving; fork layout; Unwedge; wedge analysis; deterministic analysis; probabilistic analysis;

    Sammanfattning : Sublevel caving operations at great depths are subjected both to large stress concentrations that are redistributed as the mining front progresses and to mining-induced seismicity. This is the case for Kiirunavaara mine, Sweden’s largest underground mine. LÄS MER

  7. 5. Lunar Gravity Assist for Electric Propulsion Satellite - For Moving Satellites to Build a Space Sunshade

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Love Dickéus; [2022]
    Nyckelord :Geoengineering; Electric Propulsion; Gravity Assist; Lunar Gravity Assist;

    Sammanfattning : One idea to stop the increasing threat of global warming is to build a space sunshade, made up of a constellation of satellites to reflect a portion of the sunlight. These satellites need to reach an equilibrium point where they can stay in orbit with minimal adjustments. LÄS MER