Essays about: "Gravity Model"

Showing result 21 - 25 of 348 essays containing the words Gravity Model.

  1. 21. Trajectory Optimisation of a Spacecraft Swarm Maximising Gravitational Signal

    University essay from KTH/Optimeringslära och systemteori

    Author : Rasmus Maråk; [2023]
    Keywords : Spacecraft Swarms; Trajectory Optimisation; Impulsive Manoeuvres; Evolutionary Algorithms; Polyhedral Gravity Model; Small Body Exploration; Discrete Spherical Grids; Svärmande rymdfarkoster; Banoptimering; Impulsiva manövrar; Evolutionära Algoritmer; Polyhedral gravitationsmodell; Utforksning av små kroppar i solsystemet; Diskreta sfäriska rutnät;

    Abstract : Proper modelling of the gravitational fields of irregularly shaped asteroids and comets is an essential yet challenging part of any spacecraft visit and flyby to these bodies. Accurate density representations provide crucial information for proximity missions, which rely heavily on it to design safe and efficient trajectories. READ MORE

  3. 22. Gravitational Decoherence in Macroscopic Quantum Systems

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Niklas Engelhardt Önne; [2023]
    Keywords : decoherence; gravitational decoherence; quantum mechanics; quantum physics; macroscopic quantum mechanics; macroscopic quantum physics; gravity; general relativity; gravitational time dilation; quantum-to-classical transition; nonrelativistic quantum mechanics; quantum gravity; dekoherens; gravitationell dekoherens; kvantmekanik; kvantfysik; makroskopisk kvantmekanik; makroskopisk kvantfysik; gravitation; allmän relativitetsteori; gravitationell tidsdilatation; övergången från kvantfysik till klassisk fysik; ickerelativistisk kvantmekanik; kvantgravitation;

    Abstract : The problem of how quantum mechanics gives rise to classicality has been debated for more than a century. A commonly proposed solution is decoherence, i.e. the gradual decay of superpositions in open quantum systems due to their inevitable interaction with their environment. READ MORE

  4. 23. Digitalised Combats and Their Impact on Social Sustainability in Kenya and Nigeria

    University essay from Försvarshögskolan

    Author : Roland Aszalós; [2023]
    Keywords : Africa; digitalisation; digital transformation; combats; social sustainability; terrorism; al-Shabaab; Boko Haram; peacekeeping; securitisation; Centre of Gravity; cyber warfare; cryptocurrency; dark web; social media;

    Abstract : In our era, digital technology is one of the fastest-changing areas. It impacts our private life, well-being, economics, politics and warfare. This essay intends to answer how digital transformation affects combats and state and non-state actors and also how these digitalised combats compromise social sustainability. READ MORE

  5. 24. Ageing Populations and World Trade: Blight or Blessing?

    University essay from Lunds universitet/Ekonomisk-historiska institutionen

    Author : Elise Meijer; [2023]
    Keywords : Population ageing; international trade; gravity model of international trade; Business and Economics;

    Abstract : Since the last half of the twentieth century, population ageing has increasingly become a problem for countries all over the world. The literature on population ageing is very well- established, however, it is lacking in one significant respect. That is, hardly any research has been done on how population ageing may affect international trade. READ MORE

  6. 25. Aid and Trade - An Empirical Analysis of the Impact of European Development Aid on Donor’s Exports

    University essay from Lunds universitet/Nationalekonomiska institutionen

    Author : Kai Endres; Cathal Patrick Greally; [2023]
    Keywords : gravity model; development aid; exports; PPML; fixed effects; trade; Business and Economics;

    Abstract : This study examines the relationship between development aid and trade, specifically focusing on the impact of aid on exports for 14 European donor countries committed to allocating 0.70% of their Gross National Income (GNI) to official development assistance (ODA). The 14 selected countries account for 41.5% of global ODA disbursements. READ MORE