Essays about: "Excentricitet"

Showing result 6 - 9 of 9 essays containing the word Excentricitet.

  1. 6. Mean Motion Resonances and Planetary Scattering

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Erik Dahlöf; [2018]
    Keywords : mean motion resonance; orbit resonance; planetary dynamics; planet-planet scattering; planetary scattering; eccentricity; inclination; planet systems; disturbing force; orbit dynamics; orbital elements; planets; exoplanets; scattering phase; relaxation; dynamical instabilities; N-body; protoplanetary disk; planet migration; eccentricity damping; inclination damping; planet-disk interactions; Physics and Astronomy;

    Abstract : The observed distribution of giant exoplanet eccentricities and inclinations are significantly larger than what is measured for their Solar system analogues, Jupiter and Saturn. Since the first observations of exoplanets, planet-planet scattering has been proposed as a possible mechanism for exciting the eccentricities and inclinations of giant exoplanets. READ MORE

  3. 7. Study and Industrialization of Optimization Methods for Low-Thrust Orbital Maneuvers

    University essay from KTH/Optimeringslära och systemteori

    Author : Romain Boyer; [2016]
    Keywords : ;

    Abstract : Nowadays, the electric propulsion (low-thrust propulsion) is becoming more and more important in the aerospace industry. This technology allows to consume less propellant and consequently to build lighter satellites than with the chemical propulsion (high-thrust propulsion). READ MORE

  4. 8. Second-order FE Analysis of Axial Loaded Concrete Members According to Eurocode 2

    University essay from KTH/Betongbyggnad

    Author : Nessa Yosef Nezhad Arya; [2015]
    Keywords : Second-order; nonlinear; slender reinforced concrete column; ABAQUS; FE analysis; curvature method; nominal stiffness method; eccentrically loaded; benchmark experiment; parametric study; Andra ordningens effekt; icke-linjär; slank armerad betongpelare; ABAQUS; FE-modellering; krökningsmetoden; styvhetsmetoden; excentrisk last; utvärderingsförsök; parameterstudie;

    Abstract : A nonlinear finite element analysis was performed for an axial loaded reinforced concrete column subjected to biaxial bending taking into account second-order effects. According to Eurocode there are two ways to take second-order effects into consideration: nonlinear FE analysis and hand calculation based on the simplified methods explained in Eurocode 2. READ MORE

  5. 9. Palynology of Oligocene to middle Miocene sediments from ODP leg 159, site 959 offshore Ivory Coast, equatorial West Africa

    University essay from Lunds universitet/Geologiska institutionen

    Author : Elin Hult; [2009]
    Keywords : Palynomorphs; Oligocene; Miocene; ODP leg 159 site 959; Ivory Coast; palaeoenvironment; climate; Palynomorfer; Oligocen; Miocen; Elfenbenskusten; palaeomiljö; klimat; Earth and Environmental Sciences;

    Abstract : Oligocen och Miocen karaktäriseras av flera klimatoscillationer som följer de primära Milankovitchcyklerna men varierar i magnitud. Dinoflagellater är känsliga miljöindikatorer såväl som biostratigrafimarkörer, men deras användning som det föregående har i huvudsak varit begränsat till högre latituder. READ MORE