Sökning: "Orbital period"

Visar resultat 1 - 5 av 24 uppsatser innehållade orden Orbital period.

  1. 1. Vibration analysis and testing of a 6U cubesat propulsion system

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Likitha Thimmaraju Girijadevi; [2023]
    Nyckelord :6U CubeSat; Propulsion system; Vibration testing; COMSOL; Structures; ECSS; Stress; Resonance; Frequency; Load; Simulation.; 6U CubeSat; Framdrivningssystem; Vibrationstestning; COMSOL; Strukturer; ECSS; Stress; Resonans; Frekvens; Belastning; Simulering.;

    Sammanfattning : Space industry has been booming in the recent times, investments have not justbeen made on satellites and launch vehicles but also on space sustainability. Spaceindustry has its users in national agencies, private commercial agencies, academia andexperimental organisations. LÄS MER

  3. 2. Origin of blue straggler stars in the Milky Way halo

    Master-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Adam Brcek; [2023]
    Nyckelord :Blue Straggler; Galactic Halo; Spectroscopic Surveys; Binary Star Evolution; Mass Transfer; Physics and Astronomy;

    Sammanfattning : Blue straggler stars (BSSs) are exotic stellar objects that appear to be younger than the age of the population they come from suggests. They are observed as the extension of the main sequence stars, beyond the turn-off point. LÄS MER

  4. 3. Analysis and Design of a Microgravity Drop Tower

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Tristan Edwards; [2023]
    Nyckelord :drop tower; microgravity;

    Sammanfattning : A drop tower is a device that produces a microgravity environment by allowing an experiment to free fall for a short period of time, usually less than 10 seconds. Certain types of drop towers are also capable of reproducing the gravitational conditions of other celestial bodies, such as Lunar and Martian gravity. LÄS MER

  5. 4. POSSIBLE TIMING OF THE TRANSITION FROM PRE-INDUSTRIAL TO INDUSTRIAL CLIMATE IN THE CENTRAL TO NORTHERN OF SWEDEN, BASED ON PROXY DATA FROM TREE-RINGS

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Mika Falkensjö Oppenheim; [2022-09-28]
    Nyckelord :Tree-ring; maximum latewood density MXD ; Scandinavia; pre-industrial; industrial climate;

    Sammanfattning : Earth’s climate has varied through time, with orbital forcing as the most dominant force on the climate system the last million years, causing glacial-interglacial cycles. The last glacial period ended about 11.6 thousand years (kyr), ago and the last interglacial maximum around 6.5 kyr ago. LÄS MER

  7. 5. Identifying Transit Timing Variations in K2 and TESS light curves

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Linn Friis-Liby; [2022]
    Nyckelord :Exoplanets; TESS; K2; Transit Timing Variations;

    Sammanfattning : Aims. The aim of this work is to investigate any presence of transit timing variations (TTVs) in a sample of observed targets that has light curves in both K2 mission data and TESS mission data.  Methods. The original sample utilised here was one from the doctoral thesis of D. LÄS MER