Visas 11 541 - 11 560 av 15 864 resultat för sökning 'Earth', Sökningstid: 0,11s Förfina resultatet
  1. 11541
  2. 11542
  3. 11543
  4. 11544
  5. 11545

    Improvements to LEO Tracking on The Portable Telescope for Lasercom (PorTeL) av Harburg, Jacob F.

    Publicerad 2023
    “…This thesis focuses on updates made to PorTeL to enable it to receive optical downlinks from the CubeSat Laser Infrared CrosslinK (CLICK) mission satellites in low-Earth orbit (LEO). We show that PorTeL is able to track CLICK-A with an accuracy of 11.1 arcseconds, well within its requirement of 21.8 arcseconds.…”
    Hämta fulltext
    Hämta fulltext
    Lärdomsprov
  6. 11546
  7. 11547

    Heterogeneous Satellite Constellation Design for Cislunar Space Situational Awareness Using Real Options Analysis av Wachs, Jordan

    Publicerad 2023
    “…The number of commercial satellites in Low Earth Orbit (LEO) increased more than four-fold in the decade between 2011 and 2021, a trend that is likely to continue due to the combination of increasingly capable technologies and business models [23] [24]. …”
    Hämta fulltext
    Lärdomsprov
  8. 11548
  9. 11549
  10. 11550
  11. 11551

    Python-based tools for characterizing geosynchronous satellite behavior and evaluating maneuver prediction techniques av Solera, Haley Elizabeth

    Publicerad 2023
    “…Geosynchronous (GEO) satellites maneuver frequently to maintain their Earth-relative position despite drift incurred from natural perturbations, but quantifying their diverse maneuver patterns can be challenging. …”
    Hämta fulltext
    Lärdomsprov
  12. 11552

    Reduced-Order Atmospheric Density Modeling for LEO Satellite Orbital Reentry Prediction av Clark, Nicolette LeAnn

    Publicerad 2023
    “…Atmospheric density modeling and uncertainty quantification for fast and accurate orbit propagation are vital to drag force estimation for satellite reentry prediction and conjunction assessment in today's increasingly cluttered Low Earth Orbit (LEO) environment. Current density models can be computationally expensive, and often contain large errors, which make density modeling a leading cause of uncertainty in drag estimation. …”
    Hämta fulltext
    Lärdomsprov
  13. 11553

    On the Atmospheric Saliency of Space Debris Reentries: Estimating Distribution, Lifetime and Radiative Forcing of Reentry-Ablated Alumina av Jain, Asha Kailin

    Publicerad 2023
    “…As the space economy grows, numerous satellite operators are looking to build megaconstellations in Low Earth Orbit (LEO). These megaconstellations are expected to have hundreds to thousands of satellites operating in altitudes from 350km to 650km. …”
    Hämta fulltext
    Lärdomsprov
  14. 11554

    Design Options to Address Submersion Criticality for Low-Enriched Uranium Nuclear Thermal Propulsion Rocket av Moore, Michael Kenneth

    Publicerad 2023
    “…Missions to Mars with eventual establishment of a Mars base/colony will require a versatile and consistent transportation method between Earth and Mars. Nuclear thermal propulsion (NTP) is well suited to be the main propulsion mechanism for interspace travel due to its high specific impulse. …”
    Hämta fulltext
    Lärdomsprov
  15. 11555

    Innovation Challenges in NASA’s Planetary Program and a Policy Framework for Sustainable and Equitable Space Resource Utilization av Nasr, Maya

    Publicerad 2023
    “…Drawing from lessons learned from resource governance on Earth and historical policies, the research recommended best approaches for policy and governance for space resources. …”
    Hämta fulltext
    Hämta fulltext
    Lärdomsprov
  16. 11556

    Unsettling Roads : Ethnographies of Dust across Rural Nepal av Bhandari, Shubhekshya

    Publicerad 2023
    “…How can geological speeds and collisions of earth and life be visualized and their conflicts rendered? …”
    Hämta fulltext
    Lärdomsprov
  17. 11557

    Annealing Cryogenically Irradiated High TemperatureSuperconductors with Current Pulses av Fisher, Zoe Lilah

    Publicerad 2023
    “…Tokamak fusion power plants rely on electrogmanets engineered from high temperature superconductors (HTS) made of Rare Earth Barium Copper Oxide (REBCO) to confine a thermonuclear grade plasma. …”
    Hämta fulltext
    Lärdomsprov
  18. 11558

    Time traveling––An intuitive grasp of time takes time av Cavicchi, Elizabeth

    Publicerad 2023
    “…On later autumn days, they marked that pillar’s shadow in another color and discussed what these chalk marks revealed about sun, earth and the seasons. A hollow tube exposed the motion of stars; an astrolabe provided a window into the world of ancient observers; the Greek Antikythera mechanism posed an unsolvable puzzle from the past. …”
    Hämta fulltext
    Artikel
  19. 11559
  20. 11560