Essays about: "spaceflight."

Showing result 1 - 5 of 9 essays containing the word spaceflight..

  1. 1. Chromatin accessibility analysis of spaceflight mouse brains using ArchR

    University essay from KTH/Genteknologi

    Author : Raphaël Mauron; [2023]
    Keywords : Single nuclei ATAC-sequencing; Space Biology; DNA Chromatin accessibility; Neurodegenerative; ArchR; ATAC-sekvensering av enskilda kärnor; rymdbiologi; tillgänglighet av DNA kromatin ; neurodegenerativa sjukdomar; ArchR;

    Abstract : Mänsklig utforskning av månen och Mars innebär stora utmaningar för människans fysiologi och hälsa på grund av de unika miljöfaktorer som följer av långvariga rymduppdrag. Rymdbiologiska experiment har blivit ett viktigt verktyg för att studera effekterna som mikrogravitation och rymdstrålning har på levande organismer, i syfte att förstå och minska dessa utmaningar. READ MORE

  3. 2. Electric propulsion of satellites as an alternative for implementation of a sunshade system

    University essay from KTH/Fysik

    Author : Maheen Arfan; Isabelle Bonnier; [2022]
    Keywords : Geoengineering; Sunshade system; Electric propulsion; Orbital mechanics; Sub-lagrange;

    Abstract : As an alternative solution to global warming, this thesis explores the possibility of aspace-based geoengineering scheme that may prove worthwhile to implement in parallel toother environmental efforts that help mitigate impact of climate change. One suggestionof a geoengineering solution is deploying a large number of sunshades in the vicinity ofthe first Lagrange point of the Sun-Earth system, and this prospective sunshade projectwould serve to shield Earth from incident solar radiation. READ MORE

  4. 3. Spatially resolved gene expression profiling of mouse brain tissue to study the impact of spaceflights

    University essay from KTH/Proteinvetenskap

    Author : Paula Frieberg; [2021]
    Keywords : spaceflight; space biologu; Spatial Transcriptomics; mouse brain tissue; mitochondria;

    Abstract : Since the first human spaceflight in 1961, hundreds of humans have been in space. Microgravity and high radiation are the main spaceflight hazards. The space environment is known to impact several aspects of human health, such as bone density and cognitive performance. READ MORE

  5. 4. Sunshade Demonstrator Spacecraft Earth Sphere of Influence Escape Using a Propellant-free AOCS

    University essay from KTH/Rymdteknik

    Author : Leonardo Ricci; [2021]
    Keywords : Solar sail; Solar radiation pressure; Attitude control; Escape trajectory; Centre of pressure; Disturbance Torques; Eclipse.; Solsegel; Solstrålningstryck; Attitydkontroll; Flyktbana; Tryckcentrum; Störningsmoment; Eclipse.;

    Abstract : This thesis provides insights to what is peculiar about a solar sail attitude and orbit control system and provides the assessment, in the form of a feasibility study, of the effectiveness of sail tip vanes as a control hardware to escape the Earth sphere of influence. The demonstrator aims to prove the technology for the Sunshade project, a constellation of solar sails located at the Lagrangian point L1 to obscure part of the solar radiation directed towards earth. READ MORE

  6. 5. The Aurora : What will space tourism look like in 2040?

    University essay from Umeå universitet/Designhögskolan vid Umeå universitet

    Author : Tyler Macdonald; [2018]
    Keywords : Future Space Tourism Vehicle Design;

    Abstract : What is Space Tourism? Space Tourism is when humans venture past 100km above the earth for recreational purposes. It could be for the view or just the thrill, either way space has captured our imaginations ever since we could look up and ask what is beyond our sky. What has happened in the past 10 years in the rocket industry has been amazing. READ MORE