Reinforcement learning based variable damping control of wearable robotic limbs for maintaining astronaut pose during extravehicular activity [PDF]
Frontiers in Neurorobotics, 2023 As astronauts perform on-orbit servicing of extravehicular activity (EVA) without the help of the space station’s robotic arms, it will be rather difficult and labor-consuming to maintain the appropriate position in case of impact. In order to solve this
Sikai Zhao +4 more
doaj +2 more sources
Planetary extravehicular activity (EVA) risk mitigation strategies for long-duration space missions [PDF]
npj Microgravity, 2021 Extravehicular activity (EVA) is one of the most dangerous activities of human space exploration. To ensure astronaut safety and mission success, it is imperative to identify and mitigate the inherent risks and challenges associated with EVAs.
Blaze Belobrajdic +2 more
doaj +2 more sources
Modular Robotic Limbs for Astronaut Activities Assistance [PDF]
Sensors, 2021 In order to meet the assist requirements of extravehicular activity (EVA) for astronauts, such as moving outside the international space station (ISS) or performing on-orbit tasks by a single astronaut, this paper proposes an astronaut robotic limbs ...
Sikai Zhao +6 more
doaj +2 more sources
Identifying cognitive capabilities required for optimal surface extravehicular activity performance [PDF]
npj MicrogravitySurface extravehicular activity (EVA) is one of the most cognitively demanding actions that astronauts can execute. Decrements in cognitive performance present an important risk to crew safety, yet there is currently insufficient data to characterize the
Steven R. Anderson +2 more
doaj +2 more sources
Characterizing cognitive workload during simulated surface extravehicular activity with integrated virtual reality [PDF]
Frontiers in PsychologyIntroductionHigh cognitive workload presents an important risk to crew safety during surface exploration extravehicular activity (EVA). However, it remains difficult to draw conclusions about the precise EVA task characteristics that are associated with ...
Steven R. Anderson +12 more
doaj +2 more sources
Effects of hypoxia/hyperoxia exposure on immune function – results from a spacecraft-relevant hypobaric chamber study [PDF]
Frontiers in PhysiologyIntroductionAlthough the International Space Station provides a normoxic environment, deep space missions are expected to leverage a hypobaric, mildly hypoxic living environment to facilitate frequent extravehicular activities EVAs, aka spacewalks ...
Brian Crucian +13 more
doaj +2 more sources
Using 13N2 and PET to track in vivo nitrogen gas kinetics during normobaric conditions [PDF]
Frontiers in PhysiologyIntroductionDecompression sickness (DCS) during extravehicular activity in space or after diving is caused by gaseous nitrogen. The pathophysiology is still not fully understood, as mechanisms of dissolved gas uptake and bubble development are ...
Edward T. Ashworth +4 more
doaj +2 more sources
Congestion and Sinonasal Illness in Outer Space: A Study on the International Space Station [PDF]
Laryngoscope Investigative OtolaryngologyObjectives This study aims to characterize quantitative data pertaining to sinonasal symptoms and their related medication use aboard the International Space Station (ISS).
Faizaan Khan +12 more
doaj +2 more sources
Aerospace, 2023 The special use environment and uncertainty of extravehicular activities (EVAs) make it difficult to predict the lifetime consumption of extravehicular spacesuits in the traditional way. This paper presents a flexible reliability dynamic simulation model
Yuehang Sun, Yun-Ze Li, Man Yuan
doaj +1 more source
Frontiers in Physiology, 2022 ObjectiveBy understanding the physiological demands of different types of tasks that will be performed during extravehicular activity (EVA) on Mars, human performance safety risks can be mitigated.
Jordan R. Hill, Barrett S. Caldwell
doaj +1 more source