Results 161 to 170 of about 1,753 (208)

Medical support of cosmonauts’ extravehicular activity

Herald of the Russian Academy of Sciences, 2015
March 18, 2015, was the 50th anniversary of the world’s first spacewalk. The man who performed this spacewalk was the Soviet cosmonaut A.A. Leonov, a participant in the Voskhod 2 space mission. In June of the same year, the American astronaut E. White, the pilot of the Gemini 4 vehicle, accomplished a spacewalk.
Anatolii Ivanovich Grigor’ev, Yurii Yur’evich Osipov, Georgii Ivanovich Samarin   +2 more
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Extravehicular Activity Task Work Efficiency

SAE Technical Paper Series, 2005
<div class="htmlview paragraph">Extravehicular activity (EVA) work efficiency is defined as a means to evaluate the on-orbit performance of the International Space Station (ISS) EVA support equipment system, worksite characteristics and basic layout of ISS for EVA maintenance.
Christopher A. Looper, Zane A. Ney
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Metabolic Responses to Simulated Extravehicular Activity

SAE Technical Paper Series, 1992
<div class="htmlview paragraph">Automatic control of the liquid cooling garment (LCG) worn by astronauts during extravehicular activity (EVA) would more efficiently regulate astronaut thermal comfort and improve astronaut productivity. An experiment was conducted in which subjects performed exercise profiles on a unique, supine upper body ...
Rebecca C. Williamson, Peter J. Sharer, Bruce W. Webbon, Lisa R. Rendon   +3 more
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Tactile Sensing Gloves for Extravehicular Activity

SAE Technical Paper Series, 2009
<div class="htmlview paragraph">Gloves are a critical element of the space suit used for extra-vehicular activity (EVA) since most work is done with the hands. The stiffness of the pressurized space suit limits the dexterity and flexibility of the astronauts' fingers, considerably depriving the fingertips of tactile sense of objects external to ...
Ji Son, Richard Fan, Christopher Wottawa, Warren Grundfest, Erik Dutson, Martin Culjat   +5 more
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Extravehicular activity suit penetration resistance

International Journal of Impact Engineering, 1999
The penetration resistance to hypervelocity impact (HVI) has been determined based on test and analysis for the extravehicular mobility unit (EMU) space suit used by astronauts to perform extravehicular activities (EVA). The suit is broadly divided into two categories: soft goods and hard goods depending on their flexibility. In the soft good category,
E.L. Christiansen, B.G. Cour-Palais, L.J. Friesen   +2 more
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Review of Extravehicular Activity for Shuttle Program

Proceedings of the Human Factors Society Annual Meeting, 1974
Extravehicular Activity (EVA) has been established during previous space programs as a capability of man to perform useful activities in deep space. These activities were used during the Gemini Program to meet limited mission objectives, but were developed during later programs into a basic capability for accomplishing major program objectives, as well
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Cooling Effects of Wearer-Controlled Vaporization for Extravehicular Activity

Aerospace Medicine and Human Performance, 2017
INTRODUCTION: The extravehicular activity suit currently used by the United States in space includes a liquid cooling and ventilation garment (LCVG) that controls thermal conditions. Previously, we demonstrated that self-perspiration for evaporative cooling (SPEC) garment effectively lowers skin temperature without raising humidity in the garment ...
Kunihiko, Tanaka, Daiki, Nagao, Kosuke, Okada, Koji, Nakamura   +3 more
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An automated tether management system for microgravity extravehicular activities

Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292), 2003
An automated tether system has been developed for the purpose of improving the efficiency of micro-gravity activities of fully suited astronauts. System features include gripping of multiple anchor types, remote release of the tether from an anchor, and controlled retraction of the tether. Two main mechanisms make up the system.
Mark A. Minor, Christopher R. Hirschi, Robert O. Ambrose   +2 more
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Mobility of an Elastic Glove for Extravehicular Activity Without Prebreathing

Aviation, Space, and Environmental Medicine, 2011
The current U.S. extravehicular activity (EVA) suit is pressurized at 0.29 atm, which is much lower than the pressures of sea level and inside a space station. Higher pressure can reduce the risk of decompression sickness (DCS), but mobility would be sacrificed.
Kunihiko, Tanaka, Mizuki, Ikeda, Yosuke, Mochizuki, Tetsuro, Katafuchi   +3 more
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Evaluation of Cardiac Rhythm Disturbances During Extravehicular Activity

The American Journal of Cardiology, 1997
This study represents the first systematic evaluation of dysrhythmias before, during, and after spaceflight including extravehicular activity (EVA). The data, based on 7 Shuttle crew members, revealed a nonsignificant decrease in ventricular and supraventricular ectopy during EVA, suggesting that the incidence of dysrhythmias is no greater during EVA ...
A C, Rossum, M L, Wood, S L, Bishop, H, Deblock, J B, Charles   +4 more
openaire   +2 more sources