scholarly journals CO2 Washout Testing of the REI and EM-ACES Space Suits

Author(s):  
Kathryn Mitchell ◽  
Jason Norcross
Keyword(s):  
Author(s):  
Yaritza Bernal ◽  
K. Han Kim ◽  
Elizabeth Benson ◽  
Sarah Jarvis ◽  
Lauren Harvill ◽  
...  

The objective of this study was to develop and deploy a novel motion capture system that utilizes off-the-shelf, dive-rated hardware to measure 3-D whole body reach envelopes of space suits in an underwater analog, which simulates a microgravity environment. The accuracy of the developed system was compared to a gold standard motion capture system in a dry-land condition before deployment. This study is ultimately aimed at providing a methodology for quantitative metrics to evaluate and compare the mobility performances of a newly developed prototype space suit versus an existing space suit at the Neutral Buoyancy Laboratory (NBL) at NASA’s Johnson Space Center.


2016 ◽  
Vol 16 (4) ◽  
pp. 328-342
Author(s):  
M.V. Tarasashvili ◽  
Sh.A. Sabashvili ◽  
S.L. Tsereteli ◽  
N.D. Aleksidze ◽  
O. Dalakishvili

AbstractThe Mars Climate Simulation Chamber (MCSC) (GEO PAT 12 522/01) is designed for the investigation of the possible past and present habitability of Mars, as well as for the solution of practical tasks necessary for the colonization and Terraformation of the Planet. There are specific tasks such as the experimental investigation of the biological parameters that allow many terrestrial organisms to adapt to the imitated Martian conditions: chemistry of the ground, atmosphere, temperature, radiation, etc. MCSC is set for the simulation of the conduction of various biological experiments, as well as the selection of extremophile microorganisms for the possible Settlement, Ecopoesis and/or Terraformation purposes and investigation of their physiological functions. For long-term purposes, it is possible to cultivate genetically modified organisms (e.g., plants) adapted to the Martian conditions for future Martian agriculture to sustain human Mars missions and permanent settlements. The size of the chamber allows preliminary testing of the functionality of space-station mini-models and personal protection devices such as space-suits, covering and building materials and other structures. The reliability of the experimental biotechnological materials can also be tested over a period of years. Complex and thorough research has been performed to acquire the most appropriate technical tools for the accurate engineering of the MCSC and precious programmed simulation of Martian environmental conditions. This paper describes the construction and technical details of the equipment of the MCSC, which allows its semi-automated, long-term operation.


PLoS ONE ◽  
2009 ◽  
Vol 4 (8) ◽  
pp. e6614 ◽  
Author(s):  
Christopher E. Carr ◽  
Jeremy McGee
Keyword(s):  

JAMA ◽  
1986 ◽  
Vol 256 (15) ◽  
pp. 2033-2034
Author(s):  
C. A. Raymond
Keyword(s):  

2020 ◽  
Vol 9 (12) ◽  
pp. 3832
Author(s):  
Massa Zantah ◽  
Aloknath Pandya ◽  
Michael R. Jacobs ◽  
Gerard J. Criner

High-flow nasal therapy (HFNT) is a unique system that delivers humidified, heated oxygen-enriched air via nasal cannula at high flow rates. It is a promising therapy for chronic obstructive pulmonary disease (COPD) patients. Several studies have examined the physiologic effects of this therapy in the patient population and have revealed that it improves mucociliary clearance, reduces nasopharyngeal dead space, and subsequently increases CO2 washout. It also improves alveolar recruitment and gas exchange. These mechanisms may explain the promising results observed in recently published studies that examined the role of HFNT in stable COPD patients.


2018 ◽  
Vol 33 (5) ◽  
pp. 1524-1529 ◽  
Author(s):  
Praveen Vijaysegaran ◽  
Luke D. Knibbs ◽  
Lidia Morawska ◽  
Ross W. Crawford
Keyword(s):  

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