Application of 3D Printing in Future Manned Space Exploration

2020 ◽  
Vol 982 ◽  
pp. 92-97
Author(s):  
Ying Yi Zhang ◽  
Zhao Jun Jin ◽  
Wei Zhang

3D Printing in space has shown obvious advantages in several fields such as on-ground or in-situ manufacturing, space supplies, reducing spares and transportation, emergency response and promoting deep space exploration. This paper analyzes the application modes and technology development trend of 3D Printing in space. Based on the investigation of the current situation, technical plans and the potential development of 3D Printing in space, the article proposed a technical path suitable for the development of 3D printing in space.

2018 ◽  
Vol 12 (7-8) ◽  
pp. 38-45
Author(s):  
A. N. EFREMOV ◽  
N. V. PLIKINA ◽  
T. ABELI

Rare species are most vulnerable to man-made impacts, due to their biological characteristics or natural resource management. As a rule, the economic impact is associated with the destruction and damage of individual organisms, the destruction or alienation of habitats. Unfortunately, the conservation of habitat integrity is an important protection strategy, which is not always achievable in the implementation of industrial and infrastructural projects. The aim of the publication is to summarize the experience in the field of protection of rare species in the natural habitat (in situ), to evaluate and analyze the possibility of using existing methods in design and survey activities. In this regard, the main methodological approaches to the protection of rare species in the natural habitat (in situ) during the proposed economic activity were reflected. The algorithm suggested by the authors for implementing the in situ project should include a preparatory stage (initial data collection, preliminary risk assessments, technology development, obtaining permitting documentation), the main stage, the content of which is determined by the selected technology and a long monitoring stage, which makes it possible to assess the effectiveness of the taken measures. Among the main risks of in situ technology implementation, the following can be noted: the limited resources of the population that do not allow for the implementation of the procedure without prior reproduction of individuals in situ (in vitro); limited knowledge of the biology of the species; the possibility of invasion; the possibility of crossing for closely related species that сo-exist in the same habitat; social risks and consequences, target species or population may be important for the local population; financial risks during the recovery of the population. The available experience makes it possible to consider the approach to the conservation of rare species in situ as the best available technology that contributes to reducing negative environmental risks.


2019 ◽  
Author(s):  
JiUn Lee ◽  
SooJung Chae ◽  
Hyeongjin Lee ◽  
GeunHyung Kim
Keyword(s):  

Author(s):  
James F. Soeder ◽  
Anne Mcnelis ◽  
Raymond Beach ◽  
Nancy McNelis ◽  
Timothy Dever ◽  
...  

2021 ◽  
pp. 109791
Author(s):  
Ievgenii Liashenko ◽  
Alberto Ramon ◽  
Andreu Cabot ◽  
Joan Rosell-Llompart
Keyword(s):  

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
J. N. Chung ◽  
Jun Dong ◽  
Hao Wang ◽  
S. R. Darr ◽  
J. W. Hartwig

AbstractThe extension of human space exploration from a low earth orbit to a high earth orbit, then to Moon, Mars, and possibly asteroids is NASA’s biggest challenge for the new millennium. Integral to this mission is the effective, sufficient, and reliable supply of cryogenic propellant fluids. Therefore, highly energy-efficient thermal-fluid management breakthrough concepts to conserve and minimize the cryogen consumption have become the focus of research and development, especially for the deep space mission to mars. Here we introduce such a concept and demonstrate its feasibility in parabolic flights under a simulated space microgravity condition. We show that by coating the inner surface of a cryogenic propellant transfer pipe with low-thermal conductivity microfilms, the quenching efficiency can be increased up to 176% over that of the traditional bare-surface pipe for the thermal management process of chilling down the transfer pipe. To put this into proper perspective, the much higher efficiency translates into a 65% savings in propellant consumption.


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