scholarly journals Reducing the Specular Properties of Metalized Teflon Coverings on Canadian Mobile Servicing Station on the International Space Station

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Jacob Kleiman
Keyword(s):  
Surface Modification ◽  
International Space Station ◽  
Atomic Oxygen ◽  
Ion Beam ◽  
Space Station ◽  
Space Environment ◽  
Textured Surfaces ◽  
Solar Absorptance ◽  
International Space ◽  
Modification Process

A surface modification process was developed for the metalized Teflon coverings used for thermal protection of electronic equipment on the International Space Station [1]. The developed modification process of Teflon surfaces reduced substantially the specularity of Ag-Inconel coated Teflon thermal control films by changing the morphological appearance of their surfaces by ion-beam texturing in a controlled manner from a metallic-like and shiny to complete milky, white appearance without significantly affecting the thermal optical properties. A number of space hardware units covered with the textured Silver-Teflon were exposed to the open space environment between June 2002 and June 2006 and delivered back to Earth at the end of 2006. Remarkable performance was demonstrated by the treated Ag/Teflon, with the solar absorptance and total emittance values and the α/ε ratio remaining very close to the original values as measured before the flights [2]. In an attempt to protect further the textured surfaces of Teflon from possible erosion by atomic oxygen and VUV in LEO environment, an additional novel surface modification process was developed that created an SixOyCzFn type of structure on the treated surface. The textured Teflon samples before and after surface treatments were tested in a space simulator facility under a combined atomic oxygen/vacuum ultraviolet exposure.  A number of advanced characterization techniques were used to evaluate the properties of the modified films [3].

Conceptual Design of an Experiment for the International Space Station About Shape Memory Composite in Space Environment

2017 ◽  
Author(s):  
Loredana Santo ◽  
Denise Bellisario ◽  
Giovanni Matteo Tedde ◽  
Fabrizio Quadrini
Keyword(s):  
Shape Memory ◽  
International Space Station ◽  
Space Station ◽  
Sun Exposure ◽  
Aging Effect ◽  
Space Environment ◽  
Aging Effects ◽  
Solar Sails ◽  
International Space ◽  
Shape Memory Composite

Shape memory polymers (SMP) and composites (SMPC) may be used for many applications in Space, from self-deployable structures (such as solar sails, panels, shields, booms and antennas), to grabbing systems for Space debris removal, up to new-concept actuators for telescope mirror tuning. Experiments on the International Space Station are necessary for testing prototypes in relevant environment, above all for the absence of gravity which affects deployment of slender structures but also to evaluate the aging effects of the Space environment. In fact, several aging mechanisms are possible, from polymer cracking to cross-linking and erosion, and different behaviors are expected as well, from consolidating the temporary shape to composite degradation. Evaluating the possibility of shape recovery because of sun exposure is another interesting point. In this study, a possible experiment on the ISS is shown with the aim of evaluating the aging effect of Space on material performances. The sample structure is described as well as the testing strategy.

Thermoelectric Applications as Related to Biomedical Engineering for Nasa Johnson Space Center

1997 ◽  
Vol 478 ◽  
Author(s):  
C. D. Kramer ◽  
P.E.
Keyword(s):  
International Space Station ◽  
Space Station ◽  
Space Environment ◽  
Space Applications ◽  
International Space ◽  
Future Technology ◽  
Technological Developments ◽  
Environment Noise ◽  
Scientific Value

AbstractThis paper presents current NASA biomedical developments and applications using thermoelectrics. Discussion will include future technology enhancements that would be most beneficial to the application of thermoelectric technology.A great deal of thermoelectric applications have focused on electronic cooling. As with all technological developments within NASA, if the application cannot be related to the average consumer, the technology will not be mass-produced and widely available to the public (a key to research and development expenditures and thermoelectric companies). Included are discussions of thermoelectric applications to cool astronauts during launch and reentry. The earth-based applications, or spin-offs, include such innovations as tank and race car driver cooling, to cooling infants with high temperatures, as well as, the prevention of hair loss during chemotherapy. In order to preserve the scientific value of metabolic samples during long-term space missions, cooling is required to enable scientific studies. Results of one such study should provide a better understanding of osteoporosis and may lead to a possible cure for the disease.In the space environment, noise has to be kept to a minimum. In long-term space applications such as the International Space Station, thermoelectric technology provides the acoustic relief and the reliability for food, as well as, scientific refrigeration/freezers. Applications and future needs are discussed as NASA moves closer to a continued space presence in Mir, International Space Station, and Lunar-Mars Exploration.

The Constrained Vapor Bubble Experiment: Results From the International Space Station

2011 ◽  
Author(s):  
Arya Chatterjee ◽  
Joel L. Plawsky ◽  
Peter C. Wayner ◽  
David F. Chao ◽  
Ronald J. Sicker ◽  
...  
Keyword(s):  
Heat Pipe ◽  
International Space Station ◽  
Vapor Bubble ◽  
Space Station ◽  
Optical Measurements ◽  
Space Environment ◽  
Working Fluid ◽  
Operating Characteristics ◽  
International Space ◽  
Constrained Vapor Bubble

The constrained vapor bubble (CVB) experiment is an experiment in thermal fluid science currently operating on the International Space Station. Flown as the first experiment on the Fluids Integrated Rack on the Destiny module of the US part of the space station, the experiment promises to provide new and exciting insights into the working of a wickless micro heat pipe in the micro-gravity environment. The CVB consists of a relatively simple setup — a quartz cuvette with sharp corners partially filled with pentane as the working fluid. Along with temperature and pressure measurements, the curvature of the pentane menisci formed at the corners of the cuvette can be determined using optical measurements. This is the first time the data collected in space environment is being presented to the public. The data shows that, while the performance of the CVB heat pipe is enhanced due to increased fluid flow, the loss of convection as a heat loss mechanism in the space environment, leads to some interesting consequences. We present some significant differences in the operating characteristics of the heat pipe between the space and Earth’s gravity environments and show that this has important ramifications in designing effective radiators for the space environment.

Passive Space-Environment-Effect Measurement on the International Space Station

2009 ◽  
Vol 46 (1) ◽  
pp. 22-27 ◽  
Author(s):  
Yugo Kimoto ◽  
Keiichi Yano ◽  
Junichiro Ishizawa ◽  
Eiji Miyazaki ◽  
Ichiro Yamagata
Keyword(s):  
International Space Station ◽  
Space Station ◽  
Space Environment ◽  
Effect Measurement ◽  
Environment Effect ◽  
International Space

scholarly journals Draft Genome Sequences of Lactobacillales Isolated from the International Space Station

2020 ◽  
Vol 9 (39) ◽  
Author(s):  
Achintya R. Bharadwaj ◽  
Nitin K. Singh ◽  
Jason M. Wood ◽  
Marilyne Debieu ◽  
Niamh B. O’Hara ◽  
...  
Keyword(s):  
International Space Station ◽  
Pathogenic Bacteria ◽  
Draft Genome ◽  
Space Station ◽  
Space Environment ◽  
Extreme Conditions ◽  
Whole Genome ◽  
Genome Sequences ◽  
International Space

ABSTRACT Nineteen strains from the order Lactobacillales were isolated from the International Space Station and commercial resupply vehicle, and whole-genome sequences (WGS) were generated. WGS would permit the characterization of these potentially pathogenic bacteria that have been adapting to the extreme conditions of the space environment.

scholarly journals Draft Genome Sequences of Enterobacteriales Strains Isolated from the International Space Station

2020 ◽  
Vol 9 (37) ◽  
Author(s):  
Achintya R. Bharadwaj ◽  
Robert Daudu ◽  
Nitin K. Singh ◽  
Jason M. Wood ◽  
Marilyne Debieu ◽  
...  
Keyword(s):  
International Space Station ◽  
Pathogenic Bacteria ◽  
Draft Genome ◽  
Space Station ◽  
Space Environment ◽  
Whole Genome ◽  
Genome Sequences ◽  
International Space

ABSTRACT The whole-genome sequences of 26 strains isolated from the International Space Station were generated, and the strains were identified as being members of the order Enterobacteriales. Characterization of these whole-genome sequences might enable the identification of potential pathogenic bacteria that have been adapting to the space environment.

scholarly journals Multimedia Interaktif 3 Dimensi Pengenalan Stasiun Luar Angkasa International Space Station (Iss)

2019 ◽  
Vol 1 (1) ◽  
pp. 22-32
Author(s):  
Lalu Jayeng Rusiandi Putra ◽  
Danang Tejo Kumoro
Keyword(s):  
High Schools ◽  
International Space Station ◽  
Print Media ◽  
Interactive Multimedia ◽  
Space Station ◽  
Modern Science ◽  
Space Environment ◽  
Main Function ◽  
International Space ◽  
And Function

International Space Station (ISS) is one of the greatest achievements in modern science especially in astronomy and engineering. The main function of the ISS is as an aerospace laboratory to conduct research and experiments related to the space environment which can not be done on earth. For the students in high schools, especially in MA Nurul Iman, there are still many who do not know the existence and function of the details of International Space Station (ISS). Therefore, it needs an interactive recognition media where users can see and know the function of the ISS more clearly and more interactive than the video or print media. The result of this thesis is an interactive multimedia introduction of International Space Station (ISS) International Space Station (ISS) the ISS and the ISS station parts functions. The results that can be drawn from making this application are effective for use as information medium introducing International Space Station (ISS).

Sign in / Sign up

Export Citation Format

Share Document