Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Edward A. Sechkar"'
Publikováno v:
High Performance Polymers. 20:371-387
A total of thirty-one samples were included in the National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) Polymer Film Thermal Control (PFTC) and Gossamer Materials experiments, which were exposed to the low Earth orbit envi
Publikováno v:
55th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
Solar concentrators are envisioned for use in a variety of space-based applications, including applications involving in situ resource utilization. Identifying solar concentrators that minimize mass and cost are of great interest, especially since la
Autor:
Mark J. Forkapa, Bruce A. Banks, Sharon K. Rutledge, Kevin Malinowski, Thomas J. Stueber, Edward A. Sechkar
Publikováno v:
Journal of the American Institute for Conservation. 39:65-74
The noncontact technique that is described uses atomic oxygen, generated under low pressure in the presence of nitrogen, to remove soot and charred varnish from the surface of a painting. The process, which involves surface oxidation, permits control
Publikováno v:
Protection of Materials and Structures From the Space Environment ISBN: 9783642302282
When exposed to low Earth orbit (LEO) environment, external spacecraft materials degrade due to radiation, thermal cycling, micrometeoroid and debris impacts, and interaction with atomic oxygen (AO). Collisions between AO and spacecraft can result in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::296fd38766e6c1c1ecb2648aee885620
https://doi.org/10.1007/978-3-642-30229-9_3
https://doi.org/10.1007/978-3-642-30229-9_3
Publikováno v:
Protection of Materials and Structures From the Space Environment ISBN: 9783642302282
Black Kapton XC polyimide was flown as part of the Polymer Film Tensile Experiment (PFTE) on Materials International Space Station Experiment 6 (MISSE 6). The purpose of the experiment was to expose a variety of polymer films, typical of those used f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f5f99ac045c37e74c19696e721e5597
https://doi.org/10.1007/978-3-642-30229-9_25
https://doi.org/10.1007/978-3-642-30229-9_25
Publikováno v:
Protection of Materials and Structures From the Space Environment ISBN: 9783642302282
Experiments have been conducted in low Earth orbit (LEO) on the Long Duration Exposure Facility (LDEF) and the Materials International Space Station Experiment 2 (MISSE 2) that involved slightly stretched polymers held at their perimeters. In several
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5e0de6cdba8a0001a36e818c396f33c
https://doi.org/10.1007/978-3-642-30229-9_5
https://doi.org/10.1007/978-3-642-30229-9_5
Publikováno v:
9th Annual International Energy Conversion Engineering Conference.
A heat pipe designed for operation as a solar power receiver should be optimized to accept the solar energy flux and transfer this heat into a reactor. Optical properties of the surface, thermal conductance of the receiver wall, contact resistance of
Publikováno v:
7th International Energy Conversion Engineering Conference.
Titanium-water thermosyphons are being considered for use in the heat rejection system for lunar outpost fission surface power. Key to their use is heat transfer between a closed loop heat source and the heat pipe evaporators. This work describes lab
Autor:
James R. Gaier, Edward A. Sechkar
Publikováno v:
45th AIAA Aerospace Sciences Meeting and Exhibit.
The Lunar Dust Adhesion Bell Jar has been assembled at the NASA Glenn Research Center to provide a high fidelity lunar simulation facility to test the interactions of lunar dust and lunar dust simulant with candidate aerospace materials and coatings.
Publikováno v:
2001 Conference and Exhibit on International Space Station Utilization.
Seventy-nine samples of polymer film thermal control (PFTC) materials have been provided by the National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) for exposure to the low Earth orbit environment on the exterior of the In