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In May 2013, NASA requested a study to develop a discrete event simulation (DES) model that analyzes the launch campaign process of the Space Launch System (SLS) from an integrated commodities perspective. The scope of the study includes launch countdown and scrub turnaround and focuses on four core launch commodities: hydrogen, oxygen, nitrogen, and helium. Previously, the commodities were only analyzed...
A Hydrogen Maser has been developed by GILLAM-FEI and IPNAS University of Liège (Belgium) under Plan Marshall - SKYWIN-TELECOM. The construction of the maser is the first effort in a program of development of atomic clocks based on hydrogen maser technology initiated in Region Wallonne de Belgique. A first evaluation of the Belgium Atomic Hydrogen Maser (Wally One) was performed between October 2011-March...
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