The international Low Impact Docking System (iLIDS) provides a structural arrangement that allows for visiting vehicles to dock with the International Space Station (ISS) (Fig 1). The iLIDS docking units are mechanically joined together by a series of active and passive latch hooks. In order to preserve docking capability at the existing Russian docking interfaces, the iLIDS latch hooks are required to conform to the existing Russian design. The latch hooks are classified as being fail-safe....
Topics: NASA Technical Reports Server (NTRS), METAL SURFACES, SPACECRAFT DOCKING, LATCHES, STRUCTURAL...
The criteria for which data acquiring software and its supporting infrastructure should be designed should take the following two points into account: the reusability and organization of stored online and remote data and content, and an assessment on whether abandoning a platform optimized design in favor for a multi-platform solution significantly reduces the performance of an end-user application. Furthermore, in-house applications that control or process instrument acquired data for...
Topics: NASA Technical Reports Server (NTRS), SOFTWARE ENGINEERING, DATA PROCESSING EQUIPMENT, DATA...
One of the many benefits of citizen science projects is the capacity they hold for facilitating data collection on a grand scale and thereby enabling scientists to answer questions they would otherwise not been able to address. Nature's Notebook, the plant and animal phenology observing program of the USA National Phenology Network (USA-NPN) suitable for scientists and non-scientists alike, offers scientifically-vetted data collection protocols and infrastructure and mechanisms to quickly reach...
Topics: NASA Technical Reports Server (NTRS), DATA ACQUISITION, SATELLITE IMAGERY, PHENOLOGY, CLIMATE...
DuPont (TM) Vespel (R) SP-211 polyimide was selected as the top candidate seal material for use in the Oxidizer Turbine Bypass Valve (OTBV) on NASA's Ares I Upper Stage J-2X engine. In the OTBV, the seal material would get exposed to temperatures up to 750degF for approx 10 minutes at a time. Although the J-2X engine is not reusable, the valve material could be exposed to multiple temperature cycles up to 750 F during engine operation. The Constellation Program that included the Ares I rocket...
Topics: NASA Technical Reports Server (NTRS), POLYIMIDES, CONTROL VALVES, SEALS (STOPPERS), SEALERS, J-2...
Liquid water is a key requirement for life on Earth, and serves as an important constraint on present day habitability on Mars. Recurring Slope Lineae (RSL) are a unique phenomenon on Mars that may be formed by brine seeps. Their morphological, seasonal and temporal characteristics support this hypothesis; however, spectral evidence has been lacking. Ojha et al., 2013 recently analyzed CRISM images from all confirmed RSL in the southern mid-latitudes and equatorial regions and found no...
Topics: NASA Technical Reports Server (NTRS), ANTARCTIC REGIONS, EARTH ANALOGS, SPECTRA, EXTRATERRESTRIAL...
This presentation captures the essence of electromagnetic compatibility (EMC) engineering from a project manager's perspective. It explains the basics of EMC and the benefits to the project of early incorporation of EMC best practices. The EMC requirement products during a project life cycle are identified, along with the requirement verification methods that should be utilized. The goal of the presentation is to raise awareness and simplify the mystique surrounding electromagnetic...
Topics: NASA Technical Reports Server (NTRS), ELECTROMAGNETIC INTERFERENCE, PROJECT MANAGEMENT,...
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Unofficial mirror of http://www.documentcloud.org/documents/747469-naftaquebeclonepine-01.html
Topics: documentcloud, researchmethods, 7373-karla-mendesdesouza
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Oct 24, 2014
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Vawer, May; Kaina, Patsy; Leonard, Ann; Ogata, Michael; Blackburn, Beth; Young, Malia; Seto, Todd B.
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This article is from International Journal of Circumpolar Health , volume 72 . Abstract Background: Little is known about the burden of heart failure among indigenous populations, including Native Hawaiians (NH). Recent concerns about genetic research in the NH community resonate with similar concerns raised by American Indian, Alaskan Native and Canadian First Nations communities and have raised questions about the best way to proceed with studies involving biological specimens. Objective: To...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3748460
By Vice Adm. Matthew Nathan, U.S. Navy surgeon general and chief, U.S. Navy Bureau of Medicine and Surgery.
Topics: Navy Medicine Live Blog, Medical Service Corps
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Oct 27, 2014
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Boyd, Eric S.; Peters, John W.
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This article is from Frontiers in Microbiology , volume 4 . Abstract Nitrogenase, which catalyzes the ATP-dependent reduction of dinitrogen (N2) to ammonia (NH3), accounts for roughly half of the bioavailable nitrogen supporting extant life. The fundamental requirement for fixed forms of nitrogen for life on Earth, both at present and in the past, has led to broad and significant interest in the origin and evolution of biological N2 fixation. One key question is whether the limited availability...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3733012
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Oct 8, 2013
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Department of Education
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Unofficial mirror of http://www.documentcloud.org/documents/748151-no-responsive-documents.html
Topics: documentcloud, muckrock, 659-mitchell-kotler
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Oct 8, 2013
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SOUTHCOM
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Oct 8, 2013
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Lowell Police Department
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Topics: documentcloud, muckrock, 659-mitchell-kotler
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Oct 25, 2014
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Menzies, Robert I.; Markey, Peter; Boyd, Rowena; Koehler, Ann P.; McIntyre, Peter B.
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This article is from International Journal of Circumpolar Health , volume 72 . Abstract Background: High, or increasing, rates of invasive Haemophilus influenzae (Hi) type a disease have been reported from North American native children from circumpolar regions, raising the question of serotype replacement being driven by vaccination against Hi type b (Hib). Indigenous Australians from remote areas had high rates of invasive Hib disease in the past, comparable to those in North American...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3753125
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Sep 23, 2013
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Daniel Maldonado-Mundo; Lianyi He; Patrik Ohberg; Manuel Valiente
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We consider the effect of a momentum kick on the ground state of a non-interacting two-dimensional Fermi gas subject to Rashba spin-orbit coupling. Although the total momentum is a constant of motion, the gas does not obey the rules of Galilean relativity. Upon imprinting a small overall velocity to the non-interacting gas, we find that the Fermi sea is deformed in a non-trivial way. We also consider a weakly repulsive Fermi gas, and find, from its Hartree shift, that the total ground state of...
Source: http://arxiv.org/abs/1303.2628v2
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Oct 28, 2014
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Brambila, D. S.; Fratalocchi, A.
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This article is from Scientific Reports , volume 3 . Abstract By employing a nonlinear quantum kicked rotor model, we investigate the transport of energy in multidimensional quantum chaos. This problem has profound implications in many fields of science ranging from Anderson localization to time reversal of classical and quantum waves. We begin our analysis with a series of parallel numerical simulations, whose results show an unexpected and anomalous behavior. We tackle the problem by a fully...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3733059
