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  • Energy Production and Conversion
  • Key words. History of science; Ireland; Rosse Telescope; St. Patrick's College; Birr Demense; Irish National Museum (Galway); Giant's Causeway.
  • MBC, microbial biomass carbon MEP, Mehlich extractable phosphorus MLRA, Major Land Resource Areas MWD, mean-weight diameter NRCS, Natural Resources Conservation Service NRI, National Resource Inventory PMN, potentially mineralizable nitrogen PSU, primary sampling units TOC, total organic carbon WSA, water stable aggregates
  • Solar Physics
Collection
Keywords
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    The Physical Tourist¶Scientific Travels in the Irish Countryside (2000)
    Springer
    Physics in perspective 2 (2000), S. 313-326 
    Details
    ISSN: 1422-6960
    Keywords: Key words. History of science; Ireland; Rosse Telescope; St. Patrick's College; Birr Demense; Irish National Museum (Galway); Giant's Causeway.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Newly-prosperous Ireland has a number of sites which the scientific traveller can visit. There are apparatus museums at Birr and Maynooth, and a collection of early apparatus at the physics department of the Irish National University in Galway. The main attraction at Birr is the Rosse Telescope, with its 6-ft diameter speculum, built in the 1840s, and recently refurbished. Travellers to Northern Ireland can see applied geology at the Giant's Causeway.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000160050048
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Distribution and Variability of Surface Soil Properties at a Regional Scale (2000)
    Springer
    Soil Science Society of America journal 64 (2000), S. 974-982 
    Details
    ISSN: 1435-0661
    Keywords: MBC, microbial biomass carbon MEP, Mehlich extractable phosphorus MLRA, Major Land Resource Areas MWD, mean-weight diameter NRCS, Natural Resources Conservation Service NRI, National Resource Inventory PMN, potentially mineralizable nitrogen PSU, primary sampling units TOC, total organic carbon WSA, water stable aggregates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: e transformation resulted in normal distributions for most soil properties and reduced variability two- to threefold. However, a few soil properties remained non-normally distributed. Soil pH may be monitored at the regional scale with a high degree of precision. Small changes in soil C content (3–8% of the regional mean) may be detected using loge transformed total organic C as the indicator. Sampling soil properties as part of the NRI should improve NRCS' ability to monitor soil condition on a regional scale.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Nickel-Hydrogen Battery Cell Life Test Program Update for the International Space Station (2000)
    In:  CASI
    Details
    Publication Date: 2018-06-02
    Description: NASA and Boeing North America are responsible for constructing the electrical power system for the International Space Station (ISS), which circles the Earth every 90 minutes in a low Earth orbit (LEO). For approximately 55 minutes of this orbit, the ISS is in sunlight, and for the remaining 35 minutes, the ISS is in the Earth s shadow (eclipse). The electrical power system must not only provide power during the sunlight portion by means of the solar arrays, but also store energy for use during the eclipse. Nickel-hydrogen (Ni/H2) battery cells were selected as the energy storage systems for ISS. Each battery Orbital Replacement Unit (ORU) comprises 38 individual series-connected Ni/H2 battery cells, and there are 48 battery ORU s on the ISS. On the basis of a limited Ni/H2 LEO data base on life and performance characteristics, the NASA Glenn Research Center at Lewis Field commenced testing through two test programs: one in-house and one at the Naval Surface Warfare Center in Crane, Indiana.
    Keywords: Energy Production and Conversion
    Type: Research and Technology 1999; NASA/TM-2000-209639
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Recent Turbulence Model Advances Applied to Multielement Airfoil Computations (2000)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A one-equation linear turbulence model and a two-equation nonlinear explicit algebraic stress model (EASM) are applied to the flow over a multielement airfoil. The effect of the K-epsilon and K-omega forms of the two-equation model are explored, and the K-epsilon form is shown to be deficient in the wall-bounded regions of adverse pressure gradient flows. A new K-omega form of EASM is introduced. Nonlinear terms present in EASM are shown to improve predictions of turbulent shear stress behind the trailing edge of the main element and near midflap. Curvature corrections are applied to both the one- and two-equation turbulence models and yield only relatively small local differences in the flap region, where the flow field undergoes the greatest curvature. Predictions of maximum lift are essentially unaffected by the turbulence model variations studied.
    Keywords: Solar Physics
    Type: AIAA Paper 2000-4323 , Applied Aerodynamics; Aug 14, 2000 - Aug 17, 2000; Denver, CO; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Performance and Comparison of Lithium-Ion Batteries Under Low-Earth-Orbit Mission Profiles (2007)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The performance of two 28 V, 25 Ah lithium-ion batteries is being evaluated under low-Earth-orbit mission profiles for satellite and orbiter applications. The batteries are undergoing life testing and have achieved over 12,000 cycles to 40 percent depth-of-discharge.
    Keywords: Energy Production and Conversion
    Type: NASA/TM-2007-214826 , AIAA Paper-2006-4042 , E-16018 , 4th International Energy Conversion Engineering Conference and Exhibit (IECEC); Jun 26, 2006 - Jun 29, 2006; San Diego, CA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Energy Storage Project (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: NASA's Exploration Technology Development Program funded the Energy Storage Project to develop battery and fuel cell technology to meet the expected energy storage needs of the Constellation Program for human exploration. Technology needs were determined by architecture studies and risk assessments conducted by the Constellation Program, focused on a mission for a long-duration lunar outpost. Critical energy storage needs were identified as batteries for EVA suits, surface mobility systems, and a lander ascent stage; fuel cells for the lander and mobility systems; and a regenerative fuel cell for surface power. To address these needs, the Energy Storage Project developed advanced lithium-ion battery technology, targeting cell-level safety and very high specific energy and energy density. Key accomplishments include the development of silicon composite anodes, lithiated-mixed-metal-oxide cathodes, low-flammability electrolytes, and cell-incorporated safety devices that promise to substantially improve battery performance while providing a high level of safety. The project also developed "non-flow-through" proton-exchange-membrane fuel cell stacks. The primary advantage of this technology set is the reduction of ancillary parts in the balance-of-plant--fewer pumps, separators and related components should result in fewer failure modes and hence a higher probability of achieving very reliable operation, and reduced parasitic power losses enable smaller reactant tanks and therefore systems with lower mass and volume. Key accomplishments include the fabrication and testing of several robust, small-scale nonflow-through fuel cell stacks that have demonstrated proof-of-concept. This report summarizes the project s goals, objectives, technical accomplishments, and risk assessments. A bibliography spanning the life of the project is also included.
    Keywords: Energy Production and Conversion
    Type: NASA/TM-2011-216963 , E-17568
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Preliminary Performance of Lithium-ion Cell Designs for Ares I Upper Stage Applications (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: NASA's Ares I Crew Launch Vehicle (CLV) baselined lithium-ion technology for the Upper Stage (US). Under this effort, the NASA Glenn Research Center investigated three different aerospace lithium-ion cell suppliers to assess the performance of the various lithium-ion cell designs under acceptance and characterization testing. This paper describes the overall testing approaches associated with lithium-ion cells, their ampere-hour capacity as a function of temperature and discharge rates, as well as their performance limitations for use on the Ares I US vehicle.
    Keywords: Energy Production and Conversion
    Type: NASA/TM-2011-216900 , E-17479
    Format: application/pdf
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