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  • Chemistry  (52)
  • Lunar and Planetary Science and Exploration  (6)
  • 36.10.Gv  (3)
  • 1
    Publication Date: 2019-07-13
    Description: NASA's Lunar Mapping and Modeling Portal (LMMP) provides a web-based Portal and a suite of interactive visualization and analysis tools to enable mission planners, lunar scientists, and engineers to access mapped lunar data products from past and current lunar missions (http://lmmp.nasa.gov). During the past year, the capabilities and data served by LMMP have been significantly expanded. New interfaces are providing improved ways to access and visualize data. At the request of NASA's Science Mission Directorate, LMMP's technology and capabilities are now being extended to additional planetary bodies. New portals for Vesta and Mars are the first of these new products to be released. This presentation will provide an overview of LMMP, Vesta Trek, and Mars Trek, demonstrate their uses and capabilities, highlight new features, and preview coming enhancements.
    Keywords: Lunar and Planetary Science and Exploration
    Type: ARC-E-DAA-TN26637 , European Planetary Science Congress 2015; Sep 27, 2015 - Oct 02, 2015; Nantes; France
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  • 2
    Publication Date: 2019-07-19
    Description: On the six Apollo lunar landed missions, the Astronauts deployed the Apollo Lunar Surface Experiments Package (ALSEP) science stations which measured active and passive seismic events, magnetic fields, charged particles, solar wind, heat flow, the diffuse atmosphere, meteorites and their ejecta, lunar dust, etc. Today s investigators are able to extract new information and make new discoveries from the old ALSEP data utilizing recent advances in computer capabilities and new analysis techniques. However, current-day investigators are encountering problems in trying to use the ALSEP data. The data were in formats often not well described in the published reports and contained rerecording anomalies which required tape experts to resolve. To solve these problems the DPS Lunar Data Node was established at NASA Goddard Space Flight Center (GSFC) NASA Space Science Data Center (NSSDC) in 2008 and is currently in the process of making the existing archived ALSEP data available to current-day investigators in easily useable forms. However, current estimates by NSSDC archivists are that only about 60 percent of the PI processed ALSEP data and less than 30 percent of the raw experiment ALSEP data-of-interest to current lunar science investigators are currently in the NSSDC archives.
    Keywords: Lunar and Planetary Science and Exploration
    Type: GSFC.ABS.6670.2012 , NASA Science Lunar Institute (NLSI) Forum Meeting; Jul 17, 2012 - Jul 19, 2012; Moffett Field, CA; United States
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  • 3
    Publication Date: 2019-07-19
    Description: The NASA Solar System Exploration Research Virtual Institute (SSERVI) has been pursuing international partnerships since its inception as the NASA Lunar Science Institute (NLSI), in order to both leverage the science being done by its domestic member institutions as well as to help lunar science and exploration become a greater global endeavor. The international partners of the Institute have pursued a broad program of lunar science stimulated by scientific partnerships enabled by the SSERVI community. Furthermore, regional partnerships have been formed such as the new pan-European lunar science consortium, which promises both new scientific approaches and mission concepts. International partner membership requires long-term commitment from both the partner and SSERVI, together with tangible and specific plans for scientific interaction that will produce results of mutual benefit to both the institute's U.S. Teams and the international partner. International partners are invited to participate in all aspects of the Institute's activities and programs, on a basis of no exchange of funds. Through these activities, SSERVI researchers and international partners participate in sharing ideas, information, and data arising from their respective research efforts, and contribute to the training of young scientists. This talk will present an overview of the Institute and the international nodes. We will also discuss the various processes to become a SSERVI partner as well as the opportunities available for collaborations with the SSERVI national teams.
    Keywords: Lunar and Planetary Science and Exploration
    Type: ARC-E-DAA-TN26594 , European Planetary Science Congress 2015; Sep 27, 2015 - Oct 02, 2015; Nantes; France
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  • 4
    Publication Date: 2019-08-13
    Description: NASA's Solar System Exploration Research Virtual Institute (SSERVI) represents a close collaboration between science, technology and exploration, and was created to enable a deeper understanding of the Moon and other airless bodies. SSERVI is supported jointly by NASA's Science Mission Directorate and Human Exploration and Operations Mission Directorate. The institute currently focuses on the scientific aspects of exploration as they pertain to the Moon, Near Earth Asteroids (NEAs) and the moons of Mars, but the institute goals may expand, depending on NASA's needs, in the future. The 9 initial teams, selected in late 2013 and funded from 2014-2019, have expertise across the broad spectrum of lunar, NEA, and Martian moon sciences. Their research includes various aspects of the surface, interior, exosphere, near-space environments, and dynamics of these bodies. NASA anticipates a small number of additional teams to be selected within the next two years, with a Cooperative Agreement Notice (CAN) likely to be released in 2016. Calls for proposals are issued every 2-3 years to allow overlap between generations of institute teams, but the intent for each team is to provide a stable base of funding for a five year period. SSERVI's mission includes acting as a bridge between several groups, joining together researchers from: 1) scientific and exploration communities, 2) multiple disciplines across a wide range of planetary sciences, and 3) domestic and international communities and partnerships. The SSERVI central office is located at NASA Ames Research Center in Mountain View, CA. The administrative staff at the central office forms the organizational hub for the domestic and international teams and enables the virtual collaborative environment. Interactions with geographically dispersed teams across the U.S., and global partners, occur easily and frequently in a collaborative virtual environment. This poster will provide an overview of the 9 current US teams and international partners, as well as information about outreach efforts and future opportunities to participate in SSERVI.
    Keywords: Lunar and Planetary Science and Exploration
    Type: ARC-E-DAA-TN29354 , Lunar and Planetary Science Conference; 21ý25 Mar. 2016; Woodlands, TX; United States
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  • 5
    Publication Date: 2019-07-13
    Description: Modeling of planetary climate and weather has followed the development of tools for studying Earth, with lags of a few years. Early Earth climate studies were performed with 1-dimensionalradiative-convective models, which were soon fol-lowed by similar models for the climates of Mars and Venus and eventually by similar models for exoplan-ets. 3-dimensional general circulation models (GCMs) became common in Earth science soon after and within several years were applied to the meteorology of Mars, but it was several decades before a GCM was used to simulate extrasolar planets. Recent trends in Earth weather and and climate modeling serve as a useful guide to how modeling of Solar System and exoplanet weather and climate will evolve in the coming decade.
    Keywords: Lunar and Planetary Science and Exploration
    Type: GSFC-E-DAA-TN42223 , Planetary Science Vision 2050 Workshop; Feb 27, 2017 - Mar 01, 2017; Washington, DC; United States
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  • 6
    Publication Date: 2019-10-01
    Description: The Global Exploration Roadmap (GER) has been developed by the International Space Exploration Coordination Group (ISECG comprised of 14 space agencies) to define various pathways to getting humans beyond low Earth orbit and eventually to Mars. Such pathways include visiting asteroids or the Moon before going on to Mars. This document has been written at a very high level and many details are still to be determined. However, a number of important papers regarding international space exploration can form a basis for this document.
    Keywords: Lunar and Planetary Science and Exploration
    Type: ARC-E-DAA-TN16589 , European Planetary Science Congress 2014; Sep 07, 2014 - Sep 12, 2014; Cascais; Portugal
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  • 7
    ISSN: 1434-601X
    Keywords: 36.10.Gv ; 13.75.Cs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The strong ¯p-nucleus spin-orbit interaction was investigated in a measurement of the strong-interaction effects of the 9→8 transition in ¯p 174Yb at the Low-Energy Antiproton Ring (LEAR) at CERN. This measurement was part of an experimental programme where, for the first time, the fine-structure components of the last observable X-ray transition in a ¯p atom, which carries information on the strong ¯p-nucleus interaction, were resolved and studied individually. The observed splitting ΔE exp=2408±26 eV consists of the electromagnetic fine-structure splitting ΔE FS=2350 eV and an additional splitting Δɛ=58±26 eV. In addition, one finds a significant difference in the level widths of Δ=195±59 eV with the larger value⇊=1216±41 eV for the lower fine-structure level. This experiment follows an earlier measurement on ¯p 138Ba, where the transition 8→7 is influenced by the strong interaction. In this case, however, the fine-structure components could not be resolved. The results for174Yb may be attributed to a spin-orbit (LS) term in the complex strong-interaction potential.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 341 (1991), S. 101-105 
    ISSN: 1434-601X
    Keywords: 36.10.Gv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Absolute pionic x-ray intensities have been measured for Mg and Fe. The accuracy achieved was 2% of the line intensity for the most prominent transitions. In the Balmer series of Mg and the Paschen series of Fe the crossover transitions were found to be even more attenuated than the transitions between circular states, as deduced, for example, by comparison with muonic atoms; no crossover transitions were observed in the Fe Balmer series. According to cascade calculations based on the experimental intensities more than half of the pions are absorbed in Fe already from levels with principal quantum numbern〉17 by strong interaction.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 27 (1996), S. 287-296 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The mechanical properties of polycristalline materials are depent on the type, the combination and the orientation of the elements in the micro structure. By means of the method of Visioplasticity assumptions are currently realized to analyse kinematic parameters inside of single grains and grain groups. Strength of the free surface of the specimen will be rough by its plastical deformation, it was difficult to register the increments of deformation of the grid. By further development of a method of picture analysis it is also possible to reproduce a 3d-surface by utilization of single light microscopical pictures.
    Notes: Die mechanischen Eigenschaften polykristalliner Werkstoffe sind von der Art der Mikrostrukturelemente, deren Zusammenwirken und Orientierung hauptsächlich abhängig. Mittels der Methode der Visioplastizität werden gegenwärtig Voraussetzungen geschaffen, die die Analyse kinematischer Feldkenngrößen innerhalb einzelner Strukturelemente (Kristallite) und Strukturverbände gestattet. Aufgrund der verformungsbedingten Aufrauhung der freien Probenoberfläche traten Probleme bei der Aufnahme der Rasterverformungen auf. Über die Weiterentwicklung eines Verfahrens der Bildverarbeitung wurde es möglich, 3D-Oberflächenstrukturen anhand der Auswertung lichtmikroskopischer Einzelbildaufnahmen abzubilden.
    Additional Material: 25 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 25 (1994), S. 183-190 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The metal forming process is one of the complicates mechanical deformation process. Up to this time, the investigations are mainly directed to the macroscopically point of view. Metal forming models are based on continuum mechanical methods.In opposite to the continuum mechanical deformation theory is the physics of metals.It is the aim of the paper, to discuss the developed technical supposition for using the micro-visioplasticity, an new method of micro-grid application and results of micro-grid deformation using an upsetting press.
    Notes: Der Umformprozeß gehört zu den kompliziertesten Verformungsvorgängen. Bis heute wurden die meisten Untersuchungen mit makroskopischen Theorien durchgeführt. Viele der Umformtheorien basieren auf der Kontinuumsmechanik. Demgegenüber sind mikroskopisch betrachtet jedoch auch metallphysikalische Prozesse interessant.In der Arbeit werden deshalb eine Einrichtung zur Durchführung von Versuchen - die Mikrovisioplastizität nutzend - die Grundlagen und Methoden zur Herstellung von Mikrorastern sowie erste Versuchsergebnisse vorgestellt.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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