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  • Data  (93)
  • Other Sources  (8,136)
  • 1985-1989  (8,028)
  • 1950-1954  (201)
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  • 1
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    Stratospheric ozone measurements from the 1985 MAP/GLOBUS NO(x) campaign (1989)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Nine experiments obtained stratospheric ozone measurements during the fall 1985 Middle Atmosphere Program (MAP) Global Budget of Stratospheric Trace Constituents (GLOBUS) NO(x) campaign. Measurements are grouped into four sets from four air masses and compared. Agreement between individual experiments and weighted mean profiles is generally within 10 percent and within absolute accuracies. Dobson Umkehr values in layer 5 differ by more than absolute accuracies from weighted mean profiles. Brewer sonde values for one data set are outside absolute accuracies near the ozone peak. Solar UV occultation measurements are 30-35 percent less than the weighted mean profile and outside absolute accuracies. Measurements from the Exospheric Satellite backscattered ultraviolet experiment, not previously compared with other techniques, agree within 10-15 percent of weighted mean profiles. Results of the campaign are generally consistent with those of four previous intercomparison campaigns.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 94; 11074-11
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Pollen profile AMTKEL, Amtkel, Georgia (1987)
    PANGAEA
    In:  European Pollen Database (EPD) | Supplement to: Kvavadze, Eliso V; Rukhadze, L P; Tretyak, P R; Petrenko, L V (1987): On the migration on high-mountain vegetation belts in the late Holocene in the valley of the Amtqel River (Abkhazia). Bulletin of the Academy of Sciences of the Georgian SSR, 125(2), 421-424, hdl:10013/epic.37431.d001
    Details
    Publication Date: 2023-11-01
    Description: The rock mass of fluvial and fluvioglacial deposits of the Late Holocene has been studied at the altitude of 1830 m a.s.l. using the palynologic, carpologic, geomorphologic, and geochronologic methods. It was ascertained that in the mid-Subatlantic period the area of the present-day beech elfin woodland was occupied by a belt of alpine meadows. Thus, the lower border of alpine meadows ran 370-400 m lower than the recent level, pointing to a rather significant cooling of the climate that occurred from ca 2nd cent. A.D.
    Keywords: Abies nordmanniana; Acer; Alismataceae; Alnus; AMTKEL; Amtkel, Georgia; Artemisia; Betula; Blechnum spicant; Botrychium lunaria; Campanula; Carpinus betulus; Carpinus orientalis; Caryophyllaceae; Castanea sativa; Cerealia-type; Chenopodiaceae; Compositae; Corylus; Cyperaceae; DEPTH, sediment/rock; Diphasium alpinum; Dipsacaceae; Equisetum; Fagus orientalis; Fraxinus; Geraniaceae; Gramineae; Hippophae; Huperzia selago; Ilex; Indeterminable: unknown; Juglans regia; Labiatae; Laurocerasus; Leguminosae; Ligustrum; Liliaceae; Lonicera; Lycopodium clavatum; Lycopodium undifferentiated; Onagraceae; Osmunda regalis; Picea orientalis; Pinus; Plantaginaceae; Plumbaginaceae; Polygonaceae; Polypodiaceae undifferentiated; Polypodium vulgare; Pteridium undifferentiated; Pterocarya pterocarpa; Quercus; Ranunculaceae; Rhododendron; Salix; Selaginella helvetica; Selaginella selaginoides; Spade; SPADE; Tilia; Ulmus; Umbelliferae; Urtica; Valeriana; Viburnum
    Type: Dataset
    Format: text/tab-separated-values, 854 data points
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    DATA PANGAEA
  • 3
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    Proton-proton correlations at small relative momentum in neon-nucleus collisions at E/A=400 and 800 MeV (1988)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Proton-proton small angle correlations have been measured in neon-nucleus collisions, using the 4 pi detector Diogene, at 400 and 800 MeV per nucleon incident energies. Values of the size of the emitting region are obtained by comparison with the Koonin formula, taking into account the biases of the apparatus. The dependence of the density on target mass and incident energy is also analysed.
    Keywords: Nuclear Physics
    Type: Physics letters. [Part B] (ISSN 0370-2693); Volume 200; 1-2; 17-21
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Spatial and temporal characteristics of global cloud cover as observed from the Nimbus-7 satellite (1986)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: The spatial and temporal characteristics of the total cloud amount (TCA) were determined on the bases of 2 yr of data collected by Nimbus-7. The instruments used were the 11.5 microns channel of the Temperature Humidity IR radiometer and the 0.38 micron channel of the Total Ozone Mapping Spectrometer. Comparisons were made between long-term averages and large variations during the El Nino/Southern Oscillation event of 1982/83. Separate attention was also given to the TCA for the Northern and Southern Hemispheres, and to TCA averages over specific large-scale global features such as deserts.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Format: text
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  • 5
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    Role of solar flare index in long term modulation of cosmic ray intensity (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Recently, the importance of the occurrence of solar flares in the long-term modulation of cosmic ray intensity has been re-emphasized. For this purpose, the data of solar flares have been used from various publications, such as Solar Geophysical Data books, U.A.G. reports and Quarterly Bulletin Of Solar Activity. Research very clearly reveals that even the periodic changes in the solar flare observations, obtained from the four different data sources, for the same interval, differ significantly from one another; this is evidenced even on an average basis. Hence, in any study using solar flares, the importance of selecting a single compilation of the solar-flare data for the entire period of investigation is stressed.
    Keywords: SPACE RADIATION
    Type: SH-4.4-12 , 19th Intern. Cosmic Ray Conf - Vol. 5; p 63-66; NASA-CP-2376-VOL-5
    Format: application/pdf
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  • 6
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    UHB demonstrator interior noise control flight tests and analysis (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The measurement and analysis of MD-UHB (McDonnell Douglas Ultra High Bypass) Demonstrator noise and vibration flight test data are described as they relate to passenger cabin noise. The analyses were done to investigate the interior noise characteristics of advanced turboprop aircraft with aft-mounted engines, and to study the effectiveness of selected noise control treatments in reducing passenger cabin noise. The UHB Demonstrator is an MD-80 test aircraft with the left JT8D engine replaced with a prototype UHB engine. For these tests, the UHB engine was a General Electric Unducted Fan, with either 8x8 or 10x8 counter-rotating propeller configurations. Interior noise level characteristics were studied for several altitudes and speeds, with emphasis on high altitude (35,000 ft), high speed (0.75 Mach) cruise conditions. The effectiveness of several noise control treatments was evaluated based on cabin noise measurements. The important airborne and structureborne transmission paths were identified for both tonal and broadband sources using the results of a sound intensity survey, exterior and interior noise and vibration data, and partial coherence analysis techniques. Estimates of the turbulent boundary layer pressure wavenumber-frequency spectrum were made, based on measured fuselage noise levels.
    Keywords: ACOUSTICS
    Type: NASA-CR-181897 , NAS 1.26:181897
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    The Diogene 4 pi detector at Saturne (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Diogene, an electronic 4 pi detector, has been built and installed at the Saturne synchrotron in Saclay. The forward angular range (0 degree-6 degrees) is covered by 48 time-of-flight scintillator telescopes that provide charge identification. The trajectories of fragments emitted at larger angles are recorded in a cylindrical 0.4-m3 Pictorial Drift Chamber (PDC) surrounding the target. The PDC is inside a 1-T magnetic field; the axis of the PDC cylinder and the magnetic field are parallel to the beam. Good identification has been obtained for both positive and negative pi mesons and for hydrogen and helium isotopes. Multiplicities in relativistic nucleus-nucleus reactions up to 40 have been detected, limited mainly by the present electronics.
    Keywords: Nuclear Physics
    Type: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (ISSN 0168-9002); A261; 379-98
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    NASA TECHNICAL REPORTS
  • 8
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    Structures and crustal development of the Central Andes between 21° and 25° S (1988)
    Springer-Verlag
    In:  Bull., Open-File Rept., The Southern Central Andes, Berlin Heidelberg, Springer-Verlag, vol. 17, no. 1, pp. 231-261, (ISBN 0080419208)
    Details
    Publication Date: 1988
    Keywords: Subduction zone ; South ; Maerica ; Velocity depth profile ; Geol. aspects ; Structural geology ; Goetze ; Gotze
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    BIBLIOGRAPHY SEISMOLOGY
  • 9
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    Proton production in relativistic heavy ion collisions; comparison with a thermodynamical model (1989)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Experimental results concerning proton production in nuclear collisions, obtained at Saturne with the Diogene 4 pi facility, are compared with the predictions of a thermodynamical model, using collective velocity distributions combined with a statistical thermodynamics in local rest frames. Experimental differential cross sections for alpha + nucleus and Neon + nucleus central collisions at incident energies between 200 and 800 MeV per nucleon are well reproduced by the model, for an angular range 30-110 degrees in the laboratory system. Extracted values of the temperatures are compared with those given by other authors.
    Keywords: Nuclear Physics
    Type: International journal of modern physics. A, Particles and fields, gravitation, cosmology (ISSN 0217-751X); Volume 4; 14; 3689-703
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    First results from the Giotto radio-science experiment (1986)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: A definite deceleration of the comet probe Giotto due to drag in the comet Halley atmosphere has been noted by means of Doppler and ranging measurements based on the radio signals of the Giotto spacecraft. The total radial velocity change is 16.7 cm/s over a 100-s interval; this corresponds to a Doppler frequency of 4.7 Hz. This velocity change is used to estimate a total cometary mass striking the spacecraft of between 0.1 and 1.0 g.
    Keywords: SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
    Type: Nature (ISSN 0028-0836); 321; 355-357
    Format: text
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