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  • Ahrens Thomas J.; Schubert Gerald (1975-05)
    The gabbro‐garnet granulite‐eclogite transformation may play a significant role in driving the motions of terrestrial lithospheric plates. Whether or not this transformation is in fact important as a driving mechanism for ...
  • Hirsch Robert M.; Cohon Jared L.; ReVelle Charles S. (1977-04)
    Synergistic gains are defined as the gains in benefits due to joint operation of a system of reservoirs in excess of the benefits from optimal individual operation. These gains are a result of both the deterministic ...
  • Ramaty R.; Lingenfelter R. E. (1966-08-01)
    The production and equilibrium spectra of secondary electrons (negatrons and positrons) resulting from cosmic‐ray interactions in the galaxy are calculated. These electrons arise from the decay of secondary pions and ...
  • Bavassano B.; Iucci N.; Lepping R. P.; Signorini C.; Smith E. J.; Villoresi G. (1994-03-01)
    During October 1989, three very energetic flares were ejected by the same active region at longitudes 9° E, 32° W, and 57° W, respectively. The shape of the galactic cosmic ray variations suggests the presence of large ...
  • Hobbs Peter V. (1983-06-21)
    A cooperative research project to study winter cyclonic development on the east coast of the United States is being planned by an informal consortium of universities and federal research laboratories. Known by the acronym ...
  • Katzoff Judith A. (1986-05-06)
    The scientific community will soon have the opportunity to share data from one of the largest weather experiments ever conducted. The Genesis of Atlantic Lows Experiment (GALE) field program, carried out from January 15 ...
  • Gray William G.; Pinder George F. (1974-08)
    Whereas considerable effort has been expended in generating approximations to the spatial derivatives encountered in porous media flow, the time derivative has received relatively little attention. In spite of the fact ...
  • Frind Emil O.; Pinder George F. (1973-10)
    The inverse problem in aquifer analysis may be solved by a Galerkin finite element approach. The proposed solution is applied to an inhomogeneous isotropic aquifer for which steady state piezometric head is known and ...
  • Grün E.; Baguhl M.; Fechtig H.; Hanner M. S.; Kissel J.; Lindblad B.‐A.; Linkert D.; Linkert G.; Mann I.; McDonnell J. A. M.; Morfill G. E.; Polanskey C.; Riemann R.; Schwehm G.; Siddique N.; Zook H. A. (1992-06-19)
    The Galileo and Ulysses spaceprobes carry two similar dust detectors through interplanetary space from Venus to Jupiter. We report here on impacts which correspond to dust particles above a mass threshold of about 10−13g ...
  • Anonymous (1985-01-15)
    An asteroid flyby option has been added to the Galileo mission to Jupiter, the National Aeronautics and Space Administration (NASA) has announced. The option will permit mission scientists to decide after launch whether ...
  • Carlowicz Michael (1996-01-02)
    As project scientist Torrence Johnson put it, “The status report on Galileo is both happy and simple. Jupiter now has 17 moons. And Jupiter also put on a little weight…about 350 kilograms.”The new satellite of Jupiter is ...
  • Greeley Ronald; Kadel Steven D.; Williams David A.; Gaddis Lisa R.; Head James W.; McEwen Alfred S.; Murchie Scott L.; Nagel Engelbert; Neukum Gerhard; Pieters Carle M.; Sunshine Jessica M.; Wagner Roland; Belton Michael J. S. (1993-09-25)
    The Galileo spacecraft imaged parts of the western limb and far side of the Moon in December 1990. Ratios of 0.41/0.56 μm filter images from the Solid State Imaging (SSI) experiment provided information on the titanium ...
  • McCord Thomas B.; Soderblom Larry A.; Carlson Robert W.; Fanale Fraser P.; Lopes‐Gautier Rosaly; Ocampo Adriana C.; Forsythe Jennifer; Campbell Bruce; Granahan James C.; Smythe W. D.; Weissman P. R.; Becker K. J.; Edwards K.; Kamp Lucas; Lo Juliana; Mehlman R.; Torson J.; Danielson G. E.; Maison D. L.; Kieffer H. H.; Johnson T. V. (1994-03-25)
    Imaging spectrometer observations were made of the surface of the Moon during the December 1990 flyby of the Earth‐Moon system by the Galileo spacecraft. This article documents this data set and presents analyses of some ...
  • Bell Peter M. (1981-10-27)
    Jupiter has been visited four times: by Pioneers 10 and 11 in 1973 and 1974 and Voyagers 1 and 2 in 1979. Data from those missions will be expanded by the Galileo mission in 1985, which will be the first entry probe into ...
  • McEwen Alfred S.; Gaddis Lisa R.; Neukum Gerhard; Hoffman Harald; Pieters Carle M.; Head James W. (1993-09-25)
    Copernican‐age craters are among the most conspicuous features seen on the far side and western limb of the Moon in the Galileo multispectral images acquired in December 1990. Among the new morphologic observations of ...
  • Frank L. A.; Paterson W. R.; Kivelson M. G. (1993-09-03)
    We report the first fully three‐dimensional determinations of the bulk motions of ion and electron plasmas in Earth's magnetotail at geocentric radial distances near the lunar orbit. The two regions that are examined are ...
  • Shore Barbara T. (1980-11-18)
    he Roman Catholic Church appears ready to admit officially that the earth is not the center of the universe. After a 347‐year ‘hiatus,’ the church will reopen the heresy trial of the astronomer Galileo, who was persecuted ...
  • Greenland L. (1965-08-15)
    Gallium has been determined in ten carbonaceous, six enstatite, and six ordinary chondrites by a neutron activation technique. The following averages (ppm Ga) were obtained: enstatite chondrites, 15.6; type I carbonaceous ...
  • Mitchell Thomas M.; Brown Murray (1988-10-04)
    The Minerals Management Service (MMS), Gulf of Mexico Outer Continental Shelf (OCS) Region sponsored a symposium on the Physical Oceanography of the Louisiana/Texas (LA/TX) Shelf in Galveston, Texas, on May 24–26, 1988. ...
  • Davidson J. M.; Biggar J. W.; Nielsen D. R. (1963-08-15)
    A laboratory method, based on γ‐radiation attenuation, is described for studying transient water flow in packed soil columns. The γ rays from a 200‐millicurie source of Cs137 are collimated through a narrow slit, and the ...