نتایج جستجو برای: fullers earth
تعداد نتایج: 93561 فیلتر نتایج به سال:
This work is a study of the Earths free oscillations considering a merge of solid and liquid model. At the turn of 19th century Geophysicists presented the theory of the free oscillations for a self-gravitating, isotropic and compressible sphere. Assuming a steel structure for an Earth size sphere, they predicted a period of oscillation of about 1 hour. About 50 years later, the free oscillat...
In spite of the fact that the effect of earthquake on earth dams has been widely studied during the past decades, the complicated behavior of such earth structures against different seismological characteristics is still unknown. Such ambiguities necessitate more accurate studies using more comprehensive computation tools to achieve new results describing the behavior of such structures subject...
1 Department of Subsurface Geobiological Analysis and Research (D-SUGAR), Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan, 2 Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan, 3 Project Team for Development of New-generation Research Protocol for Submarine Resources, Japan Agency for Marine-Earth ...
a Bristol Isotope Group, Department of Earth Sciences, University of Bristol, Wills Memorial Building, Bristol BS8 1RJ, United Kingdom b Department of Earth and Environmental Sciences and Lamont–Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States c Institut de Physique du Globe de Paris, Sorbonne Paris Cité Université Paris-Diderot, UMR CNRS 7154, 1...
We studied the electronic structure of rare-earth ditelluride (ReTe2: Re = La, Pr, Sm, and Gd) using photoemission spectroscopy. From the x-ray photoelectron spectroscopy (XPS) study of the 3d core levels of rare-earth elements, we found that all the rare earth elements are trivalent. We have also made theoretical calculations using the Gunnarsson and Schönhammer approximation and multiplet cal...
C. J. Ebinger,1,2 D. Keir,2,3 A. Ayele,4 E. Calais,5 T. J. Wright,3 M. Belachew,1,4 J. O. S. Hammond,6 E. Campbell1 and W. R. Buck7 1Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY 14627, USA. E-mail: [email protected] 2Department of Geology, Royal Holloway University of London, Egham, TW20 0EX, UK 3School of Earth and Environmental Sciences, Uni...
High-quality In0.53Ga0.47As epilayers have been grown on semi-insulating ~100! Fe-doped InP substrates. The growths were performed by liquid phase epitaxy ~LPE! using rare-earth-doped melts in a graphite boat. The rare-earth elements studied were Yb, Gd and Er which act as gettering agents of impurities. Hall measurements show an elevated electron mobility for rare-earth-treated samples over un...
1 School of Ocean and Earth Sciences, University of Hawaii at Manoa, Honolulu, HI, United States, Max Planck Research Group for Marine Isotope Geochemistry, Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany, Department of Earth and Ocean Sciences, University of South Carolina, Columbia, SC, United States, 4 Lamont-Doherty Earth Observator...
a Department of Earth and Environmental Sciences and Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, 10964-8000, USA b Department of Earth and Planetary Science, University of California at Santa Cruz, Santa Cruz, CA, 95064, USA c Department of Geosciences, State University of New York at Stony Brook, Stony Brook, NY, 11794, USA d School of Earth and Environmental Scienc...
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