منابع مشابه
Playa: High-performance programmable linear algebra
This paper introduces Playa, a high-level user interface layer for composing algorithms for complex multiphysics problems out of objects from other Trilinos packages. Among other features, Playa provides very high-performance overloaded operators implemented through an expression template mechanism. In this paper, we give an overview of the central Playa objects from a user’s perspective, show ...
متن کاملAvian response to vegetative pattern in playa wetlands during winter
Breeding-bird communities inhabiting northern prairie wetlands have been shown to have higher densities and diversities in wetlands with a well-interspersed 50:50 vegetative cover:water ratio than in those wetlands with a higher or lower proportion of cover. Potential reasons for such a response include increased food or visual isolation and spacing of breeding birds. We manipulated cover:water...
متن کاملMERIS / ENVISAT Vicarious Calibration Results at Railroad Valley Playa (NV)*
On August 22, 2002, a vicarious calibration (VC) experiment of MERIS, a pushbroom imaging spectrometer on ESA’s ENVISAT, was performed. The purpose of this experiment was the acquisition of in-situ measurements of surface and atmospheric conditions over a bright, uniform target. These data were then used to compute top-ofatmosphere (TOA) radiances, which were correlated with the MERIS TOA radia...
متن کاملObservation of Playa Salts as Nuclei in Orographic Wave Clouds
[1] During the Ice in Clouds Experiment‐Layer Clouds (ICE‐L), dry lakebed, or playa, salts from the Great Basin region of the United States were observed as cloud nuclei in orographic wave clouds over Wyoming. Using a counterflow virtual impactor in series with a single‐particle mass spectrometer, sodium‐potassium‐magnesium‐calcium‐chloride salts were identified as residues of cloud droplets. I...
متن کاملAeolian dust in a saline playa environment, Nevada, U.S.A
Saline playas in north-western Nevada, U.S.A., remnants of pluvial periods of the Pleistocene, represent a tremendous source of unconsolidated sediments available for aeolian transport. This study investigated the transport of aqueous-soluble solutes in dust from July 1994 through June 1996 along a transect from a barren salt-encrusted playa surface (elevation"1224 m), to a former pluvial lake ...
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ژورنال
عنوان ژورنال: Revista de Filología Española
سال: 1959
ISSN: 1988-8538,0210-9174
DOI: 10.3989/rfe.1959.v42.i1/4.1040