The diatoms: applications for the environmental and earth sciences E. F. Stoermer and J. P. Smol Cambridge University Press,Cambridge 1999 (469 pp) £70/US$115 ISBN 0 521 58281 4     

Reed Scherer 《第四纪科学杂志》2002,17(3):283-284

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Resolving the pulsations of subdwarf B stars: HS 0039+4302, HS 0444+0458 and an examination of the group properties of resolved pulsators     

M. D. Reed  D. M. Terndrup  A.-Y. Zhou  C. T. Unterborn  D. An  J. R. Eggen 《Monthly notices of the Royal Astronomical Society》2007,378(3):1049-1063

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The age dependence of galaxy clustering     

Darren S. Reed  Fabio Governato  Thomas Quinn  Joachim Stadel  George Lake 《Monthly notices of the Royal Astronomical Society》2007,378(2):777-784

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Book reviews     

Richard J. Reed  Hanna J. Cortner  Peter M. Morrisette  A. J. Pitman 《Climatic change》1990,16(3):357-366

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Using 2MASS to detect main sequence companions to subdwarf B stars     

M.D. Reed  Rae Stiening 《Astrophysics and Space Science》2004,291(3-4):329-332

We explore the binary fraction of subdwarf B (sdB) stars by using the Two Micron All Sky Survey to search for main sequence companions. We have convolved Kurucz models with appropriate filter bandpasses to examine how various combinations separate single sdB stars from sdB+MS binaries. We notice that the 2MASS magnitude limits greatly increase the fraction of inferred sdB+MS binaries and examine a magnitude-limited sample appropriate for single sdB stars.  相似文献   

METEORITIC METAL IN APOLLO 16 SAMPLES     

S. J. B. Reed  S. R. Taylor 《Meteoritics & planetary science》1974,9(1):23-34

One hundred metallic particles from Apollo 16 soils (61181, 65701) and rocks (60018, 60315, 66055) have been investigated microscopically and by electron microprobe analysis. Their cobalt content indicates a meteoritic origin for all but one particle. However, most contain more phosphorus than typical meteoritic metal, possibly due to the reduction of phosphates in the lunar rocks. Compositions of coexisting kamacite and schreibersite indicate temperatures of about 550–650°C which are thought to have occurred during metamorphism. The bulk nickel content of the lunar metal is somewhat low by comparison with most iron meteorites or the metallic component of common stony meteorites. However, this may be due to compositional changes that occurred after emplacement in the lunar surface layer.  相似文献   

Isotopic Hg in an Allende carbon-rich residue     

G. W. Reed  S. Jovanovic 《Meteoritics & planetary science》1990,25(4):345-346

Abstract— A carbon-rich residue from Allende subjected to stepwise heating yielded two isotopically resolvable types of Hg: one with a ¹⁹⁶Hg/²⁰²Hg concentration ratio the same as terrestrial (monitor) Hg; the other enriched in ¹⁹⁶Hg relative to ²⁰²Hg by ～60%. Hg with the 202 isotope enriched relative to 196, as is found in bulk Allende, was not observed. Whether the result of mass fractionation or nucleosynthesis, the distinct types of Hg entered different carrier phases and were not thermally mobilized since the accretion of the Allende parent body.  相似文献   

Experimental determination of the effect of the ratio of B/Al on glass dissolution along the nepheline (NaAlSiO₄)-malinkoite (NaBSiO₄) join     

E.M. Pierce  L.R. Reed  B.P. McGrail  C.F. Windisch  J. Broady 《Geochimica et cosmochimica acta》2010,74(9):2634-5309

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THE GOSNELLS IRON — A FRAGMENT OF THE MOUNT DOOLING OCTAHEDRITE     

J.R. De Laeter  G.J.H. McCall  S.J.B. Reed 《Meteoritics & planetary science》1972,7(4):469-478

A 1.5 kg iron found in 1960 at Gosnells, near Perth, Western Australia, belongs to Wasson's chemical group I-An3 and is structurally unusual, being best described as a heat-altered granular coarse octahedrite. It is chemically and structurally very similar to the Mount Dooling iron, found in 1909 about 400 km away, and has a fracture surface which fits the Mount Dooling mass very closely. The Gosnells fragment was probably transported by human agency, though it is not known when or by whom.  相似文献   

Spatial interpolation methods for nonstationary plume data   总被引：1，自引：0，他引：1  

Reed PM  Ellsworth TR  Minsker BS 《Ground water》2004,42(2):190-202

Plume interpolation consists of estimating contaminant concentrations at unsampled locations using the available contaminant data surrounding those locations. The goal of ground water plume interpolation is to maximize the accuracy in estimating the spatial distribution of the contaminant plume given the data limitations associated with sparse monitoring networks with irregular geometries. Beyond data limitations, contaminant plume interpolation is a difficult task because contaminant concentration fields are highly heterogeneous, anisotropic, and nonstationary phenomena. This study provides a comprehensive performance analysis of six interpolation methods for scatter-point concentration data, ranging in complexity from intrinsic kriging based on intrinsic random function theory to a traditional implementation of inverse-distance weighting. High resolution simulation data of perchloroethylene (PCE) contamination in a highly heterogeneous alluvial aquifer were used to generate three test cases, which vary in the size and complexity of their contaminant plumes as well as the number of data available to support interpolation. Overall, the variability of PCE samples and preferential sampling controlled how well each of the interpolation schemes performed. Quantile kriging was the most robust of the interpolation methods, showing the least bias from both of these factors. This study provides guidance to practitioners balancing opposing theoretical perspectives, ease-of-implementation, and effectiveness when choosing a plume interpolation method.  相似文献