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Browsing ELibrary by Title
Now showing items 10314-10333 of 21934
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(2001)This paper presents a new statistical method for assimilating precipitation data from different sensors operating over a range of scales. The technique is based on a scale-recursive estimation algorithm which is computationally ...
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SCALING EFFECTS ON MODELED SURFACE ENERGY-BALANCE COMPONENTS USING THE NOAH-OSU LAND SURFACE MODEL (2003)As surface exchange processes are highly non-linear and heterogeneous in space and time, it is important to know the appropriate scale for the reasonable prediction of these exchange processes. For example, the explicit ...
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(1995)We propose a general approach for interpreting geochemical histograms, dividing the distributions into two classes and four subclasses (normal and multimodal distributions, and fractal and multifractal distributions). The ...
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(2002)Propagation of electromagnetic (EM) waves from an earthquake focus in the conductive Earth has been investigated using 1/1,000,000 scaling models taking earth-ionosphere and ocean-Moho plane parallel-plate waveguides into ...
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(2001)The fast Fourier transform, maximum entropy method, Lomb's method of spectral analysis and rescaled range analysis are applied to the study of extinction patterns. Using a database of marine families from mid-Permian to ...
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(2002)Soil moisture is spatially and temporally highly variable, and it influ-ences a range of environmental processes in a nonlinear manner. This leads to scale effects that need to be understood for improved prediction of ...
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(2001)The volumes and enthalpies of mixing, ΔV Mixd ΔHMixf binary solid-solution aluminosilicate garnets have been studied by computer simulation. The use of "average atoms" to simulate solid solution was found to give results ...
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(2002)A previous method proposed to measure the fractal dimension of pore spaces is adapted and modified for 2-D fracture networks. The method relies on scanning a 2-D fracture network through successive straight lines from top ...
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(1995)The results of scanning calorimetric measurements on crystalline albite, diopside, diopside-anorthite, and diopside-wollastonite-enstatite are reported in the temperature range of 1300 K to 1775 K. The results for albite ...
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(2004)Scanning electron microscopy (SEM) was used to investigate grain texture and pore structure development within various compositions of pure sI and sII gas hydrates synthesized in the laboratory, as well as in natural samples ...
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(1997)Chemical exchange between coexisting scapolite and plagioclase was studied for both a set of natural pairs from a regionally metamorphosed terrain (450-670°C, 3.5-6 kbar) in northern Idaho and for eight synthetic pairs ...
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(2001)The diffraction of SH waves by a finite plane crack is studied. The classical Sommerfeld solution for a semi-infinite straight reflecting screen is used as a building block to calculate the diffracted field generated by a ...
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SCATTERING ATTENUATION IN RANDOMLY LAYERED STRUCTURES WITH FINITE LATERAL EXTENT: A HYBRID Q MODEL (2004)Since the pioneering work of O'Doherty and Anstey (1971), much research has been devoted to understand the effect of stratigraphic filtering of seismic waves, i.e., the problem of multiple scattering in 1D random structures ...
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(2004)The variation of scattering attenuation ratios of P and S waves (Q -1 P /Q -1 S ) is investigated in elastic media by using numerical simulations and theoretical expressions based on the first-order Born approximation. ...
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(2002)Analytical expressions for scattering coefficients for S-wave incidence have been derived for the medium defined by the exponential correlation function. Low- and high-frequency asymptotic characteristics of the total ...
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(2004)Multiple scattering is a phenomenon generic to wave propagation in heterogeneous media. In order to study scattering effects caused by inhomogeneities within an elastic medium we use the direct solution method (DSM). This ...
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(2004)Radio wave scintillations are rapid fluctuations in both amplitude and phase of signals propagating through the atmosphere. GPS signals can be affected by these disturbances which can lead to a complete loss of lock when ...
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SCLEROSPONGES AS A NEW POTENTIAL RECORDER OF ENVIRONMENTAL CHANGES: LEAD IN CERATOPORELLA NICHOLSONI (2000)Lead concentrations have been analyzed on a 223 yr profile through the aragonitic skeleton of the reef-building Caribbean sclerosponge Ceratoporella nicholsoni by using laser-ablation inductively coupled plasma-mass ...
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(2002)New scorpionflies of the family Liassophilidae, Izjumus ukrainensis gen. et sp. nov. and Garazhovka triassica gen. et sp. nov., are described from the Triassic locality of Garazhovka, Ukraine.
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(2002)This paper develops mass fraction models for transport and fate of agricultural pollutants in structured two-region soils. Mass fraction index models, based on a semi-infinite domain solution, are derived that describe ...
Now showing items 10314-10333 of 21934