The mechanics of transport and ow in a random porous medium are addressed in this paper. The hydraulic properties of the porous medium are modeled as spatial random processes. The heterogeneity of the medium is modeled as a superposition of scales of heterogeneity that are statistically uncorrelated. The stochastic process making up a hydraulic property is thus represented as a linear combinati...

A 200 keV heavy ion beam probe (HIBP) system is being installed on the Madison Symmetric Torus (MST) reversed eld pinch (RFP). Measurements of electron density uctuations and electrostatic potential uctuations in MST are proposed here. For the rst time particle transport induced by electrostatic eld uctuations in the core region of MST can be measured through the simultaneous measurement of ele...

In the present paper, an application of discriminant function analysis meteorological parameters for developing suitable statistical models to forecast wheat yield in Faizabad district Eastern Utter Pradesh has been demonstrated. Time series data on 20 years (1990-91 2009-10) have divided into three groups, viz. congenial, normal, and adverse based de-trended distribution. Considering these gro...

Within the ?! model of coupled nucleon-meson systems, a generalized rel-ativistic Lennard{Balescu{equation is presented resulting from a relativistic random phase approximation (RRPA). This provides a systematic derivation of relativistic transport equations in the frame of nonequilibrium Green's function technique including medium eeects as well as uctuation eeects. It contains all possible pr...

The deenition of matter states on spacelike hypersurfaces of a 1+1 dimensional black hole spacetime is considered. The eeect of small quantum uctuations of the mass of the black hole due to the quantum nature of the infalling matter is taken into account. It is then shown that the usual approximation of treating the gravitational eld as a classical background on which matter is quantized, break...

The diagrammatic linear response formalism for the Coulomb drag in two{layer systems is developed. This technique can be used to treat both elastic disorder and intralayer interaction eeects. In the absence of intralayer electron{electron correlations we reproduce earlier results, obtained using the kinetic equation and the memory{function formalism. In addition we calculate weak{localization c...

Linear prediction (LP) coe cients are used to describe the formant structure of a speech waveform. Many factors contribute to the frame-to-frame uctuation of these parameters. These variations adversely a ect the performance of the LP quantizer and the quality of the synthesized speech. For voiced speech, e cient coding of the pitch pulses at the output of the inverse formant lter relies on the...

The demagnetization processes and the magnetic viscosity have been studied on a bulk-amorphous Nd 60 Fe 30 Al 10 rod at room temperature. Many unique magnetic properties have been found in this novel hard magnetic material. A clear hysteresis was present on the minor loops, though the total and irreversible susceptibilities exhibited single-phase magnet behavior. A signi"cant magnetic viscosity...

1 The invasion of habitats by non-native plant and animal species is a global phenomenon with potentially grave consequences for ecological, economic, and social systems. Unfortunately, to date, the study of invasions has been primarily anecdotal and resistant to generalization. 2 Here, we use insights from experiments and from long-term monitoring studies of vegetation to propose a new theory ...

This paper proposes a new method for reconstruction a shape of skin surface replica from shading image sequence taken with di erent light source directions. Since the shading images include shadows caused by surface height uctuation, and specular and inter re ections, the conventional photometric stereo method is not suitable for reconstructing its surface accurately. In the proposed method, we...