The ability to numerically simulate single phase and multiphase ow of uids in porous media is extremely important in developing an understanding of the complex phenomena governing the ow. The ow is complicated by the presence of heterogeneities in the reservoir at many diierent length scales and by phenomena such as diiusion and dispersion. These eeects must be eeectively modeled by terms in co...

Background: Aflatoxins (AFs) are the most prevalent carcinogenic mycotoxins, produced mainly by Aspergillus flavus and A. parasiticus. The general purpose of the present study was to use Dehydroacetic Acid (DHA) and Ozonated Water (OW) to control A. flavus growth and accumulation of Aflatoxin B1 (AFB1) in Iranian pistachios. Methods: Three treatment pistachio groups were separately immersed ...

In the title compound, C15H23N3O3S·H2O, the piperidine ring has a chair conformation. In the crystal, the sulfonamide mol-ecules are linked by N-H⋯O hydrogen bonds, forming a layer parallel to (10-1). The layers are inter-connected via N-H⋯Ow, Ow-H⋯N and Ow-H⋯O (w = water) hydrogen bonds, forming a three-dimensional network.

The ability to numerically simulate single phase and multiphase ow of uids in porous media is extremely important in developing an understanding of the complex phenomena governing the ow. The ow is complicated by the presence of heterogeneities in the reservoir and by phenomena such as diiusion, dispersion, and viscous ngering. These eeects must be mod-eled by terms in coupled systems of nonlin...

Contaminant transport by liquid ow in a porous medium is modeled by the addition of a stochastic term to Darcy's ow equation. The resulting stochastic diierential equation is studied using results from the theory of diiusions as embodied in the Dynkin formula. The resulting integral equation for the probability distribution of uid elements is solved for the case of a spatially homogeneous mediu...

This article presents an overview of optical wireless (OW) communication systems that operate both in the short(personal and indoor systems) and the long-range (outdoor and hybrid) regimes. Each of these areas is discussed in terms of (a) key requirements, (b) their application framework, (c) major impairments and applicable mitigation techniques, and (d) current and/or future trends. Personal ...

many diseases are related to cerebrospinal .uid (csf) hydrodynamics. therefore, understanding the hydrodynamics of csf .ow and intracranial pressure is helpful for obtaining deeper knowledge of pathological processes and providing better treatments. furthermore, engineering a reliable computational method is promising approach for fabricating in vitro models which is essential for inventing gen...

Particle deposition on a square cylinder placed in a rectangular channel was investigated for unsteady vortical  ows. For the two-phase  ow simulations, the unsteady gas  ow Ž eld was computed by solving the incompressible Navier-Stokes equations using a staggered-grid control volume approach and the Marker-andCell (MAC) technique. The particle dynamics were simulated using themodiŽ edBasset...

We review and discuss some different techniques for describing local dispersion properties in fluids. A recent Lagrangian diagnostics, based on the Finite Scale Lyapunov Exponent (FSLE), is presented and compared to the Finite Time Lyapunov Exponent (FTLE), and to the Okubo-Weiss (OW) and Hua-Klein (HK) criteria. We show that the OW and HK are a limiting case of the FTLE, and that the FSLE is t...

This paper is an overview of some of the methods developed by the Team for Advanced Flow Simulation and Modeling (THAFSM) [http://www.mems.rice.edu/TAFSM/] to support ̄ow simulation and modeling in a number of ``Targeted Challenges''. The ``Targeted Challenges'' include unsteady ̄ows with interfaces, ̄uid±object and ̄uid±structure interactions, airdrop systems, and air circulation and contamina...