In porous media

Xem 1-14 trên 14 kết quả In porous media
  • We have attempted to explain the concepts which have been used and developed to model the stochastic dynamics of natural and biological systems. While the theory of stochastic differential equations and stochastic processes provide an attractive framework with an intuitive appeal to many problems with naturally induced variations, the solutions to such models are an active area of research, which is in its infancy. Therefore, this book should provide a large number of areas to research further.

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  • In this research monograph, we explain the development of a mechanistic, stochastic theory of nonfickian solute dispersion in porous media. We have included sufficient amount of background material related to stochastic calculus and the scale dependency of diffusivity in this book so that it could be read independently.

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  • (BQ) Part 2 book "Fundamentals of the finite element method for heat and fluid flow" has contents: Convection heat transfer, convection in porous media, some examples of fluid flow and heat transfer problems, implementation of computer code.

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  • Humidity is one of the main causes of decay in buildings, particularly rising damp, caused by the migration of moisture from the ground through the materials of the walls and floors via capillary action. This water comes from groundwater and surface water. The height that moisture will reach through capillary action depends upon factors such as the quantity of water in contact with the particular part of the building, surface evaporation conditions, wall thickness, building orientation and the presence of salts....

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  • Starting from a derivation of the conservation equations for multicomponent multiphase flows in porous media and a discussion of convective vs. diffusive/dispersive transport, the reader is introduced to a mathematical framework, based on the method of characteristics, for solving convection-dominated transport problems.

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  • Tham khảo sách 'liquid-gas relative permeabilities in fractures: effectsof flow structures, phase transformation and surface roughness', kỹ thuật - công nghệ, hoá học - dầu khí phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • CO2 injection has recently been shown to provide significant enhanced oil recovery from naturally fractured reservoirs 1 . Li et al. (2000) performed CO2 injection at 1750 psig on artificially-fractured cores after water flooding in a dead-oil system. Gravity drainage was suggested to be the dominant recovery mechanism in these tests, with significant tertiary oil recovery after water flooding. The authors observed that the recovery of initial oil at the start of the CO2 injection declined as the rock permeability decreased and the initial water saturation increased. Darvish et al.

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  • AbstractHumidity is one of the main causes of decay in buildings, particularly rising damp, caused by the migration of moisture from the ground through the materials of the walls and floors via capillary action. This water comes from groundwater and surface water. The height that moisture will reach through cap illary action depends upon factors such as the quantity of water in contact with the particular part of the building, surface evaporation conditions, wall thickness, building orientation and the presence of salts.

    pdf270p namde04 02-05-2013 35 8   Download

  • (BQ) Part 2 book "Heat transfer handbook" has contents: Heat exchangers, heat transfer in electronic equipment, heat transfer enhancement, porous media, heat pipes, heat transfer in manufacturing and materials processing, microscale heat transfer, direct contact heat transfer.

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  • Constructed wetlands are known widely by their characteristic properties like utilization of natural processes, simple and easy of construction, operation and maintain as well. The constructed subsurface flow wetland is designed as a tank with an impervious boundary to prevent seepage and contain a suitable porous media in which emergent plants grow. The water remains below the surface of the gravel/stone/rock media. Soil in constructed subsurface flow wetland absorbs and stores organic matter several years.

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  • Wave propagation in solids has been widely studied and principal advances in this field have been achieved not only for the improvements of calculus methods, but also for the high progresses attained in the description of new types of materials. This book presents innovative and original research studies describing some enhancement in both directions.

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  • The process of analyte retention in high-performance liquid chromatography (HPLC) involves many different aspects of molecular behavior and interactions in condensed media in a dynamic interfacial system. Molecular diffusion in the eluent flow with complex flow dynamics in a bimodal porous space is only one of many complex processes responsible for broadening of the chromatographic zone.

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  • The book “Holograms –Recording Materials and Applications” comprises five sections. The first section has eight chapters on holographic recording materials including ionic liquids in photopolymerisable materials (Chapter 1), Norland optical adhesive 65® as holographic material (Chapter 2), porous glass and polymer nanocomposite (Chapter 3), amorphous chalcogenide films (Chaper 4), azo-dye containing materials (Chapter 5 and 6) and photochromic materials (Chapter 7 and 8). The remaining four sections are dedicated to a variety of holographic applications....

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  • Zhou et al. Nanoscale Research Letters 2011, 6:364 http://www.nanoscalereslett.com/content/6/1/364 NANO EXPRESS Open Access Electro-synthesis of novel nanostructured PEDOT films and their application as catalyst support Cuifeng Zhou1, Zongwen Liu1*, Yushan Yan2, Xusheng Du3*, Yiu-Wing Mai3 and Simon Ringer1 Abstract Poly(3,4-ethylenedioxythiophene) (PEDOT) films doped with nitric and chlorine ions have been electrochemically deposited simply by a one-step electrochemical method in an aqueous media in the absence of any surfactant.

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