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  • polymer
  • This book gathers the various aspects of the porous polymer fieldinto one volume. (abebooks.com)
  • He is an editor of the Journal of Polymer Engineering and has organized severalconferences on porous polymers. (abebooks.com)
  • IGERT fellow Jennifer Novotney designed and synthesized a conjugated porous polymer that was able to detect trinitrotoluene (TNT) in low parts per billion concentrations. (igert.org)
  • Permeable solutions can be based on: porous asphalt and concrete surfaces, concrete pavers (permeable interlocking concrete paving systems - PICP), or polymer-based grass pavers, grids and geocells. (wikipedia.org)
  • voids
  • Another aspect of our invention is that it makes possible the provision of a thin porous sheet having voids distributed in it so that the resulting structure is substantially stronger than prior art porous sheets of the same permeability. (google.com)
  • A porous medium or a porous material is a material containing pores (voids). (wikipedia.org)
  • Porous pavements and concrete pavers (actually the voids in-between them) enable stormwater to drain through a stone base layer for on-site infiltration and filtering. (wikipedia.org)
  • microstructure
  • Due to the possibility of modeling the microstructure, porous glasses have a high potential as a model system. (wikipedia.org)
  • In scientific literature, porous glass is a porous material containing approximately 96% silica, which is produced by an acidic extraction or a combined acidic and alkaline extraction respectively, of phase separated alkali borosilicate glasses, and features a three-dimensional interconnected porous microstructure. (wikipedia.org)
  • materials
  • In this fashion, thebook connects and integrates topics from seemingly disparatefields, each of which embodies different aspects inherent in thediverse field of porous polymeric materials. (abebooks.com)
  • Porous carbon or activated carbons are important materials for the purification of gases and liquids. (innovations-report.com)
  • Porous materials can be created by a variety of methods and exhibit properties that are advantageous in certain applications, e.g. insulation, energy absorption, and core materials in sandwich panels. (imechanica.org)
  • Would someone share some knowledge on the mechanics of the porous materials. (imechanica.org)
  • Many natural substances such as rocks and soil (e.g., aquifers, petroleum reservoirs), zeolites, biological tissues (e.g. bones, wood, cork), and man made materials such as cements and ceramics can be considered as porous media. (wikipedia.org)
  • One of the Laws for porous materials is the generalized Murray's law. (wikipedia.org)
  • It is applicable to an enormous range of porous materials and has a broad scope in functional ceramics and nano-metals for energy and environmental applications. (wikipedia.org)
  • Nanoporous materials NMR in porous media Percolation theory Reticulated foam Hierarchically Structured Porous Materials: From Nanoscience to Catalysis, Separation, Optics, Energy, and Life Science - Wiley Online Library. (wikipedia.org)
  • A further special advantage of porous glasses compared to other porous materials, is that they can be made not only as powder or granulate, but also as larger pieces in almost any user defined shape and texture. (wikipedia.org)
  • Nuclear magnetic resonance (NMR) in porous materials covers the application of using NMR as a tool to study the structure of porous media and various processes occurring in them. (wikipedia.org)
  • Although some porous paving materials appear nearly indistinguishable from nonporous materials, their environmental effects are qualitatively different. (wikipedia.org)
  • Whether it is pervious concrete, porous asphalt, paving stones or concrete or plastic-based pavers, all these pervious materials allow stormwater to percolate and infiltrate the surface areas, traditionally impervious to the soil below. (wikipedia.org)
  • pores
  • More particularly, this invention relates to colorless, transparent, variable transmission porous glass, having impregnated in the pores thereof, a solution of an aromatic diaminetetraacetic acid, which glass darkens and remains transparent upon contact with ultraviolet light but reverts to its colorless condition upon removal of said ultraviolet light. (google.com)
  • It is a further object of the present invention to provide colorless, transparent, variable transmission porous glass having impregnated in the pores thereof, a solution of an aromatic diaminotetraacetic acid compound, which glass darkens upon contact with ultraviolet light and returns to its original colorless form upon removal of said light. (google.com)
  • Because these silicon particles have lots of pores, they have a large surface area and act as an effective catalyst when sunlight shines on this porous silicon and water. (ecnmag.com)
  • compounds
  • We have discovered that solutions of aromatic diaminotetraacetic acid compounds may be incorporated into porous glass and function photochromically, as such, in said glass, when contacted with ultraviolet light. (google.com)
  • medium
  • The displacement of a viscous fluid from a porous medium. (springer.com)
  • The penetration of a fluid into a porous medium or Hele-Shaw cell containing a more viscous liquid. (springer.com)
  • Furthermore, the texture of porous glasses is influenced by the concentration of the extraction medium and the ratio of fluid to solid. (wikipedia.org)
  • Mass conservation of fluid across the porous medium involves the basic principle that mass flux in minus mass flux out equals the increase in amount stored by a medium. (wikipedia.org)
  • Porous medium is defined as a material volume consisting of solid matrix with an interconnected void. (wikipedia.org)
  • Forced convection heat transfer in a confined porous medium has been a subject of intensive studies during the last decades because of its wide applications, including: Chemical, Environmental, Mechanical, Geological and Petroleum. (wikipedia.org)
  • The basic problem in heat convection through porous media consists of predicting the heat transfer rate between a deferentially heated, solid impermeable surface and a fluid-saturated porous medium.We begin with constant wall temperature. (wikipedia.org)
  • sponge
  • Bisi O, Ossicini S, Pavesi L (2000) Porous silicon: a quantum sponge structure for silicon based optoelectronics. (springer.com)
  • silicon
  • Canham LT (1997) Properties of porous silicon, EMIS datareview series no 18. (springer.com)
  • Canham LT, Houlton MR, Leong WY, Keen JM (1991) Atmospheric impregnation of porous silicon. (springer.com)
  • Cao L, Price TP, Weiss M, Gao D (2008) Super water- and oil-repellent surfaces on intrinsically hydrophilic and oleophillic porous silicon films. (springer.com)
  • Cullis AG, Canham LT, Calcott PDJ (1997) The structural and luminescence properties of porous silicon. (springer.com)
  • Giaddui T, Earwaker LG, Forcey KS, Loni A, Canham LT (1998) Improved capping layers for suppression of ambient ageing in porous silicon. (springer.com)
  • Porous silicon manufactured in a bottom up procedure using solar energy can be used to generate hydrogen from water, according to a team of Penn State mechanical engineers, who also see applications for batteries, biosensors and optical electronics as outlets for this new material. (ecnmag.com)
  • The surface area of this porous silicon is high," said Donghai Wang, assistant professor of mechanical engineering. (ecnmag.com)
  • The standard method for manufacturing porous silicon is a subtraction method, similar to making a sculpture. (ecnmag.com)
  • Typically, porous silicon is produced by etching, a process in which lots of material is lost. (ecnmag.com)
  • This porous silicon can generate a good amount of hydrogen just from sunlight," said Wang. (ecnmag.com)
  • The researchers are also looking into using this porous silicon as the anode in a lithium ion battery. (ecnmag.com)
  • material
  • My intention is to develop an user defined material model considering the material as anisotropic porous-visco-elastic. (imechanica.org)
  • The skeletal material is usually a solid, but structures like foams are often also usefully analyzed using concept of porous media. (wikipedia.org)
  • Darcy's law is valid for situation where the porous material is already saturated with the fluid. (wikipedia.org)
  • structures
  • Thus, in addition to the provision of through passages for transpiration cooling and the like, our invention makes possible thin sheets of cellular structure having improved relation of strength to weight as compared to other porous structures. (google.com)
  • invention
  • The presented invention provides a process for the production of porous carbon by embedding inorganic nanoparticles into a carbonaceous matrix followed by a reaction with a halogen gas. (innovations-report.com)
  • volume
  • Perhaps one may affix a starting point for the study of porous media as the year 1794 when Reinhard Woltman introduced the concept of volume fractions when trying to understand mud. (frontiersin.org)
  • experimental
  • However, we will present the use of porous media in a number of contexts such as fuel cells, frost heave, etc. besides presenting fundamental theories and experimental results. (frontiersin.org)
  • structure
  • Precondition for repetitious manufacturing of porous glass is the knowledge about structure determining and structure controlling parameters. (wikipedia.org)
  • research
  • The situation today in porous media research is a patchwork of domains, some of which are advancing at high speed, whereas other domains remain where they have been for decades. (frontiersin.org)