Understanding the Pores of a Soilless Substrate

soilless substrates is pore space I like to refer to pore space as the “functional” component of a substrate By definition, pore space is the volume available for air and water in a substrate — the substrate volume minus solids In other words, a substrate with 75 percent pore space contains 25 percent solids Wide pores

Porosity and Pore Size Distribution

the pore space affects and is affected by criti-cal aspects of almost everything that occurs in the soil: the movement of water, air, and other fluids; the transport and the reaction of chemi-cals; and the residence of roots and other biota By convention the definition of pore space ex-cludes fluid pockets that are totally enclosed

Pore Chemistry of Metal Organic Frameworks

Jan 10, 2020 · The pore chemistry of MOFs is articulated in terms of site isolation, coupling, and cooperation and relate that to their functions in guest recognition, catalysis, ion and electron transport, energy transfer, pore-dynamic modulation, and interface construction It is envi-sioned that the ultimate control of pore chemistry requires arranging func-

Understanding Terminology in Regards to Filter Ratings

the size of the largest pore (see above) Such a filter can be integrity tested using a non-destructive test method and the data can be used to determine the actual size of the largest pore Absolute ratings can only be applied to membrane filters (see definition below) due to the requirement of a definable pore

Introduction to TFF

and have pore diameters from 1 to 100 Å (angstrom=100 picometers) Used for fractionation, concentration and desalting * Reverse osmosis –separates very low molecular weight materials (salts, viruses, microorganisms, pyrogens, etc ) from a liquid (water) that is under pressure flow using a special RO membrane that has very small

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