moisture gradient
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Moisture vapor transmission rate — (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. There are many industries where moisture control is critical. Moisture sensitive foods and pharmeceuticals are put in packaging… … Wikipedia
Ruling gradient — The ruling gradient (or ruling grade) of a section of railway line is the steepest section of that line. The ruling gradient is important in assigning locomotives to trains, as the locomotives must have sufficient power to pull the train over the … Wikipedia
Environmental gradient — An environmental gradient is a gradual and continuous change in communities and environmental condition. The gradients can be related to environmental factors such as altitude, temperature and moisture supply.See also: Biome, thermocline, cline… … Wikipedia
Wood drying — (also seasoning lumber or timber seasoning) refers to reducing the moisture content of wood prior to its use. For some purposes wood is not dried at all (it is used green ) [http://en.wikipedia.org/wiki/Green wood] . Often the wood needs to be in … Wikipedia
Biome — The planet Earth Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms,[1] and are of … Wikipedia
Surface weather analysis — A surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground based weather stations. [ Air Apparent: How Meteorologists Learned… … Wikipedia
In-vessel composting — is an industrial form of composting biodegradable waste that occurs in enclosed reactors. These generally consist of metal tanks or concrete bunkers in which air flow and temperature can be controlled. In vessel composting can also refer to… … Wikipedia
Frozen noodles — and chilled noodles are types of instantly prepared Asian (or European) noodles that are sold frozen or chilled. These products differ from prepackaged dehydrated noodles in a number of ways, both in flavor, texture and in that they normally come … Wikipedia
Heinz Ellenberg — (August 1, 1913 in Hamburg Harburg May 2, 1997 in Göttingen) was a German biologist, botanist and ecologist. Ellenberg was an advocate of viewing ecological systems through holistic means. Life Ellenberg s father (a school teacher) died during… … Wikipedia
African easterly jet — The African easterly jet is a region of the lower troposphere over West Africa where the seasonal mean wind speed is maximum and easterly. The jet develops because heating of the West African land mass during the Northern Hemisphere summer… … Wikipedia
hydrotaxis — n. [Gr. hydor, water; taxis, arrangement] A taxis in response to a moisture gradient initiating stimulus … Dictionary of invertebrate zoology
