Duplicates: Two separate samples with separate containers taken at the same time at the same place.
Dyke: An artificial embankment constructed to prevent flooding.
duplicate portion sampling method (diet/food)
duplicate diet study
Study in which test persons consume their ordinary diet but, for each meal, they prepare for subsequent analysis a duplicate portion of all food as prepared, served and consumed.
Duplicate
A second aliquot or sample that is treated the same as the original sample in order to determine the precision of the analytical method. (See aliquot.)
Dust fall Jar ...
Duplicate
Identical splits of individual samples which are analyzed by the laboratory to test for method reproducibility. Samples may be split in the laboratory.
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Vegetative reproduction is used because new individuals can be established that are genetic duplicates (clones) of the parent plants. Most of these methods involve macropropagation - asexual reproduction from intact plant organs.
"Some early curbside recycling programs.waste resources due to bureaucratic overhead and duplicate trash pickups (for garbage and then again for recyclables). But the situation has improved as cities have gained experience." ...
A measured portion of a sample taken for analysis. One or more aliquots make up a sample. (See duplicate.)
Alkaline
The condition of water or soil that contains a sufficient amount of alkali substance to raise the pH above 7.0.
Filtration occurs in nature when rain water soaks into the ground and it passes through hundreds of feet of sand and gravel. This same natural process of filtration is duplicated in water and wastewater treatment plants, ...
Numerical prediction model:a computer program that mathematically duplicates conditions in nature. It is often used to predict the weather.
O
Oceanography:the study and exploration of the ocean.
 See also: Water, Well, Waste, Site, Concentration
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