Exposure is a function of concentration and time: "An event that occurs when there is contact at a boundary between a human and the environment with a contaminant of a specific concentration for an interval of time" (NRC 1991).
The laboratory scale experiments on nutrient strength were carried out in 250-mL plastic cups filled with 200 mL ADSW of a specific concentration: 100.0%, 50.0%, 25.0%, 15.0%, 10.0%, 5.0%, 2.5%, or 1.5%.
The catalysts presented a bifunctional character with a maximum of activity at a specific concentration of metal and particle size.
The point at which electrical and Van der Waals' forces exactly balance can be identified with a specific electrolyte concentration, known as the critical flocculation concentration (CFC).
According to different concentrations of T3, the chemosensitization test comprised nine independent tests, each contained eight groups with a specific T3 concentration.
The structure could have been fabricated via the formation of "hard" micelles in the reaction system with a specific surfactant concentration and CO2 composition.
Furthermore, on modulating the ratio of volumetric flow rates between the two inlet streams, an excellent mixing function with a specific prearranged concentration of a mixture and a decreased pressure loss are achieved.
The candidate amino acids with the specific concentration values from breast cancer patients were introduced simultaneously into the multiple chemicals gradients generator which was constructed by spatially controlled self-assembly of particles in microchannels.
The remainder of each culture was treated with the specific concentration of rapamycin for the indicated time and then equal numbers of cells were gently pelleted, washed with sterile water, diluted, and spotted, as described.
