Fructose concentrations began to accumulate and reached maximum at 40 h, and then all the concentrations of fructose at various temperature exhibited little variations.
The methanol effluent concentration started to accumulate on day 130, reaching a maximum value of 1,380 mg COD-MeOH l−1 on day 133, corresponding to 31% of the influent methanol concentration (4,500 mg COD-MeOH l−1).
At lower pH it is possible that higher dissolved H2 concentrations are able to accumulate due to slower rates of sulfate reduction.
The light winds and subsidence allow high concentrations of pollutants to accumulate during the night and morning hours, and the land breeze carries the pollutants out over Galveston Bay and into the Gulf of Mexico.
Moreover, the physical parameters of the flow system make it highly implausible that spatial heterogeneity in the flow could develop or allow experimentally relevant concentrations of HSL to accumulate near any of the cells under observation: First, the dimensions of the device and the flow rate of growth medium lead to fluid flow at a very low Reynolds number (Re ~0.03).
How does a carbon concentrating mechanism manage to accumulate CO2 concentrations some 50 1000 times higher than are found in the environment?
The combination with β-alanine further renders the histidine moiety inert to proteogenic reaction with other amino acids, enabling high concentrations to be accumulated in muscle cells, further enhancing its quantitative role as a pH buffer.
The positive relationship between water content and Na+ concentration causes ions to accumulate in vacuoles, which lowers water potential, increases the driving force for water uptake, and increases turgor [ 53].
Halophytes are plants that can survive high concentrations of electrolytes in their environments and are unique in their ability to accumulate concentrations of salts in their leaves that equal or exceed those of seawater without detrimental effects (Flowers et al. 1977).
In order for detrimental concentrations of dissolved O2 to accumulate, the liquid path, and thereby the residence time, would have to be extremely long.
