Our results showed that concentrate density, ethanol content, and precipitation time were the most important parameters that influence the recovery of active compounds in precipitation resultants.
The present study was designed to determine the relationships between the performance of ethanol precipitation and seven process parameters in the ethanol precipitation process of Re Du Ning Injections, including concentrate density, concentrate temperature, ethanol content, flow rate and stir rate in the addition of ethanol, precipitation time, and precipitation temperature.
Imposing w0 = 10 results in a lightly concentrated density surface around the prior cell-type proportions, p0 j, which along with the results suggest that having strong prior information, at least on cell-type proportions, is not required.
Demand for dog walking is very densely concentrated; that density of demand allows a single dog walker to make a full-time living by walking, often simultaneously, dogs who live near one another.
Hence, reinforcement spacing tailored to specific wall functions may provide significant economic benefits when considering reduced reinforcement needs, lessened tensile strength requirements, or shortened bridge deck length based on surcharge placement – all by concentrating reinforcement density at a specific height of a structure.
Artificial reef complexes are generally small in size when compared to natural reefs, and could, therefore, concentrate large densities of fish in a relatively small area.
During bioleaching of arsenic-rich gold concentrates, the density of the mutant bacterial cells reached to 1.13 × 10 cells/mL at 15 days, more than 10 times compared with that of the original culture.
Nucleated cells were concentrated by density gradient centrifugation (500 g for 30 mins), suspended in 5 ml complete medium containing Dulbecco's modified Eagle's medium-High Glucose (DMEM-HG, Gibco, USA) with 10%% v/v fetal bovine serum (FBS, Hyclone, South America) and 1 % penicillin/streptomycin, and incubated in a 25 cm culture flask at 37 °C with 5%% CO2.
It has been reported that continuum solvation models are often inadequate for dealing with ionic solutes that have concentrated charge densities with strong local solute-solvent interactions [37, 38].
The surfactant-stabilized droplets flow to a collection well where they quickly concentrate due to density differences between the oil and aqueous phases, forming a packed bed above the excess oil.
Back in the 1980s the Swiss had a referendum where they decided to concentrate on high-density rather than high-speed.
