Substitutions critical for expanding substrate profile or increasing hydrolytic activities are efficiently selected under selection pressure of β-lactam use.
In bacteria, a constant selective pressure selects for mutants harboring either higher mean with no noise increase or higher noise with similar mean (Ito et al. 2009).
According to information collection requirements, we selected pressure sensor, designed the data collection, storage and other hardware circuitries and information processing software.
Three different sampling design methods applied to selecting pressure monitoring point locations for estimating pipe roughness coefficients are presented in this paper.
Figure 4 Synchrotron X-ray diffraction patterns of nano (left panel) and micron Ni (right panel) at 298 K and selected pressure conditions, obtained from a single high-pressure experiment.
If operated in an SBR mode with certain selecting pressure, aerobic granules would be easily formed.
Furthermore, the secondary sedimentation tank with a long settling time (2.5 hours) could not offer enough selecting pressure to wash out the poorly settleable sludge.
However, the operational conditions of aerobic granular sludge are strictly limited by factors like reactor configuration, substrate composition, selecting pressure, volume exchange ratio, hydrodynamic shear force, organic loading rate (OLR), feast-famine regime, feeding strategy and cycle time [ 8, 9].
Also, the distribution of RE scores is highly skewed, with only 0.05%% of REs obtaining the highest grade, supporting the hypothesis of a selecting pressure to reduce p53 binding affinity and provide plasticity in the modulation of p53-mediated stress responses in vivo [ 4, 28].
