Taking into account linear relations between frequency estimates of different modes, the linear Principal Component Analysis (PCA) is applied to remove those effects.
If the difference is greater than the γ threshold, TCP-Vegas changes from slow-start mode to the linear increase/linear decrease mode as described above.
Full spectra (600 2000 m/z range) were collected on a Thermo Orbitrap Discovery XL in profile mode using the linear ion trap analyzer (ITMS mode).
Where specified, targeted MSn experiments were performed using collision-induced dissociation (CID) mode using the linear ion trap analyzer of the LTQ Orbitrap machine [24], [29].
MSMS scans of the four most abundant doubly- and triply-charged peaks in the FTMS scan were recorded in data-dependent mode in the linear trap (MSMS threshold = 5.000).
MS/MS spectra were acquired in the positive ion mode using the linear ion trap, in centroid format, with the following parameters: isolation width 3 m/z units, normalized collision energy 40%, and default charge state 1+.
MALDI-TOF MS operating in the reflectron mode, instead of the linear mode, improved the resolution and revealed monoisotopic masses of 4373.3 and 4442.0 Da for M. polystroma and M. fructicola, respectively (Fig. 4a).
DOI: http://dx.doi.org/10.7554/eLife.04970.025 If the road-blocking mechanism is correct, then H-NS must bind DNA significantly more tightly in the bridging mode than in the linear mode.
The code is designed to find the characteristic modes of the linear perturbations away from the plasma equilibrium, with an emphasis on the unstable modes.
The control laws are designed to suppress the unstable modes using the linear models of the motion near each unstable state.
