Even and odd q-deformed charge coherent states are constructed , their (over)completeness proved and their generation explored. A D-algebra realization of the SU q (1,1) generators is given in terms of them. They are shown to exhibit SU q (1,1) squeezing and two-mode q-antibunching, but neither one-mode, nor two-mode q-squeezing.

Charged water droplets generated by electrospray, sonic spray, and a vibrating orifice aerosol generator (VOAG) have been studied by digital macrophotography and image charge detection mass spectrometry. Image charge detection mass spectrometry provides information on the droplet size, charge, and velocity after transmission through a capillary interface. The digital images provide the droplet ...

An increasing number of experiments in the field of low energy ion physics (< 25 keV/charge) requires pulsed beams of highly charged ions. Whereas for high-intensity beams (> μA) a pulsed beam chopper, installed downstream to the analyzing dipole, is used. For low-intensity beams (< 100 nA) the ion intensity delivered during the pulse may be increased by operating the ECR discharge in the after...

In this paper we consider the problem of estimating the state of a system with perspective outputs. We formulate the problem in a deterministic setting by searching for the value of the state that is “most compatible” with the dynamics, in the sense that it requires the least amount of noise to explain the measured output. We show that, under appropriate observability assumptions, the optimal e...

In this paper we consider the problem of estimating the state of a system with perspective outputs. We formulate the problem in a deterministic setting by searching for the value of the state that is “most compatible” with the dynamics, in the sense that it requires the least amount of noise to explain the measured output. We show that, under appropriate observability assumptions, the optimal e...

The discontinuous conduction mode (DCM) of the inductor current is an effective way to achieve high efficiency and power density inverters because it has advantages zero-current switching small inductance filter inductor. Although DCM can operate at a fixed frequency, there been no linear model for realizing high-performance digital control. This paper provides solution this problem. Firstly, f...

In sampling mode, S, and S, are on, the voltage across C,,tracks Vi,,, and 4 is configured as a unity-gain amplifier. In transition to the hold mode, S, and S, turn off and C,maintains a unity-gain loop around 4. In this topology, both charge injection of S, and S, and hold-mode droop appear as a common-mode voltage at the inputs of 4, allowing smaller values for C, and C , than in a single-en...

A new method for displaying CE-MALDI-MS data for proteolytic digests is described. This data display mode yields distinct charge-based trends for plots of mass-to-charge (m/z) versus CE migration time. These trends arise owing to the in-solution charge state of the peptides, and this interpretation was confirmed by using empirical peptide electromigration models and peptide standards as charge-...