Topic
Pulse duration
About: Pulse duration is a research topic. Over the lifetime, 19429 publications have been published within this topic receiving 286507 citations.
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TL;DR: In this article, a comprehensive study on the various trace analytical aspects and particularly the voltammetric parameters to optimize the performance of differential pulse anodic stripping voltammetry (d.p.a.v.) in connection with the mercury film electrode (MFE) has been carried out.
70 citations
TL;DR: Heterodyne beating between two differently dispersed optical pulses in a photodetector produces the linearly chirped microwave waveform based on spectral filtering and unbalanced dispersion.
Abstract: We propose a method to generate a widely tunable linearly chirped microwave waveform based on spectral filtering and unbalanced dispersion. Heterodyne beating between two differently dispersed optical pulses in a photodetector produces the linearly chirped microwave waveform. Desired waveforms with flexible and independent control of the center frequency and sweep bandwidth can be obtained by simply tuning two optical filters. Simulation and experimental investigations are carried out, and the results are in good agreement. The measured microwave waveform has ∼5.2-ns pulse duration and ∼64-GHz sweep bandwidth, corresponding to a time-bandwidth product of ∼166.4 and a compression ratio of ∼248.
70 citations
TL;DR: In this paper, the exact impulse response of field parameters for any field point on or off axis for the case where a circular disc radiator face is subjected to a displacement step corresponding to a velocity impulse is reviewed.
Abstract: The exact impulse response of field parameters for any field point on or off axis for the case where a circular disc radiator face is subjected to a displacement step corresponding to a velocity impulse is reviewed. By convolution, the transient field pattern for any arbitrary motion of the disc can be obtained. The exact response for a half-sine monopulse is computed. An approximate representation of the transient pressure response to the velocity impulse input at the disc is derived, and it is shown to correspond to the replica pulses described previously. The regions of validity of the approximation are quite limited and the replica pulses are displaced in time from the positions formerly attributed to them. The displaced replica approximation is applied to an examination of the structure of the near field for continuous sinusoidal excitation and a plot of positions of extrema is produced. It is shown that this approximation gives good agreement with the exact values and is superior to the previous published approach in this regard. For short sinusoidal pulses the effect of pulse length on the field pattern, and of field point on the time history of a transient wave are shown. When the excitation is a short sinusoidal pulse the effect of the pulse length and field point position on the field pattern and wave shape are demonstrated.
70 citations
TL;DR: It is found that for Delta/delta approximately 1, the diffraction pattern obtained from q-space MR data are shallower than when the short gradient pulse (SGP) approximation is satisfied, and the estimated compartment size is, as expected, smaller than the real size.
70 citations
TL;DR: Voltage, pulse length, interelectrode distance, active tip length, ATL, and electrode configuration each have a strong effect on temperature development and distribution during IRE.
70 citations