نتایج جستجو برای: asymmetric rectangular waveform

تعداد نتایج: 103222  

2012
Mario A. Meza Cuevas Lait Abu Saleh Dietmar Schroeder Wolfgang H. Krautschneider

Electrical Neurostimulation has been effective in several medical therapies and also for restoring physiological, sensory and neuromuscular deficits. The rectangular pulse waveform has been used as a standard shape for neural stimulation. However, it has been shown that non-rectangular waveforms provide a more energy-efficient neural stimulation. An ASIC has been developed composed of a stimula...

Journal: :Optics express 2012
Zhongwei Tan Chao Wang Eric D Diebold Nick K Hon Bahram Jalali

High-throughput real-time optical integrators are of great importance for applications that require ultrafast optical information processing, such as real-time phase reconstruction of ultrashort optical pulses. In many of these applications, integration of wide optical bandwidth signals is required. Unfortunately, conventional all-optical integrators based on passive devices are usually sensiti...

2015

Pulse shaping of a signal at base-band forms a more important tool in controlling and analyzing the parameters like ISI, the modulated signal envelope uniformity, the phase continuity as these parameters lead to the efficient spectral confinement of a binary signal which is a future and nowadays a major important aspect in the design of a wireless cellular communication system. In this paper, d...

Journal: :The Journal of bone and joint surgery. American volume 1994
D Pienkowski S R Pollack C T Brighton N J Griffith

The purpose of this study was to determine whether low-power-consuming symmetrical-waveform electromagnetic stimuli could increase the stiffness of fracture sites in a rabbit fibular-osteotomy model. Both active and placebo devices were used in a blinded study protocol. Dose-response studies of pulse amplitude and pulse width were performed by continuous application (twenty-four hours a day) of...

Journal: :Optics express 2010
Lan Ding Jinsong Liu Dong Wang Kejia Wang

We have provided theoretical study on the spectral and temporal properties of the scattering of pulsed plane wave from a symmetrical groove doublet configuration. Based on the numerical calculation results, we show that the spectrum and the waveform of the scattered field are sensitive to the shape of the rectangular grooves when the grooves are deep enough. In both spectral and temporal domain...

2012
Thomas Kaufmann John M. Franck Timothy J. Keller Ryan P. Barnes Steffen J. Glaser John M. Martinis Songi Han

We present an EPR spectrometer featuring an arbitrary waveform generator (AWG) operating at 8–10 GHz (X-band) that is based on a 1 GHz digital-to-analog converter (DAC) boardwith a 42 dB (i.e. 14-bit) dynamic range. This AWG-capable spectrometer was developedto widen the scope of pulsed electron paramagnetic resonance (EPR) and enable new experiments. It generates shaped X-band pulses with prec...

2015

Pulse shaping of a signal at base-band forms a more important tool in controlling and analyzing the parameters like ISI, the modulated signal envelope uniformity, the phase continuity as these parameters lead to the efficient spectral confinement of a binary signal which is a future and nowadays a major important aspect in the design of a wireless cellular communication system. In this paper, d...

2004
Xu Feng Xin Li Chuan Liu

The exact two-particle energy eigenstates in a generic asymmetric rectangular box with periodic boundary conditions in all three directions are studied. Their relation with the elastic scattering phases of the two particles in the continuum are obtained for both D4 and D2 symmetry. These results can be viewed as a generalization of the corresponding formulae in a cubic box obtained by Lüscher b...

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