Numerical Simulation for Experiment

Wave-shaped gels with varying curvature were obtained by switching the polarity of a spatially uniform electric field. The period for reversing the polarity was explored through numerical simulation. The polarity of one of the electrodes was either anodic (0) or cathodic (1). A control sequence is described with a time interval and its sequence. A time interval of 10 second was initially selected and its sequence of eight intervals were enumerated from (00000000) to (11111111). Other intervals were also considered every 10 seconds from 20 to 120 seconds. 

We determined (00001111) with 120 seconds time interval as the best input sequence, which generated three-half-waved shape with large curvature. 

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M. Bak, R. Schultz and N. C. Nielsen, Numerical Simulations for Experiment Design and Extraction of Structural Parameters in Biological Solid-State NMR Spectroscopy. The Future of Solid-State NMR in Biology, Kluwer, Dordrecht, 2001. 

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