Figure 1 – Color Scale ruler (mV unit)

Figure 2 – Ventricolar Fibrillation after Defibrillation

Simulation Parameters Model NNR Cell Grid 400 x 400 Number of Stimuli 2 Distance between two neighboring cells 0.01 cm The membrane capacitance of the cell 1 uF cm-1 The diffusion coefficent for the simulation 0.003 cm2 sec-1 The starting time of the simulation 0 msec. The finish time of the simulation 1000 msec. The size of the simulation time-step 0.001 msec The number of iterations (time steps) between each voltage dump to the main output file. 1000

Stimuli applied Start time End time Bounding Box Strength 0 msec. 1 msec. up=310, low=395, left=5,right=15 -800 uA/cm2 145 msec. 146 msec. up=235, low=245, left=0, right=150 -1000 uA/cm2 400 msec. 401 msec. up=4, low=394, left=4, right=394 -800 uA/cm2

400 2 0.01 1 0.003 0 2000 0.001 1000
0 1 310 395 5 15 -800
145 146 235 245 0 150 -1000
400 401 4 394 4 394 -800

]]> http://stonybeat.wordpress.com/2007/03/14/defibrillation/feed/ 0 eziobartocci ruler6.jpg http://stonybeat.wordpress.com/2006/12/03/new-diffusion-model/ http://stonybeat.wordpress.com/2006/12/03/new-diffusion-model/#comments Sun, 03 Dec 2006 12:15:57 +0000 eziobartocci http://stonybeat.wordpress.com/2006/12/03/new-diffusion-model/ ]]>

Figure 1 – Color Scale ruler (mV unit)

Figure 2 – Ventricolar Fibrillation with new Diffusion Model

Simulation Parameters Model NNR Cell Grid 400 x 400 Number of Stimuli 2 Distance between two neighboring cells 0.01 cm The membrane capacitance of the cell 1 uF cm-1 The diffusion coefficent for the simulation 0.003 cm2 sec-1 The starting time of the simulation 0 msec. The finish time of the simulation 1000 msec. The size of the simulation time-step 0.001 msec The number of iterations (time steps) between each voltage dump to the main output file. 1000

Stimuli applied Start time End time Bounding Box Strength 0 msec. 1 msec. up=310, low=395, left=5,right=15 -800 uA/cm2 145 msec. 146 msec. up=235, low=245, left=0, right=150 -1000 uA/cm2

400 2 0.01 1 0.003 0 2000 0.001 1000
0 1 310 395 5 15 -800
145 146 235 245 0 150 -1000


Figure 3 – Color Scale ruler (mV unit)

Figure 4 – Ventricular Fibrillation with old diffusion model

Figure 5 – Voltage in Cell 200, 200

Simulation Parameters Model NNR Cell Grid 400 x 400 Number of Stimuli 2 Distance between two neighboring cells 0.01 cm The membrane capacitance of the cell 1 uF cm-1 The diffusion coefficent for the simulation 0.07 cm2 sec-1 The starting time of the simulation 0 msec. The finish time of the simulation 1350 msec. The size of the simulation time-step 0.001 msec The number of iterations (time steps) between each voltage dump to the main output file. 1000

Stimuli applied Start time End time Bounding Box Strength 0 msec. 1 msec. up=310, low=395, left=5,right=15 -800 uA/cm2 145 msec. 146 msec. up=235, low=245, left=0, right=150 -1000 uA/cm2

400 2 0.01 0.001 0.07 0 2000 0.001 1000
0 1 310 395 5 15 -800
145 146 235 245 0 150 -1000

]]> http://stonybeat.wordpress.com/2006/12/03/new-diffusion-model/feed/ 0 eziobartocci ruler6.jpg ruler6.jpg pippo.png http://stonybeat.wordpress.com/2006/10/22/color-scale-improved/ http://stonybeat.wordpress.com/2006/10/22/color-scale-improved/#comments Sun, 22 Oct 2006 04:40:28 +0000 eziobartocci http://stonybeat.wordpress.com/2006/10/22/color-scale-improved/ ]]>

Figure 1 – Color Scale ruler (mV unit)

Figure 2 – Simulation Example with Event Driven Simulator

Figure 3 – Voltage in Cell 200, 200

Simulation Parameters Model NNR Cell Grid 400 x 400 Number of Stimuli 2 Distance between two neighboring cells 0.01 cm The membrane capacitance of the cell 1 uF cm-1 The diffusion coefficent for the simulation 0.07 cm2 sec-1 The starting time of the simulation 0 msec. The finish time of the simulation 1350 msec. The size of the simulation time-step 0.001 msec The number of iterations (time steps) between each voltage dump to the main output file. 1000

Stimuli applied Start time End time Bounding Box Strength 0 msec. 1 msec. up=310, low=395, left=5,right=15 -0.8 mA/cm2 145 msec. 146 msec. up=235, low=245, left=0, right=150 -1.0 mA/cm2

400 2 0.01 0.001 0.00007 0 2000 0.001 1000
0 1 310 395 5 15 -0.8
145 146 235 245 0 150 -1.0

]]> http://stonybeat.wordpress.com/2006/10/22/color-scale-improved/feed/ 0 eziobartocci Color Scale ruler pippo.png http://stonybeat.wordpress.com/2006/09/27/critical-point-less-than-000000001-amps-in-the-stimulus-strength/ http://stonybeat.wordpress.com/2006/09/27/critical-point-less-than-000000001-amps-in-the-stimulus-strength/#comments Wed, 27 Sep 2006 12:13:24 +0000 eziobartocci http://stonybeat.wordpress.com/2006/09/27/critical-point-less-than-000000001-amps-in-the-stimulus-strength/ ]]>

Simulation Parameters

Model NNR Cell Grid 400 x 400 Number of Stimuli 2 Distance between two neighboring cells 0.2 The membrane capacitance of the cell 1 The diffusion coefficent for the simulation 0.4 The starting time of the simulation 0 msec. The finish time of the simulation 40 msec. The size of the simulation time-step 0.001 The number of iterations (time steps) between each voltage dump to the main output file. 1000

Stimuli in the first experiment (Click here for further details)

Start time End time Bounding Box Strength 0 msec. 1 msec. up=175, low=180, left=0, right=1 -0.37139834 amps 0 msec. 1 msec. up=190, low=200, left=0, right=1 -0.37139834 amps 0 msec. 1 msec. up=210, low=215, left=0, right=1 -0.37139834 amps

Stimuli in the second esperiment (Click here for further details)

Start time End time Bounding Box Strength 0 msec. 1 msec. up=175, low=180, left=0, right=1 -0.37139835 amps 0 msec. 1 msec. up=190, low=200, left=0, right=1 -0.37139835 amps 0 msec. 1 msec. up=210, low=215, left=0, right=1 -0.37139835 amps

Figure 1 – Result of first experiment with Event Driven Simulator

Figure 2 – Result of second experiment with Event Driven Simulator

Input first experiment

400 3 0.2 1 0.4 0 40 0.001 1000
0 1 175 180 0 1 -0.37139834
0 1 190 200 0 1 -0.37139834
0 1 210 215 0 1 -0.37139834


Input second experiment
400 3 0.2 1 0.4 0 40 0.001 1000
0 1 175 180 0 1 -0.37139835
0 1 190 200 0 1 -0.37139835
0 1 210 215 0 1 -0.37139835


Figure 1 – Time Step Simulator

Figure 2 – Event Driven Simulator


100 2 0.2 1 0.4 0 40 0.001 1000
0 1 20 25 30 30 -0.03
5 6 49 50 49 50 -0.03

Figure 1 – Time Step Simulator

Figure 2 – Event Driven Simulator


100 2 0.2 1 0.4 0 40 0.001 1000
0 1 20 25 30 30 -0.03
1 2 49 50 49 50 -0.03

Figure 1 – Time Step Simulator

Figure 2 – Event Driven Simulator


100 2 0.2 1 0.4 0 40 0.001 1000
0 1 20 25 30 30 -0.03
1 2 49 50 49 50 -0.03