Location: Models for the OpenCOR and PMR tutorial by Peter Hunter @ c702d05c6a69 / HH.cellml

Author:
David Nickerson <nickerso@users.sourceforge.net>
Date:
2016-08-31 10:38:56+12:00
Desc:
update HH IK SED-ML to match changes in OpenCOR.
Permanent Source URI:
http://models.cellml.org/workspace/25d/rawfile/c702d05c6a698b7b97dbb5b106600a16abfbff97/HH.cellml

<?xml version='1.0'?>
<model name="HH" xmlns="http://www.cellml.org/cellml/1.1#" xmlns:cellml="http://www.cellml.org/cellml/1.1#" xmlns:xlink="http://www.w3.org/1999/xlink">
    <import xlink:href="sodium_ion_channel.cellml">
        <component component_ref="sodium_channel" name="Na_channel"/>
    </import>
    <import xlink:href="potassium_ion_channel.cellml">
        <component component_ref="potassium_channel" name="K_channel"/>
    </import>
    <import xlink:href="leakage_ion_channel.cellml">
        <component component_ref="leakage_channel" name="L_channel"/>
    </import>
    <units name="millisec">
        <unit prefix="milli" units="second"/>
    </units>
    <units name="millivolt">
        <unit prefix="milli" units="volt"/>
    </units>
    <units name="microA_per_cm2">
        <unit prefix="micro" units="ampere"/>
        <unit exponent="-2" prefix="centi" units="metre"/>
    </units>
    <units name="microF_per_cm2">
        <unit prefix="micro" units="farad"/>
        <unit exponent="-2" prefix="centi" units="metre"/>
    </units>
    <component name="environment">
        <variable initial_value="-85.0" name="V" public_interface="out" units="millivolt"/>
        <variable name="t" public_interface="out" units="millisec"/>
    </component>
    <group>
        <relationship_ref relationship="encapsulation"/>
        <component_ref component="membrane">
            <component_ref component="Na_channel"/>
            <component_ref component="K_channel"/>
            <component_ref component="L_channel"/>
        </component_ref>
    </group>
    <connection>
        <map_components component_1="environment" component_2="membrane"/>
        <map_variables variable_1="V" variable_2="V"/>
        <map_variables variable_1="t" variable_2="t"/>
    </connection>
    <connection>
        <map_components component_1="membrane" component_2="Na_channel"/>
        <map_variables variable_1="V" variable_2="V"/>
        <map_variables variable_1="t" variable_2="t"/>
        <map_variables variable_1="i_Na" variable_2="i_Na"/>
    </connection>
    <connection>
        <map_components component_1="membrane" component_2="K_channel"/>
        <map_variables variable_1="V" variable_2="V"/>
        <map_variables variable_1="t" variable_2="t"/>
        <map_variables variable_1="i_K" variable_2="i_K"/>
    </connection>
    <connection>
        <map_components component_1="membrane" component_2="L_channel"/>
        <map_variables variable_1="V" variable_2="V"/>
        <map_variables variable_1="i_L" variable_2="i_L"/>
    </connection>
    <component name="membrane">
        <variable name="V" private_interface="out" public_interface="in" units="millivolt"/>
        <variable name="t" private_interface="out" public_interface="in" units="millisec"/>
        <variable name="i_Na" private_interface="in" public_interface="out" units="microA_per_cm2"/>
        <variable name="i_K" private_interface="in" public_interface="out" units="microA_per_cm2"/>
        <variable name="i_L" private_interface="in" public_interface="out" units="microA_per_cm2"/>
        <variable initial_value="1" name="Cm" units="microF_per_cm2"/>
        <variable name="i_Stim" units="microA_per_cm2"/>
        <variable name="i_Tot" units="microA_per_cm2"/>
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>i_Stim</ci>
                <piecewise>
                    <piece>
                        <cn cellml:units="microA_per_cm2">200</cn>
                        <apply>
                            <and/>
                            <apply>
                                <geq/>
                                <ci>t</ci>
                                <cn cellml:units="millisec">1</cn>
                            </apply>
                            <apply>
                                <leq/>
                                <ci>t</ci>
                                <cn cellml:units="millisec">1.2</cn>
                            </apply>
                        </apply>
                    </piece>
                    <otherwise>
                        <cn cellml:units="microA_per_cm2">0</cn>
                    </otherwise>
                </piecewise>
            </apply>
            <apply>
                <eq/>
                <ci>i_Tot</ci>
                <apply>
                    <plus/>
                    <ci>i_Stim</ci>
                    <ci>i_Na</ci>
                    <ci>i_K</ci>
                    <ci>i_L</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>V</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>i_Tot</ci>
                    </apply>
                    <ci>Cm</ci>
                </apply>
            </apply>
        </math>
    </component>
</model>