In the analytical expression of the PEMFC polarization curve, Eq. (16) , the independent variables are the current density, the temperature and the pressure, while the dependent variable is the voltage. Moreover there are a few constants, that usually are called parameters, and some of these are often unknown.
In particularly cold areas, Trachelospermum jasminoides is best grown in patio containers of loam based compost, such as John Innes No.2, that can be moved to a protected position over winter. Provide the twining stems with an appropriate support such as trellis, wires or a free standing climbing frame.row star jasmine plants in frost-free conditions until large enough to plant outdoors. When they are well grown, plant Trachelospermum jasminoides in fertile, well drained soil in sun or semi-shade. Choose a sheltered position that is protected from cold winter winds.
CLEYERA 'LEANN' - Ternstroemia gymnanthera 'Contherann' PP11737. This evergreen shrub is a great substitute for disease prone Red Tipped Photinia. Slower growing this shrub has beautiful maroon leaves in Spring that change to green for summer and back to maroon in fall and winter. Best grown in full sun or part shade in well drained acidic soil does not tolerate wet soil.