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.
George WeigelOregano is an herb that can withstand Pennsylvania winters. A: It depends on which one. Some herbs are winter-hardy in our climate and can be left outside all winter while others are tender and will die at frost.Basil, coriander, dill, borage, chamomile, chervil, marjoram, summer savory and stevia are examples of herbs that die in a freeze.osemary and parsley are kind of in between. Some rosemary varieties are cold-hardier than others (âArpâ and âHardy Hillâ are two usually considered to be the most cold-tolerant), but in a typical winter, rosemaries generally donât make it here.