Oil contents, physicochemical properties, fatty acid composition and energy values of seed samples of four species of Jatropha (J. curcas, J. glandulifera, J. gossypifolia and J. multifida) were determined. The energy value of J. multifida oil was found to be the highest (13·647 kcal g−1). All the oil samples were rich in oleic and linoleic acids (72·2–84·0%). However, no correlation between the Cheap Nike Free Running Shoes Uk
energy values and fatty acid composition could be obtained.
Using a perturbation theory focused on injected electron concentrations, we derived analytical models for collector current density, Jn, and base transit time, τB, for arbitrarily doped bases. These models are valid in all injection regions before the onset of the Kirk effect, include existing models as special cases, and agree well with numerical results. Our model predicts that τB for the Gaussian-doped base is still Nike Free 3.0 V5
smaller than that of a base with a uniform profile, a box-doped base, even in high-injection regions.
Multidimensional propagation of a light pulse or beam in a nonlinear sample of a Kerr type is described within the first-order optics formalism. A scale transformation that relates the nonlinear and linear propagation processes is defined by use of the nonlinear aberrationless effects. The nonlinear ray transfer matrix and Wigner distribution function are explicitly given in a factored form for the propagation of a symmetric Gaussian optical signal. An on-axis phase correction to the nonlinear first-order formalism is also specified.