  Using computer simulations, we have studied the percolation and the
electrical conductance of two-dimensional, random percolating networks of
curved, zero-width metallic nanowires. We mimicked the curved nanowires using
circular arcs. The percolation threshold decreased as the aspect ratio of the
arcs increased. Comparison with published data on the percolation threshold of
symmetric quadratic B\'{e}zier curves suggests that, when the percolation of
slightly curved wires is simulated, the particular choice of curve to mimic the
shape of real-world wires is of little importance. Considering the electrical
properties, we took into account both the nanowire resistance per unit length
and the junction (nanowire/nanowire contact) resistance. Using a mean-field
approximation (MFA), we derived the total electrical conductance of the
nanowire-based networks as a function of their geometrical and physical
parameters. The MFA predictions have been confirmed by our Monte Carlo
numerical simulations. For our random homogeneous and isotropic systems of
conductive curved wires, the electric conductance decreased as the wire shape
changed from a stick to a ring when the wire length remained fixed.
