Disclosed is a wood composite material comprising: upper and lower surface layers and a core layer; wherein the core layer contains at least about 85 wt % paulownia strands; and the surface layers contain at least about 85 wt % of other, higher density, non-paulownia wood strands. The insert is hat-shaped and crimped within the body. Serial in-line mixers deposit sources of calcium and acid separately into a flow of the juice. A CA code continuous tracking GPS receiver is used to produce GPS positioning fixes and real-time L1 carrier phase measurements. Specifically, various methods for the production of highly-pure bisphenol-A are disclosed in which an attached promoter ion exchange resin catalyst system is combined with a solvent crystallization step. The interposer possesses a hemi-toroidal configuration in transverse cross-section and is constituted of a dielectric elastomeric material.