Abstract: A bistatic radar measurement system is provided having a radar source configured to produce a radio frequency signal. A transmitting antenna is configured to transmit the radio frequency signal toward a target. A receiving antenna is configured to receive a reflected radio frequency signal from the target. A support system is configured to support the receiving antenna. The support system includes a plurality of low scattering dielectric strings configured to orient the receiving antenna.

Abstract: A bistatic radar measurement system is provided having a radar source configured to produce a radio frequency signal. A transmitting antenna is configured to transmit the radio frequency signal toward a target. A receiving antenna is configured to receive a reflected radio frequency signal from the target. A support system is configured to support the receiving antenna. The support system includes a plurality of low scattering dielectric strings configured to orient the receiving antenna.

Abstract: Adhesive compositions comprising an aqueous based adhesive and one or more hydrophilic hydrocarbon surfactant(s) or fluorochemical surfactants and methods for bonding porous materials are described which are particularly suitable for bonding high density and/or high moisture content woods. Methods for bonding timber veneer and improving bond cure rates are also disclosed.

Abstract: A method for producing a relatively low viscosity tannin extract from bark and/or wood and suitable for use in formaldehyde-condensation adhesives comprises providing tannin extract obtained from bark and/or wood, separating from the tannin extract the high molecular weight material, subjecting the high molecular weight material to treatment with one or more sulphite compounds to reduce the molecular weight and recombining the sulphited material with the tannin extract. The tannin extract may be recovered by subjecting bark and/or wood to a first stage hot aqueous tannin extraction process, thereby obtaining a first stage tannin extract, subjecting the extracted bark and/or wood to a second stage hot aqueous extraction process at a higher pH than the first stage, thereby obtaining a second stage tannin extract, and optionally recombining the first and second stage tannin extracts.

Abstract: A wood adhesive composition including an effective amount of a phenol-formaldehyde resin; and a modifying agent which agent renders the composition capable of bonding to a hard wood.