Abstract: The present invention is directed toward fluorescent inks and markers comprising carbon nanotubes. The present invention is also directed toward methods of making such inks and markers and to methods of using such inks and markers, especially for security applications (e.g., anti-counterfeiting). Such inks and markers rely on the unique fluorescent properties of semiconducting carbon nanotubes.

Abstract: Methods and systems for processing uncalcined coke are provided. The methods and systems provide for combusting effluent gas from a refinery unit and a stream of uncalcined coke. The refinery unit effluent gas may be the offgas from a rotary kiln calciner. The refinery unit effluent gas and the uncalcined coke stream are combusted in an integrated gas/solids incinerator. Heat released during the combustion of these streams may be used to generate steam or electricity. The methods and systems disclosed provide low cost energy production at calciner effluent gas incinerator locations where uncalcined coke is available.

Abstract: An invalid carriage including a chair of pivotted construction with a connection between the back of the chair and a mast that is fixed to a chassis. There are means to raise the connection up the mast, so raising the chair seat from horizontal to forwardly-sloping so as to help raise a user of the chair from a sitting to a standing position, and to lower the connection so that the reverse occurs so as to help a standing person to sit down in the chair. As the mast connection moves, so collapsing or expanding the chair framework, wheels allow the feet of the front legs of the chair to move backwards and forwards over the chassis. In an alternative construction the feet of the front legs are anchored to the chassis, and the foot of the mast rolls backwards and forwards over the chassis as the mast connection moves.

Abstract: A peripatetic vehicle, the suspension of which includes a bogie carrying two main wheels, one to either side of the vehicle, and caster wheels. The stability of the suspension is completed by further casters, supported from the body of the vehicle. The use of the bogie improves the ride of the vehicle over rough ground, and the use of only two main wheels, the rest being casters, gives high maneuverability. The main wheels may be driven, e.g. by separate motors, and the vehicle steered by driving these wheels differentially. Stable steering is improved by locating the transverse axis of the main wheels closely beneath the center of mass of the loaded vehicle.