Abstract: A method for guiding a remote visual inspection device along an inspection path defined by a pre-stored inspection path-defining image group, from a current position to a target position, includes capturing the live image feed from the remote visual inspection device from the current position during an inspection of an object; matching features of the live captured image to image features in the pre-stored inspection path-defining image group; identifying a key-frame image which is the next closest image in the path-defining image group corresponding to the target position; estimating a transform between the live captured image and next key-frame image, using a transformation estimation method; and generating guidance instructions, based on the transform, and outputting the guidance instructions to enable the device to be moved along the inspection path to the target position.

Abstract: There is described a fuel composition incorporating levulinic acid or a functional derivative thereof.

Abstract: There is described a fuel composition incorporating levulinic acid or a functional derivative thereof.

Abstract: There is described a fuel additive composition comprising an oleic alkanolamide and an alkoxylated oleic acid. There is also described a fuel composition comprising a hydrocarbon fuel and a fuel additive comprising an oleic alkanolamide and an alkoxylated oleic acid and also a method of running a combustion engine using the fuel if the invention.

Abstract: There is described a fuel composition incorporating levulinic acid or a functional derivative thereof.

Abstract: There is described a fuel composition which is substantially free of alkanolamides, containing at least 95 % by volume of a hydrocarbon-based fuel and from 0.1 to 5 % by volume of an additive selected from the groups consisting of: a) the optionally alkoxylated linear or branched saturated or unsaturated monoalcolhols having 8 to 24 C atoms, containing zero or 1 to 20 mol of ethylene oxide and/or 1 to 5 mol of propylene oxide per mol of alcohol, or b) the polyols having 2 to 6 carbon atoms, optionally partially esterified with fatty acids having 12 to 24 carbon atoms, or c) the alkoxylated fatty acids having 12 to 24 carbon atoms and 4 to 20 mol of ethylene oxide per mol of fatty acid, or d) the ethoxylated dimeric fatty acids.

Abstract: A damper for reducing the track nose emitted by a rail system comprises a deformable material attachable to a surface of the rail, incorporating a plurality of elongate discontinuous resonant members of a stiff material as compared to the deformable material, sized to contain at least two resonant frequencies in the range of interest. The resonant members are suitably of steel or other metallic material. They can be of different profile, to form a resonant system with at least two resonant frequencies in the relevant frequency range. They are suitably embedded in the deformable material, to ensure adequate vibrational transfer from the rail to the resonant members and also provide environmental protection. The deformable member is visco-elastic, for example rubber or rubber-like material. This may be preformed and glued to the rail, or it can be cured in place on the rail. The damper is positioned on the rail at the junction between the web and the foot of the rail.