Abstract: A method for operating a fuel-operated burner (3) downstream of an engine (1) and upstream of a catalytic converter (4), comprising an actuation of an ignition apparatus (12) of the burner (3) during a pre-definable preheating phase, without delivering fuel (11) to the burner (3) during the preheating phase, and, after the end of the preheating phase, a timely delivery of fuel (11) to the burner (3) and combustion of the delivered fuel (11) in the burner (3). Further, a computing unit and a computer program product for carrying out such a method are proposed.

Abstract: The present invention relates to a heat-sensitive recording material comprising a carrier substrate, which is black or coloured on at least one side, and a thermoresponsive layer on the at least one black or coloured side of the carrier substrate, wherein the thermoresponsive layer comprises nanoparticles of at least one cellulose ester, and to a method for producing this material, and to a heat-sensitive recording material that can be obtained by this method.

Abstract: An arrangement for connecting a rotatable shaft having an end portion with channel toothing formed thereon, and a structural component for transmitting a torque therebetween, with the arrangement including a sleeve fixedly secured to the structured component and having inner channel toothing cooperating with the channel toothing formed on the end portion of the shaft, and a bushing enveloping the sleeve and axially displaceable therealong for providing a backlash-free engagement between the channel toothings of the end portion of the shaft and the receiving sleeve.