Abstract: The present invention relates to a method for detecting and warning against wrong-way drivers, the method comprising the following steps: a) establishing a radio field over a roadway section to be monitored and at least substantially transversely to a predetermined correct driving direction of the roadway section, the radio field having at least two radio field sections that are spaced apart when viewed in the driving direction and have associated reception field strengths; b) detecting attenuations of the reception field strengths of the radio field sections that occur due to radio shadowing during driving through the roadway section; c) determining the sequence of the radio field sections in which an attenuation of the respectively associated reception field strengths has been detected; d) comparing the determined attenuation sequence with the correct driving direction; and e) initiating at least one warning signal if the attenuation sequence runs opposite to the correct driving direction.

Abstract: The method separates emulsions derived from whole-cell biotransformations, including stable emulsions derived from typical biocatalytic two-phase processes that result with such a biotransformation. A supercritical extraction to obtain the valuable product can follow directly, because of the use of compressed or supercritical gas as the separation agent. It is unimportant whether the valuable product is present in the aqueous or the organic phase. Recycling of the organic phase is possible, since the surfactant cell components decisively responsible for the formation of the stable emulsion can be separated off via sedimentation, because of the treatment. The achieved separation remains in existence even after the gas has gassed out, so that aside from extraction, other methods for product isolation can also follow, if necessary.

Abstract: A membrane, especially for application in a sensor, which membrane includes a biocidal effect. The membrane comprises one or more components of the group consisting of: silver nano particles encapsulated in amphiphilic, core, shell structures, antimicrobial silanes, polymers with an antimicrobial end group, polyquads with modified end groups, and biocidally acting block copolymers. The membrane is resistant against aggressive agents, for example, corrosive or oxidizing cleaning agents, in the case of sterilizing, in the case of autoclaving, in the case of thermal loading and/or in the case of mechanical loading.

Abstract: The invention relates to a method for producing a mixture of substances comprising a higher tertiary butyl ether of glycerol, comprising the steps: acid-catalyzed reaction of isobutene with glycerol to form a reaction mixture, and extraction of at least part of the reaction mixture from step a by means of at least one solvent, wherein the solvent or the mixture of solvents comprises an ET(30) value of=35.0.

Abstract: The invention relates to a method for transmitting optical information between an emitter station (7) and a receiving station (6) via a multi-mode optical wave guide (3) using a wave length multiplex method.