Abstract: A process and a device for cleaning waste gas from pulp production, especially for cleaning waste gases from a bleaching reactor. Aerosols contained in the waste gas are removed and the gaseous impurities are scrubbed out of the waste gas by a scrubbing liquid.

Abstract: The invention relates to a method and device for the treatment of waste gas from a cellulose production, in particular, for treatment of the waste gases from a bleaching reactor (1), whereby aerosols in the waste gases are removed (4) and gaseous contaminants are scrubbed from the waste gas by means of a scrubbing fluid.

Abstract: The invention relates to a Wheatstone bridge containing bridge elements that are connected in a conventional manner and consisting of a spin-valve system, in addition to a method for producing the same. The aim of the invention is to produce a Wheatstone bridge, in which respective half-bridges lying adjacent to one another have a respective non-parallel bias magnetisation direction. To achieve this, the respective bridge elements that are not adjacent (1, 3 or 2, 4) are provided with a doping of implantable ions in quantities of between 1.1012 and 5.1016 atoms/cm2 beneath the pinned ferromagnetic layer of a GMR- or TMR-spin-valve layer system.

Abstract: The invention relates to a Wheatstone bridge containing bridge elements that are connected in a conventional manner and consisting of a spin-valve system, in addition to a method for producing the same. The aim of the invention is to produce a Wheatstone bridge, in which respective half-bridges lying adjacent to one another have a respective non-parallel bias magnetisation direction. To achieve this, the respective bridge elements that are not adjacent (1, 3 or 2, 4) are provided with a doping of implantable ions in quantities of between 1.1012 and 5.1016 atoms/cm2 beneath the pinned ferromagnetic layer of a GMR- or TMR-spin-valve layer system.

Abstract: The present invention relates to an improved process for preparing L-phenylephrine hydrochloride 3 on an industrial scale by asymmetric hydrogenation as the key step and a special sequence of subsequent steps, using [Rh(COD)Cl]2 as catalyst and a chiral, two-pronged phosphine ligand such as (2R,4R)-4-(dicyclohexylphosphino)-2-(diphenylphosphino-methyl)-N-methyl-aminocarbonyl-pyrrolidine as the catalyst system.

Abstract: The wear upon at least one of several carbon brushes in a brush holder is monitored by a lever one arm of which is biased against the rear end face of a selected brush by a spring and another arm of which actuates a microswitch in response to a predetermined amount of wear upon the brush as a result of engagement with a commutator or a slip ring, namely in response to a predetermined angular displacement of the lever from a starting position which is assumed by the lever when its first arm engages a freshly inserted brush.

Abstract: A brush holder assembly for use in an electric motor or generator has an insulating ring one side of which carries a set of several equidistant carriers for brushes which are biased in the radial direction of the ring to bear against a slip ring or against a commutator. Each carrier is radially adjustably secured to the ring by two screws or bolts and nuts whose shanks extend through two elongated slots provided in a flange-like extension of the carrier. Each extension has a tongue extending into a radial groove in the one side of the ring. The axial position of each carrier relative to the ring can be changed by inserting one or more shims between the extension and the ring.

Abstract: A cellular, volume compressible, strand-like rubber body has a sheathing of lastic material which surrounds the body without being fixedly connected to it. The rubber body may be of foam rubber material.