Abstract: A method of steam cracking using a steam cracking arrangement including an electric cracking furnace without a convection zone and a quench cooling train is proposed, wherein a process gas stream is passed through the cracking furnace and the cooling train. The cooling train is operated to comprise at least two distinct cooling steps arranged in either order, wherein in a first cooling step at least a part of the process gas stream withdrawn from the electric cracking furnace is cooled against vaporizing boiler feed water at an absolute pressure level between 30 and 175 bar and wherein in a second cooling step at least a part of the process gas stream withdrawn from the electric cracking furnace is cooled against a superheated mixture of feed hydrocarbons and process steam used in forming the process gas stream which is thereby heated to a temperature level between 350 and 750° C.

Abstract: Described herein is a detector for determining a position of at least one object. The detector includes at least one sensor element having a matrix of optical sensors, the optical sensors each having a light-sensitive area, wherein the sensor element is configured to determine a reflection image of the object. The detector also includes an evaluation device configured to select a reflection feature of the reflection image, and determine a distance estimate of the selected reflection feature of the reflection image by optimizing at least one blurring function fa, wherein the distance estimate is given by a longitudinal coordinate z and an error interval±?. The evaluation device is adapted to determine at least one displacement region in at least one reference image corresponding to the distance estimate, and to match the selected reflection feature with at least one reference feature within the displacement region.

Abstract: Described herein is a detector for identifying at least one material property m. The detector includes at least one sensor element including a matrix of optical sensors, the optical sensors each having a light-sensitive area. The sensor element is configured for recording at least one reflection image of a light beam originating from at least one object. The detector includes at least one evaluation device configured for determining the material property by evaluation of at least one beam profile of the reflection image.

Abstract: Described herein is a detector for determining a position of at least one object. The detector includes: at least one transfer device; at least one illumination source adapted to generate at least one light beam for illuminating the object; at least one first optical receiving fiber and at least one second optical receiving fiber; at least two optical sensors; and at least one evaluation device being configured for determining at least one longitudinal coordinate z of the object by evaluating a combined signal Q from the sensor signals.

Abstract: Described herein is an illumination source adapted to generate a regular pattern integrated into a portable device, the illumination source including an array of light emitting diodes or laser light sources and a diffractive optical element. Also described herein is a detector including the illumination source, an array of optical sensors, where each optical sensor is configured to generate a sensor signal in response to an illumination of its respective light-sensitive area, and an evaluation device adapted to evaluate the sensor signal.

Abstract: Described herein is a mobile device with an optical detector including: at least one illumination source adapted to generate at least one illumination pattern for illuminating an object, where the illumination pattern includes a regular and/or constant and/or periodic pattern; at least one sensor element having a matrix of optical sensors, the optical sensors each having a light-sensitive area, where each optical sensor is configured to generate at least one sensor signal in response to an illumination of the light-sensitive area by at least one light beam propagating from the object to the detector; and at least one evaluation device adapted to determine at least one region of interest.

Abstract: Described herein is a detector for determining a position of an object. The detector includes a sensor element having a matrix of optical sensors, wherein the sensor element is configured to determine a reflection image. The detector also includes an evaluation device configured to select a reflection feature of the reflection image at a first image position in the reflection image, determine a longitudinal coordinate z of the selected reflection feature by optimizing a blurring function fa, and determine a reference feature in a reference image at a second image position in the reference image corresponding to the reflection feature. The reference image and the reflection image are determined at two different spatial configurations, wherein the spatial configurations differ by a relative spatial constellation, wherein the evaluation device is configured to determine the relative spatial constellation from the longitudinal coordinate z and the first and the second image positions.

Abstract: In a unilateral NMR probe for the analysis of a material comprising at least one magnet for generating a constant time-invariant polarization field B0 in the material to be analyzed and current conductors forming a radio frequency oscillation circuit for generating a pulsed radio frequency magnetic excitation field B1 which is superimposed on the polarization field N0 in the material, the circuit conductors are so designed as to provide several adjacent excitation fields B0 with alternatingly oppositely oriented magnetic fields, whereby the current conductors generating each one of the excitation fields have a distance from each other which causes a certain penetration depth in the material to be analyzed and echoes received therefrom provide measurement values which are characteristic for the material being analyzed.

Abstract: The invention relates to a plaster containing an active agent, comprising at least one cover membrane and an active membrane which is based on a skin-compatible matrix containing a molecular sieve which is loaded with at least one active agent. The molecular sieve/active agent adduct releases the active agent when the active membrane comes into contact with the skin, in conjunction with the transpired water of the skin. The inventive plaster is characterised in that the molecular sieve/active agent adduct also contains water of crystallisation, to the extent that the molecular sieve is partially hydrated compared to a sufficient basic molar quantity (m) of water of crystallisation, the molecular sieve with the reduced molar quantity (m?) of water of crystallisation being loaded with the active agent (Z, Z1, Z2) so that when the active membrane comes into contact with the skin, water is absorbed and the active agent is desorbed, whereupon the water of crystallisation content of the molecular sieve increases.

Abstract: A medical cushion (1), in particular an anti-decubitus cushion, is in particular multicellular and is distinguished in that the cushion is equipped, at least in the area where skin contact (6) occurs, with an active membrane (3) based on a skin-compatible matrix (4) into which a molecular sieve is mixed. This molecular sieve is charged with at least one active substance (Z, Z1, Z2), and the molecular sieve/active substance adduct (5) releases the active substance when the active membrane comes into skin contact (6) in conjunction with the transpiration of the skin.

Abstract: In a unilateral NMR probe for the analysis of a material comprising at least one magnet for generating a constant time-invariant polarization field B0 in the material to be analyzed and current conductors forming a radio frequency oscillation circuit for generating a pulsed radio frequency magnetic excitation field B1 which is superimposed on the polarization field N0 in the material, the circuit conductors are so designed as to provide several adjacent excitation fields B0 with alternatingly oppositely oriented magnetic fields, whereby the current conductors generating each one of the excitation fields have a distance from each other which causes a certain penetration depth in the material to be analyzed and echoes received therefrom provide measurement values which are characteristic for the material being analyzed.

Abstract: The invention relates to a fuel cell (1) comprising at least the following components: a proton-conducting membrane (2) serving as an electrolyte; catalyst layers (3), which cover the membrane (2) on both sides; gas-permeable electrodes provided in the form of an anode (4) and a cathode (5), which rest against the outwardly pointing surface of the catalyst layers (3), and; electrically conductive plates (6), which contact the electrodes in an electrically conductive manner whereby being located close to one another and which, together with the electrodes, delimit gas-conducting channels. The fuel cell also comprises gas connections for supplying hydrogen (H2) on one side and oxygen (O2) on the other. The inventive fuel cell (1) is characterized in that the membrane (2) has a matrix into which a proton-conducting organic-based polymer substance is incorporated.

Abstract: The invention relates to a medical cushion (1), in particular an anti-decubitus cushion, which is in particular multicellular and is distinguished in that the cushion is equipped, at least in the area where skin contact (6) occurs, with an active membrane (3) based on a skin-compatible matrix (4) into which a molecular sieve is mixed, said molecular sieve being charged with at least one active substance (Z, Z1, Z2), and the molecular sieve/active substance adduct (5) releases the active substance when the active membrane comes into skin contact (6) in conjunction with the transpiration of the skin.

Abstract: The invention relates to a plaster containing an active agent (1), comprising at least one cover membrane (2) and an active membrane (3) which is based on a skin-compatible matrix (4) containing a molecular sieve which is loaded with at least one active agent (Z, Z1, Z2). The molecular sieve/active agent adduct (5) releases the active agent when the active membrane comes into contact with the skin (6), in conjunction with the transpired water of the skin.

Abstract: The invention relates to a fuel cell (1), comprising at least the following components: a proton-conducting polymer membrane (2) as the electrolyte; catalyst layers (3) covering the polymer membrane (2) on both sides; gas-permeable electrodes in the form of an anode (4) and a cathode (5), which lie adjacent to the surface of the catalyst layers (3) that faces outwards; electroconductive plates (6), which come into electroconductive contact with the electrodes in at short distances and which together with the electrodes, delimit channels carrying gas; and gas connections for supplying hydrogen (H2) and for supplying oxygen (O2). The inventive fuel cell (1) is characterized in that the polymer membrane (2) is a mixture based on a polymer blend containing at least one first polymer group A which is based on a halogenated and/or sulphonated polyalkene, and one second polymer group B which is based on a vulcanized rubber with a polar character.

Abstract: The invention relates to a rail arrangement for a rail superstucture such as a fixed railroad, comprising an elastic intermediate plate (3) which is located between the rail foot and a hard support (6) in the form of a concrete tie and has two through holes for the screws (7) to fasten the rails. For series mounting, which is the solution of choice, the elastic intermediate plate (3) is combined with an elastic intermediate layer (1) in such a way that the additional intermediate layer rests above the intermediate plate directly below the rail foot, whereby the intermediate layer (1) is separated from the intermediate plate (3) by a metal base plate (2) which serves to fasten the rail.

Abstract: In an apparatus for examining flat goods of polymeric material having reinforcement structures embedded therein, a number of NMR-MOUSE probes are provided on a measuring surface of an examining body for nuclear magnetic resonance imaging analysis of the flat goods.

Abstract: In an apparatus for examining flat goods of polymeric material having reinforcement structures embedded therein, a number of NMR-MOUSE probes are provided on a measuring surface of an examining body for nuclear magnetic resonance imaging analysis of the flat goods.