Abstract: Method and control program for automatically configuring a communication network with a plurality of Virtual Local Area Networks (VLANs), wherein for each VLAN, starting from communication terminals on ports of switches and/or routers along paths assigned to the respective VLAN, a VLAN port operating mode is defined in each case, VLAN segment boundaries are defined via first VLAN port configuration tags, where second VLAN port configuration tags are used to set limits for tracing the paths assigned to the respective VLAN to define the VLAN port operating modes, third VLAN port configuration tags are used to set limits for tracing the paths assigned to the respective VLAN only with respect to outbound frames to define the VLAN port operating modes, and where the tracing of the paths assigned to the respective VLAN, and a configuration of the ports comprised by these paths are controlled using the VLAN port configuration tags.

Abstract: A binder material activating device to activate a binder material on a fibrous substrate, the binder material activating device including a heat exposing device to expose the fibrous substrate with the binder material to heat. The heat exposing device includes a non-focused light source to provide a non-focused light beam and an optics device to be arranged in between the fibrous substrate to be exposed to heat and the light source to focus the non-focused light beam onto the fibrous substrate. Further, a preforming device includes the binder material activating device.

Abstract: A device for the layer-wise additive production of a complex three-dimensional component has a measuring mechanism for continuously monitoring quality indicators during the production of the component, wherein the measuring mechanism and a bed with a material powder are surrounded, at least in regions, by a processing cell filled with a protective gas atmosphere and the material powder of an uppermost layer can be melted in a locally limited manner in a melting zone by means of at least one laser. The measuring mechanism has the at least one laser and at least one optical sensor for the priority detection of the quality indicators in the region of the melting zone, in particular by means of Raman spectroscopy. Consequently, any construction errors in the component can be recognised, evaluated and, if necessary, corrected in a resource-saving manner without delay.

Abstract: An engine assembly comprising an engine and a pod surrounding the engine that is equipped, upstream according to the direction of entry of air into the engine, with a fan provided with blades, the pod having an upstream air intake. The engine assembly also comprises a display unit including at least one light ring arranged in the air intake upstream of the fan, the light ring including at least one row of light-emitting diodes and being configured to emit at least one light beam and to project it on the blades of the fan.

Abstract: A device for the layer-wise additive production of a complex three-dimensional component has a measuring mechanism for continuously monitoring quality indicators during the production of the component, wherein the measuring mechanism and a bed with a material powder are surrounded, at least in regions, by a processing cell filled with a protective gas atmosphere and the material powder of an uppermost layer can be melted in a locally limited manner in a melting zone by means of at least one laser. The measuring mechanism has the at least one laser and at least one optical sensor for the priority detection of the quality indicators in the region of the melting zone, in particular by means of Raman spectroscopy. Consequently, any construction errors in the component can be recognised, evaluated and, if necessary, corrected in a resource-saving manner without delay.

Abstract: A binder material activating device to activate a binder material on a fibrous substrate, the binder material activating device including a heat exposing device to expose the fibrous substrate with the binder material to heat. The heat exposing device includes a non-focused light source to provide a non-focused light beam and an optics device to be arranged in between the fibrous substrate to be exposed to heat and the light source to focus the non-focused light beam onto the fibrous substrate. Further, a preforming device includes the binder material activating device.

Abstract: An engine assembly comprising an engine and a pod surrounding the engine that is equipped, upstream according to the direction of entry of air into the engine, with a fan provided with blades, the pod having an upstream air intake. The engine assembly also comprises a display unit including at least one light ring arranged in the air intake upstream of the fan, the light ring including at least one row of light-emitting diodes and being configured to emit at least one light beam and to project it on the blades of the fan.

Abstract: A cooling duct piston (1) for combustion engines. The cooling duct piston has a piston basic body (2) that is connected to a lining part (3), which is facing an assigned combustion chamber. Here, the lining part (3) completely forms the piston surface (4) of the cooling duct piston (1) that faces the combustion chamber. An encircling depression (5) is provided in the surface of the piston basic body (2) facing the combustion chamber. The lining part (3) provides a permanent connection at least with the surface of the piston basic body (2) facing the combustion chamber, and thus bridges the encircling depression (5), such that the encircling depression (5), with the lining part (3) that bridges it, forms a cooling duct (6).

Abstract: The invention relates to a method for light detecting and ranging (LIDAR) measurement of speeds, in which a laser beam is directed at the medium to be measured, and radiation which is subsequently emitted from the medium (16) is measured by a detector. In order to optimize the measurement, a spatial measurement range can be selected by activation and/or deactivation of the detector for at least one predetermined or regulated time duration of less than about 500 ?s after emission of a laser pulse to the medium to be measured. Furthermore, a direct reception Doppler LIDAR apparatus can be used to perform the method.

Abstract: A light emitting unit comprises at least one lighting means for emitting light (L) for heating a composite material, e.g. resin of a carbon fiber reinforced plastic, wherein the composite material can be fused and/or softened and/or cured, and/or be hold in a liquid state by the heating and wherein the emission of light (L) of the lighting means can be controlled differently in several areas. Furthermore, this relates to a method for producing a component made of the composite material as well as a method for producing the light emitting unit.

Abstract: A semifinished product blank, suitable for the production of a steel piston (1) for internal combustion engines having cylinder crankcases made of light metal alloys. Such a steel piston (1) has at least one upper piston part (4) which has a combustion recess (2) and an annular wall (3), and a lower piston part (4?) which has a piston skirt (5) and a connecting rod bearing (6). The semifinished product blank is made of an austenitic steel, that is stabilized with Ni, Mn and N and that has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1. Also disclosed is a steel piston, which at least has a piston skirt (5) made of an austenitic steel that is stabilzed with Ni, Mn, N. The piston skirt (5) has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1.

Abstract: The invention relates to a method for Doppler light detection and ranging (LIDAR) measurement of speeds. A laser beam is directed at the medium to be measured, and radiation which is then emitted by the medium is measured by a detector. In order to allow better control of the dynamic range of a direct reception Doppler LIDAR apparatus, a multiplicity of laser pulses can be transmitted per measurement, and a multiplicity of laser pulses can be received by the detector per measurement. A direct reception Doppler LIDAR apparatus can be suitable for carrying out the method.

Abstract: The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part (12) provided with a combustion cavity (11) and an annular wall (5), and a piston lower part (13) provided with a connecting rod bearing (8). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method.

Abstract: A cooling duct piston (1) for combustion engines. The cooling duct piston has a piston basic body (2) that is connected to a lining part (3), which is facing an assigned combustion chamber. Here, the lining part (3) completely forms the piston surface (4) of the cooling duct piston (1) that faces the combustion chamber. An encircling depression (5) is provided in the surface of the piston basic body (2) facing the combustion chamber. The lining part (3) provides a permanent connection at least with the surface of the piston basic body (2) facing the combustion chamber, and thus bridges the encircling depression (5), such that the encircling depression (5), with the lining part (3) that bridges it, forms a cooling duct (6).

Abstract: A semifinished product blank, suitable for the production of a steel piston (1) for internal combustion engines having cylinder crankcases made of light metal alloys. Such a steel piston (1) has at least one upper piston part (4) which has a combustion recess (2) and an annular wall (3), and a lower piston part (4?) which has a piston skirt (5) and a connecting rod bearing (6). The semifinished product blank is made of an austenitic steel, that is stabilized with Ni, Mn and N and that has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1. Also disclosed is a steel piston, which at least has a piston skirt (5) made of an austenitic steel that is stabilzed with Ni, Mn, N. The piston skirt (5) has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1.

Abstract: The invention relates to a method for Doppler light detection and ranging (LIDAR) measurement of speeds. A laser beam is directed at the medium to be measured, and radiation which is then emitted by the medium is measured by a detector. In order to allow better control of the dynamic range of a direct reception Doppler LIDAR apparatus, a multiplicity of laser pulses can be transmitted per measurement, and a multiplicity of laser pulses can be received by the detector per measurement. A direct reception Doppler LIDAR apparatus can be suitable for carrying out the method.

Abstract: The invention relates to a method for light detecting and ranging (LIDAR) measurement of speeds, in which a laser beam is directed at the medium to be measured, and radiation which is subsequently emitted from the medium (16) is measured by a detector. In order to optimize the measurement, a spatial measurement range can be selected by activation and/or deactivation of the detector for at least one predetermined or regulated time duration of less than about 500 ?s after emission of a laser pulse to the medium to be measured. Furthermore, a direct reception Doppler LIDAR apparatus can be used to perform the method.

Abstract: The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part (12) provided with a combustion cavity (11) and an annular wall (5), and a piston lower part (13) provided with a connecting rod bearing (8). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method.

Abstract: A system for the laser beam deflection for optical measuring systems includes an optical element for the deflection of an incident laser beam and a driving unit for generating a rotational movement between the optical element and the incident laser beam in order to deflect the laser beam in different successive directions. The optical element includes at least two segments for the deflection of the incident laser beam by one fixed deflection angle respectively. During the rotational movement, the laser beam successively impinges on the different segments. The optical element has a disk-shaped or ring-shaped design, and the segments are wedge-shaped with inclined surfaces. In the case of a method for the laser beam deflection, a laser beam impinging in an offset manner with respect to the axis of rotation is deflected during a time period by each segment into precisely one defined direction.

Abstract: A system for the laser beam deflection for optical measuring systems includes an optical element for the deflection of an incident laser beam and a driving unit for generating a rotational movement between the optical element and the incident laser beam in order to deflect the laser beam in different successive directions. The optical element includes at least two segments for the deflection of the incident laser beam by one fixed deflection angle respectively. During the rotational movement, the laser beam successively impinges on the different segments. The optical element has a disk-shaped or ring-shaped design, and the segments are wedge-shaped vith inclined surfaces. In the case of a method for the laser beam deflection, a laser beam impinging in an offset manner with respect to the axis of rotation is deflected during a time period by each segment into precisely one defined direction.