Abstract: A steering column for a motor vehicle may include a crash device that has at least two components that have mutually facing surfaces. The at least two components may be connected to each other by means of a shear element that is arranged in an opening passing at least partially through the components such that the shear element is broken in two if the components move relative to each other. To improve the predetermined breaking connection, the opening may have, in at least one edge region bounding one of the mutually facing surfaces, a widened portion that extends at least over a partial circumferential region and is open towards the respective other surface.

Abstract: A steering column may include an actuating unit in which a steering shaft is mounted rotatably, a holding unit that is connectable to a body of a motor vehicle and that adjustably supports the actuating unit, a locking element that is coupled movably to the holding unit for axial locking of the actuating unit, a spring element that exerts a prestressing force on the locking element, a securing element for fixing the spring element, and a counterbearing. The locking element, the securing element, and the counterbearing may form a three-point arrangement in which the spring element is fixed. The spring element may be supported on one side on the locking element and on the other side on the counterbearing. The securing element may be arranged between the locking element and the counterbearing and may prestress the spring element.

Abstract: A two-component system for forming adhesive bonds or for chemical anchoring comprises a curable binder component A and an activator component B. The component A comprises: A-1) an inhibited hydraulic binder selected from among calcium aluminate cement, calcium sulfoaluminate cement and mixtures thereof; the component B comprises: B-1) a curing activator. At least one of the components A and/or B comprises: V-1) an organic binder; and V-2) a filler having a Mohs hardness of at least 5. The system is an aqueous system which is unproblematical from a health point of view. It is easy to process and quickly attains high strengths.

Abstract: A steering shaft may include a hollow shaft in which an inner shaft is arranged telescopically coaxially in an axial direction. A rolling body may be held in a form fit manner in a circumferential direction and configured to roll in the axial direction in a rolling body holding element of a rolling body cage disposed between the inner and hollow shafts, which is arranged in the axial direction between radially projecting stop elements of the hollow shaft and of the inner shaft. The rolling body cage may have end-face axial support surfaces that are oriented in the axial direction against the stop elements. The rolling body cage may have at least one transfer element extending axially between the end-face axial support surfaces.

Abstract: An adjustable steering column may include a casing unit that rotatably supports a steering spindle part and that is mounted in a guide box in an axially sliding manner and can be axially adjusted by a motor drive. The motor drive has an electric motor secured to the guide box and drives an axially aligned threaded spindle that is mounted on the guide box in a rotatable and axially fixed manner and that engages into an adjustment nut. The adjustment nut is connected to the casing unit, is axially movable together with the casing unit relative to the guide box, and is mounted in a connection part secured to the casing unit to transmit axial forces to the casing unit. The adjustment nut may be guided between opposing inner guide surfaces of the connection part with clearance such that the adjustment nut is movable within the guide surfaces on a plane orthogonal to an axial direction.

Abstract: A device and to a method for isolating a trigger signal for a test system of a LiDAR sensor, having an optical element, which is arranged in a signal pat of the trigger signal before a converging lens or a trigger detector and which is designed to allow the trigger signal to pass and to at least partially absorb a back reflection, in particular reflected off a surface, of the trigger signal that has passed through the optical element. A test system for a LiDAR sensor is also provided.

Abstract: A steering column for a motor vehicle may include a crash device that has at least two components that have mutually facing surfaces. The at least two components may be connected to each other by means of a shear element that is arranged in an opening passing at least partially through the components such that the shear element is broken in two if the components move relative to each other. To improve the predetermined breaking connection, the opening may have, in at least one edge region bounding one of the mutually facing surfaces, a widened portion that extends at least over a partial circumferential region and is open towards the respective other surface.

Abstract: A steering shaft for a motor vehicle includes a hollow outer shaft with a longitudinal axis. An inner shaft is arranged coaxially within the outer shaft. The inner shaft telescopes longitudinally relative to the outer shaft and is connected in a torque-transmitting manner to the outer shaft via a rolling body. The rolling body can roll in the direction of the longitudinal axis and the rolling body bearing in a positively locking manner in the circumferential direction about the longitudinal axis between rolling body raceways on the inner and outer shaft. The steering shaft includes a securing element with a supporting body arranged between supporting faces configured on the inner shaft and on the outer shaft, which at least one supporting body can be supported in a positively locking manner in the circumferential direction. The supporting body is spaced apart in the circumferential direction from the supporting faces.

Abstract: A steering column may include an actuating unit in which a steering shaft is mounted rotatably, a holding unit that is connectable to a body of a motor vehicle and that adjustably supports the actuating unit, a locking element that is coupled movably to the holding unit for axial locking of the actuating unit, a spring element that exerts a prestressing force on the locking element, a securing element for fixing the spring element, and a counterbearing. The locking element, the securing element, and the counterbearing may form a three-point arrangement in which the spring element is fixed. The spring element may be supported on one side on the locking element and on the other side on the counterbearing. The securing element may be arranged between the locking element and the counterbearing and may prestress the spring element.

Abstract: A two-component system for forming adhesive bonds or for chemical anchoring comprises a curable binder component A and an activator component B. The component A comprises: A-1) an inhibited hydraulic binder selected from among calcium aluminate cement, calcium sulfoaluminate cement and mixtures thereof; the component B comprises: B-1) a curing activator. At least one of the components A and/or B comprises: V-1) an organic binder; and V-2) a filler having a Mohs hardness of at least 5. The system is an aqueous system which is unproblematical from a health point of view. It is easy to process and quickly attains high strengths.

Abstract: A method for prognosis, risk assessment, risk stratification and/or diagnosis of a subject of developing late-onset Alzheimer's disease (LOAD), includes providing at least one sample isolated from the subject, and determining in the presence of ApoE4 and either rs1799931(G) or rs8192506(A), rs7653308(C), rs968529(C) and rs9658265(A). The presence or absence of these markers is indicative of a prognosis, a risk and/or a diagnosis of developing LOAD.

Abstract: A steering shaft for a motor vehicle includes a hollow shaft and an inner shaft which is arranged coaxially in the hollow shaft. The inner shaft is configured to be telescoped relative to the hollow shaft in the direction of the longitudinal axis of the steering shaft and is connected in a torque-transmitting manner to the hollow shaft via at least one rolling body. The rolling body is received in a rolling body cage such that it can roll in the direction of the longitudinal axis between the inner shaft and the hollow shaft. In order to achieve a high operational reliability with a relatively low manufacturing complexity, the rolling body cage has at least one seal element which bears sealingly against the hollow shaft and/or the inner shaft.

Abstract: A motor-adjustable steering column for a motor vehicle, includes a support unit, which can be mounted on a vehicle body, and by which an actuator unit is held, in which a steering spindle is rotatably mounted about a longitudinal axis. An adjusting drive is connected to the support unit and to the actuator unit, and by which the actuator unit can be adjusted relative to the support unit. The adjusting drive includes a drive unit and a threaded spindle engaging in a spindle nut with a threaded spindle axis, wherein the threaded spindle can be driven in rotation or in translation by the drive unit. The drive unit is connected to a component of the steering column such that it is movable in a transverse direction transversely to the threaded spindle axis.

Abstract: The invention relates to a device (1), a method, and a kit for analysing liquid samples. The device (1) comprises a sample layer (111) having a plurality of liquid permeable test sites (112) separated by a liquid impermeable barrier region (113), and an inlet part (2) comprising a plurality of inlet channels (211), which lead to respective test sites (112) of the sample layer (111), such that a flow connection between said inlet channels (211) and said respective test sites (112) is established or can be established, wherein said inlet channels (211) comprise first openings (218) and second openings (219), wherein a second surface area defined by the positions of said second openings (219) is smaller than a first surface area defined by the positions of said first openings (218) The invention further relates to a method for functionalizing a sample layer (111).

Abstract: An adjustable steering column may include a casing unit that rotatably supports a steering spindle part and that is mounted in a guide box in an axially sliding manner and can be axially adjusted by a motor drive. The motor drive has an electric motor secured to the guide box and drives an axially aligned threaded spindle that is mounted on the guide box in a rotatable and axially fixed manner and that engages into an adjustment nut. The adjustment nut is connected to the casing unit, is axially movable together with the casing unit relative to the guide box, and is mounted in a connection part secured to the casing unit to transmit axial forces to the casing unit. The adjustment nut may be guided between opposing inner guide surfaces of the connection part with clearance such that the adjustment nut is movable within the guide surfaces on a plane orthogonal to an axial direction.

Abstract: A steering shaft for a motor vehicle includes a hollow shaft and an inner shaft which is arranged coaxially in the hollow shaft. The inner shaft is configured to be telescoped relative to the hollow shaft in the direction of the longitudinal axis of the steering shaft and is connected in a torque-transmitting manner to the hollow shaft via at least one rolling body. The rolling body is received in a rolling body cage such that it can roll in the direction of the longitudinal axis between the inner shaft and the hollow shaft. In order to achieve a high operational reliability with a relatively low manufacturing complexity, the rolling body cage has at least one seal element which bears sealingly against the hollow shaft and/or the inner shaft.

Abstract: A steering shaft may include a hollow shaft in which an inner shaft is arranged telescopically coaxially in an axial direction. A rolling body may be held in a form fit manner in a circumferential direction and configured to roll in the axial direction in a rolling body holding element of a rolling body cage disposed between the inner and hollow shafts, which is arranged in the axial direction between radially projecting stop elements of the hollow shaft and of the inner shaft. The rolling body cage may have end-face axial support surfaces that are oriented in the axial direction against the stop elements. The rolling body cage may have at least one transfer element extending axially between the end-face axial support surfaces.

Abstract: The invention relates to a method of inductive current transmission via at least one transmission coil subjected with electrical power by an amplifier, wherein the amplifier is operated in a zero voltage switching (ZVC) and zero current switching (ZCV) mode.

Abstract: A steering shaft for a motor vehicle includes a hollow outer shaft with a longitudinal axis. An inner shaft is arranged coaxially within the outer shaft. The inner shaft telescopes longitudinally relative to the outer shaft and is connected in a torque-transmitting manner to the outer shaft via a rolling body. The rolling body can roll in the direction of the longitudinal axis and the rolling body bearing in a positively locking manner in the circumferential direction about the longitudinal axis between rolling body raceways on the inner and outer shaft. The steering shaft includes a securing element with a supporting body arranged between supporting faces configured on the inner shaft and on the outer shaft, which at least one supporting body can be supported in a positively locking manner in the circumferential direction. The supporting body is spaced apart in the circumferential direction from the supporting faces.

Abstract: A motor-adjustable steering column for a motor vehicle, includes a support unit, which can be mounted on a vehicle body, and by which an actuator unit is held, in which a steering spindle is rotatably mounted about a longitudinal axis. An adjusting drive is connected to the support unit and to the actuator unit, and by which the actuator unit can be adjusted relative to the support unit. The adjusting drive includes a drive unit and a threaded spindle engaging in a spindle nut with a threaded spindle axis, wherein the threaded spindle can be driven in rotation or in translation by the drive unit. The drive unit is connected to a component of the steering column such that it is movable in a transverse direction transversely to the threaded spindle axis.