Abstract: A speech valve for placing and fitting on a tracheostomy cannula, having a throughflow body enclosing a throughflow channel which on one side at one end has a connection for joining to a proximal end of the tracheostomy cannula, a one-way valve located at an end of the throughflow body opposite the connection, and, at a distance along the throughflow channel between the connection and the one-way valve, a valve opening is located which is closable by an overpressure valve. The overpressure valve arrangement has at least one elastically deformable valve flap which, in a first state covers the valve opening provided between the connection structure and the one-way valve on the throughflow body and, at a predefinable overpressure occurring inside the throughflow channel converts, by an overpressure-driven elastic deformation of the valve flap, to a second state, in which it at least partially exposes the valve opening.

Abstract: A reconfigurable GPR device for acquiring radar data about a medium includes a radar antenna with a first polarization, a processor unit connected to the antenna, and a casing around the antenna and the processor unit. Further the device includes at least one of a wheel assembly and a direction-determining unit. If present, the wheel assembly includes a holder, a wheel and a wheel rotation sensor. The wheel rotation sensor is connected to the processor unit, and an axis of the wheel is pivotal relative to the first polarization. If present, the direction-determining unit is connected to the processor unit and adapted to determine directional information. The directional information is descriptive of an angle between a direction of movement of the device and the first polarization.

Abstract: A reconfigurable ground penetrating radar (GPR) device, an autonomous GPR system and method of acquiring radar data about a medium. The GPR device includes a radar antenna with a first polarization, a processor unit connected to said antenna, a casing around the antenna and the processor unit, a wheel assembly including a holder, a wheel and a wheel rotation sensor. The wheel rotation sensor is connected to the processor unit and an axis of the wheel is pivotal relative to the first polarization.

Abstract: A ground-penetrating radar device comprises a frame, a radar antenna, and an antenna assembly, wherein the antenna is part of the antenna assembly. Further the GPR device comprises a mount for adaptively mounting the antenna assembly to the frame and a ground support for supporting the frame on the ground. In an operational state, the mount prevents a horizontal displacement of the antenna assembly relative to the frame in two horizontal directions. In the operational state, the mount further allows a vertical displacement of the antenna assembly relative to the frame and a tilting of the antenna assembly relative to the frame.

Abstract: Various embodiments may include a clutch assembly comprising: a first coupling and a second coupling; and a vibration damper with a spring. The first coupling includes a crankshaft connection and a coupling-in element which can be connected to one another in a controlled manner. The second coupling has an output connection and an intermediate element which can be connected to one another in a controlled manner. The spring connects the intermediate element and the coupling-in element to one another.

Abstract: Various embodiments may include a clutch assembly comprising: a first coupling and a second coupling; and a vibration damper with a spring. The first coupling includes a crankshaft connection and a coupling-in element which can be connected to one another in a controlled manner. The second coupling has an output connection and an intermediate element which can be connected to one another in a controlled manner. The spring connects the intermediate element and the coupling-in element to one another.

Abstract: A reconfigurable GPR device for acquiring radar data about a medium includes a radar antenna with a first polarization, a processor unit connected to the antenna, and a casing around the antenna and the processor unit. Further the device includes at least one of a wheel assembly and a direction-determining unit. If present, the wheel assembly includes a holder, a wheel and a wheel rotation sensor. The wheel rotation sensor is connected to the processor unit, and an axis of the wheel is pivotal relative to the first polarization. If present, the direction-determining unit is connected to the processor unit and adapted to determine directional information. The directional information is descriptive of an angle between a direction of movement of the device and the first polarization.

Abstract: The disclosure relates to an electric exhaust-gas catalytic converter that has a heating device. The heading device includes a first heating element and a second heating element that are arranged separately from one another upstream and downstream of an active catalysis region of the electric exhaust-gas catalytic converter. The disclosure also relates to a vehicle which includes the electric exhaust-gas catalytic converter and to a method for operating the electric exhaust-gas catalytic converter.

Abstract: The disclosure relates to an electric exhaust-gas catalytic converter that has a heating device. The heading device includes a first heating element and a second heating element that are arranged separately from one another upstream and downstream of an active catalysis region of the electric exhaust-gas catalytic converter. The disclosure also relates to a vehicle which includes the electric exhaust-gas catalytic converter and to a method for operating the electric exhaust-gas catalytic converter.

Abstract: An electrical connection device (1), especially in the form of a connecting box, comprises a housing (2) having a wall (4) delimiting an inner space (3), electrical components (5) arranged in said inner space (3) and having at least two connecting portions (6, 7, 8), and at least two connecting holes (9, 10, 11) passing through the wall (4), through which external elements (12) connectable to the connecting portions (6, 7, 8) can be guided into the inner space (3). The connection device (1) further comprises a mechanical safety element (13) having a number of stop elements (14, 15, 16) that corresponds to the number of connecting portions (6, 7, 8), which stop elements (14, 15, 16) provide a mechanical stop for the external elements (12).

Abstract: An electrical connection device (1), especially in the form of a connecting box, comprises a housing (2) having a wall (4) delimiting an inner space (3), electrical components (5) arranged in said inner space (3) and having at least two connecting portions (6, 7, 8), and at least two connecting holes (9, 10, 11) passing through the wall (4), through which external elements (12) connectable to the connecting portions (6, 7, 8) can be guided into the inner space (3). The connection device (1) further comprises a mechanical safety element (13) having a number of stop elements (14, 15, 16) that corresponds to the number of connecting portions (6, 7, 8), which stop elements (14, 15, 16) provide a mechanical stop for the external elements (12).

Abstract: The invention relates to an internal combustion engine comprising an inlet tract, leading to the inlet to a cylinder where a gas inlet valve is arranged. A valve drive for the gas inlet valve is provided, by means of which the valve stroke of the gas inlet may be adjusted using an actuator element, which permits differing cams to operate the gas inlet valve. An inductive actuator drive is arranged on the actuator element in which a voltage is induced during a switching process. A first unit is embodied for recognition of whether a switching of the valve stroke has occurred by means of the voltage induced in the inductive actuator drive which is characteristic of the switching process. A second unit is embodied for the control of at least one further actuator body depending on whether a switching of the valve is recognized in the first switching unit.

Abstract: The invention relates to an internal combustion engine comprising an inlet tract, leading to the inlet to a cylinder where a gas inlet valve is arranged. A valve drive for the gas inlet valve is provided, by means of which the valve stroke of the gas inlet may be adjusted using an actuator element, which permits differing cams to operate the gas inlet valve. An inductive actuator drive is arranged on the actuator element in which a voltage is induced during a switching process. A first unit is embodied for recognition of whether a switching of the valve stroke has occurred by means of the voltage induced in the inductive actuator drive which is characteristic of the switching process. A second unit is embodied for the control of at least one further actuator body depending on whether a switching of the valve is recognized in the first switching unit.