Abstract: A method for applying a spray to a field using an agricultural spraying device. The method includes: monitoring a field section of the field having plants, using an optical and/or infrared detection unit; identifying at least one row of plants in the monitored field section using a processing unit; using the processing unit, defining a plant region including the at least one identified row of plants in a specified evaluation portion of the monitored field section, using the at least one identified row of plants and a weed region different from the plant region; ascertaining a plant value of the weed region in the specified evaluation portion of the monitored field section using the processing unit; and applying the spray to the weed region of the specified evaluation portion as a function of the ascertained plant value, using spray nozzles of the agricultural spraying device.

Abstract: A method for applying a spray onto agricultural land using at least one spray nozzle unit of an agricultural spraying device. The method includes: detecting a field section of the agricultural land using at least one optical detection unit to obtain image information on the field section with a depth in the travel direction of the spraying device; identifying plants in an image evaluation region of the obtained image information using a control unit, the image evaluation region representing a corresponding field evaluation region of the detected field section with a depth in the travel direction of the spraying device; and applying the spray onto the field evaluation region of the detected field section using the spray nozzle unit of the agricultural spraying device depending on the plants identified in the image evaluation region; and selecting a variable depth of the image evaluation region using the control unit.

Abstract: A method for applying a spray agent to an agricultural land using a spray nozzle unit of an agricultural spray device. The method includes detecting first and second field sections of the agricultural land using an optical detection unit to obtain first and second pieces of image information from the first and second field sections, wherein the pieces of image information have a common lateral overlapping area having a depth in the travel direction of the agricultural spray device; classifying plants in the obtained pieces of image information using a control unit; determining first and second plant identification numbers for first and second image evaluation areas in the obtained first and second pieces of image information using the classified plants; and applying the spray agent as a function of the determined plant identification numbers using the spray nozzle unit of the agricultural spray device.

Abstract: A method for applying a spray to a field using an agricultural spraying device. The method includes: monitoring a field section of the field having plants, using an optical and/or infrared detection unit; identifying at least one row of plants in the monitored field section using a processing unit; using the processing unit, defining a plant region including the at least one identified row of plants in a specified evaluation portion of the monitored field section, using the at least one identified row of plants and a weed region different from the plant region; ascertaining a plant value of the weed region in the specified evaluation portion of the monitored field section using the processing unit; and applying the spray to the weed region of the specified evaluation portion as a function of the ascertained plant value, using spray nozzles of the agricultural spraying device.

Abstract: An aircraft air conditioning system comprising an air conditioning unit adapted and configured to be supplied with compressed process air and to generate cold fresh air, a mixer adapted and configured to mix the cold fresh air from the air conditioning unit with recirculation air recirculated from an aircraft region to be air conditioned, an air outlet adapted and configured to direct mixed air from the mixer into the aircraft region, a first sensor adapted and configured to detect an actual temperature in the aircraft region, a second sensor adapted and configured to detect a temperature of the mixed air directed into the aircraft region, and a control unit adapted and configured to control an operation of the air conditioning unit in dependence on a difference between the temperature of the mixed air directed into the aircraft region and the actual temperature in the aircraft region.

Abstract: A method for applying a spray, in particular a plant protection product, onto a field, including: detecting plants in a field section of the field with the aid of an optical and/or infrared detection unit; identifying at least one plant row in the detected field section; defining a plant area encompassing the at least one identified plant row and a weed area, different from the plant area, in the detected field section; ascertaining a plant identifier of the weed area; and applying spray onto the weed area, in particular onto the field section, depending on the ascertained plant identifier with the aid of a spraying device.

Abstract: An aircraft air conditioning system comprising an air conditioning unit adapted and configured to be supplied with compressed process air and to generate cold fresh air, a mixer adapted and configured to mix the cold fresh air from the air conditioning unit with recirculation air recirculated from an aircraft region to be air conditioned, an air outlet adapted and configured to direct mixed air from the mixer into the aircraft region, a first sensor adapted and configured to detect an actual temperature in the aircraft region, a second sensor adapted and configured to detect a temperature of the mixed air directed into the aircraft region, and a control unit adapted and configured to control an operation of the air conditioning unit in dependence on a difference between the temperature of the mixed air directed into the aircraft region and the actual temperature in the aircraft region.

Abstract: A magnet valve configured to control a fluid includes an armature with a base region, a casing region, and a head region. The magnet valve also includes a valve element that is connected to the armature and an armature housing component. A flow path is formed between the armature and the armature housing component. The flow path runs from a lower armature chamber to an upper armature chamber and back to the lower armature chamber. The head region of the armature has a flattened section, and the upper armature chamber is defined between the armature housing component and the flattened section. At least one groove is formed on the casing region of the armature starting from the base region. The at least one groove ends in the casing region before the flattened section of the head region.

Abstract: A solenoid valve is disclosed that includes at least one chamber which can be filled with a fluid and which is provided in a housing of the solenoid valve, a closing piston which can be displaced by an actuation device and a spring element which can act against the actuation device. An annular element which divides the chamber into a first and a second sub-chamber is provided, said annular element being at least partially, in particular completely engaged in the axial direction by a closing piston of the solenoid valve arranged in a guide opening of the annular element and comprises at least one fluid passage recess which is different from the guide opening.

Abstract: A method for operating a machine located in choppy waters, in particular a wave energy converter, for converting energy from a wave movement of a fluid into another form of energy includes determining measurement variables at a first, relatively early time, and calculating a variable characterizing a wave movement expected at a second, later time on the basis of the determined measurement variables.

Abstract: A wave energy converter comprises a rotor, which is designed to convert a wave movement of a body of water, in which the wave energy converter is arranged, into a rotational movement of the rotor, wherein a mean density of at least one rotating component of the rotor can be adjusted and/or is lower than the mean density of the fluid surrounding the rotor in the body of water. The disclosure likewise relates to a corresponding control device and an operating method.

Abstract: A solenoid valve for controlling a fluid includes an armature having a base region, a lateral region and a head region. The solenoid valve includes a valve member connected to the armature. The solenoid valve further includes an armature casing component in which the armature is positioned. A flow path is formed between the armature and the armature casing component, the flow path extending from a lower armature space to an upper armature space and back to the lower armature space. A junction region is arranged between the head region and the lateral region. The junction region has at least one groove formed therein to facilitate an overflow between the lateral region and the head region.

Abstract: The invention relates to a valve cartridge for a solenoid valve, having a capsule, a magnetic armature that is movably guided within the capsule, a valve insert that is inserted into the capsule at a first end, and a valve body, which is pressed into a second end of the valve insert and has a main valve seat. The magnetic armature, moved by a generated magnetic force, moves a tappet guided within the valve insert. The tappet has a closing element with a sealing element which plunges into the main valve seat of the valve body in a sealing manner for carrying out a sealing function, and an associated solenoid valve. According to the invention the valve insert is configured as a one-part slotted bushing, and the valve body is configured as a bonnet-shaped bushing. The valve body configured as a bushing is pressed into a second end of the valve insert configured as a slotted bushing such that the main valve seat is disposed within the valve insert.

Abstract: A wave energy converter comprises a rotor, which is designed to convert a wave movement of a body of water, in which the wave energy converter is arranged, into a rotational movement of the rotor, wherein a mean density of at least one rotating component of the rotor can be adjusted and/or is lower than the mean density of the fluid surrounding the rotor in the body of water. The disclosure likewise relates to a corresponding control device and an operating method.

Abstract: A method for operating a wave energy converter for converting energy from a wave motion of a fluid into another form of energy, wherein the wave energy converter has a lever arm, which is mounted so as to be rotatable about a rotor rotational axis and bears a coupling body and an energy converter which is coupled to the rotatably mounted lever arm, includes controlling a rotational speed of the lever arm about the rotor rotational axis such that, averaged over time over one revolution, it corresponds to an orbital speed of the wave motion, and controlling the rotational speed of the lever arm such that an angle between a tangential speed of the coupling body and of a local flow rate of the wave motion about the coupling body deviates at maximum by a predefinable value of 90°.

Abstract: The invention relates to a solenoid valve, particularly for controlling the brake pressure of a wheel brake of a slip-controllable hydraulic brake system of a motor vehicle. In known solenoid valves, there is a first hydraulically effective connection of an armature chamber of the solenoid valve to an outlet through the guide of a tappet in a valve insert. The first hydraulically effective connection ends in the form of a blind hole and thus does not permit flushing out gas bubbles which possibly have accumulated in the armature chamber. In order to solve this problem, the invention proposes a second hydraulically effective connection which is arranged away from the guide of the tappet, uncoupled from the first hydraulically effective connection. Thus, a closed pressure medium path is effected within a valve cartridge of the solenoid valve, the closed pressure medium path making possible an effective flushing of the armature chamber and thus a flushing out of gas bubbles.

Abstract: A valve for controlling fluids with an improved flow behavior includes a valve element with a through opening and a valve seat, wherein the valve seat is formed on a first conical region of the valve element, and closing element opens and closes the through opening at the valve seat, wherein the through opening has a shape which widens in the flow direction.

Abstract: A solenoid valve is disclosed that includes at least one chamber which can be filled with a fluid and which is provided in a housing of the solenoid valve, a closing piston which can be displaced by an actuation device and a spring element which can act against the actuation device. An annular element which divides the chamber into a first and a second sub-chamber is provided, said annular element being at least partially, in particular completely engaged in the axial direction by a closing piston of the solenoid valve arranged in a guide opening of the annular element and comprises at least one fluid passage recess which is different from the guide opening.

Abstract: A method for operating a wave energy converter for converting energy from a wave movement of a fluid into a different form of energy. The wave energy converter including at least one rotor and at least one energy converter coupled to the at least one rotor. A first torque acting on the at least one rotor is generated by the movement of the waves and a second torque acting on the at least one rotor is generated by the at least one energy converter. A desired effective force acting perpendicular to an axis of rotation of the at least one rotor is set by setting the first and/or second torque.

Abstract: A solenoid valve includes a housing which extends in the axial direction and has at least one axial section which is embodied as a circular hollow cylinder, and a solenoid armature which is removably guided in the housing along a cylinder inner wall in an axial direction along the longitudinal axis of said housing and the solenoid armature having a solenoid armature casing wall. At least one axial flow duct for a medium is located in the housing and is provided to permit a flow around the solenoid armature. The flow duct has a first and a second duct wall region, and the first duct wall region is formed by a section of the cylinder inner wall and the second duct wall region is formed by a section of the solenoid armature casing wall. The second duct wall region is embodied as a planar second duct wall region.