Abstract: A method is provided for tracking-based visibility range estimation for a vehicle, the method including a step of tracking an object detected in a first image at a first point in time and in a second image at a second point in time, a step of ascertaining a first object luminance of the object and a first distance to the object at the first point in time and also ascertaining a second object luminance of the object and a second distance to the object at the second point in time, and also a step of determining an atmospheric extinction coefficient using the first object luminance, the second object luminance, the first distance, and the second distance, the atmospheric extinction coefficient being in direct correlation to visibility range.

Abstract: The invention relates to a turbofan aircraft engine that comprises a primary duct including a combustion chamber; a first turbine disposed downstream of the combustion chamber; a compressor disposed upstream of the combustion chamber and coupled to the first turbine; and a second turbine disposed downstream of the first turbine and coupled to a fan for feeding a secondary duct of the turbofan aircraft engine. The bypass ratio of the inlet area of the secondary duct to the inlet area of the primary duct is at least 7 and the second turbine comprises at least two stages. For the first stage the mean radius r of a stator vane expressed in inch divided by the number of stator vanes is at least 0.18.

Abstract: The invention relates to a turbofan aircraft engine that comprises a primary duct including a combustion chamber; a first turbine disposed downstream of the combustion chamber; a compressor disposed upstream of the combustion chamber and coupled to the first turbine; and a second turbine disposed downstream of the first turbine and coupled to a fan for feeding a secondary duct of the turbofan aircraft engine. The bypass ratio of the inlet area of the secondary duct to the inlet area of the primary duct is at least 7 and the second turbine comprises at least two stages. The mean outer radius of the last stage of the second turbine divided by the length of the second turbine is at least 1.4.

Abstract: Camera calibration includes capturing a first image of an object by a first camera, determining spatial parameters between the first camera and the object using the first image, obtaining a first estimate for an optical center, iteratively calculating a best set of optical characteristics and test setup parameters based on the first estimate for the optical center until the difference in a most recent calculated set of optical characteristics and previously calculated set of optical characteristics satisfies a predetermined threshold, and calibrating the first camera based on the best set of optical characteristics. Multi-camera system calibration may include calibrating, based on a detected misalignment of features in multiple images, the multi-camera system using a context of the multi-camera system and one or more prior stored contexts.

Abstract: A method is provided for determining a visual range in daytime fog, the method (800) including a step of reading in and a step of ascertaining. In the step of reading in, coordinates of at least one characteristic point of a brightness curve of a camera image of the fog are read in. The brightness curve represents brightness values of image points of the camera image along a reference axis of the camera image. In the step of ascertaining, a meteorological visual range in the camera image is ascertained using the coordinates, a meteorological contrast threshold, and a processing specification, in order to estimate the visual range in fog. The processing specification images location-dependent and/or direction-dependent scattered light through the fog in the camera image.

Abstract: A method for determining values which are suitable for distortion correction of an image, including the following steps: a step of splitting a vector field, which is suitable for distortion correction of the image, into a sum of vector products, and a step of determining terms of the vector products as suitable values for distortion correction of the image.

Abstract: The present invention relates to a heat storage system with a plurality of storage tanks, in which a latent heat storage medium is disposed, and with a conduit system with supply conduits for supplying heat into the storage tanks and with discharge conduits for removing heat from the storage tanks, wherein the conduit system includes one or more valves by means of which at least one supply conduit to at least one of the storage tanks and/or at least one discharge conduit from at least one of the storage tanks can be shut off or be varied in its flow rate, and with a control unit which is connected with the one or more valves and is configured such that it actuates the same.

Abstract: A movable platform having a fall prevention device is arranged in a shaft of an elevator system and is operated by a corresponding method for securing the movable platform. The movable platform includes a complete machine room used in an expandable elevator for a building under construction. The movable platform can be moved vertically along guide rails. In order to secure the movable platform during movement, the fall prevention device includes at least one arresting device that is arranged on the movable platform and which can be brought into engagement with the guide rail if necessary. A locking element arranged on the movable platform interacts with a safety component arranged along the movement path, and can, if necessary, actuate the arresting device together with an arresting braking system of an elevator car attached to the movable platform, the locking element thus blocking a possible downward motion.

Abstract: The invention relates to a Method for 3D ultrasound image acquisition as well as to a system for conducting the method. The proposed method checks whether the current ultrasound image (401, 402) has at least a pixel in the volume of interest (301), wherein in case the current image (401, 402) has no pixel in the volume of interest (301), the current image (401, 402) is discarded, wherein otherwise the current ultrasound image (401, 402) is segmented and compounded into said 3D model (403) to be generated which is displayed in real-time on the display (101) and particularly overlaid on the displayed pre-acquired image (305), wherein particularly in case a new current ultrasound image (401, 402) is compounded into the 3D model (403), the displayed 3D model (403) on the display (101) is updated.

Abstract: A method for introducing an elevator support into an elevator system includes a support brake device for controlling a drawing-in speed of the elevator support. The elevator support is wound on a support roller at a floor or in a machine room of a building. The elevator support is unwound from the roller and introduced into a shaft of the elevator system. The support brake device is arranged between the support roller and the shaft, and a drawing-in speed of the elevator support is adjusted by the support brake device. The support brake device contains a traction pulley for receiving the elevator support that is rotatably mounted in a support frame so that the elevator support can at least partly loop around the traction pulley. The traction pulley is braked by a pulley brake device, whereby the drawing-in speed can be controlled.

Abstract: A construction machine according to the disclosure comprises a material hopper for receiving bulk material. The material hopper comprises a first sub-hopper that is pivotable about a first axis and a second sub-hopper that is pivotable about a second axis, wherein the first and second axes extend parallel to each other. The first and second sub-hoppers each comprise a rear wall, and the rear walls are shifted with respect to each other in a direction parallel to the axes, whereby a collision of the rear walls is prevented when pivoting the first and/or the second sub-hopper.

Abstract: A turbofan aircraft engine has at least one stage pressure ratio is at least 1.5, and a quotient of the total blade count divided by 110 is less than a difference ([(p1/p2)?1]) of the total pressure ratio minus one, and the total pressure ratio is greater than 4.5, and the turbine has at least two and no more than five turbine stages; and/or a product (An2) of an exit area (AL) of the second turbine and a square of a rotational speed of the second turbine at the design point is at least 4.5·1010 [in2·rpm2], and a blade tip velocity (uTIP) of at least one turbine stage of the second turbine at the design point is at least 400 meters per second. A jet and method are also provided.

Abstract: A method is provided for determining a visual range in daytime fog, the method (800) including a step of reading in and a step of ascertaining In the step of reading in, coordinates of at least one characteristic point of a brightness curve of a camera image of the fog are read in. The brightness curve represents brightness values of image points of the camera image along a reference axis of the camera image. In the step of ascertaining, a meteorological visual range in the camera image is ascertained using the coordinates, a meteorological contrast threshold, and a processing specification, in order to estimate the visual range in fog. The processing specification images location-dependent and/or direction-dependent scattered light through the fog in the camera image.

Abstract: A turbofan aircraft engine having a primary duct (C), including a combustion chamber (BK), a first turbine (HT) disposed downstream of the combustion chamber, a compressor (HC) disposed upstream of the combustion chamber and coupled (W1) to the first turbine, and a second turbine (L) disposed downstream of the first turbine and coupled (W2) via a speed reduction mechanism (G) to a fan (F) for feeding a secondary duct (B) of the turbofan aircraft engine. A square of a ratio of a maximum blade diameter (DF) of the fan to a maximum blade diameter (DL) of the second turbine is at least 3.5, in particular at least 4.

Abstract: A method is provided for tracking-based visibility range estimation for a vehicle, the method including a step of tracking an object detected in a first image at a first point in time and in a second image at a second point in time, a step of ascertaining a first object luminance of the object and a first distance to the object at the first point in time and also ascertaining a second object luminance of the object and a second distance to the object at the second point in time, and also a step of determining an atmospheric extinction coefficient using the first object luminance, the second object luminance, the first distance, and the second distance, the atmospheric extinction coefficient being in direct correlation to visibility range.

Abstract: A vehicle body includes a bottom sillboard, the inner and outer profile parts of which are joined together, as viewed in the vehicle transverse direction, at upper and lower flange connections, to which bottom sillboard a pillar base of a body pillar element is attached, which, in the event of a side collision is supported with a first support profile against the upper flange connection of the bottom sillboard, and with a second support profile against a sillboard outer wall between the two flange connections. According to the invention, a force transmission element is provided in the hollow space of the bottom sillboard. In the event of a side collision, the force transmission element provides an additional force path between the second support profile and a sillboard inner wall.

Abstract: A tool and a method are described for sheathing an elongated product available by the measured length, in particular in the form of a fiber or a fiber bundle, with at least one thermoplastic layer, with a wetting unit comprising at least one contact zone that can be filled with a flowable thermoplastic, through which the elongated product can be guided for the purpose of wetting with the thermoplastic in the form of a continuously progressing strand. The invention has a first feeding area for the elongated product and a second feeding area for the thermoplastic to emerge into the at least one contact zone. The contact zone comprises at least one outlet area and has a means is provided along the second feeding area, by which the thermoplastic can be introduced, subject to pressure, into the contact zone in the direction of the outlet area.

Abstract: The invention relates to a system for estimating the spatial position (pose) of a tool (2) within an object (1), particularly in the form of a human bone that is to be machined with said tool, comprising: a sensor (21) being designed to be coupled to said tool (2), which sensor (21) is further designed to generate an sensor output signal (31) upon machining of said object (1) along an actual trajectory (30), which sensor output signal (31) depends on a material property of said object along said actual trajectory (30), an analyzing means being designed to determine a correlation between said sensor output signal (31) upon machining said object (1) and a plurality of pre-determined candidate output signals (42), each candidate output signal (42) being generated in beforehand using said material property along an associated model trajectory (40) in a model of said object (1), and wherein said analyzing means is designed to estimate a spatial position of the tool (2) within the object (1) using the model traject

Abstract: The invention relates to an improved retainer system for a mobile-telephony antenna and a mobile-telephony component, which is characterised inter alia, by the following features:—said mobile-telephony component (MK) is secured, on the carrier side, by a retainer system which is separate from the retainer device (11, 7) for said mobile-telephony antenna (MA),—the retainer system also comprises at least one carrier-side mobile-telephony component-retainer device (17),—said mobile-telephony component (MK) comprises at least component-side mobile-telephony component-retainer device (25),—an interface and/or separating point (X) or a pivoting and/or displacement plane (E) is formed between said carrier-side mobile-telephony component-retainer device (17) and the respective component-side mobile-telephony component-retainer device (25), and—when the associated fixture means are released, the mounted mobile-telephony component (MK) may be removed, with the component-side mobile-telephony component-retainer device (