Abstract: A diffuser, an air supply device and a vacuum cleaning equipment are provided. The diffuser has a base ring member and multiple rows of stationary blades. Each row of stationary blades is disposed on an outer ring wall of the base ring member along an axial direction of the base ring member, and is arranged along a circumferential direction of the base ring member. Opposite sides of the base ring member are respectively an air-inlet side and an air-outlet side. A chord length of each stationary blade in one row is greater than or equal to the chord length of each stationary blade in a next adjacent row. The installation angle of each stationary blade in one row is smaller than or equal to the installation angle of each stationary blade in the next adjacent row.

Abstract: A transaction monitoring method for a distributed database, apparatus, system and storage medium are disclosed. The transaction monitoring method for a distributed database includes: after receiving an execution request for a transaction, recording transaction indication information carried in the execution request for the transaction; and, performing transaction monitoring according to the transaction indication information.

Abstract: A computer-implemented method for generating a computer-readable model for a technical system on the basis of text-based specification data for the technical system, the text-based specification data specifying at least one system condition is provided. A plurality of model components for the computer-aided modelling of the technical system are provided, each model component being assigned a model component identifier. By means of generative adversarial networks, model components are selected, using their model component identifiers, from the plurality of model components on the basis of the text-based specification data, and a computer-readable model for the technical system is generated from the selected model components in such a way that model data of the computer-readable model satisfy at least one system condition specified in the text-based specification data.

Abstract: A station for a hyperloop transportation system includes a tube comprising a low-pressure environment, a plurality of tracks within the tube, each track adapted to carry a hyperloop capsule, and a turntable joined to an end of the tube, adapted to rotate a capsule one hundred and eighty degrees. The station also includes a platform disposed on a side of the tube, adapted to hold a plurality of people, and a plurality of gates disposed in one side of the tube. Each gate includes a door forming a barrier between the low-pressure environment of the tube and an exterior of the tube, and a sealing mechanism adapted to form a seal with a hyperloop capsule.

Abstract: A station for a hyperloop transportation system includes a tube comprising a low-pressure environment, a plurality of tracks within the tube, each track adapted to carry a hyperloop capsule, and a turntable joined to an end of the tube, adapted to rotate a capsule one hundred and eighty degrees. The station also includes a platform disposed on a side of the tube, adapted to hold a plurality of people, and a plurality of gates disposed in one side of the tube. Each gate includes a door forming a barrier between the low-pressure environment of the tube and an exterior of the tube, and a sealing mechanism adapted to form a seal with a hyperloop capsule.

Abstract: A device for detecting a difference in illumination may include at least two adjacent photoelectric sensor element groups on which light falls during an adjustable illumination time, said light being converted to a quantity of electric charge, which corresponds to the quantity of light falling on each sensor element group during the illumination time, and having a detector, which detects a minimum charge of the charge quantities generated by both photoelectric sensor element groups and subtracts said minimum charge from both photoelectric sensor element groups. The device can be used in a variety of applications, e.g., for digital cameras and medical devices. Wavelet coefficients can be generated directly using metrological and sensory means and may be available for further signal processing.

Abstract: In a method and apparatus for difference measurement of an image, the image is detected by an image sensor array having (N×N) sensor elements, wherein N=2n, n?2, and n being an integer number, each detected sample value is read as a positive or as a negative sample value according to a sign control pattern from a pattern control unit, and measurement values are generated for measurement template blocks of the image sensor array by a computing unit which computes for each measurement template block a weighted sum of the read sample values of the respective measurement template sensor elements depending on a predetermined measurement template. A measurement template block is, provided for at least four adjacent sensor elements of the image sensor array. The method/apparatus can be used in any kind of digital camera and allows for a fast generation of image data with a hardware implementation of low complexity.

Abstract: In a method for producing at least one surface on a workpiece by a material removal tool and a corresponding material removal device, the surface is produced quickly and at low cost. Based on any surface to be produced, a movement path of the material removal tool is controlled to produce a ruled surface approximating to the surface, the movement path being provided in the form of a curve on a dual unit sphere, wherein a curve point corresponds to a location and an orientation of the removal tool. The curve can be produced based on ruling lines, which are converted into points, interpolated by a dual sphere spline interpolation algorithm, on the dual unit sphere by mathematical transformations. The curve can then be transformed back or can be used directly to follow the material removal tool. Likewise, directrix curves can be determined by the dual sphere spline interpolation algorithm.

Abstract: In a method and apparatus for difference measurement of an image, the image is detected by an image sensor array having (N×N) sensor elements, wherein N=2n, n?2, and n being an integer number, each detected sample value is read as a positive or as a negative sample value according to a sign control pattern from a pattern control unit, and measurement values are generated for measurement template blocks of the image sensor array by a computing unit which computes for each measurement template block a weighted sum of the read sample values of the respective measurement template sensor elements depending on a predetermined measurement template. A measurement template block is, provided for at least four adjacent sensor elements of the image sensor array. The method/apparatus can be used in any kind of digital camera and allows for a fast generation of image data with a hardware implementation of low complexity.

Abstract: An apparatus for difference measurement of an object image of an object has an optical phase shift masking unit (2) for performing a phase shift of electromagnetical waves originating from the object according to a predetermined mask pattern, an optical superposition unit (3) for superposition of the phase shifted electromagnetical waves provided by the optical phase shift masking unit and a sensor array (4) for detecting intensities of the superpositioned electromagnetical waves provided by the optical superposition unit. The apparatus can be used in any kind of digital camera used in the visible and non-visible frequency range.