摘要:
The invention relates to a fluid-cooled fuel cell, in which the cell surfaces are supplied with reaction media via axial supply ducts and radial distribution ducts, the distribution ducts being located in the cell surface and running along the edge of the cell surface, with the open side toward the active surface.According to the invention, the supply and distribution ducts in a fuel-cell stack are arranged such that distribution ducts are arranged in the edge region of the cell surfaces, as a result of stacking and staggering, in such a way that the inlet of the medium to the cell surface along a distribution duct is not carried out in a point-like manner, and that the entire cell surface is uniformly supplied with medium.
摘要:
The invention relates to the use of 2D projection images which belong to a specific common heart phase. A 3D image data set can be used to generate a reference projection image for the same projection angle for each of the 2D projection images and a differential image can be derived from the reference projection image and 2D projection image. The differential images are back-projected and combined in one 3D differential image data set and, by using this, a deformed 3D image data set is obtained from the previously recorded 3D image data set. Iterations guarantee that the deformed 3D image data set ensues with the smallest possible distance from the 2D projection images for the existing common heart phase. Finally, a 3D image data set is available for a different heart phase other than the reference heart phase and the possibilities for imaging a patient's heart are extended.
摘要:
The present disclosure relates to an antenna arrangement, comprising a regular array of electrically conducting antenna elements, arranged on a support, embodied and positioned to be displaced between a first position, in which an electrical contact to at least one adjacent antenna element is possible and a second position, with electrical isolation from the adjacent antenna element, a HF contact, for at least one of the antenna elements and a controller, for displacement of the antenna element between the first and second positions and for embodiment of a desired antenna structure.
摘要:
In a method for bidirectional transmission of data between a data processing device and a router data is transmitted over a plurality of sections. Data is transmitted over a first section between the data processing device and an access point via an air interface in accordance with a predefined first data transmission method. The data is transmitted over a second section between the access point and a central control unit via a cable-based connection in accordance with a predefined second data transmission method. The data is transmitted over a third section between the central control unit and the router in accordance with a predefined third data transmission method. The access point has a first layer for data transmission in accordance with the first data transmission method and layers hierarchically above the first layer for data transmission in accordance with the first data transmission method are disposed in the central control unit.
摘要:
The invention relates to a method for the diagnosis of driver outputs (20) and to a diagnosis pulse manager (10) that can supply a pulse to a driver output (20) in order to carry out a diagnosis of said driver output. As a plurality of diagnosis pulses may be required simultaneously for the system requirements (12), a diagnosis pulse requirement register (14) and a diagnosis pulse execution register (16) are provided such that a plurality of simultaneous requirements (12) can be stored. On the basis of the buffering of requirements (12), a plurality of stored pulse requirements can be successively taken into account according to pre-determined rules.