Abstract: The method decomposes the radio frequency signal into sub-bands by filtering, for example with a time-frequency transform. From the coefficients acquired through decomposition a matrix of spectral coefficients is obtained, from which local estimators are obtained, constituted in particular by the coefficients of the interpolating polynomials. The statistical distribution of the local estimators is evaluated in windows overlaid on the ultrasound frame. The conformation of the distribution histograms of the spectral coefficients provides a parameter which, combined with the local estimators, provides weighted local estimators, which contain spectral information useful in the identification of specific structures in the organ subjected to ultrasound analysis.

Abstract: To obtain an improved possibility of establishing the causes of failure in linear drive devices with an electric drive, operational data logging means shall be provided for logging data in connection with operational loads and/or an operating state of the electric drive, which occur over a certain period of time, wherein the operational data logging means can be connected to the power connection means for data logging. Means for storing data, which are based on a plurality of measurements of the same measured variable, which measurements are performed one after another, make it possible to log and evaluate data over a long period of time, preferably during the entire service life of the linear drive device. The measurements are carried out during the use of the linear drive device (14) during which it is in a loaded state.

Abstract: A connection system for the preferably contactless transmission of data and power supply signals between a sensor means and a base unit in a measuring and transmission system comprises a sensor-side and a base-side connection element. An input unit is provided on at least one of the connection elements for inputting sensor-relevant commands.

Abstract: An apparatus for efficiently observing protein crystals for use in X-ray analysis is provided. This apparatus includes an ultra-compact proximity imaging unit and a three-dimensional observation adaptor (4) attached thereto. The imaging unit includes a CCD camera (2) and a lens system (3) and an illumination system in front of the CCD camera (2). The lens system (3) includes a variable or fixed magnification lens. The three-dimensional observation adaptor (4) has an optical-axis reflective surface (4c) disposed between the frontmost lens of the lens system (3) and a production container (100) containing protein crystals in the optical axis a of the lens system (3) and a revolving reflective surface (4d) disposed opposite the optical-axis reflective surface (4c) revolvably about the optical axis to three-dimensionally observe the crystals contained in the production container (100) in an oblique or lateral direction.

Abstract: A device for dry forming a web of fibers. The device includes; a fiber distribution head (1); a forming wire (3) movable under the head; a suction means (5) located on the opposite side of the forming wire from the head; within the head, a chamber (9) into which a flow of gas, in which said fibers are suspended, is directed, the chamber having a bottom opening (9A) closed by a screen mesh (17) which is essentially parallel to the forming wire (3) and which faces the the forming wire; and agitator members (45) inside the chamber, above the screen mesh (17), for agitating and distributing the fibers. The screen mesh (17) is a continuous mesh, movable along a closed path around the chamber, the portion of the mesh parallel to and facing the forming wire moving along a path which is essentially parallel to the forming wire. Additionally, the agitator members comprise a plurality of rotating shafts (47) which are parallel to each other and orthogonal to the direction of advance (f3) of the forming wire.

Abstract: A pneumatic spring-vibration damper unit is provided for absorbing shocks on wheels and chassis parts of motor vehicles. A variable air chamber is delimited by a rolling bellows which is disposed between a first subassembly that is fixed to the vehicle body and is provided with a vibration damper system and a second subassembly that is fixed to the vehicle chassis and is movable therewith. A piston rod connects the first subassembly located at the vehicle body end and the second subassembly located at the chassis end and whose free end located at the vehicle body end is accommodated inside a cylinder tube of the vibration damper system so as to be longitudinally movable by means of a piston. The piston rod (8) is guided within the cylinder tube (6) of the vibration damper system (2) so as to be longitudinally movable with the aid of a drag bearing arrangement (13).

Abstract: A quick connection system between an anesthesia respiration system and an absorber has a gas-tight connection between the anesthesia respiration system and the absorber. The absorber (1) has a concentrically arranged gas inlet opening (8) and a gas outlet opening (9) on its front side (4) for this purpose, as well as a guide plate (3) that can be pushed into an absorber mount at the anesthesia respiration system. Centering notches (11, 12), which engage a centering pin at the absorber mount, are provided at the guide plate (3) in the direction of pushing in.

Abstract: A simple and reliable process for activating a medical instrument, for example, one containing an anesthetic agent- or drug-dispensing unit (23) as well as a respirator drive (24) for respirating a patient is provided. The medical instrument is switched on, and a sensor (20) for detecting biometric features of a user, which is connected to or communicates with the medical instrument, is activated by the switching on, so that the individual biometric features of a certain user are detected. Te detected individual biometric features of the certain user are compared with the biometric features of at least one user within a preset time period. The medical instrument is released for the operation by the certain user only in case of agreement between the detected individual biometric features of the certain user and biometric features of at least one user, which were entered in the memory in advance.

Abstract: An intake housing for axial fluid flow engines, especially for axial-flow compressors, is proposed. The intake housing comprises an intake shaft (1) with a radial inlet (4) on one side and with an axial, rotationally symmetrical inlet cone (5), which forms an axial flow part (2) together with a jacket (6) protruding into the intake shaft (1) with an inlet edge (7). The axial flow part (2) is in connection with the inlet cross section of the fluid flow engine. The inlet edge (7) of the jacket (6) is connected with an annular diaphragm (9), which is directed at right angles to the axis (10) of the axial flow part (2). Furthermore, the diaphragm (9) is arranged mirror symmetrically at right angles to the axis (10) of the axial flow part (2) and asymmetrically in relation to the axis (10) of the axial flow part (2).