Abstract: The invention relates to a device for the preparation of a sample to be analysed, in particular a stool sample, comprising a first container which has a first container opening and forms a receiving chamber for a suspension liquid in which the sample is at least partially contained, a second container which has a second container opening and forms a second receiving chamber, wherein the first container is at least partially receivable or received in the second receiving chamber, and a sample holder for insertion into the first container opening. The invention is characterised in that a liquid outlet is formed in the first container, and in that the first container and the second container are formed such that suspension liquid passes from the first receiving chamber into the second receiving chamber when the first container is moved out of the second receiving chamber. Furthermore, the invention relates to a method for preparing a sample to be analysed.

Abstract: Denoising seismic data can include extracting a first plurality of overlapping patches corresponding to a respective seismic data window selected from a plurality of seismic data windows, reshaping the first plurality of overlapping patches into patch vectors, and determining sparse approximations of the patch vectors based on a dictionary and a sparse coefficient vector. Denoising seismic data can also include reshaping the sparse approximations into a respective second plurality of overlapping patches, and constructing a denoised version of at least one of the plurality of seismic data windows using the respective second plurality overlapping patches.

Abstract: Determination of an impulse response at a subsurface image level can include extrapolation of an up-going pressure wavefield to a subsurface image level, extrapolation of a down-going velocity wavefield to the subsurface image level, and determination of the impulse response at the subsurface image level from a hypothetical seismic source by spectral division of the extrapolated up-going pressure wavefield by the extrapolated down-going velocity wavefield.

Abstract: Denoising seismic data can include extracting a first plurality of overlapping patches corresponding to a respective seismic data window selected from a plurality of seismic data windows, reshaping the first plurality of overlapping patches into patch vectors, and determining sparse approximations of the patch vectors based on a dictionary and a sparse coefficient vector. Denoising seismic data can also include reshaping the sparse approximations into a respective second plurality of overlapping patches, and constructing a denoised version of at least one of the plurality of seismic data windows using the respective second plurality overlapping patches.

Abstract: A valve for an aerosol container has a valve plate adapted to close an axial end of the container, a valve subassembly having at least one dispensing element, a seal ring, and a compression spring, and a valve holder containing the valve subassembly and having an axially open assembly hole through which the valve subassembly can pass. A cover closes the assembly hole and is formed with an axially throughgoing cover hole through which the dispensing element projects and with which the dispensing element forms an annular and axially extending passage. A seal ring surrounds the dispensing element and is engaged between the holder and the cover. A spring biases the dispensing element axially outward against the seal ring and presses an axial outer face of the seal ring against the axially inner face of the cover. Passages extend axially between an interior of the container and the seal ring.

Abstract: An aerosol container has a mouth centered on an axis. A plastic valve plate is fitted to and tightly attached to the mouth and has a disk formed with an outlet centered on the axis. An outlet valve is carried on the valve plate and has a housing holding a movable valve element. A rigid extension is integrally formed on the disk around the hole, projects axially into the container, and forms a cavity in which the housing of the valve is fitted. A seal is fixed in the cavity between the housing and a surface of the extension forming the cavity.

Abstract: An aerosol container comprises a can having an open end. A valve disk fitted to the open end is made of plastic and has a center part formed with a throughgoing hole defining an axis. A plurality of fingers extend axially from an inner face of the center part around the hole into the can and each have an inner end formed with a radially inwardly projecting barb spaced axially from the inner face. A dispensing valve has a tubular valve housing fitted between and gripped by the fingers and having an axially inwardly directed face on which the barbs bear axially outward. A seal is compressed axially between an outer end of the valve housing and the inner face of the disk around the hole.

Abstract: Determination of an impulse response at a subsurface image level can include extrapolation of an up-going pressure wavefield to a subsurface image level, extrapolation of a down-going velocity wavefield to the subsurface image level, and determination of the impulse response at the subsurface image level from a hypothetical seismic source by spectral division of the extrapolated up-going pressure wavefield by the extrapolated down-going velocity wavefield.

Abstract: A valve for an aerosol container has a valve plate adapted to close an axial end of the container, a valve subassembly having at least one dispensing element, a seal ring, and a compression spring, and a valve holder containing the valve subassembly and having an axially open assembly hole through which the valve subassembly can pass. A cover closes the assembly hole and is formed with an axially throughgoing cover hole through which the dispensing element projects and with which the dispensing element forms an annular and axially extending passage. A seal ring surrounds the dispensing element and is engaged between the holder and the cover. A spring biases the dispensing element axially outward against the seal ring and presses an axial outer face of the seal ring against the axially inner face of the cover. Passages extend axially between an interior of the container and the seal ring.

Abstract: An aerosol container has a mouth centered on an axis. A plastic valve plate is fitted to and tightly attached to the mouth and has a disk formed with an outlet centered on the axis. An outlet valve is carried on the valve plate and has a housing holding a movable valve element. A rigid extension is integrally formed on the disk around the hole, projects axially into the container, and forms a cavity in which the housing of the valve is fitted. A seal is fixed in the cavity between the housing and a surface of the extension forming the cavity.

Abstract: A planar probe for the coupling of ultrasonic signals to a planar component to be tested by means of water-free jet technology is provided. The planar probe includes: at least one preflow chamber; a flow chamber located downstream of at least one preflow chamber, wherein the flow chamber extends through a slot-shaped water outlet opening to a lower surface of the planar probe; a probe, wherein a lateral surface of the probe comprises emitting/receiving elements and forms an inner wall section of the flow chamber; a base body for the reception of the probe; and a sliding plate comprising the slot-shaped water outlet opening, whose planar extension along the component is larger than the planar extension of the base body along the component, wherein the planar probe is connected to the sliding plate.

Abstract: A test device for liquids of the human or animal body, comprises a tube-shaped housing, in which are disposed: an in-feed area for feeding in a prescribed quantity of a bodily fluid, a reaction area connected downstream of the in-feed area and separated from the same by at least one closed separating wall, and in which the bodily fluid is brought to a chemical reaction with at least one reagent, and an indication area connected downstream of the reaction area and separated from the same by a separating element having a defined through-hole, and in which an indication element is disposed, the bodily fluid being passed through the through-hole after reacting with the reagent. A cutting device is thereby provided by means of which the separating wall can be opened or destroyed.

Abstract: A planar probe for the coupling of ultrasonic signals to a planar component to be tested by means of water-free jet technology is provided. The planar probe includes: at least one preflow chamber; a flow chamber located downstream of at least one preflow chamber, wherein the flow chamber extends through a slot-shaped water outlet opening to a lower surface of the planar probe; a probe, wherein a lateral surface of the probe comprises emitting/receiving elements and forms an inner wall section of the flow chamber; a base body for the reception of the probe; and a sliding plate comprising the slot-shaped water outlet opening, whose planar extension along the component is larger than the planar extension of the base body along the component, wherein the planar probe is connected to the sliding plate.

Abstract: The invention relates to a device (68) and a method for the non-destructive testing of planar objects (70) such as thick or thin metal sheets using ultrasound in different focal zones, said device comprising one or more independently controllable probes (PK1-PKn), and to the use of matrix phased array probes. To achieve uniform sensitivity over a wide thickness range, the probes (PK1-PKn) are designed as 2-dimensional phased array probes (PK2-PKn) and are located in rows offset in relation to one another. The sum of the number and length of the individual probes (PK1, PKn) corresponds to the width of the material to be tested.