Abstract: A method for determining the concentration of an element in a material includes irradiating the material with an X-ray beam having a continuum in the area of an absorption edge of the element to be measured. The intensity of the transmitted X-ray beam is measured with an energy dispersive sensor. The intensity of the transmitted X-ray beam in an energy interval above the absorption edge and in an energy interval below the absorption edge is determined. The concentration of the element is computed on the basis of said intensities.

Abstract: A hinged U-shaped battery-powered miniature wireless headset, is worn as an earring or a pair of earrings. The earset communicates with a phone or other host over a bidirectional wireless communication link allowing hands-free operation. The earset has a front and rear housings electrically and mechanically connected using a hinge, the housings containing an electronics module, a speaker assembly, a microphone assembly, an antenna, a battery, user interface devices such as a switch and LEDs, and an attachment employing either a clamp or a pierced earring post with clutch. The device is attached to the lobe of the wearer's ear. The user positions the speaker, or speaker tube, inside at the entrance to the ear canal. One microphone is mounted to point toward the user's mouth and another microphone may be positioned to receive ambient sound for signal processing to improve quality of the outgoing and/or incoming audio stream.

Abstract: A method for determining the concentration of an element in a material includes irradiating the material with an X-ray beam having a continuum in the area of an absorption edge of the element to be measured. The intensity of the transmitted X-ray beam is measured with an energy dispersive sensor. The intensity of the transmitted X-ray beam in an energy interval above the absorption edge and in an energy interval below the absorption edge is determined. The concentration of the element is computed on the basis of said intensities.

Abstract: A method for the online determination of the ash content of a substance conveyed on a conveying device, includes a first measurement for determining the mass per unit area of the substance and a second measurement for determining the mean atomic number of the atoms present in the substance. An additional X-ray fluorescence measurement is carried out.

Abstract: A device for the online determination of the contents of a substance having a gamma-radiating isotope, which includes at least one detector, which measures the natural gamma radiation of said isotope. In order to be able to easily calibrate the device, a measurement is carried out at the same location for determining the surface dimensions of the substance within the detection region of the detector or of a representative partial region.

Abstract: A method for the online determination of the ash content of a substance conveyed on a conveying device, includes a first measurement for determining the mass per unit area of the substance and a second measurement for determining the mean atomic number of the atoms present in the substance. An additional X-ray fluorescence measurement is carried out.

Abstract: A device for the online determination of the contents of a substance having a gamma-radiating isotope, which includes at least one detector, which measures the natural gamma radiation of said isotope. In order to be able to easily calibrate the device, a measurement is carried out at the same location for determining the surface dimensions of the substance within the detection region of the detector or of a representative partial region.

Abstract: An online analysis device, including a feed conveyor for supplying material, an X-ray tube, having an X-ray beam directed toward a measuring range on a feed conveyor, a control unit for actuating the X-ray tube, an X-ray detector that measures the radiation that interacts with, or is emitted by, the material, and a material detector for detecting material in the measuring range and generating a signal dependent thereon. To omit a mechanical shutter without reducing the service life of the tube, the material detector is connected to the control device, which controls the X-ray tube in dependence on the signal from the material detector in one of two states, where the heating current for the X-ray tube has the same order of magnitude in both states and the acceleration voltage in the first state is 5 kV to 100 kV and in the second state is less than 10 kV.

Abstract: Described is an element analysis device, which can be used to obtain precise measurements even under unfavorable environmental conditions. For this, the device is provided with a transporting means with a measuring region (14) for transporting the substance (S) to be measured, an excitation source with an exit window located in a first case (22) and an X-ray fluorescence detector (30) that is directed toward the measuring region (14), as well as an entrance window (34) that is located in a second case (32). To minimize the air absorption and prevent dust and dirt from being deposited, a tube (40, 50) extends from the entrance window (34) and/or the exit window (24) in the direction of the measuring region, which tube is essentially tightly connected to the respective case (22, 32) and is open at the end facing the measuring region and is provided with a connection (44, 54) for feeding a flushing gas into the tube (FIG. 1).

Abstract: Process and device for fast or on-line determination of the components of a two-component or multiple-component system in which the elements which constitute the individual components differ by their atomic number. The following steps are carried out: the surface of the substance is irradiated with polychromatic X-ray or monochromatic gamma radiation, the X-ray radiation exhibiting in the energy range from 1 to 30 keV one or more peaks in the continuum. The spectrum of the radiation backscattered and emitted by the substance is measured in an energy range from 1 to 30 keV with a resolution of at least 250 eV. The spectrum is analysed in that at least the intensities of the elastically backscattered and inelastically backscattered peaks are separately determined and at least some Ka or La fluorescence peaks in the energy range from 1 to 30 keV are used in order to compensate for the influence of a fluctuating elemental composition within a component.

Abstract: Process and device for fast or on-line determination of the components of a two-component or multiple-component system in which the elements which constitute the individual components differ by their atomic number. The following steps are carried out: the surface of the substance is irradiated with polychromatic X-ray or monochromatic gamma radiation, the X-ray radiation exhibiting in the energy range from 1 to 30 keV one or more peaks in the continuum. The spectrum of the radiation backscattered and emitted by the substance is measured in an energy range from 1 to 30 keV with a resolution of at least 250 eV. The spectrum is analysed in that at least the intensities of the elastically backscattered and inelastically backscattered peaks are separately determined and at least some K? or L? fluorescence peaks in the energy range from 1 to 30 keV are used in order to compensate for the influence of a fluctuating elemental composition within a component.

Abstract: Described is an element analysis device, which can be used to obtain precise measurements even under unfavorable environmental conditions. For this, the device is provided with a transporting means with a measuring region (14) for transporting the substance (S) to be measured, an excitation source with an exit window located in a first case (22) and an X-ray fluorescence detector (30) that is directed toward the measuring region (14), as well as an entrance window (34) that is located in a second case (32). To minimize the air absorption and prevent dust and dirt from being deposited, a tube (40, 50) extends from the entrance window (34) and/or the exit window (24) in the direction of the measuring region, which tube is essentially tightly connected to the respective case (22, 32) and is open at the end facing the measuring region and is provided with a connection (44, 54) for feeding a flushing gas into the tube (FIG. 1).

Abstract: An online analysis device, comprising a feed conveyor for supplying the material to be analyzed, a X-ray tube (20), for which the X-ray beam is directed toward a measuring region (B) on the feed conveyor, a control unit (30) for actuating the X-ray tube, a X-ray detector (40) which measures the X-ray radiation that interacts with the material, or the radiation emitted by this material, and a material detector for detecting whether material is present in the measuring region, or is supplied thereto, and which generates a signal dependent thereon.

Abstract: A method for performing an in-service software upgrade to a data router follows steps of (a) providing a source node hosting an upgrade software package; (b) causing an upgrade command to be executed; (c) establishing, as a result of the upgrade command, a network session between the data router and the source node; (d) receiving the upgrade software at the router; (e) copying and distributing, within the router, the upgrade software to designated components slated for upgrade; (f) designating one or more components in the router as backups for each component to be upgraded; (g) backing up services and software running on each target element to be upgraded to designated backup element or elements while upgrade proceeds for the target element; (h) causing a switchover at the target element to the new software; and (i) repeating steps (g) and (h) until all the components slated for upgrade are upgraded.

Abstract: A method for performing an in-service software upgrade to a data router follows steps of (a) providing a source node hosting an upgrade software package; (b) causing an upgrade command to be executed; (c) establishing, as a result of the upgrade command, a network session between the data router and the source node; (d) receiving the upgrade software at the router; (e) copying and distributing, within the router, the upgrade software to designated components slated for upgrade; (f) designating one or more components in the router as backups for each component to be upgraded; (g) backing up services and software running on each target element to be upgraded to designated backup element or elements while upgrade proceeds for the target element; (h) causing a switchover at the target element to the new software; and (i) repeating steps (g) and (h) until all the components slated for upgrade are upgraded.

Abstract: A method for performing an in-service software upgrade to a data router follows steps of (a) providing a source node hosting an upgrade software package; (b) causing an upgrade command to be executed; (c) establishing, as a result of the upgrade command, a network session between the data router and the source node; (d) receiving the upgrade software at the router; (e) copying and distributing, within the router, the upgrade software to designated components slated for upgrade; (f) designating one or more components in the router as backups for each component to be upgraded; (g) backing up services and software running on each target element to be upgraded to designated backup element or elements while upgrade proceeds for the target element; (h) causing a switchover at the target element to the new software; and (i) repeating steps (g) and (h) until all the components slated for upgrade are upgraded.

Abstract: A method for performing an in-service software upgrade to a data router follows steps of (a) providing a source node hosting an upgrade software package; (b) causing an upgrade command to be executed; (c) establishing, as a result of the upgrade command, a network session between the data router and the source node; (d) receiving the upgrade software at the router; (e) copying and distributing, within the router, the upgrade software to designated components slated for upgrade; (f) designating one or more components in the router as backups for each component to be upgraded; (g) backing up services and software running on each target element to be upgraded to designated backup element or elements while upgrade proceeds for the target element; (h) causing a switchover at the target element to the new software; and (i) repeating steps (g) and (h) until all the components slated for upgrade are upgraded.

Abstract: A leak-free drinking beaker comprises a container as well as a lid closing the container, a drink opening which opens into the interior of the container, and a valve extending over the drink opening, which valve is held in the closed position under a certain pretension and can be released against said pretension under the influence of a pressure difference. The valve is a double-acting non-return valve and comprises a flexible valve element and two separate valve seats, the valve element and one of the valve seats has a blocking action in a direction opposed to the direction in which the valve element has a blocking action with the other valve seat.

Abstract: A device for determining the material parameters, in particular the water content, of a substance in a dielectric medium conducted through a pipeline, the device including a waveguide of a microwave system at least partially enclosing the pipeline. Transmission or reflection of microwave radiation in the waveguide is evaluated continuously or in cycles. Continuous measurement of such media, in particular liquid media, can be effected and in particular can be made automatically without requiring steps for sample taking and performance of the measuring process per se.

Abstract: Absorber elements for reducing electromagnetic leakage radiation, in particular in the vicinity of horn antennas, are in the form of ribs with a roof- or wedge-shaped cross section arranged such that the angle enclosed by lateral surfaces of the absorber elements is less than 90.degree., so that at least the leakage radiation impinging in general parallel to the center plane of the absorber elements arrives at a large angle of incidence, i.e. glancingly. In particular, if the angle of incidence approximately corresponds to the Brewster angle, the result is an almost complete absorption of the corresponding polarization components of the leakage radiation. The absorption effect can be further optimized by proper selection of the configuration of the roof- or wedge-shaped absorber elements.