摘要:
The shutters (2) in an X-ray device which include at least a radiation source (1), a diaphragm device (8) with shutters (2) and a recording (3) and image processing unit (4), are provided with hole and/or edge patterns (11-14) which reproduce non-anatomical patterns in the radiation image; the shutter edges (15) are detected in the radiation image in the image processing unit on the basis of such patterns, so that only the directly irradiated part of the patient is displayed.
摘要:
In a variable valve timing mechanism for an internal combustion engine with exhaust valves operated by an exhaust camshaft and intake valves operated by two intake camshafts of which one is driven by the exhaust camshaft by way of a phase controller disposed at one end of one of the intake camshafts and controls the valve openings time and the other is driven by the one intake camshaft by way of a coupler drive which is disposed at the opposite end of the one intake camshaft and controls the valve closing times.
摘要:
A process for adjusting the boost pressure in an internal-combustion engine, supercharged by an exhaust-gas turbocharger with adjustable turbine diffuser, to a predetermined desired boost-pressure value dependent on the operating point. To improve the efficiency of the internal-combustion engine in the non-steady-state mode, especially after a positive load change out of low load and speed ranges, or, after a positive load change during the non-stead-state mode, below a predetermined threshold value for the exhaust-gas counterpressure upstream of the turbine the boost pressure is regulated according to a first characteristic corresponding to the instantaneous true deviation of the actual boost-pressure value from the desired boost-pressure value. After this threshold value has been exceeded, the exhaust-gas counterpressure is regulated predetermining hypothetical control deviations for the boost-pressure control circuit according to a special characteristic.
摘要:
In a device for adjusting a movable electro-acoustic sound transducer, an optical duct is connected to the sound transducer which only allows an object, such as a display table or a data display unit, to be viewed completely in one specific position. This position is unambiguously reproducible and so is the position of the sound transducer or microphone relative to the mouth of the speaker. The optical duct may comprise diaphragms or a tube, possibly with intermediate walls, or a phase amplitude grating.The object may be a display unit and the device further comprises a device for generating variable data on the display. If used for speaker identification, the variable data generator projects consecutive instructions on the display so that, the speech recognition process is controlled automatically. The speaker to be identified is then required to keep his mouth in the correct position relative to the microphone.
摘要:
The invention relates to a piste grooming vehicle having at least one piste grooming device for preparing a piste and to a method for operating such a piste grooming vehicle. Use in grooming ski pistes or snowboard pistes.
摘要:
A mobile communications device is disclosed as having a patch antenna, which has defined therein at least two slots each having two or more parts. The at least two slots may include an L-shaped slot and a C-shaped slot, wherein the slots can be open or closed. The L-shaped slot may be an open-slot projecting into the patch antenna from the edge. Ground and signal connections may be at the edge of the patch on either side of the L-shaped slot. The C-shaped slot may be nested within the L-shaped slot.
摘要:
A mobile wireless communications device may include a portable housing and wireless transceiver circuitry carried by the portable housing. The mobile wireless communications device may also include an antenna carried by the portable housing and coupled to the wireless transceiver circuitry, and a light source carried by the portable housing. The device may further include a keyboard assembly carried by the portable housing including a light guide coupled to the light source and having input key receiving openings therein, and a mask carried by the light guide and having input key receiving openings. The mask may include spaced apart electrically conductive elongate members positioned relative to the antenna to reduce a Specific Absorption Rate value for the mobile wireless communications device.
摘要:
A computer-implemented method comprises two interleaving processes, namely a data collection process and a data display process. In the data collection process at least one first search query from a first mobile device (1) and a first location indicator indicative of a location of the first mobile device are received and transmitted to at least one database (4), the database adapted for storing a plurality of search queries received from a plurality of mobile devices (1). In a data display process a second location indicator indicative of a location of a second mobile device (2) is received and a request to the database (4) is transmitted. The process includes the step of associating the second location indicator with location-related information stored in the database and transmitting at least one second search query having assigned location-related information corresponding to the second location indicator from the database (4) to the second mobile device (2) and proactively presenting the at least one second search query on or at the second mobile device without the user of the second mobile device being proactive. The second search query is transmitted to a search engine (6) and at least one result received from the search engine is presented on or at the second mobile device (2). The same method may be applied with respect to web addresses and displaying web pages instead of search queries and corresponding result.
摘要:
The invention relates to an article conveyor, in particular for airline baggage, comprising a kind of rail track with individual carriers which are connected to one another and, for receiving an article in each case, are provided with a transverse conveyor by means of which the articles resting on the carrier can be moved, in a motor-driven manner, transversely to the transporting direction of the article conveyor. In order to prevent articles from being thrown off accidentally during transportation, in particular over curved sections, it is proposed that the transverse conveyor comprises a chain belt which is flexible in the direction of circulation, is flexurally rigid in the longitudinal direction of the article conveyor and comprises chain-belt links which are connected to one another in an articulated manner on the longitudinal sides of the chain belt and are in the form of strips or narrow plates.
摘要:
A hydropneumatic suspension having at least one suspension cylinder (10) and at least one hydraulic accumulator configured as a suspension accumulator (18) has a pilot-actuated valve (20) for opening or blocking a fluid-carrying connection between the suspension cylinder (10) and the suspension accumulator (18). The pilot-actuated valve (20) can be moved into the blocked position by a hydraulic actuating assembly (22). The hydraulic actuating assembly (22) taps the fluid pressure between suspension accumulator (18) and the suspension cylinder (10), and forwards it by a switching valve (24) to an operating side (26) of the pilot-actuated valve (20) through a pilot-actuated line (38). Another proportional valve (50), or such valve connected to the respective associated pilot-actuated line (38), can be between one switching valve (24) and the pilot-actuated valve (20).