Abstract: Electrical device, in particular a radio device, with an energy storage device. The invention relates to an electrical device, in particular a radio device, with an energy storage device (6) which serves as a current supply. To ensure a high flexibitility in view of the possible use of different energy storage devices with different discharging behaviors, a circuit arrangement (14) is provided for converting a voltage (U.sub.E) supplied by the energy storage device into at least one supply voltage (U.sub.out) which serves for supplying circuits of the electrical device, which is substantially constant, and which is preprogrammable. The circuit arrangement (14) in a first switching state reduces a voltage (U.sub.E) supplied by the energy storage device (6) to the supply voltage (U.sub.out), acting as a downconverter, and in a second switching state steps up a voltage (U.sub.E) supplied by the energy storage device (6) to the supply voltage (U.sub.out), acting as an upconverter.

Abstract: Electron-optical, rotationally-symmetrical lenses inevitably exhibit spherical and chromatic aberration which usually determine the limit of the resolution. Such lens aberrations cannot be eliminated by compensation by means of rotationally-symmetrical fields. In order to enhance the resolution nevertheless, it has already been proposed to reduce said lens aberrations by means of a Wien-type corrector. Such a configuration must satisfy very severe requirements as regards manufacturing precision, mechanical and electrical stability and alignment of the various elements relative to one another. Consequently, it is extremely difficult to perform readjustment of the electron-optical apparatus by means of such a corrector in the case of changing circumstances. According to the invention there is provided a combination of a correction unit and a doublet to be corrected.

Abstract: The present invention relates to new crystalline zeolite SSZ-43 prepared using a substituted piperidinium or decahydroquinolinium cation templating agent.

Abstract: A picture display device having a flat vacuum envelope which is provided with a transparent face plate with a luminescent screen and with a rear wall, which display device has an electron supply section with an electron source for emitting electron currents in a direction parallel to the face plate, and an active selection electrode section with first, preselection, electrodes and second, fine-selection, electrodes, located closer to the screen, for directing each electron current towards desired pixels on the luminescent screen. The fine-selection electrodes are divided into groups and corresponding fine-selection electrodes of at least two groups are interconnected in a series or parallel arrangement in such a way that the technology of providing these electrodes is as simple as possible and/or the possible fine-selection electrode patterns are such that the number of required selection drivers can be reduced considerably.

Abstract: The electric lamp has an information-displaying external coating (3) which is provided on the lamp envelope. The coating (3) comprises a metal oxide as the pigment, which is dispersed in a polysiloxane matrix which may contain lithium. The coating (3) is obtained by using a marking ink, which may be applied by means of an ink jet printing process.

Abstract: A method of manufacturing a semiconductor device, in which trenches (7) are formed in a surface (2) of a silicon body (1), which trenches are filled with silicon oxide (11). The filled trenches are used as field-oxide regions (12) in integrated circuits. The silicon oxide is deposited from a gas phase and is subsequently densified by means of a thermal treatment in an NO or N.sub.2 O-containing atmosphere. The deposited silicon oxide can be densified in a very short period of time, and, in addition, the thermal treatment does not cause crystal defects. The method can suitably be used for "single wafer processing".

Abstract: A rotary valve for selectively inserting and removing a slide loop from the sound path of a musical instrument is disclosed. The valve includes a cylindrical rotor housed in a cylindrical casing coupled to the instrument's lead pipe, main bore and slide loop leading and trailing ends. The rotor has two passages extending through it. The first passage is generally "Y" shaped with two leading ends and a trailing end, while the second passage is generally straight having a leading end and a trailing end. In a first valve position, the first leading end and the trailing end of the "Y" shaped rotor passage coaxially align with the instrument's lead pipe and main bore, respectively, providing an air pathway excluding the additional slide loop.

Abstract: An optical recording medium has a phase-change recording layer embedded in a stack of thin layers arranged on a substrate. At least one of the dielectric layers adjacent to the recording layer comprises a carbide. The carbide layer is separated from the substrate and/or from a reflecting layer in the stack by a dielectric layer not containing a carbide. The thickness of the carbide layer either lies in a range from 2 to 8 nm or is substantially equal to the thickness of the adjacent dielectric layer.

Abstract: An X-ray examination apparatus (1) is provided with an X-ray source (2) and an X-ray detector (5) wherebetween there is arranged an X-ray filter (6) which includes filter elements (7) whose X-ray absorptivity can be adjusted by controlling the quantity of X-ray absorbing liquid (31) in individual filter elements (7). The filter elements (7) are formed by spaces between electrically conductive tracks (9) provided on parallel plates (8). The parallel plates are arranged in a reservoir (31) for the X-ray absorbing liquid. The liquid level in the vicinity of an electrically conductive track is controlled on the basis of an electric voltage applied to the relevant electrically conductive track (9).

Abstract: One aspect of the present invention is a purified human GMP synthetase and a method of purifying it from naturally occurring sources. Another aspect of the present invention is a recombinant human GMP synthetase as well as DNA sequences coding for human GMP synthetase, expression vectors comprising such a coding sequence, and host cells transformed with these expression vectors capable of producing human GMP synthetase. Also forming part of this invention is a recombinant process for the production of GMP synthetase. Further provided is a method of purifying GMP synthetase from natural or recombinant sources. Other aspects of the invention include antibodies to human GMP synthetase and the use of such antibodies to assay for human GMP synthetase. Another aspect of this invention is the use of purified naturally occurring human GMP synthetase or recombinant human GMP synthetase to identify inhibitors of GMP synthetase activity.

Abstract: Receiver having an RF input for applying an RF input carrier-modulated modulation signal thereto, which receiver is coupled to a multiplier circuit and to a phase-locked loop (PLL) with a signal path incorporating a phase detector, a loop filter, a first dc decoupling circuit and a controlled oscillator having an in-phase and a quadrature output via which local in-phase and quadrature carriers are applied to the multiplier circuit and the phase detector, respectively, and a signal generator for generating a local auxiliary pilot and a pilot detector for detecting the local auxiliary pilot, an output of which is coupled to the controlled oscillator via a low-pass filter.

Abstract: A speech signal divided into frames, each frame having a sound type, and a class is determined for each frame depending on the sound type of the frame. One of multiple filters is selected for each frame depending on the class of the frame. Each frame is filtered according to the filter selected, and the filtered frames combined to provide a filtered speech signal. The system includes filters and software.

Abstract: A circuit arrangement for operating a discharge lamp comprises a self-oscillating DC/AC converter (II) provided with a series arrangement of a first and a second switching element between a first and a second input terminal (2, 2') for connection to a DC voltage source (III). The series arrangement supplies an alternating current Ib to a load branch having output terminals for connection of the discharge lamp during nominal operation. The circuit arrangement is in addition provided with a starter circuit ST for generating a DC voltage component between the control electrode (1c') and the main electrode (1a') of the second switching element (1'). The starter circuit also include apparatus which comprise an auxiliary switch (25) that brings the first switching element (1) into a conducting state if the amplitude of the alternating current Ib is low compared with its amplitude during nominal operation.

Abstract: The electric incandescent lamp has a lamp vessel (1) in which a filament (3) is disposed substantially concentric with the longitudinal axis (2) of the lamp vessel (1). Current conductors (4) extend from the lamp vessel (1), an internal conductor (10) part of which is substantially concentrically with the axis (2) and has an end portion (11) having unround cross-sections (12). An end portion (6) of the filament (3) is wound onto the unround cross-sections (12) of a respective internal conductor (10) to constitute clamping windings (5). The lamp is of a simple construction to obtain reliably a concentrically mounted filament.

Abstract: A circuit arrangement (16) for producing a D.C. current, includes a feedback loop for producing a reference current from an output terminal (27) with a negative temperature coefficient. The feedback loop includes a current-source stage (17, 18) which feeds a current mirror stage (19, 20, 21) in response to a measuring current supplied from a current bank (24, 25, 28, 29), which also produces the output reference current. The output of the current mirror stage (19, 20, 21) drives a working impedance formed by the main current path of a transistor 22, across which a control voltage is developed which is applied to a control input (23) of the current bank (24, 25, 28, 29). The circuit arrangement is advantageously combined with a reference current source (1) arranged as a bandgap circuit for producing a reference current on an output terminal (2) with a positive temperature coefficient, by enabling the user to select a current reference with either a positive or negative temperature coefficient.

Abstract: A transmission system contains a speech coder which utilizes a pitch detector that is arranged to select a characteristic auxiliary signal portion from the signal to be coded in order to improve the quality of the pitch detection. The pitch is found by searching in the speech signal for signal portions that correspond to the characteristics auxiliary signal portion and by calculating the time difference between the respective signal portions.

Abstract: A process for recovering fissile materials such as uranium, and plutonium, and rare earth elements, from complex waste feed material, and converting the remaining wastes into a waste glass suitable for storage or disposal. The waste feed is mixed with a dissolution glass formed of lead oxide and boron oxide resulting in oxidation, dehalogenation, and dissolution of metal oxides. Carbon is added to remove lead oxide, and a boron oxide fusion melt is produced. The fusion melt is essentially devoid of organic materials and halogens, and is easily and rapidly dissolved in nitric acid. After dissolution, uranium, plutonium and rare earth elements are separated from the acid and recovered by processes such as PUREX or ion exchange. The remaining acid waste stream is vitrified to produce a waste glass suitable for storage or disposal. Potential waste feed materials include plutonium scrap and residue, miscellaneous spent nuclear fuel, and uranium fissile wastes.