Abstract: Rubber-free copolymers of unsaturated monomers selected from the group comprising styrenes and vinyl cyanides are disclosed. The copolymers that contain 65 to 80 wt. %, of styrene and 20 to 35 wt. % of acrylonitrile are characterized in their low content of residual monomers and improved physical properties. Also disclosed are a process and a device for the preparation of these copolymers.

Abstract: The invention relates to a method and a device for operating a diesel motor using a fuel that comprises vegetable oils or recycled vegetable oils. The fuel is withdrawn from a tank, filtered through a fuel filter and injected into the cylinders through injection nozzles by means of an injection pump. Any excess fuel is returned. The fuel is transferred from the tank via pressure-resistant fibre filters by means of a forcing pump to a storage reservoir, where it is irradiated ultrasonically. The fuel is sucked out of the storage reservoir by the injection pump and excess fuel is returned to the storage reservoir.

Abstract: Rubber-free copolymers of unsaturated monomers selected from the group comprising styrenes and vinyl cyanides containing 65 wt. % to 80 wt. %, preferably 68 wt. % to 77 wt. % of styrene and 20 wt. % to 35 wt. %, preferably 23 wt. % to 32 wt. % of acrylonitrile, and a process and a device for the preparation thereof are set out and described. As a result of a gentle, two-stage evaporative treatment, the copolymers have a low residual monomer content, namely less than 20 ppm, preferably 10 ppm of acrylonitrile and less than 200 ppm, preferably 100 ppm of styrene and less than 200 ppm, preferably 100 ppm of ethyl benzene. To this end, solutions of the product are brought to concentrations greater than/equal to 99.8% in a first step of gentle concentration by introducing energy with simultaneous evaporation, and further monomers are removed in a second step without intermediate heating.

Abstract: Contact-lens disinfectant containing(a) magnesium monoperphthalate and(b) sodium cumenesulphonate,(c) sodium alkylbenzenesulphonate,(d) isotridecanol ethoxylate and(e) methylhydroxyethylcellulose,and packaging and a process for the preparation thereof.

Abstract: When producing a single-crystal bulk ZnSe from a melt by a high-pressure melt technique in a vertical Bridgman (VB) furnace or a vertical gradient freezing (VGF) furnace, preliminarily grown polycrystalline ZnSe (which may be a crystal solely composed of twins) is used as a seed and, after melting the starting ZnSe material and part of the seed, a twin-free ZnSe bulk crystal is grown on the seed; alternatively, polycrystalline ZnSe is grown at the tip of the growing crystal and part of it is melted, followed by growing a single crystal on that polycrystal to produce a twin-free, high-purity ZnSe bulk crystal. In either way, the process assures that twin-free single crystals of bulk ZnSe can be produced with good reproducibility without adding dopants or using any materials that are difficult to obtain.

Abstract: A quasi-synchronous information (clocking, data, control signals) transfer between a master unit A and at least one neighbor unit B offers the advantage that one transfer can occur every cycle where any interface delays are tolerated. When the master unit A sends its internal clock along with data and/or control signals to its neighbor unit B, the last named unit receives this clock and derives any and all locally required clocks from this clock. This keeps unit B exactly at the same frequency as unit A, although a phase shift occurs. Unit B also sends its internal clock along with data and/or control signals to unit A. When the clock signals arrive back at unit A, they will have exactly the same frequency as the internal clock of unit A but also an additional phase shift. Compensation of the overall phase shift will be done by a phase alignment means to which all signals are sent on their way to unit A.

Abstract: In computer systems deliberate initializations/resets of the processor latches which represent the internal processor states are necessary to erase only such information which is not required for a subsequent operation, e.g., processing/logging error data, prior to a processor start. One or more reset areas are defined which are initialized/reset in a staggered mode, where in each area a group of latches is assembled which have to be initialized/reset depending on the cause, e.g., power-on, for such a system initialization/reset. The latches within a reset area are connected to form shift registers which are initialized/reset by propagating a binary zero through all latches of the area(s) to be reset.

Abstract: A clock generator system is provided which includes several clock generators each containing a feedback shift register. A parity bit is calculated over the output of all shift registers and compared to an expected value. Additionally, a parity bit is calculated for each shift register, over the bits stored in the shift register, the number of ONE bits in a shift register being constant. A parity error at the output of the shift registers in combination with an error in the additional parity bit allows the correction of the erroneous clock pulse generated by the shift register in error.

Abstract: There is a core engine having a turbine section which is drivingly connected to a single propeller through a planetary transmission. The core engine provides a substantially continuous, axially aligned gaseous flow path from the inlet to the discharge nozzle, with the planetary drive being spaced radially from the flow path. In one configuration, the planetary transmission is spaced circumferentially around the flow path, while in another configuration, it is positioned inside of the annular flow path. The engine is ranged in both a tractor and a pusher configuration.

Abstract: A method of measuring a solid matter mass flow during conveying of solid matter-gas suspensions in tubular conduits, particularly during conveying in a dense stream with high pressure, comprises the steps of changing in a pulse mode a solid matter concentration of a solid matter-gas suspension at one location of the conduit through which the suspension flows, continuously measuring a solid matter concentration of a solid matter-gas suspension or a value corresponding thereto at two measuring locations downstream of the first-mentioned changing location and spaced from one another in the conduit, determining a difference between time points at which a difference of the solid matter concentration or the corresponding value is indicated after one another at the measuring locations downstream of the first-mentioned changing location and spaced from one another, determining a per-unit-time average value of the solid matter concentration of the solid matter-gas suspension in a conduit portion corresponding to the m

Abstract: Individual blocks with the register elements provided on one of their sides are fitted to corresponding register pins on a strip-like mounting device and are optionally affixed with small double adhesive tape portions. The mounting device is then fitted to the printing roller, where it engages in bores with corresponding pin-like alignment means. The printing blocks are affixed in conventional manner with double adhesive tape and the mounting device is removed again. In other embodiments, the register elements can also comprise projections on the block and corresponding recesses on the mounting device.

Abstract: A priority control circuit for establishing connections between a data handling system element and a number of subsystems wherein request signals from subsystems are scanned and granted service in a sequence which is determined by their position in a priority ranking order. The scanner returns to the beginning of the order immediately after a request has been granted, the subsystem just serviced being bypassed in the next scan until all of the remaining request signals have been processed. Each time a request signal is encountered and service granted, the scanner returns to the beginning of the order, a new scan is begun and all prior requests serviced are bypassed. In the absence of any other requests or after all of the request signals have been serviced the bypassed subsystems are unlocked and a scan of all requests is begun.

Abstract: An arrangement for the dynamic direct display of pulses in the nanosecond range operates without oscilloscopes or other special display apparatus. To display pulse timing or amplitude characteristics, a pulse sequence is applied to an equidistant tapped delay line, the output from each tap being connected to a bistable storage element with an indicator lamp in the output. A plurality of indicator lamps are arranged in the form of a matrix. If a pulse occurs on a tap during a sampling interval, the associated indicator lamp is turned on. The sequence and identity of the turned on indicators is indicative of the pulse spacing and the pulse width in the pulse sequence.