摘要:
The invention relates to an efficient process and device for the decontamination of waters polluted with heavy metals, semimetals and/or radionuclides by cation exchange and electrochemical deposition of the anions.
摘要:
A drive member (1) for a water pump of the cooling-water circuit of an internal combustion engine, with a drive wheel (7) and a shaft (4) which is coupled to the water pump, is proposed. According to the invention, for the transmission of torque between the drive wheel (7) and the shaft (4), an electromagnetically actuable friction-disk clutch (9, 10, 11, 12) and a second clutch device in the form of an eddy-current clutch (14) are provided, the latter taking up the shaft (4) when the friction-disk clutch is out of engagement. Moreover, a frictional shift clutch for a drive member of this type is proposed.
摘要:
A feedback shift register for generating digital signals representing pseudo-random number sequences has n-stages and exclusive OR-circuits in the feedback logic, as well as a clock-pulse generator. To be able to generate digital signals, which are well suited for a further digital processing, the clock-pulse generator (17) is linked with the n-stages (11, 12, 13, 14, 15) of the shift register (10) via a controllable gate circuit (18), which blocks one clock pulse of 2.sup.n clock pulses (CLK) of the clock-pulse generator (17) in each case.
摘要:
Test data are inserted on the data source side into a data stream (DS) transmitted to a data receiver (5) from a data source (1) via at least one transmission section (4). A bit error function (e(n)) is obtained from the test data received. The bit error function (e(n)) is evaluated in a part by part manner to discover its periodicity, the length of the partial section evaluated at the same time being measured in such a way that it contains a plurality of bit errors (BF). The bit error function (e(n) or err(n)) is subjected to auto-correlation. The maxima (M, M1, . . . Mi) of the auto-correlation functions (AKF(m)) thus obtained are used to determine the nature of the interference (10, 11) with reference to its stochastic or deterministic nature.
摘要:
A flow of data (DS) from a data source (1) passes to a data receiver (9) via an intermediate path (5) and a transmission path (7). Before entering the transmission path (7) the flow of data (DS) is scrambled in a predetermined manner and unscrambled in the same manner on leaving the transmission path (7). A bit error function e(n) is obtained from test data (TZ) inserted into the flow of data (DS) at the data source and evaluated according to its period length (N). A bit error (BF) occurring before scrambling goes unmultiplied to the data receiver after unscrambling, whereas a bit error (BF) occurring on the transmission path (7) is multiplied by a period length (N.sub.v) specific to the descrambling. A comparison of this period length (N.sub.v) with the period length (N) of the bit error function (e(n)) makes it possible to locate the origin.
摘要:
Bodies of hyperpure semiconductor material can be reduced in size without ntamination by being subjected to shock waves. The method is preferably carried out at room temperature, so that diffusion into the interior of the semiconductor, which is induced and/or accelerated by high temperatures, is largely avoided for superficially adsorbed foreign particles. The shock waves are generated in a focal point of a semiellipsoidal reflector by electrical discharge between two electrodes.
摘要:
A method for producing a photovoltaic solar cell, including the following steps: A. texturizing a front (2) of a semiconductor substrate; B. generating a selective emitter doping on the front (2) of the semiconductor substrate by generating on the front (2) a first low-doped region (4) and a local high-doped region (3) within the first low-doped region; and C. applying at least one metal emitter contact structure to the front (2) of the semiconductor substrate, at least in the regions of local high doping, wherein, between method steps B and C, a respective silicon oxide layer (5a, 5b) is generated in a method step B1 simultaneously on the front and back of the semiconductor substrate via thermal oxidation.
摘要:
Disclosed is a spring assembly for level controlled support of a wagon body on a running gear of a vehicle, in particular of a railway vehicle, including a spring device and an actuator device, wherein the spring device takes up a first installation space, the actuator device takes up a second installation space, the spring device and the actuator device are connected to each other in a direction of action in a kinematically serial arrangement, and the actuator device is designed for at least partially compensating for a change in length of the spring device in the direction of action by a displacement at an actuator component in the direction of action, and wherein the first installation space and the second installation space overlap each other in the direction of action in an overlapping region. Also disclosed is a vehicle having such a spring assembly.
摘要:
A sealed insulating glass unit comprises two glass sheets held apart by a spacer, optionally with a sealant between the edges of the glass sheets outside the spacer. The insulating glass unit contains an electronic device, having information relating to the origin, manufacture and/or properties of the insulating glass unit capable of being read from the device by means actuated from outside the insulating glass unit. The device is embedded within the spacer or sealant so that it is concealed within the insulating glass unit.