Abstract: A compensation circuit for a digital/analogue converter, which is clocked by a clock signal comprising a jitter and converts a digital input data signal into an analogue output data signal comprising a jitter error due to said jitter, comprises a measurement circuit for measuring the jitter and a modelling circuit for generating a digital modelled jitter error signal which simulates the jitter error dependent on the measured jitter and the digital input data signal, wherein the digital modelled jitter error signal is subtracted from the digital input data signal.

Abstract: A compensation circuit for a digital/analogue converter, which is clocked by a clock signal comprising a jitter and converts a digital input data signal into an analogue output data signal comprising a jitter error due to said jitter, comprises a measurement circuit for measuring the jitter and a modelling circuit for generating a digital modelled jitter error signal which simulates the jitter error dependent on the measured jitter and the digital input data signal, wherein the digital modelled jitter error signal is subtracted from the digital input data signal.

Abstract: A compact door check of modular design for a vehicle door is described that can be integrated in the door hinge and mated with many types of hinges and door assemblies. The door check according to the invention is includes a housing affixed to a first half of the door hinge, a shaft extending through the housing and connecting the other half of the door hinge to the first half to allow the first half to rotate about the shaft, and a detent mechanisms defining a plurality of detent positions of the door hinge. The detent mechanism is enclosed in the housing so as to be sealed against the environment to prevent contaminants and debris from affecting the operation of the door check.

Abstract: A phospholipid composition has a phosphatidylcholine and lysophosphatidylcholine content of at least 80% by weight and is substantially free from additives. The phospholipid composition is in granular form with the particle size between 18 mm and 0.07 mm. The phospholipid composition may be stored at low temperatures for extended periods of time.

Abstract: A phospholipid composition exhibiting a phosphatidylcholine content of at least 80% by weight is described. Whereby this pulverized or granulated composition is free from additives.In order to prepare such a phospholipid composition the phospholipid starting material is comminuted after cooling to a temperature below-50.degree. C.

Abstract: The invention is related to a process for preparing highly pure Ebselen (2-phenyl-1.

Abstract: A process for isolating a phosphatidylcholine from vegetable lipid mixtures wherein the lipid mixture is dissolved in a solvent mixture of a low boiling petroleum ether fraction (40.degree.-80.degree. C.), a lower C.sub.1 -C.sub.4 -alkanol and water, the solution is introduced into a column filled with silica gel at a temperature in the range of 20.degree. to 50.degree. C., the elution is carried out at that temperature with the same solvent mixture and the main run is collected and a pure phosphatidylcholine free of other phospholipids present in the starting vegetable lipid mixture is isolated therefrom in a usual manner.

Abstract: A process for isolating phosphatidylcholine free of lysophospholipid from egg powder wherein the egg powder is treated with a solvent mixture of a low boiling petroleum ether fraction (40.degree. to 80.degree. C.), a lower C.sub.1 -C.sub.4 -alkanol and water, the undissolved material is separated from the solution phase, the solution phase is given onto a column filled with silica gel at a temperature in the range from 20.degree. to 50.degree. C., the elution is carried out at that temperature with the same solvent mixture, the main run is collected and the dissolved phosphatidylcholine is isolated therefrom as usual.

Abstract: The invention is related to a new process for producing imidazolylthiophenaldehydes of the general formula I ##STR1##

Abstract: An improved method is provided for the preparation of phosphatidyl choline having a low oil content. An alcohol and oil-containing phosphatide solution is admixed with an amount of water sufficient to cause oil present therein to separate from the solution. The oil is removed from the solution and a phosphatidyl choline fraction recovered which is substantially oil-free.

Abstract: The present invention is related to a new process for the separation of oil and/or phosphatidylethanolamine from alcohol soluble phosphatidylcholine products containing the same thus producing, by chromatography on silicic acid gel in a lower alkanol containing 1 to 4 carbon atoms as solvent and/or eluant, a phosphatidylcholine product containing oils and/or phosphatidylethanolamine in a definite diminished amount.

Abstract: The present invention is related to a new process for the separation of acylated phospholipids, in particular of acylated phosphatidylethanolamine and possibly oils from phosphatidylcholine products containing the same, by chromatography on silicic acid gel in a lower alkanol containing 1 to 4 carbon atoms as solvent and/or eluant yielding into highly purified phoshatidylcholine.

Abstract: The present invention is related to a new process for the separation of oil and/or phosphatidylethanolamine from alcohol soluble phosphatidylcholine products containing the same thus producing a highly purified phosphatidylcholine, by chromatography on silicic acid gel in a lower alkanol containing 1 to 4 carbon atoms as solvent and/or eluant.

Abstract: Arrangement for monitoring the temperature of a moving component: a stationary measuring device including an oscillator; a sensor on the moving component is moved past the measuring device; the sensor includes a coil that is outside the moving component and a cold conductor that senses temperature and changes its impedance in response to temperature changes and that is inside the component and electrically connected to the coil, whereby the coil is effectively short circuited or effectively open on the different sides of a preset temperature level sensed by the cold conductor, and the effective condition of the coil is sensed by the measuring device; a capacitor may be placed in series with the coil; the coil is helical and is in a plane; the coil and the cold conductor and the connecting leads are held in place by an insulating substance; specifics of the sensor body configuration are disclosed.