Abstract: According to various embodiments, a circuit for determining the frequency of a signal is described, comprising an input configured to receive an analog input signal, an analog to digital converter configured to convert the analog input signal to a digital input signal, a digital mixer configured to generate a mixing result signal by mixing the digital input signal with a single bit binary signal having a reference frequency, a low pass filter configured to generate a filtered signal by filtering the mixing result signal, a measuring circuit configured to measure the period of the filtered signal and an output configured to output a value differing from the frequency of the single bit binary signal by the inverse of the measured period as the frequency to be determined.

Abstract: In known methods for producing a glass component, a void-containing intermediate product containing doped or non-doped SiO2 is inserted into a sheath tube composed of glass, which has a longitudinal axis and an inner bore, and is thermally treated therein. In order to subject the intermediate product to a thermal and/or reactive treatment that is reproducible and uniform in its effect from this starting point, it is proposed in one embodiment that into the sheath tube's inner bore a first gas-permeable gas diffuser is inserted which is displaceable along the sheath tube's longitudinal axis and is pressed against the intermediate product during the thermal treatment.

Abstract: In known methods for producing a glass component, a void-containing intermediate product containing doped or non-doped SiO2 is inserted into a sheath tube composed of glass, which has a longitudinal axis and an inner bore, and is thermally treated therein. In order to subject the intermediate product to a thermal and/or reactive treatment that is reproducible and uniform in its effect from this starting point, it is proposed in one embodiment that into the sheath tube's inner bore a first gas-permeable gas diffuser is inserted which is displaceable along the sheath tube's longitudinal axis and is pressed against the intermediate product during the thermal treatment.

Abstract: An assembly includes first and second ropes and a suspension element. The first rope is securable to a first attachment in a work area. A person can be coupled to the first rope. The second rope is available for lowering the person. The suspension element is secured in a securing region. A force-transmitting coupling is creatable between the second rope and the suspension element. The first and second ropes are coupled to each other over a first lowering region. The second rope is decoupleable non-destructively from the first rope from an end of the first lowering region. A person can be lowered in a second lowering region by the second rope. The weight of the person in the second lowering region is transferable from the second rope via the suspension element to the securing region.

Abstract: Provided is a set of mass labels, each mass label in the set comprising a mass marker moiety attached via a cleavable linker to a mass normalization moiety, each mass label in the set having a common mass; wherein the set comprises a plurality of groups of mass labels, the mass of the mass marker moiety being the same for mass labels within a group, the mass of the mass marker moiety being different between groups; the mass marker moiety is capable of fragmentation into two or three fragments; and the mass of at least one fragment of the mass marker moiety differs between mass labels within a group.

Abstract: Disclosed are a method and a device for coating printed boards (1) with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened. The device used for carrying out said method comprises at least one roller-type coating plant (2) with an application roller (4), a dosing roller (5) that embodies a dosing gap along with the application roller (4), a storage container (6) for the solder stop lacquer or galvanoresist, which is disposed above the roller-type coating plant (2), means for conveying the printed boards (7), means for drying the solder stop lacquer (11), and an apparatus (13) for turning the coated printed boards. Said roller-type coating plant (2) is provided with only one coating unit for coating the bottom side of the printed boards.

Abstract: The invention relates to a process for preparing hydroxyindolylglyoxylamides in high yields and particularly pure form.

Abstract: A unit carrier for secondary units of a motor vehicle internal combustion engine, having secondary unit attachment devices and engine block attachment devices. The unit carrier has a planned deformation point, which allows a relative displacement between the secondary unit and the engine block in case of a vehicle collision, if a predefined force is exceeded. The unit carrier is used in motor vehicles having a front engine arrangement.

Abstract: The invention relates to novel modifications of the compound 2-amino-4-(4-fluorobenzylamino)-1-ethoxy-carbonylaminobenzene of the processes for their preparation and their use in pharmaceutical compositions.

Abstract: A process for the production of 1,2,4-triaminobenzene carbamic acid esters is described, said process being characterised by the use of pyrocarbonate or polypyrocarbonate. The use of pyrocarbonate or polypyrocarbonate brings about a rise in yield and increased purity of the product.