Abstract: A method for the reduction organic molecules comprising a Ruthenium-Triphosphine complex with aromatic ligands at the phosphors which are ortho or meta substituted.

Abstract: A method for reading out a resistive memory cell comprising two electrodes that are spaced from each other by an ion-conducting resistive material was developed, the memory cells being transferrable from a stable state having a higher resistance value (high resistive state, HRS) to a stable state having a lower resistance value (low resistive state, LRS) when a write voltage is applied.

Abstract: The present invention relates to a method for determining the propensity of a fluid for calcification.

Abstract: A method for synthesizing a primary amine, having the steps of: a) providing at least one dianhydrohexitol, and b) aminating the dianhydrohexitol by reacting same with ammonia, the amination being performed by heterogeneous catalysis using a hydrogenation catalyst in the presence of hydrogen.

Abstract: A method for synthesizing a primary amine, having the steps of: a) providing at least one dianhydrohexitol, and b) aminating the dianhydrohexitol by reacting same with ammonia, the amination being performed by heterogeneous catalysis using a hydrogenation catalyst in the presence of hydrogen.

Abstract: A method for producing a bonded joint between a light metal of a first component and a steel material of a second component, wherein a protective-gas joining process is used, a zinc-based filler material is used, and wherein an arc of the protective-gas joining process reaches at least the steel material of the second component, wherein a phase space of at least intermetallic phase composed of iron and the light metal is produced in a joining region adjacent to the steel material. Introduction of heat occurs so that the joint to the steel material is a solder or brazed connection and, during joining, a detachment of part of the solidified intermetallic phase(s) from the steel material of the second component starts in a melt of a solder or brazed matrix formed by the filler material and the at least one intermetallic phase is embedded in the solder matrix.

Abstract: The invention relates to a liquid column damping system, particularly for damping building vibrations, comprising a tank (B, S1, S2) filled with a liquid, said tank having, in particular, a substantially U-shaped geometry in at least one direction. At least two columns (S1, S2) of the tank arranged at a distance from each other, particularly for forming communicating liquid columns, are connected by a base region (B) of the tank, and means for adjusting the damping of the liquid column damping system and/or the natural frequency of the liquid column damping system are provided. At least one column wall region (W1) in at least one of the columns (S1, S2), preferably in all columns, can be moved in order to change the column cross-section.

Abstract: The invention relates to an androgynous coupling device (10) for connecting modules, in particular for constructing a spacecraft of modular design, wherein, in order to connect the modules, the coupling device (10) can be coupled to an identically constructed further androgynous coupling device and has a plurality of coupling elements (30, 32). It is provided that the androgynous coupling device (10) has a covering element (18) which covers the coupling elements (30, 32) in a passive state of the coupling device (10), wherein a first of the coupling elements (30) can be moved outwardly through the covering element (18) for active coupling to the identically constructed further coupling device. The invention furthermore relates to a module, in particular a module for constructing a spacecraft of modular design, having at least one such coupling device (10).

Abstract: An axial-flow blood pump has a rotatable impeller assembly rotatable about an axis and itself having a radially projecting blade and permanent magnets, A stationary stator assembly has stator windings interacting with the permanent magnets and a bearing system supporting the rotatable impeller assembly for rotation about the axis relative to the stator assembly. A stent implantable into a blood vessel is connected to ends of supports for coaxially mounting the stator assembly carrying the impeller assembly in the stent.

Abstract: A device and a method is disclosed for detecting an undesired escape of fluids, in that electric potentials are measured using a grid of non-polarizable measuring electrodes above an underground storage facility. Potential differences are determined in such a way that disturbances due to injection borehole or due to the exchange of fluids in the underground storage facility are eliminated. This is done either through the use of the symmetry of the potential distribution around the injection borehole in that the potential differences of pairs of measuring electrodes are observed whose mid-points coincide with the injection borehole or else through the computational simulation of the potentials that arise due to the fluid movement in the underground storage facility without a leak. These are then subtracted from the measured potentials. If the ascertained potential differences exceed a limit value, this is considered as an indication of a leak.

Abstract: The invention relates to a hydraulic coupling bush (1), comprising a bush housing (4), in particular a sleeve-shaped hush housing (4), in which a hush tappet (12), an axially movable compression sleeve (13) that surrounds the hush tappet (12) in an axially parallel manner, in particular coaxially, and an axially movable retaining sleeve (16) that surrounds the compression sleeve (13) in an axially parallel manner, in particular coaxially, are arranged in an axially parallel manner, in particular coaxially, the outer surface of the retaining sleeve supporting or releasing securing elements (18) arranged in the bush housing (4) in the dial direction and the in particular annular end face (16a) of the retaining sleeve lying at least substantially in one plane with the end faces (12a) of the bush tappet (12) and of the bush housing (4) in the decoupled state, wherein the compression sleeve is ex posed from the inside to a hydraulic fluid to be conveyed through the bush at least substantially without applying axia

Abstract: The application relates to a method for determining the cut quality of a laser cutting process, said quality being assessed on the basis of the formation of solidification ridges along the cut face and/or burr formation on the lower edge of the cut face. In said method, a virtual laser cutting machine in a simulation program can be virtually operated with a set of values P0 from a parameter space P.

Abstract: A method for reading out a memory element comprises a series connection. of at least two memory cells A and B each have a stable state A0 or B0 having higher resistance and a stable state A1 or B1 having lower electrical resistance. An electrical variable of the series circuit is measured and an electrical variable is selected for this measurement, to which the memory cell A in state A0 makes a different contribution than the memory cell B in state B0 and/or to which the memory cell A instate A1 makes a different contribution than the memory cell B in state B1. The two state combinations A1 and B0 or A0 and B1 then result in differing values for the electrical variable that is measured by way of the series circuit. These state combinations can thus be distinguished from each other without having to change the logic state of the memory element during reading.

Abstract: The invention relates to a method for determining the location of the corrosion sites in reinforced concrete, wherein a value (UB, UC) of a voltage potential (UB, UC) present at each measurement location is measured at at least two measurement locations relative to a reference voltage potential (UA) present at a reference location, and information about the direction to the corrosion site (K) and/or the distance to the corrosion site (K) is determined from the location information (XB, YB, XC, YC) for each measurement location, particularly also the reference location, and the voltage potential (UA, UB, UC) present at each location.

Abstract: A method for determining a replicative senescence status of a cell includes determining a methylation status of at least one CpG-dinucleotide within a region of at least one of about 50,000 bp upstream and downstream of at least one CpG-dinucleotide selected from the group consisting of GRM7-CpG-site #1, CASR-CpG-site #1, PRAMEF2-CpG-site #1, SELP-CpG-site #1, CASP14-CpG-site #1, and KRTAP13-3-CpG-site #1. The methylation status of each of the at least one CpG-dinucleotide determined is compared with a reference methylation status of the respective CpG-dinucleotide.

Abstract: Disclosed is a memory element, a stack, and to a memory matrix in which the memory element can be used. Also disclosed is a method for operating the memory matrix, and to a method for determining the true value of a logic operation in an array comprising memory elements. The memory element has at least a first stable state 0 and a second stable state 1. By applying a first write voltage V0, this memory element can be transferred into the high-impedance state 0 and by applying a second write voltage V1, it can be transferred into the likewise high-impedance state 1. By applying a read voltage VR, the magnitude of which is smaller than the write voltages V0 and V1, the memory element exhibits different electrical resistance values. In the parasitic current paths occurring in a memory matrix, the memory element acts as a high-impedance resistor, without in principle being limited to unipolar switching.

Abstract: The invention relates to an electrical linear drive, in particular for a pump system of an artificial heart, with a movable part and a stationary part, wherein the stationary part is formed by a permanent magnet arrangement and the movable part is formed by a coil arrangement, or vice versa, and wherein the coil arrangement and the permanent magnet arrangement can be moved to and fro relative to each other in an axial direction by means of current passed through the coil arrangement. The invention further relates to an electrical linear drive of this kind in which the permanent magnet arrangement is designed as a stack of frame-shaped, in particular ring-shaped magnets, which are magnetized alternately radially and axially in the axial direction, such that the magnetic field is strengthened on one side of the frame.

Abstract: The invention relates to a device for determining the inertial parameters of a body, particularly a motor vehicle. Said device comprises a receiving platform (P) on which the body (F10) can be placed. The receiving platform (P) is provided with a central, especially spherical joint (G00) about which the receiving platform (P) can be moved with three degrees of freedom (x, y, z) by means of drive units (Z1, Z2, Z3). The invention further relates to a method for determining the inertial parameters of a body, particularly by means of a device disclosed in one of the preceding claims. In said method, a control system is provided which allows a receiving platform (P) and a body (F10) mounted thereon to be moved about a central pivot (G00) with three degrees of freedom (x, y, z).

Abstract: The present invention relates to a method and a device for the machining of an object using a tool, in which the tool (2) or the object (18) is guided using a handling apparatus, which has multiple movement axes for the coarse positioning of the tool (2) or object (18), which form a kinematic chain. In the method, an additional actuator (3), which has a higher positioning precision in at least one dimension or axis than the other movement axes, is inserted between a terminal link (1) of the kinematic chain and the tool (2) or object (18). A relative movement of the tool (2) or terminal link (1) of the kinematic chain to the object (18) is detected using at least one sensor (5) and a deviation from a target movement path is compensated for using the additional actuator (3). The method and the associated device allow the use of robots or other handling apparatuses having lower path precision for applications which require a high precision during the guiding of the tool.

Abstract: The present invention relates to a method for determining a lateral relative movement between a processing head and a workpiece during processing the workpiece as well as a device to carry it out. In the method a surface of the workpiece (12) is illuminated in the region of the processing head with an optical radiation (2). The optical radiation (3) reflected from the surface of the workpiece (12) in the region of the processing head is repeatedly detected in a locally resolved manner by an optical detector (9), which is firmly fixed mechanically to the processing head, to obtain optical reflection patterns. The repeated detection occurs in temporal intervals in which the temporally successive reflection patterns of overlapping surface regions of the workpiece (12) are obtained. The lateral relative movement is determined by comparing the temporally successive reflection patterns.