Abstract: Ceramic molds are produced by sintering selected portions of a ceramic material with a laser beam to form the mold. The process involves application of at least one layer of a liquid suspension or plastic mass, drying the applied layer, and sintering the dried layer with the laser beam at selected areas to form the mold.

Abstract: An apparatus for determining the properties of a material, that is to be examined, by applying a swept-frequency high frequency signal and measuring a reflection factor of the resonance signal. The apparatus has a microwave supply conductor for feeding the high frequency signal, a sensor waveguide that is coupled to the microwave supply conductor, a helical conductor that is arranged inside the sensor waveguide, and an intermediate layer between a first end of the sensor waveguide and the helical conductor. Typically, the sensor waveguide is cylindrical and the helical conductor is supported centrally therein along the longitudinal axis of the sensor waveguide by a support that is part of the intermediate layer. A coupling layer is provided between the helical conductor and the material to be examined in the region of a second end face of the sensor waveguide.

Abstract: The invention relates to the use of polygalacturonides as food additives, said polygalacturonides being obtainable via the following process steps:

Abstract: In a method for the separation of supercritical gas from substances dissolved in the gas with a membrane through which the gas passes while the substances dissolved in the gas is retained, a pore-free membrane of a polymer perfluoro-2,2-diemthyl-1,3-dioxole is used as a membrane in the separation process.

Abstract: The invention relates to the use of polygalacturonides as food additives, said polygalacturonides being obtainable via the following process steps: a) a pectinous plant material is subjected to a pectin extraction in aqueous solution; b) the solids are removed from the suspension obtained in step a), consisting of liquid phase including dissolved pectin and solids from the plant material; c) the pectin is precipitated from the liquid phase obtained in step b); d) the pectin obtained in step c) is dissolved in an aqueous solution and cleaved with purified endo-polygalacturonase; e) the polygalacturonides obtained in step d) are processed into a polygalacturonide preparation without using an additional separation step and without hydrolyzing ester groups that are present.

Abstract: A mechanism for the contactless gripping and positioning of a component having a planar peripheral edge region, including a sound producing device producing a pattern of levitation sound waves for keeping the component in suspension at a selected position. The sound producing device is configured wherein only the peripheral edge region of the component lies in the sound wave pattern to be acted upon thereby and is fixed in the sound wave pattern by Bernoulli forces. The total surface area of the sound producing device is less than the component's total surface area facing the sound producing device.

Abstract: A two-layered anode (1′) is used for the electrochemical polymerisation. The lower layer (2) consists of a non-conductive carrier material to which a conductive electrode layer (3′) is applied, the electrode layer being removed in part-areas in order to form non-conductive areas. the non-conductive areas have a predetermined structure which corresponds to the structure of the structured polymer film (11) to be formed. the anode (1′) is held together with a platinum cathode in an electrolyte into which compounds of low molecular weight, preferably monomers of the polymer film (11) to be formed, are introduced. A current flow is produced through the electrolyte via the anode (1′) and cathode. In the course of this a conductive polymer film (11) of the predetermined structure is formed on the conductive areas which are brought into contact with the electrolyte.

Abstract: The invention relates to a novel method for generating nucleation centers for the selective heterogeneous metal cluster growth on DNA molecules by employing metal complexes which are being bonded covalently to the bases of the DNA. The nucleation centers serve as preferred locations of chemical deposition of metals on the DNA from a solution so that clusters or thin metal films can be grown on the biological template without metallic deposition products being formed homogeneously in the solution. The method provides the possibility of controlling the metallization via the sequence of the employed DNA and is thus in principle sequence-specific.

Abstract: The thermographic examination of functional surfaces of forming tools in the forming process is important for the selection of an optimal tool material or an optimal coating material for a particular forming process and for a particular workpiece composition, and also for the optimization of process parameters of the forming process. The task of the present invention is comprised therein, to develop a device and a process, which enables the rapid and simple thermographic examination of functional surfaces of forming tools during the forming process. This task is solved by a process and a device, in which the sought after temperature distribution of the functional surfaces during the forming process are conducted, from point of origin, through a channel, in the direction of a temperature measuring device, via thermal radiation or, in certain cases, thermal conductivity.

Abstract: A measuring system for measuring the accuracy of the position and track of a machine element moved along a predetermined track. The system includes a predetermined track along which a machine element moves relative thereto and a measuring device for measuring the position of the machine element along the track. The track has a guide of the measuring device, on which a carriage is guided along the track, wherein the machine element can be fastened to the carriage. A component of the measuring device is fastened on the carriage and a drive integrated with the measuring device moves the carriage in a controlled manner along the guide into predetermined positions and at predetermined speeds.

Abstract: A measuring arrangement suitable for checking the geometric and dynamic accuracy of two numerically controlled machine elements which are displaceable with respect to each other. A base body is fastened on a carriage of a machine tool to be tested, on which a linear guide with a linear measuring device is rotatably seated. A measuring element is fastened in a spindle of the machine tool and is connected via a guide with the carriage. The measuring element has three pivot bearings and a further linear guide, as well as further measuring devices for measuring the rotating movements around the pivot bearings and along the further linear guide. Thus the measuring arrangement has six degrees of freedom, wherein four rotary and two translatory joints make possible the registration of individual deviations.