Abstract: The present disclosure relates to a biochip comprising at least one coupling arrangement for electrical stimulation of biological material or for electrical measurements on the biological material, the biochip comprising: a support structure arranged at and/or in the coupling arrangement; and a layer, a layer surface of which is arranged at the coupling arrangement, and an opposite layer surface of which forms a coupling surface for stimulation of the biological material and/or for measurement on the biological material. To achieve improved stimulation efficiency of the biochip, it is proposed that the layer has ferroelectric properties.

Abstract: The present disclosure relates to a piezoelectric membrane microelectrode array for spatially resolved electrical or mechanical stimulation and simultaneous spatially resolved measurement of electrical or mechanical activity of biological material. The array comprises at least two membrane microelectrode units, that are both arranged on a common substrate.

Abstract: In a method for transferring nanostructures into a substrate, the following order of steps is used: decorating a substrate with nanomaterials (13), etching the substrate (10), applying a coating (15), removing the nanomaterials (13), and etching the substrate (10).

Abstract: In a method for transferring nanostructures into a substrate, the following order of steps is used: decorating a substrate with nanomaterials (13), etching the substrate (10), applying a coating (15), removing the nanomaterials (13), and etching the substrate (10).

Abstract: A device for effecting heat transfer to rotating equipment, in particular gas turbines, is provided. A gas turbine (10) comprises a first rotating unit (11), i.e. an internal shaft and a second fixed unit (16), i.e. a housing. A third rotating unit (14, 17), i.e. rotor blades and plates connected to the rotor blades are disposed between the first unit (11) and the second unit (16). The first (11) and third (14, 17) units are rotatable around a common axis (12) and with respect to each other. At least one device (21) for improving heat transfer by convection is assigned to the first rotating unit (11), i.e. the internal shaft.

Abstract: In a method for preparing a sample for electron microscopic examinations, in particular with a transmission electron microscope (TEM), a) a substrate containing the sample to be prepared on a sample locus is provided in a vacuum chamber, b) a protective layer is applied onto a surface of the sample locus, c) the sample located under the protective layer is separated from the substrate by an ion beam, the protective layer acting as a mask, and d) in the vacuum chamber, the separated sample is removed from the substrate.

Abstract: In a method for preparing a sample for electron microscopic examinations, in particular with a transmission electron microscope (TEM), a) a substrate containing the sample to be prepared on a sample locus is provided in a vacuum chamber, b) a protective layer is applied onto a surface of the sample locus, c) the sample located under the protective layer is separated from the substrate by an ion beam, the protective layer acting as a mask, and d) in the vacuum chamber, the separated sample is removed from the substrate.

Abstract: A device for effecting heat transfer to rotating equipment, in particular gas turbines, is provided. A gas turbine (10) comprises a first rotating unit (11), i.e. an internal shaft and a second fixed unit (16), i.e. a housing. A third rotating unit (14, 17), i.e. rotor blades and plates connected to said rotor blades are disposed between the first unit (11) and the second unit (16). Said first (11) and third (14, 17) units are rotatable around a common axis (12) and with respect to each other. According to said invention, at least one device (21) for improving heat transfer by convection is assigned to the first rotating unit (11), i.e. the internal shaft.

Abstract: The present invention is directed to the use of polymer blend films consisting of polycarbonate and polyalkylene terephthalate supports for diagnostic test strips.

Abstract: A process for the production of optically isotropic extrusion films is disclosed. Accordingly in a first process step a thermoplsatic resin is extruded to form a film having a thickness below 600 .mu.m. The second process step entailsa) calendering said film between a ground elastic roller and a high gloss steel roller to produce a film having a high gloss surface and a matt surface, orb) calendering said film between a lacquered elastic roller and a high gloss steel roller to produce a film having high gloss on both surfaces, orc) calendering said film between a ground elastic roller and a high gloss steel roller to produce a film having a high gloss surface and a matt surface, and then coating said matt surface with a melt of said thermoplastic polymer and calendering the resulting coated film between a high gloss steel roller and a ground elastic roller, with the high gloss side of the coated film facing the roller of elastic material.

Abstract: Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable for preparing printing ribbons, in particular for thermal and electrothermal recording processes.

Abstract: This invention relates to carbon-containing moulded bodies based on thermoplastic polycarbonates and thermoplastic polyalkylene terephtalates with an addition of carbon black and graphite and to a process for the production of these moulded bodies.

Abstract: A gas turbine jet propulsion unit of multi-shaft-double-flow construction in which a front compressor or fan supplies compressed air into a secondary channel arranged coaxially to the propulsion unit axis and formed between outer and inner wall structures, from which a secondary air component is taken and blown out against the turbine housing structures for purposes of turbine component cooling; the secondary air channel extends essentially over the entire propulsion unit length or at least up to the area near the turbine housing structure while the secondary air component is taken off from the secondary flow by way of openings in the inner wall structure which are arranged in direct proximity of the respective turbine housing structure.

Abstract: Metal-plastic laminates are prepared by coating a metal component with a polyurethane adhesion promoter in dissolved or dispersed form, drying the liquid phase and coating with the melt of a thermoplastic by the extrusion coating process.

Abstract: Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable as electrically insulating films, for example as dielectric for capacitors and as conductor track films.

Abstract: This development is concerned with aromatic thermoplastic polycarbonates with special chain terminators which give the polymers enhanced hydrolysis resistance and impact toughness. These chain terminators are alkyl substituted monohydroxy phenyls in which each phenyl is substituted by one alkyl group having 8 or 9 carbon atoms and about 47 to 89% of its hydrogen atoms trisubstituted on carbon atoms with up to about 20% of the substituents in the ortho position and the balance at the para position. This development is also concerned with a process for synthesizing such polymers by using such chain terminators as reactants in generically known synthesis methods for polycarbonates.

Abstract: Moulding compositions for the production of mouldings with fire-retarding properties and with a polytriazine structure, comprising mixtures of(A) 10 to 90% by weight of at least one polyfunctional, aromatic halogen-free cyanic acid ester or a prepolymer thereof which is still fusible or soluble in solvents, and(B) 10 to 90% by weight of at least one polyfunctional, aromatic halogen-containing cyanic acid ester or a prepolymer thereof which is still fusible or soluble in solvents.

Abstract: Aromatic cyanic acid esters are obtained by an improved process. Optionally substituted mononuclear phenols or polynuclear phenols optionally interrupted through bridge members such as ##EQU1## and/or divalent hydrocarbon bridges are condensated in form of an aqueous phenolate solution with cyanogen halide dissolved in organic solvents in the presence of catalytic quantities of a tertiary amine in a highly disperse system (two phase boundary reaction).The cyanic acid esters obtained are highly pure and stable.

Abstract: A molded article exhibiting sustained release gas action to combat insects, without incurring odor build-up, comprising the product of curing a composition comprising 0,0-dimethyl-0-(2,2-dichlorovinyl)phosphate, an ethylenically unsaturated polyester, a vinyl monomer copolymerizable with the polyester, at least one solid or liquid filler, and an ethylenically unsaturated compound of the formula ##EQU1## in which X is --OR or --OH, Y is --H and Z is --COOR, orX is --OH, Y is --COOR and Z is --H, orX is --O-- or >N-R, Y is >CO and Z is --H, in which case X and Y are bonded together to form an anhydride or imide ring, andR is an aliphatic radical with up to 12 carbon atoms. Desirably curing is effected in the presence of a peroxide of the formula ##EQU2## in which A and B each is alkyl, aryl, aralkyl, alkoxy or aryloxy of 6 to 12 carbon atoms.